[dpdk-dev] [PATCH] app/testpmd: fix failing to enable SW checksum calculation

[Jiayu Hu]

In current design, we can't enable SW checksum calculation
for the devices which don't have checksum offloading abilities
via the command "csum set ip|tcp|udp|sctp|outer-ip sw <port_id>".
But SW checksum calculation shouldn't depend on HW offloading
abilities. This patch is to fix this issue.

Fixes: 3926dd2b6668 ("app/testpmd: enforce offload capabilities check")
Signed-off-by: Jiayu Hu <jiayu.hu at intel.com>
---
 app/test-pmd/cmdline.c | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 9f12c0f..a2db9b7 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -3706,40 +3706,40 @@ cmd_csum_parsed(void *parsed_result,
 			hw = 1;
 
 		if (!strcmp(res->proto, "ip")) {
-			if (dev_info.tx_offload_capa &
-						DEV_TX_OFFLOAD_IPV4_CKSUM) {
+			if (hw == 0 || (dev_info.tx_offload_capa &
+						DEV_TX_OFFLOAD_IPV4_CKSUM)) {
 				csum_offloads |= DEV_TX_OFFLOAD_IPV4_CKSUM;
 			} else {
 				printf("IP checksum offload is not supported "
 				       "by port %u\n", res->port_id);
 			}
 		} else if (!strcmp(res->proto, "udp")) {
-			if (dev_info.tx_offload_capa &
-						DEV_TX_OFFLOAD_UDP_CKSUM) {
+			if (hw == 0 || (dev_info.tx_offload_capa &
+						DEV_TX_OFFLOAD_UDP_CKSUM)) {
 				csum_offloads |= DEV_TX_OFFLOAD_UDP_CKSUM;
 			} else {
 				printf("UDP checksum offload is not supported "
 				       "by port %u\n", res->port_id);
 			}
 		} else if (!strcmp(res->proto, "tcp")) {
-			if (dev_info.tx_offload_capa &
-						DEV_TX_OFFLOAD_TCP_CKSUM) {
+			if (hw == 0 || (dev_info.tx_offload_capa &
+						DEV_TX_OFFLOAD_TCP_CKSUM)) {
 				csum_offloads |= DEV_TX_OFFLOAD_TCP_CKSUM;
 			} else {
 				printf("TCP checksum offload is not supported "
 				       "by port %u\n", res->port_id);
 			}
 		} else if (!strcmp(res->proto, "sctp")) {
-			if (dev_info.tx_offload_capa &
-						DEV_TX_OFFLOAD_SCTP_CKSUM) {
+			if (hw == 0 || (dev_info.tx_offload_capa &
+						DEV_TX_OFFLOAD_SCTP_CKSUM)) {
 				csum_offloads |= DEV_TX_OFFLOAD_SCTP_CKSUM;
 			} else {
 				printf("SCTP checksum offload is not supported "
 				       "by port %u\n", res->port_id);
 			}
 		} else if (!strcmp(res->proto, "outer-ip")) {
-			if (dev_info.tx_offload_capa &
-					DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM) {
+			if (hw == 0 || (dev_info.tx_offload_capa &
+					DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM)) {
 				csum_offloads |=
 						DEV_TX_OFFLOAD_OUTER_IPV4_CKSUM;
 			} else {
-- 
2.7.4