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authorPaul Greenwalt <paul.greenwalt@intel.com>2022-04-28 14:11:42 -0700
committerTony Nguyen <anthony.l.nguyen@intel.com>2022-05-17 10:37:09 -0700
commit31b6298fd8e29effe9ed6b77351ac5969be56ce0 (patch)
treea706a3b6780f3845735877b2fa5c06c432c5d414 /net/mptcp
parent4503cc7fdf9a84cd631b0cb8ecb3c9b1bdbf3594 (diff)
downloadlinux-31b6298fd8e29effe9ed6b77351ac5969be56ce0.tar.bz2
ice: fix possible under reporting of ethtool Tx and Rx statistics
The hardware statistics counters are not cleared during resets so the drivers first access is to initialize the baseline and then subsequent reads are for reporting the counters. The statistics counters are read during the watchdog subtask when the interface is up. If the baseline is not initialized before the interface is up, then there can be a brief window in which some traffic can be transmitted/received before the initial baseline reading takes place. Directly initialize ethtool statistics in driver open so the baseline will be initialized when the interface is up, and any dropped packets incremented before the interface is up won't be reported. Fixes: 28dc1b86f8ea9 ("ice: ignore dropped packets during init") Signed-off-by: Paul Greenwalt <paul.greenwalt@intel.com> Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Diffstat (limited to 'net/mptcp')
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