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| author | Christoph Hellwig | 2015-11-28 15:37:52 +0100 |
|---|---|---|
| committer | Jens Axboe | 2015-12-01 18:59:39 +0100 |
| commit | 7fd8930f26be4c9078684b2fef14da0503771bf2 (patch) | |
| tree | ab4847b46857510c32ae377f969c417856909309 /drivers/nvme/host/nvme.h | |
| parent | nvme: move nvme_{enable,disable,shutdown}_ctrl to common code (diff) | |
| download | kernel-qcow2-linux-7fd8930f26be4c9078684b2fef14da0503771bf2.tar.gz kernel-qcow2-linux-7fd8930f26be4c9078684b2fef14da0503771bf2.tar.xz kernel-qcow2-linux-7fd8930f26be4c9078684b2fef14da0503771bf2.zip | |
nvme: add a common helper to read Identify Controller data
And add the 64-bit register read operation for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Keith Busch <keith.busch@intel.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index b6c5a55ed59f..a624add7ca22 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -62,6 +62,8 @@ struct nvme_ctrl { u32 ctrl_config; u32 page_size; + u32 max_hw_sectors; + u32 stripe_size; u16 oncs; u16 abort_limit; u8 event_limit; @@ -93,6 +95,7 @@ struct nvme_ns { struct nvme_ctrl_ops { int (*reg_read32)(struct nvme_ctrl *ctrl, u32 off, u32 *val); int (*reg_write32)(struct nvme_ctrl *ctrl, u32 off, u32 val); + int (*reg_read64)(struct nvme_ctrl *ctrl, u32 off, u64 *val); void (*free_ctrl)(struct nvme_ctrl *ctrl); }; @@ -177,6 +180,7 @@ int nvme_disable_ctrl(struct nvme_ctrl *ctrl, u64 cap); int nvme_enable_ctrl(struct nvme_ctrl *ctrl, u64 cap); int nvme_shutdown_ctrl(struct nvme_ctrl *ctrl); void nvme_put_ctrl(struct nvme_ctrl *ctrl); +int nvme_init_identify(struct nvme_ctrl *ctrl); void nvme_put_ns(struct nvme_ns *ns); struct request *nvme_alloc_request(struct request_queue *q, |