From mboxrd@z Thu Jan 1 00:00:00 1970 From: David L Stevens Subject: [PATCHv6 net-next 0/3] sunvnet: add jumbo frames support Date: Wed, 17 Sep 2014 20:10:06 -0400 Message-ID: <541A22DE.4020700@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Cc: netdev@vger.kernel.org To: David Miller Return-path: Received: from aserp1040.oracle.com ([141.146.126.69]:24393 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751750AbaIRAKL (ORCPT ); Wed, 17 Sep 2014 20:10:11 -0400 Sender: netdev-owner@vger.kernel.org List-ID: This patch set updates the sunvnet driver to version 1.6 of the VIO protocol to support per-port exchange of MTU information and allow non-standard MTU sizes, including jumbo frames. Using large MTUs shows a > 4X throughput improvement Linux-Solaris and > 8X throughput improvement Linux-Linux. Changes from v5: - fixed comment per Sowmini Varadhan Changes from v4: - changed VNET_MAXPACKET per David Laight - added cookies to support non-contiguous buffers of max size Changes from v3: - added version functions per Dave Miller - moved rmtu to vnet_port per Dave Miller - explicitly set options bits and capability flags to 0 per Raghuram Kothakota Changes from v2: - make checkpatch clean Changes from v1: - fix brace formatting per Dave Miller David L Stevens (3): sunvnet: upgrade to VIO protocol version 1.6 sunvnet: allow admin to set sunvnet MTU sunvnet: generate ICMP PTMUD messages for smaller port MTUs arch/sparc/include/asm/vio.h | 44 ++++++++++- arch/sparc/kernel/ldc.c | 2 +- arch/sparc/kernel/viohs.c | 14 +++- drivers/net/ethernet/sun/sunvnet.c | 146 +++++++++++++++++++++++++++++++----- drivers/net/ethernet/sun/sunvnet.h | 7 ++- 5 files changed, 187 insertions(+), 26 deletions(-)