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nvme: Add helper to send pr command
Move the code that checks for multipath support and sends the pr command to a new helper so it can be used by the reservation report support added in the next patches. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20230407200551.12660-11-michael.christie@oracle.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com> Reviewed-by: Hannes Reinecke <hare@suse.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
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b668f2f546
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1 changed files with 14 additions and 9 deletions
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@ -30,7 +30,7 @@ static char nvme_pr_type(enum pr_type type)
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}
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static int nvme_send_ns_head_pr_command(struct block_device *bdev,
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struct nvme_command *c, u8 *data, unsigned int data_len)
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struct nvme_command *c, void *data, unsigned int data_len)
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{
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struct nvme_ns_head *head = bdev->bd_disk->private_data;
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int srcu_idx = srcu_read_lock(&head->srcu);
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@ -46,7 +46,7 @@ static int nvme_send_ns_head_pr_command(struct block_device *bdev,
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}
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static int nvme_send_ns_pr_command(struct nvme_ns *ns, struct nvme_command *c,
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u8 *data, unsigned int data_len)
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void *data, unsigned int data_len)
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{
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c->common.nsid = cpu_to_le32(ns->head->ns_id);
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return nvme_submit_sync_cmd(ns->queue, c, data, data_len);
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@ -74,6 +74,17 @@ static int nvme_sc_to_pr_err(int nvme_sc)
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}
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}
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static int nvme_send_pr_command(struct block_device *bdev,
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struct nvme_command *c, void *data, unsigned int data_len)
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{
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if (IS_ENABLED(CONFIG_NVME_MULTIPATH) &&
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bdev->bd_disk->fops == &nvme_ns_head_ops)
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return nvme_send_ns_head_pr_command(bdev, c, data, data_len);
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return nvme_send_ns_pr_command(bdev->bd_disk->private_data, c, data,
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data_len);
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}
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static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
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u64 key, u64 sa_key, u8 op)
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{
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@ -87,13 +98,7 @@ static int nvme_pr_command(struct block_device *bdev, u32 cdw10,
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c.common.opcode = op;
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c.common.cdw10 = cpu_to_le32(cdw10);
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if (IS_ENABLED(CONFIG_NVME_MULTIPATH) &&
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bdev->bd_disk->fops == &nvme_ns_head_ops)
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ret = nvme_send_ns_head_pr_command(bdev, &c, data,
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sizeof(data));
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else
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ret = nvme_send_ns_pr_command(bdev->bd_disk->private_data, &c,
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data, sizeof(data));
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ret = nvme_send_pr_command(bdev, &c, data, sizeof(data));
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if (ret < 0)
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return ret;
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