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| author | Christoph Hellwig <hch@lst.de> | 2017-02-08 14:46:50 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-02-08 13:43:10 -0700 |
| commit | b35ba01ea6979125e9c23fb322517748278f15e6 (patch) | |
| tree | 41ad3c16c12d34660e135b6ffd6be7424d3ba305 /include/linux/nvme.h | |
| parent | 1e739730c5b9ea80a2f25e9cf6e1025d47e3d8ed (diff) | |
| download | lwn-b35ba01ea6979125e9c23fb322517748278f15e6.tar.gz lwn-b35ba01ea6979125e9c23fb322517748278f15e6.zip | |
nvme: support ranged discard requests
NVMe supports up to 256 ranges per DSM command, so wire up support
for ranged discards up to that limit.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'include/linux/nvme.h')
| -rw-r--r-- | include/linux/nvme.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/nvme.h b/include/linux/nvme.h index 3d1c6f1b15c9..3e2ed49c3ad8 100644 --- a/include/linux/nvme.h +++ b/include/linux/nvme.h @@ -553,6 +553,8 @@ enum { NVME_DSMGMT_AD = 1 << 2, }; +#define NVME_DSM_MAX_RANGES 256 + struct nvme_dsm_range { __le32 cattr; __le32 nlb; |