From: Quinn Tran Date: Fri, 26 Jul 2019 16:07:39 +0000 (-0700) Subject: scsi: qla2xxx: Allow NVMe IO to resume with short cable pull X-Git-Tag: v5.4-rc1~89^2~230 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=03cc44bf682af289d6536eb911e928b415bd0e1f;p=linux.git scsi: qla2xxx: Allow NVMe IO to resume with short cable pull Current driver report dev_loss_tmo to 0 for NVMe devices with short cable pull. This causes NVMe controller to be freed along with NVMe namespace. The side affect is IO would stop. By not setting dev_loss_tmo to 0, NVMe namespace would stay until cable is plugged back in. This allows IO to resume afterward. [mkp: commit desc] Signed-off-by: Arun Easi Signed-off-by: Quinn Tran Signed-off-by: Himanshu Madhani Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 963094b3c300..af7919a5acdc 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -653,7 +653,9 @@ void qla_nvme_unregister_remote_port(struct fc_port *fcport) "%s: unregister remoteport on %p %8phN\n", __func__, fcport, fcport->port_name); - nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); + if (test_bit(PFLG_DRIVER_REMOVING, &fcport->vha->pci_flags)) + nvme_fc_set_remoteport_devloss(fcport->nvme_remote_port, 0); + init_completion(&fcport->nvme_del_done); ret = nvme_fc_unregister_remoteport(fcport->nvme_remote_port); if (ret)