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authorJames Smart <jsmart2021@gmail.com>2019-05-14 14:58:06 -0700
committerChristoph Hellwig <hch@lst.de>2019-06-21 11:08:37 +0200
commitab723121a8eade04ecc6bd7116924c359336f4eb (patch)
treefdc4539b32e660f28a22c6b0bcbf81175df7bea7 /drivers/scsi/lpfc/lpfc_nvmet.c
parentf60cb93bbfecf1ad13713af285c3793e861fc9b2 (diff)
downloadlwn-ab723121a8eade04ecc6bd7116924c359336f4eb.tar.gz
lwn-ab723121a8eade04ecc6bd7116924c359336f4eb.zip
lpfc: add nvmet discovery_event op support
This patch adds support for the nvmet discovery op. When the callback routine is called, the driver will call the routine to generate an RSCN to the port on the other end of the link. Signed-off-by: Dick Kennedy <dick.kennedy@broadcom.com> Signed-off-by: James Smart <jsmart2021@gmail.com> Reviewed-by: Hannes Reinecke <hare@suse.com> Reviewed-by: Arun Easi <aeasi@marvell.com> Signed-off-by: Sagi Grimberg <sagi@grimberg.me> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_nvmet.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_nvmet.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_nvmet.c b/drivers/scsi/lpfc/lpfc_nvmet.c
index d74bfd264495..06170824a69b 100644
--- a/drivers/scsi/lpfc/lpfc_nvmet.c
+++ b/drivers/scsi/lpfc/lpfc_nvmet.c
@@ -1139,6 +1139,22 @@ lpfc_nvmet_defer_rcv(struct nvmet_fc_target_port *tgtport,
spin_unlock_irqrestore(&ctxp->ctxlock, iflag);
}
+static void
+lpfc_nvmet_discovery_event(struct nvmet_fc_target_port *tgtport)
+{
+ struct lpfc_nvmet_tgtport *tgtp;
+ struct lpfc_hba *phba;
+ uint32_t rc;
+
+ tgtp = tgtport->private;
+ phba = tgtp->phba;
+
+ rc = lpfc_issue_els_rscn(phba->pport, 0);
+ lpfc_printf_log(phba, KERN_ERR, LOG_NVME,
+ "6420 NVMET subsystem change: Notification %s\n",
+ (rc) ? "Failed" : "Sent");
+}
+
static struct nvmet_fc_target_template lpfc_tgttemplate = {
.targetport_delete = lpfc_nvmet_targetport_delete,
.xmt_ls_rsp = lpfc_nvmet_xmt_ls_rsp,
@@ -1146,6 +1162,7 @@ static struct nvmet_fc_target_template lpfc_tgttemplate = {
.fcp_abort = lpfc_nvmet_xmt_fcp_abort,
.fcp_req_release = lpfc_nvmet_xmt_fcp_release,
.defer_rcv = lpfc_nvmet_defer_rcv,
+ .discovery_event = lpfc_nvmet_discovery_event,
.max_hw_queues = 1,
.max_sgl_segments = LPFC_NVMET_DEFAULT_SEGS,