int qdepth, int reason);
static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd);
+static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd);
static int hpsa_slave_alloc(struct scsi_device *sdev);
static void hpsa_slave_destroy(struct scsi_device *sdev);
static int __devinit hpsa_lookup_board_id(struct pci_dev *pdev, u32 *board_id);
static int __devinit hpsa_wait_for_board_state(struct pci_dev *pdev,
void __iomem *vaddr, int wait_for_ready);
+static inline void finish_cmd(struct CommandList *c);
#define BOARD_NOT_READY 0
#define BOARD_READY 1
.change_queue_depth = hpsa_change_queue_depth,
.this_id = -1,
.use_clustering = ENABLE_CLUSTERING,
+ .eh_abort_handler = hpsa_eh_abort_handler,
.eh_device_reset_handler = hpsa_eh_device_reset_handler,
.ioctl = hpsa_ioctl,
.slave_alloc = hpsa_slave_alloc,
return FAILED;
}
+static int hpsa_send_abort(struct ctlr_info *h, unsigned char *scsi3addr,
+ struct CommandList *abort)
+{
+ int rc = IO_OK;
+ struct CommandList *c;
+ struct ErrorInfo *ei;
+
+ c = cmd_special_alloc(h);
+ if (c == NULL) { /* trouble... */
+ dev_warn(&h->pdev->dev, "cmd_special_alloc returned NULL!\n");
+ return -ENOMEM;
+ }
+
+ fill_cmd(c, HPSA_ABORT_MSG, h, abort, 0, 0, scsi3addr, TYPE_MSG);
+ hpsa_scsi_do_simple_cmd_core(h, c);
+ dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: do_simple_cmd_core completed.\n",
+ __func__, abort->Header.Tag.upper, abort->Header.Tag.lower);
+ /* no unmap needed here because no data xfer. */
+
+ ei = c->err_info;
+ switch (ei->CommandStatus) {
+ case CMD_SUCCESS:
+ break;
+ case CMD_UNABORTABLE: /* Very common, don't make noise. */
+ rc = -1;
+ break;
+ default:
+ dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: interpreting error.\n",
+ __func__, abort->Header.Tag.upper,
+ abort->Header.Tag.lower);
+ hpsa_scsi_interpret_error(c);
+ rc = -1;
+ break;
+ }
+ cmd_special_free(h, c);
+ dev_dbg(&h->pdev->dev, "%s: Tag:0x%08x:%08x: Finished.\n", __func__,
+ abort->Header.Tag.upper, abort->Header.Tag.lower);
+ return rc;
+}
+
+/*
+ * hpsa_find_cmd_in_queue
+ *
+ * Used to determine whether a command (find) is still present
+ * in queue_head. Optionally excludes the last element of queue_head.
+ *
+ * This is used to avoid unnecessary aborts. Commands in h->reqQ have
+ * not yet been submitted, and so can be aborted by the driver without
+ * sending an abort to the hardware.
+ *
+ * Returns pointer to command if found in queue, NULL otherwise.
+ */
+static struct CommandList *hpsa_find_cmd_in_queue(struct ctlr_info *h,
+ struct scsi_cmnd *find, struct list_head *queue_head)
+{
+ unsigned long flags;
+ struct CommandList *c = NULL; /* ptr into cmpQ */
+
+ if (!find)
+ return 0;
+ spin_lock_irqsave(&h->lock, flags);
+ list_for_each_entry(c, queue_head, list) {
+ if (c->scsi_cmd == NULL) /* e.g.: passthru ioctl */
+ continue;
+ if (c->scsi_cmd == find) {
+ spin_unlock_irqrestore(&h->lock, flags);
+ return c;
+ }
+ }
+ spin_unlock_irqrestore(&h->lock, flags);
+ return NULL;
+}
+
+/* Send an abort for the specified command.
+ * If the device and controller support it,
+ * send a task abort request.
