qualcommbe: v6.12: add pending PPE driver (part 1)

Add v3 submission of the qualcomm PPE driver. As of this writing, it
is the latest version. This lacks the EDMA driver and network device
support. That will be added in part 2.

Link: https://lore.kernel.org/lkml/[email protected]
Signed-off-by: Alexandru Gagniuc <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/18796
Signed-off-by: Robert Marko <[email protected]>

target/linux/qualcommbe/patches-6.12/0323-dt-bindings-net-Add-PPE-for-Qualcomm-IPQ9574-SoC.patch

@@ -0,0 +1,432 @@
+From 48dc6d2fe28865a5c3d271aeb966b984a8085e7c Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:35 +0800
+Subject: [PATCH] dt-bindings: net: Add PPE for Qualcomm IPQ9574 SoC
+
+The PPE (packet process engine) hardware block is available in Qualcomm
+IPQ chipsets that support PPE architecture, such as IPQ9574. The PPE in
+the IPQ9574 SoC includes six ethernet ports (6 GMAC and 6 XGMAC), which
+are used to connect with external PHY devices by PCS. It includes an L2
+switch function for bridging packets among the 6 ethernet ports and the
+CPU port. The CPU port enables packet transfer between the ethernet
+ports and the ARM cores in the SoC, using the ethernet DMA.
+
+The PPE also includes packet processing offload capabilities for various
+networking functions such as route and bridge flows, VLANs, different
+tunnel protocols and VPN.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../bindings/net/qcom,ipq9574-ppe.yaml        | 406 ++++++++++++++++++
+ 1 file changed, 406 insertions(+)
+ create mode 100644 Documentation/devicetree/bindings/net/qcom,ipq9574-ppe.yaml
+
+--- /dev/null
++++ b/Documentation/devicetree/bindings/net/qcom,ipq9574-ppe.yaml
+@@ -0,0 +1,406 @@
++# SPDX-License-Identifier: GPL-2.0 OR BSD-2-Clause
++%YAML 1.2
++---
++$id: http://devicetree.org/schemas/net/qcom,ipq9574-ppe.yaml#
++$schema: http://devicetree.org/meta-schemas/core.yaml#
++
++title: Qualcomm IPQ packet process engine (PPE)
++
++maintainers:
++  - Luo Jie <[email protected]>
++  - Lei Wei <[email protected]>
++  - Suruchi Agarwal <[email protected]>
++  - Pavithra R <[email protected]>>
++
++description:
++  The Ethernet functionality in the PPE (Packet Process Engine) is comprised
++  of three components, the switch core, port wrapper and Ethernet DMA.
++
++  The Switch core in the IPQ9574 PPE has maximum of 6 front panel ports and
++  two FIFO interfaces. One of the two FIFO interfaces is used for Ethernet
++  port to host CPU communication using Ethernet DMA. The other is used
++  communicating to the EIP engine which is used for IPsec offload. On the
++  IPQ9574, the PPE includes 6 GMAC/XGMACs that can be connected with external
++  Ethernet PHY. Switch core also includes BM (Buffer Management), QM (Queue
++  Management) and SCH (Scheduler) modules for supporting the packet processing.
++
++  The port wrapper provides connections from the 6 GMAC/XGMACS to UNIPHY (PCS)
++  supporting various modes such as SGMII/QSGMII/PSGMII/USXGMII/10G-BASER. There
++  are 3 UNIPHY (PCS) instances supported on the IPQ9574.
++
++  Ethernet DMA is used to transmit and receive packets between the six Ethernet
++  ports and ARM host CPU.
++
++  The follow diagram shows the PPE hardware block along with its connectivity
++  to the external hardware blocks such clock hardware blocks (CMNPLL, GCC,
++  NSS clock controller) and ethernet PCS/PHY blocks. For depicting the PHY
++  connectivity, one 4x1 Gbps PHY (QCA8075) and two 10 GBps PHYs are used as an
++  example.
++  - |
++         +---------+
++         |  48 MHZ |
++         +----+----+
++              |(clock)
++              v
++         +----+----+
++  +------| CMN PLL |
++  |      +----+----+
++  |           |(clock)
++  |           v
++  |      +----+----+           +----+----+  (clock) +----+----+
++  |  +---|  NSSCC  |           |   GCC   |--------->|   MDIO  |
++  |  |   +----+----+           +----+----+          +----+----+
++  |  |        |(clock & reset)      |(clock)
++  |  |        v                     v
++  |  |   +-----------------------------+----------+----------+---------+
++  |  |   |       +-----+               |EDMA FIFO |          | EIP FIFO|
++  |  |   |       | SCH |               +----------+          +---------+
++  |  |   |       +-----+                        |              |       |
++  |  |   |  +------+   +------+               +-------------------+    |
++  |  |   |  |  BM  |   |  QM  |  IPQ9574-PPE  |    L2/L3 Process  |    |
++  |  |   |  +------+   +------+               +-------------------+    |
++  |  |   |                                             |               |
++  |  |   | +-------+ +-------+ +-------+ +-------+ +-------+ +-------+ |
++  |  |   | |  MAC0 | |  MAC1 | |  MAC2 | |  MAC3 | | XGMAC4| |XGMAC5 | |
++  |  |   | +---+---+ +---+---+ +---+---+ +---+---+ +---+---+ +---+---+ |
++  |  |   |     |         |         |         |         |         |     |
++  |  |   +-----+---------+---------+---------+---------+---------+-----+
++  |  |         |         |         |         |         |         |
++  |  |     +---+---------+---------+---------+---+ +---+---+ +---+---+
++  +--+---->|                PCS0                 | |  PCS1 | | PCS2  |
++  |(clock) +---+---------+---------+---------+---+ +---+---+ +---+---+
++  |            |         |         |         |         |         |
++  |        +---+---------+---------+---------+---+ +---+---+ +---+---+
++  +------->|             QCA8075 PHY             | | PHY4  | | PHY5  |
++   (clock) +-------------------------------------+ +-------+ +-------+
++
++properties:
++  compatible:
++    enum:
++      - qcom,ipq9574-ppe
++
++  reg:
++    maxItems: 1
++
++  clocks:
++    items:
++      - description: PPE core clock from NSS clock controller
++      - description: PPE APB (Advanced Peripheral Bus) clock from NSS clock controller
++      - description: PPE ingress process engine clock from NSS clock controller
++      - description: PPE BM, QM and scheduler clock from NSS clock controller
++
++  clock-names:
++    items:
++      - const: ppe
++      - const: apb
++      - const: ipe
++      - const: btq
++
++  resets:
++    maxItems: 1
++    description: PPE reset, which is necessary before configuring PPE hardware
++
++  interconnects:
++    items:
++      - description: Clock path leading to PPE switch core function
++      - description: Clock path leading to PPE register access
++      - description: Clock path leading to QoS generation
++      - description: Clock path leading to timeout reference
++      - description: Clock path leading to NSS NOC from memory NOC
++      - description: Clock path leading to memory NOC from NSS NOC
++      - description: Clock path leading to enhanced memory NOC from NSS NOC
++
++  interconnect-names:
++    items:
++      - const: ppe
++      - const: ppe_cfg
++      - const: qos_gen
++      - const: timeout_ref
++      - const: nssnoc_memnoc
++      - const: memnoc_nssnoc
++      - const: memnoc_nssnoc_1
++
++  ethernet-dma:
++    type: object
++    additionalProperties: false
++    description:
++      EDMA (Ethernet DMA) is used to transmit packets between PPE and ARM
++      host CPU. There are 32 TX descriptor rings, 32 TX completion rings,
++      24 RX descriptor rings and 8 RX fill rings supported.
++
++    properties:
++      clocks:
++        items:
++          - description: EDMA system clock from NSS Clock Controller
++          - description: EDMA APB (Advanced Peripheral Bus) clock from
++              NSS Clock Controller
++
++      clock-names:
++        items:
++          - const: sys
++          - const: apb
++
++      resets:
++        maxItems: 1
++        description: EDMA reset from NSS clock controller
++
++      interrupts:
++        minItems: 29
++        maxItems: 57
++
++      interrupt-names:
++        minItems: 29
++        maxItems: 57
++        items:
++          pattern: '^(txcmpl_([0-9]|[1-2][0-9]|3[0-1])|rxdesc_([0-9]|1[0-9]|2[0-3])|misc)$'
++        description:
++          Interrupts "txcmpl_[0-31]" are the Ethernet DMA Tx completion ring interrupts.
++          Interrupts "rxdesc_[0-23]" are the Ethernet DMA Rx Descriptor ring interrupts.
++          Interrupt "misc" is the Ethernet DMA miscellaneous error interrupt.
++
++    required:
++      - clocks
++      - clock-names
++      - resets
++      - interrupts
++      - interrupt-names
++
++required:
++  - compatible
++  - reg
++  - clocks
++  - clock-names
++  - resets
++  - interconnects
++  - interconnect-names
++  - ethernet-dma
++
++allOf:
++  - $ref: ethernet-switch.yaml
++
++unevaluatedProperties: false
++
++examples:
++  - |
++    #include <dt-bindings/clock/qcom,ipq9574-gcc.h>
++    #include <dt-bindings/interconnect/qcom,ipq9574.h>
++    #include <dt-bindings/interrupt-controller/arm-gic.h>
++
++    ethernet-switch@3a000000 {
++        compatible = "qcom,ipq9574-ppe";
++        reg = <0x3a000000 0xbef800>;
++        clocks = <&nsscc 80>,
++                 <&nsscc 79>,
++                 <&nsscc 81>,
++                 <&nsscc 78>;
++        clock-names = "ppe",
++                      "apb",
++                      "ipe",
++                      "btq";
++        resets = <&nsscc 108>;
++        interconnects = <&nsscc MASTER_NSSNOC_PPE &nsscc SLAVE_NSSNOC_PPE>,
++                        <&nsscc MASTER_NSSNOC_PPE_CFG &nsscc SLAVE_NSSNOC_PPE_CFG>,
++                        <&gcc MASTER_NSSNOC_QOSGEN_REF &gcc SLAVE_NSSNOC_QOSGEN_REF>,
++                        <&gcc MASTER_NSSNOC_TIMEOUT_REF &gcc SLAVE_NSSNOC_TIMEOUT_REF>,
++                        <&gcc MASTER_MEM_NOC_NSSNOC &gcc SLAVE_MEM_NOC_NSSNOC>,
++                        <&gcc MASTER_NSSNOC_MEMNOC &gcc SLAVE_NSSNOC_MEMNOC>,
++                        <&gcc MASTER_NSSNOC_MEM_NOC_1 &gcc SLAVE_NSSNOC_MEM_NOC_1>;
++        interconnect-names = "ppe",
++                             "ppe_cfg",
++                             "qos_gen",
++                             "timeout_ref",
++                             "nssnoc_memnoc",
++                             "memnoc_nssnoc",
++                             "memnoc_nssnoc_1";
++
++        ethernet-dma {
++            clocks = <&nsscc 77>,
++                     <&nsscc 76>;
++            clock-names = "sys",
++                          "apb";
++            resets = <&nsscc 0>;
++            interrupts = <GIC_SPI 371 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 372 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 373 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 374 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 375 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 376 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 377 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 378 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 379 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 380 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 381 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 382 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 383 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 384 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 509 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 508 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 507 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 506 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 505 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 504 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 503 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 502 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 501 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 500 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 351 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 352 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 353 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 354 IRQ_TYPE_LEVEL_HIGH>,
++                         <GIC_SPI 499 IRQ_TYPE_LEVEL_HIGH>;
++            interrupt-names = "txcmpl_8",
++                              "txcmpl_9",
++                              "txcmpl_10",
++                              "txcmpl_11",
++                              "txcmpl_12",
++                              "txcmpl_13",
++                              "txcmpl_14",
++                              "txcmpl_15",
++                              "txcmpl_16",
++                              "txcmpl_17",
++                              "txcmpl_18",
++                              "txcmpl_19",
++                              "txcmpl_20",
++                              "txcmpl_21",
++                              "txcmpl_22",
++                              "txcmpl_23",
++                              "txcmpl_24",
++                              "txcmpl_25",
++                              "txcmpl_26",
++                              "txcmpl_27",
++                              "txcmpl_28",
++                              "txcmpl_29",
++                              "txcmpl_30",
++                              "txcmpl_31",
++                              "rxdesc_20",
++                              "rxdesc_21",
++                              "rxdesc_22",
++                              "rxdesc_23",
++                              "misc";
++        };
++
++        ethernet-ports {
++            #address-cells = <1>;
++            #size-cells = <0>;
++
++            port@1 {
++                reg = <1>;
++                phy-mode = "qsgmii";
++                managed = "in-band-status";
++                phy-handle = <&phy0>;
++                pcs-handle = <&pcs0_mii0>;
++                clocks = <&nsscc 33>,
++                         <&nsscc 34>,
++                         <&nsscc 37>;
++                clock-names = "mac",
++                              "rx",
++                              "tx";
++                resets = <&nsscc 29>,
++                         <&nsscc 96>,
++                         <&nsscc 97>;
++                reset-names = "mac",
++                              "rx",
++                              "tx";
++            };
++
++            port@2 {
++                reg = <2>;
++                phy-mode = "qsgmii";
++                managed = "in-band-status";
++                phy-handle = <&phy1>;
++                pcs-handle = <&pcs0_mii1>;
++                clocks = <&nsscc 40>,
++                         <&nsscc 41>,
++                         <&nsscc 44>;
++                clock-names = "mac",
++                              "rx",
++                              "tx";
++                resets = <&nsscc 30>,
++                         <&nsscc 98>,
++                         <&nsscc 99>;
++                reset-names = "mac",
++                              "rx",
++                              "tx";
++            };
++
++            port@3 {
++                reg = <3>;
++                phy-mode = "qsgmii";
++                managed = "in-band-status";
++                phy-handle = <&phy2>;
++                pcs-handle = <&pcs0_mii2>;
++                clocks = <&nsscc 47>,
++                         <&nsscc 48>,
++                         <&nsscc 51>;
++                clock-names = "mac",
++                              "rx",
++                              "tx";
++                resets = <&nsscc 31>,
++                         <&nsscc 100>,
++                         <&nsscc 101>;
++                reset-names = "mac",
++                              "rx",
++                              "tx";
++            };
++
++            port@4 {
++                reg = <4>;
++                phy-mode = "qsgmii";
++                managed = "in-band-status";
++                phy-handle = <&phy3>;
++                pcs-handle = <&pcs0_mii3>;
++                clocks = <&nsscc 54>,
++                         <&nsscc 55>,
++                         <&nsscc 58>;
++                clock-names = "mac",
++                              "rx",
++                              "tx";
++                resets = <&nsscc 32>,
++                         <&nsscc 102>,
++                         <&nsscc 103>;
++                reset-names = "mac",
++                              "rx",
++                              "tx";
++            };
++
++            port@5 {
++                reg = <5>;
++                phy-mode = "usxgmii";
++                managed = "in-band-status";
++                phy-handle = <&phy4>;
++                pcs-handle = <&pcs1_mii0>;
++                clocks = <&nsscc 61>,
++                         <&nsscc 62>,
++                         <&nsscc 65>;
++                clock-names = "mac",
++                              "rx",
++                              "tx";
++                resets = <&nsscc 33>,
++                         <&nsscc 104>,
++                         <&nsscc 105>;
++                reset-names = "mac",
++                              "rx",
++                              "tx";
++            };
++
++            port@6 {
++                reg = <6>;
++                phy-mode = "usxgmii";
++                managed = "in-band-status";
++                phy-handle = <&phy5>;
++                pcs-handle = <&pcs2_mii0>;
++                clocks = <&nsscc 68>,
++                         <&nsscc 69>,
++                         <&nsscc 72>;
++                clock-names = "mac",
++                              "rx",
++                              "tx";
++                resets = <&nsscc 34>,
++                         <&nsscc 106>,
++                         <&nsscc 107>;
++                reset-names = "mac",
++                              "rx",
++                              "tx";
++            };
++        };
++    };

target/linux/qualcommbe/patches-6.12/0324-docs-networking-Add-PPE-driver-documentation-for-Qua.patch

