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Commit bb59b8e5 authored by Sagi Grimberg's avatar Sagi Grimberg Committed by Christoph Hellwig
Browse files

nvme-rdma: always have a valid trsvcid 



If not passed, we set the default trsvcid. We can rely on having trsvcid
and can simplify the controller matching logic.

Signed-off-by: default avatarSagi Grimberg <sagi@grimberg.me>
Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
parent 3045c0d0

drivers/nvme/host/rdma.c

+14 −24
Original line number Diff line number Diff line
@@ -1860,25 +1860,10 @@ static inline bool 
__nvme_rdma_options_match(struct nvme_rdma_ctrl *ctrl,

	struct nvmf_ctrl_options *opts)

{

	char *stdport = __stringify(NVME_RDMA_IP_PORT);





	if (!nvmf_ctlr_matches_baseopts(&ctrl->ctrl, opts) ||

	    strcmp(opts->traddr, ctrl->ctrl.opts->traddr))

		return false;



	if (opts->mask & NVMF_OPT_TRSVCID &&

	    ctrl->ctrl.opts->mask & NVMF_OPT_TRSVCID) {

		if (strcmp(opts->trsvcid, ctrl->ctrl.opts->trsvcid))

			return false;

	} else if (opts->mask & NVMF_OPT_TRSVCID) {

		if (strcmp(opts->trsvcid, stdport))

			return false;

	} else if (ctrl->ctrl.opts->mask & NVMF_OPT_TRSVCID) {

		if (strcmp(stdport, ctrl->ctrl.opts->trsvcid))

	    strcmp(opts->traddr, ctrl->ctrl.opts->traddr) ||

	    strcmp(opts->trsvcid, ctrl->ctrl.opts->trsvcid))

		return false;

	}

	/* else, it's a match as both have stdport. Fall to next checks */



	/*

	 * checking the local address is rough. In most cases, one
@@ -1939,7 +1924,6 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev, 
	struct nvme_rdma_ctrl *ctrl;

	int ret;

	bool changed;

	char *port;



	ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL);

	if (!ctrl)
@@ -1947,15 +1931,21 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev, 
	ctrl->ctrl.opts = opts;

	INIT_LIST_HEAD(&ctrl->list);



	if (opts->mask & NVMF_OPT_TRSVCID)

		port = opts->trsvcid;

	else

		port = __stringify(NVME_RDMA_IP_PORT);

	if (!(opts->mask & NVMF_OPT_TRSVCID)) {

		opts->trsvcid =

			kstrdup(__stringify(NVME_RDMA_IP_PORT), GFP_KERNEL);

		if (!opts->trsvcid) {

			ret = -ENOMEM;

			goto out_free_ctrl;

		}

		opts->mask |= NVMF_OPT_TRSVCID;

	}



	ret = inet_pton_with_scope(&init_net, AF_UNSPEC,

			opts->traddr, port, &ctrl->addr);

			opts->traddr, opts->trsvcid, &ctrl->addr);

	if (ret) {

		pr_err("malformed address passed: %s:%s\n", opts->traddr, port);

		pr_err("malformed address passed: %s:%s\n",

			opts->traddr, opts->trsvcid);

		goto out_free_ctrl;

	}