From: Jason Wang <jasowang@redhat.com> To: mst@redhat.com, jasowang@redhat.com Cc: kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, rob.miller@broadcom.com, lingshan.zhu@intel.com, eperezma@redhat.com, lulu@redhat.com, shahafs@mellanox.com, hanand@xilinx.com, mhabets@solarflare.com, gdawar@xilinx.com, saugatm@xilinx.com, vmireyno@marvell.com, zhangweining@ruijie.com.cn, eli@mellanox.com Subject: [PATCH 3/6] vdpa: introduce get_vq_notification method Date: Fri, 29 May 2020 16:03:00 +0800 [thread overview] Message-ID: <20200529080303.15449-4-jasowang@redhat.com> (raw) In-Reply-To: <20200529080303.15449-1-jasowang@redhat.com> This patch introduces a new method in the vdpa_config_ops which reports the physical address and the size of the doorbell for a specific virtqueue. This will be used by the future patches that maps doorbell to userspace. Signed-off-by: Jason Wang <jasowang@redhat.com> --- include/linux/vdpa.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 5453af87a33e..239db794357c 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -17,6 +17,16 @@ struct vdpa_callback { void *private; }; +/** + * vDPA notification area + * @addr: base address of the notification area + * @size: size of the notification area + */ +struct vdpa_notification_area { + resource_size_t addr; + resource_size_t size; +}; + /** * vDPA device - representation of a vDPA device * @dev: underlying device @@ -73,6 +83,10 @@ struct vdpa_device { * @vdev: vdpa device * @idx: virtqueue index * Returns virtqueue state (last_avail_idx) + * @get_vq_notification: Get the notification area for a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * Returns the notifcation area * @get_vq_align: Get the virtqueue align requirement * for the device * @vdev: vdpa device @@ -162,6 +176,8 @@ struct vdpa_config_ops { bool (*get_vq_ready)(struct vdpa_device *vdev, u16 idx); int (*set_vq_state)(struct vdpa_device *vdev, u16 idx, u64 state); u64 (*get_vq_state)(struct vdpa_device *vdev, u16 idx); + struct vdpa_notification_area + (*get_vq_notification)(struct vdpa_device *vdev, u16 idx); /* Device ops */ u32 (*get_vq_align)(struct vdpa_device *vdev); -- 2.20.1
WARNING: multiple messages have this Message-ID (diff)
From: Jason Wang <jasowang@redhat.com> To: mst@redhat.com, jasowang@redhat.com Cc: shahafs@mellanox.com, lulu@redhat.com, kvm@vger.kernel.org, saugatm@xilinx.com, netdev@vger.kernel.org, mhabets@solarflare.com, vmireyno@marvell.com, linux-kernel@vger.kernel.org, gdawar@xilinx.com, virtualization@lists.linux-foundation.org, eperezma@redhat.com, hanand@xilinx.com, zhangweining@ruijie.com.cn, eli@mellanox.com, lingshan.zhu@intel.com, rob.miller@broadcom.com Subject: [PATCH 3/6] vdpa: introduce get_vq_notification method Date: Fri, 29 May 2020 16:03:00 +0800 [thread overview] Message-ID: <20200529080303.15449-4-jasowang@redhat.com> (raw) In-Reply-To: <20200529080303.15449-1-jasowang@redhat.com> This patch introduces a new method in the vdpa_config_ops which reports the physical address and the size of the doorbell for a specific virtqueue. This will be used by the future patches that maps doorbell to userspace. Signed-off-by: Jason Wang <jasowang@redhat.com> --- include/linux/vdpa.