@@ -0,0 +1,227 @@
+From 9973b6610830146af1a12fe02d2d6440eb80b0f9 Mon Sep 17 00:00:00 2001
+From: Lei Wei <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:36 +0800
+Subject: [PATCH] docs: networking: Add PPE driver documentation for Qualcomm
+ IPQ9574 SoC
+
+Add description and high-level diagram for PPE, driver overview and
+module enable/debug information.
+
+Signed-off-by: Lei Wei <[email protected]>
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../device_drivers/ethernet/index.rst         |   1 +
+ .../ethernet/qualcomm/ppe/ppe.rst             | 197 ++++++++++++++++++
+ 2 files changed, 198 insertions(+)
+ create mode 100644 Documentation/networking/device_drivers/ethernet/qualcomm/ppe/ppe.rst
+
+--- a/Documentation/networking/device_drivers/ethernet/index.rst
++++ b/Documentation/networking/device_drivers/ethernet/index.rst
+@@ -49,6 +49,7 @@ Contents:
+    neterion/s2io
+    netronome/nfp
+    pensando/ionic
++   qualcomm/ppe/ppe
+    smsc/smc9
+    stmicro/stmmac
+    ti/cpsw
+--- /dev/null
++++ b/Documentation/networking/device_drivers/ethernet/qualcomm/ppe/ppe.rst
+@@ -0,0 +1,197 @@
++.. SPDX-License-Identifier: GPL-2.0
++
++===============================================
++PPE Ethernet Driver for Qualcomm IPQ SoC Family
++===============================================
++
++Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++
++Author: Lei Wei <[email protected]>
++
++
++Contents
++========
++
++- `PPE Overview`_
++- `PPE Driver Overview`_
++- `PPE Driver Supported SoCs`_
++- `Enabling the Driver`_
++- `Debugging`_
++
++
++PPE Overview
++============
++
++IPQ (Qualcomm Internet Processor) SoC (System-on-Chip) series is Qualcomm's series of
++networking SoC for Wi-Fi access points. The PPE (Packet Process Engine) is the Ethernet
++packet process engine in the IPQ SoC.
++
++Below is a simplified hardware diagram of IPQ9574 SoC which includes the PPE engine and
++other blocks which are in the SoC but outside the PPE engine. These blocks work together
++to enable the Ethernet for the IPQ SoC::
++
++             +------+ +------+ +------+ +------+ +------+  +------+ start +-------+
++             |netdev| |netdev| |netdev| |netdev| |netdev|  |netdev|<------|PHYLINK|
++             +------+ +------+ +------+ +------+ +------+  +------+ stop  +-+-+-+-+
++                                           |                                | | ^
++ +-------+   +-------------------------+--------+----------------------+    | | |
++ | GCC   |   |                         |  EDMA  |                      |    | | |
++ +---+---+   |  PPE                    +---+----+                      |    | | |
++     | clk   |                             |                           |    | | |
++     +------>| +-----------------------+------+-----+---------------+  |    | | |
++             | |   Switch Core         |Port0 |     |Port7(EIP FIFO)|  |    | | |
++             | |                       +---+--+     +------+--------+  |    | | |
++             | |                           |               |        |  |    | | |
++ +-------+   | |                    +------+---------------+----+   |  |    | | |
++ |CMN PLL|   | | +---+ +---+ +----+ | +--------+                |   |  |    | | |
++ +---+---+   | | |BM | |QM | |SCH | | | L2/L3  |  .......       |   |  |    | | |
++ |   |       | | +---+ +---+ +----+ | +--------+                |   |  |    | | |
++ |   |       | |                    +------+--------------------+   |  |    | | |
++ |   |       | |                           |                        |  |    | | |
++ |   v       | | +-----+-+-----+-+-----+-+-+---+--+-----+-+-----+   |  |    | | |
++ | +------+  | | |Port1| |Port2| |Port3| |Port4|  |Port5| |Port6|   |  |    | | |
++ | |NSSCC |  | | +-----+ +-----+ +-----+ +-----+  +-----+ +-----+   |  | mac| | |
++ | +-+-+--+  | | |MAC0 | |MAC1 | |MAC2 | |MAC3 |  |MAC4 | |MAC5 |   |  |<---+ | |
++ | ^ | |clk  | | +-----+-+-----+-+-----+-+-----+--+-----+-+-----+   |  | ops  | |
++ | | | +---->| +----|------|-------|-------|---------|--------|-----+  |      | |
++ | | |       +---------------------------------------------------------+      | |
++ | | |              |      |       |       |         |        |               | |
++ | | |   MII clk    |      QSGMII               USXGMII   USXGMII             | |
++ | | +------------->|      |       |       |         |        |               | |
++ | |              +-------------------------+ +---------+ +---------+         | |
++ | |125/312.5M clk|       (PCS0)            | | (PCS1)  | | (PCS2)  | pcs ops | |
++ | +--------------+       UNIPHY0           | | UNIPHY1 | | UNIPHY2 |<--------+ |
++ +--------------->|                         | |         | |         |           |
++ | 31.25M ref clk +-------------------------+ +---------+ +---------+           |
++ |                   |     |      |      |          |          |                |
++ |              +-----------------------------------------------------+         |
++ |25/50M ref clk| +-------------------------+    +------+   +------+  | link    |
++ +------------->| |      QUAD PHY           |    | PHY4 |   | PHY5 |  |---------+
++                | +-------------------------+    +------+   +------+  | change
++                |                                                     |
++                |                       MDIO bus                      |
++                +-----------------------------------------------------+
++
++The CMN (Common) PLL, NSSCC (Networking Sub System Clock Controller) and GCC (Global
++Clock Controller) blocks are in the SoC and act as clock providers.
++
++The UNIPHY block is in the SoC and provides the PCS (Physical Coding Sublayer) and
++XPCS (10-Gigabit Physical Coding Sublayer) functions to support different interface
++modes between the PPE MAC and the external PHY.
++
++This documentation focuses on the descriptions of PPE engine and the PPE driver.
++
++The Ethernet functionality in the PPE (Packet Process Engine) is comprised of three
++components: the switch core, port wrapper and Ethernet DMA.
++
++The Switch core in the IPQ9574 PPE has maximum of 6 front panel ports and two FIFO
++interfaces. One of the two FIFO interfaces is used for Ethernet port to host CPU
++communication using Ethernet DMA. The other is used communicating to the EIP engine
++which is used for IPsec offload. On the IPQ9574, the PPE includes 6 GMAC/XGMACs that
++can be connected with external Ethernet PHY. Switch core also includes BM (Buffer
++Management), QM (Queue Management) and SCH (Scheduler) modules for supporting the
++packet processing.
++
++The port wrapper provides connections from the 6 GMAC/XGMACS to UNIPHY (PCS) supporting
++various modes such as SGMII/QSGMII/PSGMII/USXGMII/10G-BASER. There are 3 UNIPHY (PCS)
++instances supported on the IPQ9574.
++
++Ethernet DMA is used to transmit and receive packets between the Ethernet subsystem
++and ARM host CPU.
++
++The following lists the main blocks in the PPE engine which will be driven by this
++PPE driver:
++
++- BM
++    BM is the hardware buffer manager for the PPE switch ports.
++- QM
++    Queue Manager for managing the egress hardware queues of the PPE switch ports.
++- SCH
++    The scheduler which manages the hardware traffic scheduling for the PPE switch ports.
++- L2
++    The L2 block performs the packet bridging in the switch core. The bridge domain is
++    represented by the VSI (Virtual Switch Instance) domain in PPE. FDB learning can be
++    enabled based on the VSI domain and bridge forwarding occurs within the VSI domain.
++- MAC
++    The PPE in the IPQ9574 supports up to six MACs (MAC0 to MAC5) which are corresponding
++    to six switch ports (port1 to port6). The MAC block is connected with external PHY
++    through the UNIPHY PCS block. Each MAC block includes the GMAC and XGMAC blocks and
++    the switch port can select to use GMAC or XMAC through a MUX selection according to
++    the external PHY's capability.
++- EDMA (Ethernet DMA)
++    The Ethernet DMA is used to transmit and receive Ethernet packets between the PPE
++    ports and the ARM cores.
++
++The received packet on a PPE MAC port can be forwarded to another PPE MAC port. It can
++be also forwarded to internal switch port0 so that the packet can be delivered to the
++ARM cores using the Ethernet DMA (EDMA) engine. The Ethernet DMA driver will deliver the
++packet to the corresponding 'netdevice' interface.
++
++The software instantiations of the PPE MAC (netdevice), PCS and external PHYs interact
++with the Linux PHYLINK framework to manage the connectivity between the PPE ports and
++the connected PHYs, and the port link states. This is also illustrated in above diagram.
++
++
++PPE Driver Overview
++===================
++PPE driver is Ethernet driver for the Qualcomm IPQ SoC. It is a single platform driver
++which includes the PPE part and Ethernet DMA part. The PPE part initializes and drives the
++various blocks in PPE switch core such as BM/QM/L2 blocks and the PPE MACs. The EDMA part
++drives the Ethernet DMA for packet transfer between PPE ports and ARM cores, and enables
++the netdevice driver for the PPE ports.
++
++The PPE driver files in drivers/net/ethernet/qualcomm/ppe/ are listed as below:
++
++- Makefile
++- ppe.c
++- ppe.h
++- ppe_config.c
++- ppe_config.h
++- ppe_debugfs.c
++- ppe_debugfs.h
++- ppe_regs.h
++
++The ppe.c file contains the main PPE platform driver and undertakes the initialization of
++PPE switch core blocks such as QM, BM and L2. The configuration APIs for these hardware
++blocks are provided in the ppe_config.c file.
++
++The ppe.h defines the PPE device data structure which will be used by PPE driver functions.
++
++The ppe_debugfs.c enables the PPE statistics counters such as PPE port Rx and Tx counters,
++CPU code counters and queue counters.
++
++
++PPE Driver Supported SoCs
++=========================
++
++The PPE driver supports the following IPQ SoC:
++
++- IPQ9574
++
++
++Enabling the Driver
++===================
++
++The driver is located in the menu structure at:
++
++  -> Device Drivers
++    -> Network device support (NETDEVICES [=y])
++      -> Ethernet driver support
++        -> Qualcomm devices
++          -> Qualcomm Technologies, Inc. PPE Ethernet support
++
++If this driver is built as a module, we can use below commands to install and remove it:
++
++- insmod qcom-ppe.ko
++- rmmod qcom-ppe.ko
++
++The PPE driver functionally depends on the CMN PLL and NSSCC clock controller drivers.
++Please make sure the dependent modules are installed before installing the PPE driver
++module.
++
++
++Debugging
++=========
++
++The PPE hardware counters are available in the debugfs and can be checked by the command
++``cat /sys/kernel/debug/ppe/packet_counters``.

target/linux/qualcommbe/patches-6.12/0325-net-ethernet-qualcomm-Add-PPE-driver-for-IPQ9574-SoC.patch

@@ -0,0 +1,339 @@
+From d1158f0282304c89217894aa346fc45364b95542 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:37 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Add PPE driver for IPQ9574 SoC
+
+The PPE (Packet Process Engine) hardware block is available
+on Qualcomm IPQ SoC that support PPE architecture, such as
+IPQ9574.
+
+The PPE in IPQ9574 includes six integrated ethernet MAC
+(for 6 PPE ports), buffer management, queue management and
+scheduler functions. The MACs can connect with the external
+PHY or switch devices using the UNIPHY PCS block available
+in the SoC.
+
+The PPE also includes various packet processing offload
+capabilities such as L3 routing and L2 bridging, VLAN and
+tunnel processing offload. It also includes Ethernet DMA
+function for transferring packets between ARM cores and
+PPE ethernet ports.
+
+This patch adds the base source files and Makefiles for
+the PPE driver such as platform driver registration,
+clock initialization, and PPE reset routines.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ drivers/net/ethernet/qualcomm/Kconfig      |  15 ++
+ drivers/net/ethernet/qualcomm/Makefile     |   1 +
+ drivers/net/ethernet/qualcomm/ppe/Makefile |   7 +
+ drivers/net/ethernet/qualcomm/ppe/ppe.c    | 218 +++++++++++++++++++++
+ drivers/net/ethernet/qualcomm/ppe/ppe.h    |  36 ++++
+ 5 files changed, 277 insertions(+)
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/Makefile
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe.c
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe.h
+
+--- a/drivers/net/ethernet/qualcomm/Kconfig
++++ b/drivers/net/ethernet/qualcomm/Kconfig
+@@ -61,6 +61,21 @@ config QCOM_EMAC
+ 	  low power, Receive-Side Scaling (RSS), and IEEE 1588-2008
+ 	  Precision Clock Synchronization Protocol.
+ 
++config QCOM_PPE
++	tristate "Qualcomm Technologies, Inc. PPE Ethernet support"
++	depends on HAS_IOMEM && OF
++	depends on COMMON_CLK
++	select REGMAP_MMIO
++	help
++	  This driver supports the Qualcomm Technologies, Inc. packet
++	  process engine (PPE) available with IPQ SoC. The PPE includes
++	  the ethernet MACs, Ethernet DMA (EDMA) and switch core that
++	  supports L3 flow offload, L2 switch function, RSS and tunnel
++	  offload.
++
++	  To compile this driver as a module, choose M here. The module
++	  will be called qcom-ppe.
++
+ source "drivers/net/ethernet/qualcomm/rmnet/Kconfig"
+ 
+ endif # NET_VENDOR_QUALCOMM
+--- a/drivers/net/ethernet/qualcomm/Makefile
++++ b/drivers/net/ethernet/qualcomm/Makefile
+@@ -11,4 +11,5 @@ qcauart-objs := qca_uart.o
+ 
+ obj-y += emac/
+ 
++obj-$(CONFIG_QCOM_PPE) += ppe/
+ obj-$(CONFIG_RMNET) += rmnet/
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/Makefile
+@@ -0,0 +1,7 @@
++# SPDX-License-Identifier: GPL-2.0-only
++#
++# Makefile for the device driver of PPE (Packet Process Engine) in IPQ SoC
++#
++
++obj-$(CONFIG_QCOM_PPE) += qcom-ppe.o
++qcom-ppe-objs := ppe.o
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe.c
+@@ -0,0 +1,218 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++/* PPE platform device probe, DTSI parser and PPE clock initializations. */
++
++#include <linux/clk.h>
++#include <linux/interconnect.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/of.h>
++#include <linux/platform_device.h>
++#include <linux/regmap.h>
++#include <linux/reset.h>
++
++#include "ppe.h"
++
++#define PPE_PORT_MAX		8
++#define PPE_CLK_RATE		353000000
++
++/* ICC clocks for enabling PPE device. The avg_bw and peak_bw with value 0
++ * will be updated by the clock rate of PPE.
++ */
++static const struct icc_bulk_data ppe_icc_data[] = {
++	{
++		.name = "ppe",
++		.avg_bw = 0,
++		.peak_bw = 0,
++	},
++	{
++		.name = "ppe_cfg",
++		.avg_bw = 0,
++		.peak_bw = 0,
++	},
++	{
++		.name = "qos_gen",
++		.avg_bw = 6000,
++		.peak_bw = 6000,
++	},
++	{
++		.name = "timeout_ref",
++		.avg_bw = 6000,
++		.peak_bw = 6000,
++	},
++	{
++		.name = "nssnoc_memnoc",
++		.avg_bw = 533333,
++		.peak_bw = 533333,
++	},
++	{
++		.name = "memnoc_nssnoc",
++		.avg_bw = 533333,
++		.peak_bw = 533333,
++	},
++	{
++		.name = "memnoc_nssnoc_1",
++		.avg_bw = 533333,
++		.peak_bw = 533333,
++	},
++};
++
++static const struct regmap_range ppe_readable_ranges[] = {
++	regmap_reg_range(0x0, 0x1ff),		/* Global */
++	regmap_reg_range(0x400, 0x5ff),		/* LPI CSR */
++	regmap_reg_range(0x1000, 0x11ff),	/* GMAC0 */
++	regmap_reg_range(0x1200, 0x13ff),	/* GMAC1 */
++	regmap_reg_range(0x1400, 0x15ff),	/* GMAC2 */
++	regmap_reg_range(0x1600, 0x17ff),	/* GMAC3 */
++	regmap_reg_range(0x1800, 0x19ff),	/* GMAC4 */
++	regmap_reg_range(0x1a00, 0x1bff),	/* GMAC5 */
++	regmap_reg_range(0xb000, 0xefff),	/* PRX CSR */
++	regmap_reg_range(0xf000, 0x1efff),	/* IPE */
++	regmap_reg_range(0x20000, 0x5ffff),	/* PTX CSR */
++	regmap_reg_range(0x60000, 0x9ffff),	/* IPE L2 CSR */
++	regmap_reg_range(0xb0000, 0xeffff),	/* IPO CSR */
++	regmap_reg_range(0x100000, 0x17ffff),	/* IPE PC */
++	regmap_reg_range(0x180000, 0x1bffff),	/* PRE IPO CSR */
++	regmap_reg_range(0x1d0000, 0x1dffff),	/* Tunnel parser */
++	regmap_reg_range(0x1e0000, 0x1effff),	/* Ingress parse */
++	regmap_reg_range(0x200000, 0x2fffff),	/* IPE L3 */
++	regmap_reg_range(0x300000, 0x3fffff),	/* IPE tunnel */
++	regmap_reg_range(0x400000, 0x4fffff),	/* Scheduler */
++	regmap_reg_range(0x500000, 0x503fff),	/* XGMAC0 */
++	regmap_reg_range(0x504000, 0x507fff),	/* XGMAC1 */
++	regmap_reg_range(0x508000, 0x50bfff),	/* XGMAC2 */
++	regmap_reg_range(0x50c000, 0x50ffff),	/* XGMAC3 */
++	regmap_reg_range(0x510000, 0x513fff),	/* XGMAC4 */
++	regmap_reg_range(0x514000, 0x517fff),	/* XGMAC5 */
++	regmap_reg_range(0x600000, 0x6fffff),	/* BM */
++	regmap_reg_range(0x800000, 0x9fffff),	/* QM */
++	regmap_reg_range(0xb00000, 0xbef800),	/* EDMA */
++};
++
++static const struct regmap_access_table ppe_reg_table = {
++	.yes_ranges = ppe_readable_ranges,
++	.n_yes_ranges = ARRAY_SIZE(ppe_readable_ranges),
++};
++
++static const struct regmap_config regmap_config_ipq9574 = {
++	.reg_bits = 32,
++	.reg_stride = 4,
++	.val_bits = 32,
++	.rd_table = &ppe_reg_table,
++	.wr_table = &ppe_reg_table,
++	.max_register = 0xbef800,
++	.fast_io = true,
++};
++
++static int ppe_clock_init_and_reset(struct ppe_device *ppe_dev)
++{
++	unsigned long ppe_rate = ppe_dev->clk_rate;
++	struct device *dev = ppe_dev->dev;
++	struct reset_control *rstc;
++	struct clk_bulk_data *clks;
++	struct clk *clk;
++	int ret, i;
++
++	for (i = 0; i < ppe_dev->num_icc_paths; i++) {
++		ppe_dev->icc_paths[i].name = ppe_icc_data[i].name;
++		ppe_dev->icc_paths[i].avg_bw = ppe_icc_data[i].avg_bw ? :
++					       Bps_to_icc(ppe_rate);
++		ppe_dev->icc_paths[i].peak_bw = ppe_icc_data[i].peak_bw ? :
++						Bps_to_icc(ppe_rate);
++	}
++
++	ret = devm_of_icc_bulk_get(dev, ppe_dev->num_icc_paths,
++				   ppe_dev->icc_paths);
++	if (ret)
++		return ret;
++
++	ret = icc_bulk_set_bw(ppe_dev->num_icc_paths, ppe_dev->icc_paths);
++	if (ret)
++		return ret;
++
++	/* The PPE clocks have a common parent clock. Setting the clock
++	 * rate of "ppe" ensures the clock rate of all PPE clocks is
++	 * configured to the same rate.
++	 */
++	clk = devm_clk_get(dev, "ppe");
++	if (IS_ERR(clk))
++		return PTR_ERR(clk);
++
++	ret = clk_set_rate(clk, ppe_rate);
++	if (ret)
++		return ret;
++
++	ret = devm_clk_bulk_get_all_enable(dev, &clks);
++	if (ret < 0)
++		return ret;
++
++	/* Reset the PPE. */
++	rstc = devm_reset_control_get_exclusive(dev, NULL);
++	if (IS_ERR(rstc))
++		return PTR_ERR(rstc);
++
++	ret = reset_control_assert(rstc);
++	if (ret)
++		return ret;
++
++	/* The delay 10 ms of assert is necessary for resetting PPE. */
++	usleep_range(10000, 11000);
++
++	return reset_control_deassert(rstc);
++}
++
++static int qcom_ppe_probe(struct platform_device *pdev)
++{
++	struct device *dev = &pdev->dev;
++	struct ppe_device *ppe_dev;
++	void __iomem *base;
++	int ret, num_icc;
++
++	num_icc = ARRAY_SIZE(ppe_icc_data);
++	ppe_dev = devm_kzalloc(dev, struct_size(ppe_dev, icc_paths, num_icc),
++			       GFP_KERNEL);
++	if (!ppe_dev)
++		return -ENOMEM;
++
++	base = devm_platform_ioremap_resource(pdev, 0);
++	if (IS_ERR(base))
++		return dev_err_probe(dev, PTR_ERR(base), "PPE ioremap failed\n");
++
++	ppe_dev->regmap = devm_regmap_init_mmio(dev, base, &regmap_config_ipq9574);
++	if (IS_ERR(ppe_dev->regmap))
++		return dev_err_probe(dev, PTR_ERR(ppe_dev->regmap),
++				     "PPE initialize regmap failed\n");
++	ppe_dev->dev = dev;
++	ppe_dev->clk_rate = PPE_CLK_RATE;
++	ppe_dev->num_ports = PPE_PORT_MAX;
++	ppe_dev->num_icc_paths = num_icc;
++
++	ret = ppe_clock_init_and_reset(ppe_dev);
++	if (ret)
++		return dev_err_probe(dev, ret, "PPE clock config failed\n");
++
++	platform_set_drvdata(pdev, ppe_dev);
++
++	return 0;
++}
++
++static const struct of_device_id qcom_ppe_of_match[] = {
++	{ .compatible = "qcom,ipq9574-ppe" },
++	{}
++};
++MODULE_DEVICE_TABLE(of, qcom_ppe_of_match);
++
++static struct platform_driver qcom_ppe_driver = {
++	.driver = {
++		.name = "qcom_ppe",
++		.of_match_table = qcom_ppe_of_match,
++	},
++	.probe	= qcom_ppe_probe,
++};
++module_platform_driver(qcom_ppe_driver);
++
++MODULE_LICENSE("GPL");
++MODULE_DESCRIPTION("Qualcomm Technologies, Inc. IPQ PPE driver");
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe.h
+@@ -0,0 +1,36 @@
++/* SPDX-License-Identifier: GPL-2.0-only
++ *
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++#ifndef __PPE_H__
++#define __PPE_H__
++
++#include <linux/compiler.h>
++#include <linux/interconnect.h>
++
++struct device;
++struct regmap;
++
++/**
++ * struct ppe_device - PPE device private data.
++ * @dev: PPE device structure.
++ * @regmap: PPE register map.
++ * @clk_rate: PPE clock rate.
++ * @num_ports: Number of PPE ports.
++ * @num_icc_paths: Number of interconnect paths.
++ * @icc_paths: Interconnect path array.
++ *
++ * PPE device is the instance of PPE hardware, which is used to
++ * configure PPE packet process modules such as BM (buffer management),
++ * QM (queue management), and scheduler.
++ */
++struct ppe_device {
++	struct device *dev;
++	struct regmap *regmap;
++	unsigned long clk_rate;
++	unsigned int num_ports;
++	unsigned int num_icc_paths;
++	struct icc_bulk_data icc_paths[] __counted_by(num_icc_paths);
++};
++#endif

