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| author | Hannes Reinecke <hare@kernel.org> | 2024-05-27 07:15:23 +0200 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2024-06-24 21:53:43 +0200 |
| commit | 99032e9dbabcfc64bf71e94a1b662c4bfe534ed1 (patch) | |
| tree | 58ceb9833c2c422ac9e05a9a026f1a1bfd05a919 /drivers/nvme | |
| parent | nvmet-rdma: implement host_traddr() (diff) | |
| download | linux-99032e9dbabcfc64bf71e94a1b662c4bfe534ed1.tar.xz linux-99032e9dbabcfc64bf71e94a1b662c4bfe534ed1.zip | |
nvmet-fc: implement host_traddr()
Implement callback to display the host transport address by
adding a callback 'host_traddr' for nvmet_fc_target_template.
Signed-off-by: Hannes Reinecke <hare@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Daniel Wagner <dwagner@suse.de>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme')
| -rw-r--r-- | drivers/nvme/target/fc.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/nvme/target/fc.c b/drivers/nvme/target/fc.c index 337ee1cb09ae..a8fb89da7281 100644 --- a/drivers/nvme/target/fc.c +++ b/drivers/nvme/target/fc.c @@ -2934,6 +2934,38 @@ nvmet_fc_discovery_chg(struct nvmet_port *port) tgtport->ops->discovery_event(&tgtport->fc_target_port); } +static ssize_t +nvmet_fc_host_traddr(struct nvmet_ctrl *ctrl, + char *traddr, size_t traddr_size) +{ + struct nvmet_sq *sq = ctrl->sqs[0]; + struct nvmet_fc_tgt_queue *queue = + container_of(sq, struct nvmet_fc_tgt_queue, nvme_sq); + struct nvmet_fc_tgtport *tgtport = queue->assoc ? queue->assoc->tgtport : NULL; + struct nvmet_fc_hostport *hostport = queue->assoc ? queue->assoc->hostport : NULL; + u64 wwnn, wwpn; + ssize_t ret = 0; + + if (!tgtport || !nvmet_fc_tgtport_get(tgtport)) + return -ENODEV; + if (!hostport || !nvmet_fc_hostport_get(hostport)) { + ret = -ENODEV; + goto out_put; + } + + if (tgtport->ops->host_traddr) { + ret = tgtport->ops->host_traddr(hostport->hosthandle, &wwnn, &wwpn); + if (ret) + goto out_put_host; + ret = snprintf(traddr, traddr_size, "nn-0x%llx:pn-0x%llx", wwnn, wwpn); + } +out_put_host: + nvmet_fc_hostport_put(hostport); +out_put: + nvmet_fc_tgtport_put(tgtport); + return ret; +} + static const struct nvmet_fabrics_ops nvmet_fc_tgt_fcp_ops = { .owner = THIS_MODULE, .type = NVMF_TRTYPE_FC, @@ -2943,6 +2975,7 @@ static const struct nvmet_fabrics_ops nvmet_fc_tgt_fcp_ops = { .queue_response = nvmet_fc_fcp_nvme_cmd_done, .delete_ctrl = nvmet_fc_delete_ctrl, .discovery_chg = nvmet_fc_discovery_chg, + .host_traddr = nvmet_fc_host_traddr, }; static int __init nvmet_fc_init_module(void) |