This patch series is to enhance IDPF virtchnl error reporting and some minor fixes to the locking sequence in virtchnl message handling we encountered while testing. Also includes a minor clean up with regards to warning we encountered in controlq section of IDPF.
The issue we had here was a virtchnl processing delay leading to the "xn->salt" mismatch, transaction timeout and connection not recovering. This was due to default CPU bounded kworker workqueue for virtchnl message processing being starved by aggressive userspace load causing the virtchnl processing to be delayed and causing a transaction timeout. The reason the virtchnl process kworker was stalled as it was bound to CPU0 by default and there was immense IRQ traffic to CPU0. All of the above with an aggressive user space process on the same core lead to the change from Marco Leogrande to convert the idpf workqueues to unbound. Manoj Vishwanathan (3): idpf: address an rtnl lock splat in tx timeout recovery path idpf: Acquire the lock before accessing the xn->salt idpf: more info during virtchnl transaction time out Marco Leogrande (1): idpf: convert workqueues to unbound Willem de Bruijn (1): idpf: warn on possible ctlq overflow drivers/net/ethernet/intel/idpf/idpf_main.c | 15 ++++++++----- drivers/net/ethernet/intel/idpf/idpf_txrx.c | 14 ++++++++++++- .../net/ethernet/intel/idpf/idpf_virtchnl.c | 21 ++++++++++++++----- 3 files changed, 39 insertions(+), 11 deletions(-) -- 2.46.0.76.ge559c4bf1a-goog
