forked from M-Labs/artiq
runtime: fix DRTIO aux channel race condition
This commit is contained in:
parent
970d1bf147
commit
62642957cd
@ -1,6 +1,6 @@
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use core::cell::RefCell;
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use kernel_proto as kern;
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use sched::{Io, Error as SchedError};
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use sched::{Io, Mutex, Error as SchedError};
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use session::{kern_acknowledge, kern_send, Error};
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use rtio_mgt;
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use urc::Urc;
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@ -11,14 +11,20 @@ use board_artiq::spi as local_spi;
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#[cfg(has_drtio)]
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mod remote_i2c {
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use drtioaux;
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use rtio_mgt::drtio;
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use sched::{Io, Mutex};
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fn basic_reply(linkno: u8) -> Result<(), ()> {
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match drtioaux::recv_timeout(linkno, None) {
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pub fn start(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8) -> Result<(), ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::I2cStartRequest {
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destination: destination,
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busno: busno
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});
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match reply {
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Ok(drtioaux::Packet::I2cBasicReply { succeeded }) => {
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if succeeded { Ok(()) } else { Err(()) }
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}
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Ok(_) => {
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error!("received unexpected aux packet");
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Ok(packet) => {
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error!("received unexpected aux packet: {:?}", packet);
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Err(())
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}
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Err(e) => {
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@ -28,49 +34,53 @@ mod remote_i2c {
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}
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}
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pub fn start(linkno: u8, destination: u8, busno: u8) -> Result<(), ()> {
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let request = drtioaux::Packet::I2cStartRequest {
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pub fn restart(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8) -> Result<(), ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::I2cRestartRequest {
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destination: destination,
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busno: busno
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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});
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match reply {
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Ok(drtioaux::Packet::I2cBasicReply { succeeded }) => {
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if succeeded { Ok(()) } else { Err(()) }
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}
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Ok(packet) => {
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error!("received unexpected aux packet: {:?}", packet);
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Err(())
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}
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Err(e) => {
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error!("aux packet error ({})", e);
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Err(())
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}
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}
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basic_reply(linkno)
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}
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pub fn restart(linkno: u8, destination: u8, busno: u8) -> Result<(), ()> {
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let request = drtioaux::Packet::I2cRestartRequest {
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pub fn stop(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8) -> Result<(), ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::I2cStopRequest {
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destination: destination,
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busno: busno
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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});
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match reply {
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Ok(drtioaux::Packet::I2cBasicReply { succeeded }) => {
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if succeeded { Ok(()) } else { Err(()) }
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}
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Ok(packet) => {
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error!("received unexpected aux packet: {:?}", packet);
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Err(())
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}
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Err(e) => {
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error!("aux packet error ({})", e);
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Err(())
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}
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}
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basic_reply(linkno)
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}
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pub fn stop(linkno: u8, destination: u8, busno: u8) -> Result<(), ()> {
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let request = drtioaux::Packet::I2cStopRequest {
