From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jarod Wilson Subject: [PATCH perftest] perftest: make inline send on ocrdma work better Date: Fri, 19 Aug 2016 15:06:51 -0400 Message-ID: <1471633611-41155-1-git-send-email-jarod@redhat.com> Return-path: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org Cc: Jarod Wilson , Gil Rockah List-Id: linux-rdma@vger.kernel.org The ocrdma driver supports a maximum inline send size of 224, while the current code sets this size to 236. Add an ocrdma-specific check when setting max inline size to eliminate the need to always pass -I 224 when running ib_send_lat on ocrdma hardware. CC: Gil Rockah Signed-off-by: Jarod Wilson --- src/perftest_parameters.c | 8 ++++++++ src/perftest_parameters.h | 3 +++ 2 files changed, 11 insertions(+) diff --git a/src/perftest_parameters.c b/src/perftest_parameters.c index 3ffddd7..65ce731 100755 --- a/src/perftest_parameters.c +++ b/src/perftest_parameters.c @@ -1465,6 +1465,14 @@ static void ctx_set_max_inline(struct ibv_context *context,struct perftest_param } } + if (strncmp("ocrdma", user_param->ib_devname, 6) == 0) { + if (user_param->inline_size > DEF_INLINE_SEND_MAX_OCRDMA) { + fprintf(stdout, "lowering inline size to ocrdma supported maximum of %d\n", + DEF_INLINE_SEND_MAX_OCRDMA); + user_param->inline_size = DEF_INLINE_SEND_MAX_OCRDMA; + } + } + return; } /****************************************************************************** diff --git a/src/perftest_parameters.h b/src/perftest_parameters.h index 1122792..a566f42 100755 --- a/src/perftest_parameters.h +++ b/src/perftest_parameters.h @@ -133,6 +133,9 @@ #define DEF_INLINE_SEND_UD (188) #define DEF_INLINE_DC (150) +/* OCRDMA has an inline max of 224 */ +#define DEF_INLINE_SEND_MAX_OCRDMA (224) + /* Max and Min allowed values for perftest parameters. */ #define MIN_TOS (0) #define MAX_TOS (256) -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html