oxidecomputer · mkeeter · Apr 24, 2026 · Mar 25, 2026 · Mar 25, 2026 · Mar 27, 2026
diff --git a/Cargo.lock b/Cargo.lock
diff --git a/app/cosmo/base.toml b/app/cosmo/base.toml
@@ -46,7 +46,7 @@ name = "task-net"
 stacksize = 8000
 priority = 5
 features = ["mgmt", "h753", "cosmo", "vlan", "vpd-mac"]
-max-sizes = {flash = 131072, ram = 65536, sram1_mac = 16384}
+max-sizes = {flash = 131072, ram = 131072, sram1_mac = 16384}
 default-ram = "dtcm"
 sections = {eth_bulk = "sram1_mac"}
 uses = ["eth", "tim16"]
@@ -171,10 +171,11 @@ notifications = ["timer"]
 name = "task-hiffy"
 features = ["h753", "stm32h7", "i2c", "gpio", "spi", "qspi", "hash", "sprot", "turbo"]
 priority = 7
-max-sizes = {flash = 32768, ram = 32768 }
+max-sizes = {flash = 32768, ram = 65536 }
 stacksize = 1200
 start = true
-task-slots = ["sys", "hf", "i2c_driver", "hash_driver", "update_server", "sprot"]
+task-slots = ["sys", "hf", "i2c_driver", "hash_driver", "update_server", "sprot", "net"]
+notifications = ["timer"]
 
 [tasks.cosmo_seq]
 name = "drv-cosmo-seq-server"

diff --git a/app/cosmo/dev.toml b/app/cosmo/dev.toml
@@ -29,9 +29,20 @@ port = 998
 tx = { packets = 3, bytes = 1024 }
 rx = { packets = 3, bytes = 1024 }
 
+[tasks.hiffy]
+features = ["net", "vlan"]
+notifications = ["socket"]
+
 [config.net.sockets.fmc_test]
 kind = "udp"
 owner = {name = "fmc_demo", notification = "socket"}
 port = 11114
 tx = { packets = 3, bytes = 4096 }
 rx = { packets = 3, bytes = 4096 }
+
+[config.net.sockets.hiffy]
+kind = "udp"
+owner = {name = "hiffy", notification = "socket"}
+port = 11115
+tx = { packets = 3, bytes = 32 }
+rx = { packets = 1, bytes = 4096 }
diff --git a/app/demo-stm32f4-discovery/app-f3.toml b/app/demo-stm32f4-discovery/app-f3.toml
@@ -69,6 +69,7 @@ priority = 3
 max-sizes = {flash = 16384, ram = 16384 }
 stacksize = 2048
 start = true
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/demo-stm32f4-discovery/app.toml b/app/demo-stm32f4-discovery/app.toml
@@ -69,6 +69,7 @@ priority = 3
 max-sizes = {flash = 16384, ram = 16384 }
 stacksize = 2048
 start = true
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/demo-stm32g0-nucleo/app-g031.toml b/app/demo-stm32g0-nucleo/app-g031.toml
@@ -56,6 +56,7 @@ start = true
 task-slots = ["sys"]
 stacksize = 912
 features = ["stm32g0", "gpio", "micro", "send"]
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/demo-stm32g0-nucleo/app-g070.toml b/app/demo-stm32g0-nucleo/app-g070.toml
@@ -76,6 +76,7 @@ features = ["no-ipc-counters"]
 priority = 3
 max-sizes = {flash = 8192, ram = 8192 }
 start = true
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/demo-stm32g0-nucleo/app-g0b1.toml.noworky b/app/demo-stm32g0-nucleo/app-g0b1.toml.noworky
@@ -83,6 +83,7 @@ name = "task-hiffy"
 priority = 3
 requires = {flash = 8192, ram = 8192 }
 start = true
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/demo-stm32h7-nucleo/app-h743.toml b/app/demo-stm32h7-nucleo/app-h743.toml
@@ -127,6 +127,7 @@ max-sizes = {flash = 32768, ram = 65536 }
 stacksize = 2048
 start = true
 task-slots = ["sys", "i2c_driver"]
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/demo-stm32h7-nucleo/app-h753.toml b/app/demo-stm32h7-nucleo/app-h753.toml
@@ -153,6 +153,7 @@ max-sizes = {flash = 32768, ram = 65536 }
 stacksize = 2048
 start = true
 task-slots = ["sys", "i2c_driver", "hf", "hash_driver"]
+notifications = ["timer"]
 
