netdev - [PATCH net-next 00/15][pull request] Intel Wired LAN Driver Updates 2025-01-06 (igb, igc, ixgbe, ixgbevf, i40e, fm10k)

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Message-ID: <20250106221929.956999-1-anthony.l.nguyen@intel.com>
Date: Mon,  6 Jan 2025 14:19:08 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	andrew+netdev@...n.ch,
	netdev@...r.kernel.org
Cc: Tony Nguyen <anthony.l.nguyen@...el.com>
Subject: [PATCH net-next 00/15][pull request] Intel Wired LAN Driver Updates 2025-01-06 (igb, igc, ixgbe, ixgbevf, i40e, fm10k)

For igb:

Sriram Yagnaraman and Kurt Kanzenbach add support for AF_XDP
zero-copy.

Original cover letter:
The first couple of patches adds helper functions to prepare for AF_XDP
zero-copy support which comes in the last couple of patches, one each
for Rx and TX paths.

As mentioned in v1 patchset [0], I don't have access to an actual IGB
device to provide correct performance numbers. I have used Intel 82576EB
emulator in QEMU [1] to test the changes to IGB driver.

The tests use one isolated vCPU for RX/TX and one isolated vCPU for the
xdp-sock application [2]. Hope these measurements provide at the least
some indication on the increase in performance when using ZC, especially
in the TX path. It would be awesome if someone with a real IGB NIC can
test the patch.

AF_XDP performance using 64 byte packets in Kpps.
Benchmark:	XDP-SKB		XDP-DRV		XDP-DRV(ZC)
rxdrop		220		235		350
txpush		1.000		1.000		410
l2fwd 		1.000		1.000		200

AF_XDP performance using 1500 byte packets in Kpps.
Benchmark:	XDP-SKB		XDP-DRV		XDP-DRV(ZC)
rxdrop		200		210		310
txpush		1.000		1.000		410
l2fwd 		0.900		1.000		160

[0]: https://lore.kernel.org/intel-wired-lan/20230704095915.9750-1-sriram.yagnaraman@est.tech/
[1]: https://www.qemu.org/docs/master/system/devices/igb.html
[2]: https://github.com/xdp-project/bpf-examples/tree/master/AF_XDP-example

Subsequent changes and information can be found here:
https://lore.kernel.org/intel-wired-lan/20241018-b4-igb_zero_copy-v9-0-da139d78d796@linutronix.de/

Yue Haibing converts use of ERR_PTR return to traditional error code
which resolves a smatch warning.

For igc:

Song Yoong Siang allows for the XDP program to be hot-swapped.

Yue Haibing converts use of ERR_PTR return to traditional error code
which resolves a smatch warning.

Joe Damato adds sets IRQ and queues to NAPI instances to allow for
reporting via netdev-genl API.

For ixgbe:

Yue Haibing converts use of ERR_PTR return to traditional error code
which resolves a smatch warning.

For ixgbevf:

Yue Haibing converts use of ERR_PTR return to traditional error code
which resolves a smatch warning.

For i40e:

Alex implements "mdd-auto-reset-vf" private flag to automatically reset
VFs when encountering an MDD event.

For fm10k:

Dr. David Alan Gilbert removes an unused function.

The following are changes since commit 3e5908172c05ab1511f2a6719b806d6eda6e1715:
  Merge tag 'ieee802154-for-net-next-2025-01-03' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan-next
and are available in the git repository at:
  git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue 1GbE

Aleksandr Loktionov (1):
  i40e: add ability to reset VF for Tx and Rx MDD events

Dr. David Alan Gilbert (1):
  intel/fm10k: Remove unused fm10k_iov_msg_mac_vlan_pf

Joe Damato (2):
  igc: Link IRQs to NAPI instances
  igc: Link queues to NAPI instances

Kurt Kanzenbach (1):
  igb: Add XDP finalize and stats update functions

Song Yoong Siang (1):
  igc: Allow hot-swapping XDP program

Sriram Yagnaraman (5):
  igb: Remove static qualifiers
  igb: Introduce igb_xdp_is_enabled()
  igb: Introduce XSK data structures and helpers
  igb: Add AF_XDP zero-copy Rx support
  igb: Add AF_XDP zero-copy Tx support

Yue Haibing (4):
  igc: Fix passing 0 to ERR_PTR in igc_xdp_run_prog()
  igb: Fix passing 0 to ERR_PTR in igb_run_xdp()
  ixgbe: Fix passing 0 to ERR_PTR in ixgbe_run_xdp()
  ixgbevf: Fix passing 0 to ERR_PTR in ixgbevf_run_xdp()

 .../device_drivers/ethernet/intel/i40e.rst    |  12 +
 drivers/net/ethernet/intel/fm10k/fm10k_pf.c   | 120 ----
 drivers/net/ethernet/intel/fm10k/fm10k_pf.h   |   2 -
 drivers/net/ethernet/intel/i40e/i40e.h        |   4 +-
 .../net/ethernet/intel/i40e/i40e_debugfs.c    |   2 +-
 .../net/ethernet/intel/i40e/i40e_ethtool.c    |   2 +
 drivers/net/ethernet/intel/i40e/i40e_main.c   | 107 +++-
 .../ethernet/intel/i40e/i40e_virtchnl_pf.c    |   2 +-
 .../ethernet/intel/i40e/i40e_virtchnl_pf.h    |  11 +-
 drivers/net/ethernet/intel/igb/Makefile       |   2 +-
 drivers/net/ethernet/intel/igb/igb.h          |  58 +-
 drivers/net/ethernet/intel/igb/igb_main.c     | 270 ++++++---
 drivers/net/ethernet/intel/igb/igb_xsk.c      | 562 ++++++++++++++++++
 drivers/net/ethernet/intel/igc/igc.h          |   2 +
 drivers/net/ethernet/intel/igc/igc_main.c     |  79 ++-
 drivers/net/ethernet/intel/igc/igc_xdp.c      |   8 +-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  23 +-
 .../net/ethernet/intel/ixgbevf/ixgbevf_main.c |  23 +-
 18 files changed, 1002 insertions(+), 287 deletions(-)
 create mode 100644 drivers/net/ethernet/intel/igb/igb_xsk.c

-- 
2.47.1