[RFC,24/27] vhost: add support for VDUSE status set event

Message ID 20230331154259.1447831-25-maxime.coquelin@redhat.com (mailing list archive)
State Superseded, archived
Delegated to: Maxime Coquelin
Headers
Series Add VDUSE support to Vhost library |

Commit Message

Maxime Coquelin March 31, 2023, 3:42 p.m. UTC
  This patch adds support for VDUSE_SET_STATUS event
handling, which consists in updating the Virtio device
status set by the Virtio driver.

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/vhost/vduse.c | 6 ++++++
 1 file changed, 6 insertions(+)
  

Comments

Chenbo Xia May 9, 2023, 5:34 a.m. UTC | #1
> -----Original Message-----
> From: Maxime Coquelin <maxime.coquelin@redhat.com>
> Sent: Friday, March 31, 2023 11:43 PM
> To: dev@dpdk.org; david.marchand@redhat.com; Xia, Chenbo
> <chenbo.xia@intel.com>; mkp@redhat.com; fbl@redhat.com;
> jasowang@redhat.com; Liang, Cunming <cunming.liang@intel.com>; Xie, Yongji
> <xieyongji@bytedance.com>; echaudro@redhat.com; eperezma@redhat.com;
> amorenoz@redhat.com
> Cc: Maxime Coquelin <maxime.coquelin@redhat.com>
> Subject: [RFC 24/27] vhost: add support for VDUSE status set event
> 
> This patch adds support for VDUSE_SET_STATUS event
> handling, which consists in updating the Virtio device
> status set by the Virtio driver.
> 
> Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
> ---
>  lib/vhost/vduse.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
> index 36028b7315..7d59a5f709 100644
> --- a/lib/vhost/vduse.c
> +++ b/lib/vhost/vduse.c
> @@ -163,6 +163,12 @@ vduse_events_handler(int fd, void *arg, int *remove
> __rte_unused)
>  		resp.vq_state.split.avail_index = vq->last_avail_idx;
>  		resp.result = VDUSE_REQ_RESULT_OK;
>  		break;
> +	case VDUSE_SET_STATUS:
> +		VHOST_LOG_CONFIG(dev->ifname, INFO, "\tnew status: 0x%08x\n",
> +				req.s.status);
> +		dev->status = req.s.status;
> +		resp.result = VDUSE_REQ_RESULT_OK;
> +		break;
>  	default:
>  		resp.result = VDUSE_REQ_RESULT_FAILED;
>  		break;
> --
> 2.39.2

Reviewed-by: Chenbo Xia <chenbo.xia@intel.com>
  

Patch

diff --git a/lib/vhost/vduse.c b/lib/vhost/vduse.c
index 36028b7315..7d59a5f709 100644
--- a/lib/vhost/vduse.c
+++ b/lib/vhost/vduse.c
@@ -163,6 +163,12 @@  vduse_events_handler(int fd, void *arg, int *remove __rte_unused)
 		resp.vq_state.split.avail_index = vq->last_avail_idx;
 		resp.result = VDUSE_REQ_RESULT_OK;
 		break;
+	case VDUSE_SET_STATUS:
+		VHOST_LOG_CONFIG(dev->ifname, INFO, "\tnew status: 0x%08x\n",
+				req.s.status);
+		dev->status = req.s.status;
+		resp.result = VDUSE_REQ_RESULT_OK;
+		break;
 	default:
 		resp.result = VDUSE_REQ_RESULT_FAILED;
 		break;