net: ethernet: ti: am65-cpsw: add multi port support in mac-only mode

Browse source

This patch adds final multi-port support to TI AM65x CPSW driver path in
preparation for adding support for multi-port devices, like Main CPSW0 on
K3 J721E SoC or future CPSW3g on K3 AM64x SoC.
- the separate netdev is created for every enabled external Port;
- DMA channels are common/shared for all external Ports and the RX/TX NAPI
and DMA processing assigned to first available netdev;
- external Ports are configured in mac-only mode, which is similar to TI
"dual-mac" mode for legacy TI CPSW - packets are sent to the Host port only
in ingress and directly to the Port on egress. No packet switching between
external ports happens.
- every port supports the same features as current AM65x CPSW on external
device.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Grygorii Strashko 2020-10-30 22:07:06 +02:00 • committed by Jakub Kicinski

parent a9e60cf0b4

commit 84b4aa4932

2 changed files with 82 additions and 48 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

129

drivers/net/ethernet/ti/am65-cpsw-nuss.c

View file

1

drivers/net/ethernet/ti/am65-cpsw-nuss.h

View file