From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Miller Subject: Re: [PATCH net-next v2 1/1] net/tls: Combined memory allocation for decryption request Date: Thu, 09 Aug 2018 14:23:40 -0700 (PDT) Message-ID: <20180809.142340.103985387547323203.davem@davemloft.net> References: <20180808232623.18075-1-vakul.garg@nxp.com> <20180808232623.18075-2-vakul.garg@nxp.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org, borisp@mellanox.com, aviadye@mellanox.com, davejwatson@fb.com To: vakul.garg@nxp.com Return-path: Received: from shards.monkeyblade.net ([23.128.96.9]:37254 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726991AbeHIXuW (ORCPT ); Thu, 9 Aug 2018 19:50:22 -0400 In-Reply-To: <20180808232623.18075-2-vakul.garg@nxp.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Vakul Garg Date: Thu, 9 Aug 2018 04:56:23 +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 > --- > This patch needs to be applied over Doron Roberts-Kedes's patch. > net/tls: Calculate nsg for zerocopy path without skb_cow_data. That's going to have many changes, I gave feedback on it yesterday. Please do not post patches which have pre-requisites which are in the process of changing or similar as that makes a lot more work for me and you are also asking people to review changes on top of code which is going to change. Thanks.