From: Christoph Hellwig Date: Wed, 6 Jun 2018 12:39:00 +0000 (+0200) Subject: nvme: simplify the API for getting log pages X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=0e98719b0e4b48b61965e1d1cba037c2005d01d7;p=openwrt%2Fstaging%2Fblogic.git nvme: simplify the API for getting log pages Merge nvme_get_log and nvme_get_log_ext into a single helper, which takes a plain nsid instead of the nvme_ns pointer. Also add support for the log specific field while we're at it. Signed-off-by: Christoph Hellwig Reviewed-by: Keith Busch Reviewed-by: Sagi Grimberg Reviewed-by: Martin K. Petersen Reviewed-by: Hannes Reinecke Reviewed-by: Johannes Thumshirn --- diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index e77e6418a21c..4552167f8b2b 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -2249,21 +2249,16 @@ out_unlock: return ret; } -int nvme_get_log_ext(struct nvme_ctrl *ctrl, struct nvme_ns *ns, - u8 log_page, void *log, - size_t size, u64 offset) +int nvme_get_log(struct nvme_ctrl *ctrl, u32 nsid, u8 log_page, u8 lsp, + void *log, size_t size, u64 offset) { struct nvme_command c = { }; unsigned long dwlen = size / 4 - 1; c.get_log_page.opcode = nvme_admin_get_log_page; - - if (ns) - c.get_log_page.nsid = cpu_to_le32(ns->head->ns_id); - else - c.get_log_page.nsid = cpu_to_le32(NVME_NSID_ALL); - + c.get_log_page.nsid = cpu_to_le32(nsid); c.get_log_page.lid = log_page; + c.get_log_page.lsp = lsp; c.get_log_page.numdl = cpu_to_le16(dwlen & ((1 << 16) - 1)); c.get_log_page.numdu = cpu_to_le16(dwlen >> 16); c.get_log_page.lpol = cpu_to_le32(lower_32_bits(offset)); @@ -2272,12 +2267,6 @@ int nvme_get_log_ext(struct nvme_ctrl *ctrl, struct nvme_ns *ns, return nvme_submit_sync_cmd(ctrl->admin_q, &c, log, size); } -static int nvme_get_log(struct nvme_ctrl *ctrl, u8 log_page, void *log, - size_t size) -{ - return nvme_get_log_ext(ctrl, NULL, log_page, log, size, 0); -} - static int nvme_get_effects_log(struct nvme_ctrl *ctrl) { int ret; @@ -2288,8 +2277,8 @@ static int nvme_get_effects_log(struct nvme_ctrl *ctrl) if (!ctrl->effects) return 0; - ret = nvme_get_log(ctrl, NVME_LOG_CMD_EFFECTS, ctrl->effects, - sizeof(*ctrl->effects)); + ret = nvme_get_log(ctrl, NVME_NSID_ALL, NVME_LOG_CMD_EFFECTS, 0, + ctrl->effects, sizeof(*ctrl->effects), 0); if (ret) { kfree(ctrl->effects); ctrl->effects = NULL; @@ -3208,7 +3197,8 @@ static void nvme_clear_changed_ns_log(struct nvme_ctrl *ctrl) * raced with us in reading the log page, which could cause us to miss * updates. */ - error = nvme_get_log(ctrl, NVME_LOG_CHANGED_NS, log, log_size); + error = nvme_get_log(ctrl, NVME_NSID_ALL, NVME_LOG_CHANGED_NS, 0, log, + log_size, 0); if (error) dev_warn(ctrl->device, "reading changed ns log failed: %d\n", error); @@ -3325,9 +3315,9 @@ static void nvme_get_fw_slot_info(struct nvme_ctrl *ctrl) if (!log) return; - if (nvme_get_log(ctrl, NVME_LOG_FW_SLOT, log, sizeof(*log))) - dev_warn(ctrl->device, - "Get FW SLOT INFO log error\n"); + if (nvme_get_log(ctrl, NVME_NSID_ALL, 0, NVME_LOG_FW_SLOT, log, + sizeof(*log), 0)) + dev_warn(ctrl->device, "Get FW SLOT INFO log error\n"); kfree(log); } diff --git a/drivers/nvme/host/lightnvm.c b/drivers/nvme/host/lightnvm.c index d9e4cccd5b66..7e4cf4eb9d66 100644 --- a/drivers/nvme/host/lightnvm.c +++ b/drivers/nvme/host/lightnvm.c @@ -604,8 +604,9 @@ static int nvme_nvm_get_chk_meta(struct nvm_dev *ndev, while (left) { len = min_t(unsigned int, left, max_len); - ret = nvme_get_log_ext(ctrl, ns, NVME_NVM_LOG_REPORT_CHUNK, - dev_meta, len, offset); + ret = nvme_get_log(ctrl, ns->head->ns_id, + NVME_NVM_LOG_REPORT_CHUNK, 0, dev_meta, len, + offset); if (ret) { dev_err(ctrl->device, "Get REPORT CHUNK log error\n"); break; diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 4ad0c8ad2a27..f463eaf56db5 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -443,8 +443,8 @@ int nvme_reset_ctrl_sync(struct nvme_ctrl *ctrl); int nvme_delete_ctrl(struct nvme_ctrl *ctrl); int nvme_delete_ctrl_sync(struct nvme_ctrl *ctrl); -int nvme_get_log_ext(struct nvme_ctrl *ctrl, struct nvme_ns *ns, - u8 log_page, void *log, size_t size, u64 offset); +int nvme_get_log(struct nvme_ctrl *ctrl, u32 nsid, u8 log_page, u8 lsp, + void *log, size_t size, u64 offset); extern const struct attribute_group nvme_ns_id_attr_group; extern const struct block_device_operations nvme_ns_head_ops;