target/linux/qualcommbe/patches-6.12/0326-net-ethernet-qualcomm-Initialize-PPE-buffer-manageme.patch

@@ -0,0 +1,328 @@
+From 6e639ab45348ee7a697db8b481fa6f8555280f58 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:38 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE buffer management for
+ IPQ9574
+
+The BM (Buffer Management) config controls the pause frame generated
+on the PPE port. There are maximum 15 BM ports and 4 groups supported,
+all BM ports are assigned to group 0 by default. The number of hardware
+buffers configured for the port influence the threshold of the flow
+control for that port.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ drivers/net/ethernet/qualcomm/ppe/Makefile    |   2 +-
+ drivers/net/ethernet/qualcomm/ppe/ppe.c       |   5 +
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 195 ++++++++++++++++++
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    |  12 ++
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  59 ++++++
+ 5 files changed, 272 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+
+--- a/drivers/net/ethernet/qualcomm/ppe/Makefile
++++ b/drivers/net/ethernet/qualcomm/ppe/Makefile
+@@ -4,4 +4,4 @@
+ #
+ 
+ obj-$(CONFIG_QCOM_PPE) += qcom-ppe.o
+-qcom-ppe-objs := ppe.o
++qcom-ppe-objs := ppe.o ppe_config.o
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe.c
+@@ -15,6 +15,7 @@
+ #include <linux/reset.h>
+ 
+ #include "ppe.h"
++#include "ppe_config.h"
+ 
+ #define PPE_PORT_MAX		8
+ #define PPE_CLK_RATE		353000000
+@@ -194,6 +195,10 @@ static int qcom_ppe_probe(struct platfor
+ 	if (ret)
+ 		return dev_err_probe(dev, ret, "PPE clock config failed\n");
+ 
++	ret = ppe_hw_config(ppe_dev);
++	if (ret)
++		return dev_err_probe(dev, ret, "PPE HW config failed\n");
++
+ 	platform_set_drvdata(pdev, ppe_dev);
+ 
+ 	return 0;
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -0,0 +1,195 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++/* PPE HW initialization configs such as BM(buffer management),
++ * QM(queue management) and scheduler configs.
++ */
++
++#include <linux/bitfield.h>
++#include <linux/bits.h>
++#include <linux/device.h>
++#include <linux/regmap.h>
++
++#include "ppe.h"
++#include "ppe_config.h"
++#include "ppe_regs.h"
++
++/**
++ * struct ppe_bm_port_config - PPE BM port configuration.
++ * @port_id_start: The fist BM port ID to configure.
++ * @port_id_end: The last BM port ID to configure.
++ * @pre_alloc: BM port dedicated buffer number.
++ * @in_fly_buf: Buffer number for receiving the packet after pause frame sent.
++ * @ceil: Ceil to generate the back pressure.
++ * @weight: Weight value.
++ * @resume_offset: Resume offset from the threshold value.
++ * @resume_ceil: Ceil to resume from the back pressure state.
++ * @dynamic: Dynamic threshold used or not.
++ *
++ * The is for configuring the threshold that impacts the port
++ * flow control.
++ */
++struct ppe_bm_port_config {
++	unsigned int port_id_start;
++	unsigned int port_id_end;
++	unsigned int pre_alloc;
++	unsigned int in_fly_buf;
++	unsigned int ceil;
++	unsigned int weight;
++	unsigned int resume_offset;
++	unsigned int resume_ceil;
++	bool dynamic;
++};
++
++/* Assign the share buffer number 1550 to group 0 by default. */
++static const int ipq9574_ppe_bm_group_config = 1550;
++
++/* The buffer configurations per PPE port. There are 15 BM ports and
++ * 4 BM groups supported by PPE. BM port (0-7) is for EDMA port 0,
++ * BM port (8-13) is for PPE physical port 1-6 and BM port 14 is for
++ * EIP port.
++ */
++static const struct ppe_bm_port_config ipq9574_ppe_bm_port_config[] = {
++	{
++		/* Buffer configuration for the BM port ID 0 of EDMA. */
++		.port_id_start	= 0,
++		.port_id_end	= 0,
++		.pre_alloc	= 0,
++		.in_fly_buf	= 100,
++		.ceil		= 1146,
++		.weight		= 7,
++		.resume_offset	= 8,
++		.resume_ceil	= 0,
++		.dynamic	= true,
++	},
++	{
++		/* Buffer configuration for the BM port ID 1-7 of EDMA. */
++		.port_id_start	= 1,
++		.port_id_end	= 7,
++		.pre_alloc	= 0,
++		.in_fly_buf	= 100,
++		.ceil		= 250,
++		.weight		= 4,
++		.resume_offset	= 36,
++		.resume_ceil	= 0,
++		.dynamic	= true,
++	},
++	{
++		/* Buffer configuration for the BM port ID 8-13 of PPE ports. */
++		.port_id_start	= 8,
++		.port_id_end	= 13,
++		.pre_alloc	= 0,
++		.in_fly_buf	= 128,
++		.ceil		= 250,
++		.weight		= 4,
++		.resume_offset	= 36,
++		.resume_ceil	= 0,
++		.dynamic	= true,
++	},
++	{
++		/* Buffer configuration for the BM port ID 14 of EIP. */
++		.port_id_start	= 14,
++		.port_id_end	= 14,
++		.pre_alloc	= 0,
++		.in_fly_buf	= 40,
++		.ceil		= 250,
++		.weight		= 4,
++		.resume_offset	= 36,
++		.resume_ceil	= 0,
++		.dynamic	= true,
++	},
++};
++
++static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
++				   const struct ppe_bm_port_config port_cfg)
++{
++	u32 reg, val, bm_fc_val[2];
++	int ret;
++
++	reg = PPE_BM_PORT_FC_CFG_TBL_ADDR + PPE_BM_PORT_FC_CFG_TBL_INC * bm_port_id;
++	ret = regmap_bulk_read(ppe_dev->regmap, reg,
++			       bm_fc_val, ARRAY_SIZE(bm_fc_val));
++	if (ret)
++		return ret;
++
++	/* Configure BM flow control related threshold. */
++	PPE_BM_PORT_FC_SET_WEIGHT(bm_fc_val, port_cfg.weight);
++	PPE_BM_PORT_FC_SET_RESUME_OFFSET(bm_fc_val, port_cfg.resume_offset);
++	PPE_BM_PORT_FC_SET_RESUME_THRESHOLD(bm_fc_val, port_cfg.resume_ceil);
++	PPE_BM_PORT_FC_SET_DYNAMIC(bm_fc_val, port_cfg.dynamic);
++	PPE_BM_PORT_FC_SET_REACT_LIMIT(bm_fc_val, port_cfg.in_fly_buf);
++	PPE_BM_PORT_FC_SET_PRE_ALLOC(bm_fc_val, port_cfg.pre_alloc);
++
++	/* Configure low/high bits of the ceiling for the BM port. */
++	val = FIELD_GET(GENMASK(2, 0), port_cfg.ceil);
++	PPE_BM_PORT_FC_SET_CEILING_LOW(bm_fc_val, val);
++	val = FIELD_GET(GENMASK(10, 3), port_cfg.ceil);
++	PPE_BM_PORT_FC_SET_CEILING_HIGH(bm_fc_val, val);
++
++	ret = regmap_bulk_write(ppe_dev->regmap, reg,
++				bm_fc_val, ARRAY_SIZE(bm_fc_val));
++	if (ret)
++		return ret;
++
++	/* Assign the default group ID 0 to the BM port. */
++	val = FIELD_PREP(PPE_BM_PORT_GROUP_ID_SHARED_GROUP_ID, 0);
++	reg = PPE_BM_PORT_GROUP_ID_ADDR + PPE_BM_PORT_GROUP_ID_INC * bm_port_id;
++	ret = regmap_update_bits(ppe_dev->regmap, reg,
++				 PPE_BM_PORT_GROUP_ID_SHARED_GROUP_ID,
++				 val);
++	if (ret)
++		return ret;
++
++	/* Enable BM port flow control. */
++	reg = PPE_BM_PORT_FC_MODE_ADDR + PPE_BM_PORT_FC_MODE_INC * bm_port_id;
++
++	return regmap_set_bits(ppe_dev->regmap, reg, PPE_BM_PORT_FC_MODE_EN);
++}
++
++/* Configure the buffer threshold for the port flow control function. */
++static int ppe_config_bm(struct ppe_device *ppe_dev)
++{
++	const struct ppe_bm_port_config *port_cfg;
++	unsigned int i, bm_port_id, port_cfg_cnt;
++	u32 reg, val;
++	int ret;
++
++	/* Configure the allocated buffer number only for group 0.
++	 * The buffer number of group 1-3 is already cleared to 0
++	 * after PPE reset during the probe of PPE driver.
++	 */
++	reg = PPE_BM_SHARED_GROUP_CFG_ADDR;
++	val = FIELD_PREP(PPE_BM_SHARED_GROUP_CFG_SHARED_LIMIT,
++			 ipq9574_ppe_bm_group_config);
++	ret = regmap_update_bits(ppe_dev->regmap, reg,
++				 PPE_BM_SHARED_GROUP_CFG_SHARED_LIMIT,
++				 val);
++	if (ret)
++		goto bm_config_fail;
++
++	/* Configure buffer thresholds for the BM ports. */
++	port_cfg = ipq9574_ppe_bm_port_config;
++	port_cfg_cnt = ARRAY_SIZE(ipq9574_ppe_bm_port_config);
++	for (i = 0; i < port_cfg_cnt; i++) {
++		for (bm_port_id = port_cfg[i].port_id_start;
++		     bm_port_id <= port_cfg[i].port_id_end; bm_port_id++) {
++			ret = ppe_config_bm_threshold(ppe_dev, bm_port_id,
++						      port_cfg[i]);
++			if (ret)
++				goto bm_config_fail;
++		}
++	}
++
++	return 0;
++
++bm_config_fail:
++	dev_err(ppe_dev->dev, "PPE BM config error %d\n", ret);
++	return ret;
++}
++
++int ppe_hw_config(struct ppe_device *ppe_dev)
++{
++	return ppe_config_bm(ppe_dev);
++}
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -0,0 +1,12 @@
++/* SPDX-License-Identifier: GPL-2.0-only
++ *
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++#ifndef __PPE_CONFIG_H__
++#define __PPE_CONFIG_H__
++
++#include "ppe.h"
++
++int ppe_hw_config(struct ppe_device *ppe_dev);
++#endif
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -0,0 +1,59 @@
++/* SPDX-License-Identifier: GPL-2.0-only
++ *
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++/* PPE hardware register and table declarations. */
++#ifndef __PPE_REGS_H__
++#define __PPE_REGS_H__
++
++#include <linux/bitfield.h>
++
++/* There are 15 BM ports and 4 BM groups supported by PPE.
++ * BM port (0-7) is for EDMA port 0, BM port (8-13) is for
++ * PPE physical port 1-6 and BM port 14 is for EIP port.
++ */
++#define PPE_BM_PORT_FC_MODE_ADDR		0x600100
++#define PPE_BM_PORT_FC_MODE_ENTRIES		15
++#define PPE_BM_PORT_FC_MODE_INC			0x4
++#define PPE_BM_PORT_FC_MODE_EN			BIT(0)
++
++#define PPE_BM_PORT_GROUP_ID_ADDR		0x600180
++#define PPE_BM_PORT_GROUP_ID_ENTRIES		15
++#define PPE_BM_PORT_GROUP_ID_INC		0x4
++#define PPE_BM_PORT_GROUP_ID_SHARED_GROUP_ID	GENMASK(1, 0)
++
++#define PPE_BM_SHARED_GROUP_CFG_ADDR		0x600290
++#define PPE_BM_SHARED_GROUP_CFG_ENTRIES		4
++#define PPE_BM_SHARED_GROUP_CFG_INC		0x4
++#define PPE_BM_SHARED_GROUP_CFG_SHARED_LIMIT	GENMASK(10, 0)
++
++#define PPE_BM_PORT_FC_CFG_TBL_ADDR		0x601000
++#define PPE_BM_PORT_FC_CFG_TBL_ENTRIES		15
++#define PPE_BM_PORT_FC_CFG_TBL_INC		0x10
++#define PPE_BM_PORT_FC_W0_REACT_LIMIT		GENMASK(8, 0)
++#define PPE_BM_PORT_FC_W0_RESUME_THRESHOLD	GENMASK(17, 9)
++#define PPE_BM_PORT_FC_W0_RESUME_OFFSET		GENMASK(28, 18)
++#define PPE_BM_PORT_FC_W0_CEILING_LOW		GENMASK(31, 29)
++#define PPE_BM_PORT_FC_W1_CEILING_HIGH		GENMASK(7, 0)
++#define PPE_BM_PORT_FC_W1_WEIGHT		GENMASK(10, 8)
++#define PPE_BM_PORT_FC_W1_DYNAMIC		BIT(11)
++#define PPE_BM_PORT_FC_W1_PRE_ALLOC		GENMASK(22, 12)
++
++#define PPE_BM_PORT_FC_SET_REACT_LIMIT(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_BM_PORT_FC_W0_REACT_LIMIT)
++#define PPE_BM_PORT_FC_SET_RESUME_THRESHOLD(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_BM_PORT_FC_W0_RESUME_THRESHOLD)
++#define PPE_BM_PORT_FC_SET_RESUME_OFFSET(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_BM_PORT_FC_W0_RESUME_OFFSET)
++#define PPE_BM_PORT_FC_SET_CEILING_LOW(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_BM_PORT_FC_W0_CEILING_LOW)
++#define PPE_BM_PORT_FC_SET_CEILING_HIGH(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_CEILING_HIGH)
++#define PPE_BM_PORT_FC_SET_WEIGHT(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_WEIGHT)
++#define PPE_BM_PORT_FC_SET_DYNAMIC(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_DYNAMIC)
++#define PPE_BM_PORT_FC_SET_PRE_ALLOC(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_PRE_ALLOC)
++#endif

target/linux/qualcommbe/patches-6.12/0327-net-ethernet-qualcomm-Initialize-PPE-queue-managemen.patch

