[dpdk-dev] [PATCH v3 0/4] net/mlx5: remove Tx descriptor reserved field usage

[Raslan Darawsheh]

Hi,

> -----Original Message-----
> From: Viacheslav Ovsiienko <viacheslavo at mellanox.com>
> Sent: Thursday, January 9, 2020 7:16 PM
> To: dev at dpdk.org
> Cc: Matan Azrad <matan at mellanox.com>; Raslan Darawsheh
> <rasland at mellanox.com>; Ori Kam <orika at mellanox.com>
> Subject: [PATCH v3 0/4] net/mlx5: remove Tx descriptor reserved field usage
> 
> The current Tx datapath implementation in mlx5 PMD uses the 16-bit
> reserved field within transmit descriptor to store the indices of the elts array
> keeping the mbuf pointers to be freed on transmit completion. On
> completion PMD fetches the descriptor index, then fetches the elts array
> index from reserved field and frees the mbufs.
> 
> The new ConnectX-6DX NIC might use this reserved descriptor field and
> existing implementation might not work in intended way.
> To resolve this issue the dedicated buffer is introduced to store indices to
> instead of descriptor field.
> 
> Signed-off-by: Viacheslav Ovsiienko <viacheslavo at mellanox.com>
> 
> Viacheslav Ovsiienko (4):
>   net/mlx5: move Tx complete request routine
>   net/mlx5: update Tx error handling routine
>   net/mlx5: add free on completion queue
>   net/mlx5: engage free on completion queue
> 
>  drivers/net/mlx5/mlx5_rxtx.c | 153 ++++++++++++++++++++-----------------
> ------
>  drivers/net/mlx5/mlx5_rxtx.h |  13 ++--  drivers/net/mlx5/mlx5_txq.c  |  19
> +++++-
>  3 files changed, 94 insertions(+), 91 deletions(-)
> 
> --
> v1: -
> https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch
> es.dpdk.org%2Fcover%2F64293%2F&data=02%7C01%7Crasland%40mell
> anox.com%7C2581e58267ee4d46f6db08d79527c2da%7Ca652971c7d2e4d9ba6
> a4d149256f461b%7C0%7C0%7C637141870319356462&sdata=rSy16E3H9
> OqxKekFtNTPSii3%2FPrKK1xjvEVddF14oMw%3D&reserved=0
> v2: -
> https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2Fpatch
> es.dpdk.org%2Fcover%2F64331%2F&data=02%7C01%7Crasland%40mell
> anox.com%7C2581e58267ee4d46f6db08d79527c2da%7Ca652971c7d2e4d9ba6
> a4d149256f461b%7C0%7C0%7C637141870319356462&sdata=N3XndSHXY
> Ae73Ubu%2BNNlr6CBDt6ciq7HKxNnuerHpzo%3D&reserved=0
>     - resolve minor compilation per patch issues
> v3: - change the fcq entry type to uint16_t in non-debug mode
> 
> 1.8.3.1

Series applied to next-net-mlx,

Kindest regards,
Raslan Darawsheh