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authorAleksandr Loktionov <[email protected]>2025-01-06 22:19:20 +0000
committerJakub Kicinski <[email protected]>2025-01-08 02:16:02 +0000
commit07af482e646539d3cc12bc85040fe02f39ae3761 (patch)
treed0c2e5f065f9d96c55cd83b289ecf0c1211eedc5 /drivers/net/ethernet/intel/igc/igc_main.c
parentixgbevf: Fix passing 0 to ERR_PTR in ixgbevf_run_xdp() (diff)
downloadkernel-07af482e646539d3cc12bc85040fe02f39ae3761.tar.gz
kernel-07af482e646539d3cc12bc85040fe02f39ae3761.zip
i40e: add ability to reset VF for Tx and Rx MDD events
Implement "mdd-auto-reset-vf" priv-flag to handle Tx and Rx MDD events for VFs. This flag is also used in other network adapters like ICE. Usage: - "on" - The problematic VF will be automatically reset if a malformed descriptor is detected. - "off" - The problematic VF will be disabled. In cases where a VF sends malformed packets classified as malicious, it can cause the Tx queue to freeze, rendering it unusable for several minutes. When an MDD event occurs, this new implementation allows for a graceful VF reset to quickly restore operational state. Currently, VF queues are disabled if an MDD event occurs. This patch adds the ability to reset the VF if a Tx or Rx MDD event occurs. It also includes MDD event logging throttling to avoid dmesg pollution and unifies the format of Tx and Rx MDD messages. Note: Standard message rate limiting functions like dev_info_ratelimited() do not meet our requirements. Custom rate limiting is implemented, please see the code for details. Co-developed-by: Jan Sokolowski <[email protected]> Signed-off-by: Jan Sokolowski <[email protected]> Co-developed-by: Padraig J Connolly <[email protected]> Signed-off-by: Padraig J Connolly <[email protected]> Signed-off-by: Aleksandr Loktionov <[email protected]> Reviewed-by: Michal Schmidt <[email protected]> Tested-by: Rafal Romanowski <[email protected]> Signed-off-by: Tony Nguyen <[email protected]> Link: https://patch.msgid.link/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/net/ethernet/intel/igc/igc_main.c')
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