[dpdk-dev] [PATCH v2 0/3] net/mlx5: add Multi-Packet Rx support
Shahaf Shuler
shahafs at mellanox.com
Wed May 9 15:57:43 CEST 2018
Wednesday, May 9, 2018 2:14 PM, Yongseok Koh:
> Subject: [dpdk-dev] [PATCH v2 0/3] net/mlx5: add Multi-Packet Rx support
>
> Multi-Packet Rx Queue (MPRQ a.k.a Striding RQ) can further save PCIe
> bandwidth by posting a single large buffer for multiple packets. Instead of
> posting a buffer per a packet, one large buffer is posted in order to receive
> multiple packets on the buffer. A MPRQ buffer consists of multiple fixed-size
> strides and each stride receives one packet.
>
> Rx packet is mem-copied to a user-provided mbuf if the size of Rx packet is
> comparatively small, or PMD attaches the Rx packet to the mbuf by external
> buffer attachment - rte_pktmbuf_attach_extbuf(). A mempool for external
> buffers will be allocated and managed by PMD.
>
> This patchset should be applied after:
> net/mlx5: add new Memory Region support
>
Series applied to next-net-mlx, thanks.
>
> v2:
> * add mprq_log_stride_num parameter to configure the number of strides.
> * enable configuring larger max_rx_pkt_len than the size of user-provided
> mbuf. The size of the stride isn't static anymore but dynamically
> determined.
> * enhance documentation.
> * fix issues from review.
>
> Yongseok Koh (3):
> net/mlx5: separate filling Rx flags
> net/mlx5: add a function to rdma-core glue
> net/mlx5: add Multi-Packet Rx support
>
> doc/guides/nics/mlx5.rst | 58 +++++
> drivers/net/mlx5/Makefile | 5 +
> drivers/net/mlx5/mlx5.c | 83 +++++++
> drivers/net/mlx5/mlx5.h | 11 +
> drivers/net/mlx5/mlx5_defs.h | 18 ++
> drivers/net/mlx5/mlx5_ethdev.c | 3 +
> drivers/net/mlx5/mlx5_glue.c | 16 ++
> drivers/net/mlx5/mlx5_glue.h | 8 +
> drivers/net/mlx5/mlx5_prm.h | 15 ++
> drivers/net/mlx5/mlx5_rxq.c | 494
> ++++++++++++++++++++++++++++++++++++---
> drivers/net/mlx5/mlx5_rxtx.c | 307 +++++++++++++++++++++---
> drivers/net/mlx5/mlx5_rxtx.h | 37 ++-
> drivers/net/mlx5/mlx5_rxtx_vec.c | 4 +
> drivers/net/mlx5/mlx5_rxtx_vec.h | 3 +-
> drivers/net/mlx5/mlx5_trigger.c | 6 +-
> 15 files changed, 992 insertions(+), 76 deletions(-)
>
> --
> 2.11.0
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