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drtio: better control state of bigger payloads

This commit is contained in:
mwojcik 2023-10-26 16:43:11 +08:00 committed by Sébastien Bourdeauducq
parent bb0b8a6c00
commit b3c0d084d4
6 changed files with 112 additions and 55 deletions
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70
artiq/firmware/libproto_artiq/drtioaux_proto.rs
View File

@ -20,6 +20,46 @@ pub const SAT_PAYLOAD_MAX_SIZE: usize = /*max size*/512 - /*CRC*/4 - /*packet I
// used by DDMA, subkernel program data (need to provide extra ID and destination)
pub const MASTER_PAYLOAD_MAX_SIZE: usize = SAT_PAYLOAD_MAX_SIZE - /*destination*/1 - /*ID*/4;
#[derive(PartialEq, Clone, Copy, Debug)]
#[repr(u8)]
pub enum PayloadStatus {
Middle = 0,
First = 1,
Last = 2,
FirstAndLast = 3,
}
impl From<u8> for PayloadStatus {
fn from(value: u8) -> PayloadStatus {
match value {
0 => PayloadStatus::Middle,
1 => PayloadStatus::First,
2 => PayloadStatus::Last,
3 => PayloadStatus::FirstAndLast,
_ => unreachable!(),
}
}
}
impl PayloadStatus {
pub fn is_first(self) -> bool {
self == PayloadStatus::First || self == PayloadStatus::FirstAndLast
}
pub fn is_last(self) -> bool {
self == PayloadStatus::Last || self == PayloadStatus::FirstAndLast
}
pub fn from_status(first: bool, last: bool) -> PayloadStatus {
match (first, last) {
(true, true) => PayloadStatus::FirstAndLast,
(true, false) => PayloadStatus::First,
(false, true) => PayloadStatus::Last,
(false, false) => PayloadStatus::Middle
}
}
}
#[derive(PartialEq, Debug)]
pub enum Packet {
EchoRequest,
@ -66,7 +106,7 @@ pub enum Packet {
AnalyzerDataRequest { destination: u8 },
AnalyzerData { last: bool, length: u16, data: [u8; SAT_PAYLOAD_MAX_SIZE]},
DmaAddTraceRequest { destination: u8, id: u32, last: bool, length: u16, trace: [u8; MASTER_PAYLOAD_MAX_SIZE] },
DmaAddTraceRequest { destination: u8, id: u32, status: PayloadStatus, length: u16, trace: [u8; MASTER_PAYLOAD_MAX_SIZE] },
DmaAddTraceReply { succeeded: bool },
DmaRemoveTraceRequest { destination: u8, id: u32 },
DmaRemoveTraceReply { succeeded: bool },
@ -74,14 +114,14 @@ pub enum Packet {
DmaPlaybackReply { succeeded: bool },
DmaPlaybackStatus { destination: u8, id: u32, error: u8, channel: u32, timestamp: u64 },
SubkernelAddDataRequest { destination: u8, id: u32, last: bool, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
SubkernelAddDataRequest { destination: u8, id: u32, status: PayloadStatus, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
SubkernelAddDataReply { succeeded: bool },
SubkernelLoadRunRequest { destination: u8, id: u32, run: bool },
SubkernelLoadRunReply { succeeded: bool },
SubkernelFinished { id: u32, with_exception: bool },
SubkernelExceptionRequest { destination: u8 },
SubkernelException { last: bool, length: u16, data: [u8; SAT_PAYLOAD_MAX_SIZE] },
SubkernelMessage { destination: u8, id: u32, last: bool, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
SubkernelMessage { destination: u8, id: u32, status: PayloadStatus, length: u16, data: [u8; MASTER_PAYLOAD_MAX_SIZE] },
SubkernelMessageAck { destination: u8 },
}
@ -240,14 +280,14 @@ impl Packet {
0xb0 => {
let destination = reader.read_u8()?;
let id = reader.read_u32()?;
let last = reader.read_bool()?;
let status = reader.read_u8()?;
let length = reader.read_u16()?;
let mut trace: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
reader.read_exact(&mut trace[0..length as usize])?;
Packet::DmaAddTraceRequest {
destination: destination,
id: id,
last: last,
status: PayloadStatus::from(status),
length: length as u16,
trace: trace,
}
@ -281,14 +321,14 @@ impl Packet {
0xc0 => {
let destination = reader.read_u8()?;
let id = reader.read_u32()?;
let last = reader.read_bool()?;
let status = reader.read_u8()?;
let length = reader.read_u16()?;
let mut data: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
reader.read_exact(&mut data[0..length as usize])?;
Packet::SubkernelAddDataRequest {
destination: destination,
id: id,
last: last,
status: PayloadStatus::from(status),
length: length as u16,
data: data,
}
@ -325,14 +365,14 @@ impl Packet {
0xcb => {
let destination = reader.read_u8()?;
let id = reader.read_u32()?;
let last = reader.read_bool()?;
let status = reader.read_u8()?;
let length = reader.read_u16()?;
let mut data: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
reader.read_exact(&mut data[0..length as usize])?;
Packet::SubkernelMessage {
destination: destination,
id: id,
last: last,
status: PayloadStatus::from(status),
length: length as u16,
data: data,
}
@ -521,11 +561,11 @@ impl Packet {
writer.write_all(&data[0..length as usize])?;
},
Packet::DmaAddTraceRequest { destination, id, last, trace, length } => {
Packet::DmaAddTraceRequest { destination, id, status, trace, length } => {
writer.write_u8(0xb0)?;
writer.write_u8(destination)?;
writer.write_u32(id)?;
writer.write_bool(last)?;
writer.write_u8(status as u8)?;
// trace may be broken down to fit within drtio aux memory limit
// will be reconstructed by satellite
writer.write_u16(length)?;
@ -563,11 +603,11 @@ impl Packet {
writer.write_u64(timestamp)?;
},
Packet::SubkernelAddDataRequest { destination, id, last, data, length } => {
Packet::SubkernelAddDataRequest { destination, id, status, data, length } => {
writer.write_u8(0xc0)?;
writer.write_u8(destination)?;
writer.write_u32(id)?;
writer.write_bool(last)?;
writer.write_u8(status as u8)?;
writer.write_u16(length)?;
writer.write_all(&data[0..length as usize])?;
},
@ -600,11 +640,11 @@ impl Packet {
writer.write_u16(length)?;
writer.write_all(&data[0..length as usize])?;
},
Packet::SubkernelMessage { destination, id, last, data, length } => {
Packet::SubkernelMessage { destination, id, status, data, length } => {
writer.write_u8(0xcb)?;
writer.write_u8(destination)?;
writer.write_u32(id)?;
writer.write_bool(last)?;
writer.write_u8(status as u8)?;
writer.write_u16(length)?;
writer.write_all(&data[0..length as usize])?;
},

