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-rw-r--r--drivers/scsi/hpsa.c44
-rw-r--r--drivers/scsi/hpsa.h4
2 files changed, 40 insertions, 8 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index b345cc47694..cfd30adc3f1 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -173,6 +173,10 @@ static int __devinit hpsa_find_cfg_addrs(struct pci_dev *pdev,
static int __devinit hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
unsigned long *memory_bar);
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);
+#define BOARD_NOT_READY 0
+#define BOARD_READY 1
static DEVICE_ATTR(raid_level, S_IRUGO, raid_level_show, NULL);
static DEVICE_ATTR(lunid, S_IRUGO, lunid_show, NULL);
@@ -3237,6 +3241,20 @@ static __devinit int hpsa_kdump_hard_reset_controller(struct pci_dev *pdev)
need a little pause here */
msleep(HPSA_POST_RESET_PAUSE_MSECS);
+ /* Wait for board to become not ready, then ready. */
+ dev_info(&pdev->dev, "Waiting for board to become ready.\n");
+ rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_NOT_READY);
+ if (rc)
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become not ready\n");
+ rc = hpsa_wait_for_board_state(pdev, vaddr, BOARD_READY);
+ if (rc) {
+ dev_warn(&pdev->dev,
+ "failed waiting for board to become ready\n");
+ goto unmap_cfgtable;
+ }
+ dev_info(&pdev->dev, "board ready.\n");
+
/* Controller should be in simple mode at this point. If it's not,
* It means we're on one of those controllers which doesn't support
* the doorbell reset method and on which the PCI power management reset
@@ -3432,18 +3450,28 @@ static int __devinit hpsa_pci_find_memory_BAR(struct pci_dev *pdev,
return -ENODEV;
}
-static int __devinit hpsa_wait_for_board_ready(struct ctlr_info *h)
+static int __devinit hpsa_wait_for_board_state(struct pci_dev *pdev,
+ void __iomem *vaddr, int wait_for_ready)
{
- int i;
+ int i, iterations;
u32 scratchpad;
+ if (wait_for_ready)
+ iterations = HPSA_BOARD_READY_ITERATIONS;
+ else
+ iterations = HPSA_BOARD_NOT_READY_ITERATIONS;
- for (i = 0; i < HPSA_BOARD_READY_ITERATIONS; i++) {
- scratchpad = readl(h->vaddr + SA5_SCRATCHPAD_OFFSET);
- if (scratchpad == HPSA_FIRMWARE_READY)
- return 0;
+ for (i = 0; i < iterations; i++) {
+ scratchpad = readl(vaddr + SA5_SCRATCHPAD_OFFSET);
+ if (wait_for_ready) {
+ if (scratchpad == HPSA_FIRMWARE_READY)
+ return 0;
+ } else {
+ if (scratchpad != HPSA_FIRMWARE_READY)
+ return 0;
+ }
msleep(HPSA_BOARD_READY_POLL_INTERVAL_MSECS);
}
- dev_warn(&h->pdev->dev, "board not ready, timed out.\n");
+ dev_warn(&pdev->dev, "board not ready, timed out.\n");
return -ENODEV;
}
@@ -3635,7 +3663,7 @@ static int __devinit hpsa_pci_init(struct ctlr_info *h)
err = -ENOMEM;
goto err_out_free_res;
}
- err = hpsa_wait_for_board_ready(h);
+ err = hpsa_wait_for_board_state(h->pdev, h->vaddr, BOARD_READY);
if (err)
goto err_out_free_res;
err = hpsa_find_cfgtables(h);
diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h
index 19586e189f0..074d237f449 100644
--- a/drivers/scsi/hpsa.h
+++ b/drivers/scsi/hpsa.h
@@ -154,12 +154,16 @@ struct ctlr_info {
* HPSA_BOARD_READY_ITERATIONS are derived from those.
*/
#define HPSA_BOARD_READY_WAIT_SECS (120)
+#define HPSA_BOARD_NOT_READY_WAIT_SECS (10)
#define HPSA_BOARD_READY_POLL_INTERVAL_MSECS (100)
#define HPSA_BOARD_READY_POLL_INTERVAL \
((HPSA_BOARD_READY_POLL_INTERVAL_MSECS * HZ) / 1000)
#define HPSA_BOARD_READY_ITERATIONS \
((HPSA_BOARD_READY_WAIT_SECS * 1000) / \
HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
+#define HPSA_BOARD_NOT_READY_ITERATIONS \
+ ((HPSA_BOARD_NOT_READY_WAIT_SECS * 1000) / \
+ HPSA_BOARD_READY_POLL_INTERVAL_MSECS)
#define HPSA_POST_RESET_PAUSE_MSECS (3000)
#define HPSA_POST_RESET_NOOP_RETRIES (12)