From mboxrd@z Thu Jan 1 00:00:00 1970 From: Rasesh Mody Subject: [PATCH v4 55/62] net/qede/base: prevent DMAE transactions during recovery Date: Mon, 27 Mar 2017 23:52:25 -0700 Message-ID: <1490683952-24919-56-git-send-email-rasesh.mody@cavium.com> References: <798af029-9a26-9065-350b-48781c1d3c55@intel.com> Mime-Version: 1.0 Content-Type: text/plain Cc: Rasesh Mody To: , Return-path: Received: from mx0b-0016ce01.pphosted.com (mx0b-0016ce01.pphosted.com [67.231.156.153]) by dpdk.org (Postfix) with ESMTP id 7E403D07E for ; Tue, 28 Mar 2017 08:55:21 +0200 (CEST) In-Reply-To: <798af029-9a26-9065-350b-48781c1d3c55@intel.com> List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Prevent DMA engine transactions during recovery phase. Signed-off-by: Rasesh Mody --- drivers/net/qede/base/ecore_hw.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/qede/base/ecore_hw.c b/drivers/net/qede/base/ecore_hw.c index 396edc2..2bcc32d 100644 --- a/drivers/net/qede/base/ecore_hw.c +++ b/drivers/net/qede/base/ecore_hw.c @@ -773,6 +773,18 @@ ecore_dmae_execute_command(struct ecore_hwfn *p_hwfn, enum _ecore_status_t ecore_status = ECORE_SUCCESS; u32 offset = 0; + if (p_hwfn->p_dev->recov_in_prog) { + DP_VERBOSE(p_hwfn, ECORE_MSG_HW, + "Recovery is in progress. Avoid DMAE transaction [{src: addr 0x%lx, type %d}, {dst: addr 0x%lx, type %d}, size %d].\n", + (unsigned long)src_addr, src_type, + (unsigned long)dst_addr, dst_type, + size_in_dwords); + /* Return success to let the flow to be completed successfully + * w/o any error handling. + */ + return ECORE_SUCCESS; + } + ecore_dmae_opcode(p_hwfn, (src_type == ECORE_DMAE_ADDRESS_GRC), (dst_type == ECORE_DMAE_ADDRESS_GRC), p_params); -- 1.7.10.3