linux-kernel - [PATCH net-next 0/5] net: lan966x: Add support for FDMA

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Date:   Thu, 17 Mar 2022 19:51:54 +0100
From:   Horatiu Vultur <horatiu.vultur@...rochip.com>
To:     <netdev@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <davem@...emloft.net>, <kuba@...nel.org>, <robh+dt@...nel.org>,
        <UNGLinuxDriver@...rochip.com>,
        Horatiu Vultur <horatiu.vultur@...rochip.com>
Subject: [PATCH net-next 0/5] net: lan966x: Add support for FDMA

Currently when injecting or extracting a frame from CPU, the frame
is given to the HW each word at a time. There is another way to
inject/extract frames from CPU using FDMA(Frame Direct Memory Access).
In this way the entire frame is given to the HW. This improves both
RX and TX bitrate.

Horatiu Vultur (5):
  dt-bindings: net: lan966x: Extend with FDMA interrupt
  net: lan966x: Add registers that are used for FDMA.
  net: lan966x: Expose functions that are needed by FDMA
  net: lan966x: Add FDMA functionality
  net: lan96x: Update FDMA to change MTU.

 .../net/microchip,lan966x-switch.yaml         |   2 +
 .../net/ethernet/microchip/lan966x/Makefile   |   2 +-
 .../ethernet/microchip/lan966x/lan966x_fdma.c | 772 ++++++++++++++++++
 .../ethernet/microchip/lan966x/lan966x_main.c |  44 +-
 .../ethernet/microchip/lan966x/lan966x_main.h | 120 +++
 .../ethernet/microchip/lan966x/lan966x_port.c |   3 +
 .../ethernet/microchip/lan966x/lan966x_regs.h | 106 +++
 7 files changed, 1037 insertions(+), 12 deletions(-)
 create mode 100644 drivers/net/ethernet/microchip/lan966x/lan966x_fdma.c

-- 
2.33.0