Added macro to support iSER on RHEL7.5

Signed-off-by: Vladimir Sokolovsky <vlad@mellanox.com>

diff --git a/config/rdma.m4 b/config/rdma.m4
index 929256bb2c8df4333fa2b01a9f5605c3691c7ff4..788cfd27fba59813f2a0eaa9e323bd87ce1d4176 100644 (file)
--- a/config/rdma.m4
+++ b/config/rdma.m4
@@ -6963,6 +6963,22 @@ AC_DEFUN([LINUX_CONFIG_COMPAT],
        ],[
                AC_MSG_RESULT(no)
        ])
+
+       AC_MSG_CHECKING([if libiscsi.h has iscsi_eh_cmd_timed_out])
+       LB_LINUX_TRY_COMPILE([
+               #include <linux/blkdev.h>
+               #include <scsi/libiscsi.h>
+       ],[
+               iscsi_eh_cmd_timed_out(NULL);
+
+               return 0;
+       ],[
+               AC_MSG_RESULT(yes)
+               AC_DEFINE(HAVE_ISCSI_EH_CMD_TIMED_OUT, 1,
+                       [iscsi_eh_cmd_timed_out is defined])
+       ],[
+               AC_MSG_RESULT(no)
+       ])
 ])
 #
 # COMPAT_CONFIG_HEADERS