Hi, > -----Original Message----- > From: Alexander Kozyrev <akozy...@nvidia.com> > Sent: Wednesday, October 21, 2020 11:30 PM > To: dev@dpdk.org > Cc: Raslan Darawsheh <rasl...@nvidia.com>; Matan Azrad > <ma...@nvidia.com>; Slava Ovsiienko <viachesl...@nvidia.com> > Subject: [PATCH v2 0/2] net/mlx5: add vectorized mprq > > The vectorized Rx burst function helps to accelerate the Rx processing > by using SIMD (single instruction, multiple data) extensions for the > multi-buffer packet processing. Pre-allocating multiple mbufs and > filling them in batches of four greatly improves the throughput of the > Rx burst routine. > > MPRQ (Multi-Packet Rx Queue) lacks the vectorized version currently. > It works by posting a single large buffer (consisted of multiple > fixed-size strides) in order to receive multiple packets at once on this > buffer. A Rx packet is then copied to a user-provided mbuf or PMD > attaches the Rx packet to the mbuf by the pointer to an external buffer. > > It is proposed to add a vectorized MPRQ Rx routine to speed up the MPRQ > buffer handling as well. It would require pre-allocation of multiple > mbufs every time we exhaust all the strides from the current MPRQ buffer > and switch to a new one. The new mlx5_rx_burst_mprq_vec() routine will > take care of this as well as of decision on whether should we copy or > attach an external buffer for a packet. The batch processing logic won't > be different from the simple vectorized Rx routine. > > The new vectorized MPRQ burst function is going to be selected > automatically whenever the mprq_en devarg is specified. If SIMD is not > available on the platform we fall back to the simple MPRQ Rx burst > function. LRO is not supported by the vectorized MPRQ version and fall > back to the regular MPRQ will be performed. > > > Alexander Kozyrev (2): > net/mlx5: refactor vectorized Rx routine > net/mlx5: implement vectorized MPRQ burst > > drivers/net/mlx5/mlx5_devx.c | 15 +- > drivers/net/mlx5/mlx5_ethdev.c | 20 +- > drivers/net/mlx5/mlx5_rxq.c | 96 +++--- > drivers/net/mlx5/mlx5_rxtx.c | 237 ++++--------- > drivers/net/mlx5/mlx5_rxtx.h | 200 ++++++++++- > drivers/net/mlx5/mlx5_rxtx_vec.c | 416 ++++++++++++++++++++++- > drivers/net/mlx5/mlx5_rxtx_vec.h | 55 --- > drivers/net/mlx5/mlx5_rxtx_vec_altivec.h | 106 ++---- > drivers/net/mlx5/mlx5_rxtx_vec_neon.h | 103 ++---- > drivers/net/mlx5/mlx5_rxtx_vec_sse.h | 121 ++----- > 10 files changed, 813 insertions(+), 556 deletions(-) > > -- > 2.24.1
Series applied to next-net-mlx, Kindest regards, Raslan Darawsheh
