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[intel-next,0/2] ice: bring up XDP_TX back to life

Message ID 20210601113236.42651-1-maciej.fijalkowski@intel.com (mailing list archive)
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Series ice: bring up XDP_TX back to life | expand

Message

Fijalkowski, Maciej June 1, 2021, 11:32 a.m. UTC 
Hi there,

here are the improvements for handling the XDP_TX/REDIRECT actions in
ice driver. People have been recently reporting that they stumble upon a
situation where no packets are xmitted when they do XDP_TX from their
BPF programs - first patch addresses that.

Second patch handles the case where we could not have XDP ring per core.
Let's consider that as a starting point of fixing Intel drivers against
that scenario.

Note that this is based on the series that I sent two weeks ago:
https://lore.kernel.org/bpf/20210520063500.62037-1-maciej.fijalkowski@intel.com/

Parametrizing of ice_vsi_cfg_txqs/ice_vsi_stop_tx_rings is needed for a
fallback path.

Thanks!

Maciej Fijalkowski (2):
  ice: unify xdp_rings accesses
  ice: introduce XDP Tx fallback path

 drivers/net/ethernet/intel/ice/ice.h          | 37 +++++++++
 drivers/net/ethernet/intel/ice/ice_base.c     |  5 ++
 drivers/net/ethernet/intel/ice/ice_lib.c      |  4 +-
 drivers/net/ethernet/intel/ice/ice_main.c     | 76 ++++++++++++++++++-
 drivers/net/ethernet/intel/ice/ice_txrx.c     | 62 ++++++++++++++-
 drivers/net/ethernet/intel/ice/ice_txrx.h     |  2 +
 drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 13 +++-
 7 files changed, 191 insertions(+), 8 deletions(-)