From patchwork Mon Sep 13 13:11:25 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 510521 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3526C433EF for ; Mon, 13 Sep 2021 14:24:26 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DEA6160F26 for ; Mon, 13 Sep 2021 14:24:26 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344881AbhIMOZe (ORCPT ); Mon, 13 Sep 2021 10:25:34 -0400 Received: from mail.kernel.org ([198.145.29.99]:45372 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1345327AbhIMOWr (ORCPT ); Mon, 13 Sep 2021 10:22:47 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 3AAFE61130; Mon, 13 Sep 2021 13:47:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1631540857; bh=QGnjh3XPIh8bYFm4lHeIH8Vrts5kHz0cIN/fyO2v4Zk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=pb4y7qs3eJlUnomy3jAvwMYbuoXpT9gSxspjLtFnyRmO4pVKPA0W00CWwdhN+6DnE JD+AeUwvRgVIH5bIkXU8K0CZq69aFz0dxEy5b0kK1td4O83ZNmaX6jFd9FBrlA7tF7 9vkY3Z93PYN1xktFDpi3kan1fTURIk3Q9jqnBm7c= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Giovanni Cabiddu , Marco Chiappero , Fiona Trahe , Herbert Xu , Sasha Levin Subject: [PATCH 5.14 031/334] crypto: qat - handle both source of interrupt in VF ISR Date: Mon, 13 Sep 2021 15:11:25 +0200 Message-Id: <20210913131114.471950810@linuxfoundation.org> X-Mailer: git-send-email 2.33.0 In-Reply-To: <20210913131113.390368911@linuxfoundation.org> References: <20210913131113.390368911@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Giovanni Cabiddu [ Upstream commit 0a73c762e1eee33a5e5dc0e3488f1b7cd17249b3 ] The top half of the VF drivers handled only a source at the time. If an interrupt for PF2VF and bundle occurred at the same time, the ISR scheduled only the bottom half for PF2VF. This patch fixes the VF top half so that if both sources of interrupt trigger at the same time, both bottom halves are scheduled. This patch is based on earlier work done by Conor McLoughlin. Signed-off-by: Giovanni Cabiddu Reviewed-by: Marco Chiappero Reviewed-by: Fiona Trahe Signed-off-by: Herbert Xu Signed-off-by: Sasha Levin --- drivers/crypto/qat/qat_common/adf_vf_isr.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/crypto/qat/qat_common/adf_vf_isr.c b/drivers/crypto/qat/qat_common/adf_vf_isr.c index 888388acb6bd..3e4f64d248f9 100644 --- a/drivers/crypto/qat/qat_common/adf_vf_isr.c +++ b/drivers/crypto/qat/qat_common/adf_vf_isr.c @@ -160,6 +160,7 @@ static irqreturn_t adf_isr(int irq, void *privdata) struct adf_bar *pmisc = &GET_BARS(accel_dev)[hw_data->get_misc_bar_id(hw_data)]; void __iomem *pmisc_bar_addr = pmisc->virt_addr; + bool handled = false; u32 v_int; /* Read VF INT source CSR to determine the source of VF interrupt */ @@ -172,7 +173,7 @@ static irqreturn_t adf_isr(int irq, void *privdata) /* Schedule tasklet to handle interrupt BH */ tasklet_hi_schedule(&accel_dev->vf.pf2vf_bh_tasklet); - return IRQ_HANDLED; + handled = true; } /* Check bundle interrupt */ @@ -184,10 +185,10 @@ static irqreturn_t adf_isr(int irq, void *privdata) csr_ops->write_csr_int_flag_and_col(bank->csr_addr, bank->bank_number, 0); tasklet_hi_schedule(&bank->resp_handler); - return IRQ_HANDLED; + handled = true; } - return IRQ_NONE; + return handled ? IRQ_HANDLED : IRQ_NONE; } static int adf_request_msi_irq(struct adf_accel_dev *accel_dev)