Received: by 2002:a05:6a10:5bc5:0:0:0:0 with SMTP id os5csp329656pxb; Fri, 15 Oct 2021 06:24:36 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxqza8LIagsvY3Wt8IW8BBy3Jy5e0vrOfrpaN0BSkwyTOp+OuGD5cglFlTrcyTNtwcuFrwr X-Received: by 2002:a17:903:234f:b0:13e:e6e1:c132 with SMTP id c15-20020a170903234f00b0013ee6e1c132mr11085277plh.57.1634304276535; Fri, 15 Oct 2021 06:24:36 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1634304276; cv=none; d=google.com; s=arc-20160816; b=cTM4xWM4kcmiI5kYNaVeP2gong8fVhA++dSEI6lbpskDDmt8pTPqoI1NpRSl7hwSSX 2gKc9PMCYYF/AclAP86R1P/WdAPnR3bJ0bml6yYe61KEnm9vYT32IaD5IALA5S9UT83k exXX2gm1iNGRjqIa9X38p2+F6h0axbo4/T+1UBHNqODgD+Ugu684p+d4f0aDcwgZtDxh 0H95hWhjkwJazTwDTh/Tp8vdocBO1PBNbMIl1h9TdFs7QM5plrmpDGP+Cp4YzAgoyyNd nrQajTATSZbdxaBmmMlpIHgVIQ62ZgYGch8VSjKG7nwH1MR9h32AKXsa6q1Xx4xOVs8L ukzg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :references:in-reply-to:message-id:date:subject:cc:to:from; bh=pxWfrkHYOO03sMplX78RSTI5tE/jWyPq5IZEE6awK88=; b=DarPbj5Vl/ZUgwM+J2HUlf3NZ4kFIxAa4X3dRzRpujbSWMHRaREYNP3qafrAUNABWh xT6Iuie+CvGkPEt0vziEb5A5HGtY0wkEFgtvxDX1sfo/VrqrOCuRsTl0YvUQ4JLHWfV3 heqPpRntHYsoKLpNxyelhwwDCpne8e5ch0fJUnZdIaLc3ZjbYuUPDvHigLR/v3tBDz7v 1m/4sivYdgXwfC9jT7Hvj3sHz2E7xkgP+3sF4gTNmEPafagk7ZZ+qeh0XX14/r9mtdpM OZ198fNuFaJHQmpU/XEBeDUks0ZKpwcaEMqOCvkB4zFR+R7nd0UXsglM0QlZ7lS+qUos F7RA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Return-Path: Received: from vger.kernel.org (vger.kernel.org. [23.128.96.18]) by mx.google.com with ESMTP id q85si7968412pfc.232.2021.10.15.06.24.23; Fri, 15 Oct 2021 06:24:36 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=alibaba.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235954AbhJOHRk (ORCPT + 99 others); Fri, 15 Oct 2021 03:17:40 -0400 Received: from out4436.biz.mail.alibaba.com ([47.88.44.36]:46959 "EHLO out4436.biz.mail.alibaba.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235998AbhJOHRe (ORCPT ); Fri, 15 Oct 2021 03:17:34 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R171e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04395;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0Us6A078_1634282107; Received: from localhost.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0Us6A078_1634282107) by smtp.aliyun-inc.com(127.0.0.1); Fri, 15 Oct 2021 15:15:17 +0800 From: Wu Zongyong To: wuzongyong@linux.alibaba.com, jasowang@redhat.com, virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, mst@redhat.com Cc: wei.yang1@linux.alibaba.com Subject: [PATCH v5 3/8] vp_vdpa: add vq irq offloading support Date: Fri, 15 Oct 2021 15:14:56 +0800 Message-Id: <5a3bccd4bf8724b4a94caf60fcff1d6b8f8fe09b.1634281805.git.wuzongyong@linux.alibaba.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch implements the get_vq_irq() callback for virtio pci devices to allow irq offloading. Signed-off-by: Wu Zongyong Acked-by: Jason Wang Signed-off-by: Wu Zongyong --- drivers/vdpa/virtio_pci/vp_vdpa.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/vdpa/virtio_pci/vp_vdpa.c b/drivers/vdpa/virtio_pci/vp_vdpa.c index 5bcd00246d2e..e3ff7875e123 100644 --- a/drivers/vdpa/virtio_pci/vp_vdpa.c +++ b/drivers/vdpa/virtio_pci/vp_vdpa.c @@ -76,6 +76,17 @@ static u8 vp_vdpa_get_status(struct vdpa_device *vdpa) return vp_modern_get_status(mdev); } +static int vp_vdpa_get_vq_irq(struct vdpa_device *vdpa, u16 idx) +{ + struct vp_vdpa *vp_vdpa = vdpa_to_vp(vdpa); + int irq = vp_vdpa->vring[idx].irq; + + if (irq == VIRTIO_MSI_NO_VECTOR) + return -EINVAL; + + return irq; +} + static void vp_vdpa_free_irq(struct vp_vdpa *vp_vdpa) { struct virtio_pci_modern_device *mdev = &vp_vdpa->mdev; @@ -427,6 +438,7 @@ static const struct vdpa_config_ops vp_vdpa_ops = { .get_config = vp_vdpa_get_config, .set_config = vp_vdpa_set_config, .set_config_cb = vp_vdpa_set_config_cb, + .get_vq_irq = vp_vdpa_get_vq_irq, }; static void vp_vdpa_free_irq_vectors(void *data) -- 2.31.1