diff options
| author | Christoph Hellwig <hch@lst.de> | 2024-03-04 17:04:55 +0300 |
|---|---|---|
| committer | Keith Busch <kbusch@kernel.org> | 2024-03-04 19:24:56 +0300 |
| commit | c6fce9f12764c11ab6ff34f4cb0dec06d4d87099 (patch) | |
| tree | 9d04791fa39ae5ea7c45e9d8c534915e23b6e599 /drivers/nvme/host | |
| parent | 46e7422cda8482aa3074c9caf4c224cf2fb74d71 (diff) | |
| download | linux-c6fce9f12764c11ab6ff34f4cb0dec06d4d87099.tar.xz | |
nvme: split out a nvme_identify_ns_nvm helper
Split the logic to query the Identify Namespace Data Structure, NVM
Command Set into a separate helper.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Max Gurtovoy <mgurtovoy@nvidia.com>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Diffstat (limited to 'drivers/nvme/host')
| -rw-r--r-- | drivers/nvme/host/core.c | 38 |
1 files changed, 26 insertions, 12 deletions
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c index f0686a872d0e..9abcc389f0f3 100644 --- a/drivers/nvme/host/core.c +++ b/drivers/nvme/host/core.c @@ -1831,12 +1831,35 @@ static bool nvme_ns_ids_equal(struct nvme_ns_ids *a, struct nvme_ns_ids *b) a->csi == b->csi; } +static int nvme_identify_ns_nvm(struct nvme_ctrl *ctrl, unsigned int nsid, + struct nvme_id_ns_nvm **nvmp) +{ + struct nvme_command c = { + .identify.opcode = nvme_admin_identify, + .identify.nsid = cpu_to_le32(nsid), + .identify.cns = NVME_ID_CNS_CS_NS, + .identify.csi = NVME_CSI_NVM, + }; + struct nvme_id_ns_nvm *nvm; + int ret; + + nvm = kzalloc(sizeof(*nvm), GFP_KERNEL); + if (!nvm) + return -ENOMEM; + + ret = nvme_submit_sync_cmd(ctrl->admin_q, &c, nvm, sizeof(*nvm)); + if (ret) + kfree(nvm); + else + *nvmp = nvm; + return ret; +} + static int nvme_init_ms(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, struct nvme_id_ns *id) { bool first = id->dps & NVME_NS_DPS_PI_FIRST; unsigned lbaf = nvme_lbaf_index(id->flbas); - struct nvme_command c = { }; struct nvme_id_ns_nvm *nvm; int ret = 0; u32 elbaf; @@ -1849,18 +1872,9 @@ static int nvme_init_ms(struct nvme_ctrl *ctrl, struct nvme_ns_head *head, goto set_pi; } - nvm = kzalloc(sizeof(*nvm), GFP_KERNEL); - if (!nvm) - return -ENOMEM; - - c.identify.opcode = nvme_admin_identify; - c.identify.nsid = cpu_to_le32(head->ns_id); - c.identify.cns = NVME_ID_CNS_CS_NS; - c.identify.csi = NVME_CSI_NVM; - - ret = nvme_submit_sync_cmd(ctrl->admin_q, &c, nvm, sizeof(*nvm)); + ret = nvme_identify_ns_nvm(ctrl, head->ns_id, &nvm); if (ret) - goto free_data; + goto set_pi; elbaf = le32_to_cpu(nvm->elbaf[lbaf]); |