Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751179AbWC2Wws (ORCPT ); Wed, 29 Mar 2006 17:52:48 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1751175AbWC2Wws (ORCPT ); Wed, 29 Mar 2006 17:52:48 -0500 Received: from [198.78.49.142] ([198.78.49.142]:36357 "EHLO gitlost.site") by vger.kernel.org with ESMTP id S1751145AbWC2Wwr (ORCPT ); Wed, 29 Mar 2006 17:52:47 -0500 From: Chris Leech Subject: [PATCH 0/9] I/OAT Date: Wed, 29 Mar 2006 14:55:05 -0800 To: linux-kernel@vger.kernel.org, netdev@vger.kernel.org Message-Id: <20060329225505.25585.30392.stgit@gitlost.site> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2047 Lines: 45 This patch series is the a full release of the Intel(R) I/O Acceleration Technology (I/OAT) for Linux. It includes an in kernel API for offloading memory copies to hardware, a driver for the I/OAT DMA memcpy engine, and changes to the TCP stack to offload copies of received networking data to application space. Changes from last posting: Fixed a page reference leak that happened when offloaded copies were set up but never used for a recv. Fixed the ioatdma self test to handle failures correctly. Serialized DMA ADD and REMOVE events in the networking core with a lock. Added a long comment in dmaengine.c to describe the locking and reference counting being used. Disabled preempt around a use of get_cpu_var. Made tcp_dma_try_early_copy static, it is only used in one file. Made some GFP_ATOMIC allocations GFP_KERNEL where safe to sleep. Made changes to sk_eat_skb, removing some ifdefs in the TCP code. These changes apply to DaveM's net-2.6.17 tree as of commit 68907dad58cd7ef11536e1db6baeb98b20af91b2 ([DCCP]: Use NULL for pointers, comfort sparse.) They are available to pull from git://198.78.49.142/~cleech/linux-2.6 ioat-2.6.17 There are 9 patches in the series: 1) The memcpy offload APIs and class code 2) The Intel I/OAT DMA driver (ioatdma) 3) Core networking code to setup networking as a DMA memcpy client 4) Utility functions for sk_buff to iovec offloaded copy 5) Structure changes needed for TCP receive offload 6) Rename cleanup_rbuf to tcp_cleanup_rbuf 7) Make sk_eat_skb aware of early copied packets 8) Add a sysctl to tune the minimum offloaded I/O size for TCP 9) The main TCP receive offload changes -- Chris Leech I/O Acceleration Technology Software Development LAN Access Division / Digital Enterprise Group - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/