From patchwork Tue Jan 7 09:50:53 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anumula Murali Mohan Reddy X-Patchwork-Id: 13928577 Received: from stargate.chelsio.com (stargate.chelsio.com [12.32.117.8]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 86A9E1E3DE5 for ; Tue, 7 Jan 2025 09:47:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=12.32.117.8 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736243278; cv=none; b=EUKqV1sxrjydmTsC6DlgD0j1vqfijXfeaqq5+DfqJg11XKK4KJSIejgEjOiVeUAxtOFsRYADaDMzvjxFPp8wuEKs60XzmrHaYWUiUC2EB+OIyb8t4Tgrn9Z4ktlpAirV4+l+28Ua+I+n7pFyT3jyUSLQXGl7GyP6Bilga48ejRU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736243278; c=relaxed/simple; bh=mNm4MUiVoC6M1Wk/+e7+RC4/uAGG7Zn6tLTZFe46hxA=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=mXu+OTVVHuR7FSVS5Dx6Uv5kW0PY7yksvmCHRqthBr+ak5u2r4oQ7Q1KGH+z0QQhJvd6I3g+SvLWlr8o8PCn5TWBnTeQ7mm49dyG9LK57DtmreTSEOLWGUPxHUI4UOER98gyq12RdjcNywNglfHPZjRhlTDJoAn+Vk9sXxY4YhI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=chelsio.com; spf=pass smtp.mailfrom=chelsio.com; arc=none smtp.client-ip=12.32.117.8 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=chelsio.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chelsio.com Received: from beagle5.blr.asicdesigners.com (beagle5.blr.asicdesigners.com [10.193.80.119]) by stargate.chelsio.com (8.14.7/8.14.7) with ESMTP id 5079lfm2008941; Tue, 7 Jan 2025 01:47:42 -0800 From: Anumula Murali Mohan Reddy To: jgg@nvidia.com, leonro@nvidia.com Cc: linux-rdma@vger.kernel.org, bharat@chelsio.com, Anumula Murali Mohan Reddy Subject: [PATCH for-rc v2] RDMA/cxgb4: notify rdma stack for IB_EVENT_QP_LAST_WQE_REACHED event Date: Tue, 7 Jan 2025 15:20:53 +0530 Message-Id: <20250107095053.81007-1-anumula@chelsio.com> X-Mailer: git-send-email 2.39.3 Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch sends IB_EVENT_QP_LAST_WQE_REACHED event on a QP that is in error state and associated with an SRQ. This behaviour is incorporated in flush_qp() which is called when QP transitions to error state. Supports SRQ drain functionality added by commit 844bc12e6da3 ("IB/core: add support for draining Shared receive queues") Fixes: 844bc12e6da3 ("IB/core: add support for draining Shared receive queues") Signed-off-by: Anumula Murali Mohan Reddy Signed-off-by: Potnuri Bharat Teja --- Changes since v1: Addressed previous review comments --- drivers/infiniband/hw/cxgb4/qp.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 7b5c4522b426..10f61bc16dd5 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -1599,6 +1599,7 @@ static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp, int count; int rq_flushed = 0, sq_flushed; unsigned long flag; + struct ib_event ev; pr_debug("qhp %p rchp %p schp %p\n", qhp, rchp, schp); @@ -1607,6 +1608,14 @@ static void __flush_qp(struct c4iw_qp *qhp, struct c4iw_cq *rchp, if (schp != rchp) spin_lock(&schp->lock); spin_lock(&qhp->lock); + if (qhp->srq) { + if (qhp->attr.state == C4IW_QP_STATE_ERROR && qhp->ibqp.event_handler) { + ev.device = qhp->ibqp.device; + ev.element.qp = &qhp->ibqp; + ev.event = IB_EVENT_QP_LAST_WQE_REACHED; + qhp->ibqp.event_handler(&ev, qhp->ibqp.qp_context); + } + } if (qhp->wq.flushed) { spin_unlock(&qhp->lock);