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mbuf: sort TCP segmentation offload flag

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Due to reordering conflicts, the TSO flag was not sorted.

Signed-off-by: Thomas Monjalon <thomas.monjalon@6wind.com>
This commit is contained in:
Thomas Monjalon 2014-11-27 10:35:56 +01:00
parent 63dd47b9a5
commit df2e9cec22
1 changed files with 16 additions and 15 deletions
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31
lib/librte_mbuf/rte_mbuf.h
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@ -102,6 +102,22 @@ extern "C" {
/* add new RX flags here */
/* add new TX flags here */
/**
* 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
* PKT_TX_TCP_CKSUM)
* - set the flag PKT_TX_IPV4 or PKT_TX_IPV6
* - if it's IPv4, set the PKT_TX_IP_CKSUM flag and write the IP checksum
* to 0 in the packet
* - fill the mbuf offload information: l2_len, l3_len, l4_len, tso_segsz
* - calculate the pseudo header checksum without taking ip_len in account,
* and set it in the TCP header. Refer to rte_ipv4_phdr_cksum() and
* rte_ipv6_phdr_cksum() that can be used as helpers.
*/
#define PKT_TX_TCP_SEG (1ULL << 49)
#define PKT_TX_VXLAN_CKSUM (1ULL << 50) /**< TX checksum of VXLAN computed by NIC */
#define PKT_TX_IEEE1588_TMST (1ULL << 51) /**< TX IEEE1588 packet to timestamp. */
@ -133,21 +149,6 @@ extern "C" {
#define PKT_TX_VLAN_PKT (1ULL << 55) /**< TX packet is a 802.1q VLAN packet. */
/**
* 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
* PKT_TX_TCP_CKSUM)
* - set the flag PKT_TX_IPV4 or PKT_TX_IPV6
* - if it's IPv4, set the PKT_TX_IP_CKSUM flag and write the IP checksum
* to 0 in the packet
* - fill the mbuf offload information: l2_len, l3_len, l4_len, tso_segsz
* - calculate the pseudo header checksum without taking ip_len in accound,
* and set it in the TCP header. Refer to rte_ipv4_phdr_cksum() and
* rte_ipv6_phdr_cksum() that can be used as helpers.
*/
#define PKT_TX_TCP_SEG (1ULL << 49)
/* Use final bit of flags to indicate a control mbuf */
#define CTRL_MBUF_FLAG (1ULL << 63) /**< Mbuf contains control data */