+ */
+static int hpsa_eh_abort_handler(struct scsi_cmnd *sc)
+{
+
+ int i, rc;
+ struct ctlr_info *h;
+ struct hpsa_scsi_dev_t *dev;
+ struct CommandList *abort; /* pointer to command to be aborted */
+ struct CommandList *found;
+ struct scsi_cmnd *as; /* ptr to scsi cmd inside aborted command. */
+ char msg[256]; /* For debug messaging. */
+ int ml = 0;
+
+ /* Find the controller of the command to be aborted */
+ h = sdev_to_hba(sc->device);
+ if (WARN(h == NULL,
+ "ABORT REQUEST FAILED, Controller lookup failed.\n"))
+ return FAILED;
+
+ /* Check that controller supports some kind of task abort */
+ if (!(HPSATMF_PHYS_TASK_ABORT & h->TMFSupportFlags) &&
+ !(HPSATMF_LOG_TASK_ABORT & h->TMFSupportFlags))
+ return FAILED;
+
+ memset(msg, 0, sizeof(msg));
+ ml += sprintf(msg+ml, "ABORT REQUEST on C%d:B%d:T%d:L%d ",
+ h->scsi_host->host_no, sc->device->channel,
+ sc->device->id, sc->device->lun);
+
+ /* Find the device of the command to be aborted */
+ dev = sc->device->hostdata;
+ if (!dev) {
+ dev_err(&h->pdev->dev, "%s FAILED, Device lookup failed.\n",
+ msg);
+ return FAILED;
+ }
+
+ /* Get SCSI command to be aborted */
+ abort = (struct CommandList *) sc->host_scribble;
+ if (abort == NULL) {
+ dev_err(&h->pdev->dev, "%s FAILED, Command to abort is NULL.\n",
+ msg);
+ return FAILED;
+ }
+
+ ml += sprintf(msg+ml, "Tag:0x%08x:%08x ",
+ abort->Header.Tag.upper, abort->Header.Tag.lower);
+ as = (struct scsi_cmnd *) abort->scsi_cmd;
+ if (as != NULL)
+ ml += sprintf(msg+ml, "Command:0x%x SN:0x%lx ",
+ as->cmnd[0], as->serial_number);
+ dev_dbg(&h->pdev->dev, "%s\n", msg);
+ dev_warn(&h->pdev->dev, "Abort request on C%d:B%d:T%d:L%d\n",
+ h->scsi_host->host_no, dev->bus, dev->target, dev->lun);
+
+ /* Search reqQ to See if command is queued but not submitted,
+ * if so, complete the command with aborted status and remove
+ * it from the reqQ.
+ */
+ found = hpsa_find_cmd_in_queue(h, sc, &h->reqQ);
+ if (found) {
+ found->err_info->CommandStatus = CMD_ABORTED;
+ finish_cmd(found);
+ dev_info(&h->pdev->dev, "%s Request SUCCEEDED (driver queue).\n",
+ msg);
+ return SUCCESS;
+ }
+
+ /* not in reqQ, if also not in cmpQ, must have already completed */
+ found = hpsa_find_cmd_in_queue(h, sc, &h->cmpQ);
+ if (!found) {
+ dev_dbg(&h->pdev->dev, "%s Request FAILED (not known to driver).\n",
+ msg);
+ return SUCCESS;
+ }
+
+ /*
+ * Command is in flight, or possibly already completed
+ * by the firmware (but not to the scsi mid layer) but we can't
+ * distinguish which. Send the abort down.
+ */
+ rc = hpsa_send_abort(h, dev->scsi3addr, abort);
+ if (rc != 0) {
+ dev_dbg(&h->pdev->dev, "%s Request FAILED.\n", msg);
+ dev_warn(&h->pdev->dev, "FAILED abort on device C%d:B%d:T%d:L%d\n",
+ h->scsi_host->host_no,
+ dev->bus, dev->target, dev->lun);
+ return FAILED;
+ }
+ dev_info(&h->pdev->dev, "%s REQUEST SUCCEEDED.\n", msg);
+
+ /* If the abort(s) above completed and actually aborted the
+ * command, then the command to be aborted should already be
+ * completed. If not, wait around a bit more to see if they
+ * manage to complete normally.