 [tasks.hf]
 name = "drv-mock-gimlet-hf-server"

diff --git a/app/donglet/app-g031-i2c.toml b/app/donglet/app-g031-i2c.toml
@@ -49,6 +49,7 @@ start = true
 task-slots = ["sys", "i2c_driver"]
 stacksize = 912
 features = ["stm32g0", "g031", "i2c", "gpio", "send", "no-ipc-counters"]
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/donglet/app-g031.toml b/app/donglet/app-g031.toml
@@ -68,6 +68,7 @@ start = true
 task-slots = ["sys"]
 stacksize = 912
 features = ["stm32g0", "g031", "gpio", "micro", "send"]
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/gemini-bu/app.toml b/app/gemini-bu/app.toml
@@ -124,6 +124,7 @@ max-sizes = {flash = 32768, ram = 16384 }
 stacksize = 2048
 start = true
 task-slots = ["sys", "i2c_driver", "hf", "hash_driver", "sprot", "update_server"]
+notifications = ["timer"]
 
 [tasks.sprot]
 name = "drv-stm32h7-sprot-server"

diff --git a/app/gimlet/base.toml b/app/gimlet/base.toml
@@ -159,6 +159,7 @@ max-sizes = {flash = 32768, ram = 32768 }
 stacksize = 1200
 start = true
 task-slots = ["sys", "hf", "i2c_driver", "hash_driver", "update_server", "sprot"]
+notifications = ["timer"]
 
 [tasks.gimlet_seq]
 name = "drv-gimlet-seq-server"

diff --git a/app/gimletlet/app-mgmt.toml b/app/gimletlet/app-mgmt.toml
@@ -46,6 +46,7 @@ max-sizes = {flash = 32768, ram = 65536 }
 stacksize = 2048
 start = true
 task-slots = ["sys", "user_leds"]
+notifications = ["timer"]
 
 [tasks.net]
 name = "task-net"

diff --git a/app/gimletlet/base-gimletlet2.toml b/app/gimletlet/base-gimletlet2.toml
@@ -85,6 +85,7 @@ priority = 7
 max-sizes = {flash = 32768, ram = 65536}
 stacksize = 2048
 start = true
+notifications = ["timer"]
 
 [tasks.validate]
 name = "task-validate"

diff --git a/app/grapefruit/base.toml b/app/grapefruit/base.toml
@@ -118,8 +118,9 @@ priority = 7
 max-sizes = {flash = 32768, ram = 65536}
 stacksize = 2048
 start = true
-features = ["h753", "stm32h7", "i2c", "gpio", "sprot", "qspi", "hash", "turbo"]
-task-slots = ["i2c_driver", "sys", "user_leds", "sprot", "hf", "hash_driver"]
+features = ["h753", "stm32h7", "i2c", "gpio", "sprot", "qspi", "hash", "turbo", "net", "vlan"]
+task-slots = ["i2c_driver", "sys", "user_leds", "sprot", "hf", "hash_driver", "net"]
+notifications = ["timer", "socket"]
 
 [tasks.validate]
 name = "task-validate"
@@ -276,7 +277,7 @@ name = "task-net"
 stacksize = 8000
 priority = 3
 features = ["h753", "vlan", "grapefruit"]
-max-sizes = {flash = 131072, ram = 65536, sram1_mac = 16384}
+max-sizes = {flash = 131072, ram = 131072, sram1_mac = 16384}
 default-ram = "dtcm"
 sections = {eth_bulk = "sram1_mac"}
 uses = ["eth", "tim16"]
@@ -391,6 +392,13 @@ port = 11114
 tx = { packets = 3, bytes = 4096 }
 rx = { packets = 3, bytes = 4096 }
 
+[config.net.sockets.hiffy]
+kind = "udp"
+owner = {name = "hiffy", notification = "socket"}
+port = 11115
+tx = { packets = 3, bytes = 4096 }
+rx = { packets = 3, bytes = 4096 }
+
 ################################################################################
 