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destination: destination,
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busno: busno
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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}
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basic_reply(linkno)
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}
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pub fn write(linkno: u8, destination: u8, busno: u8, data: u8) -> Result<bool, ()> {
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let request = drtioaux::Packet::I2cWriteRequest {
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pub fn write(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8, data: u8) -> Result<bool, ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::I2cWriteRequest {
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destination: destination,
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busno: busno,
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data: data
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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}
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match drtioaux::recv_timeout(linkno, None) {
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});
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match reply {
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Ok(drtioaux::Packet::I2cWriteReply { succeeded, ack }) => {
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if succeeded { Ok(ack) } else { Err(()) }
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}
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@ -85,16 +95,13 @@ mod remote_i2c {
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}
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}
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pub fn read(linkno: u8, destination: u8, busno: u8, ack: bool) -> Result<u8, ()> {
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let request = drtioaux::Packet::I2cReadRequest {
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pub fn read(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8, ack: bool) -> Result<u8, ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::I2cReadRequest {
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destination: destination,
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busno: busno,
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ack: ack
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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}
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match drtioaux::recv_timeout(linkno, None) {
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});
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match reply {
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Ok(drtioaux::Packet::I2cReadReply { succeeded, data }) => {
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if succeeded { Ok(data) } else { Err(()) }
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}
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@ -113,14 +120,24 @@ mod remote_i2c {
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#[cfg(has_drtio)]
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mod remote_spi {
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use drtioaux;
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use rtio_mgt::drtio;
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use sched::{Io, Mutex};
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fn basic_reply(linkno: u8) -> Result<(), ()> {
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match drtioaux::recv_timeout(linkno, None) {
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pub fn set_config(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8, flags: u8, length: u8, div: u8, cs: u8) -> Result<(), ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::SpiSetConfigRequest {
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destination: destination,
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busno: busno,
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flags: flags,
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length: length,
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div: div,
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cs: cs
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});
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match reply {
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Ok(drtioaux::Packet::SpiBasicReply { succeeded }) => {
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if succeeded { Ok(()) } else { Err(()) }
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}
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Ok(_) => {
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error!("received unexpected aux packet");
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Ok(packet) => {
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error!("received unexpected aux packet: {:?}", packet);
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Err(())
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}
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Err(e) => {
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@ -130,47 +147,38 @@ mod remote_spi {
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}
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}
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pub fn set_config(linkno: u8, destination: u8, busno: u8, flags: u8, length: u8, div: u8, cs: u8) -> Result<(), ()> {
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let request = drtioaux::Packet::SpiSetConfigRequest {
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destination: destination,
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busno: busno,
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flags: flags,
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length: length,
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div: div,
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cs: cs
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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}
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basic_reply(linkno)
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}
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pub fn write(linkno: u8, destination: u8, busno: u8, data: u32) -> Result<(), ()> {
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let request = drtioaux::Packet::SpiWriteRequest {
