From patchwork Mon Sep 2 08:01:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jose Abreu X-Patchwork-Id: 1156507 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming-netdev@ozlabs.org Delivered-To: patchwork-incoming-netdev@ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=vger.kernel.org (client-ip=209.132.180.67; helo=vger.kernel.org; envelope-from=netdev-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dmarc=pass (p=none dis=none) header.from=synopsys.com Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=synopsys.com header.i=@synopsys.com header.b="HZkq/hvc"; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 46MMym6rhJz9sPL for ; Mon, 2 Sep 2019 18:03:12 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730028AbfIBICS (ORCPT ); Mon, 2 Sep 2019 04:02:18 -0400 Received: from smtprelay-out1.synopsys.com ([198.182.61.142]:51338 "EHLO smtprelay-out1.synopsys.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1729867AbfIBICR (ORCPT ); Mon, 2 Sep 2019 04:02:17 -0400 Received: from mailhost.synopsys.com (mdc-mailhost2.synopsys.com [10.225.0.210]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) by smtprelay-out1.synopsys.com (Postfix) with ESMTPS id 6F2FCC0418; Mon, 2 Sep 2019 08:02:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1567411337; bh=KtB3Uov2hN4nf9kUa8PMFbl3ixv9iikyZQaPSyHRMNw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:In-Reply-To: References:From; b=HZkq/hvcG7zb3ZsmDrcm2MWAEu4O4wftlN9W0W90xfGrMwyBOJrjthcTc3QP5flSU 2gWBUynEPd+sm+nPVWOKhd4PjRcs567J1k1lhK0/dAdtCPN861A3mNtGqrAcFdA91Z ZpwUT2p+0b2ZDyz3Ajng+2QdN1K/BHeGojbpdU3OZok5SEjhRFtNuTatAdiLKhgaAF EPSNzzDhP4oVsvhIbBNcLfgnP77M/49Z7lbVgTyCUU1A8wzKk8oDVn2TlJ2niLHdwu Fei5Ujv1tDJrE8AYISH9NOe5yBi8j1ugSeEjS/hpQ/EcP8hMjjGysLqaV3mk8UzXXy wHTHTfXLp061Q== Received: from de02dwia024.internal.synopsys.com (de02dwia024.internal.synopsys.com [10.225.19.81]) by mailhost.synopsys.com (Postfix) with ESMTP id 1CBFCA0068; Mon, 2 Sep 2019 08:02:15 +0000 (UTC) From: Jose Abreu To: netdev@vger.kernel.org Cc: Joao Pinto , Jose Abreu , Giuseppe Cavallaro , Alexandre Torgue , "David S. Miller" , Maxime Coquelin , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 02/13] net: stmmac: xgmac: Add RBU handling in DMA interrupt Date: Mon, 2 Sep 2019 10:01:44 +0200 Message-Id: X-Mailer: git-send-email 2.7.4 In-Reply-To: References: In-Reply-To: References: Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add the handling of Receive Buffer Unavailable interrupt in the DMA handler of XGMAC cores. Signed-off-by: Jose Abreu --- Cc: Giuseppe Cavallaro Cc: Alexandre Torgue Cc: Jose Abreu Cc: "David S. Miller" Cc: Maxime Coquelin Cc: netdev@vger.kernel.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org --- drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c index 64956465c030..e77eb0ddf9b5 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c @@ -322,6 +322,10 @@ static int dwxgmac2_dma_interrupt(void __iomem *ioaddr, /* ABNORMAL interrupts */ if (unlikely(intr_status & XGMAC_AIS)) { + if (unlikely(intr_status & XGMAC_RBU)) { + x->rx_buf_unav_irq++; + ret |= handle_rx; + } if (unlikely(intr_status & XGMAC_TPS)) { x->tx_process_stopped_irq++; ret |= tx_hard_error;