netdev - Re: [PATCH net-next v3 1/1] net/tls: Combined memory allocation for decryption request

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Message-Id: <20180813.084240.2041358561255548966.davem@davemloft.net>
Date:   Mon, 13 Aug 2018 08:42:40 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     vakul.garg@....com
Cc:     netdev@...r.kernel.org, borisp@...lanox.com, aviadye@...lanox.com,
        davejwatson@...com
Subject: Re: [PATCH net-next v3 1/1] net/tls: Combined memory allocation
 for decryption request

From: Vakul Garg <vakul.garg@....com>
Date: Fri, 10 Aug 2018 20:46:41 +0530

> For preparing decryption request, several memory chunks are required
> (aead_req, sgin, sgout, iv, aad). For submitting the decrypt request to
> an accelerator, it is required that the buffers which are read by the
> accelerator must be dma-able and not come from stack. The buffers for
> aad and iv can be separately kmalloced each, but it is inefficient.
> This patch does a combined allocation for preparing decryption request
> and then segments into aead_req || sgin || sgout || iv || aad.
> 
> Signed-off-by: Vakul Garg <vakul.garg@....com>
> ---
> 
> Changes since v2:
> 	- Rebased to not require following Doron Roberts-Kedes's patch.
> 	"net/tls: Calculate nsg for zerocopy path without skb_cow_data."

Applied.