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| author | Haren Myneni <haren@linux.ibm.com> | 2021-06-17 13:39:08 -0700 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-06-20 21:58:58 +1000 |
| commit | 8c099490fd2bd3b012b3b6d0babbba3b90e69b55 (patch) | |
| tree | 6ea6840a449123bb6b9335176e5f6b07ca2355de /block | |
| parent | b4ba22114c78de48fda3818f569f75e97d58c719 (diff) | |
crypto/nx: Add sysfs interface to export NX capabilities
Export NX-GZIP capabilities to usrespace in sysfs
/sys/devices/vio/ibm,compression-v1/nx_gzip_caps directory.
These are queried by userspace accelerator libraries to set
minimum length heuristics and maximum limits on request sizes.
NX-GZIP capabilities:
min_compress_len /*Recommended minimum compress length in bytes*/
min_decompress_len /*Recommended minimum decompress length in bytes*/
req_max_processed_len /* Maximum number of bytes processed in one
request */
NX will return RMA_Reject if the request buffer size is greater
than req_max_processed_len.
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/510da86abbd904878d5f13d74aba72603c37d783.camel@linux.ibm.com
Diffstat (limited to 'block')
0 files changed, 0 insertions, 0 deletions