@@ -0,0 +1,320 @@
+From 9be6c3590ef3c241e6a3cfd05291304a1f973bcf Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:39 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE queue management for
+ IPQ9574
+
+QM (queue management) configurations decide the length of PPE
+queues and the queue depth for these queues which are used to
+drop packets in events of congestion.
+
+There are two types of PPE queues - unicast queues (0-255) and
+multicast queues (256-299). These queue types are used to forward
+different types of traffic, and are configured with different
+lengths.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 177 +++++++++++++++++-
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  85 +++++++++
+ 2 files changed, 261 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -43,6 +43,29 @@ struct ppe_bm_port_config {
+ 	bool dynamic;
+ };
+ 
++/**
++ * struct ppe_qm_queue_config - PPE queue config.
++ * @queue_start: PPE start of queue ID.
++ * @queue_end: PPE end of queue ID.
++ * @prealloc_buf: Queue dedicated buffer number.
++ * @ceil: Ceil to start drop packet from queue.
++ * @weight: Weight value.
++ * @resume_offset: Resume offset from the threshold.
++ * @dynamic: Threshold value is decided dynamically or statically.
++ *
++ * Queue configuration decides the threshold to drop packet from PPE
++ * hardware queue.
++ */
++struct ppe_qm_queue_config {
++	unsigned int queue_start;
++	unsigned int queue_end;
++	unsigned int prealloc_buf;
++	unsigned int ceil;
++	unsigned int weight;
++	unsigned int resume_offset;
++	bool dynamic;
++};
++
+ /* Assign the share buffer number 1550 to group 0 by default. */
+ static const int ipq9574_ppe_bm_group_config = 1550;
+ 
+@@ -102,6 +125,33 @@ static const struct ppe_bm_port_config i
+ 	},
+ };
+ 
++/* Default QM group settings for IPQ9754. */
++static const int ipq9574_ppe_qm_group_config = 2000;
++
++/* Default QM settings for unicast and multicast queues for IPQ9754. */
++static const struct ppe_qm_queue_config ipq9574_ppe_qm_queue_config[] = {
++	{
++		/* QM settings for unicast queues 0 to 255. */
++		.queue_start	= 0,
++		.queue_end	= 255,
++		.prealloc_buf	= 0,
++		.ceil		= 1200,
++		.weight		= 7,
++		.resume_offset	= 36,
++		.dynamic	= true,
++	},
++	{
++		/* QM settings for multicast queues 256 to 299. */
++		.queue_start	= 256,
++		.queue_end	= 299,
++		.prealloc_buf	= 0,
++		.ceil		= 250,
++		.weight		= 0,
++		.resume_offset	= 36,
++		.dynamic	= false,
++	},
++};
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -189,7 +239,132 @@ bm_config_fail:
+ 	return ret;
+ }
+ 
++/* Configure PPE hardware queue depth, which is decided by the threshold
++ * of queue.
++ */
++static int ppe_config_qm(struct ppe_device *ppe_dev)
++{
++	const struct ppe_qm_queue_config *queue_cfg;
++	int ret, i, queue_id, queue_cfg_count;
++	u32 reg, multicast_queue_cfg[5];
++	u32 unicast_queue_cfg[4];
++	u32 group_cfg[3];
++
++	/* Assign the buffer number to the group 0 by default. */
++	reg = PPE_AC_GRP_CFG_TBL_ADDR;
++	ret = regmap_bulk_read(ppe_dev->regmap, reg,
++			       group_cfg, ARRAY_SIZE(group_cfg));
++	if (ret)
++		goto qm_config_fail;
++
++	PPE_AC_GRP_SET_BUF_LIMIT(group_cfg, ipq9574_ppe_qm_group_config);
++
++	ret = regmap_bulk_write(ppe_dev->regmap, reg,
++				group_cfg, ARRAY_SIZE(group_cfg));
++	if (ret)
++		goto qm_config_fail;
++
++	queue_cfg = ipq9574_ppe_qm_queue_config;
++	queue_cfg_count = ARRAY_SIZE(ipq9574_ppe_qm_queue_config);
++	for (i = 0; i < queue_cfg_count; i++) {
++		queue_id = queue_cfg[i].queue_start;
++
++		/* Configure threshold for dropping packets separately for
++		 * unicast and multicast PPE queues.
++		 */
++		while (queue_id <= queue_cfg[i].queue_end) {
++			if (queue_id < PPE_AC_UNICAST_QUEUE_CFG_TBL_ENTRIES) {
++				reg = PPE_AC_UNICAST_QUEUE_CFG_TBL_ADDR +
++				      PPE_AC_UNICAST_QUEUE_CFG_TBL_INC * queue_id;
++
++				ret = regmap_bulk_read(ppe_dev->regmap, reg,
++						       unicast_queue_cfg,
++						       ARRAY_SIZE(unicast_queue_cfg));
++				if (ret)
++					goto qm_config_fail;
++
++				PPE_AC_UNICAST_QUEUE_SET_EN(unicast_queue_cfg, true);
++				PPE_AC_UNICAST_QUEUE_SET_GRP_ID(unicast_queue_cfg, 0);
++				PPE_AC_UNICAST_QUEUE_SET_PRE_LIMIT(unicast_queue_cfg,
++								   queue_cfg[i].prealloc_buf);
++				PPE_AC_UNICAST_QUEUE_SET_DYNAMIC(unicast_queue_cfg,
++								 queue_cfg[i].dynamic);
++				PPE_AC_UNICAST_QUEUE_SET_WEIGHT(unicast_queue_cfg,
++								queue_cfg[i].weight);
++				PPE_AC_UNICAST_QUEUE_SET_THRESHOLD(unicast_queue_cfg,
++								   queue_cfg[i].ceil);
++				PPE_AC_UNICAST_QUEUE_SET_GRN_RESUME(unicast_queue_cfg,
++								    queue_cfg[i].resume_offset);
++
++				ret = regmap_bulk_write(ppe_dev->regmap, reg,
++							unicast_queue_cfg,
++							ARRAY_SIZE(unicast_queue_cfg));
++				if (ret)
++					goto qm_config_fail;
++			} else {
++				reg = PPE_AC_MULTICAST_QUEUE_CFG_TBL_ADDR +
++				      PPE_AC_MULTICAST_QUEUE_CFG_TBL_INC * queue_id;
++
++				ret = regmap_bulk_read(ppe_dev->regmap, reg,
++						       multicast_queue_cfg,
++						       ARRAY_SIZE(multicast_queue_cfg));
++				if (ret)
++					goto qm_config_fail;
++
++				PPE_AC_MULTICAST_QUEUE_SET_EN(multicast_queue_cfg, true);
++				PPE_AC_MULTICAST_QUEUE_SET_GRN_GRP_ID(multicast_queue_cfg, 0);
++				PPE_AC_MULTICAST_QUEUE_SET_GRN_PRE_LIMIT(multicast_queue_cfg,
++									 queue_cfg[i].prealloc_buf);
++				PPE_AC_MULTICAST_QUEUE_SET_GRN_THRESHOLD(multicast_queue_cfg,
++									 queue_cfg[i].ceil);
++				PPE_AC_MULTICAST_QUEUE_SET_GRN_RESUME(multicast_queue_cfg,
++								      queue_cfg[i].resume_offset);
++
++				ret = regmap_bulk_write(ppe_dev->regmap, reg,
++							multicast_queue_cfg,
++							ARRAY_SIZE(multicast_queue_cfg));
++				if (ret)
++					goto qm_config_fail;
++			}
++
++			/* Enable enqueue. */
++			reg = PPE_ENQ_OPR_TBL_ADDR + PPE_ENQ_OPR_TBL_INC * queue_id;
++			ret = regmap_clear_bits(ppe_dev->regmap, reg,
++						PPE_ENQ_OPR_TBL_ENQ_DISABLE);
++			if (ret)
++				goto qm_config_fail;
++
++			/* Enable dequeue. */
++			reg = PPE_DEQ_OPR_TBL_ADDR + PPE_DEQ_OPR_TBL_INC * queue_id;
++			ret = regmap_clear_bits(ppe_dev->regmap, reg,
++						PPE_DEQ_OPR_TBL_DEQ_DISABLE);
++			if (ret)
++				goto qm_config_fail;
++
++			queue_id++;
++		}
++	}
++
++	/* Enable queue counter for all PPE hardware queues. */
++	ret = regmap_set_bits(ppe_dev->regmap, PPE_EG_BRIDGE_CONFIG_ADDR,
++			      PPE_EG_BRIDGE_CONFIG_QUEUE_CNT_EN);
++	if (ret)
++		goto qm_config_fail;
++
++	return 0;
++
++qm_config_fail:
++	dev_err(ppe_dev->dev, "PPE QM config error %d\n", ret);
++	return ret;
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+-	return ppe_config_bm(ppe_dev);
++	int ret;
++
++	ret = ppe_config_bm(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_config_qm(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -9,6 +9,16 @@
+ 
+ #include <linux/bitfield.h>
+ 
++/* PPE queue counters enable/disable control. */
++#define PPE_EG_BRIDGE_CONFIG_ADDR		0x20044
++#define PPE_EG_BRIDGE_CONFIG_QUEUE_CNT_EN	BIT(2)
++
++/* Table addresses for per-queue dequeue setting. */
++#define PPE_DEQ_OPR_TBL_ADDR			0x430000
++#define PPE_DEQ_OPR_TBL_ENTRIES			300
++#define PPE_DEQ_OPR_TBL_INC			0x10
++#define PPE_DEQ_OPR_TBL_DEQ_DISABLE		BIT(0)
++
+ /* There are 15 BM ports and 4 BM groups supported by PPE.
+  * BM port (0-7) is for EDMA port 0, BM port (8-13) is for
+  * PPE physical port 1-6 and BM port 14 is for EIP port.
+@@ -56,4 +66,79 @@
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_DYNAMIC)
+ #define PPE_BM_PORT_FC_SET_PRE_ALLOC(tbl_cfg, value)	\
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_PRE_ALLOC)
++
++/* PPE unicast queue (0-255) configurations. */
++#define PPE_AC_UNICAST_QUEUE_CFG_TBL_ADDR	0x848000
++#define PPE_AC_UNICAST_QUEUE_CFG_TBL_ENTRIES	256
++#define PPE_AC_UNICAST_QUEUE_CFG_TBL_INC	0x10
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_EN		BIT(0)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_WRED_EN	BIT(1)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_FC_EN	BIT(2)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_CLR_AWARE	BIT(3)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_GRP_ID	GENMASK(5, 4)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_PRE_LIMIT	GENMASK(16, 6)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_DYNAMIC	BIT(17)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_WEIGHT	GENMASK(20, 18)
++#define PPE_AC_UNICAST_QUEUE_CFG_W0_THRESHOLD	GENMASK(31, 21)
++#define PPE_AC_UNICAST_QUEUE_CFG_W3_GRN_RESUME	GENMASK(23, 13)
++
++#define PPE_AC_UNICAST_QUEUE_SET_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_UNICAST_QUEUE_CFG_W0_EN)
++#define PPE_AC_UNICAST_QUEUE_SET_GRP_ID(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_UNICAST_QUEUE_CFG_W0_GRP_ID)
++#define PPE_AC_UNICAST_QUEUE_SET_PRE_LIMIT(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_UNICAST_QUEUE_CFG_W0_PRE_LIMIT)
++#define PPE_AC_UNICAST_QUEUE_SET_DYNAMIC(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_UNICAST_QUEUE_CFG_W0_DYNAMIC)
++#define PPE_AC_UNICAST_QUEUE_SET_WEIGHT(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_UNICAST_QUEUE_CFG_W0_WEIGHT)
++#define PPE_AC_UNICAST_QUEUE_SET_THRESHOLD(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_UNICAST_QUEUE_CFG_W0_THRESHOLD)
++#define PPE_AC_UNICAST_QUEUE_SET_GRN_RESUME(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x3, value, PPE_AC_UNICAST_QUEUE_CFG_W3_GRN_RESUME)
++
++/* PPE multicast queue (256-299) configurations. */
++#define PPE_AC_MULTICAST_QUEUE_CFG_TBL_ADDR	0x84a000
++#define PPE_AC_MULTICAST_QUEUE_CFG_TBL_ENTRIES	44
++#define PPE_AC_MULTICAST_QUEUE_CFG_TBL_INC	0x10
++#define PPE_AC_MULTICAST_QUEUE_CFG_W0_EN	BIT(0)
++#define PPE_AC_MULTICAST_QUEUE_CFG_W0_FC_EN	BIT(1)
++#define PPE_AC_MULTICAST_QUEUE_CFG_W0_CLR_AWARE	BIT(2)
++#define PPE_AC_MULTICAST_QUEUE_CFG_W0_GRP_ID	GENMASK(4, 3)
++#define PPE_AC_MULTICAST_QUEUE_CFG_W0_PRE_LIMIT	GENMASK(15, 5)
++#define PPE_AC_MULTICAST_QUEUE_CFG_W0_THRESHOLD	GENMASK(26, 16)
++#define PPE_AC_MULTICAST_QUEUE_CFG_W2_RESUME	GENMASK(17, 7)
++
++#define PPE_AC_MULTICAST_QUEUE_SET_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_MULTICAST_QUEUE_CFG_W0_EN)
++#define PPE_AC_MULTICAST_QUEUE_SET_GRN_GRP_ID(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_MULTICAST_QUEUE_CFG_W0_GRP_ID)
++#define PPE_AC_MULTICAST_QUEUE_SET_GRN_PRE_LIMIT(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_MULTICAST_QUEUE_CFG_W0_PRE_LIMIT)
++#define PPE_AC_MULTICAST_QUEUE_SET_GRN_THRESHOLD(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_AC_MULTICAST_QUEUE_CFG_W0_THRESHOLD)
++#define PPE_AC_MULTICAST_QUEUE_SET_GRN_RESUME(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x2, value, PPE_AC_MULTICAST_QUEUE_CFG_W2_RESUME)
++
++/* PPE admission control group (0-3) configurations */
++#define PPE_AC_GRP_CFG_TBL_ADDR			0x84c000
++#define PPE_AC_GRP_CFG_TBL_ENTRIES		0x4
++#define PPE_AC_GRP_CFG_TBL_INC			0x10
++#define PPE_AC_GRP_W0_AC_EN			BIT(0)
++#define PPE_AC_GRP_W0_AC_FC_EN			BIT(1)
++#define PPE_AC_GRP_W0_CLR_AWARE			BIT(2)
++#define PPE_AC_GRP_W0_THRESHOLD_LOW		GENMASK(31, 25)
++#define PPE_AC_GRP_W1_THRESHOLD_HIGH		GENMASK(3, 0)
++#define PPE_AC_GRP_W1_BUF_LIMIT			GENMASK(14, 4)
++#define PPE_AC_GRP_W2_RESUME_GRN		GENMASK(15, 5)
++#define PPE_AC_GRP_W2_PRE_ALLOC			GENMASK(26, 16)
++
++#define PPE_AC_GRP_SET_BUF_LIMIT(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_AC_GRP_W1_BUF_LIMIT)
++
++/* Table addresses for per-queue enqueue setting. */
++#define PPE_ENQ_OPR_TBL_ADDR			0x85c000
++#define PPE_ENQ_OPR_TBL_ENTRIES			300
++#define PPE_ENQ_OPR_TBL_INC			0x10
++#define PPE_ENQ_OPR_TBL_ENQ_DISABLE		BIT(0)
+ #endif

target/linux/qualcommbe/patches-6.12/0328-net-ethernet-qualcomm-Initialize-the-PPE-scheduler-s.patch

