Perftest: Fix DC max out reads negotiation

sshaulnv · sshaulnv · commit 9e1f5f9ed466 · 2026-02-18T07:31:55.000Z
Signed-off-by: Shmuel Shaul &lt;sshaul@nvidia.com&gt;
diff --git a/src/perftest_parameters.c b/src/perftest_parameters.c
@@ -4891,7 +4891,7 @@ int compare_ibv_device(const char *name, void* local_value, void* remote_value,
 {
 	struct ibv_device_attr remote_attr = *(struct ibv_device_attr*)remote_value;
 
-	if (user_param->out_reads > remote_attr.max_qp_rd_atom) {  //  0 < user_param->out_reads <= local_attr.max_qp_rd_atom
+	if (user_param->connection_type != DC && user_param->out_reads > remote_attr.max_qp_rd_atom) {  //  0 < user_param->out_reads <= local_attr.max_qp_rd_atom
 		printf(" out_reads is greater than remote max_qp_rd_atom, using remote max_qp_rd_atom\n");
 		user_param->out_reads = remote_attr.max_qp_rd_atom;
 	}

Original file line number	Diff line number	Diff line change
`@@ -4891,7 +4891,7 @@ int compare_ibv_device(const char name, void local_value, void* remote_value,`
`4891`	`4891`	`{`
`4892`	`4892`	`struct ibv_device_attr remote_attr = (struct ibv_device_attr)remote_value;`
`4893`	`4893`
`4894`		`- if (user_param->out_reads > remote_attr.max_qp_rd_atom) { // 0 < user_param->out_reads <= local_attr.max_qp_rd_atom`
	`4894`	`+ if (user_param->connection_type != DC && user_param->out_reads > remote_attr.max_qp_rd_atom) { // 0 < user_param->out_reads <= local_attr.max_qp_rd_atom`
`4895`	`4895`	`printf(" out_reads is greater than remote max_qp_rd_atom, using remote max_qp_rd_atom\n");`
`4896`	`4896`	`user_param->out_reads = remote_attr.max_qp_rd_atom;`
`4897`	`4897`	`}`