netdev - [PATCH v4 net-next 0/9] ionic: add XDP support

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Message-ID: <20240214175909.68802-1-shannon.nelson@amd.com>
Date: Wed, 14 Feb 2024 09:59:00 -0800
From: Shannon Nelson <shannon.nelson@....com>
To: <netdev@...r.kernel.org>, <davem@...emloft.net>, <kuba@...nel.org>,
	<edumazet@...gle.com>, <pabeni@...hat.com>
CC: <brett.creeley@....com>, <drivers@...sando.io>, Shannon Nelson
	<shannon.nelson@....com>
Subject: [PATCH v4 net-next 0/9] ionic: add XDP support

This patchset is new support in ionic for XDP processing,
including basic XDP on Rx packets, TX and REDIRECT, and frags
for jumbo frames.

Since ionic has not yet been converted to use the page_pool APIs,
this uses the simple MEM_TYPE_PAGE_ORDER0 buffering.  There are plans
to convert the driver in the near future.

v4:
 - removed "inline" from short utility functions
 - changed to use "goto err_out" in ionic_xdp_register_rxq_info()
 - added "continue" to reduce nesting in ionic_xdp_queues_config()
 - used xdp_prog in ionic_rx_clean() to flag whether or not to sync
   the rx buffer after calling ionix_xdp_run()
 - swapped order of XDP_TX and XDP_REDIRECT cases in ionic_xdp_run()
   to make patch 6 a little cleaner

v3:
https://lore.kernel.org/netdev/20240210004827.53814-1-shannon.nelson@amd.com/
 - removed budget==0 patch, sent it separately to net

v2:
https://lore.kernel.org/netdev/20240208005725.65134-1-shannon.nelson@amd.com/
 - added calls to txq_trans_cond_update()
 - added a new patch to catch NAPI budget==0

v1:
https://lore.kernel.org/netdev/20240130013042.11586-1-shannon.nelson@amd.com/

RFC:
https://lore.kernel.org/netdev/20240118192500.58665-1-shannon.nelson@amd.com/

Shannon Nelson (9):
  ionic: set adminq irq affinity
  ionic: add helpers for accessing buffer info
  ionic: use dma range APIs
  ionic: add initial framework for XDP support
  ionic: Add XDP packet headroom
  ionic: Add XDP_TX support
  ionic: Add XDP_REDIRECT support
  ionic: add ndo_xdp_xmit
  ionic: implement xdp frags support

 .../net/ethernet/pensando/ionic/ionic_dev.h   |  11 +
 .../ethernet/pensando/ionic/ionic_ethtool.c   |   5 +
 .../net/ethernet/pensando/ionic/ionic_lif.c   | 193 +++++++-
 .../net/ethernet/pensando/ionic/ionic_lif.h   |  13 +
 .../net/ethernet/pensando/ionic/ionic_stats.c |  18 +
 .../net/ethernet/pensando/ionic/ionic_txrx.c  | 460 ++++++++++++++++--
 .../net/ethernet/pensando/ionic/ionic_txrx.h  |   1 +
 7 files changed, 663 insertions(+), 38 deletions(-)

-- 
2.17.1