netdev - [PATCH net-next v2 0/9] net: ethernet: ti: am65-cpsw: add multi port support in mac-only mode

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Date:   Fri, 16 Oct 2020 02:19:04 +0300
From:   Grygorii Strashko <grygorii.strashko@...com>
To:     "David S. Miller" <davem@...emloft.net>, <netdev@...r.kernel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Vignesh Raghavendra <vigneshr@...com>
CC:     Sekhar Nori <nsekhar@...com>, <linux-kernel@...r.kernel.org>,
        <linux-omap@...r.kernel.org>,
        Murali Karicheri <m-karicheri2@...com>,
        Grygorii Strashko <grygorii.strashko@...com>
Subject: [PATCH net-next v2 0/9] net: ethernet: ti: am65-cpsw: add multi port support in mac-only mode

Hi

This series adds multi-port support in mac-only mode (multi MAC mode) to TI
AM65x CPSW driver in preparation for enabling support for multi-port devices,
like Main CPSW0 on K3 J721E SoC or future CPSW3g on K3 AM64x SoC.

The multi MAC mode is implemented by configuring every enabled port in "mac-only"
mode (all ingress packets are sent only to the Host port and egress packets
directed to target Ext. Port) and creating separate net_device for
every enabled Ext. port.

This series does not affect on existing CPSW2g one Ext. Port devices and xmit
path changes are done only for multi-port devices by splitting xmit path for
one-port and multi-port devices. 

Patches 1-3: Preparation patches to improve K3 CPSW configuration depending on DT
Patches 4-5: Fix VLAN offload for multi MAC mode
Patch 6: Fixes CPTS context lose issue during PM runtime transition
Patch 7: Fixes TX csum offload for multi MAC mode
Patches 8-9: add multi-port support to TI AM65x CPSW

changes in v2:
- patch 8: xmit path split for one-port and multi-port devices to avoid
  performance losses 
- patch 9: fixed the case when Port 1 is disabled
- Patch 7: added fix for TX csum offload 

v1: https://lore.kernel.org/patchwork/cover/1315766/

Grygorii Strashko (9):
  net: ethernet: ti: am65-cpsw: move ale selection in pdata
  net: ethernet: ti: am65-cpsw: move free desc queue mode selection in
    pdata
  net: ethernet: ti: am65-cpsw: use cppi5_desc_is_tdcm()
  net: ethernet: ti: cpsw_ale: add cpsw_ale_vlan_del_modify()
  net: ethernet: ti: am65-cpsw: fix vlan offload for multi mac mode
  net: ethernet: ti: am65-cpsw: keep active if cpts enabled
  net: ethernet: ti: am65-cpsw: fix tx csum offload for multi mac mode
  net: ethernet: ti: am65-cpsw: prepare xmit/rx path for multi-port
    devices in mac-only mode
  net: ethernet: ti: am65-cpsw: add multi port support in mac-only mode

 drivers/net/ethernet/ti/am65-cpsw-nuss.c | 327 +++++++++++++++--------
 drivers/net/ethernet/ti/am65-cpsw-nuss.h |   5 +
 drivers/net/ethernet/ti/cpsw_ale.c       |  41 ++-
 drivers/net/ethernet/ti/cpsw_ale.h       |   1 +
 drivers/net/ethernet/ti/cpsw_switchdev.c |   2 +-
 5 files changed, 251 insertions(+), 125 deletions(-)

-- 
2.17.1