From: James Smart <jsmart2021@gmail.com>
Date: Fri, 20 Oct 2017 16:17:07 -0700
Subject: nvme: add helper to compare options to controller
Patch-mainline: v4.15-rc1
Git-commit: 991231dc48ae9bcdd363ee231f10beb771d455c1
References: FATE#323952, FATE#322506
Adds a helper function that compares the host and subsytem
specified in a connect options list vs a controller.
Signed-off-by: James Smart <james.smart@broadcom.com>
Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
drivers/nvme/host/fabrics.h | 12 ++++++++++++
1 file changed, 12 insertions(+)
--- a/drivers/nvme/host/fabrics.h
+++ b/drivers/nvme/host/fabrics.h
@@ -133,6 +133,18 @@ struct nvmf_transport_ops {
struct nvmf_ctrl_options *opts);
};
+static inline bool
+nvmf_ctlr_matches_baseopts(struct nvme_ctrl *ctrl,
+ struct nvmf_ctrl_options *opts)
+{
+ if (strcmp(opts->subsysnqn, ctrl->opts->subsysnqn) ||
+ strcmp(opts->host->nqn, ctrl->opts->host->nqn) ||
+ memcmp(&opts->host->id, &ctrl->opts->host->id, sizeof(uuid_t)))
+ return false;
+
+ return true;
+}
+
int nvmf_reg_read32(struct nvme_ctrl *ctrl, u32 off, u32 *val);
int nvmf_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val);
int nvmf_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val);