netdev - [RFC PATCH v3 net-next 0/7] sfc: per-queue stats

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Message-ID: <cover.1726593632.git.ecree.xilinx@gmail.com>
Date: Wed, 18 Sep 2024 17:14:22 +0100
From: <edward.cree@....com>
To: <linux-net-drivers@....com>, <davem@...emloft.net>, <kuba@...nel.org>,
	<edumazet@...gle.com>, <pabeni@...hat.com>
CC: Edward Cree <ecree.xilinx@...il.com>, <netdev@...r.kernel.org>,
	<habetsm.xilinx@...il.com>, <jacob.e.keller@...el.com>
Subject: [RFC PATCH v3 net-next 0/7] sfc: per-queue stats

From: Edward Cree <ecree.xilinx@...il.com>

This series implements the netdev_stat_ops interface for per-queue
 statistics in the sfc driver, partly using existing counters that
 were originally added for ethtool -S output.

Changed in v3:
* make TX stats count completions rather than enqueues
* add new patch #4 to account for XDP TX separately from netdev
  traffic and include it in base_stats
* move the tx_queue->old_* members out of the fastpath cachelines
* note on patch #6 that our hw_gso stats still count enqueues
* RFC since net-next is closed right now

Changed in v2:
* exclude (dedicated) XDP TXQ stats from per-queue TX stats
* explain patch #3 better

Edward Cree (7):
  sfc: remove obsolete counters from struct efx_channel
  sfc: implement basic per-queue stats
  sfc: add n_rx_overlength to ethtool stats
  sfc: account XDP TXes in netdev base stats
  sfc: implement per-queue rx drop and overrun stats
  sfc: implement per-queue TSO (hw_gso) stats
  sfc: add per-queue RX bytes stats

 drivers/net/ethernet/sfc/ef100_rx.c       |   5 +-
 drivers/net/ethernet/sfc/efx.c            | 109 ++++++++++++++++++++++
 drivers/net/ethernet/sfc/efx_channels.c   |   6 ++
 drivers/net/ethernet/sfc/efx_channels.h   |   7 ++
 drivers/net/ethernet/sfc/ethtool_common.c |   3 +-
 drivers/net/ethernet/sfc/net_driver.h     |  47 +++++++++-
 drivers/net/ethernet/sfc/rx.c             |   5 +-
 drivers/net/ethernet/sfc/rx_common.c      |   3 +
 drivers/net/ethernet/sfc/tx.c             |   6 +-
 drivers/net/ethernet/sfc/tx_common.c      |  33 +++++--
 drivers/net/ethernet/sfc/tx_common.h      |   4 +-
 11 files changed, 210 insertions(+), 18 deletions(-)