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pub fn write(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8, data: u32) -> Result<(), ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::SpiWriteRequest {
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destination: destination,
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busno: busno,
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data: data
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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});
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match reply {
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Ok(drtioaux::Packet::SpiBasicReply { succeeded }) => {
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if succeeded { Ok(()) } else { Err(()) }
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}
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Ok(packet) => {
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error!("received unexpected aux packet: {:?}", packet);
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Err(())
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}
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Err(e) => {
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error!("aux packet error ({})", e);
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Err(())
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}
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}
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basic_reply(linkno)
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}
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pub fn read(linkno: u8, destination: u8, busno: u8) -> Result<u32, ()> {
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let request = drtioaux::Packet::SpiReadRequest {
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pub fn read(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, busno: u8) -> Result<u32, ()> {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::SpiReadRequest {
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destination: destination,
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busno: busno
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};
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if drtioaux::send(linkno, &request).is_err() {
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return Err(())
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}
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match drtioaux::recv_timeout(linkno, None) {
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});
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match reply {
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Ok(drtioaux::Packet::SpiReadReply { succeeded, data }) => {
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if succeeded { Ok(data) } else { Err(()) }
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}
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Ok(_) => {
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error!("received unexpected aux packet");
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Ok(packet) => {
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error!("received unexpected aux packet: {:?}", packet);
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Err(())
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}
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Err(e) => {
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@ -184,7 +192,7 @@ mod remote_spi {
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#[cfg(has_drtio)]
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macro_rules! dispatch {
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($mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
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($io:ident, $aux_mutex:ident, $mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
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let destination = ($busno >> 16) as u8;
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let busno = $busno as u8;
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let hop = $routing_table.0[destination as usize][0];
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@ -192,27 +200,27 @@ macro_rules! dispatch {
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$mod_local::$func(busno, $($param, )*)
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} else {
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let linkno = hop - 1;
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$mod_remote::$func(linkno, destination, busno, $($param, )*)
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$mod_remote::$func($io, $aux_mutex, linkno, destination, busno, $($param, )*)
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}
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}}
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}
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#[cfg(not(has_drtio))]
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macro_rules! dispatch {
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($mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
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($io:ident, $aux_mutex:ident,$mod_local:ident, $mod_remote:ident, $routing_table:ident, $busno:expr, $func:ident $(, $param:expr)*) => {{
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let busno = $busno as u8;
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$mod_local::$func(busno, $($param, )*)
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}}
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}
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pub fn process_kern_hwreq(io: &Io,
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pub fn process_kern_hwreq(io: &Io, aux_mutex: &Mutex,
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_routing_table: &drtio_routing::RoutingTable,
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_up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>,
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request: &kern::Message) -> Result<bool, Error<SchedError>> {
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match request {
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&kern::RtioInitRequest => {
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info!("resetting RTIO");
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rtio_mgt::init_core(false);
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rtio_mgt::init_core(io, aux_mutex, false);
