From patchwork Mon Dec 5 06:38:32 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Selvin Xavier X-Patchwork-Id: 9460397 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 2E3E16022E for ; Mon, 5 Dec 2016 06:46:07 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1A6A526224 for ; Mon, 5 Dec 2016 06:46:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0F842262F2; Mon, 5 Dec 2016 06:46:07 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.8 required=2.0 tests=BAYES_00,DKIM_SIGNED, RCVD_IN_DNSWL_HI,T_DKIM_INVALID autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D2E8726242 for ; Mon, 5 Dec 2016 06:46:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751496AbcLEGqC (ORCPT ); Mon, 5 Dec 2016 01:46:02 -0500 Received: from lpdvsmtp01.broadcom.com ([192.19.211.62]:33805 "EHLO relay.smtp.broadcom.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751059AbcLEGpi (ORCPT ); Mon, 5 Dec 2016 01:45:38 -0500 Received: from dhcp-10-192-206-197.iig.avagotech.net (dhcp-10-192-206-132.iig.avagotech.net [10.192.206.132]) by relay.smtp.broadcom.com (Postfix) with ESMTP id 8CB2928054C; Sun, 4 Dec 2016 22:39:00 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.10.3 relay.smtp.broadcom.com 8CB2928054C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=broadcom.com; s=dkimrelay; t=1480919941; bh=LaKctl3+gFyNQk6Xz0golqhAMye4QiwEpgEdaNxXHsk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=QSNywAuRJEiYZnsh5nH0HWr9QeEoE0clH36/aWY3q/rZHp31/mfc/Q30UO0V/ZX7n yI7ezNlUyG9qlU5kxzbs1COzFYoXJdHqMHSz8dYMeQhDEE2xDNFXbZf/KniFOXJZwu wF31LCUoLWuJ1Sw966nyOX4rhCYLQXgE3NNu8kOc= From: Selvin Xavier To: dledford@redhat.com Cc: linux-rdma@vger.kernel.org, Selvin Xavier , Eddie Wai , Devesh Sharma , Somnath Kotur , Sriharsha Basavapatna Subject: [PATCH 28/28] bnxt_re: Add QP event handling Date: Sun, 4 Dec 2016 22:38:32 -0800 Message-Id: <1480919912-1079-29-git-send-email-selvin.xavier@broadcom.com> X-Mailer: git-send-email 2.5.5 In-Reply-To: <1480919912-1079-1-git-send-email-selvin.xavier@broadcom.com> References: <1480919912-1079-1-git-send-email-selvin.xavier@broadcom.com> Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Implements callback handler for processing affiliated Async events of a QP. This patch also implements the control path command completion handling. Signed-off-by: Eddie Wai Signed-off-by: Devesh Sharma Signed-off-by: Somnath Kotur Signed-off-by: Sriharsha Basavapatna Signed-off-by: Selvin Xavier --- drivers/infiniband/hw/bnxtre/bnxt_qplib_rcfw.c | 49 ++++++++++++++++++++++++++ 1 file changed, 49 insertions(+) diff --git a/drivers/infiniband/hw/bnxtre/bnxt_qplib_rcfw.c b/drivers/infiniband/hw/bnxtre/bnxt_qplib_rcfw.c index 64077ae..6cbe472 100644 --- a/drivers/infiniband/hw/bnxtre/bnxt_qplib_rcfw.c +++ b/drivers/infiniband/hw/bnxtre/bnxt_qplib_rcfw.c @@ -221,6 +221,46 @@ static int bnxt_qplib_process_func_event(struct bnxt_qplib_rcfw *rcfw, return 0; } +static int bnxt_qplib_process_qp_event(struct bnxt_qplib_rcfw *rcfw, + struct creq_qp_event *qp_event) +{ + struct bnxt_qplib_crsq *crsq = &rcfw->crsq; + struct bnxt_qplib_hwq *cmdq = &rcfw->cmdq; + struct bnxt_qplib_crsqe *crsqe; + u16 cbit, cookie, blocked = 0; + unsigned long flags; + u32 sw_cons; + + switch (qp_event->event) { + case CREQ_QP_EVENT_EVENT_QP_ERROR_NOTIFICATION: + break; + default: + { + /* Command Response */ + spin_lock_irqsave(&cmdq->lock, flags); + sw_cons = HWQ_CMP(crsq->cons, crsq); + crsqe = &crsq->crsq[sw_cons]; + crsq->cons++; + memcpy(&crsqe->qp_event, qp_event, sizeof(crsqe->qp_event)); + + cookie = le16_to_cpu(crsqe->qp_event.cookie); + blocked = cookie & RCFW_CMD_IS_BLOCKING; + cookie &= RCFW_MAX_COOKIE_VALUE; + cbit = cookie % RCFW_MAX_OUTSTANDING_CMD; + if (!test_and_clear_bit(cbit, rcfw->cmdq_bitmap)) + dev_warn(&rcfw->pdev->dev, + "QPLIB: CMD bit %d was not requested", cbit); + + cmdq->cons += crsqe->req_size; + spin_unlock_irqrestore(&cmdq->lock, flags); + if (!blocked) + wake_up(&rcfw->waitq); + break; + } + } + return 0; +} + /* SP - CREQ Completion handlers */ static void bnxt_qplib_service_creq(unsigned long data) { @@ -244,6 +284,15 @@ static void bnxt_qplib_service_creq(unsigned long data) type = creqe->type & CREQ_BASE_TYPE_MASK; switch (type) { case CREQ_BASE_TYPE_QP_EVENT: + if (!bnxt_qplib_process_qp_event + (rcfw, (struct creq_qp_event *)creqe)) + rcfw->creq_qp_event_processed++; + else { + dev_warn(&rcfw->pdev->dev, "QPLIB: crsqe with"); + dev_warn(&rcfw->pdev->dev, + "QPLIB: type = 0x%x not handled", + type); + } break; case CREQ_BASE_TYPE_FUNC_EVENT: if (!bnxt_qplib_process_func_event