From patchwork Tue May 19 06:02:33 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Selvin Xavier X-Patchwork-Id: 6429341 Return-Path: X-Original-To: patchwork-linux-rdma@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 74A16C0432 for ; Mon, 18 May 2015 13:37:05 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 8FBFD20435 for ; Mon, 18 May 2015 13:37:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 91FB620434 for ; Mon, 18 May 2015 13:37:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751904AbbERNhC (ORCPT ); Mon, 18 May 2015 09:37:02 -0400 Received: from cmrelayp1.emulex.com ([138.239.112.140]:59193 "EHLO CMRELAYP1.ad.emulex.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1750949AbbERNhB (ORCPT ); Mon, 18 May 2015 09:37:01 -0400 Received: from codebrowse.emulex.com ([10.192.207.129]) by CMRELAYP1.ad.emulex.com with Microsoft SMTPSVC(7.5.7601.17514); Mon, 18 May 2015 06:37:01 -0700 From: Selvin Xavier To: linux-rdma@vger.kernel.org Cc: dledford@redhat.com, Devesh Sharma , Selvin Xavier Subject: [PATCH V2 for-4.1 2/9] RDMA/ocrdma: Report EQ full fatal error Date: Tue, 19 May 2015 11:32:33 +0530 Message-Id: <1432015360-15447-3-git-send-email-selvin.xavier@avagotech.com> X-Mailer: git-send-email 2.2.0 In-Reply-To: <1432015360-15447-1-git-send-email-selvin.xavier@avagotech.com> References: <1432015360-15447-1-git-send-email-selvin.xavier@avagotech.com> X-OriginalArrivalTime: 18 May 2015 13:37:01.0548 (UTC) FILETIME=[B86FDAC0:01D0916F] Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Spam-Status: No, score=-3.7 required=5.0 tests=BAYES_00, DATE_IN_FUTURE_12_24, RCVD_IN_DNSWL_HI,T_RP_MATCHES_RCVD,UNPARSEABLE_RELAY autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Devesh Sharma Detect when Event Queue (EQ) becomes full and print a warning message. Signed-off-by: Devesh Sharma Signed-off-by: Selvin Xavier --- drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 6 ++++++ drivers/infiniband/hw/ocrdma/ocrdma_sli.h | 7 +++++++ 2 files changed, 13 insertions(+) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 3a5ea5af..65759ac 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -933,12 +933,18 @@ static irqreturn_t ocrdma_irq_handler(int irq, void *handle) struct ocrdma_eqe eqe; struct ocrdma_eqe *ptr; u16 cq_id; + u8 mcode; int budget = eq->cq_cnt; do { ptr = ocrdma_get_eqe(eq); eqe = *ptr; ocrdma_le32_to_cpu(&eqe, sizeof(eqe)); + mcode = (eqe.id_valid & OCRDMA_EQE_MAJOR_CODE_MASK) + >> OCRDMA_EQE_MAJOR_CODE_SHIFT; + if (mcode == OCRDMA_MAJOR_CODE_SENTINAL) + pr_err("EQ full on eqid = 0x%x, eqe = 0x%x\n", + eq->q.id, eqe.id_valid); if ((eqe.id_valid & OCRDMA_EQE_VALID_MASK) == 0) break; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h index 243c87c..baf9b8a 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h @@ -1624,12 +1624,19 @@ struct ocrdma_delete_ah_tbl_rsp { enum { OCRDMA_EQE_VALID_SHIFT = 0, OCRDMA_EQE_VALID_MASK = BIT(0), + OCRDMA_EQE_MAJOR_CODE_MASK = 0x0E, + OCRDMA_EQE_MAJOR_CODE_SHIFT = 0x01, OCRDMA_EQE_FOR_CQE_MASK = 0xFFFE, OCRDMA_EQE_RESOURCE_ID_SHIFT = 16, OCRDMA_EQE_RESOURCE_ID_MASK = 0xFFFF << OCRDMA_EQE_RESOURCE_ID_SHIFT, }; +enum major_code { + OCRDMA_MAJOR_CODE_COMPLETION = 0x00, + OCRDMA_MAJOR_CODE_SENTINAL = 0x01 +}; + struct ocrdma_eqe { u32 id_valid; };