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Once 20 have >> accumulated, the next failure is final, and the device stays down until >> the driver is reloaded. This is seen in Meta's fleet on hosts with >> recurring Tx timeouts: >> >> [ 2176.496801] idpf 0016:01:00.0 eth1: Detected Tx timeout: Count 21, Queue 11 >> [ 2176.508763] idpf 0016:01:00.0: Device HW Reset initiated >> [ 2237.412541] idpf 0016:01:00.0: Transaction timed-out (op:1 cookie:9800 vc_op:1 salt:98 timeout:60000ms) >> [ 2237.412578] idpf 0016:01:00.0: Failed to establish mailbox communications with hardware >> >> Clear mb_wait_count once the handshake succeeds, so the limit applies >> to consecutive failures only. >> >> Fixes: 4930fbf419a7 ("idpf: add core init and interrupt request") >> Signed-off-by: Breno Leitao > > Reviewed-by: Simon Horman > > Tony, maybe this should be routed via the iwl tree? Hi Simon, Yea, I'll take this through IWL. Thanks, Tony