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drivers/network: add ixgbe driver #682

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0d0c4a9
drivers/network: add ixgbe driver
terryzbai Jul 30, 2026
9df960f
benchmark: add cycle counter reading for x86
terryzbai Jul 30, 2026
5206b69
wip: fixes
terryzbai Aug 18, 2026
5bea2f7
wip: remove unreliable instructions
terryzbai Aug 18, 2026
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7 changes: 5 additions & 2 deletions benchmark/idle.c
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Original file line number Diff line number Diff line change
Expand Up @@ -20,13 +20,16 @@ struct bench *b;

static inline uint64_t read_cycle_count()
{
uint64_t cycle_count;
uint64_t cycle_count = 0;
#if defined(CONFIG_ARCH_ARM)
SEL4BENCH_READ_CCNT(cycle_count);
#elif defined(CONFIG_ARCH_RISCV)
asm volatile("rdcycle %0" : "=r"(cycle_count));
#elif defined(CONFIG_ARCH_X86_64)
// Do nothing only for build atm
uint32_t lo, hi, unused;
__asm__ __volatile__("rdtscp" : "=a"(lo), "=d"(hi), "=c"(unused));
__asm__ __volatile__("lfence" ::: "memory");
cycle_count = ((uint64_t)hi << 32) | lo;
Comment on lines +29 to +32

@dreamliner787-9 dreamliner787-9 Aug 17, 2026

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While this works for just measuring CPU utilisation, it is kind of sus because the TSC frequency is != to the CPU frequency. You should use the PMU counter for this kind of job. Given that the ARM and RISC-V already uses the proper cycle counter.

#else
#error "read_cycle_count: unsupported architecture"
#endif
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4 changes: 4 additions & 0 deletions ci/examples/echo_server.py
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Expand Up @@ -47,6 +47,10 @@ async def test(backend: HardwareBackend, test_config: common.TestConfig):
# See https://github.com/au-ts/sddf/issues/698 for details
timeout = 30

if test_config.board.startswith("vb_105"):
# This x86 machine takes around 3 mintues to boot
timeout = 200

Comment on lines +50 to +53

@dreamliner787-9 dreamliner787-9 Aug 19, 2026

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The boot timeout is separate from the test timeout, this shouldn't be here, see https://github.com/au-ts/systems-ci/blob/f1127dfb4c47d0c5bc3512d3678b3434c3835c34/ts_ci/backends/machine_queue.py#L19

So this block should be removed

async with asyncio.timeout(timeout):
await wait_for_output(backend, b"DHCP request finished")
dhcp_client1 = await wait_for_output(backend, b"\r\n")
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28 changes: 28 additions & 0 deletions drivers/network/ixgbe/eth_driver.mk
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@@ -0,0 +1,28 @@
#
# Copyright 2026, UNSW
#
# SPDX-License-Identifier: BSD-2-Clause
#
# Include this snippet in your project Makefile to build
# the IXGBE NIC driver
#
# NOTES
# Generates eth_driver.elf (alternative unique name eth_driver_ixgbe.elf)
# Expects libsddf_util_debug.a to be in LIBS

ETHERNET_DRIVER_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
CHECK_NETDRV_FLAGS_MD5:=.netdrv_cflags-$(shell echo -- ${CFLAGS} ${CFLAGS_network} | shasum | sed 's/ *-//')

${CHECK_NETDRV_FLAGS_MD5}:
-rm -f .netdrv_cflags-*
touch $@

eth_driver_ixgbe.elf: network/ixgbe/ethernet.o
$(LD) $(LDFLAGS) $< $(LIBS) -o $@

network/ixgbe/ethernet.o: ${ETHERNET_DRIVER_DIR}/ethernet.c ${CHECK_NETDRV_FLAGS_MD5}
mkdir -p network/ixgbe
${CC} -c ${CFLAGS} ${CFLAGS_network} -I ${ETHERNET_DRIVER_DIR} -o $@ $<


-include ixgbe/ethernet.d
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