@@ -0,0 +1,1000 @@
+From 333edaf474cd707b0a04c57f255b56bc3c015789 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:40 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize the PPE scheduler
+ settings
+
+The PPE scheduler settings determine the priority of scheduling the
+packet across the different hardware queues per PPE port.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 788 +++++++++++++++++-
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    |  37 +
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  97 +++
+ 3 files changed, 921 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -16,6 +16,8 @@
+ #include "ppe_config.h"
+ #include "ppe_regs.h"
+ 
++#define PPE_QUEUE_SCH_PRI_NUM		8
++
+ /**
+  * struct ppe_bm_port_config - PPE BM port configuration.
+  * @port_id_start: The fist BM port ID to configure.
+@@ -66,6 +68,66 @@ struct ppe_qm_queue_config {
+ 	bool dynamic;
+ };
+ 
++/**
++ * struct ppe_scheduler_bm_config - PPE arbitration for buffer config.
++ * @valid: Arbitration entry valid or not.
++ * @is_egress: Arbitration entry for egress or not.
++ * @port: Port ID to use arbitration entry.
++ * @second_valid: Second port valid or not.
++ * @second_port: Second port to use.
++ *
++ * Configure the scheduler settings for accessing and releasing the PPE buffers.
++ */
++struct ppe_scheduler_bm_config {
++	bool valid;
++	bool is_egress;
++	unsigned int port;
++	bool second_valid;
++	unsigned int second_port;
++};
++
++/**
++ * struct ppe_scheduler_qm_config - PPE arbitration for scheduler config.
++ * @ensch_port_bmp: Port bit map for enqueue scheduler.
++ * @ensch_port: Port ID to enqueue scheduler.
++ * @desch_port: Port ID to dequeue scheduler.
++ * @desch_second_valid: Dequeue for the second port valid or not.
++ * @desch_second_port: Second port ID to dequeue scheduler.
++ *
++ * Configure the scheduler settings for enqueuing and dequeuing packets on
++ * the PPE port.
++ */
++struct ppe_scheduler_qm_config {
++	unsigned int ensch_port_bmp;
++	unsigned int ensch_port;
++	unsigned int desch_port;
++	bool desch_second_valid;
++	unsigned int desch_second_port;
++};
++
++/**
++ * struct ppe_scheduler_port_config - PPE port scheduler config.
++ * @port: Port ID to be scheduled.
++ * @flow_level: Scheduler flow level or not.
++ * @node_id: Node ID, for level 0, queue ID is used.
++ * @loop_num: Loop number of scheduler config.
++ * @pri_max: Max priority configured.
++ * @flow_id: Strict priority ID.
++ * @drr_node_id: Node ID for scheduler.
++ *
++ * PPE port scheduler configuration which decides the priority in the
++ * packet scheduler for the egress port.
++ */
++struct ppe_scheduler_port_config {
++	unsigned int port;
++	bool flow_level;
++	unsigned int node_id;
++	unsigned int loop_num;
++	unsigned int pri_max;
++	unsigned int flow_id;
++	unsigned int drr_node_id;
++};
++
+ /* Assign the share buffer number 1550 to group 0 by default. */
+ static const int ipq9574_ppe_bm_group_config = 1550;
+ 
+@@ -152,6 +214,599 @@ static const struct ppe_qm_queue_config
+ 	},
+ };
+ 
++/* Scheduler configuration for the assigning and releasing buffers for the
++ * packet passing through PPE, which is different per SoC.
++ */
++static const struct ppe_scheduler_bm_config ipq9574_ppe_sch_bm_config[] = {
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 7, 0, 0},
++	{1, 1, 7, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 2, 0, 0},
++	{1, 1, 2, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 3, 0, 0},
++	{1, 1, 3, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 7, 0, 0},
++	{1, 1, 7, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 4, 0, 0},
++	{1, 1, 4, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 2, 0, 0},
++	{1, 1, 2, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 7, 0, 0},
++	{1, 1, 7, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 3, 0, 0},
++	{1, 1, 3, 0, 0},
++	{1, 0, 1, 0, 0},
++	{1, 1, 1, 0, 0},
++	{1, 0, 0, 0, 0},
++	{1, 1, 0, 0, 0},
++	{1, 0, 5, 0, 0},
++	{1, 1, 5, 0, 0},
++	{1, 0, 6, 0, 0},
++	{1, 1, 6, 0, 0},
++	{1, 0, 4, 0, 0},
++	{1, 1, 4, 0, 0},
++	{1, 0, 7, 0, 0},
++	{1, 1, 7, 0, 0},
++};
++
++/* Scheduler configuration for dispatching packet on PPE queues, which
++ * is different per SoC.
++ */
++static const struct ppe_scheduler_qm_config ipq9574_ppe_sch_qm_config[] = {
++	{0x98, 6, 0, 1, 1},
++	{0x94, 5, 6, 1, 3},
++	{0x86, 0, 5, 1, 4},
++	{0x8C, 1, 6, 1, 0},
++	{0x1C, 7, 5, 1, 1},
++	{0x98, 2, 6, 1, 0},
++	{0x1C, 5, 7, 1, 1},
++	{0x34, 3, 6, 1, 0},
++	{0x8C, 4, 5, 1, 1},
++	{0x98, 2, 6, 1, 0},
++	{0x8C, 5, 4, 1, 1},
++	{0xA8, 0, 6, 1, 2},
++	{0x98, 5, 1, 1, 0},
++	{0x98, 6, 5, 1, 2},
++	{0x89, 1, 6, 1, 4},
++	{0xA4, 3, 0, 1, 1},
++	{0x8C, 5, 6, 1, 4},
++	{0xA8, 0, 2, 1, 1},
++	{0x98, 6, 5, 1, 0},
++	{0xC4, 4, 3, 1, 1},
++	{0x94, 6, 5, 1, 0},
++	{0x1C, 7, 6, 1, 1},
++	{0x98, 2, 5, 1, 0},
++	{0x1C, 6, 7, 1, 1},
++	{0x1C, 5, 6, 1, 0},
++	{0x94, 3, 5, 1, 1},
++	{0x8C, 4, 6, 1, 0},
++	{0x94, 1, 5, 1, 3},
++	{0x94, 6, 1, 1, 0},
++	{0xD0, 3, 5, 1, 2},
++	{0x98, 6, 0, 1, 1},
++	{0x94, 5, 6, 1, 3},
++	{0x94, 1, 5, 1, 0},
++	{0x98, 2, 6, 1, 1},
++	{0x8C, 4, 5, 1, 0},
++	{0x1C, 7, 6, 1, 1},
++	{0x8C, 0, 5, 1, 4},
++	{0x89, 1, 6, 1, 2},
++	{0x98, 5, 0, 1, 1},
++	{0x94, 6, 5, 1, 3},
++	{0x92, 0, 6, 1, 2},
++	{0x98, 1, 5, 1, 0},
++	{0x98, 6, 2, 1, 1},
++	{0xD0, 0, 5, 1, 3},
++	{0x94, 6, 0, 1, 1},
++	{0x8C, 5, 6, 1, 4},
++	{0x8C, 1, 5, 1, 0},
++	{0x1C, 6, 7, 1, 1},
++	{0x1C, 5, 6, 1, 0},
++	{0xB0, 2, 3, 1, 1},
++	{0xC4, 4, 5, 1, 0},
++	{0x8C, 6, 4, 1, 1},
++	{0xA4, 3, 6, 1, 0},
++	{0x1C, 5, 7, 1, 1},
++	{0x4C, 0, 5, 1, 4},
++	{0x8C, 6, 0, 1, 1},
++	{0x34, 7, 6, 1, 3},
++	{0x94, 5, 0, 1, 1},
++	{0x98, 6, 5, 1, 2},
++};
++
++static const struct ppe_scheduler_port_config ppe_port_sch_config[] = {
++	{
++		.port		= 0,
++		.flow_level	= true,
++		.node_id	= 0,
++		.loop_num	= 1,
++		.pri_max	= 1,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 0,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 8,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 16,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 24,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 32,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 40,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 48,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 56,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 256,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 0,
++		.flow_level	= false,
++		.node_id	= 264,
++		.loop_num	= 8,
++		.pri_max	= 8,
++		.flow_id	= 0,
++		.drr_node_id	= 0,
++	},
++	{
++		.port		= 1,
++		.flow_level	= true,
++		.node_id	= 36,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 1,
++		.drr_node_id	= 8,
++	},
++	{
++		.port		= 1,
++		.flow_level	= false,
++		.node_id	= 144,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 36,
++		.drr_node_id	= 48,
++	},
++	{
++		.port		= 1,
++		.flow_level	= false,
++		.node_id	= 272,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 36,
++		.drr_node_id	= 48,
++	},
++	{
++		.port		= 2,
++		.flow_level	= true,
++		.node_id	= 40,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 2,
++		.drr_node_id	= 12,
++	},
++	{
++		.port		= 2,
++		.flow_level	= false,
++		.node_id	= 160,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 40,
++		.drr_node_id	= 64,
++	},
++	{
++		.port		= 2,
++		.flow_level	= false,
++		.node_id	= 276,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 40,
++		.drr_node_id	= 64,
++	},
++	{
++		.port		= 3,
++		.flow_level	= true,
++		.node_id	= 44,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 3,
++		.drr_node_id	= 16,
++	},
++	{
++		.port		= 3,
++		.flow_level	= false,
++		.node_id	= 176,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 44,
++		.drr_node_id	= 80,
++	},
++	{
++		.port		= 3,
++		.flow_level	= false,
++		.node_id	= 280,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 44,
++		.drr_node_id	= 80,
++	},
++	{
++		.port		= 4,
++		.flow_level	= true,
++		.node_id	= 48,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 4,
++		.drr_node_id	= 20,
++	},
++	{
++		.port		= 4,
++		.flow_level	= false,
++		.node_id	= 192,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 48,
++		.drr_node_id	= 96,
++	},
++	{
++		.port		= 4,
++		.flow_level	= false,
++		.node_id	= 284,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 48,
++		.drr_node_id	= 96,
++	},
++	{
++		.port		= 5,
++		.flow_level	= true,
++		.node_id	= 52,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 5,
++		.drr_node_id	= 24,
++	},
++	{
++		.port		= 5,
++		.flow_level	= false,
++		.node_id	= 208,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 52,
++		.drr_node_id	= 112,
++	},
++	{
++		.port		= 5,
++		.flow_level	= false,
++		.node_id	= 288,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 52,
++		.drr_node_id	= 112,
++	},
++	{
++		.port		= 6,
++		.flow_level	= true,
++		.node_id	= 56,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 6,
++		.drr_node_id	= 28,
++	},
++	{
++		.port		= 6,
++		.flow_level	= false,
++		.node_id	= 224,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 56,
++		.drr_node_id	= 128,
++	},
++	{
++		.port		= 6,
++		.flow_level	= false,
++		.node_id	= 292,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 56,
++		.drr_node_id	= 128,
++	},
++	{
++		.port		= 7,
++		.flow_level	= true,
++		.node_id	= 60,
++		.loop_num	= 2,
++		.pri_max	= 0,
++		.flow_id	= 7,
++		.drr_node_id	= 32,
++	},
++	{
++		.port		= 7,
++		.flow_level	= false,
++		.node_id	= 240,
++		.loop_num	= 16,
++		.pri_max	= 8,
++		.flow_id	= 60,
++		.drr_node_id	= 144,
++	},
++	{
++		.port		= 7,
++		.flow_level	= false,
++		.node_id	= 296,
++		.loop_num	= 4,
++		.pri_max	= 4,
++		.flow_id	= 60,
++		.drr_node_id	= 144,
++	},
++};
++
++/* Set the PPE queue level scheduler configuration. */
++static int ppe_scheduler_l0_queue_map_set(struct ppe_device *ppe_dev,
++					  int node_id, int port,
++					  struct ppe_scheduler_cfg scheduler_cfg)
++{
++	u32 val, reg;
++	int ret;
++
++	reg = PPE_L0_FLOW_MAP_TBL_ADDR + node_id * PPE_L0_FLOW_MAP_TBL_INC;
++	val = FIELD_PREP(PPE_L0_FLOW_MAP_TBL_FLOW_ID, scheduler_cfg.flow_id);
++	val |= FIELD_PREP(PPE_L0_FLOW_MAP_TBL_C_PRI, scheduler_cfg.pri);
++	val |= FIELD_PREP(PPE_L0_FLOW_MAP_TBL_E_PRI, scheduler_cfg.pri);
++	val |= FIELD_PREP(PPE_L0_FLOW_MAP_TBL_C_NODE_WT, scheduler_cfg.drr_node_wt);
++	val |= FIELD_PREP(PPE_L0_FLOW_MAP_TBL_E_NODE_WT, scheduler_cfg.drr_node_wt);
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	reg = PPE_L0_C_FLOW_CFG_TBL_ADDR +
++	      (scheduler_cfg.flow_id * PPE_QUEUE_SCH_PRI_NUM + scheduler_cfg.pri) *
++	      PPE_L0_C_FLOW_CFG_TBL_INC;
++	val = FIELD_PREP(PPE_L0_C_FLOW_CFG_TBL_NODE_ID, scheduler_cfg.drr_node_id);
++	val |= FIELD_PREP(PPE_L0_C_FLOW_CFG_TBL_NODE_CREDIT_UNIT, scheduler_cfg.unit_is_packet);
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	reg = PPE_L0_E_FLOW_CFG_TBL_ADDR +
++	      (scheduler_cfg.flow_id * PPE_QUEUE_SCH_PRI_NUM + scheduler_cfg.pri) *
++	      PPE_L0_E_FLOW_CFG_TBL_INC;
++	val = FIELD_PREP(PPE_L0_E_FLOW_CFG_TBL_NODE_ID, scheduler_cfg.drr_node_id);
++	val |= FIELD_PREP(PPE_L0_E_FLOW_CFG_TBL_NODE_CREDIT_UNIT, scheduler_cfg.unit_is_packet);
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	reg = PPE_L0_FLOW_PORT_MAP_TBL_ADDR + node_id * PPE_L0_FLOW_PORT_MAP_TBL_INC;
++	val = FIELD_PREP(PPE_L0_FLOW_PORT_MAP_TBL_PORT_NUM, port);
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	reg = PPE_L0_COMP_CFG_TBL_ADDR + node_id * PPE_L0_COMP_CFG_TBL_INC;
++	val = FIELD_PREP(PPE_L0_COMP_CFG_TBL_NODE_METER_LEN, scheduler_cfg.frame_mode);
++
++	return regmap_update_bits(ppe_dev->regmap, reg,
++				  PPE_L0_COMP_CFG_TBL_NODE_METER_LEN,
++				  val);
++}
++
++/* Set the PPE flow level scheduler configuration. */
++static int ppe_scheduler_l1_queue_map_set(struct ppe_device *ppe_dev,
++					  int node_id, int port,
++					  struct ppe_scheduler_cfg scheduler_cfg)
++{
++	u32 val, reg;
++	int ret;
++
++	val = FIELD_PREP(PPE_L1_FLOW_MAP_TBL_FLOW_ID, scheduler_cfg.flow_id);
++	val |= FIELD_PREP(PPE_L1_FLOW_MAP_TBL_C_PRI, scheduler_cfg.pri);
++	val |= FIELD_PREP(PPE_L1_FLOW_MAP_TBL_E_PRI, scheduler_cfg.pri);
++	val |= FIELD_PREP(PPE_L1_FLOW_MAP_TBL_C_NODE_WT, scheduler_cfg.drr_node_wt);
++	val |= FIELD_PREP(PPE_L1_FLOW_MAP_TBL_E_NODE_WT, scheduler_cfg.drr_node_wt);
++	reg = PPE_L1_FLOW_MAP_TBL_ADDR + node_id * PPE_L1_FLOW_MAP_TBL_INC;
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	val = FIELD_PREP(PPE_L1_C_FLOW_CFG_TBL_NODE_ID, scheduler_cfg.drr_node_id);
++	val |= FIELD_PREP(PPE_L1_C_FLOW_CFG_TBL_NODE_CREDIT_UNIT, scheduler_cfg.unit_is_packet);
