Received: by 2002:a05:6a11:4021:0:0:0:0 with SMTP id ky33csp626712pxb; Tue, 14 Sep 2021 05:27:04 -0700 (PDT) X-Google-Smtp-Source: ABdhPJzmrDcxCDqAetCwFlQ4ap98XFrJbgjLXfGF2QhrAjzX6fCqD/D4a2fr0ImaypeySqTMmcHd X-Received: by 2002:a02:9282:: with SMTP id b2mr14069349jah.0.1631622424722; Tue, 14 Sep 2021 05:27:04 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1631622424; cv=none; d=google.com; s=arc-20160816; b=UXYASS5ylXA5vWBEAQY/nZiQxkYAch4MWTxgiBH40sE++AffbhebKzhayhHwudhMZr HA7TShj+sqe6N9KEpgPFvUyOKxhYOmYi1aSt5SfG5augnUpnxzCGwTdslUNZDv3nE180 YE6zs41+pTpIzJAHM7ZV6+nCeBJhQaMly0QzNthqHtdkuAimhON83qGVimLY2NJcTlUQ nm6/e5Ci8zm7nyXZnFSiezuuIDfpGpWb1Fn7ChscQFBMul3m79bWQPC4C2jYDW6Se5aV 0PE8d+FTWk2mHC7CYtSdSqzAYZqGZhi5gk7MLHNFW/sMe8tgwtTgGoVKV5ZVdzgfb5wh YS2w== 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=cSVEl54ASTV0VRcHs726Rt8e2kyjOTsE8SwLRxn2v7A=; b=oTgkpRp+jUeqUlQ7RTLQQ3on3x0eZp2A1viLCodpaB5LMQDltfrntQFxgsSImBmaoZ 19jU5l4kH8I/R3VogGt/l9RqOEps9gJy2Fdfg5AOhR2ZRBFPBjn4Qon7qpiIUENnrZ09 NoG5MCjlMCqaSnCzzsv0Y7IHfbkwm3ecP7OMo9RK7JckrJScvLMKAUWRNIDztwlSvwS6 g31HVHvzSAl7lDLZ1tXQFTamuSJqb+neSpShxFnrcecdT4eckFvVH2yqZqyhEWi1WUwn F0u1wyMO8dBlc2ZWeE82kxinoX2PWr/FseGMCBTWQzHLvq+5MupoIKAl8GFWXEwkpw4O 4wzQ== 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 v12si3605569ilh.31.2021.09.14.05.26.53; Tue, 14 Sep 2021 05:27:04 -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 S232686AbhINM0r (ORCPT + 99 others); Tue, 14 Sep 2021 08:26:47 -0400 Received: from out30-43.freemail.mail.aliyun.com ([115.124.30.43]:38463 "EHLO out30-43.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232552AbhINM0o (ORCPT ); Tue, 14 Sep 2021 08:26:44 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R101e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04426;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0UoNt7PD_1631622314; Received: from localhost.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0UoNt7PD_1631622314) by smtp.aliyun-inc.com(127.0.0.1); Tue, 14 Sep 2021 20:25:25 +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 v2 3/5] vp_vdpa: add vq irq offloading support Date: Tue, 14 Sep 2021 20:24:50 +0800 Message-Id: <11a491e2200e17319989ff9043b8d58867610197.1631621507.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 --- 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