From: Jason Wang <jasowang@redhat.com> To: mst@redhat.com, jasowang@redhat.com Cc: eperezma@redhat.com, kvm@vger.kernel.org, virtualization@lists.linux-foundation.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, lulu@redhat.com, eli@mellanox.com, lingshan.zhu@intel.com, rob.miller@broadcom.com, stefanha@redhat.com, sgarzare@redhat.com Subject: [PATCH 14/21] vhost-vdpa: uAPI to get virtqueue group id Date: Wed, 16 Dec 2020 14:48:11 +0800 [thread overview] Message-ID: <20201216064818.48239-15-jasowang@redhat.com> (raw) In-Reply-To: <20201216064818.48239-1-jasowang@redhat.com> Follows the support for virtqueue group in vDPA. This patches introduces uAPI to get the virtqueue group ID for a specific virtqueue in vhost-vdpa. Signed-off-by: Jason Wang <jasowang@redhat.com> --- drivers/vhost/vdpa.c | 8 ++++++++ include/uapi/linux/vhost.h | 8 ++++++++ 2 files changed, 16 insertions(+) diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index bff8aa214f78..e7023abda12c 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -442,6 +442,14 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, return -EFAULT; ops->set_vq_ready(vdpa, idx, s.num); return 0; + case VHOST_VDPA_GET_VRING_GROUP: + s.index = idx; + s.num = ops->get_vq_group(vdpa, idx); + if (s.num >= vdpa->ngroups) + return -EIO; + else if (copy_to_user(argp, &s, sizeof s)) + return -EFAULT; + return 0; case VHOST_GET_VRING_BASE: r = ops->get_vq_state(v->vdpa, idx, &vq_state); if (r) diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index 8762911a3cb8..99de06476fdc 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -150,4 +150,12 @@ /* Get the number of address spaces. */ #define VHOST_VDPA_GET_AS_NUM _IOR(VHOST_VIRTIO, 0x7A, unsigned int) + +/* Get the group for a virtqueue: read index, write group in num, + * The virtqueue index is stored in the index field of + * vhost_vring_state. The group for this specific virtqueue is + * returned via num field of vhost_vring_state. + */ +#define VHOST_VDPA_GET_VRING_GROUP _IOWR(VHOST_VIRTIO, 0x7B, \ + struct vhost_vring_state) #endif -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Jason Wang <jasowang@redhat.com> To: mst@redhat.com, jasowang@redhat.com Cc: kvm@vger.kernel.org, lulu@redhat.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, eperezma@redhat.com, stefanha@redhat.com, eli@mellanox.com, lingshan.zhu@intel.com, rob.miller@broadcom.com Subject: [PATCH 14/21] vhost-vdpa: uAPI to get virtqueue group id Date: Wed, 16 Dec 2020 14:48:11 +0800 [thread overview] Message-ID: <20201216064818.48239-15-jasowang@redhat.com> (raw) In-Reply-To: <20201216064818.48239-1-jasowang@redhat.com> Follows the support for virtqueue group in vDPA. This patches introduces uAPI to get the virtqueue group ID for a specific virtqueue in vhost-vdpa. Signed-off-by: Jason Wang <jasowang@redhat.com> --- drivers/vhost/vdpa.c | 8 ++++++++ include/uapi/linux/vhost.h | 8 ++++++++ 2 files changed, 16 insertions(+) diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index bff8aa214f78..e7023abda12c 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -442,6 +442,14 @@ static long vhost_vdpa_vring_ioctl(struct vhost_vdpa *v, unsigned int cmd, return -EFAULT; ops->set_vq_ready(vdpa, idx, s.num); return 0; + case VHOST_VDPA_GET_VRING_GROUP: + s.index = idx; + s.num = ops->get_vq_group(vdpa, idx); + if (s.num >= vdpa->ngroups) + return -EIO; + else if (copy_to_user(argp, &s, sizeof s)) + return -EFAULT; + return 0; case VHOST_GET_VRING_BASE: r = ops->get_vq_state(v->vdpa, idx, &vq_state); if (r) diff --git a/include/uapi/linux/vhost.h b/include/uapi/linux/vhost.h index 8762911a3cb8..99de06476fdc 100644 --- a/include/uapi/linux/vhost.h +++ b/include/uapi/linux/vhost.h @@ -150,4 +150,12 @@ /* Get the number of address spaces. */ #define VHOST_VDPA_GET_AS_NUM _IOR(VHOST_VIRTIO, 0x7A, unsigned int) + +/* Get the group for a virtqueue: read index, write group in num, + * The virtqueue index is stored in the index field of + * vhost_vring_state. The group for this specific virtqueue is + * returned via num field of vhost_vring_state. + */ +#define VHOST_VDPA_GET_VRING_GROUP _IOWR(VHOST_VIRTIO, 0x7B, \ + struct vhost_vring_state) #endif -- 2.25.1 _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