+ */
+#define ABORT_COMPLETE_WAIT_SECS 30
+ for (i = 0; i < ABORT_COMPLETE_WAIT_SECS * 10; i++) {
+ found = hpsa_find_cmd_in_queue(h, sc, &h->cmpQ);
+ if (!found)
+ return SUCCESS;
+ msleep(100);
+ }
+ dev_warn(&h->pdev->dev, "%s FAILED. Aborted command has not completed after %d seconds.\n",
+ msg, ABORT_COMPLETE_WAIT_SECS);
+ return FAILED;
+}
+
+
/*
* For operations that cannot sleep, a command block is allocated at init,
* and managed by cmd_alloc() and cmd_free() using a simple bitmap to track
int cmd_type)
{
int pci_dir = XFER_NONE;
+ struct CommandList *a; /* for commands to be aborted */
c->cmd_type = CMD_IOCTL_PEND;
c->Header.ReplyQueue = 0;
c->Request.CDB[5] = 0x00;
c->Request.CDB[6] = 0x00;
c->Request.CDB[7] = 0x00;
+ break;
+ case HPSA_ABORT_MSG:
+ a = buff; /* point to command to be aborted */
+ dev_dbg(&h->pdev->dev, "Abort Tag:0x%08x:%08x using request Tag:0x%08x:%08x\n",
+ a->Header.Tag.upper, a->Header.Tag.lower,
+ c->Header.Tag.upper, c->Header.Tag.lower);
+ c->Request.CDBLen = 16;
+ c->Request.Type.Type = TYPE_MSG;
+ c->Request.Type.Attribute = ATTR_SIMPLE;
+ c->Request.Type.Direction = XFER_WRITE;
+ c->Request.Timeout = 0; /* Don't time out */
+ c->Request.CDB[0] = HPSA_TASK_MANAGEMENT;
+ c->Request.CDB[1] = HPSA_TMF_ABORT_TASK;
+ c->Request.CDB[2] = 0x00; /* reserved */
+ c->Request.CDB[3] = 0x00; /* reserved */
+ /* Tag to abort goes in CDB[4]-CDB[11] */
+ c->Request.CDB[4] = a->Header.Tag.lower & 0xFF;
+ c->Request.CDB[5] = (a->Header.Tag.lower >> 8) & 0xFF;
+ c->Request.CDB[6] = (a->Header.Tag.lower >> 16) & 0xFF;
+ c->Request.CDB[7] = (a->Header.Tag.lower >> 24) & 0xFF;
+ c->Request.CDB[8] = a->Header.Tag.upper & 0xFF;
+ c->Request.CDB[9] = (a->Header.Tag.upper >> 8) & 0xFF;
+ c->Request.CDB[10] = (a->Header.Tag.upper >> 16) & 0xFF;
+ c->Request.CDB[11] = (a->Header.Tag.upper >> 24) & 0xFF;
+ c->Request.CDB[12] = 0x00; /* reserved */
+ c->Request.CDB[13] = 0x00; /* reserved */
+ c->Request.CDB[14] = 0x00; /* reserved */
+ c->Request.CDB[15] = 0x00; /* reserved */
break;
-
default:
dev_warn(&h->pdev->dev, "unknown message type %d\n",
cmd);
h->maxsgentries = 31; /* default to traditional values */
h->chainsize = 0;
}
+
+ /* Find out what task management functions are supported and cache */
+ h->TMFSupportFlags = readl(&(h->cfgtable->TMFSupportFlags));
}
static inline bool hpsa_CISS_signature_present(struct ctlr_info *h)
projects / karo-tx-linux.git / commitdiff