From 2953b30b1d9feb1bc555682e64e6479d197b9231 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Mon, 18 Oct 2021 17:21:38 +0200 Subject: nvmet: register discovery subsystem as 'current' Register the discovery subsystem as the 'current' discovery subsystem, and add a new discovery log page entry for it. Signed-off-by: Hannes Reinecke Signed-off-by: Christoph Hellwig --- drivers/nvme/target/core.c | 1 + drivers/nvme/target/discovery.c | 17 +++++++++++------ 2 files changed, 12 insertions(+), 6 deletions(-) diff --git a/drivers/nvme/target/core.c b/drivers/nvme/target/core.c index d844fb9ef2eb..5119c687de68 100644 --- a/drivers/nvme/target/core.c +++ b/drivers/nvme/target/core.c @@ -1541,6 +1541,7 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn, subsys->max_qid = NVMET_NR_QUEUES; break; case NVME_NQN_DISC: + case NVME_NQN_CURR: subsys->max_qid = 0; break; default: diff --git a/drivers/nvme/target/discovery.c b/drivers/nvme/target/discovery.c index 7b360f8d07e9..c2162eef8ce1 100644 --- a/drivers/nvme/target/discovery.c +++ b/drivers/nvme/target/discovery.c @@ -146,7 +146,7 @@ static size_t discovery_log_entries(struct nvmet_req *req) struct nvmet_ctrl *ctrl = req->sq->ctrl; struct nvmet_subsys_link *p; struct nvmet_port *r; - size_t entries = 0; + size_t entries = 1; list_for_each_entry(p, &req->port->subsystems, entry) { if (!nvmet_host_allowed(p->subsys, ctrl->hostnqn)) @@ -171,6 +171,7 @@ static void nvmet_execute_disc_get_log_page(struct nvmet_req *req) u32 numrec = 0; u16 status = 0; void *buffer; + char traddr[NVMF_TRADDR_SIZE]; if (!nvmet_check_transfer_len(req, data_len)) return; @@ -203,15 +204,19 @@ static void nvmet_execute_disc_get_log_page(struct nvmet_req *req) status = NVME_SC_INTERNAL; goto out; } - hdr = buffer; - list_for_each_entry(p, &req->port->subsystems, entry) { - char traddr[NVMF_TRADDR_SIZE]; + nvmet_set_disc_traddr(req, req->port, traddr); + + nvmet_format_discovery_entry(hdr, req->port, + nvmet_disc_subsys->subsysnqn, + traddr, NVME_NQN_CURR, numrec); + numrec++; + + list_for_each_entry(p, &req->port->subsystems, entry) { if (!nvmet_host_allowed(p->subsys, ctrl->hostnqn)) continue; - nvmet_set_disc_traddr(req, req->port, traddr); nvmet_format_discovery_entry(hdr, req->port, p->subsys->subsysnqn, traddr, NVME_NQN_NVME, numrec); @@ -389,7 +394,7 @@ u16 nvmet_parse_discovery_cmd(struct nvmet_req *req) int __init nvmet_init_discovery(void) { nvmet_disc_subsys = - nvmet_subsys_alloc(NVME_DISC_SUBSYS_NAME, NVME_NQN_DISC); + nvmet_subsys_alloc(NVME_DISC_SUBSYS_NAME, NVME_NQN_CURR); return PTR_ERR_OR_ZERO(nvmet_disc_subsys); } -- cgit v1.2.3