next prev parent reply other threads:[~2020-12-16 6:52 UTC|newest] Thread overview: 136+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-12-16 6:47 [PATCH 00/21] Control VQ support in vDPA Jason Wang 2020-12-16 6:47 ` Jason Wang 2020-12-16 6:47 ` [PATCH 01/21] vhost: move the backend feature bits to vhost_types.h Jason Wang 2020-12-16 6:47 ` Jason Wang 2020-12-16 6:47 ` [PATCH 02/21] virtio-vdpa: don't set callback if virtio doesn't need it Jason Wang 2020-12-16 6:47 ` Jason Wang 2020-12-16 6:48 ` [PATCH 03/21] vhost-vdpa: passing iotlb to IOMMU mapping helpers Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 04/21] vhost-vdpa: switch to use vhost-vdpa specific IOTLB Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 05/21] vdpa: add the missing comment for nvqs in struct vdpa_device Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 06/21] vdpa: introduce virtqueue groups Jason Wang 2020-12-16 6:48 ` Jason Wang 2021-01-04 10:04 ` Stefan Hajnoczi 2021-01-04 10:04 ` Stefan Hajnoczi 2021-01-05 4:13 ` Jason Wang 2021-01-05 4:13 ` Jason Wang 2020-12-16 6:48 ` [PATCH 07/21] vdpa: multiple address spaces support Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-29 7:28 ` Eli Cohen 2020-12-30 4:00 ` Jason Wang 2020-12-30 4:00 ` Jason Wang 2020-12-30 4:04 ` Jason Wang 2020-12-30 4:04 ` Jason Wang 2020-12-30 9:44 ` Eli Cohen 2020-12-16 6:48 ` [PATCH 08/21] vdpa: introduce config operations for associating ASID to a virtqueue group Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 09/21] vhost_iotlb: split out IOTLB initialization Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 10/21] vhost: support ASID in IOTLB API Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-29 10:20 ` Eli Cohen 2020-12-30 4:27 ` Jason Wang 2020-12-30 4:27 ` Jason Wang 2020-12-16 6:48 ` [PATCH 11/21] vhost-vdpa: introduce asid based IOTLB Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-29 11:41 ` Eli Cohen 2020-12-30 6:23 ` Jason Wang 2020-12-30 6:23 ` Jason Wang 2020-12-29 11:53 ` Eli Cohen 2020-12-30 6:34 ` Jason Wang 2020-12-30 6:34 ` Jason Wang 2020-12-29 12:05 ` Eli Cohen 2020-12-30 6:33 ` Jason Wang 2020-12-30 6:33 ` Jason Wang 2020-12-16 6:48 ` [PATCH 12/21] vhost-vdpa: introduce uAPI to get the number of virtqueue groups Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-29 12:24 ` Eli Cohen 2020-12-30 6:49 ` Jason Wang 2020-12-30 6:49 ` Jason Wang 2020-12-30 10:05 ` Eli Cohen 2020-12-31 2:36 ` Jason Wang 2020-12-31 2:36 ` Jason Wang 2020-12-16 6:48 ` [PATCH 13/21] vhost-vdpa: introduce uAPI to get the number of address spaces Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` Jason Wang [this message] 2020-12-16 6:48 ` [PATCH 14/21] vhost-vdpa: uAPI to get virtqueue group id Jason Wang 2020-12-16 6:48 ` [PATCH 15/21] vhost-vdpa: introduce uAPI to set group ASID Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 16/21] vhost-vdpa: support ASID based IOTLB API Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 17/21] vdpa_sim: split vdpasim_virtqueue's iov field in out_iov and in_iov Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 18/21] vdpa_sim: advertise VIRTIO_NET_F_MTU Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 19/21] vdpa_sim: factor out buffer completion logic Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 20/21] vdpa_sim: filter destination mac address Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-16 