From mboxrd@z Thu Jan 1 00:00:00 1970 From: Francois Romieu Subject: [PATCH net-next #3 0/8] via-rhine rework Date: Fri, 1 May 2015 22:14:37 +0200 Message-ID: Cc: David Miller , Nix , Roger.Luethi.rl@hellgate.ch, Bjarke Istrup Pedersen To: netdev@vger.kernel.org Return-path: Received: from violet.fr.zoreil.com ([92.243.8.30]:51004 "EHLO violet.fr.zoreil.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751482AbbEAUPM (ORCPT ); Fri, 1 May 2015 16:15:12 -0400 Sender: netdev-owner@vger.kernel.org List-ID: The series applies against davem-next as of 9dd3c797496affd699805c8a9d8429ad318c892f ("drivers: net: xgene: fix kbuild warnings"). Patches #1..#4 avoid holes in the receive ring. Patch #5 is a small leftover cleanup for #1..#4. Patches #6 and #7 are fairly simple barrier stuff. Patch #8 closes some SMP transmit races - not that anyone really complained about these but it's a bit hard to handwave that they can be safely ignored. Some testing, especially SMP testing of course, would be welcome. . Changes since #2: - added dma_rmb barrier in vlan related patch 6. - s/wmb/dma_wmb/ in (*new*) patch 7 of 8. - added explicit SMP barriers in (*new*) patch 8 of 8. . Changes since #1: - turned wmb() into dma_wmb() as suggested by davem and Alexander Duyck in patch 1 of 6. - forgot to reset rx_head_desc in rhine_reset_rbufs in patch 4 of 6. - removed rx_head_desc altogether in (*new*) patch 5 of 6 - remoed some vlan receive uglyness in (*new*) patch 6 of 6. Francois Romieu (8): via-rhine: commit receive buffer address before descriptor status update. via-rhine: allocate and map receive buffer in a single transaction via-rhine: gotoize rhine_open error path. via-rhine: forbid holes in the receive descriptor ring. via-rhine: kiss rx_head_desc goodbye. via-rhine: add consistent memory barrier in vlan receive code. via-rhine: dma_wmb transmit barrier. via-rhine: close SMP transmit races. drivers/net/ethernet/via/via-rhine.c | 249 +++++++++++++++++++++++------------ 1 file changed, 162 insertions(+), 87 deletions(-) -- Ueimor