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kern_acknowledge()
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}
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@ -228,42 +236,42 @@ pub fn process_kern_hwreq(io: &Io,
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}
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&kern::I2cStartRequest { busno } => {
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let succeeded = dispatch!(local_i2c, remote_i2c, _routing_table, busno, start).is_ok();
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let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, start).is_ok();
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kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
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}
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&kern::I2cRestartRequest { busno } => {
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let succeeded = dispatch!(local_i2c, remote_i2c, _routing_table, busno, restart).is_ok();
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let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, restart).is_ok();
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kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
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}
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&kern::I2cStopRequest { busno } => {
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let succeeded = dispatch!(local_i2c, remote_i2c, _routing_table, busno, stop).is_ok();
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let succeeded = dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, stop).is_ok();
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kern_send(io, &kern::I2cBasicReply { succeeded: succeeded })
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}
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&kern::I2cWriteRequest { busno, data } => {
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match dispatch!(local_i2c, remote_i2c, _routing_table, busno, write, data) {
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match dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, write, data) {
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Ok(ack) => kern_send(io, &kern::I2cWriteReply { succeeded: true, ack: ack }),
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Err(_) => kern_send(io, &kern::I2cWriteReply { succeeded: false, ack: false })
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}
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}
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&kern::I2cReadRequest { busno, ack } => {
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match dispatch!(local_i2c, remote_i2c, _routing_table, busno, read, ack) {
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match dispatch!(io, aux_mutex, local_i2c, remote_i2c, _routing_table, busno, read, ack) {
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Ok(data) => kern_send(io, &kern::I2cReadReply { succeeded: true, data: data }),
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Err(_) => kern_send(io, &kern::I2cReadReply { succeeded: false, data: 0xff })
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}
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}
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&kern::SpiSetConfigRequest { busno, flags, length, div, cs } => {
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let succeeded = dispatch!(local_spi, remote_spi, _routing_table, busno,
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let succeeded = dispatch!(io, aux_mutex, local_spi, remote_spi, _routing_table, busno,
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set_config, flags, length, div, cs).is_ok();
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kern_send(io, &kern::SpiBasicReply { succeeded: succeeded })
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},
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&kern::SpiWriteRequest { busno, data } => {
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let succeeded = dispatch!(local_spi, remote_spi, _routing_table, busno,
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let succeeded = dispatch!(io, aux_mutex, local_spi, remote_spi, _routing_table, busno,
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write, data).is_ok();
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kern_send(io, &kern::SpiBasicReply { succeeded: succeeded })
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}
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&kern::SpiReadRequest { busno } => {
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match dispatch!(local_spi, remote_spi, _routing_table, busno, read) {
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match dispatch!(io, aux_mutex, local_spi, remote_spi, _routing_table, busno, read) {
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Ok(data) => kern_send(io, &kern::SpiReadReply { succeeded: true, data: data }),
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Err(_) => kern_send(io, &kern::SpiReadReply { succeeded: false, data: 0 })
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}
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@ -289,22 +289,25 @@ fn startup_ethernet() {
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drtio_routing::RoutingTable::default_empty()));
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let up_destinations = urc::Urc::new(RefCell::new(
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[false; drtio_routing::DEST_COUNT]));
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let aux_mutex = sched::Mutex::new();
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let mut scheduler = sched::Scheduler::new();
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let io = scheduler.io();
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rtio_mgt::startup(&io, &drtio_routing_table, &up_destinations);
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rtio_mgt::startup(&io, &aux_mutex, &drtio_routing_table, &up_destinations);
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io.spawn(4096, mgmt::thread);
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{
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let aux_mutex = aux_mutex.clone();
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let drtio_routing_table = drtio_routing_table.clone();
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let up_destinations = up_destinations.clone();
