> -----Original Message-----
> From: Guo, Jia <jia....@intel.com>
> Sent: Wednesday, September 23, 2020 15:53
> To: Wu, Jingjing <jingjing...@intel.com>; Zhang, Qi Z <qi.z.zh...@intel.com>;
> Xing, Beilei
> <beilei.x...@intel.com>
> Cc: dev@dpdk.org; Wang, Haiyue <haiyue.w...@intel.com>; Guo, Jia
> <jia....@intel.com>
> Subject: [PATCH v3] net/iavf: support flex desc metadata extraction
>
> Enable metadata extraction for flexible descriptors in AVF, that would
> allow network function directly get metadata without additional parsing
> which would reduce the CPU cost for VFs. The enabling metadata
> extractions involve the metadata of VLAN/IPv4/IPv6/IPv6-FLOW/TCP/MPLS
> flexible descriptors, and the VF could negotiate the capability of
> the flexible descriptor with PF and correspondingly configure the
> specific offload at receiving queues.
>
> Signed-off-by: Jeff Guo <jia....@intel.com>
> ---
> v3:
> export these global symbols into .map
>
> v2:
> remove makefile change and modify the rxdid handling
> ---
> doc/guides/rel_notes/release_20_11.rst | 6 +
> drivers/net/iavf/iavf.h | 25 +-
> drivers/net/iavf/iavf_ethdev.c | 395 ++++++++++++++++++++++
> drivers/net/iavf/iavf_rxtx.c | 282 +++++++++++++--
> drivers/net/iavf/iavf_rxtx.h | 233 +++++++------
> drivers/net/iavf/iavf_vchnl.c | 22 +-
> drivers/net/iavf/meson.build | 2 +
> drivers/net/iavf/rte_pmd_iavf.h | 250 ++++++++++++++
> drivers/net/iavf/rte_pmd_iavf_version.map | 13 +
> 9 files changed, 1081 insertions(+), 147 deletions(-)
> create mode 100644 drivers/net/iavf/rte_pmd_iavf.h
>
> +enum iavf_flex_desc_type {
> + IAVF_FLEX_DESC_NONE,
> + IAVF_FLEX_DESC_VLAN,
> + IAVF_FLEX_DESC_IPV4,
> + IAVF_FLEX_DESC_IPV6,
> + IAVF_FLEX_DESC_IPV6_FLOW,
> + IAVF_FLEX_DESC_TCP,
> + IAVF_FLEX_DESC_OVS,
> + IAVF_FLEX_DESC_IP_OFFSET,
> + IAVF_FLEX_DESC_MAX,
> +};
The vector PMD will also support extract the above data type ? Take ice as
an example, if user specifies the 'proto_xtr', the vector Rx path will be
disabled, it will be handled in C function.
enum proto_xtr_type {
PROTO_XTR_NONE,
PROTO_XTR_VLAN,
PROTO_XTR_IPV4,
PROTO_XTR_IPV6,
PROTO_XTR_IPV6_FLOW,
PROTO_XTR_TCP,
PROTO_XTR_IP_OFFSET,
PROTO_XTR_MAX /* The last one */
};
static inline int
ice_rx_vec_queue_default(struct ice_rx_queue *rxq)
{
...
if (rxq->proto_xtr != PROTO_XTR_NONE)
return -1;
return 0;
}
> --
> 2.20.1