6
artiq/firmware/runtime/kernel.rs
View File

@ -95,7 +95,7 @@ pub mod subkernel {
use core::str;
use board_artiq::drtio_routing::RoutingTable;
use board_misoc::clock;
use proto_artiq::{drtioaux_proto::MASTER_PAYLOAD_MAX_SIZE, rpc_proto as rpc};
use proto_artiq::{drtioaux_proto::{PayloadStatus, MASTER_PAYLOAD_MAX_SIZE}, rpc_proto as rpc};
use io::Cursor;
use rtio_mgt::drtio;
use sched::{Io, Mutex, Error as SchedError};
@ -317,7 +317,7 @@ pub mod subkernel {
static mut CURRENT_MESSAGES: BTreeMap<u32, Message> = BTreeMap::new();
pub fn message_handle_incoming(io: &Io, subkernel_mutex: &Mutex,
id: u32, last: bool, length: usize, data: &[u8; MASTER_PAYLOAD_MAX_SIZE]) {
id: u32, status: PayloadStatus, length: usize, data: &[u8; MASTER_PAYLOAD_MAX_SIZE]) {
// called when receiving a message from satellite
let _lock = match subkernel_mutex.lock(io) {
Ok(lock) => lock,
@ -338,7 +338,7 @@ pub mod subkernel {
});
}
};
if last {
if status.is_last() {
unsafe {
// when done, remove from working queue
MESSAGE_QUEUE.push(CURRENT_MESSAGES.remove(&id).unwrap());