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io.spawn(16384, move |io| { session::thread(io, &drtio_routing_table, &up_destinations) });
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io.spawn(16384, move |io| { session::thread(io, &aux_mutex, &drtio_routing_table, &up_destinations) });
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}
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#[cfg(any(has_rtio_moninj, has_drtio))]
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{
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let aux_mutex = aux_mutex.clone();
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let drtio_routing_table = drtio_routing_table.clone();
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io.spawn(4096, move |io| { moninj::thread(io, &drtio_routing_table) });
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io.spawn(4096, move |io| { moninj::thread(io, &aux_mutex, &drtio_routing_table) });
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}
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#[cfg(has_rtio_analyzer)]
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io.spawn(4096, analyzer::thread);
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@ -3,7 +3,7 @@ use core::cell::RefCell;
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use io::Error as IoError;
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use moninj_proto::*;
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use sched::{Io, TcpListener, TcpStream, Error as SchedError};
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use sched::{Io, Mutex, TcpListener, TcpStream, Error as SchedError};
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use urc::Urc;
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use board_misoc::clock;
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use board_artiq::drtio_routing;
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@ -50,21 +50,16 @@ mod local_moninj {
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#[cfg(has_drtio)]
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mod remote_moninj {
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use drtioaux;
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use rtio_mgt::drtio;
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use sched::{Io, Mutex};
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pub fn read_probe(linkno: u8, destination: u8, channel: u16, probe: u8) -> u32 {
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let request = drtioaux::Packet::MonitorRequest {
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pub fn read_probe(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, channel: u16, probe: u8) -> u32 {
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let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::MonitorRequest {
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destination: destination,
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channel: channel,
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probe: probe
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};
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match drtioaux::send(linkno, &request) {
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Ok(_) => (),
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Err(e) => {
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error!("aux packet error ({})", e);
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return 0;
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}
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}
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match drtioaux::recv_timeout(linkno, None) {
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});
|
||||
match reply {
|
||||
Ok(drtioaux::Packet::MonitorReply { value }) => return value,
|
||||
Ok(packet) => error!("received unexpected aux packet: {:?}", packet),
|
||||
Err(e) => error!("aux packet error ({})", e)
|
||||
@ -72,33 +67,23 @@ mod remote_moninj {
|
||||
0
|
||||
}
|
||||
|
||||
pub fn inject(linkno: u8, destination: u8, channel: u16, overrd: u8, value: u8) {
|
||||
let request = drtioaux::Packet::InjectionRequest {
|
||||
pub fn inject(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, channel: u16, overrd: u8, value: u8) {
|
||||
let _lock = aux_mutex.lock(io).unwrap();
|
||||
drtioaux::send(linkno, &drtioaux::Packet::InjectionRequest {
|
||||
destination: destination,
|
||||
channel: channel,
|
||||
overrd: overrd,
|
||||
value: value
|
||||
};
|
||||
match drtioaux::send(linkno, &request) {
|
||||
Ok(_) => (),
|
||||
Err(e) => error!("aux packet error ({})", e)
|
||||
}
|
||||
}).unwrap();
|
||||
}
|
||||
|
||||
pub fn read_injection_status(linkno: u8, destination: u8, channel: u16, overrd: u8) -> u8 {
|
||||
let request = drtioaux::Packet::InjectionStatusRequest {
|
||||
pub fn read_injection_status(io: &Io, aux_mutex: &Mutex, linkno: u8, destination: u8, channel: u16, overrd: u8) -> u8 {
|
||||
let reply = drtio::aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::InjectionStatusRequest {
|
||||
destination: destination,
|
||||
channel: channel,
|
||||
overrd: overrd
|
||||
};
|
||||
match drtioaux::send(linkno, &request) {
|
||||
Ok(_) => (),
|
||||
Err(e) => {
|
||||
error!("aux packet error ({})", e);
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
match drtioaux::recv_timeout(linkno, None) {
|
||||
});
|
||||
match reply {
|
||||
Ok(drtioaux::Packet::InjectionStatusReply { value }) => return value,
|
||||
Ok(packet) => error!("received unexpected aux packet: {:?}", packet),
|
||||
Err(e) => error!("aux packet error ({})", e)
|
||||
@ -109,7 +94,7 @@ mod remote_moninj {
|
||||
|
||||
#[cfg(has_drtio)]
|
||||
macro_rules! dispatch {
|
||||
($routing_table:ident, $channel:expr, $func:ident $(, $param:expr)*) => {{
|
||||
($io:ident, $aux_mutex:ident, $routing_table:ident, $channel:expr, $func:ident $(, $param:expr)*) => {{
|
||||
let destination = ($channel >> 16) as u8;
|
||||
let channel = $channel as u16;
|
||||
let hop = $routing_table.0[destination as usize][0];
|
||||
@ -117,20 +102,20 @@ macro_rules! dispatch {
|
||||
local_moninj::$func(channel, $($param, )*)
|
||||
} else {
|
||||
let linkno = hop - 1;
|
||||
remote_moninj::$func(linkno, destination, channel, $($param, )*)
|
||||
remote_moninj::$func($io, $aux_mutex, linkno, destination, channel, $($param, )*)
|
||||
}
|
||||
}}
|
||||
}
|
||||
|
||||
#[cfg(not(has_drtio))]
|
||||
macro_rules! dispatch {
|
||||
($routing_table:ident, $channel:expr, $func:ident $(, $param:expr)*) => {{
|
||||
