summaryrefslogtreecommitdiff
path: root/net/rds/rds.h
diff options
context:
space:
mode:
authorAvinash Repaka <avinash.repaka@oracle.com>2016-03-01 02:30:57 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-11-30 11:39:10 +0300
commitaa85ae9db9d123c3d37645bbd491f9fe89b43ece (patch)
treefffd3087804e8074455bd3652409b9f0df42de26 /net/rds/rds.h
parent65ce358100eaf7f7a8ab2b7dc949d562162d1f60 (diff)
downloadlinux-aa85ae9db9d123c3d37645bbd491f9fe89b43ece.tar.xz
RDS: make message size limit compliant with spec
[ Upstream commit f9fb69adb6c7acca60977a4db5a5f95b8e66c041 ] RDS support max message size as 1M but the code doesn't check this in all cases. Patch fixes it for RDMA & non-RDMA and RDS MR size and its enforced irrespective of underlying transport. Signed-off-by: Avinash Repaka <avinash.repaka@oracle.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com> Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/rds/rds.h')
-rw-r--r--net/rds/rds.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/net/rds/rds.h b/net/rds/rds.h
index f107a968ddff..30a51fec0f63 100644
--- a/net/rds/rds.h
+++ b/net/rds/rds.h
@@ -50,6 +50,9 @@ void rdsdebug(char *fmt, ...)
#define RDS_FRAG_SHIFT 12
#define RDS_FRAG_SIZE ((unsigned int)(1 << RDS_FRAG_SHIFT))
+/* Used to limit both RDMA and non-RDMA RDS message to 1MB */
+#define RDS_MAX_MSG_SIZE ((unsigned int)(1 << 20))
+
#define RDS_CONG_MAP_BYTES (65536 / 8)
#define RDS_CONG_MAP_PAGES (PAGE_ALIGN(RDS_CONG_MAP_BYTES) / PAGE_SIZE)
#define RDS_CONG_MAP_PAGE_BITS (PAGE_SIZE * 8)