25
artiq/firmware/runtime/rtio_mgt.rs
View File

@ -17,7 +17,7 @@ pub mod drtio {
use super::*;
use alloc::vec::Vec;
use drtioaux;
use proto_artiq::drtioaux_proto::MASTER_PAYLOAD_MAX_SIZE;
use proto_artiq::drtioaux_proto::{MASTER_PAYLOAD_MAX_SIZE, PayloadStatus};
use rtio_dma::remote_dma;
#[cfg(has_rtio_analyzer)]
use analyzer::remote_analyzer::RemoteBuffer;
@ -75,8 +75,8 @@ pub mod drtio {
subkernel::subkernel_finished(io, subkernel_mutex, id, with_exception);
None
},
drtioaux::Packet::SubkernelMessage { id, destination: from, last, length, data } => {
subkernel::message_handle_incoming(io, subkernel_mutex, id, last, length as usize, &data);
drtioaux::Packet::SubkernelMessage { id, destination: from, status, length, data } => {
subkernel::message_handle_incoming(io, subkernel_mutex, id, status, length as usize, &data);
// acknowledge receiving part of the message
drtioaux::send(linkno,
&drtioaux::Packet::SubkernelMessageAck { destination: from }
@ -391,15 +391,18 @@ pub mod drtio {
}
fn partition_data<F>(data: &[u8], send_f: F) -> Result<(), &'static str>
where F: Fn(&[u8; MASTER_PAYLOAD_MAX_SIZE], bool, usize) -> Result<(), &'static str> {
where F: Fn(&[u8; MASTER_PAYLOAD_MAX_SIZE], PayloadStatus, usize) -> Result<(), &'static str> {
let mut i = 0;
let mut first = true;
while i < data.len() {
let mut slice: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
let len: usize = if i + MASTER_PAYLOAD_MAX_SIZE < data.len() { MASTER_PAYLOAD_MAX_SIZE } else { data.len() - i } as usize;
let last = i + len == data.len();
let status = PayloadStatus::from_status(first, last);
slice[..len].clone_from_slice(&data[i..i+len]);
i += len;
send_f(&slice, last, len)?;
send_f(&slice, status, len)?;
first = false;
}
Ok(())
}
@ -408,10 +411,10 @@ pub mod drtio {
routing_table: &drtio_routing::RoutingTable,
id: u32, destination: u8, trace: &[u8]) -> Result<(), &'static str> {
let linkno = routing_table.0[destination as usize][0] - 1;
partition_data(trace, |slice, last, len: usize| {
partition_data(trace, |slice, status, len: usize| {
let reply = aux_transact(io, aux_mutex, linkno,
&drtioaux::Packet::DmaAddTraceRequest {
id: id, destination: destination, last: last, length: len as u16, trace: *slice});
id: id, destination: destination, status: status, length: len as u16, trace: *slice});
match reply {
Ok(drtioaux::Packet::DmaAddTraceReply { succeeded: true }) => Ok(()),
Ok(drtioaux::Packet::DmaAddTraceReply { succeeded: false }) =>
@ -504,10 +507,10 @@ pub mod drtio {
pub fn subkernel_upload(io: &Io, aux_mutex: &Mutex, routing_table: &drtio_routing::RoutingTable,
id: u32, destination: u8, data: &Vec<u8>) -> Result<(), &'static str> {
let linkno = routing_table.0[destination as usize][0] - 1;
partition_data(data, |slice, last, len: usize| {
partition_data(data, |slice, status, len: usize| {
let reply = aux_transact(io, aux_mutex, linkno,
&drtioaux::Packet::SubkernelAddDataRequest {
id: id, destination: destination, last: last, length: len as u16, data: *slice});
id: id, destination: destination, status: status, length: len as u16, data: *slice});
match reply {
Ok(drtioaux::Packet::SubkernelAddDataReply { succeeded: true }) => Ok(()),
Ok(drtioaux::Packet::SubkernelAddDataReply { succeeded: false }) =>
@ -557,10 +560,10 @@ pub mod drtio {
routing_table: &drtio_routing::RoutingTable, id: u32, destination: u8, message: &[u8]
) -> Result<(), &'static str> {
let linkno = routing_table.0[destination as usize][0] - 1;
partition_data(message, |slice, last, len: usize| {
partition_data(message, |slice, status, len: usize| {
let reply = aux_transact(io, aux_mutex, linkno,
&drtioaux::Packet::SubkernelMessage {
destination: destination, id: id, last: last, length: len as u16, data: *slice});
destination: destination, id: id, status: status, length: len as u16, data: *slice});
match reply {
Ok(drtioaux::Packet::SubkernelMessageAck { .. }) => Ok(()),
Ok(_) => Err("sending message to subkernel failed, unexpected aux packet"),

