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nvme-fabrics: move controller options matching to fabrics

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IP transports will most likely use the same controller options
matching when detecting a duplicate connect. Move it to
fabrics.

Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg
2018-10-18 17:40:40 -07:00
committed by Christoph Hellwig
parent bb59b8e574
commit b7c7be6f6b
3 changed files with 33 additions and 34 deletions
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30
drivers/nvme/host/fabrics.c
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@@ -868,6 +868,36 @@ static int nvmf_check_required_opts(struct nvmf_ctrl_options *opts,
return 0;
}
bool nvmf_ip_options_match(struct nvme_ctrl *ctrl,
struct nvmf_ctrl_options *opts)
{
if (!nvmf_ctlr_matches_baseopts(ctrl, opts) ||
strcmp(opts->traddr, ctrl->opts->traddr) ||
strcmp(opts->trsvcid, ctrl->opts->trsvcid))
return false;
/*
* Checking the local address is rough. In most cases, none is specified
* and the host port is selected by the stack.
*
* Assume no match if:
* - local address is specified and address is not the same
* - local address is not specified but remote is, or vice versa
* (admin using specific host_traddr when it matters).
*/
if ((opts->mask & NVMF_OPT_HOST_TRADDR) &&
(ctrl->opts->mask & NVMF_OPT_HOST_TRADDR)) {
if (strcmp(opts->host_traddr, ctrl->opts->host_traddr))
return false;
} else if ((opts->mask & NVMF_OPT_HOST_TRADDR) ||
(ctrl->opts->mask & NVMF_OPT_HOST_TRADDR)) {
return false;
}
return true;
}
EXPORT_SYMBOL_GPL(nvmf_ip_options_match);
static int nvmf_check_allowed_opts(struct nvmf_ctrl_options *opts,
unsigned int allowed_opts)
{