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scsi: qedf: Retry qed->probe during recovery 

During recovery due to FCoE fn ramrod failure we wait for 2 sec and then
call qed->probe. If probe fails then retry max 10 times.

Link: https://lore.kernel.org/r/20200907121443.5150-8-jhasan@marvell.com
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Javed Hasan <jhasan@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Saurav Kashyap 2020-09-07 05:14:42 -07:00 committed by Martin K. Petersen
parent 55e049910e
commit 988100a7de
1 changed files with 11 additions and 0 deletions
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11
drivers/scsi/qedf/qedf_main.c
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@ -3267,11 +3267,16 @@ 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));
@ -3358,6 +3363,12 @@ 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;