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implement registering NAPI on IoUring (#24850)

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Özgür Akkurt 2025-08-16 13:18:49 +06:00 committed by GitHub
parent 98547713a3
commit 99c4890559
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2 changed files with 44 additions and 2 deletions
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34
lib/std/os/linux.zig
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@ -6587,7 +6587,7 @@ pub const IORING_REGISTER = enum(u32) {
// register/unregister io_uring fd with the ring
REGISTER_RING_FDS,
NREGISTER_RING_FDS,
UNREGISTER_RING_FDS,
// register ring based provide buffer group
REGISTER_PBUF_RING,
@ -6599,8 +6599,31 @@ pub const IORING_REGISTER = enum(u32) {
// register a range of fixed file slots for automatic slot allocation
REGISTER_FILE_ALLOC_RANGE,
// return status information for a buffer group
REGISTER_PBUF_STATUS,
// set/clear busy poll settings
REGISTER_NAPI,
UNREGISTER_NAPI,
REGISTER_CLOCK,
// clone registered buffers from source ring to current ring
REGISTER_CLONE_BUFFERS,
// send MSG_RING without having a ring
REGISTER_SEND_MSG_RING,
// register a netdev hw rx queue for zerocopy
REGISTER_ZCRX_IFQ,
// resize CQ ring
REGISTER_RESIZE_RINGS,
REGISTER_MEM_REGION,
// flag added to the opcode to use a registered ring fd
IORING_REGISTER_USE_REGISTERED_RING = 1 << 31,
REGISTER_USE_REGISTERED_RING = 1 << 31,
_,
};
@ -6657,6 +6680,13 @@ pub const io_uring_notification_register = extern struct {
resv3: u64,
};
pub const io_uring_napi = extern struct {
busy_poll_to: u32,
prefer_busy_poll: u8,
_pad: [3]u8,
resv: u64,
};
/// Skip updating fd indexes set to this value in the fd table */
pub const IORING_REGISTER_FILES_SKIP = -2;

12
lib/std/os/linux/IoUring.zig
View File

@ -1270,6 +1270,18 @@ pub fn unregister_eventfd(self: *IoUring) !void {
try handle_registration_result(res);
}
pub fn register_napi(self: *IoUring, napi: *linux.io_uring_napi) !void {
assert(self.fd >= 0);
const res = linux.io_uring_register(self.fd, .REGISTER_NAPI, napi, 1);
try handle_registration_result(res);
}
pub fn unregister_napi(self: *IoUring, napi: *linux.io_uring_napi) !void {
assert(self.fd >= 0);
const res = linux.io_uring_register(self.fd, .UNREGISTER_NAPI, napi, 1);
try handle_registration_result(res);
}
/// Registers an array of buffers for use with `read_fixed` and `write_fixed`.
pub fn register_buffers(self: *IoUring, buffers: []const posix.iovec) !void {
assert(self.fd >= 0);