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index 5453af87a33e..239db794357c 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -17,6 +17,16 @@ struct vdpa_callback { void *private; }; +/** + * vDPA notification area + * @addr: base address of the notification area + * @size: size of the notification area + */ +struct vdpa_notification_area { + resource_size_t addr; + resource_size_t size; +}; + /** * vDPA device - representation of a vDPA device * @dev: underlying device @@ -73,6 +83,10 @@ struct vdpa_device { * @vdev: vdpa device * @idx: virtqueue index * Returns virtqueue state (last_avail_idx) + * @get_vq_notification: Get the notification area for a virtqueue + * @vdev: vdpa device + * @idx: virtqueue index + * Returns the notifcation area * @get_vq_align: Get the virtqueue align requirement * for the device * @vdev: vdpa device @@ -162,6 +176,8 @@ struct vdpa_config_ops { bool (*get_vq_ready)(struct vdpa_device *vdev, u16 idx); int (*set_vq_state)(struct vdpa_device *vdev, u16 idx, u64 state); u64 (*get_vq_state)(struct vdpa_device *vdev, u16 idx); + struct vdpa_notification_area + (*get_vq_notification)(struct vdpa_device *vdev, u16 idx); /* Device ops */ u32 (*get_vq_align)(struct vdpa_device *vdev); -- 2.20.1
next prev parent reply other threads:[~2020-05-29 8:03 UTC|newest] Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-29 8:02 [PATCH 0/6] vDPA: doorbell mapping Jason Wang 2020-05-29 8:02 ` Jason Wang 2020-05-29 8:02 ` [PATCH 1/6] vhost: allow device that does not depend on vhost worker Jason Wang 2020-05-29 8:02 ` Jason Wang 2020-06-02 5:01 ` Michael S. Tsirkin 2020-06-02 7:04 ` Jason Wang 2020-06-02 7:04 ` Jason Wang 2020-05-29 8:02 ` [PATCH 2/6] vhost: use mmgrab() instead of mmget() for non worker device Jason Wang 2020-05-29 8:03 ` Jason Wang [this message] 2020-05-29 8:03 ` [PATCH 3/6] vdpa: introduce get_vq_notification method Jason Wang 2020-05-29 8:03 ` [PATCH 4/6] vhost_vdpa: support doorbell mapping via mmap Jason Wang 2020-05-29 9:16 ` Mika Penttilä 2020-05-29 9:24 ` Jason Wang 2020-05-29 18:30 ` Rob Miller 2020-05-29 18:30 ` [virtio-dev] " Rob Miller 2020-06-02 2:04 ` Jason Wang 2020-06-02 2:04 ` Jason Wang 2020-06-02 2:04 ` Jason Wang 2020-06-01 19:22 ` kbuild test robot 2020-06-01 19:22 ` kbuild test robot 2020-06-01 19:22 ` kbuild test robot 2020-06-02 4:56 ` Michael S. Tsirkin 2020-06-02 4:56 ` Michael S. Tsirkin 2020-06-02 6:49 ` Jason Wang 2020-06-02 6:49 ` Jason Wang 2020-06-02 13:31 ` Michael S. Tsirkin 2020-06-02 13:31 ` Michael S. Tsirkin 2020-06-03 4:18 ` Jason Wang 2020-06-03 4:18 ` Jason Wang 2020-06-03 6:34 ` Michael S. Tsirkin 2020-06-03 6:34 ` Michael S. Tsirkin 2020-06-03 6:37 ` Jason Wang 2020-06-03 6:37 ` Jason Wang 2020-05-29 8:03 ` [PATCH 5/6] vdpa: introduce virtio pci driver Jason Wang 2020-05-29 8:03 ` Jason Wang 2020-06-02 5:08 ` Michael S. Tsirkin 2020-06-02 7:08 ` Jason Wang 2020-06-05 8:54 ` Jason Wang 2020-06-05 8:54 ` Jason Wang 2020-06-07 13:51 ` Michael S. Tsirkin 2020-06-07 13:51 ` Michael S. Tsirkin 2020-06-08 3:32 ` Jason Wang 2020-06-08 3:32 ` Jason Wang 2020-06-08 6:32 ` Michael S. Tsirkin 2020-06-08 9:18 ` Jason Wang 2020-06-08 9:31 ` Michael S. Tsirkin 2020-06-08 9:43 ` Jason Wang 2020-06-08 9:45 ` Michael S. Tsirkin 2020-06-08 9:45 ` Michael S. Tsirkin 2020-06-08 9:46 ` Jason Wang 2020-06-08 9:54 ` Michael S. Tsirkin 2020-06-08 10:07 ` Jason Wang 2020-06-08 13:29 ` Michael S. Tsirkin 2020-06-08 13:29 ` Michael S. Tsirkin 2020-06-09 5:55 ` Jason Wang 2020-06-02 5:09 ` Michael S. Tsirkin 2020-06-02 7:12 ` Jason Wang 2020-06-04 18:50 ` Michael S. Tsirkin 2020-05-29 8:03 ` [PATCH 6/6] vdpa: vp_vdpa: report doorbell location Jason Wang 2020-05-29 8:03 ` Jason Wang
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