($io:ident, $aux_mutex:ident, $routing_table:ident, $channel:expr, $func:ident $(, $param:expr)*) => {{
|
||||
let channel = $channel as u16;
|
||||
local_moninj::$func(channel, $($param, )*)
|
||||
}}
|
||||
}
|
||||
|
||||
fn connection_worker(io: &Io, _routing_table: &drtio_routing::RoutingTable,
|
||||
fn connection_worker(io: &Io, _aux_mutex: &Mutex, _routing_table: &drtio_routing::RoutingTable,
|
||||
mut stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
|
||||
let mut probe_watch_list = BTreeMap::new();
|
||||
let mut inject_watch_list = BTreeMap::new();
|
||||
@ -159,9 +144,9 @@ fn connection_worker(io: &Io, _routing_table: &drtio_routing::RoutingTable,
|
||||
let _ = inject_watch_list.remove(&(channel, overrd));
|
||||
}
|
||||
},
|
||||
HostMessage::Inject { channel, overrd, value } => dispatch!(_routing_table, channel, inject, overrd, value),
|
||||
HostMessage::Inject { channel, overrd, value } => dispatch!(io, _aux_mutex, _routing_table, channel, inject, overrd, value),
|
||||
HostMessage::GetInjectionStatus { channel, overrd } => {
|
||||
let value = dispatch!(_routing_table, channel, read_injection_status, overrd);
|
||||
let value = dispatch!(io, _aux_mutex, _routing_table, channel, read_injection_status, overrd);
|
||||
let reply = DeviceMessage::InjectionStatus {
|
||||
channel: channel,
|
||||
overrd: overrd,
|
||||
@ -178,7 +163,7 @@ fn connection_worker(io: &Io, _routing_table: &drtio_routing::RoutingTable,
|
||||
|
||||
if clock::get_ms() > next_check {
|
||||
for (&(channel, probe), previous) in probe_watch_list.iter_mut() {
|
||||
let current = dispatch!(_routing_table, channel, read_probe, probe);
|
||||
let current = dispatch!(io, _aux_mutex, _routing_table, channel, read_probe, probe);
|
||||
if previous.is_none() || previous.unwrap() != current {
|
||||
let message = DeviceMessage::MonitorStatus {
|
||||
channel: channel,
|
||||
@ -193,7 +178,7 @@ fn connection_worker(io: &Io, _routing_table: &drtio_routing::RoutingTable,
|
||||
}
|
||||
}
|
||||
for (&(channel, overrd), previous) in inject_watch_list.iter_mut() {
|
||||
let current = dispatch!(_routing_table, channel, read_injection_status, overrd);
|
||||
let current = dispatch!(io, _aux_mutex, _routing_table, channel, read_injection_status, overrd);
|
||||
if previous.is_none() || previous.unwrap() != current {
|
||||
let message = DeviceMessage::InjectionStatus {
|
||||
channel: channel,
|
||||
@ -214,17 +199,18 @@ fn connection_worker(io: &Io, _routing_table: &drtio_routing::RoutingTable,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>) {
|
||||
pub fn thread(io: Io, aux_mutex: &Mutex, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>) {
|
||||
let listener = TcpListener::new(&io, 2047);
|
||||
listener.listen(1383).expect("moninj: cannot listen");
|
||||
|
||||
loop {
|
||||
let aux_mutex = aux_mutex.clone();
|
||||
let routing_table = routing_table.clone();
|
||||
let stream = listener.accept().expect("moninj: cannot accept").into_handle();
|
||||
io.spawn(16384, move |io| {
|
||||
let routing_table = routing_table.borrow();
|
||||
let mut stream = TcpStream::from_handle(&io, stream);
|
||||
match connection_worker(&io, &routing_table, &mut stream) {
|
||||
match connection_worker(&io, &aux_mutex, &routing_table, &mut stream) {
|
||||
Ok(()) => {},
|
||||
Err(err) => error!("moninj aborted: {}", err)
|
||||
}
|
||||
|
||||
@ -7,6 +7,7 @@ use board_misoc::clock;
|
||||
use board_misoc::config;
|
||||
use board_artiq::drtio_routing;
|
||||
use sched::Io;
|
||||
use sched::Mutex;
|
||||
|
||||
#[cfg(has_rtio_crg)]
|
||||
pub mod crg {
|
||||
@ -47,16 +48,18 @@ pub mod drtio {
|
||||
use super::*;
|
||||
use drtioaux;
|
||||
|
||||
pub fn startup(io: &Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
pub fn startup(io: &Io, aux_mutex: &Mutex,
|
||||
routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {
|
||||
unsafe {
|
||||
csr::drtio_transceiver::stable_clkin_write(1);
|
||||
}
|
||||
let aux_mutex = aux_mutex.clone();
|
||||
let routing_table = routing_table.clone();
|
||||
let up_destinations = up_destinations.clone();
|
||||
io.spawn(4096, move |io| {
|
||||
let routing_table = routing_table.borrow();
|
||||
link_thread(io, &routing_table, &up_destinations);
|
||||
link_thread(io, &aux_mutex, &routing_table, &up_destinations);
|
||||
});
|
||||
}
|
||||
|
||||
@ -87,26 +90,6 @@ pub mod drtio {
|
||||
}
|
||||
}
|
||||
|
||||
fn ping_remote(linkno: u8, io: &Io) -> u32 {
|
||||
let mut count = 0;
|
||||
loop {
|
||||
if !link_rx_up(linkno) {
|
||||
return 0
|
||||
}
|
||||
count += 1;
|
||||
if count > 200 {
|
||||
return 0;
|
||||
}
|
||||
drtioaux::send(linkno, &drtioaux::Packet::EchoRequest).unwrap();
|
||||
io.sleep(100).unwrap();
|
||||
let pr = drtioaux::recv(linkno);
|
||||
match pr {
|
||||
Ok(Some(drtioaux::Packet::EchoReply)) => return count,
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
fn recv_aux_timeout(io: &Io, linkno: u8, timeout: u32) -> Result<drtioaux::Packet, &'static str> {
|
||||
let max_time = clock::get_ms() + timeout as u64;
|
||||
loop {
|
||||
@ -125,7 +108,35 @@ pub mod drtio {
|
||||
}
|
||||
}
|
||||
|
||||
fn sync_tsc(io: &Io, linkno: u8) -> Result<(), &'static str> {
|
||||
pub fn aux_transact(io: &Io, aux_mutex: &Mutex,
|
||||
linkno: u8, request: &drtioaux::Packet) -> Result<drtioaux::Packet, &'static str> {
|
||||
let _lock = aux_mutex.lock(io).unwrap();
|
||||
drtioaux::send(linkno, request).unwrap();
|
||||
recv_aux_timeout(io, linkno, 200)
|
||||
}
|
||||
|
||||
fn ping_remote(io: &Io, aux_mutex: &Mutex, linkno: u8) -> u32 {
|
||||
let mut count = 0;
|
||||
loop {
|
||||
if !link_rx_up(linkno) {
|
||||
return 0
|
||||
}
|
||||
count += 1;
|
||||
if count > 100 {
|
||||
return 0;
|
||||
}
|
||||
let reply = aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::EchoRequest);
|
||||
match reply {
|
||||
Ok(drtioaux::Packet::EchoReply) => return count,
|
||||
_ => {}
|
||||
}
|
||||
io.relinquish().unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
fn sync_tsc(io: &Io, aux_mutex: &Mutex, linkno: u8) -> Result<(), &'static str> {
|
||||
let _lock = aux_mutex.lock(io).unwrap();
|
||||
|
||||
unsafe {
|
||||
(csr::DRTIO[linkno as usize].set_time_write)(1);
|
||||
while (csr::DRTIO[linkno as usize].set_time_read)() == 1 {}
|
||||
@ -140,14 +151,13 @@ pub mod drtio {
|
||||
}
|
||||
}
|
||||
|
||||
fn load_routing_table(io: &Io, linkno: u8, routing_table: &drtio_routing::RoutingTable)
|
||||
fn load_routing_table(io: &Io, aux_mutex: &Mutex, linkno: u8, routing_table: &drtio_routing::RoutingTable)
|
||||
-> Result<(), &'static str> {
|
||||
for i in 0..drtio_routing::DEST_COUNT {
|
||||
drtioaux::send(linkno, &drtioaux::Packet::RoutingSetPath {
|
||||
let reply = aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::RoutingSetPath {
|
||||
destination: i as u8,
|
||||
hops: routing_table.0[i]
|
||||
}).unwrap();
|
||||
let reply = recv_aux_timeout(io, linkno, 200)?;
|
||||
})?;
|
||||
if reply != drtioaux::Packet::RoutingAck {
|
||||
return Err("unexpected reply");
|
||||
}
|
||||
@ -155,11 +165,10 @@ pub mod drtio {
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn set_rank(io: &Io, linkno: u8, rank: u8) -> Result<(), &'static str> {
|
||||
drtioaux::send(linkno, &drtioaux::Packet::RoutingSetRank {
|
||||
fn set_rank(io: &Io, aux_mutex: &Mutex, linkno: u8, rank: u8) -> Result<(), &'static str> {
|
||||
let reply = aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::RoutingSetRank {
|
||||
rank: rank
|
||||
}).unwrap();
|
||||
let reply = recv_aux_timeout(io, linkno, 200)?;
|
||||
})?;
|
||||
if reply != drtioaux::Packet::RoutingAck {
|
||||
return Err("unexpected reply");
|
||||
}
|
||||
@ -179,7 +188,8 @@ pub mod drtio {
|
||||
}
|
||||
}
|
||||
|
||||
fn process_unsolicited_aux(linkno: u8) {
|
||||
fn process_unsolicited_aux(io: &Io, aux_mutex: &Mutex, linkno: u8) {
|
||||
let _lock = aux_mutex.lock(io).unwrap();
|
||||
match drtioaux::recv(linkno) {
|
||||
Ok(Some(packet)) => warn!("[LINK#{}] unsolicited aux packet: {:?}", linkno, packet),
|
||||
Ok(None) => (),
|
||||
@ -227,7 +237,7 @@ pub mod drtio {
|
||||
up_destinations[destination as usize]
|
||||
}
|
||||
|
||||
fn destination_survey(io: &Io, routing_table: &drtio_routing::RoutingTable,
|
||||
fn destination_survey(io: &Io, aux_mutex: &Mutex, routing_table: &drtio_routing::RoutingTable,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {
|
||||
for destination in 0..drtio_routing::DEST_COUNT {
|
||||
let hop = routing_table.0[destination][0];
|
||||
@ -242,10 +252,10 @@ pub mod drtio {
|
||||
let linkno = hop - 1;
|
||||
if destination_up(up_destinations, destination) {
|
||||
if link_up(linkno) {
|
||||
drtioaux::send(linkno, &drtioaux::Packet::DestinationStatusRequest {
|
||||
let reply = aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::DestinationStatusRequest {
|
||||
destination: destination
|
||||
}).unwrap();
|
||||
match recv_aux_timeout(io, linkno, 200) {
|
||||
});
|
||||
match reply {
|
||||
Ok(drtioaux::Packet::DestinationDownReply) =>
|
||||
destination_set_up(routing_table, up_destinations, destination, false),
|
||||
Ok(drtioaux::Packet::DestinationOkReply) => (),
|
||||
@ -263,10 +273,10 @@ pub mod drtio {
|
||||
}
|
||||
} else {
|
||||
if link_up(linkno) {
|
||||
drtioaux::send(linkno, &drtioaux::Packet::DestinationStatusRequest {
|
||||
let reply = aux_transact(io, aux_mutex, linkno, &drtioaux::Packet::DestinationStatusRequest {
|
||||
destination: destination
|
||||
}).unwrap();
|
||||
match recv_aux_timeout(io, linkno, 200) {
|
||||
});
|
||||
match reply {
|
||||
Ok(drtioaux::Packet::DestinationDownReply) => (),
|
||||
Ok(drtioaux::Packet::DestinationOkReply) => {
|
||||
destination_set_up(routing_table, up_destinations, destination, true);
|
||||
@ -281,7 +291,8 @@ pub mod drtio {
|
||||
}
|
||||
}
|
||||
|
||||
pub fn link_thread(io: Io, routing_table: &drtio_routing::RoutingTable,
|
||||
pub fn link_thread(io: Io, aux_mutex: &Mutex,
|
||||
routing_table: &drtio_routing::RoutingTable,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {
|
||||
loop {
|
||||
for linkno in 0..csr::DRTIO.len() {
|
||||
@ -289,7 +300,7 @@ pub mod drtio {
|
||||
if link_up(linkno) {
|
||||
/* link was previously up */
|
||||
if link_rx_up(linkno) {
|
||||
process_unsolicited_aux(linkno);
|
||||
process_unsolicited_aux(&io, aux_mutex, linkno);
|
||||
process_local_errors(linkno);
|
||||
} else {
|
||||
info!("[LINK#{}] link is down", linkno);
|
||||
@ -299,17 +310,17 @@ pub mod drtio {
|
||||
/* link was previously down */
|
||||
if link_rx_up(linkno) {
|
||||
info!("[LINK#{}] link RX became up, pinging", linkno);
|
||||
let ping_count = ping_remote(linkno, &io);
|
||||
let ping_count = ping_remote(&io, aux_mutex, linkno);
|
||||
if ping_count > 0 {
|
||||
info!("[LINK#{}] remote replied after {} packets", linkno, ping_count);
|
||||
set_link_up(linkno, true);
|
||||
if let Err(e) = sync_tsc(&io, linkno) {
|
||||
if let Err(e) = sync_tsc(&io, aux_mutex, linkno) {
|
||||
error!("[LINK#{}] failed to sync TSC ({})", linkno, e);
|
||||
}
|
||||
if let Err(e) = load_routing_table(&io, linkno, routing_table) {
|
||||
if let Err(e) = load_routing_table(&io, aux_mutex, linkno, routing_table) {
|
||||
error!("[LINK#{}] failed to load routing table ({})", linkno, e);
|
||||
}
|
||||
if let Err(e) = set_rank(&io, linkno, 1) {
|
||||
if let Err(e) = set_rank(&io, aux_mutex, linkno, 1) {
|
||||
error!("[LINK#{}] failed to set rank ({})", linkno, e);
|
||||
}
|
||||
info!("[LINK#{}] link initialization completed", linkno);
|
||||
@ -319,18 +330,18 @@ pub mod drtio {
|
||||
}
|
||||
}
|
||||
}
|
||||
destination_survey(&io, routing_table, up_destinations);
|
||||
destination_survey(&io, aux_mutex, routing_table, up_destinations);
|
||||
io.sleep(200).unwrap();
|
||||
}
|
||||
}
|
||||
|
||||
pub fn init() {
|
||||
pub fn init(io: &Io, aux_mutex: &Mutex) {
|
||||
for linkno in 0..csr::DRTIO.len() {
|
||||
let linkno = linkno as u8;
|
||||
if link_up(linkno) {
|
||||
drtioaux::send(linkno,
|
||||
&drtioaux::Packet::ResetRequest { phy: false }).unwrap();
|
||||
match drtioaux::recv_timeout(linkno, None) {
|
||||
let reply = aux_transact(io, aux_mutex, linkno,
|
||||
&drtioaux::Packet::ResetRequest { phy: false });
|
||||
match reply {
|
||||
Ok(drtioaux::Packet::ResetAck) => (),
|
||||
Ok(_) => error!("[LINK#{}] reset failed, received unexpected aux packet", linkno),
|
||||
Err(e) => error!("[LINK#{}] reset failed, aux packet error ({})", linkno, e)
|
||||
@ -344,9 +355,10 @@ pub mod drtio {
|
||||
pub mod drtio {
|
||||
use super::*;
|
||||
|
||||
pub fn startup(_io: &Io, _routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
pub fn startup(_io: &Io, _aux_mutex: &Mutex,
|
||||
_routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
_up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {}
|
||||
pub fn init() {}
|
||||
pub fn init(_io: &Io, _aux_mutex: &Mutex) {}
|
||||
pub fn link_up(_linkno: u8) -> bool { false }
|
||||
}
|
||||
|
||||
@ -372,7 +384,8 @@ fn async_error_thread(io: Io) {
|
||||
}
|
||||
}
|
||||
|
||||
pub fn startup(io: &Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
pub fn startup(io: &Io, aux_mutex: &Mutex,
|
||||
routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {
|
||||
#[cfg(has_rtio_crg)]
|
||||
{
|
||||
@ -413,17 +426,17 @@ pub fn startup(io: &Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>
|
||||
}
|
||||
}
|
||||
|
||||
drtio::startup(io, routing_table, up_destinations);
|
||||
init_core(true);
|
||||
drtio::startup(io, aux_mutex, routing_table, up_destinations);
|
||||
init_core(io, aux_mutex, true);
|
||||
io.spawn(4096, async_error_thread);
|
||||
}
|
||||
|
||||
pub fn init_core(phy: bool) {
|
||||
pub fn init_core(io: &Io, aux_mutex: &Mutex, phy: bool) {
|
||||
unsafe {
|
||||
csr::rtio_core::reset_write(1);
|
||||
if phy {
|
||||
csr::rtio_core::reset_phy_write(1);
|
||||
}
|
||||
}
|
||||
drtio::init()
|
||||
drtio::init(io, aux_mutex)
|
||||
}
|
||||
|
||||
@ -273,7 +273,7 @@ impl Mutex {
|
||||
Mutex(Urc::new(Cell::new(false)))
|
||||
}
|
||||
|
||||
pub fn lock<'a>(&'a self, io: Io) -> Result<MutexGuard<'a>, Error> {
|
||||
pub fn lock<'a>(&'a self, io: &Io) -> Result<MutexGuard<'a>, Error> {
|
||||
io.until(|| !self.0.get())?;
|
||||
self.0.set(true);
|
||||
Ok(MutexGuard(&*self.0))
|
||||
|
||||
@ -6,7 +6,7 @@ use io::{Read, Write, Error as IoError};
|
||||
use board_misoc::{ident, cache, config};
|
||||
use {mailbox, rpc_queue, kernel};
|
||||
use urc::Urc;
|
||||
use sched::{ThreadHandle, Io, TcpListener, TcpStream, Error as SchedError};
|
||||
use sched::{ThreadHandle, Io, Mutex, TcpListener, TcpStream, Error as SchedError};
|
||||
use rtio_mgt;
|
||||
use rtio_dma::Manager as DmaManager;
|
||||
use cache::Cache;
|
||||
@ -324,7 +324,7 @@ fn process_host_message(io: &Io,
|
||||
Ok(())
|
||||
}
|
||||
|
||||
fn process_kern_message(io: &Io,
|
||||
fn process_kern_message(io: &Io, aux_mutex: &Mutex,
|
||||
routing_table: &drtio_routing::RoutingTable,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>,
|
||||
mut stream: Option<&mut TcpStream>,
|
||||
@ -345,7 +345,7 @@ fn process_kern_message(io: &Io,
|
||||
|
||||
kern_recv_dotrace(request);
|
||||
|
||||
if kern_hwreq::process_kern_hwreq(io, routing_table, up_destinations, request)? {
|
||||
if kern_hwreq::process_kern_hwreq(io, aux_mutex, routing_table, up_destinations, request)? {
|
||||
return Ok(false)
|
||||
}
|
||||
|
||||
@ -494,7 +494,7 @@ fn process_kern_queued_rpc(stream: &mut TcpStream,
|
||||
})
|
||||
}
|
||||
|
||||
fn host_kernel_worker(io: &Io,
|
||||
fn host_kernel_worker(io: &Io, aux_mutex: &Mutex,
|
||||
routing_table: &drtio_routing::RoutingTable,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>,
|
||||
stream: &mut TcpStream,
|
||||
@ -513,7 +513,7 @@ fn host_kernel_worker(io: &Io,
|
||||
}
|
||||
|
||||
if mailbox::receive() != 0 {
|
||||
process_kern_message(io,
|
||||
process_kern_message(io, aux_mutex,
|
||||
routing_table, up_destinations,
|
||||
Some(stream), &mut session)?;
|
||||
}
|
||||
@ -534,7 +534,7 @@ fn host_kernel_worker(io: &Io,
|
||||
}
|
||||
}
|
||||
|
||||
fn flash_kernel_worker(io: &Io,
|
||||
fn flash_kernel_worker(io: &Io, aux_mutex: &Mutex,
|
||||
routing_table: &drtio_routing::RoutingTable,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>,
|
||||
congress: &mut Congress,
|
||||
@ -559,7 +559,7 @@ fn flash_kernel_worker(io: &Io,
|
||||
}
|
||||
|
||||
if mailbox::receive() != 0 {
|
||||
if process_kern_message(io, routing_table, up_destinations, None, &mut session)? {
|
||||
if process_kern_message(io, aux_mutex, routing_table, up_destinations, None, &mut session)? {
|
||||
return Ok(())
|
||||
}
|
||||
}
|
||||
@ -591,7 +591,8 @@ fn respawn<F>(io: &Io, handle: &mut Option<ThreadHandle>, f: F)
|
||||
*handle = Some(io.spawn(16384, f))
|
||||
}
|
||||
|
||||
pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
pub fn thread(io: Io, aux_mutex: &Mutex,
|
||||
routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
up_destinations: &Urc<RefCell<[bool; drtio_routing::DEST_COUNT]>>) {
|
||||
let listener = TcpListener::new(&io, 65535);
|
||||
listener.listen(1381).expect("session: cannot listen");
|
||||
@ -601,6 +602,7 @@ pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
|
||||
let mut kernel_thread = None;
|
||||
{
|
||||
let aux_mutex = aux_mutex.clone();
|
||||
let routing_table = routing_table.clone();
|
||||
let up_destinations = up_destinations.clone();
|
||||
let congress = congress.clone();
|
||||
@ -608,7 +610,7 @@ pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
let routing_table = routing_table.borrow();
|
||||
let mut congress = congress.borrow_mut();
|
||||
info!("running startup kernel");
|
||||
match flash_kernel_worker(&io, &routing_table, &up_destinations, &mut congress, "startup_kernel") {
|
||||
match flash_kernel_worker(&io, &aux_mutex, &routing_table, &up_destinations, &mut congress, "startup_kernel") {
|
||||
Ok(()) =>
|
||||
info!("startup kernel finished"),
|
||||
Err(Error::KernelNotFound) =>
|
||||
@ -637,6 +639,7 @@ pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
}
|
||||
info!("new connection from {}", stream.remote_endpoint());
|
||||
|
||||
let aux_mutex = aux_mutex.clone();
|
||||
let routing_table = routing_table.clone();
|
||||
let up_destinations = up_destinations.clone();
|
||||
let congress = congress.clone();
|
||||
@ -645,7 +648,7 @@ pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
let routing_table = routing_table.borrow();
|
||||
let mut congress = congress.borrow_mut();
|
||||
let mut stream = TcpStream::from_handle(&io, stream);
|
||||
match host_kernel_worker(&io, &routing_table, &up_destinations, &mut stream, &mut *congress) {
|
||||
match host_kernel_worker(&io, &aux_mutex, &routing_table, &up_destinations, &mut stream, &mut *congress) {
|
||||
Ok(()) => (),
|
||||
Err(Error::Protocol(host::Error::Io(IoError::UnexpectedEnd))) =>
|
||||
info!("connection closed"),
|
||||
@ -663,13 +666,14 @@ pub fn thread(io: Io, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>,
|
||||
if kernel_thread.as_ref().map_or(true, |h| h.terminated()) {
|
||||
info!("no connection, starting idle kernel");
|
||||
|
||||
let aux_mutex = aux_mutex.clone();
|
||||
let routing_table = routing_table.clone();
|
||||
let up_destinations = up_destinations.clone();
|
||||
let congress = congress.clone();
|
||||
respawn(&io, &mut kernel_thread, move |io| {
|
||||
let routing_table = routing_table.borrow();
|
||||
let mut congress = congress.borrow_mut();
|
||||
match flash_kernel_worker(&io, &routing_table, &up_destinations, &mut *congress, "idle_kernel") {
|
||||
match flash_kernel_worker(&io, &aux_mutex, &routing_table, &up_destinations, &mut *congress, "idle_kernel") {
|
||||
Ok(()) =>
|
||||
info!("idle kernel finished, standing by"),
|
||||
Err(Error::Protocol(host::Error::Io(
|
||||
|
||||
Loading…
Reference in New Issue
Block a user