Hi,
> -----Original Message----- > From: Alexander Kozyrev <[email protected]> > Sent: Saturday, November 21, 2020 5:43 AM > To: [email protected] > Cc: Raslan Darawsheh <[email protected]>; Slava Ovsiienko > <[email protected]>; Matan Azrad <[email protected]> > Subject: [PATCH] net/mlx5: fix mbufs overflow in vectorized MPRQ > > Changing the allocation scheme to improve mbufs locality caused mbufs > overrun in some cases. Revert the previous replenish logic back. > Calculate a number of unused mbufs and replenish max this number of > mbufs. > > Mark the last 4 mbufs as fake mbufs to prevent overflowing into consumed > mbufs in the future. Keep the consumed index and the produced index 4 > mbufs > apart for this purpose. > > Replenish some mbufs only in case the consumed index is within the > replenish threshold of the produced index in order to retain the cache > locality for the vectorized MPRQ routine. > > Fixes: 5c68764377 ("net/mlx5: improve vectorized MPRQ descriptors > locality") > > Signed-off-by: Alexander Kozyrev <[email protected]> > --- > drivers/net/mlx5/mlx5_rxtx_vec.c | 17 ++++++++++++----- > 1 file changed, 12 insertions(+), 5 deletions(-) > Patch applied to next-net-mlx, Kindest regards, Raslan Darawsheh
