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[net-next,v2,0/7] net: ethernet: ti: am65-cpsw: Add multi queue RX support

Message ID 20240628-am65-cpsw-multi-rx-v2-0-c399cb77db56@kernel.org (mailing list archive)
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Series net: ethernet: ti: am65-cpsw: Add multi queue RX support | expand

Message

Roger Quadros June 28, 2024, 12:01 p.m. UTC 
Hi,

am65-cpsw can support up to 8 queues at Rx. So far we have
been using only one queue (i.e. default flow) for all RX traffic.

This series adds multi-queue support. The driver starts with
1 RX queue by default. User can increase the RX queues via ethtool,
e.g. 'ethtool -L ethx rx <N>'

The series also adds regmap and regfield support to some of the
ALE registers. It adds Policer/Classifier registers and fields.

Converting the existing ALE control APIs to regfields can be a separate
exercise.

Some helper functions are added to read/write to the Policer/Classifier
registers and a default Classifier setup function is added that
routes packets based on their PCP/DSCP priority to different RX queues.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
---
Changes in v2:
- rebase to net/next
- fixed RX stall issue during iperf
- Link to v1: https://lore.kernel.org/r/20240606-am65-cpsw-multi-rx-v1-0-0704b0cb6fdc@kernel.org

---
Roger Quadros (7):
      net: ethernet: ti: am65-cpsw: Introduce multi queue Rx
      net: ethernet: ti: cpsw_ale: use regfields for ALE registers
      net: ethernet: ti: cpsw_ale: use regfields for number of Entries and Policers
      net: ethernet: ti: cpsw_ale: add Policer and Thread control register fields
      net: ethernet: ti: cpsw_ale: add policer/classifier helpers
      net: ethernet: ti: cpsw_ale: add helper to setup classifier defaults
      net: ethernet: ti: am65-cpsw: setup priority to flow mapping

 drivers/net/ethernet/ti/am65-cpsw-ethtool.c |  59 +++--
 drivers/net/ethernet/ti/am65-cpsw-nuss.c    | 361 ++++++++++++++++------------
 drivers/net/ethernet/ti/am65-cpsw-nuss.h    |  35 +--
 drivers/net/ethernet/ti/cpsw_ale.c          | 273 +++++++++++++++++++--
 drivers/net/ethernet/ti/cpsw_ale.h          |  62 ++++-
 5 files changed, 583 insertions(+), 207 deletions(-)
---
base-commit: 84562f9953ec5f91a4922baa2bd4f2d4f64fac31
change-id: 20240606-am65-cpsw-multi-rx-fb6cf8dea5eb

Best regards,