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Subject[PATCH net-next v2 00/12] net: intel: start The Great Code Dedup + Page Pool for iavf
Date
Here's a two-shot: introduce Intel Ethernet common library (libie) and
switch iavf to Page Pool. Details in the commit messages; here's
summary:

Not a secret there's a ton of code duplication between two and more Intel
ethernet modules. Before introducing new changes, which would need to be
copied over again, start decoupling the already existing duplicate
functionality into a new module, which will be shared between several
Intel Ethernet drivers.
The first thing that came to my mind was "libie" -- "Intel Ethernet
common library". Also this sounds like "lovelie" and can be expanded as
"lib Internet Explorer" :P I'm open for anything else (but justified).
The series is only the beginning. From now on, adding every new feature
or doing any good driver refactoring will remove much more lines than add
for quite some time. There's a basic roadmap with some deduplications
planned already, not speaking of that touching every line now asks: "can
I share this?".
PP conversion for iavf lands within the same series as these two are tied
closely. libie will support Page Pool model only, so a driver can't use
much of the lib until it's converted. iavf is only the example, the rest
will eventually be converted soon on a per-driver basis. That is when it
gets really interesting. Stay tech.

Alexander Lobakin (12):
net: intel: introduce Intel Ethernet common library
iavf: kill "legacy-rx" for good
iavf: optimize Rx buffer allocation a bunch
iavf: remove page splitting/recycling
iavf: always use a full order-0 page
net: skbuff: don't include <net/page_pool.h> into <linux/skbuff.h>
net: page_pool: avoid calling no-op externals when possible
net: page_pool: add DMA-sync-for-CPU inline helpers
iavf: switch to Page Pool
libie: add common queue stats
libie: add per-queue Page Pool stats
iavf: switch queue stats to libie

MAINTAINERS | 3 +-
drivers/net/ethernet/engleder/tsnep_main.c | 1 +
drivers/net/ethernet/freescale/fec_main.c | 1 +
drivers/net/ethernet/intel/Kconfig | 12 +-
drivers/net/ethernet/intel/Makefile | 1 +
drivers/net/ethernet/intel/i40e/i40e_common.c | 253 -------
drivers/net/ethernet/intel/i40e/i40e_main.c | 1 +
.../net/ethernet/intel/i40e/i40e_prototype.h | 7 -
drivers/net/ethernet/intel/i40e/i40e_txrx.c | 74 +-
drivers/net/ethernet/intel/i40e/i40e_type.h | 88 ---
drivers/net/ethernet/intel/iavf/iavf.h | 2 +-
drivers/net/ethernet/intel/iavf/iavf_common.c | 253 -------
.../net/ethernet/intel/iavf/iavf_ethtool.c | 227 +-----
drivers/net/ethernet/intel/iavf/iavf_main.c | 45 +-
.../net/ethernet/intel/iavf/iavf_prototype.h | 7 -
drivers/net/ethernet/intel/iavf/iavf_txrx.c | 715 +++++-------------
drivers/net/ethernet/intel/iavf/iavf_txrx.h | 185 +----
drivers/net/ethernet/intel/iavf/iavf_type.h | 90 ---
.../net/ethernet/intel/iavf/iavf_virtchnl.c | 16 +-
.../net/ethernet/intel/ice/ice_lan_tx_rx.h | 316 --------
drivers/net/ethernet/intel/ice/ice_main.c | 1 +
drivers/net/ethernet/intel/ice/ice_txrx_lib.c | 74 +-
drivers/net/ethernet/intel/libie/Makefile | 7 +
drivers/net/ethernet/intel/libie/internal.h | 23 +
drivers/net/ethernet/intel/libie/rx.c | 158 ++++
drivers/net/ethernet/intel/libie/stats.c | 190 +++++
.../ethernet/mellanox/mlx5/core/en/params.c | 1 +
.../net/ethernet/mellanox/mlx5/core/en/xdp.c | 1 +
drivers/net/wireless/mediatek/mt76/mt76.h | 1 +
include/linux/net/intel/libie/rx.h | 170 +++++
include/linux/net/intel/libie/stats.h | 214 ++++++
include/linux/skbuff.h | 4 +-
include/net/page_pool.h | 69 +-
net/core/page_pool.c | 10 +
34 files changed, 1139 insertions(+), 2081 deletions(-)
create mode 100644 drivers/net/ethernet/intel/libie/Makefile
create mode 100644 drivers/net/ethernet/intel/libie/internal.h
create mode 100644 drivers/net/ethernet/intel/libie/rx.c
create mode 100644 drivers/net/ethernet/intel/libie/stats.c
create mode 100644 include/linux/net/intel/libie/rx.h
create mode 100644 include/linux/net/intel/libie/stats.h

---
Directly to net-next, has non-Intel code changes (0006-0008).

From v1[0]:
* 0006: new (me, Jakub);
* 0008: give the helpers more intuitive names (Jakub, Ilias);
* -^-: also expand their kdoc a bit for the same reason;
* -^-: fix kdoc copy-paste issue (Patchwork, Jakub);
* 0011: drop `inline` from C file (Patchwork, Jakub).

[0] https://lore.kernel.org/netdev/20230516161841.37138-1-aleksander.lobakin@intel.com

--
2.40.1

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