8
artiq/firmware/satman/dma.rs
View File

@ -1,4 +1,5 @@
use board_misoc::{csr, cache::flush_l2_cache};
use proto_artiq::drtioaux_proto::PayloadStatus;
use alloc::{vec::Vec, collections::btree_map::BTreeMap};
use ::{cricon_select, RtioMaster};
@ -51,7 +52,10 @@ impl Manager {
}
}
pub fn add(&mut self, id: u32, last: bool, trace: &[u8], trace_len: usize) -> Result<(), Error> {
pub fn add(&mut self, id: u32, status: PayloadStatus, trace: &[u8], trace_len: usize) -> Result<(), Error> {
if status.is_first() {
self.entries.remove(&id);
}
let entry = match self.entries.get_mut(&id) {
Some(entry) => {
if entry.complete {
@ -76,7 +80,7 @@ impl Manager {
};
entry.trace.extend(&trace[0..trace_len]);
if last {
if status.is_last() {
entry.trace.push(0);
let data_len = entry.trace.len();

40
artiq/firmware/satman/kernel.rs
View File

@ -4,7 +4,11 @@ use cslice::AsCSlice;
use board_artiq::{mailbox, spi};
use board_misoc::{csr, clock, i2c};
use proto_artiq::{kernel_proto as kern, session_proto::Reply::KernelException as HostKernelException, rpc_proto as rpc};
use proto_artiq::{
drtioaux_proto::PayloadStatus,
kernel_proto as kern,
session_proto::Reply::KernelException as HostKernelException,
rpc_proto as rpc};
use eh::eh_artiq;
use io::Cursor;
use kernel::eh_artiq::StackPointerBacktrace;
@ -148,24 +152,22 @@ pub struct SubkernelFinished {
pub struct SliceMeta {
pub len: u16,
pub last: bool
pub status: PayloadStatus
}
macro_rules! get_slice_fn {
( $name:tt, $size:expr ) => {
pub fn $name(&mut self, data_slice: &mut [u8; $size]) -> SliceMeta {
if self.data.len() == 0 {
return SliceMeta { len: 0, last: true };
}
let first = self.it == 0;
let len = min($size, self.data.len() - self.it);
let last = self.it + len == self.data.len();
let status = PayloadStatus::from_status(first, last);
data_slice[..len].clone_from_slice(&self.data[self.it..self.it+len]);
self.it += len;
SliceMeta {
len: len as u16,
last: last
status: status
}
}
};
@ -193,8 +195,12 @@ impl MessageManager {
}
}
pub fn handle_incoming(&mut self, last: bool, length: usize, data: &[u8; MASTER_PAYLOAD_MAX_SIZE]) {
pub fn handle_incoming(&mut self, status: PayloadStatus, length: usize, data: &[u8; MASTER_PAYLOAD_MAX_SIZE]) {
// called when receiving a message from master
if status.is_first() {
// clear the buffer for first message
self.in_buffer = None;
}
match self.in_buffer.as_mut() {
Some(message) => message.data.extend(&data[..length]),
None => {
@ -204,7 +210,7 @@ impl MessageManager {
});
}
};
if last {
if status.is_last() {
// when done, remove from working queue
self.in_queue.push_back(self.in_buffer.take().unwrap());
}
@ -236,7 +242,7 @@ impl MessageManager {
return None;
}
let meta = self.out_message.as_mut()?.get_slice_master(data_slice);
if meta.last {
if meta.status.is_last() {
// clear the message slot
self.out_message = None;
// notify kernel with a flag that message is sent
@ -315,7 +321,11 @@ impl Manager {
}
}
pub fn add(&mut self, id: u32, last: bool, data: &[u8], data_len: usize) -> Result<(), Error> {
pub fn add(&mut self, id: u32, status: PayloadStatus, data: &[u8], data_len: usize) -> Result<(), Error> {
if status.is_first() {
// in case master is interrupted, and subkernel is sent again, clean the state
self.kernels.remove(&id);
}
let kernel = match self.kernels.get_mut(&id) {
Some(kernel) => {
if kernel.complete {
@ -338,7 +348,7 @@ impl Manager {
};
kernel.library.extend(&data[0..data_len]);
kernel.complete = last;
kernel.complete = status.is_last();
Ok(())
}
@ -371,11 +381,11 @@ impl Manager {
kern_acknowledge()
}
pub fn message_handle_incoming(&mut self, last: bool, length: usize, slice: &[u8; MASTER_PAYLOAD_MAX_SIZE]) {
pub fn message_handle_incoming(&mut self, status: PayloadStatus, length: usize, slice: &[u8; MASTER_PAYLOAD_MAX_SIZE]) {
if !self.is_running() {
return;
}
self.session.messages.handle_incoming(last, length, slice);
self.session.messages.handle_incoming(status, length, slice);
}
pub fn message_get_slice(&mut self, slice: &mut [u8; MASTER_PAYLOAD_MAX_SIZE]) -> Option<SliceMeta> {
@ -437,7 +447,7 @@ impl Manager {
pub fn exception_get_slice(&mut self, data_slice: &mut [u8; SAT_PAYLOAD_MAX_SIZE]) -> SliceMeta {
match self.session.last_exception.as_mut() {
Some(exception) => exception.get_slice_sat(data_slice),
None => SliceMeta { len: 0, last: true }
None => SliceMeta { len: 0, status: PayloadStatus::FirstAndLast }
}
}

