redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

xprtrdma: Raise maximum payload size to one megabyte 

The point of larger rsize and wsize is to reduce the per-byte cost
of memory registration and deregistration. Modern HCAs can typically
handle a megabyte or more with a single registration operation.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Devesh Sharma <devesh.sharma@avagotech.com>
Reviewed-By: Sagi Grimberg <sagig@mellanox.com>
Tested-by: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
steinar/wifi_calib_4_9_kernel
Chuck Lever 2015-08-03 13:02:50 -04:00 committed by Anna Schumaker
parent 5231eb9773
commit 864be126fe
1 changed files with 1 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
net/sunrpc/xprtrdma/xprt_rdma.h
View File

@ -165,8 +165,7 @@ rdmab_to_msg(struct rpcrdma_regbuf *rb)
* struct rpcrdma_buffer. N is the max number of outstanding requests.
*/
/* temporary static scatter/gather max */
#define RPCRDMA_MAX_DATA_SEGS (64) /* max scatter/gather */
#define RPCRDMA_MAX_DATA_SEGS ((1 * 1024 * 1024) / PAGE_SIZE)
#define RPCRDMA_MAX_SEGS (RPCRDMA_MAX_DATA_SEGS + 2) /* head+tail = 2 */
struct rpcrdma_buffer;