hpsa.c (34592254c13324add1972e6a7d5f6636d95ade33) hpsa.c (c2adae44e9161612c89e52d233c83086195f454c)
1/*
2 * Disk Array driver for HP Smart Array SAS controllers
3 * Copyright 2014-2015 PMC-Sierra, Inc.
4 * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.

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270static void hpsa_drain_accel_commands(struct ctlr_info *h);
271static void hpsa_flush_cache(struct ctlr_info *h);
272static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h,
273 struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
274 u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk);
275static void hpsa_command_resubmit_worker(struct work_struct *work);
276static u32 lockup_detected(struct ctlr_info *h);
277static int detect_controller_lockup(struct ctlr_info *h);
1/*
2 * Disk Array driver for HP Smart Array SAS controllers
3 * Copyright 2014-2015 PMC-Sierra, Inc.
4 * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.

--- 261 unchanged lines hidden (view full) ---

270static void hpsa_drain_accel_commands(struct ctlr_info *h);
271static void hpsa_flush_cache(struct ctlr_info *h);
272static int hpsa_scsi_ioaccel_queue_command(struct ctlr_info *h,
273 struct CommandList *c, u32 ioaccel_handle, u8 *cdb, int cdb_len,
274 u8 *scsi3addr, struct hpsa_scsi_dev_t *phys_disk);
275static void hpsa_command_resubmit_worker(struct work_struct *work);
276static u32 lockup_detected(struct ctlr_info *h);
277static int detect_controller_lockup(struct ctlr_info *h);
278static void hpsa_disable_rld_caching(struct ctlr_info *h);
278static int hpsa_luns_changed(struct ctlr_info *h);
279
280static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
281{
282 unsigned long *priv = shost_priv(sdev->host);
283 return (struct ctlr_info *) *priv;
284}
285

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6375 TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
6376 c->Request.Timeout = 0;
6377 c->Request.CDB[0] = cmd;
6378 c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */
6379 c->Request.CDB[7] = (size >> 16) & 0xFF;
6380 c->Request.CDB[8] = (size >> 8) & 0xFF;
6381 c->Request.CDB[9] = size & 0xFF;
6382 break;
279static int hpsa_luns_changed(struct ctlr_info *h);
280
281static inline struct ctlr_info *sdev_to_hba(struct scsi_device *sdev)
282{
283 unsigned long *priv = shost_priv(sdev->host);
284 return (struct ctlr_info *) *priv;
285}
286

--- 6089 unchanged lines hidden (view full) ---

6376 TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
6377 c->Request.Timeout = 0;
6378 c->Request.CDB[0] = cmd;
6379 c->Request.CDB[6] = (size >> 24) & 0xFF; /* MSB */
6380 c->Request.CDB[7] = (size >> 16) & 0xFF;
6381 c->Request.CDB[8] = (size >> 8) & 0xFF;
6382 c->Request.CDB[9] = size & 0xFF;
6383 break;
6384 case BMIC_SENSE_DIAG_OPTIONS:
6385 c->Request.CDBLen = 16;
6386 c->Request.type_attr_dir =
6387 TYPE_ATTR_DIR(cmd_type, ATTR_SIMPLE, XFER_READ);
6388 c->Request.Timeout = 0;
6389 /* Spec says this should be BMIC_WRITE */
6390 c->Request.CDB[0] = BMIC_READ;
6391 c->Request.CDB[6] = BMIC_SENSE_DIAG_OPTIONS;
6392 break;
6393 case BMIC_SET_DIAG_OPTIONS:
6394 c->Request.CDBLen = 16;
6395 c->Request.type_attr_dir =
6396 TYPE_ATTR_DIR(cmd_type,
6397 ATTR_SIMPLE, XFER_WRITE);
6398 c->Request.Timeout = 0;
6399 c->Request.CDB[0] = BMIC_WRITE;
6400 c->Request.CDB[6] = BMIC_SET_DIAG_OPTIONS;
6401 break;
6383 case HPSA_CACHE_FLUSH:
6384 c->Request.CDBLen = 12;
6385 c->Request.type_attr_dir =
6386 TYPE_ATTR_DIR(cmd_type,
6387 ATTR_SIMPLE, XFER_WRITE);
6388 c->Request.Timeout = 0;
6389 c->Request.CDB[0] = BMIC_WRITE;
6390 c->Request.CDB[6] = BMIC_CACHE_FLUSH;

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8075 return;
8076
8077 if (hpsa_ctlr_needs_rescan(h) || hpsa_offline_devices_ready(h)) {
8078 scsi_host_get(h->scsi_host);
8079 hpsa_ack_ctlr_events(h);
8080 hpsa_scan_start(h->scsi_host);
8081 scsi_host_put(h->scsi_host);
8082 } else if (h->discovery_polling) {
6402 case HPSA_CACHE_FLUSH:
6403 c->Request.CDBLen = 12;
6404 c->Request.type_attr_dir =
6405 TYPE_ATTR_DIR(cmd_type,
6406 ATTR_SIMPLE, XFER_WRITE);
6407 c->Request.Timeout = 0;
6408 c->Request.CDB[0] = BMIC_WRITE;
6409 c->Request.CDB[6] = BMIC_CACHE_FLUSH;

