netdev - Re: [PATCH net-next 00/12] mlx5 TLS TX HW offload support

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Message-ID: <20190705131938.43b889ff@cakuba.netronome.com>
Date:   Fri, 5 Jul 2019 13:19:38 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Tariq Toukan <tariqt@...lanox.com>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Eran Ben Elisha <eranbe@...lanox.com>,
        Saeed Mahameed <saeedm@...lanox.com>, moshe@...lanox.com
Subject: Re: [PATCH net-next 00/12] mlx5 TLS TX HW offload support

On Fri,  5 Jul 2019 18:30:10 +0300, Tariq Toukan wrote:
> Hi Dave,
> 
> This series from Eran and me, adds TLS TX HW offload support to
> the mlx5 driver.
> 
> This offloads the kTLS encryption process from kernel to the 
> Mellanox NIC, saving CPU cycles and improving utilization.
> 
> Upon a new TLS connection request, driver is responsible to create
> a dedicated HW context and configure it according to the crypto info,
> so HW can do the encryption itself.
> 
> When the HW context gets out-of-sync (i.e. due to packets retransmission),
> driver is responsible for the re-sync process.
> This is done by posting special resync descriptors to the HW.
> 
> Feature is supported on Mellanox Connect-X 6DX, and newer.
> Series was tested on SimX simulator.
> 
> Series generated against net-next commit [1], with Saeed's request pulled [2]:
> 
> [1] c4cde5804d51 Merge git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
> [2] git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux.git tags/mlx5-updates-2019-07-04-v2
> 
> Changes from last pull request:
> Fixed comments from Jakub:
> Patch 4:
> - Replace zero  memset with a call to memzero_explicit().
> Patch 11:
> - Fix stats counters names.
> - Drop TLS SKB with non-matching netdev.

You guys probably really want to make 5.3 with this, so please feel free
to follow up on the comments to patch 12 separately.

Acked-by: Jakub Kicinski <jakub.kicinski@...ronome.com>