This patch adds extra 32bits to rte_mbuf::hash - so 'uint32_t usr' will move to the second cache line?
Regards, Andrey -----Original Message----- From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Jingjing Wu Sent: Friday, November 21, 2014 12:47 AM To: dev at dpdk.org Subject: [dpdk-dev] [PATCH v6 09/22] mbuf: extend fdir field fdir field in rte_mbuf is extened to support flex bytes reported when fdir match. 8 flex bytes can be reported in maximum. The reported flex bytes are part of flexible payload. Signed-off-by: jingjing.wu <jingjing.wu at intel.com> --- lib/librte_mbuf/rte_mbuf.h | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/lib/librte_mbuf/rte_mbuf.h b/lib/librte_mbuf/rte_mbuf.h index f5f8658..5899e5c 100644 --- a/lib/librte_mbuf/rte_mbuf.h +++ b/lib/librte_mbuf/rte_mbuf.h @@ -77,7 +77,7 @@ extern "C" { */ #define PKT_RX_VLAN_PKT (1ULL << 0) /**< RX packet is a 802.1q VLAN packet. */ #define PKT_RX_RSS_HASH (1ULL << 1) /**< RX packet with RSS hash result. */ -#define PKT_RX_FDIR (1ULL << 2) /**< RX packet with FDIR infos. */ +#define PKT_RX_FDIR (1ULL << 2) /**< RX packet with FDIR match indicate. */ #define PKT_RX_L4_CKSUM_BAD (1ULL << 3) /**< L4 cksum of RX pkt. is not OK. */ #define PKT_RX_IP_CKSUM_BAD (1ULL << 4) /**< IP cksum of RX pkt. is not OK. */ #define PKT_RX_EIP_CKSUM_BAD (0ULL << 0) /**< External IP header checksum error. */ @@ -93,6 +93,8 @@ extern "C" { #define PKT_RX_IEEE1588_TMST (1ULL << 10) /**< RX IEEE1588 L2/L4 timestamped packet.*/ #define PKT_RX_TUNNEL_IPV4_HDR (1ULL << 11) /**< RX tunnel packet with IPv4 header.*/ #define PKT_RX_TUNNEL_IPV6_HDR (1ULL << 12) /**< RX tunnel packet with IPv6 header. */ +#define PKT_RX_FDIR_ID (1ULL << 13) /**< FD id reported if FDIR match. */ +#define PKT_RX_FDIR_FLX (1ULL << 14) /**< Flexible bytes reported if FDIR match. */ #define PKT_TX_VLAN_PKT (1ULL << 55) /**< TX packet is a 802.1q VLAN packet. */ #define PKT_TX_IP_CKSUM (1ULL << 54) /**< IP cksum of TX pkt. computed by NIC. */ @@ -181,8 +183,17 @@ struct rte_mbuf { union { uint32_t rss; /**< RSS hash result if RSS enabled */ struct { - uint16_t hash; - uint16_t id; + union { + struct { + uint16_t hash; + uint16_t id; + }; + uint32_t lo; + /**< Second 4 flexible bytes */ + }; + uint32_t hi; + /**< First 4 flexible bytes or FD ID, dependent on + PKT_RX_FDIR_* flag in ol_flags. */ } fdir; /**< Filter identifier if FDIR enabled */ uint32_t sched; /**< Hierarchical scheduler */ uint32_t usr; /**< User defined tags. See @rte_distributor_process */ -- 1.8.1.4
