From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.kernel.org ([198.145.29.99]:46878 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727734AbeJQBET (ORCPT ); Tue, 16 Oct 2018 21:04:19 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chris Clayton , "Maciej S. Szmigiero" , Heiner Kallweit , "David S. Miller" Subject: [PATCH 4.18 061/135] r8169: set RX_MULTI_EN bit in RxConfig for 8168F-family chips Date: Tue, 16 Oct 2018 19:04:51 +0200 Message-Id: <20181016170518.720362924@linuxfoundation.org> In-Reply-To: <20181016170515.447235311@linuxfoundation.org> References: <20181016170515.447235311@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: 4.18-stable review patch. If anyone has any objections, please let me know. ------------------ From: "Maciej S. Szmigiero" [ Upstream commit 511cfd580f23b0e0fcd5659931ef14c6e2c062b0 ] It has been reported that since commit 05212ba8132b42 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices") at least RTL_GIGA_MAC_VER_38 NICs work erratically after a resume from suspend. The problem has been traced to a missing RX_MULTI_EN bit in the RxConfig register. We already set this bit for RTL_GIGA_MAC_VER_35 NICs of the same 8168F chip family so let's do it also for its other siblings: RTL_GIGA_MAC_VER_36 and RTL_GIGA_MAC_VER_38. Curiously, the NIC seems to work fine after a system boot without having this bit set as long as the system isn't suspended and resumed. Fixes: 05212ba8132b42 ("r8169: set RxConfig after tx/rx is enabled for RTL8169sb/8110sb devices") Reported-by: Chris Clayton Signed-off-by: Maciej S. Szmigiero Reviewed-by: Heiner Kallweit Tested-by: Chris Clayton Signed-off-by: David S. Miller Signed-off-by: Greg Kroah-Hartman --- drivers/net/ethernet/realtek/r8169.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -4788,8 +4788,8 @@ static void rtl_init_rxcfg(struct rtl816 RTL_W32(tp, RxConfig, RX_FIFO_THRESH | RX_DMA_BURST); break; case RTL_GIGA_MAC_VER_18 ... RTL_GIGA_MAC_VER_24: - case RTL_GIGA_MAC_VER_34: - case RTL_GIGA_MAC_VER_35: + case RTL_GIGA_MAC_VER_34 ... RTL_GIGA_MAC_VER_36: + case RTL_GIGA_MAC_VER_38: RTL_W32(tp, RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST); break; case RTL_GIGA_MAC_VER_40 ... RTL_GIGA_MAC_VER_51: