runtime: support mgmt over drtio

artiq/firmware/libproto_artiq/mgmt_proto.rs

@@ -16,7 +16,9 @@ pub enum Error<T> {
     #[fail(display = "invalid UTF-8: {}", _0)]
     Utf8(Utf8Error),
     #[fail(display = "{}", _0)]
-    Io(#[cause] IoError<T>)
+    Io(#[cause] IoError<T>),
+    #[fail(display = "drtio error")]
+    DrtioError,
 }
 
 impl<T> From<IoError<T>> for Error<T> {

artiq/firmware/runtime/main.rs

@@ -206,7 +206,13 @@ fn startup() {
 
     rtio_mgt::startup(&io, &aux_mutex, &drtio_routing_table, &up_destinations, &ddma_mutex, &subkernel_mutex);
 
-    io.spawn(4096, mgmt::thread);
+    {
+        let aux_mutex = aux_mutex.clone();
+        let ddma_mutex = ddma_mutex.clone();
+        let subkernel_mutex = subkernel_mutex.clone();
+        let drtio_routing_table = drtio_routing_table.clone();
+        io.spawn(4096, move |io| { mgmt::thread(io, &aux_mutex, &ddma_mutex, &subkernel_mutex, &drtio_routing_table) });
+    }
     {
         let aux_mutex = aux_mutex.clone();
         let drtio_routing_table = drtio_routing_table.clone();

artiq/firmware/runtime/mgmt.rs

@@ -1,10 +1,10 @@
-use log::{self, LevelFilter};
+use core::cell::RefCell;
 
-use io::{Write, ProtoWrite, Error as IoError};
+use board_artiq::drtio_routing;
-use board_misoc::{config, spiflash};
+use io::{ProtoRead, Write, Error as IoError};
-use logger_artiq::BufferLogger;
 use mgmt_proto::*;
-use sched::{Io, TcpListener, TcpStream, Error as SchedError};
+use sched::{Io, Mutex, TcpListener, TcpStream, Error as SchedError};
+use urc::Urc;
 
 impl From<SchedError> for Error<SchedError> {
     fn from(value: SchedError) -> Error<SchedError> {
@@ -12,121 +12,536 @@ impl From<SchedError> for Error<SchedError> {
     }
 }
 
-fn worker(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+mod local_coremgmt {
+    use alloc::{string::String, vec::Vec};
+    use log::LevelFilter;
+
+    use board_misoc::{config, spiflash};
+    use io::{Write, ProtoWrite, Error as IoError};
+    use logger_artiq::BufferLogger;
+    use mgmt_proto::{Error, Reply};
+    use sched::{Io, TcpStream, Error as SchedError};
+
+
+    pub fn get_log(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        BufferLogger::with(|logger| {
+            let mut buffer = io.until_ok(|| logger.buffer())?;
+            Reply::LogContent(buffer.extract()).write_to(stream)
+        })?;
+        Ok(())
+    }
+
+    pub fn clear_log(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        BufferLogger::with(|logger| -> Result<(), IoError<SchedError>> {
+            let mut buffer = io.until_ok(|| logger.buffer())?;
+            Ok(buffer.clear())
+        })?;
+
+        Reply::Success.write_to(stream)?;
+        Ok(())
+    }
+
+    pub fn pull_log(io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        BufferLogger::with(|logger| -> Result<(), IoError<SchedError>> {
+            loop {
+                // Do this *before* acquiring the buffer, since that sets the log level
+                // to OFF.
+                let log_level = log::max_level();
+
+                let mut buffer = io.until_ok(|| logger.buffer())?;
+                if buffer.is_empty() { continue }
+
+                stream.write_string(buffer.extract())?;
+
+                if log_level == LevelFilter::Trace {
+                    // Hold exclusive access over the logger until we get positive
+                    // acknowledgement; otherwise we get an infinite loop of network
+                    // trace messages being transmitted and causing more network
+                    // trace messages to be emitted.
+                    //
+                    // Any messages unrelated to this management socket that arrive
+                    // while it is flushed are lost, but such is life.
+                    stream.flush()?;
+                }
+
+                // Clear the log *after* flushing the network buffers, or we're just
+                // going to resend all the trace messages on the next iteration.
+                buffer.clear();
+            }
+        })?;
+        Ok(())
+    }
+
+    pub fn set_log_filter(_io: &Io, stream: &mut TcpStream, level: LevelFilter) -> Result<(), Error<SchedError>> {
+        info!("changing log level to {}", level);
+        log::set_max_level(level);
+        Reply::Success.write_to(stream)?;
+        Ok(())
+    }
+
+    pub fn set_uart_log_filter(_io: &Io, stream: &mut TcpStream, level: LevelFilter) -> Result<(), Error<SchedError>> {
+        info!("changing UART log level to {}", level);
+        BufferLogger::with(|logger|
+            logger.set_uart_log_level(level));
+        Reply::Success.write_to(stream)?;
+        Ok(())
+    }
+
+    pub fn config_read(_io: &Io, stream: &mut TcpStream, key: &String) -> Result<(), Error<SchedError>>{
+        config::read(key, |result| {
+            match result {
+                Ok(value) => Reply::ConfigData(&value).write_to(stream),
+                Err(_)    => Reply::Error.write_to(stream)
+            }
+        })?;
+        Ok(())
+    }
+
+    pub fn config_write(_io: &Io, stream: &mut TcpStream, key: &String, value: &Vec<u8>) -> Result<(), Error<SchedError>> {
+        match config::write(key, value) {
+            Ok(_)  => Reply::Success.write_to(stream),
+            Err(_) => Reply::Error.write_to(stream)
+        }?;
+        Ok(())
+    }
+
+    pub fn config_remove(_io: &Io, stream: &mut TcpStream, key: &String) -> Result<(), Error<SchedError>> {
+        match config::remove(key) {
+            Ok(()) => Reply::Success.write_to(stream),
+            Err(_) => Reply::Error.write_to(stream)
+        }?;
+        Ok(())
+    }
+
+    pub fn config_erase(_io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        match config::erase() {
+            Ok(()) => Reply::Success.write_to(stream),
+            Err(_) => Reply::Error.write_to(stream)
+        }?;
+        Ok(())
+    }
+
+    pub fn reboot(_io: &Io, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        Reply::RebootImminent.write_to(stream)?;
+        stream.close()?;
+        stream.flush()?;
+
+        warn!("restarting");
+        unsafe { spiflash::reload(); }
+    }
+
+    pub fn debug_allocator(_io: &Io, _stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        unsafe { println!("{}", ::ALLOC) }
+        Ok(())
+    }
+}
+
+#[cfg(has_drtio)]
+mod remote_coremgmt {
+    use alloc::{string::String, vec::Vec};
+    use log::LevelFilter;
+
+    use board_artiq::{drtioaux::Packet, drtio_routing};
+    use io::{Cursor, ProtoWrite};
+    use mgmt_proto::{Error, Reply};
+    use rtio_mgt::drtio;
+    use sched::{Io, Mutex, TcpStream, Error as SchedError};
+    use proto_artiq::drtioaux_proto::MASTER_PAYLOAD_MAX_SIZE;
+
+
+    impl From<drtio::Error> for Error<SchedError> {
+        fn from(_value: drtio::Error) -> Error<SchedError> {
+            Error::DrtioError
+        }
+    }
+
+    pub fn get_log(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        let mut buffer = String::new();
+        loop {
+            let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+                &Packet::CoreMgmtGetLogRequest { destination, clear: false }
+            );
+            
+            match reply {
+                Ok(Packet::CoreMgmtGetLogReply { last, length, data }) => {
+                    buffer.push_str(
+                        core::str::from_utf8(&data[..length as usize]).map_err(|_| Error::DrtioError)?);
+                    if last {
+                        Reply::LogContent(&buffer).write_to(stream)?;
+                        return Ok(());
+                    }
+                }
+                Ok(packet) => {
+                    error!("received unexpected aux packet: {:?}", packet);
+                    Reply::Error.write_to(stream)?;
+                    return Err(drtio::Error::UnexpectedReply.into());
+                }
+                Err(e) => {
+                    error!("aux packet error ({})", e);
+                    Reply::Error.write_to(stream)?;
+                    return Err(e.into());
+                }
+            }
+        }
+    }
+
+    pub fn clear_log(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtClearLogRequest { destination }
+        );
+
+        match reply {
+            Ok(Packet::CoreMgmtAck) => {
+                Reply::Success.write_to(stream)?;
+                Ok(())
+            }
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Reply::Error.write_to(stream)?;
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            }
+        }
+    }
+
+    pub fn pull_log(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        loop {
+            let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+                &Packet::CoreMgmtGetLogRequest { destination, clear: true }
+            );
+
+            match reply {
+                Ok(Packet::CoreMgmtGetLogReply { last: _, length, data }) => {
+                    stream.write_bytes(&data[..length as usize])?;
+                }
+                Ok(packet) => {
+                    error!("received unexpected aux packet: {:?}", packet);
+                    return Err(drtio::Error::UnexpectedReply.into());
+                }
+                Err(e) => {
+                    error!("aux packet error ({})", e);
+                    return Err(e.into());
+                }
+            }
+        }
+    }
+
+    pub fn set_log_filter(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream, level: LevelFilter) -> Result<(), Error<SchedError>> {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtSetLogLevelRequest { destination, log_level: level as u8 }
+        );
+
+        match reply {
+            Ok(Packet::CoreMgmtAck) => {
+                Reply::Success.write_to(stream)?;
+                Ok(())
+            }
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Reply::Error.write_to(stream)?;
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            }
+        }
+    }
+
+    pub fn set_uart_log_filter(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream, level: LevelFilter) -> Result<(), Error<SchedError>> {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtSetUartLogLevelRequest { destination, log_level: level as u8 }
+        );
+
+        match reply {
+            Ok(Packet::CoreMgmtAck) => {
+                Reply::Success.write_to(stream)?;
+                Ok(())
+            }
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Reply::Error.write_to(stream)?;
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            }
+        }
+    }
+
+    pub fn config_read(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream, key: &String) -> Result<(), Error<SchedError>> {
+        let mut config_key: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
+        let len = key.len();
+        config_key[..len].clone_from_slice(key.as_bytes());
+
+        let mut reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtConfigReadRequest {
+                destination: destination,
+                length: len as u16,
+                key: config_key,
+            }
+        );
+
+        let mut buffer = Vec::<u8>::new();
+        loop {
+            match reply {
+                Ok(Packet::CoreMgmtConfigReadReply { length, last, value }) => {
+                    buffer.extend(&value[..length as usize]);
+
+                    if last {
+                        Reply::ConfigData(&value[..length as usize]).write_to(stream)?;
+                        return Ok(());
+                    }
+
+                    reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+                        &Packet::CoreMgmtConfigReadContinue {
+                            destination: destination,
+                        }
+                    );
+                }
+                Ok(packet) => {
+                    error!("received unexpected aux packet: {:?}", packet);
+                    Reply::Error.write_to(stream)?;
+                    return Err(drtio::Error::UnexpectedReply.into());
+                }
+                Err(e) => {
+                    error!("aux packet error ({})", e);
+                    Reply::Error.write_to(stream)?;
+                    return Err(e.into());
+                }
+            }
+        }
+    }
+
+    pub fn config_write(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream, key: &String, value: &Vec<u8>) -> Result<(), Error<SchedError>> {
+        let mut message = Cursor::new(Vec::with_capacity(key.len() + value.len() + 4 * 2));
+        message.write_string(key).unwrap();
+        message.write_bytes(value).unwrap();
+
+        match drtio::partition_data(message.get_ref(), |slice, status, len: usize| {
+            let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno, 
+                &Packet::CoreMgmtConfigWriteRequest {
+                    destination: destination, length: len as u16, last: status.is_last(), data: *slice});
+            match reply {
+                Ok(Packet::CoreMgmtAck) => Ok(()),
+                Ok(packet) => {
+                    error!("received unexpected aux packet: {:?}", packet);
+                    Err(drtio::Error::UnexpectedReply)
+                }
+                Err(e) => {
+                    error!("aux packet error ({})", e);
+                    Err(e)
+                }
+            }
+        }) {
+            Ok(()) => {
+                Reply::Success.write_to(stream)?;
+                Ok(())
+            },
+            Err(e) => {
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            },
+        }
+    }
+
+    pub fn config_remove(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream, key: &String) -> Result<(), Error<SchedError>> {
+        let mut config_key: [u8; MASTER_PAYLOAD_MAX_SIZE] = [0; MASTER_PAYLOAD_MAX_SIZE];
+        let len = key.len();
+        config_key[..len].clone_from_slice(key.as_bytes());
+
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtConfigRemoveRequest {
+                destination: destination,
+                length: key.len() as u16,
+                key: config_key,
+            });
+
+        match reply {
+            Ok(Packet::CoreMgmtAck) => {
+                Reply::Success.write_to(stream)?;
+                Ok(())
+            }
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Reply::Error.write_to(stream)?;
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            }
+        }
+    }
+
+    pub fn config_erase(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtConfigEraseRequest {
+                destination: destination,
+            });
+        
+        match reply {
+            Ok(Packet::CoreMgmtAck) => {
+                Reply::Success.write_to(stream)?;
+                Ok(())
+            }
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Reply::Error.write_to(stream)?;
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            }
+        }
+    }
+
+    pub fn reboot(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtRebootRequest {
+                destination: destination,
+            });
+        
+        match reply {
+            Ok(Packet::CoreMgmtAck) => {
+                Reply::RebootImminent.write_to(stream)?;
+                Ok(())
+            }
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Reply::Error.write_to(stream)?;
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Reply::Error.write_to(stream)?;
+                Err(e.into())
+            }
+        }
+    }
+
+    pub fn debug_allocator(io: &Io, aux_mutex: &Mutex,
+        ddma_mutex: &Mutex, subkernel_mutex: &Mutex, 
+        routing_table: &drtio_routing::RoutingTable, linkno: u8,
+        destination: u8, _stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
+        let reply = drtio::aux_transact(io, aux_mutex, ddma_mutex, subkernel_mutex, routing_table, linkno,
+            &Packet::CoreMgmtAllocatorDebugRequest {
+                destination: destination,
+            });
+
+        match reply {
+            Ok(Packet::CoreMgmtAck) => Ok(()),
+            Ok(packet) => {
+                error!("received unexpected aux packet: {:?}", packet);
+                Err(drtio::Error::UnexpectedReply.into())
+            }
+            Err(e) => {
+                error!("aux packet error ({})", e);
+                Err(e.into())
+            }
+        }
+    }
+}
+
+#[cfg(has_drtio)]
+macro_rules! process {
+    ($io:ident, $aux_mutex:ident, $ddma_mutex:ident, $subkernel_mutex:ident, $routing_table:ident, $tcp_stream:ident, $destination: ident, $func:ident $(, $param:expr)*) => {{
+        let hop = $routing_table.0[$destination as usize][0];
+        if hop == 0 {
+            local_coremgmt::$func($io, $tcp_stream, $($param, )*)
+        } else {
+            let linkno = hop - 1;
+            remote_coremgmt::$func($io, $aux_mutex, $ddma_mutex, $subkernel_mutex, $routing_table, linkno, $destination, $tcp_stream, $($param, )*)
+        }
+    }}
+}
+
+#[cfg(not(has_drtio))]
+macro_rules! process {
+    ($io:ident, $aux_mutex:ident, $ddma_mutex:ident, $subkernel_mutex:ident, $routing_table:ident, $tcp_stream:ident, $_destination: ident, $func:ident $(, $param:expr)*) => {{
+        local_coremgmt::$func($io, $tcp_stream, $($param, )*)
+    }}
+}
+
+fn worker(io: &Io, _aux_mutex: &Mutex, _ddma_mutex: &Mutex, _subkernel_mutex: &Mutex,
+    _routing_table: &drtio_routing::RoutingTable, stream: &mut TcpStream) -> Result<(), Error<SchedError>> {
     read_magic(stream)?;
+    let _destination = stream.read_u8()?;
     Write::write_all(stream, "e".as_bytes())?;
     info!("new connection from {}", stream.remote_endpoint());
 
     loop {
         match Request::read_from(stream)? {
-            Request::GetLog => {
+            Request::GetLog => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, get_log),
-                BufferLogger::with(|logger| {
+            Request::ClearLog => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, clear_log),
-                    let mut buffer = io.until_ok(|| logger.buffer())?;
+            Request::PullLog => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, pull_log),
-                    Reply::LogContent(buffer.extract()).write_to(stream)
+            Request::SetLogFilter(level) => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, set_log_filter, level),
-                })?;
+            Request::SetUartLogFilter(level) => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, set_uart_log_filter, level),
-            }
+            Request::ConfigRead { ref key } => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, config_read, key),
-            Request::ClearLog => {
+            Request::ConfigWrite { ref key, ref value } => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, config_write, key, value),
-                BufferLogger::with(|logger| -> Result<(), Error<SchedError>> {
+            Request::ConfigRemove { ref key } => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, config_remove, key),
-                    let mut buffer = io.until_ok(|| logger.buffer())?;
+            Request::ConfigErase => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, config_erase),
-                    Ok(buffer.clear())
+            Request::Reboot => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, reboot),
-                })?;
+            Request::DebugAllocator => process!(io, _aux_mutex, _ddma_mutex, _subkernel_mutex, _routing_table, stream, _destination, debug_allocator),
-
+        }?;
-                Reply::Success.write_to(stream)?;
-            }
-            Request::PullLog => {
-                BufferLogger::with(|logger| -> Result<(), Error<SchedError>> {
-                    loop {
-                        // Do this *before* acquiring the buffer, since that sets the log level
-                        // to OFF.
-                        let log_level = log::max_level();
-
-                        let mut buffer = io.until_ok(|| logger.buffer())?;
-                        if buffer.is_empty() { continue }
-
-                        stream.write_string(buffer.extract())?;
-
-                        if log_level == LevelFilter::Trace {
-                            // Hold exclusive access over the logger until we get positive
-                            // acknowledgement; otherwise we get an infinite loop of network
-                            // trace messages being transmitted and causing more network
-                            // trace messages to be emitted.
-                            //
-                            // Any messages unrelated to this management socket that arrive
-                            // while it is flushed are lost, but such is life.
-                            stream.flush()?;
-                        }
-
-                        // Clear the log *after* flushing the network buffers, or we're just
-                        // going to resend all the trace messages on the next iteration.
-                        buffer.clear();
-                    }
-                })?;
-            }
-            Request::SetLogFilter(level) => {
-                info!("changing log level to {}", level);
-                log::set_max_level(level);
-                Reply::Success.write_to(stream)?;
-            }
-            Request::SetUartLogFilter(level) => {
-                info!("changing UART log level to {}", level);
-                BufferLogger::with(|logger|
-                    logger.set_uart_log_level(level));
-                Reply::Success.write_to(stream)?;
-            }
-
-            Request::ConfigRead { ref key } => {
-                config::read(key, |result| {
-                    match result {
-                        Ok(value) => Reply::ConfigData(&value).write_to(stream),
-                        Err(_)    => Reply::Error.write_to(stream)
-                    }
-                })?;
-            }
-            Request::ConfigWrite { ref key, ref value } => {
-                match config::write(key, value) {
-                    Ok(_)  => Reply::Success.write_to(stream),
-                    Err(_) => Reply::Error.write_to(stream)
-                }?;
-            }
-            Request::ConfigRemove { ref key } => {
-                match config::remove(key) {
-                    Ok(()) => Reply::Success.write_to(stream),
-                    Err(_) => Reply::Error.write_to(stream)
-                }?;
-
-            }
-            Request::ConfigErase => {
-                match config::erase() {
-                    Ok(()) => Reply::Success.write_to(stream),
-                    Err(_) => Reply::Error.write_to(stream)
-                }?;
-            }
-
-            Request::Reboot => {
-                Reply::RebootImminent.write_to(stream)?;
-                stream.close()?;
-                stream.flush()?;
-
-                warn!("restarting");
-                unsafe { spiflash::reload(); }
-            }
-
-            Request::DebugAllocator =>
-                unsafe { println!("{}", ::ALLOC) },
-        };
     }
 }
 
-pub fn thread(io: Io) {
+pub fn thread(io: Io, aux_mutex: &Mutex, ddma_mutex: &Mutex, subkernel_mutex: &Mutex, routing_table: &Urc<RefCell<drtio_routing::RoutingTable>>) {
     let listener = TcpListener::new(&io, 8192);
     listener.listen(1380).expect("mgmt: cannot listen");
     info!("management interface active");
 
     loop {
+        let aux_mutex = aux_mutex.clone();
+        let ddma_mutex = ddma_mutex.clone();
+        let subkernel_mutex = subkernel_mutex.clone();
+        let routing_table = routing_table.clone();
         let stream = listener.accept().expect("mgmt: cannot accept").into_handle();
-        io.spawn(4096, move |io| {
+        io.spawn(16384, move |io| {
+            let routing_table = routing_table.borrow();
             let mut stream = TcpStream::from_handle(&io, stream);
-            match worker(&io, &mut stream) {
+            match worker(&io, &aux_mutex, &ddma_mutex, &subkernel_mutex, &routing_table, &mut stream) {
                 Ok(()) => (),
                 Err(Error::Io(IoError::UnexpectedEnd)) => (),
                 Err(err) => error!("aborted: {}", err)

artiq/firmware/runtime/rtio_mgt.rs

@@ -469,7 +469,7 @@ pub mod drtio {
         }
     }
 
-    fn partition_data<F>(data: &[u8], send_f: F) -> Result<(), Error>
+    pub fn partition_data<F>(data: &[u8], send_f: F) -> Result<(), Error>
             where F: Fn(&[u8; MASTER_PAYLOAD_MAX_SIZE], PayloadStatus, usize) -> Result<(), Error> {
             let mut i = 0;
             while i < data.len() {