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scsi: qla2xxx: Delay I/O Abort on PCI error

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commit 591c1fdf20 upstream.

Currently when PCI error is detected, I/O is aborted manually through the
ABORT IOCB mechanism which is not guaranteed to succeed.

Instead, wait for the OS or system to notify driver to wind down I/O
through the pci_error_handlers api.  Set eeh_busy flag to pause all traffic
and wait for I/O to drain.

Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20240227164127.36465-11-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Quinn Tran 2024-02-27 22:11:26 +05:30 committed by Greg Kroah-Hartman
parent 29520a334f
commit a492d6dad9
1 changed files with 12 additions and 2 deletions
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14
drivers/scsi/qla2xxx/qla_attr.c
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@ -2741,7 +2741,13 @@ qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
return;
if (unlikely(pci_channel_offline(fcport->vha->hw->pdev))) {
qla2x00_abort_all_cmds(fcport->vha, DID_NO_CONNECT << 16);
/* Will wait for wind down of adapter */
ql_dbg(ql_dbg_aer, fcport->vha, 0x900c,
"%s pci offline detected (id %06x)\n", __func__,
fcport->d_id.b24);
qla_pci_set_eeh_busy(fcport->vha);
qla2x00_eh_wait_for_pending_commands(fcport->vha, fcport->d_id.b24,
0, WAIT_TARGET);
return;
}
}
@ -2763,7 +2769,11 @@ qla2x00_terminate_rport_io(struct fc_rport *rport)
vha = fcport->vha;
if (unlikely(pci_channel_offline(fcport->vha->hw->pdev))) {
qla2x00_abort_all_cmds(fcport->vha, DID_NO_CONNECT << 16);
/* Will wait for wind down of adapter */
ql_dbg(ql_dbg_aer, fcport->vha, 0x900b,
"%s pci offline detected (id %06x)\n", __func__,
fcport->d_id.b24);
qla_pci_set_eeh_busy(vha);
qla2x00_eh_wait_for_pending_commands(fcport->vha, fcport->d_id.b24,
0, WAIT_TARGET);
return;