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author | robot-contrib <robot-contrib@yandex-team.com> | 2023-11-11 02:21:37 +0300 |
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committer | robot-contrib <robot-contrib@yandex-team.com> | 2023-11-11 02:40:39 +0300 |
commit | c9eb66546bc5c72ff6a4424f5c73ada67d0aeaa8 (patch) | |
tree | 4a18f83f5979766f6a360805a97500e9b2beeb75 /contrib/libs/linux-headers/linux/vhost.h | |
parent | 638336990198a7f36d43cfd21a42b25d9dcb6efc (diff) | |
download | ydb-c9eb66546bc5c72ff6a4424f5c73ada67d0aeaa8.tar.gz |
Update contrib/libs/linux-headers to 6.5.9
Diffstat (limited to 'contrib/libs/linux-headers/linux/vhost.h')
-rw-r--r-- | contrib/libs/linux-headers/linux/vhost.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/contrib/libs/linux-headers/linux/vhost.h b/contrib/libs/linux-headers/linux/vhost.h index 92e1b700b5..f5c48b61ab 100644 --- a/contrib/libs/linux-headers/linux/vhost.h +++ b/contrib/libs/linux-headers/linux/vhost.h @@ -45,6 +45,25 @@ #define VHOST_SET_LOG_BASE _IOW(VHOST_VIRTIO, 0x04, __u64) /* Specify an eventfd file descriptor to signal on log write. */ #define VHOST_SET_LOG_FD _IOW(VHOST_VIRTIO, 0x07, int) +/* By default, a device gets one vhost_worker that its virtqueues share. This + * command allows the owner of the device to create an additional vhost_worker + * for the device. It can later be bound to 1 or more of its virtqueues using + * the VHOST_ATTACH_VRING_WORKER command. + * + * This must be called after VHOST_SET_OWNER and the caller must be the owner + * of the device. The new thread will inherit caller's cgroups and namespaces, + * and will share the caller's memory space. The new thread will also be + * counted against the caller's RLIMIT_NPROC value. + * + * The worker's ID used in other commands will be returned in + * vhost_worker_state. + */ +#define VHOST_NEW_WORKER _IOR(VHOST_VIRTIO, 0x8, struct vhost_worker_state) +/* Free a worker created with VHOST_NEW_WORKER if it's not attached to any + * virtqueue. If userspace is not able to call this for workers its created, + * the kernel will free all the device's workers when the device is closed. + */ +#define VHOST_FREE_WORKER _IOW(VHOST_VIRTIO, 0x9, struct vhost_worker_state) /* Ring setup. */ /* Set number of descriptors in ring. This parameter can not @@ -70,6 +89,18 @@ #define VHOST_VRING_BIG_ENDIAN 1 #define VHOST_SET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x13, struct vhost_vring_state) #define VHOST_GET_VRING_ENDIAN _IOW(VHOST_VIRTIO, 0x14, struct vhost_vring_state) +/* Attach a vhost_worker created with VHOST_NEW_WORKER to one of the device's + * virtqueues. + * + * This will replace the virtqueue's existing worker. If the replaced worker + * is no longer attached to any virtqueues, it can be freed with + * VHOST_FREE_WORKER. + */ +#define VHOST_ATTACH_VRING_WORKER _IOW(VHOST_VIRTIO, 0x15, \ + struct vhost_vring_worker) +/* Return the vring worker's ID */ +#define VHOST_GET_VRING_WORKER _IOWR(VHOST_VIRTIO, 0x16, \ + struct vhost_vring_worker) /* The following ioctls use eventfd file descriptors to signal and poll * for events. */ |