From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net 0/4][pull request] Intel Wired LAN Driver Updates Date: Tue, 5 Mar 2013 01:48:33 -0800 Message-ID: <1362476917-5189-1-git-send-email-jeffrey.t.kirsher@intel.com> Cc: Jeff Kirsher , netdev@vger.kernel.org, gospo@redhat.com, sassmann@redhat.com To: davem@davemloft.net Return-path: Received: from mga11.intel.com ([192.55.52.93]:40681 "EHLO mga11.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755464Ab3CEJsl (ORCPT ); Tue, 5 Mar 2013 04:48:41 -0500 Sender: netdev-owner@vger.kernel.org List-ID: This series contains fixes to e1000e and igb. The e1000e fix resolves an issue at 1000Mbps link speed, where one of the MAC's internal clocks can be stopped for up to 4us when entering K1 (a power mode of the MAC-PHY interconnect). If the MAC is waiting for completion indications for 2 DMA write requests into Host memory (e.g. descriptor writeback or Rx packet writing) and the indications occur while the clock is stopped, both indications will be missed by the MAC causing the MAC to wait for the completion indications and be unable to generate further DMA write requests. This results in an apparent hardware hang. The patch works-around the issue by disabling the de-assertion of the clock request when 1000Mbps link is acquired (K1 must be disabled while doing this). The igb fix to drop BUILD_BUG_ON check from igb_build_rx_buffer resolves a build error on s390 devices. The igb driver was throwing a build error due to the fact that a frame built using build_skb would be larger than 2K. Since this is not likely to change at any point in the future we are better off just dropping the check since we already had a check in igb_set_rx_buffer_len that will just disable the usage of build_skb anyway. The igb fix for i210 link setup changes the setup copper link function to use a switch statement, so that the appropriate setup link function is called for the given PHY types. Lastly, the igb fix for a lockdep issue in igb_get_i2c_client resolves the issue by re-factoring the initialization and usage of the i2c_client. The following are changes since commit aab2b4bf224ef8358d262f95b568b8ad0cecf0a0: tcp: fix double-counted receiver RTT when leaving receiver fast path and are available in the git repository at: git://git.kernel.org/pub/scm/linux/kernel/git/jkirsher/net master Alexander Duyck (1): igb: Drop BUILD_BUG_ON check from igb_build_rx_buffer Bruce Allan (1): e1000e: workaround DMA unit hang on I218 Carolyn Wyborny (2): igb: Fix link setup for I210 devices igb: Fix for lockdep issue in igb_get_i2c_client drivers/net/ethernet/intel/e1000e/ich8lan.c | 71 +++++++++++++++++++++++++- drivers/net/ethernet/intel/e1000e/ich8lan.h | 2 + drivers/net/ethernet/intel/e1000e/regs.h | 1 + drivers/net/ethernet/intel/igb/e1000_82575.c | 11 ++-- drivers/net/ethernet/intel/igb/igb.h | 2 +- drivers/net/ethernet/intel/igb/igb_hwmon.c | 14 +++++ drivers/net/ethernet/intel/igb/igb_main.c | 76 +--------------------------- 7 files changed, 98 insertions(+), 79 deletions(-) -- 1.7.11.7