 [config]

diff --git a/app/lpc55xpresso/app.toml b/app/lpc55xpresso/app.toml
@@ -35,6 +35,7 @@ max-sizes = {flash = 32768, ram = 16384 }
 stacksize = 2048
 start = true
 task-slots = ["gpio_driver", "update_server"]
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/medusa/base.toml b/app/medusa/base.toml
@@ -51,6 +51,7 @@ stacksize = 2048
 start = true
 task-slots = ["sys", "i2c_driver"]
 features = ["turbo"]
+notifications = ["timer"]
 
 [tasks.i2c_driver]
 name = "drv-stm32xx-i2c-server"

diff --git a/app/minibar/base.toml b/app/minibar/base.toml
@@ -103,6 +103,7 @@ max-sizes = {flash = 32768, ram = 32768 }
 stacksize = 1200
 start = true
 task-slots = ["sys", "i2c_driver", "sprot"]
+notifications = ["timer"]
 
 [tasks.thermal]
 name = "task-thermal"

diff --git a/app/oxcon2023g0/app.toml b/app/oxcon2023g0/app.toml
@@ -47,6 +47,7 @@ start = true
 task-slots = ["sys", "i2c_driver"]
 stacksize = 912
 features = ["stm32g0", "gpio", "i2c", "g030", "micro"]
+notifications = ["timer"]
 
 [tasks.i2c_driver]
 name = "drv-stm32xx-i2c-server"

@@ -40,6 +40,7 @@ max-sizes = {flash = 32768, ram = 16384 }
 stacksize = 2048
 start = true
 task-slots = ["gpio_driver", "swd", "update_server"]
+notifications = ["timer"]
 
 [tasks.idle]
 name = "task-idle"

diff --git a/app/psc/base.toml b/app/psc/base.toml
@@ -162,6 +162,7 @@ max-sizes = {flash = 32768}
 stacksize = 1200
 start = true
 task-slots = ["sys", "i2c_driver", "sprot"]
+notifications = ["timer"]
 
 [tasks.validate]
 name = "task-validate"

diff --git a/app/rot-carrier/app.toml b/app/rot-carrier/app.toml
@@ -132,6 +132,7 @@ max-sizes = {flash = 32768, ram = 16384 }
 stacksize = 2048
 start = true
 task-slots = ["gpio_driver", "update_server"]
+notifications = ["timer"]
 
 [tasks.attest]
 name = "task-attest"

diff --git a/app/sidecar/base.toml b/app/sidecar/base.toml
@@ -207,6 +207,7 @@ max-sizes = {flash = 32768, ram = 32768 }
 stacksize = 1200
 start = true
 task-slots = ["sys", "i2c_driver", "sprot"]
+notifications = ["timer"]
 
 [tasks.sensor]
 name = "task-sensor"

diff --git a/task/hiffy/Cargo.toml b/task/hiffy/Cargo.toml
@@ -13,6 +13,7 @@ drv-spi-api = { path = "../../drv/spi-api" }
 drv-sprot-api = { path = "../../drv/sprot-api", optional = true }
 drv-stm32xx-i2c = { path = "../../drv/stm32xx-i2c", optional = true  }
 drv-stm32xx-sys-api = { path = "../../drv/stm32xx-sys-api", optional = true }
+task-net-api = { path = "../../task/net-api", optional = true }
 hubris-num-tasks = { path = "../../sys/num-tasks", features = ["task-enum"] }
 ringbuf = { path = "../../lib/ringbuf"  }
 static-cell = { path = "../../lib/static-cell"  }
@@ -63,6 +64,8 @@ micro = ["no-ipc-counters"]
 turbo = []
 panic-messages = ["userlib/panic-messages"]
 spctrl = ["drv-sp-ctrl-api"]
+net = ["task-net-api"]
+vlan = ["task-net-api?/vlan"]
 
 # This section is here to discourage RLS/rust-analyzer from doing test builds,
 # since test builds don't work for cross compilation.

diff --git a/task/hiffy/build.rs b/task/hiffy/build.rs
@@ -2,6 +2,8 @@
 // License, v. 2.0. If a copy of the MPL was not distributed with this
 // file, You can obtain one at https://mozilla.org/MPL/2.0/.
 
-fn main() {
+fn main() -> anyhow::Result<()> {
     build_util::expose_target_board();
+    build_util::build_notifications()?;
+    Ok(())
 }