Hi, > -----Original Message----- > From: Alexander Kozyrev <[email protected]> > Sent: Tuesday, July 13, 2021 6:21 PM > To: [email protected] > Cc: Raslan Darawsheh <[email protected]>; Matan Azrad > <[email protected]>; Slava Ovsiienko <[email protected]>; > [email protected] > Subject: [PATCH v2] net/mlx5: fix threshold for mbuf replenishment in MPRQ > > The replenishment scheme for the vectorized MPRQ Rx burst aims > to improve the cache locality by allocating new mbufs only when > there are almost no mbufs left: one burst gap between allocated > and consumed indexes. > > This gap is not big enough to accommodate a corner case when we > have a very aggressive CQE compression with multiple regular CQEs > at the beginning and 64 zipped CQEs at the end. > > Need to keep in mind this case and extend the replenishment > threshold by MLX5_VPMD_RX_MAX_BURST (64) to avoid mbuf overflow. > > Fixes: 5fc2e5c27d6 ("net/mlx5: fix mbuf overflow in vectorized MPRQ") > Cc: [email protected] > > Signed-off-by: Alexander Kozyrev <[email protected]> > Acked-by: Viacheslav Ovsiienko <[email protected]> > --- > > v2: increased the replenishment gap to MLX5_VPMD_RX_MAX_BURST > v1: > https://patchwork.dpdk.org/project/dpdk/patch/20210712142910.314572-1- > [email protected]/ > > drivers/net/mlx5/mlx5_rxtx_vec.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-)
Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh
