diff options
| author | Steve French <stfrench@microsoft.com> | 2019-09-09 07:22:02 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2019-09-16 19:43:38 +0300 |
| commit | 563317ec3083f7e126d7e30821ff8505ac338ee5 (patch) | |
| tree | 1861eea90a780a694310c2d6a1551400333cdee1 /fs/cifs/cifsglob.h | |
| parent | 35cf94a397280b9e27576ac1480f631bdd3e7b70 (diff) | |
| download | linux-563317ec3083f7e126d7e30821ff8505ac338ee5.tar.xz | |
smb3: enable offload of decryption of large reads via mount option
Disable offload of the decryption of encrypted read responses
by default (equivalent to setting this new mount option "esize=0").
Allow setting the minimum encrypted read response size that we
will choose to offload to a worker thread - it is now configurable
via on a new mount option "esize="
Depending on which encryption mechanism (GCM vs. CCM) and
the number of reads that will be issued in parallel and the
performance of the network and CPU on the client, it may make
sense to enable this since it can provide substantial benefit when
multiple large reads are in flight at the same time.
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/cifsglob.h')
| -rw-r--r-- | fs/cifs/cifsglob.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h index d66106ac031a..6987fbc5a24a 100644 --- a/fs/cifs/cifsglob.h +++ b/fs/cifs/cifsglob.h @@ -592,6 +592,7 @@ struct smb_vol { unsigned int bsize; unsigned int rsize; unsigned int wsize; + unsigned int min_offload; bool sockopt_tcp_nodelay:1; unsigned long actimeo; /* attribute cache timeout (jiffies) */ struct smb_version_operations *ops; @@ -745,6 +746,7 @@ struct TCP_Server_Info { #endif /* STATS2 */ unsigned int max_read; unsigned int max_write; + unsigned int min_offload; __le16 compress_algorithm; __le16 cipher_type; /* save initital negprot hash */ |