Received: by 2002:a05:6a11:4021:0:0:0:0 with SMTP id ky33csp322745pxb; Tue, 28 Sep 2021 23:22:24 -0700 (PDT) X-Google-Smtp-Source: ABdhPJyDXYLYo41ZH0JAju8IClQZnOfVrYQYvj9qBaXNDfnJQQaxO/V+1g2rMqWu0XL1aERpBz+Z X-Received: by 2002:aa7:95a1:0:b0:43d:dbc5:c0af with SMTP id a1-20020aa795a1000000b0043ddbc5c0afmr9217238pfk.37.1632896544526; Tue, 28 Sep 2021 23:22:24 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1632896544; cv=none; d=google.com; s=arc-20160816; b=R+pWVr8JpstJ+wAVsGxgm0mHkQGOcamjKUeifF1oWH91Ji45BJgYXt7SMu3NfVQr25 0PgIK5vqT4hc+fyYLArcUrM5VvKSpnXNRAjRmOMvbUtdP7/hgSdw3/zzvAnz49dyes/n xF9NEMjwJzntAP9Vo9wou12IQFSA7HNjGpMmC/tJK92G7BgsM17cY7dl1LxSCSPhOvKe pyJzsqoiy0nhUqeKoH4ZGgdh+LV4tLD8oC8CplbS45Tw69Vgc0jzKpSas6yaCo8mikWv uV22NBAdxdV8v29JzexLgrNcyMUgej1oJ/2x2KSG4LPOPRTAzLX1+Zavw5L2jWE93fy3 CPLQ== 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=pnzM5JTKhHY6XSPpzOQhBNpG4rz9RI4qQyyd6EacGCY=; b=kENmeHig5FA/eGtfi0NwfeiR8G+ebF38JjEdTcPAMwBicCctetNG+Th9M4Eof91dpR w/LSV3FYUqrtn9zOD7XHofqHn01yJgW72qG9PsClTwQtw22LgL0JLfmuGIkZsW2/zzt4 cycOrxY/KFN7d0aZOxAhu2vnN6fl4QrF3gFER6iq3l6tkqpycZV7irEwRB7TrQ9wgPiq eMde1doZEQ4K2AltG2HxffFiiGn5C9Rpmll5UHoq4c7dlP0lYp+b1A/dCiwOmiYJomiM R1WofK5elcZdB+R44QnWlREyI29jgRhlOdti/Kj0cYBNInolSRs7/kkg3KiXP/jcZEoU i99g== 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 j3si1510420plh.112.2021.09.28.23.22.11; Tue, 28 Sep 2021 23:22:24 -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 S244343AbhI2GOA (ORCPT + 99 others); Wed, 29 Sep 2021 02:14:00 -0400 Received: from out30-132.freemail.mail.aliyun.com ([115.124.30.132]:45224 "EHLO out30-132.freemail.mail.aliyun.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S244269AbhI2GN4 (ORCPT ); Wed, 29 Sep 2021 02:13:56 -0400 X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R141e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=e01e04407;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=6;SR=0;TI=SMTPD_---0Uq.GBNB_1632895927; Received: from localhost.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0Uq.GBNB_1632895927) by smtp.aliyun-inc.com(127.0.0.1); Wed, 29 Sep 2021 14:12:15 +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 v4 3/7] vp_vdpa: add vq irq offloading support Date: Wed, 29 Sep 2021 14:11:42 +0800 Message-Id: <118c8e66e943dc35bce5a572a4fb23ab8d81b722.1632882380.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 --- 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