This series adds ARP offload support and ethtool self-tests for the
AMD XGBE 10 Gigabit Ethernet driver.
Patch 1 is a build fix for randconfig coverage.
Patch 2 adds hardware ARP offload functionality that allows the MAC
to automatically respond to ARP requests without CPU intervention,
reducing system latency and power consumption during suspend/resume
and normal operation.
Patches 3 and 4 add ethtool self-tests for ARP offload and RSS
functionality respectively, allowing users to verify these hardware
features are working correctly via 'ethtool -t <interface>'.
The tests are integrated into the existing XGBE self-test framework
that already includes MAC loopback, PHY loopback, split header, and
jumbo frame tests.
Test results example:
$ ethtool -t eth0
The test result is PASS
The test extra info:
MAC Loopback 0
PHY Loopback 0
Split Header 0
Jumbo Frame 0
ARP Offload 0
RSS 0
Changes since v2:
- Fix warnings about line length
- Use kfree_skb() instead of kfree() for skb cleanup in self-tests
- CC maintainer for patch 1
Changes since v1:
- Resubmitting to net-next as this was mistakenly sent to net previously.
- Fix INET=n build breakage reported by kernel test robot
- Ensure ARP self-test cleanup is safe on all error paths (no dangling
packet handler).
- Use link-local IPs for self-tests to avoid interfering with real
network configuration.
Raju Rangoju (4):
amd-xgbe: do not select NET_SELFTESTS when INET is disabled
amd-xgbe: add hardware ARP offload support
amd-xgbe: add ARP offload ethtool self-test
amd-xgbe: add RSS ethtool self-test
drivers/net/ethernet/amd/Kconfig | 2 +-
drivers/net/ethernet/amd/xgbe/xgbe-common.h | 3 +
drivers/net/ethernet/amd/xgbe/xgbe-dev.c | 24 +++
drivers/net/ethernet/amd/xgbe/xgbe-selftest.c | 154 +++++++++++++++++-
drivers/net/ethernet/amd/xgbe/xgbe.h | 4 +
include/net/selftests.h | 1 +
6 files changed, 186 insertions(+), 2 deletions(-)
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2.34.1