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nvme-fabrics: allow duplicate connections to the discovery controller

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The whole point of the discovery controller is that it can accept
multiple connections. Additionally the cmic field is not even defined for
the discovery controller identify page.

Signed-off-by: Hannes Reinecke <hare@suse.com>
Reviewed-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Hannes Reinecke 2018-05-24 16:18:17 +02:00 committed by Christoph Hellwig
parent 461fbc8f0e
commit 181303d035
2 changed files with 3 additions and 1 deletions
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3
drivers/nvme/host/core.c
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@ -2184,7 +2184,8 @@ static int nvme_init_subsystem(struct nvme_ctrl *ctrl, struct nvme_id_ctrl *id)
* Verify that the subsystem actually supports multiple
* controllers, else bail out.
*/
if (nvme_active_ctrls(found) && !(id->cmic & (1 << 1))) {
if (!ctrl->opts->discovery_nqn &&
nvme_active_ctrls(found) && !(id->cmic & (1 << 1))) {
dev_err(ctrl->device,
"ignoring ctrl due to duplicate subnqn (%s).\n",
found->subnqn);

1
drivers/nvme/host/fabrics.c
View file

@ -850,6 +850,7 @@ static int nvmf_parse_options(struct nvmf_ctrl_options *opts,
if (opts->discovery_nqn) {
opts->kato = 0;
opts->nr_io_queues = 0;
opts->duplicate_connect = true;
}
if (ctrl_loss_tmo < 0)
opts->max_reconnects = -1;