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authorDaniel Wagner <dwagner@suse.de>2023-02-21 17:51:06 +0100
committerChristoph Hellwig <hch@lst.de>2023-02-28 14:14:44 +0100
commit26a57cb35548ae67c14871cccbf50da3edb01ea4 (patch)
tree46eb6a61c4881c02d7f479d4c8eeb12d2692bcb1 /drivers/nvme/host/fabrics.h
parentnvme-tcp: don't access released socket during error recovery (diff)
downloadlinux-26a57cb35548ae67c14871cccbf50da3edb01ea4.tar.xz
linux-26a57cb35548ae67c14871cccbf50da3edb01ea4.zip
nvme-fabrics: show well known discovery name
The kernel always logs the unique subsystem name for a discovery controller, even in the case user space asked for the well known. This has lead to confusion as the logs of nvme-cli and the kernel logs didn't match. First, nvme-cli connects to the well known discovery controller to figure out if it supports TP8013. If so then nvme-cli disconnects and connects to the unique discovery controller. Currently, the kernel show that user space connected twice to the unique one. To avoid further confusion, show the well known discovery controller if user space asked for it: $ nvme connect-all -v -t tcp -a 192.168.0.1 nvme0: nqn.2014-08.org.nvmexpress.discovery connected nvme0: nqn.2014-08.org.nvmexpress.discovery disconnected nvme0: nqn.discovery connected kernel log: nvme nvme0: new ctrl: NQN "nqn.2014-08.org.nvmexpress.discovery", addr 192.168.0.1:8009 nvme nvme0: Removing ctrl: NQN "nqn.2014-08.org.nvmexpress.discovery" nvme nvme0: new ctrl: NQN "nqn.discovery", addr 192.168.0.1:8009 Fixes: e5ea42faa773 ("nvme: display correct subsystem NQN") Signed-off-by: Daniel Wagner <dwagner@suse.de> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Christoph Hellwig <hch@lst.de>
Diffstat (limited to 'drivers/nvme/host/fabrics.h')
-rw-r--r--drivers/nvme/host/fabrics.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/nvme/host/fabrics.h b/drivers/nvme/host/fabrics.h
index a6e22116e139..dcac3df8a5f7 100644
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -189,7 +189,8 @@ nvmf_ctlr_matches_baseopts(struct nvme_ctrl *ctrl,
static inline char *nvmf_ctrl_subsysnqn(struct nvme_ctrl *ctrl)
{
- if (!ctrl->subsys)
+ if (!ctrl->subsys ||
+ !strcmp(ctrl->opts->subsysnqn, NVME_DISC_SUBSYS_NAME))
return ctrl->opts->subsysnqn;
return ctrl->subsys->subnqn;
}