--- 1684 unchanged lines hidden (view full) ---

8094 return;
8095
8096 if (hpsa_ctlr_needs_rescan(h) || hpsa_offline_devices_ready(h)) {
8097 scsi_host_get(h->scsi_host);
8098 hpsa_ack_ctlr_events(h);
8099 hpsa_scan_start(h->scsi_host);
8100 scsi_host_put(h->scsi_host);
8101 } else if (h->discovery_polling) {
8102 hpsa_disable_rld_caching(h);
8083 if (hpsa_luns_changed(h)) {
8084 struct Scsi_Host *sh = NULL;
8085
8086 dev_info(&h->pdev->dev,
8087 "driver discovery polling rescan.\n");
8088 sh = scsi_host_get(h->scsi_host);
8089 if (sh != NULL) {
8090 hpsa_scan_start(sh);

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8412 if (c->err_info->CommandStatus != 0)
8413out:
8414 dev_warn(&h->pdev->dev,
8415 "error flushing cache on controller\n");
8416 cmd_free(h, c);
8417 kfree(flush_buf);
8418}
8419
8103 if (hpsa_luns_changed(h)) {
8104 struct Scsi_Host *sh = NULL;
8105
8106 dev_info(&h->pdev->dev,
8107 "driver discovery polling rescan.\n");
8108 sh = scsi_host_get(h->scsi_host);
8109 if (sh != NULL) {
8110 hpsa_scan_start(sh);

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8432 if (c->err_info->CommandStatus != 0)
8433out:
8434 dev_warn(&h->pdev->dev,
8435 "error flushing cache on controller\n");
8436 cmd_free(h, c);
8437 kfree(flush_buf);
8438}
8439
8440/* Make controller gather fresh report lun data each time we
8441 * send down a report luns request
8442 */
8443static void hpsa_disable_rld_caching(struct ctlr_info *h)
8444{
8445 u32 *options;
8446 struct CommandList *c;
8447 int rc;
8448
8449 /* Don't bother trying to set diag options if locked up */
8450 if (unlikely(h->lockup_detected))
8451 return;
8452
8453 options = kzalloc(sizeof(*options), GFP_KERNEL);
8454 if (!options) {
8455 dev_err(&h->pdev->dev,
8456 "Error: failed to disable rld caching, during alloc.\n");
8457 return;
8458 }
8459
8460 c = cmd_alloc(h);
8461
8462 /* first, get the current diag options settings */
8463 if (fill_cmd(c, BMIC_SENSE_DIAG_OPTIONS, h, options, 4, 0,
8464 RAID_CTLR_LUNID, TYPE_CMD))
8465 goto errout;
8466
8467 rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
8468 PCI_DMA_FROMDEVICE, NO_TIMEOUT);
8469 if ((rc != 0) || (c->err_info->CommandStatus != 0))
8470 goto errout;
8471
8472 /* Now, set the bit for disabling the RLD caching */
8473 *options |= HPSA_DIAG_OPTS_DISABLE_RLD_CACHING;
8474
8475 if (fill_cmd(c, BMIC_SET_DIAG_OPTIONS, h, options, 4, 0,
8476 RAID_CTLR_LUNID, TYPE_CMD))
8477 goto errout;
8478
8479 rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
8480 PCI_DMA_TODEVICE, NO_TIMEOUT);
8481 if ((rc != 0) || (c->err_info->CommandStatus != 0))
8482 goto errout;
8483
8484 /* Now verify that it got set: */
8485 if (fill_cmd(c, BMIC_SENSE_DIAG_OPTIONS, h, options, 4, 0,
8486 RAID_CTLR_LUNID, TYPE_CMD))
8487 goto errout;
8488
8489 rc = hpsa_scsi_do_simple_cmd_with_retry(h, c,
8490 PCI_DMA_FROMDEVICE, NO_TIMEOUT);
8491 if ((rc != 0) || (c->err_info->CommandStatus != 0))
8492 goto errout;
8493
8494 if (*options && HPSA_DIAG_OPTS_DISABLE_RLD_CACHING)
8495 goto out;
8496
8497errout:
8498 dev_err(&h->pdev->dev,
8499 "Error: failed to disable report lun data caching.\n");
8500out:
8501 cmd_free(h, c);
8502 kfree(options);
8503}
8504
8420static void hpsa_shutdown(struct pci_dev *pdev)
8421{
8422 struct ctlr_info *h;
8423
8424 h = pci_get_drvdata(pdev);
8425 /* Turn board interrupts off and send the flush cache command
8426 * sendcmd will turn off interrupt, and send the flush...
8427 * To write all data in the battery backed cache to disks

--- 626 unchanged lines hidden --- 		8505static void hpsa_shutdown(struct pci_dev *pdev)
8506{
8507 struct ctlr_info *h;
8508
8509 h = pci_get_drvdata(pdev);
8510 /* Turn board interrupts off and send the flush cache command
8511 * sendcmd will turn off interrupt, and send the flush...
8512 * To write all data in the battery backed cache to disks

--- 626 unchanged lines hidden ---