18
artiq/firmware/satman/main.rs
View File

@ -145,7 +145,7 @@ fn process_aux_packet(dmamgr: &mut DmaManager, analyzer: &mut Analyzer, kernelmg
let meta = kernelmgr.message_get_slice(&mut data_slice).unwrap();
drtioaux::send(0, &drtioaux::Packet::SubkernelMessage {
destination: destination, id: kernelmgr.get_current_id().unwrap(),
last: meta.last, length: meta.len as u16, data: data_slice
status: meta.status, length: meta.len as u16, data: data_slice
})?;
} else {
let errors;
@ -370,9 +370,9 @@ fn process_aux_packet(dmamgr: &mut DmaManager, analyzer: &mut Analyzer, kernelmg
})
}
drtioaux::Packet::DmaAddTraceRequest { destination: _destination, id, last, length, trace } => {
drtioaux::Packet::DmaAddTraceRequest { destination: _destination, id, status, length, trace } => {
forward!(_routing_table, _destination, *_rank, _repeaters, &packet);
let succeeded = dmamgr.add(id, last, &trace, length as usize).is_ok();
let succeeded = dmamgr.add(id, status, &trace, length as usize).is_ok();
drtioaux::send(0,
&drtioaux::Packet::DmaAddTraceReply { succeeded: succeeded })
}
@ -390,9 +390,9 @@ fn process_aux_packet(dmamgr: &mut DmaManager, analyzer: &mut Analyzer, kernelmg
&drtioaux::Packet::DmaPlaybackReply { succeeded: succeeded })
}
drtioaux::Packet::SubkernelAddDataRequest { destination: _destination, id, last, length, data } => {
drtioaux::Packet::SubkernelAddDataRequest { destination: _destination, id, status, length, data } => {
forward!(_routing_table, _destination, *_rank, _repeaters, &packet);
let succeeded = kernelmgr.add(id, last, &data, length as usize).is_ok();
let succeeded = kernelmgr.add(id, status, &data, length as usize).is_ok();
drtioaux::send(0,
&drtioaux::Packet::SubkernelAddDataReply { succeeded: succeeded })
}
@ -416,14 +416,14 @@ fn process_aux_packet(dmamgr: &mut DmaManager, analyzer: &mut Analyzer, kernelmg
let mut data_slice: [u8; SAT_PAYLOAD_MAX_SIZE] = [0; SAT_PAYLOAD_MAX_SIZE];
let meta = kernelmgr.exception_get_slice(&mut data_slice);
drtioaux::send(0, &drtioaux::Packet::SubkernelException {
last: meta.last,
last: meta.status.is_last(),
length: meta.len,
data: data_slice,
})
}
drtioaux::Packet::SubkernelMessage { destination, id: _id, last, length, data } => {
drtioaux::Packet::SubkernelMessage { destination, id: _id, status, length, data } => {
forward!(_routing_table, destination, *_rank, _repeaters, &packet);
kernelmgr.message_handle_incoming(last, length as usize, &data);
kernelmgr.message_handle_incoming(status, length as usize, &data);
drtioaux::send(0, &drtioaux::Packet::SubkernelMessageAck {
destination: destination
})
@ -435,7 +435,7 @@ fn process_aux_packet(dmamgr: &mut DmaManager, analyzer: &mut Analyzer, kernelmg
if let Some(meta) = kernelmgr.message_get_slice(&mut data_slice) {
drtioaux::send(0, &drtioaux::Packet::SubkernelMessage {
destination: *_rank, id: kernelmgr.get_current_id().unwrap(),
last: meta.last, length: meta.len as u16, data: data_slice
status: meta.status, length: meta.len as u16, data: data_slice
})?
} else {
error!("Error receiving message slice");