ice: check (DD | EOF) bits on Rx descriptor rather than (EOP | RS)
stable inclusion from stable-v5.10.135 commit 9ed6f97c8d77d0c06a70bc0189bf4c0cc8fd0144 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5ZWFM Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9ed6f97c8d77d0c06a70bc0189bf4c0cc8fd0144 -------------------------------- commit 283d736f upstream. Tx side sets EOP and RS bits on descriptors to indicate that a particular descriptor is the last one and needs to generate an irq when it was sent. These bits should not be checked on completion path regardless whether it's the Tx or the Rx. DD bit serves this purpose and it indicates that a particular descriptor is either for Rx or was successfully Txed. EOF is also set as loopback test does not xmit fragmented frames. Look at (DD | EOF) bits setting in ice_lbtest_receive_frames() instead of EOP and RS pair. Fixes: 0e674aeb ("ice: Add handler for ethtool selftest") Signed-off-by: NMaciej Fijalkowski <maciej.fijalkowski@intel.com> Tested-by: NGeorge Kuruvinakunnel <george.kuruvinakunnel@intel.com> Signed-off-by: NTony Nguyen <anthony.l.nguyen@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com> Reviewed-by: NWei Li <liwei391@huawei.com>
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