6:48 ` [PATCH 21/21] vdpasim: control virtqueue support Jason Wang 2020-12-16 6:48 ` Jason Wang 2020-12-17 20:19 ` kernel test robot 2020-12-17 20:19 ` kernel test robot 2020-12-17 20:19 ` kernel test robot 2021-01-11 12:26 ` Eli Cohen 2021-01-12 3:11 ` Jason Wang 2021-01-12 3:11 ` Jason Wang 2021-01-22 19:43 ` Eugenio Perez Martin 2021-01-25 3:16 ` Jason Wang 2021-01-25 3:16 ` Jason Wang 2020-12-16 9:47 ` [PATCH 00/21] Control VQ support in vDPA Michael S. Tsirkin 2020-12-16 9:47 ` Michael S. Tsirkin 2020-12-17 3:30 ` Jason Wang 2020-12-17 3:30 ` Jason Wang 2020-12-17 7:58 ` Michael S. Tsirkin 2020-12-17 7:58 ` Michael S. Tsirkin 2020-12-17 9:02 ` Jason Wang 2020-12-17 9:02 ` Jason Wang 2020-12-17 22:28 ` Michael S. Tsirkin 2020-12-17 22:28 ` Michael S. Tsirkin 2020-12-18 2:56 ` Jason Wang 2020-12-18 2:56 ` Jason Wang 2020-12-17 7:26 ` Eli Cohen 2022-02-24 21:22 ` [RFC PATCH v2 00/19] " Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 01/19] vhost: move the backend feature bits to vhost_types.h Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 02/19] virtio-vdpa: don't set callback if virtio doesn't need it Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 03/19] vhost-vdpa: passing iotlb to IOMMU mapping helpers Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 04/19] vhost-vdpa: switch to use vhost-vdpa specific IOTLB Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 05/19] vdpa: introduce virtqueue groups Gautam Dawar 2022-02-28 8:07 ` Jason Wang 2022-02-28 8:07 ` Jason Wang 2022-02-28 10:57 ` Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 06/19] vdpa: multiple address spaces support Gautam Dawar 2022-03-03 19:39 ` Eugenio Perez Martin 2022-03-04 6:30 ` Gautam Dawar 2022-03-04 17:45 ` Eugenio Perez Martin 2022-02-24 21:22 ` [RFC PATCH v2 07/19] vdpa: introduce config operations for associating ASID to a virtqueue group Gautam Dawar 2022-03-04 9:54 ` Eugenio Perez Martin 2022-03-04 17:48 ` Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 08/19] vhost_iotlb: split out IOTLB initialization Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 09/19] vhost: support ASID in IOTLB API Gautam Dawar 2022-03-04 10:25 ` Eugenio Perez Martin 2022-03-04 17:52 ` Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 10/19] vhost-vdpa: introduce asid based IOTLB Gautam Dawar 2022-03-04 17:56 ` Eugenio Perez Martin 2022-03-07 10:07 ` Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 11/19] vhost-vdpa: introduce uAPI to get the number of virtqueue groups Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 12/19] vhost-vdpa: introduce uAPI to get the number of address spaces Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 13/19] vhost-vdpa: uAPI to get virtqueue group id Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 14/19] vhost-vdpa: introduce uAPI to set group ASID Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 15/19] vhost-vdpa: support ASID based IOTLB API Gautam Dawar 2022-03-04 18:04 ` Eugenio Perez Martin 2022-03-07 10:23 ` Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 16/19] vdpa_sim: advertise VIRTIO_NET_F_MTU Gautam Dawar 2022-03-10 17:55 ` Eugenio Perez Martin 2022-02-24 21:22 ` [RFC PATCH v2 17/19] vdpa_sim: factor out buffer completion logic Gautam Dawar 2022-02-24 21:22 ` [RFC PATCH v2 18/19] vdpa_sim: filter destination mac address Gautam Dawar 2022-03-10 18:22 ` Eugenio Perez Martin 2022-02-24 21:22 ` [RFC PATCH v2 19/19] vdpasim: control virtqueue support Gautam Dawar 2022-03-10 18:20 ` Eugenio Perez Martin 2022-03-18 7:35 ` Eugenio Perez Martin 2022-03-22 8:46 ` Gautam Dawar 2022-02-28 8:17 ` [RFC PATCH v2 00/19] Control VQ support in vDPA Jason Wang 2022-02-28 8:17 ` Jason Wang 2022-02-28 10:56 ` Gautam Dawar
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