++	reg = PPE_L1_C_FLOW_CFG_TBL_ADDR +
++	      (scheduler_cfg.flow_id * PPE_QUEUE_SCH_PRI_NUM + scheduler_cfg.pri) *
++	      PPE_L1_C_FLOW_CFG_TBL_INC;
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	val = FIELD_PREP(PPE_L1_E_FLOW_CFG_TBL_NODE_ID, scheduler_cfg.drr_node_id);
++	val |= FIELD_PREP(PPE_L1_E_FLOW_CFG_TBL_NODE_CREDIT_UNIT, scheduler_cfg.unit_is_packet);
++	reg = PPE_L1_E_FLOW_CFG_TBL_ADDR +
++		(scheduler_cfg.flow_id * PPE_QUEUE_SCH_PRI_NUM + scheduler_cfg.pri) *
++		PPE_L1_E_FLOW_CFG_TBL_INC;
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	val = FIELD_PREP(PPE_L1_FLOW_PORT_MAP_TBL_PORT_NUM, port);
++	reg = PPE_L1_FLOW_PORT_MAP_TBL_ADDR + node_id * PPE_L1_FLOW_PORT_MAP_TBL_INC;
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	reg = PPE_L1_COMP_CFG_TBL_ADDR + node_id * PPE_L1_COMP_CFG_TBL_INC;
++	val = FIELD_PREP(PPE_L1_COMP_CFG_TBL_NODE_METER_LEN, scheduler_cfg.frame_mode);
++
++	return regmap_update_bits(ppe_dev->regmap, reg, PPE_L1_COMP_CFG_TBL_NODE_METER_LEN, val);
++}
++
++/**
++ * ppe_queue_scheduler_set - Configure scheduler for PPE hardware queue
++ * @ppe_dev: PPE device
++ * @node_id: PPE queue ID or flow ID
++ * @flow_level: Flow level scheduler or queue level scheduler
++ * @port: PPE port ID set scheduler configuration
++ * @scheduler_cfg: PPE scheduler configuration
++ *
++ * PPE scheduler configuration supports queue level and flow level on
++ * the PPE egress port.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_queue_scheduler_set(struct ppe_device *ppe_dev,
++			    int node_id, bool flow_level, int port,
++			    struct ppe_scheduler_cfg scheduler_cfg)
++{
++	if (flow_level)
++		return ppe_scheduler_l1_queue_map_set(ppe_dev, node_id,
++						      port, scheduler_cfg);
++
++	return ppe_scheduler_l0_queue_map_set(ppe_dev, node_id,
++					      port, scheduler_cfg);
++}
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -358,6 +1013,133 @@ qm_config_fail:
+ 	return ret;
+ }
+ 
++static int ppe_node_scheduler_config(struct ppe_device *ppe_dev,
++				     const struct ppe_scheduler_port_config config)
++{
++	struct ppe_scheduler_cfg sch_cfg;
++	int ret, i;
++
++	for (i = 0; i < config.loop_num; i++) {
++		if (!config.pri_max) {
++			/* Round robin scheduler without priority. */
++			sch_cfg.flow_id = config.flow_id;
++			sch_cfg.pri = 0;
++			sch_cfg.drr_node_id = config.drr_node_id;
++		} else {
++			sch_cfg.flow_id = config.flow_id + (i / config.pri_max);
++			sch_cfg.pri = i % config.pri_max;
++			sch_cfg.drr_node_id = config.drr_node_id + i;
++		}
++
++		/* Scheduler weight, must be more than 0. */
++		sch_cfg.drr_node_wt = 1;
++		/* Byte based to be scheduled. */
++		sch_cfg.unit_is_packet = false;
++		/* Frame + CRC calculated. */
++		sch_cfg.frame_mode = PPE_SCH_WITH_FRAME_CRC;
++
++		ret = ppe_queue_scheduler_set(ppe_dev, config.node_id + i,
++					      config.flow_level,
++					      config.port,
++					      sch_cfg);
++		if (ret)
++			return ret;
++	}
++
++	return 0;
++}
++
++/* Initialize scheduler settings for PPE buffer utilization and dispatching
++ * packet on PPE queue.
++ */
++static int ppe_config_scheduler(struct ppe_device *ppe_dev)
++{
++	const struct ppe_scheduler_port_config *port_cfg;
++	const struct ppe_scheduler_qm_config *qm_cfg;
++	const struct ppe_scheduler_bm_config *bm_cfg;
++	int ret, i, count;
++	u32 val, reg;
++
++	count = ARRAY_SIZE(ipq9574_ppe_sch_bm_config);
++	bm_cfg = ipq9574_ppe_sch_bm_config;
++
++	/* Configure the depth of BM scheduler entries. */
++	val = FIELD_PREP(PPE_BM_SCH_CTRL_SCH_DEPTH, count);
++	val |= FIELD_PREP(PPE_BM_SCH_CTRL_SCH_OFFSET, 0);
++	val |= FIELD_PREP(PPE_BM_SCH_CTRL_SCH_EN, 1);
++
++	ret = regmap_write(ppe_dev->regmap, PPE_BM_SCH_CTRL_ADDR, val);
++	if (ret)
++		goto sch_config_fail;
++
++	/* Configure each BM scheduler entry with the valid ingress port and
++	 * egress port, the second port takes effect when the specified port
++	 * is in the inactive state.
++	 */
++	for (i = 0; i < count; i++) {
++		val = FIELD_PREP(PPE_BM_SCH_CFG_TBL_VALID, bm_cfg[i].valid);
++		val |= FIELD_PREP(PPE_BM_SCH_CFG_TBL_DIR, bm_cfg[i].is_egress);
++		val |= FIELD_PREP(PPE_BM_SCH_CFG_TBL_PORT_NUM, bm_cfg[i].port);
++		val |= FIELD_PREP(PPE_BM_SCH_CFG_TBL_SECOND_PORT_VALID, bm_cfg[i].second_valid);
++		val |= FIELD_PREP(PPE_BM_SCH_CFG_TBL_SECOND_PORT, bm_cfg[i].second_port);
++
++		reg = PPE_BM_SCH_CFG_TBL_ADDR + i * PPE_BM_SCH_CFG_TBL_INC;
++		ret = regmap_write(ppe_dev->regmap, reg, val);
++		if (ret)
++			goto sch_config_fail;
++	}
++
++	count = ARRAY_SIZE(ipq9574_ppe_sch_qm_config);
++	qm_cfg = ipq9574_ppe_sch_qm_config;
++
++	/* Configure the depth of QM scheduler entries. */
++	val = FIELD_PREP(PPE_PSCH_SCH_DEPTH_CFG_SCH_DEPTH, count);
++	ret = regmap_write(ppe_dev->regmap, PPE_PSCH_SCH_DEPTH_CFG_ADDR, val);
++	if (ret)
++		goto sch_config_fail;
++
++	/* Configure each QM scheduler entry with enqueue port and dequeue
++	 * port, the second port takes effect when the specified dequeue
++	 * port is in the inactive port.
++	 */
++	for (i = 0; i < count; i++) {
++		val = FIELD_PREP(PPE_PSCH_SCH_CFG_TBL_ENS_PORT_BITMAP,
++				 qm_cfg[i].ensch_port_bmp);
++		val |= FIELD_PREP(PPE_PSCH_SCH_CFG_TBL_ENS_PORT,
++				  qm_cfg[i].ensch_port);
++		val |= FIELD_PREP(PPE_PSCH_SCH_CFG_TBL_DES_PORT,
++				  qm_cfg[i].desch_port);
++		val |= FIELD_PREP(PPE_PSCH_SCH_CFG_TBL_DES_SECOND_PORT_EN,
++				  qm_cfg[i].desch_second_valid);
++		val |= FIELD_PREP(PPE_PSCH_SCH_CFG_TBL_DES_SECOND_PORT,
++				  qm_cfg[i].desch_second_port);
++
++		reg = PPE_PSCH_SCH_CFG_TBL_ADDR + i * PPE_PSCH_SCH_CFG_TBL_INC;
++		ret = regmap_write(ppe_dev->regmap, reg, val);
++		if (ret)
++			goto sch_config_fail;
++	}
++
++	count = ARRAY_SIZE(ppe_port_sch_config);
++	port_cfg = ppe_port_sch_config;
++
++	/* Configure scheduler per PPE queue or flow. */
++	for (i = 0; i < count; i++) {
++		if (port_cfg[i].port >= ppe_dev->num_ports)
++			break;
++
++		ret = ppe_node_scheduler_config(ppe_dev, port_cfg[i]);
++		if (ret)
++			goto sch_config_fail;
++	}
++
++	return 0;
++
++sch_config_fail:
++	dev_err(ppe_dev->dev, "PPE scheduler arbitration config error %d\n", ret);
++	return ret;
++};
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -366,5 +1148,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_config_qm(ppe_dev);
++	ret = ppe_config_qm(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_config_scheduler(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -8,5 +8,42 @@
+ 
+ #include "ppe.h"
+ 
++/**
++ * enum ppe_scheduler_frame_mode - PPE scheduler frame mode.
++ * @PPE_SCH_WITH_IPG_PREAMBLE_FRAME_CRC: The scheduled frame includes IPG,
++ * preamble, Ethernet packet and CRC.
++ * @PPE_SCH_WITH_FRAME_CRC: The scheduled frame includes Ethernet frame and CRC
++ * excluding IPG and preamble.
++ * @PPE_SCH_WITH_L3_PAYLOAD: The scheduled frame includes layer 3 packet data.
++ */
++enum ppe_scheduler_frame_mode {
++	PPE_SCH_WITH_IPG_PREAMBLE_FRAME_CRC = 0,
++	PPE_SCH_WITH_FRAME_CRC = 1,
++	PPE_SCH_WITH_L3_PAYLOAD = 2,
++};
++
++/**
++ * struct ppe_scheduler_cfg - PPE scheduler configuration.
++ * @flow_id: PPE flow ID.
++ * @pri: Scheduler priority.
++ * @drr_node_id: Node ID for scheduled traffic.
++ * @drr_node_wt: Weight for scheduled traffic.
++ * @unit_is_packet: Packet based or byte based unit for scheduled traffic.
++ * @frame_mode: Packet mode to be scheduled.
++ *
++ * PPE scheduler supports commit rate and exceed rate configurations.
++ */
++struct ppe_scheduler_cfg {
++	int flow_id;
++	int pri;
++	int drr_node_id;
++	int drr_node_wt;
++	bool unit_is_packet;
++	enum ppe_scheduler_frame_mode frame_mode;
++};
++
+ int ppe_hw_config(struct ppe_device *ppe_dev);
++int ppe_queue_scheduler_set(struct ppe_device *ppe_dev,
++			    int node_id, bool flow_level, int port,
++			    struct ppe_scheduler_cfg scheduler_cfg);
+ #endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -9,16 +9,113 @@
+ 
+ #include <linux/bitfield.h>
+ 
++/* PPE scheduler configurations for buffer manager block. */
++#define PPE_BM_SCH_CTRL_ADDR			0xb000
++#define PPE_BM_SCH_CTRL_INC			4
++#define PPE_BM_SCH_CTRL_SCH_DEPTH		GENMASK(7, 0)
++#define PPE_BM_SCH_CTRL_SCH_OFFSET		GENMASK(14, 8)
++#define PPE_BM_SCH_CTRL_SCH_EN			BIT(31)
++
++#define PPE_BM_SCH_CFG_TBL_ADDR			0xc000
++#define PPE_BM_SCH_CFG_TBL_ENTRIES		128
++#define PPE_BM_SCH_CFG_TBL_INC			0x10
++#define PPE_BM_SCH_CFG_TBL_PORT_NUM		GENMASK(3, 0)
++#define PPE_BM_SCH_CFG_TBL_DIR			BIT(4)
++#define PPE_BM_SCH_CFG_TBL_VALID		BIT(5)
++#define PPE_BM_SCH_CFG_TBL_SECOND_PORT_VALID	BIT(6)
++#define PPE_BM_SCH_CFG_TBL_SECOND_PORT		GENMASK(11, 8)
++
+ /* PPE queue counters enable/disable control. */
+ #define PPE_EG_BRIDGE_CONFIG_ADDR		0x20044
+ #define PPE_EG_BRIDGE_CONFIG_QUEUE_CNT_EN	BIT(2)
+ 
++/* Port scheduler global config. */
++#define PPE_PSCH_SCH_DEPTH_CFG_ADDR		0x400000
++#define PPE_PSCH_SCH_DEPTH_CFG_INC		4
++#define PPE_PSCH_SCH_DEPTH_CFG_SCH_DEPTH	GENMASK(7, 0)
++
++/* PPE queue level scheduler configurations. */
++#define PPE_L0_FLOW_MAP_TBL_ADDR		0x402000
++#define PPE_L0_FLOW_MAP_TBL_ENTRIES		300
++#define PPE_L0_FLOW_MAP_TBL_INC			0x10
++#define PPE_L0_FLOW_MAP_TBL_FLOW_ID		GENMASK(5, 0)
++#define PPE_L0_FLOW_MAP_TBL_C_PRI		GENMASK(8, 6)
++#define PPE_L0_FLOW_MAP_TBL_E_PRI		GENMASK(11, 9)
++#define PPE_L0_FLOW_MAP_TBL_C_NODE_WT		GENMASK(21, 12)
++#define PPE_L0_FLOW_MAP_TBL_E_NODE_WT		GENMASK(31, 22)
++
++#define PPE_L0_C_FLOW_CFG_TBL_ADDR		0x404000
++#define PPE_L0_C_FLOW_CFG_TBL_ENTRIES		512
++#define PPE_L0_C_FLOW_CFG_TBL_INC		0x10
++#define PPE_L0_C_FLOW_CFG_TBL_NODE_ID		GENMASK(7, 0)
++#define PPE_L0_C_FLOW_CFG_TBL_NODE_CREDIT_UNIT	BIT(8)
++
++#define PPE_L0_E_FLOW_CFG_TBL_ADDR		0x406000
++#define PPE_L0_E_FLOW_CFG_TBL_ENTRIES		512
++#define PPE_L0_E_FLOW_CFG_TBL_INC		0x10
++#define PPE_L0_E_FLOW_CFG_TBL_NODE_ID		GENMASK(7, 0)
++#define PPE_L0_E_FLOW_CFG_TBL_NODE_CREDIT_UNIT	BIT(8)
++
++#define PPE_L0_FLOW_PORT_MAP_TBL_ADDR		0x408000
++#define PPE_L0_FLOW_PORT_MAP_TBL_ENTRIES	300
++#define PPE_L0_FLOW_PORT_MAP_TBL_INC		0x10
++#define PPE_L0_FLOW_PORT_MAP_TBL_PORT_NUM	GENMASK(3, 0)
++
++#define PPE_L0_COMP_CFG_TBL_ADDR		0x428000
++#define PPE_L0_COMP_CFG_TBL_ENTRIES		300
++#define PPE_L0_COMP_CFG_TBL_INC			0x10
++#define PPE_L0_COMP_CFG_TBL_SHAPER_METER_LEN	GENMASK(1, 0)
++#define PPE_L0_COMP_CFG_TBL_NODE_METER_LEN	GENMASK(3, 2)
++
+ /* Table addresses for per-queue dequeue setting. */
+ #define PPE_DEQ_OPR_TBL_ADDR			0x430000
+ #define PPE_DEQ_OPR_TBL_ENTRIES			300
+ #define PPE_DEQ_OPR_TBL_INC			0x10
+ #define PPE_DEQ_OPR_TBL_DEQ_DISABLE		BIT(0)
+ 
++/* PPE flow level scheduler configurations. */
++#define PPE_L1_FLOW_MAP_TBL_ADDR		0x440000
++#define PPE_L1_FLOW_MAP_TBL_ENTRIES		64
++#define PPE_L1_FLOW_MAP_TBL_INC			0x10
++#define PPE_L1_FLOW_MAP_TBL_FLOW_ID		GENMASK(3, 0)
++#define PPE_L1_FLOW_MAP_TBL_C_PRI		GENMASK(6, 4)
++#define PPE_L1_FLOW_MAP_TBL_E_PRI		GENMASK(9, 7)
++#define PPE_L1_FLOW_MAP_TBL_C_NODE_WT		GENMASK(19, 10)
++#define PPE_L1_FLOW_MAP_TBL_E_NODE_WT		GENMASK(29, 20)
++
++#define PPE_L1_C_FLOW_CFG_TBL_ADDR		0x442000
++#define PPE_L1_C_FLOW_CFG_TBL_ENTRIES		64
++#define PPE_L1_C_FLOW_CFG_TBL_INC		0x10
++#define PPE_L1_C_FLOW_CFG_TBL_NODE_ID		GENMASK(5, 0)
++#define PPE_L1_C_FLOW_CFG_TBL_NODE_CREDIT_UNIT	BIT(6)
++
++#define PPE_L1_E_FLOW_CFG_TBL_ADDR		0x444000
++#define PPE_L1_E_FLOW_CFG_TBL_ENTRIES		64
++#define PPE_L1_E_FLOW_CFG_TBL_INC		0x10
++#define PPE_L1_E_FLOW_CFG_TBL_NODE_ID		GENMASK(5, 0)
++#define PPE_L1_E_FLOW_CFG_TBL_NODE_CREDIT_UNIT	BIT(6)
++
++#define PPE_L1_FLOW_PORT_MAP_TBL_ADDR		0x446000
++#define PPE_L1_FLOW_PORT_MAP_TBL_ENTRIES	64
++#define PPE_L1_FLOW_PORT_MAP_TBL_INC		0x10
++#define PPE_L1_FLOW_PORT_MAP_TBL_PORT_NUM	GENMASK(3, 0)
++
++#define PPE_L1_COMP_CFG_TBL_ADDR		0x46a000
++#define PPE_L1_COMP_CFG_TBL_ENTRIES		64
++#define PPE_L1_COMP_CFG_TBL_INC			0x10
++#define PPE_L1_COMP_CFG_TBL_SHAPER_METER_LEN	GENMASK(1, 0)
++#define PPE_L1_COMP_CFG_TBL_NODE_METER_LEN	GENMASK(3, 2)
++
++/* PPE port scheduler configurations for egress. */
++#define PPE_PSCH_SCH_CFG_TBL_ADDR		0x47a000
++#define PPE_PSCH_SCH_CFG_TBL_ENTRIES		128
++#define PPE_PSCH_SCH_CFG_TBL_INC		0x10
++#define PPE_PSCH_SCH_CFG_TBL_DES_PORT		GENMASK(3, 0)
++#define PPE_PSCH_SCH_CFG_TBL_ENS_PORT		GENMASK(7, 4)
++#define PPE_PSCH_SCH_CFG_TBL_ENS_PORT_BITMAP	GENMASK(15, 8)
++#define PPE_PSCH_SCH_CFG_TBL_DES_SECOND_PORT_EN	BIT(16)
++#define PPE_PSCH_SCH_CFG_TBL_DES_SECOND_PORT	GENMASK(20, 17)
++
+ /* There are 15 BM ports and 4 BM groups supported by PPE.
+  * BM port (0-7) is for EDMA port 0, BM port (8-13) is for
+  * PPE physical port 1-6 and BM port 14 is for EIP port.

