[dpdk-dev] [PATCH 1/3] add tx crc disable flag

Paul Emmerich emmericp at net.in.tum.de
Mon Feb 15 17:55:23 CET 2016


Signed-off-by: Paul Emmerich <emmericp at net.in.tum.de>
---
 lib/librte_mbuf/rte_mbuf.c | 1 +
 lib/librte_mbuf/rte_mbuf.h | 6 ++++++
 2 files changed, 7 insertions(+)

diff --git a/lib/librte_mbuf/rte_mbuf.c b/lib/librte_mbuf/rte_mbuf.c
index f506517..744fb4e 100644
--- a/lib/librte_mbuf/rte_mbuf.c
+++ b/lib/librte_mbuf/rte_mbuf.c
@@ -270,6 +270,7 @@ const char *rte_get_rx_ol_flag_name(uint64_t mask)
 const char *rte_get_tx_ol_flag_name(uint64_t mask)
 {
 	switch (mask) {
+	case PKT_TX_NO_CRC_CSUM: return "PKT_TX_NO_CRC_CSUM";
 	case PKT_TX_VLAN_PKT: return "PKT_TX_VLAN_PKT";
 	case PKT_TX_IP_CKSUM: return "PKT_TX_IP_CKSUM";
 	case PKT_TX_TCP_CKSUM: return "PKT_TX_TCP_CKSUM";
diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h
index ab6de67..096d84a 100644
--- a/lib/librte_mbuf/rte_mbuf.h
+++ b/lib/librte_mbuf/rte_mbuf.h
@@ -106,6 +106,12 @@ extern "C" {
 /* add new TX flags here */
 
 /**
+ * Disable CRC checksum offload
+ */
+#define PKT_TX_NO_CRC_CSUM   (1ULL << 49)
+
+
+/**
  * TCP segmentation offload. To enable this offload feature for a
  * packet to be transmitted on hardware supporting TSO:
  *  - set the PKT_TX_TCP_SEG flag in mbuf->ol_flags (this flag implies
-- 
1.9.1



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