This patch series introduces support for Receive Side Scaling (RSS)
configuration of GTP (GPRS Tunneling Protocol) flows via the ethtool
interface on virtual function (VF) interfaces in the iavf driver.
The implementation enables fine-grained traffic distribution for
GTP-based mobile workloads, including GTPC and GTPU encapsulations, by
extending the advanced RSS infrastructure. This is particularly beneficial
for virtualized network functions (VNFs) and user plane functions (UPFs)
in 5G and LTE deployments.
Key features:
- Adds new RSS flow segment headers and hash field definitions for GTP
protocols.
- Enhances ethtool parsing logic to support GTP-specific flow types.
- Updates the virtchnl interface to propagate GTP RSS configuration to PF.
- Extends the ICE driver to support GTP RSS configuration for VFs.
changelog:
v5:
- split patch 2/6 int static data and define changes + minor fixes
v5:
-fix NULL ptr dereference and minor improvements in 1/5 & 2/5
v4:
-remove redundant bitmask in iavf_adv_rss.c for dmesg
v3:
-fix kdoc-s in ice_virtchnl_rss.c
v2:
- reduce much repetition with ice_hash_{remove,moveout}() calls
(Przemek, leftover from internal review)
- now applies on Tony's tree
v1/RFC:
https://lore.kernel.org/intel-wired-lan/[email protected]
Aleksandr Loktionov (4):
ice: add flow parsing for GTP and new protocol field support
ice: add virtchnl and VF context support for GTP RSS
ice: improve TCAM priority handling for RSS profiles
iavf: add RSS support for GTP protocol via ethtool
Przemek Kitszel (1):
ice: extend PTYPE bitmap coverage for GTP encapsulated flows
.../net/ethernet/intel/iavf/iavf_adv_rss.c | 119 +-
.../net/ethernet/intel/iavf/iavf_adv_rss.h | 31 +
.../net/ethernet/intel/iavf/iavf_ethtool.c | 89 ++
.../net/ethernet/intel/ice/ice_flex_pipe.c | 91 +-
.../net/ethernet/intel/ice/ice_flex_type.h | 1 +
drivers/net/ethernet/intel/ice/ice_flow.c | 251 ++-
drivers/net/ethernet/intel/ice/ice_flow.h | 94 +-
.../ethernet/intel/ice/ice_protocol_type.h | 20 +
drivers/net/ethernet/intel/ice/ice_vf_lib.h | 48 +
.../net/ethernet/intel/ice/ice_virtchnl_rss.c | 1404 ++++++++++++++++-
include/linux/avf/virtchnl.h | 50 +
11 files changed, 2070 insertions(+), 128 deletions(-)
--
2.47.1