target/linux/qualcommbe/patches-6.12/0329-net-ethernet-qualcomm-Initialize-PPE-queue-settings.patch

@@ -0,0 +1,522 @@
+From 63874f7c2e46f192e43e6214d66236372e36396c Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:41 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE queue settings
+
+Configure unicast and multicast hardware queues for the PPE
+ports to enable packet forwarding between the ports.
+
+Each PPE port is assigned with a range of queues. The queue ID
+selection for a packet is decided by the queue base and queue
+offset that is configured based on the internal priority and
+the RSS hash value of the packet.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 356 +++++++++++++++++-
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    |  63 ++++
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  21 ++
+ 3 files changed, 439 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -128,6 +128,34 @@ struct ppe_scheduler_port_config {
+ 	unsigned int drr_node_id;
+ };
+ 
++/**
++ * struct ppe_port_schedule_resource - PPE port scheduler resource.
++ * @ucastq_start: Unicast queue start ID.
++ * @ucastq_end: Unicast queue end ID.
++ * @mcastq_start: Multicast queue start ID.
++ * @mcastq_end: Multicast queue end ID.
++ * @flow_id_start: Flow start ID.
++ * @flow_id_end: Flow end ID.
++ * @l0node_start: Scheduler node start ID for queue level.
++ * @l0node_end: Scheduler node end ID for queue level.
++ * @l1node_start: Scheduler node start ID for flow level.
++ * @l1node_end: Scheduler node end ID for flow level.
++ *
++ * PPE scheduler resource allocated among the PPE ports.
++ */
++struct ppe_port_schedule_resource {
++	unsigned int ucastq_start;
++	unsigned int ucastq_end;
++	unsigned int mcastq_start;
++	unsigned int mcastq_end;
++	unsigned int flow_id_start;
++	unsigned int flow_id_end;
++	unsigned int l0node_start;
++	unsigned int l0node_end;
++	unsigned int l1node_start;
++	unsigned int l1node_end;
++};
++
+ /* Assign the share buffer number 1550 to group 0 by default. */
+ static const int ipq9574_ppe_bm_group_config = 1550;
+ 
+@@ -676,6 +704,111 @@ static const struct ppe_scheduler_port_c
+ 	},
+ };
+ 
++/* The scheduler resource is applied to each PPE port, The resource
++ * includes the unicast & multicast queues, flow nodes and DRR nodes.
++ */
++static const struct ppe_port_schedule_resource ppe_scheduler_res[] = {
++	{	.ucastq_start	= 0,
++		.ucastq_end	= 63,
++		.mcastq_start	= 256,
++		.mcastq_end	= 271,
++		.flow_id_start	= 0,
++		.flow_id_end	= 0,
++		.l0node_start	= 0,
++		.l0node_end	= 7,
++		.l1node_start	= 0,
++		.l1node_end	= 0,
++	},
++	{	.ucastq_start	= 144,
++		.ucastq_end	= 159,
++		.mcastq_start	= 272,
++		.mcastq_end	= 275,
++		.flow_id_start	= 36,
++		.flow_id_end	= 39,
++		.l0node_start	= 48,
++		.l0node_end	= 63,
++		.l1node_start	= 8,
++		.l1node_end	= 11,
++	},
++	{	.ucastq_start	= 160,
++		.ucastq_end	= 175,
++		.mcastq_start	= 276,
++		.mcastq_end	= 279,
++		.flow_id_start	= 40,
++		.flow_id_end	= 43,
++		.l0node_start	= 64,
++		.l0node_end	= 79,
++		.l1node_start	= 12,
++		.l1node_end	= 15,
++	},
++	{	.ucastq_start	= 176,
++		.ucastq_end	= 191,
++		.mcastq_start	= 280,
++		.mcastq_end	= 283,
++		.flow_id_start	= 44,
++		.flow_id_end	= 47,
++		.l0node_start	= 80,
++		.l0node_end	= 95,
++		.l1node_start	= 16,
++		.l1node_end	= 19,
++	},
++	{	.ucastq_start	= 192,
++		.ucastq_end	= 207,
++		.mcastq_start	= 284,
++		.mcastq_end	= 287,
++		.flow_id_start	= 48,
++		.flow_id_end	= 51,
++		.l0node_start	= 96,
++		.l0node_end	= 111,
++		.l1node_start	= 20,
++		.l1node_end	= 23,
++	},
++	{	.ucastq_start	= 208,
++		.ucastq_end	= 223,
++		.mcastq_start	= 288,
++		.mcastq_end	= 291,
++		.flow_id_start	= 52,
++		.flow_id_end	= 55,
++		.l0node_start	= 112,
++		.l0node_end	= 127,
++		.l1node_start	= 24,
++		.l1node_end	= 27,
++	},
++	{	.ucastq_start	= 224,
++		.ucastq_end	= 239,
++		.mcastq_start	= 292,
++		.mcastq_end	= 295,
++		.flow_id_start	= 56,
++		.flow_id_end	= 59,
++		.l0node_start	= 128,
++		.l0node_end	= 143,
++		.l1node_start	= 28,
++		.l1node_end	= 31,
++	},
++	{	.ucastq_start	= 240,
++		.ucastq_end	= 255,
++		.mcastq_start	= 296,
++		.mcastq_end	= 299,
++		.flow_id_start	= 60,
++		.flow_id_end	= 63,
++		.l0node_start	= 144,
++		.l0node_end	= 159,
++		.l1node_start	= 32,
++		.l1node_end	= 35,
++	},
++	{	.ucastq_start	= 64,
++		.ucastq_end	= 143,
++		.mcastq_start	= 0,
++		.mcastq_end	= 0,
++		.flow_id_start	= 1,
++		.flow_id_end	= 35,
++		.l0node_start	= 8,
++		.l0node_end	= 47,
++		.l1node_start	= 1,
++		.l1node_end	= 7,
++	},
++};
++
+ /* Set the PPE queue level scheduler configuration. */
+ static int ppe_scheduler_l0_queue_map_set(struct ppe_device *ppe_dev,
+ 					  int node_id, int port,
+@@ -807,6 +940,149 @@ int ppe_queue_scheduler_set(struct ppe_d
+ 					      port, scheduler_cfg);
+ }
+ 
++/**
++ * ppe_queue_ucast_base_set - Set PPE unicast queue base ID and profile ID
++ * @ppe_dev: PPE device
++ * @queue_dst: PPE queue destination configuration
++ * @queue_base: PPE queue base ID
++ * @profile_id: Profile ID
++ *
++ * The PPE unicast queue base ID and profile ID are configured based on the
++ * destination port information that can be service code or CPU code or the
++ * destination port.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_queue_ucast_base_set(struct ppe_device *ppe_dev,
++			     struct ppe_queue_ucast_dest queue_dst,
++			     int queue_base, int profile_id)
++{
++	int index, profile_size;
++	u32 val, reg;
++
++	profile_size = queue_dst.src_profile << 8;
++	if (queue_dst.service_code_en)
++		index = PPE_QUEUE_BASE_SERVICE_CODE + profile_size +
++			queue_dst.service_code;
++	else if (queue_dst.cpu_code_en)
++		index = PPE_QUEUE_BASE_CPU_CODE + profile_size +
++			queue_dst.cpu_code;
++	else
++		index = profile_size + queue_dst.dest_port;
++
++	val = FIELD_PREP(PPE_UCAST_QUEUE_MAP_TBL_PROFILE_ID, profile_id);
++	val |= FIELD_PREP(PPE_UCAST_QUEUE_MAP_TBL_QUEUE_ID, queue_base);
++	reg = PPE_UCAST_QUEUE_MAP_TBL_ADDR + index * PPE_UCAST_QUEUE_MAP_TBL_INC;
++
++	return regmap_write(ppe_dev->regmap, reg, val);
++}
++
++/**
++ * ppe_queue_ucast_offset_pri_set - Set PPE unicast queue offset based on priority
++ * @ppe_dev: PPE device
++ * @profile_id: Profile ID
++ * @priority: PPE internal priority to be used to set queue offset
++ * @queue_offset: Queue offset used for calculating the destination queue ID
++ *
++ * The PPE unicast queue offset is configured based on the PPE
++ * internal priority.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_queue_ucast_offset_pri_set(struct ppe_device *ppe_dev,
++				   int profile_id,
++				   int priority,
++				   int queue_offset)
++{
++	u32 val, reg;
++	int index;
++
++	index = (profile_id << 4) + priority;
++	val = FIELD_PREP(PPE_UCAST_PRIORITY_MAP_TBL_CLASS, queue_offset);
++	reg = PPE_UCAST_PRIORITY_MAP_TBL_ADDR + index * PPE_UCAST_PRIORITY_MAP_TBL_INC;
++
++	return regmap_write(ppe_dev->regmap, reg, val);
++}
++
++/**
++ * ppe_queue_ucast_offset_hash_set - Set PPE unicast queue offset based on hash
++ * @ppe_dev: PPE device
++ * @profile_id: Profile ID
++ * @rss_hash: Packet hash value to be used to set queue offset
++ * @queue_offset: Queue offset used for calculating the destination queue ID
++ *
++ * The PPE unicast queue offset is configured based on the RSS hash value.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_queue_ucast_offset_hash_set(struct ppe_device *ppe_dev,
++				    int profile_id,
++				    int rss_hash,
++				    int queue_offset)
++{
++	u32 val, reg;
++	int index;
++
++	index = (profile_id << 8) + rss_hash;
++	val = FIELD_PREP(PPE_UCAST_HASH_MAP_TBL_HASH, queue_offset);
++	reg = PPE_UCAST_HASH_MAP_TBL_ADDR + index * PPE_UCAST_HASH_MAP_TBL_INC;
++
++	return regmap_write(ppe_dev->regmap, reg, val);
++}
++
++/**
++ * ppe_port_resource_get - Get PPE resource per port
++ * @ppe_dev: PPE device
++ * @port: PPE port
++ * @type: Resource type
++ * @res_start: Resource start ID returned
++ * @res_end: Resource end ID returned
++ *
++ * PPE resource is assigned per PPE port, which is acquired for QoS scheduler.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_port_resource_get(struct ppe_device *ppe_dev, int port,
++			  enum ppe_resource_type type,
++			  int *res_start, int *res_end)
++{
++	struct ppe_port_schedule_resource res;
++
++	/* The reserved resource with the maximum port ID of PPE is
++	 * also allowed to be acquired.
++	 */
++	if (port > ppe_dev->num_ports)
++		return -EINVAL;
++
++	res = ppe_scheduler_res[port];
++	switch (type) {
++	case PPE_RES_UCAST:
++		*res_start = res.ucastq_start;
++		*res_end = res.ucastq_end;
++		break;
++	case PPE_RES_MCAST:
++		*res_start = res.mcastq_start;
++		*res_end = res.mcastq_end;
++		break;
++	case PPE_RES_FLOW_ID:
++		*res_start = res.flow_id_start;
++		*res_end = res.flow_id_end;
++		break;
++	case PPE_RES_L0_NODE:
++		*res_start = res.l0node_start;
++		*res_end = res.l0node_end;
++		break;
++	case PPE_RES_L1_NODE:
++		*res_start = res.l1node_start;
++		*res_end = res.l1node_end;
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	return 0;
++}
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -1140,6 +1416,80 @@ sch_config_fail:
+ 	return ret;
+ };
+ 
++/* Configure PPE queue destination of each PPE port. */
++static int ppe_queue_dest_init(struct ppe_device *ppe_dev)
++{
++	int ret, port_id, index, q_base, q_offset, res_start, res_end, pri_max;
++	struct ppe_queue_ucast_dest queue_dst;
++
++	for (port_id = 0; port_id < ppe_dev->num_ports; port_id++) {
++		memset(&queue_dst, 0, sizeof(queue_dst));
++
++		ret = ppe_port_resource_get(ppe_dev, port_id, PPE_RES_UCAST,
++					    &res_start, &res_end);
++		if (ret)
++			return ret;
++
++		q_base = res_start;
++		queue_dst.dest_port = port_id;
++
++		/* Configure queue base ID and profile ID that is same as
++		 * physical port ID.
++		 */
++		ret = ppe_queue_ucast_base_set(ppe_dev, queue_dst,
++					       q_base, port_id);
++		if (ret)
++			return ret;
++
++		/* Queue priority range supported by each PPE port */
++		ret = ppe_port_resource_get(ppe_dev, port_id, PPE_RES_L0_NODE,
++					    &res_start, &res_end);
++		if (ret)
++			return ret;
++
++		pri_max = res_end - res_start;
++
++		/* Redirect ARP reply packet with the max priority on CPU port,
++		 * which keeps the ARP reply directed to CPU (CPU code is 101)
++		 * with highest priority queue of EDMA.
++		 */
++		if (port_id == 0) {
++			memset(&queue_dst, 0, sizeof(queue_dst));
++
++			queue_dst.cpu_code_en = true;
++			queue_dst.cpu_code = 101;
++			ret = ppe_queue_ucast_base_set(ppe_dev, queue_dst,
++						       q_base + pri_max,
++						       0);
++			if (ret)
++				return ret;
++		}
++
++		/* Initialize the queue offset of internal priority. */
++		for (index = 0; index < PPE_QUEUE_INTER_PRI_NUM; index++) {
++			q_offset = index > pri_max ? pri_max : index;
++
++			ret = ppe_queue_ucast_offset_pri_set(ppe_dev, port_id,
++							     index, q_offset);
++			if (ret)
++				return ret;
++		}
++
++		/* Initialize the queue offset of RSS hash as 0 to avoid the
++		 * random hardware value that will lead to the unexpected
++		 * destination queue generated.
++		 */
++		for (index = 0; index < PPE_QUEUE_HASH_NUM; index++) {
++			ret = ppe_queue_ucast_offset_hash_set(ppe_dev, port_id,
++							      index, 0);
++			if (ret)
++				return ret;
++		}
++	}
++
++	return 0;
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -1152,5 +1502,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_config_scheduler(ppe_dev);
++	ret = ppe_config_scheduler(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_queue_dest_init(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -8,6 +8,16 @@
+ 
+ #include "ppe.h"
+ 
++/* There are different table index ranges for configuring queue base ID of
++ * the destination port, CPU code and service code.
++ */
++#define PPE_QUEUE_BASE_DEST_PORT		0
++#define PPE_QUEUE_BASE_CPU_CODE			1024
++#define PPE_QUEUE_BASE_SERVICE_CODE		2048
++
++#define PPE_QUEUE_INTER_PRI_NUM			16
++#define PPE_QUEUE_HASH_NUM			256
++
+ /**
+  * enum ppe_scheduler_frame_mode - PPE scheduler frame mode.
+  * @PPE_SCH_WITH_IPG_PREAMBLE_FRAME_CRC: The scheduled frame includes IPG,
+@@ -42,8 +52,61 @@ struct ppe_scheduler_cfg {
+ 	enum ppe_scheduler_frame_mode frame_mode;
+ };
+ 
++/**
++ * enum ppe_resource_type - PPE resource type.
++ * @PPE_RES_UCAST: Unicast queue resource.
++ * @PPE_RES_MCAST: Multicast queue resource.
++ * @PPE_RES_L0_NODE: Level 0 for queue based node resource.
++ * @PPE_RES_L1_NODE: Level 1 for flow based node resource.
++ * @PPE_RES_FLOW_ID: Flow based node resource.
++ */
++enum ppe_resource_type {
++	PPE_RES_UCAST,
++	PPE_RES_MCAST,
++	PPE_RES_L0_NODE,
++	PPE_RES_L1_NODE,
++	PPE_RES_FLOW_ID,
++};
++
++/**
++ * struct ppe_queue_ucast_dest - PPE unicast queue destination.
++ * @src_profile: Source profile.
++ * @service_code_en: Enable service code to map the queue base ID.
++ * @service_code: Service code.
++ * @cpu_code_en: Enable CPU code to map the queue base ID.
++ * @cpu_code: CPU code.
++ * @dest_port: destination port.
++ *
++ * PPE egress queue ID is decided by the service code if enabled, otherwise
++ * by the CPU code if enabled, or by destination port if both service code
++ * and CPU code are disabled.
++ */
++struct ppe_queue_ucast_dest {
++	int src_profile;
++	bool service_code_en;
++	int service_code;
++	bool cpu_code_en;
++	int cpu_code;
++	int dest_port;
++};
++
+ int ppe_hw_config(struct ppe_device *ppe_dev);
+ int ppe_queue_scheduler_set(struct ppe_device *ppe_dev,
+ 			    int node_id, bool flow_level, int port,
+ 			    struct ppe_scheduler_cfg scheduler_cfg);
++int ppe_queue_ucast_base_set(struct ppe_device *ppe_dev,
++			     struct ppe_queue_ucast_dest queue_dst,
++			     int queue_base,
++			     int profile_id);
++int ppe_queue_ucast_offset_pri_set(struct ppe_device *ppe_dev,
++				   int profile_id,
++				   int priority,
++				   int queue_offset);
++int ppe_queue_ucast_offset_hash_set(struct ppe_device *ppe_dev,
++				    int profile_id,
++				    int rss_hash,
++				    int queue_offset);
++int ppe_port_resource_get(struct ppe_device *ppe_dev, int port,
++			  enum ppe_resource_type type,
++			  int *res_start, int *res_end);
+ #endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -164,6 +164,27 @@
+ #define PPE_BM_PORT_FC_SET_PRE_ALLOC(tbl_cfg, value)	\
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_BM_PORT_FC_W1_PRE_ALLOC)
+ 
++/* The queue base configurations based on destination port,
++ * service code or CPU code.
++ */
++#define PPE_UCAST_QUEUE_MAP_TBL_ADDR		0x810000
++#define PPE_UCAST_QUEUE_MAP_TBL_ENTRIES		3072
++#define PPE_UCAST_QUEUE_MAP_TBL_INC		0x10
++#define PPE_UCAST_QUEUE_MAP_TBL_PROFILE_ID	GENMASK(3, 0)
++#define PPE_UCAST_QUEUE_MAP_TBL_QUEUE_ID	GENMASK(11, 4)
++
++/* The queue offset configurations based on RSS hash value. */
++#define PPE_UCAST_HASH_MAP_TBL_ADDR		0x830000
++#define PPE_UCAST_HASH_MAP_TBL_ENTRIES		4096
++#define PPE_UCAST_HASH_MAP_TBL_INC		0x10
++#define PPE_UCAST_HASH_MAP_TBL_HASH		GENMASK(7, 0)
++
++/* The queue offset configurations based on PPE internal priority. */
++#define PPE_UCAST_PRIORITY_MAP_TBL_ADDR		0x842000
++#define PPE_UCAST_PRIORITY_MAP_TBL_ENTRIES	256
++#define PPE_UCAST_PRIORITY_MAP_TBL_INC		0x10
++#define PPE_UCAST_PRIORITY_MAP_TBL_CLASS	GENMASK(3, 0)
++
+ /* PPE unicast queue (0-255) configurations. */
+ #define PPE_AC_UNICAST_QUEUE_CFG_TBL_ADDR	0x848000
+ #define PPE_AC_UNICAST_QUEUE_CFG_TBL_ENTRIES	256

target/linux/qualcommbe/patches-6.12/0330-net-ethernet-qualcomm-Initialize-PPE-service-code-se.patch

