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vsock: Set BACKEND_EVENT based on NUM_QUEUES

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BACKEND_EVENT value depends on NUM_QUEUES, because it is the next value
of NUM_QUEUES, so set it based on NUM_QUEUES

Signed-off-by: Jeongik Cha <jeongik@google.com>
This commit is contained in:
Jeongik Cha 2023-07-28 00:16:48 +09:00 committed by Viresh Kumar
parent 9f10349f99
commit f2acb05c33
1 changed files with 4 additions and 2 deletions
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6
crates/vsock/src/vhu_vsock.rs
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@ -37,10 +37,12 @@ const TX_QUEUE_EVENT: u16 = 1;
const EVT_QUEUE_EVENT: u16 = 2;
/// Notification coming from the backend.
pub(crate) const BACKEND_EVENT: u16 = 3;
/// Event range [0...num_queues] is reserved for queues and exit event.
/// So NUM_QUEUES + 1 is used.
pub(crate) const BACKEND_EVENT: u16 = (NUM_QUEUES + 1) as u16;
/// Notification coming from the sibling VM.
pub(crate) const SIBLING_VM_EVENT: u16 = 4;
pub(crate) const SIBLING_VM_EVENT: u16 = BACKEND_EVENT + 1;
/// CID of the host
pub(crate) const VSOCK_HOST_CID: u64 = 2;