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| author | Keith Busch | 2015-10-22 23:45:06 +0200 |
|---|---|---|
| committer | Jens Axboe | 2015-12-22 17:38:33 +0100 |
| commit | 540c801c65eb58e05e0ca38b6fd644a83d7e2b33 (patch) | |
| tree | 075d454c67f120adcc150464fad48ab3bfa9f430 /drivers/nvme/host/nvme.h | |
| parent | nvme: switch abort_limit to an atomic_t (diff) | |
| download | kernel-qcow2-linux-540c801c65eb58e05e0ca38b6fd644a83d7e2b33.tar.gz kernel-qcow2-linux-540c801c65eb58e05e0ca38b6fd644a83d7e2b33.tar.xz kernel-qcow2-linux-540c801c65eb58e05e0ca38b6fd644a83d7e2b33.zip | |
NVMe: Implement namespace list scanning
The NVMe 1.1 specification provides an identify mode to return a
list of active namespaces. This is more efficient to discover which
namespace identifiers are active on a controller, providing potentially
significant improvement in scan time for controllers with sparesly
populated namespaces.
Signed-off-by: Keith Busch <keith.busch@intel.com>
[hch: add quirk for the broken Qemu Identify implementation. To be relaxed
later]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/nvme.h')
| -rw-r--r-- | drivers/nvme/host/nvme.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h index 982fa303cec6..2965c469da4a 100644 --- a/drivers/nvme/host/nvme.h +++ b/drivers/nvme/host/nvme.h @@ -53,6 +53,12 @@ enum nvme_quirks { * specific Identify field. */ NVME_QUIRK_STRIPE_SIZE = (1 << 0), + + /* + * The controller doesn't handle Identify value others than 0 or 1 + * correctly. + */ + NVME_QUIRK_IDENTIFY_CNS = (1 << 1), }; struct nvme_ctrl { |