[dpdk-dev] [PATCH v1] net/tap: fix CRC stripping capability report

[Ophir Munk]

CRC stripping is executed outside of TAP PMD scope. There is no
prevention that TAP reports on Rx CRC stripping capability.
It is especially required when TAP is operating as failsafe sub-device
with another PCI sub-device which supports CRC stripping.
In the corrupted code TAP did not report on this capability which
caused failsafe to not report on it as well.
The fix is for TAP to report that Rx CRC stripping is supported.

Fixes: 95ae196ae10b ("net/tap: use new Rx offloads API")
Cc: stable at dpdk.org

Signed-off-by: Ophir Munk <ophirmu at mellanox.com>
---
 drivers/net/tap/rte_eth_tap.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/net/tap/rte_eth_tap.c b/drivers/net/tap/rte_eth_tap.c
index 9d39384..f09db0e 100644
--- a/drivers/net/tap/rte_eth_tap.c
+++ b/drivers/net/tap/rte_eth_tap.c
@@ -261,7 +261,8 @@ tap_rx_offload_get_port_capa(void)
 	return DEV_RX_OFFLOAD_SCATTER |
 	       DEV_RX_OFFLOAD_IPV4_CKSUM |
 	       DEV_RX_OFFLOAD_UDP_CKSUM |
-	       DEV_RX_OFFLOAD_TCP_CKSUM;
+	       DEV_RX_OFFLOAD_TCP_CKSUM |
+	       DEV_RX_OFFLOAD_CRC_STRIP;
 }
 
 static uint64_t
@@ -270,7 +271,8 @@ tap_rx_offload_get_queue_capa(void)
 	return DEV_RX_OFFLOAD_SCATTER |
 	       DEV_RX_OFFLOAD_IPV4_CKSUM |
 	       DEV_RX_OFFLOAD_UDP_CKSUM |
-	       DEV_RX_OFFLOAD_TCP_CKSUM;
+	       DEV_RX_OFFLOAD_TCP_CKSUM |
+	       DEV_RX_OFFLOAD_CRC_STRIP;
 }
 
 static bool
-- 
2.7.4