aux: increase max payload size #298

mwojcik · 2024-05-17T15:34:20+08:00

mwojcik commented

2024-05-17 15:34:20 +08:00

Zynq equivalent of artiq#2404. Thankfully no shenanigans with Rust toolchain were necessary, so this can stay on the older version (postponing the pain, when we finally migrate the code to the main repo...).

Turns out that the work buffer isn't necessary, writer/reader can work, just not with copy_from_slice, that probably generates AXI bursts. No need to align/pad access in packet fields either.

Zynq equivalent of [artiq#2404](https://github.com/m-labs/artiq/pull/2404). Thankfully no shenanigans with Rust toolchain were necessary, so this can stay on the older version (postponing the pain, when we finally migrate the code to the main repo...). Turns out that the work buffer isn't necessary, writer/reader can work, just not with ``copy_from_slice``, that probably generates AXI bursts. No need to align/pad access in packet fields either.

esavkin reviewed 2024-05-17 16:06:50 +08:00

src/libboard_artiq/src/drtioaux.rs Outdated

						
				@ -83,2 +80,2 @@

				            let mut buf: [u8; LEN] = [0; LEN];

				            copy_work_buffer(ptr, buf.as_mut_ptr() as *mut u32, LEN as isize);

				            let len = Packet::get_aligned_size(*(ptr as *mut u8));

				            let mut buf: [u8; 1024] = [0; 1024];