diff mbox series

[7/8] qedf: Retry qed->probe during recovery.

Message ID 20200825064354.16361-8-jhasan@marvell.com
State New
Headers show
Series [1/8] qedf: Changed the debug parameter permission from read to read & write. | expand

Commit Message

Javed Hasan Aug. 25, 2020, 6:43 a.m. UTC 
From: Saurav Kashyap <skashyap@marvell.com>

During recovery due to fcoe fn ramrod failure, we
wait for 2 sec and then call qed->probe, if probe
fails then re-try max 10 times.

Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
---
 drivers/scsi/qedf/qedf_main.c | 11 +++++++++++
 1 file changed, 11 insertions(+)
diff mbox series

Patch

diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c
index 3a45ca7..091cf86 100644
--- a/drivers/scsi/qedf/qedf_main.c
+++ b/drivers/scsi/qedf/qedf_main.c
@@ -3245,11 +3245,16 @@  static int __qedf_probe(struct pci_dev *pdev, int mode)
 	void *task_start, *task_end;
 	struct qed_slowpath_params slowpath_params;
 	struct qed_probe_params qed_params;
+	u16 retry_cnt = 10;
 
 	/*
 	 * When doing error recovery we didn't reap the lport so don't try
 	 * to reallocate it.
 	 */
+retry_probe:
+	if (mode == QEDF_MODE_RECOVERY)
+		msleep(2000);
+
 	if (mode != QEDF_MODE_RECOVERY) {
 		lport = libfc_host_alloc(&qedf_host_template,
 		    sizeof(struct qedf_ctx));
@@ -3336,6 +3341,12 @@  static int __qedf_probe(struct pci_dev *pdev, int mode)
 	qed_params.is_vf = is_vf;
 	qedf->cdev = qed_ops->common->probe(pdev, &qed_params);
 	if (!qedf->cdev) {
+		if ((mode == QEDF_MODE_RECOVERY) && retry_cnt) {
+			QEDF_ERR(&qedf->dbg_ctx,
+				"Retry %d initialize hardware\n", retry_cnt);
+			retry_cnt--;
+			goto retry_probe;
+		}
 		QEDF_ERR(&qedf->dbg_ctx, "common probe failed.\n");
 		rc = -ENODEV;
 		goto err1;