@@ -0,0 +1,384 @@
+From 4147ce0d95816bded5c5e6cb276b1aa9f2620045 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:42 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE service code settings
+
+PPE service code is a special code (0-255) that is defined by PPE for
+PPE's packet processing stages, as per the network functions required
+for the packet.
+
+For packet being sent out by ARM cores on Ethernet ports, The service
+code 1 is used as the default service code. This service code is used
+to bypass most of packet processing stages of the PPE before the packet
+transmitted out PPE port, since the software network stack has already
+processed the packet.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    |  95 +++++++++++-
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    | 145 ++++++++++++++++++
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  53 +++++++
+ 3 files changed, 292 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -8,6 +8,7 @@
+  */
+ 
+ #include <linux/bitfield.h>
++#include <linux/bitmap.h>
+ #include <linux/bits.h>
+ #include <linux/device.h>
+ #include <linux/regmap.h>
+@@ -1083,6 +1084,75 @@ int ppe_port_resource_get(struct ppe_dev
+ 	return 0;
+ }
+ 
++/**
++ * ppe_sc_config_set - Set PPE service code configuration
++ * @ppe_dev: PPE device
++ * @sc: Service ID, 0-255 supported by PPE
++ * @cfg: Service code configuration
++ *
++ * PPE service code is used by the PPE during its packet processing stages,
++ * to perform or bypass certain selected packet operations on the packet.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_sc_config_set(struct ppe_device *ppe_dev, int sc, struct ppe_sc_cfg cfg)
++{
++	u32 val, reg, servcode_val[2] = {};
++	unsigned long bitmap_value;
++	int ret;
++
++	val = FIELD_PREP(PPE_IN_L2_SERVICE_TBL_DST_PORT_ID_VALID, cfg.dest_port_valid);
++	val |= FIELD_PREP(PPE_IN_L2_SERVICE_TBL_DST_PORT_ID, cfg.dest_port);
++	val |= FIELD_PREP(PPE_IN_L2_SERVICE_TBL_DST_DIRECTION, cfg.is_src);
++
++	bitmap_value = bitmap_read(cfg.bitmaps.egress, 0, PPE_SC_BYPASS_EGRESS_SIZE);
++	val |= FIELD_PREP(PPE_IN_L2_SERVICE_TBL_DST_BYPASS_BITMAP, bitmap_value);
++	val |= FIELD_PREP(PPE_IN_L2_SERVICE_TBL_RX_CNT_EN,
++			  test_bit(PPE_SC_BYPASS_COUNTER_RX, cfg.bitmaps.counter));
++	val |= FIELD_PREP(PPE_IN_L2_SERVICE_TBL_TX_CNT_EN,
++			  test_bit(PPE_SC_BYPASS_COUNTER_TX, cfg.bitmaps.counter));
++	reg = PPE_IN_L2_SERVICE_TBL_ADDR + PPE_IN_L2_SERVICE_TBL_INC * sc;
++
++	ret = regmap_write(ppe_dev->regmap, reg, val);
++	if (ret)
++		return ret;
++
++	bitmap_value = bitmap_read(cfg.bitmaps.ingress, 0, PPE_SC_BYPASS_INGRESS_SIZE);
++	PPE_SERVICE_SET_BYPASS_BITMAP(servcode_val, bitmap_value);
++	PPE_SERVICE_SET_RX_CNT_EN(servcode_val,
++				  test_bit(PPE_SC_BYPASS_COUNTER_RX_VLAN, cfg.bitmaps.counter));
++	reg = PPE_SERVICE_TBL_ADDR + PPE_SERVICE_TBL_INC * sc;
++
++	ret = regmap_bulk_write(ppe_dev->regmap, reg,
++				servcode_val, ARRAY_SIZE(servcode_val));
++	if (ret)
++		return ret;
++
++	reg = PPE_EG_SERVICE_TBL_ADDR + PPE_EG_SERVICE_TBL_INC * sc;
++	ret = regmap_bulk_read(ppe_dev->regmap, reg,
++			       servcode_val, ARRAY_SIZE(servcode_val));
++	if (ret)
++		return ret;
++
++	PPE_EG_SERVICE_SET_NEXT_SERVCODE(servcode_val, cfg.next_service_code);
++	PPE_EG_SERVICE_SET_UPDATE_ACTION(servcode_val, cfg.eip_field_update_bitmap);
++	PPE_EG_SERVICE_SET_HW_SERVICE(servcode_val, cfg.eip_hw_service);
++	PPE_EG_SERVICE_SET_OFFSET_SEL(servcode_val, cfg.eip_offset_sel);
++	PPE_EG_SERVICE_SET_TX_CNT_EN(servcode_val,
++				     test_bit(PPE_SC_BYPASS_COUNTER_TX_VLAN, cfg.bitmaps.counter));
++
++	ret = regmap_bulk_write(ppe_dev->regmap, reg,
++				servcode_val, ARRAY_SIZE(servcode_val));
++	if (ret)
++		return ret;
++
++	bitmap_value = bitmap_read(cfg.bitmaps.tunnel, 0, PPE_SC_BYPASS_TUNNEL_SIZE);
++	val = FIELD_PREP(PPE_TL_SERVICE_TBL_BYPASS_BITMAP, bitmap_value);
++	reg = PPE_TL_SERVICE_TBL_ADDR + PPE_TL_SERVICE_TBL_INC * sc;
++
++	return regmap_write(ppe_dev->regmap, reg, val);
++}
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -1490,6 +1560,25 @@ static int ppe_queue_dest_init(struct pp
+ 	return 0;
+ }
+ 
++/* Initialize the service code 1 used by CPU port. */
++static int ppe_servcode_init(struct ppe_device *ppe_dev)
++{
++	struct ppe_sc_cfg sc_cfg = {};
++
++	bitmap_zero(sc_cfg.bitmaps.counter, PPE_SC_BYPASS_COUNTER_SIZE);
++	bitmap_zero(sc_cfg.bitmaps.tunnel, PPE_SC_BYPASS_TUNNEL_SIZE);
++
++	bitmap_fill(sc_cfg.bitmaps.ingress, PPE_SC_BYPASS_INGRESS_SIZE);
++	clear_bit(PPE_SC_BYPASS_INGRESS_FAKE_MAC_HEADER, sc_cfg.bitmaps.ingress);
++	clear_bit(PPE_SC_BYPASS_INGRESS_SERVICE_CODE, sc_cfg.bitmaps.ingress);
++	clear_bit(PPE_SC_BYPASS_INGRESS_FAKE_L2_PROTO, sc_cfg.bitmaps.ingress);
++
++	bitmap_fill(sc_cfg.bitmaps.egress, PPE_SC_BYPASS_EGRESS_SIZE);
++	clear_bit(PPE_SC_BYPASS_EGRESS_ACL_POST_ROUTING_CHECK, sc_cfg.bitmaps.egress);
++
++	return ppe_sc_config_set(ppe_dev, PPE_EDMA_SC_BYPASS_ID, sc_cfg);
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -1506,5 +1595,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_queue_dest_init(ppe_dev);
++	ret = ppe_queue_dest_init(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_servcode_init(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -6,6 +6,8 @@
+ #ifndef __PPE_CONFIG_H__
+ #define __PPE_CONFIG_H__
+ 
++#include <linux/types.h>
++
+ #include "ppe.h"
+ 
+ /* There are different table index ranges for configuring queue base ID of
+@@ -18,6 +20,9 @@
+ #define PPE_QUEUE_INTER_PRI_NUM			16
+ #define PPE_QUEUE_HASH_NUM			256
+ 
++/* The service code is used by EDMA port to transmit packet to PPE. */
++#define PPE_EDMA_SC_BYPASS_ID			1
++
+ /**
+  * enum ppe_scheduler_frame_mode - PPE scheduler frame mode.
+  * @PPE_SCH_WITH_IPG_PREAMBLE_FRAME_CRC: The scheduled frame includes IPG,
+@@ -90,6 +95,144 @@ struct ppe_queue_ucast_dest {
+ 	int dest_port;
+ };
+ 
++/* Hardware bitmaps for bypassing features of the ingress packet. */
++enum ppe_sc_ingress_type {
++	PPE_SC_BYPASS_INGRESS_VLAN_TAG_FMT_CHECK = 0,
++	PPE_SC_BYPASS_INGRESS_VLAN_MEMBER_CHECK = 1,
++	PPE_SC_BYPASS_INGRESS_VLAN_TRANSLATE = 2,
++	PPE_SC_BYPASS_INGRESS_MY_MAC_CHECK = 3,
++	PPE_SC_BYPASS_INGRESS_DIP_LOOKUP = 4,
++	PPE_SC_BYPASS_INGRESS_FLOW_LOOKUP = 5,
++	PPE_SC_BYPASS_INGRESS_FLOW_ACTION = 6,
++	PPE_SC_BYPASS_INGRESS_ACL = 7,
++	PPE_SC_BYPASS_INGRESS_FAKE_MAC_HEADER = 8,
++	PPE_SC_BYPASS_INGRESS_SERVICE_CODE = 9,
++	PPE_SC_BYPASS_INGRESS_WRONG_PKT_FMT_L2 = 10,
++	PPE_SC_BYPASS_INGRESS_WRONG_PKT_FMT_L3_IPV4 = 11,
++	PPE_SC_BYPASS_INGRESS_WRONG_PKT_FMT_L3_IPV6 = 12,
++	PPE_SC_BYPASS_INGRESS_WRONG_PKT_FMT_L4 = 13,
++	PPE_SC_BYPASS_INGRESS_FLOW_SERVICE_CODE = 14,
++	PPE_SC_BYPASS_INGRESS_ACL_SERVICE_CODE = 15,
++	PPE_SC_BYPASS_INGRESS_FAKE_L2_PROTO = 16,
++	PPE_SC_BYPASS_INGRESS_PPPOE_TERMINATION = 17,
++	PPE_SC_BYPASS_INGRESS_DEFAULT_VLAN = 18,
++	PPE_SC_BYPASS_INGRESS_DEFAULT_PCP = 19,
++	PPE_SC_BYPASS_INGRESS_VSI_ASSIGN = 20,
++	/* Values 21-23 are not specified by hardware. */
++	PPE_SC_BYPASS_INGRESS_VLAN_ASSIGN_FAIL = 24,
++	PPE_SC_BYPASS_INGRESS_SOURCE_GUARD = 25,
++	PPE_SC_BYPASS_INGRESS_MRU_MTU_CHECK = 26,
++	PPE_SC_BYPASS_INGRESS_FLOW_SRC_CHECK = 27,
++	PPE_SC_BYPASS_INGRESS_FLOW_QOS = 28,
++	/* This must be last as it determines the size of the BITMAP. */
++	PPE_SC_BYPASS_INGRESS_SIZE,
++};
++
++/* Hardware bitmaps for bypassing features of the egress packet. */
++enum ppe_sc_egress_type {
++	PPE_SC_BYPASS_EGRESS_VLAN_MEMBER_CHECK = 0,
++	PPE_SC_BYPASS_EGRESS_VLAN_TRANSLATE = 1,
++	PPE_SC_BYPASS_EGRESS_VLAN_TAG_FMT_CTRL = 2,
++	PPE_SC_BYPASS_EGRESS_FDB_LEARN = 3,
++	PPE_SC_BYPASS_EGRESS_FDB_REFRESH = 4,
++	PPE_SC_BYPASS_EGRESS_L2_SOURCE_SECURITY = 5,
++	PPE_SC_BYPASS_EGRESS_MANAGEMENT_FWD = 6,
++	PPE_SC_BYPASS_EGRESS_BRIDGING_FWD = 7,
++	PPE_SC_BYPASS_EGRESS_IN_STP_FLTR = 8,
++	PPE_SC_BYPASS_EGRESS_EG_STP_FLTR = 9,
++	PPE_SC_BYPASS_EGRESS_SOURCE_FLTR = 10,
++	PPE_SC_BYPASS_EGRESS_POLICER = 11,
++	PPE_SC_BYPASS_EGRESS_L2_PKT_EDIT = 12,
++	PPE_SC_BYPASS_EGRESS_L3_PKT_EDIT = 13,
++	PPE_SC_BYPASS_EGRESS_ACL_POST_ROUTING_CHECK = 14,
++	PPE_SC_BYPASS_EGRESS_PORT_ISOLATION = 15,
++	PPE_SC_BYPASS_EGRESS_PRE_ACL_QOS = 16,
++	PPE_SC_BYPASS_EGRESS_POST_ACL_QOS = 17,
++	PPE_SC_BYPASS_EGRESS_DSCP_QOS = 18,
++	PPE_SC_BYPASS_EGRESS_PCP_QOS = 19,
++	PPE_SC_BYPASS_EGRESS_PREHEADER_QOS = 20,
++	PPE_SC_BYPASS_EGRESS_FAKE_MAC_DROP = 21,
++	PPE_SC_BYPASS_EGRESS_TUNL_CONTEXT = 22,
++	PPE_SC_BYPASS_EGRESS_FLOW_POLICER = 23,
++	/* This must be last as it determines the size of the BITMAP. */
++	PPE_SC_BYPASS_EGRESS_SIZE,
++};
++
++/* Hardware bitmaps for bypassing counter of packet. */
++enum ppe_sc_counter_type {
++	PPE_SC_BYPASS_COUNTER_RX_VLAN = 0,
++	PPE_SC_BYPASS_COUNTER_RX = 1,
++	PPE_SC_BYPASS_COUNTER_TX_VLAN = 2,
++	PPE_SC_BYPASS_COUNTER_TX = 3,
++	/* This must be last as it determines the size of the BITMAP. */
++	PPE_SC_BYPASS_COUNTER_SIZE,
++};
++
++/* Hardware bitmaps for bypassing features of tunnel packet. */
++enum ppe_sc_tunnel_type {
++	PPE_SC_BYPASS_TUNNEL_SERVICE_CODE = 0,
++	PPE_SC_BYPASS_TUNNEL_TUNNEL_HANDLE = 1,
++	PPE_SC_BYPASS_TUNNEL_L3_IF_CHECK = 2,
++	PPE_SC_BYPASS_TUNNEL_VLAN_CHECK = 3,
++	PPE_SC_BYPASS_TUNNEL_DMAC_CHECK = 4,
++	PPE_SC_BYPASS_TUNNEL_UDP_CSUM_0_CHECK = 5,
++	PPE_SC_BYPASS_TUNNEL_TBL_DE_ACCE_CHECK = 6,
++	PPE_SC_BYPASS_TUNNEL_PPPOE_MC_TERM_CHECK = 7,
++	PPE_SC_BYPASS_TUNNEL_TTL_EXCEED_CHECK = 8,
++	PPE_SC_BYPASS_TUNNEL_MAP_SRC_CHECK = 9,
++	PPE_SC_BYPASS_TUNNEL_MAP_DST_CHECK = 10,
++	PPE_SC_BYPASS_TUNNEL_LPM_DST_LOOKUP = 11,
++	PPE_SC_BYPASS_TUNNEL_LPM_LOOKUP = 12,
++	PPE_SC_BYPASS_TUNNEL_WRONG_PKT_FMT_L2 = 13,
++	PPE_SC_BYPASS_TUNNEL_WRONG_PKT_FMT_L3_IPV4 = 14,
++	PPE_SC_BYPASS_TUNNEL_WRONG_PKT_FMT_L3_IPV6 = 15,
++	PPE_SC_BYPASS_TUNNEL_WRONG_PKT_FMT_L4 = 16,
++	PPE_SC_BYPASS_TUNNEL_WRONG_PKT_FMT_TUNNEL = 17,
++	/* Values 18-19 are not specified by hardware. */
++	PPE_SC_BYPASS_TUNNEL_PRE_IPO = 20,
++	/* This must be last as it determines the size of the BITMAP. */
++	PPE_SC_BYPASS_TUNNEL_SIZE,
++};
++
++/**
++ * struct ppe_sc_bypass - PPE service bypass bitmaps
++ * @ingress: Bitmap of features that can be bypassed on the ingress packet.
++ * @egress: Bitmap of features that can be bypassed on the egress packet.
++ * @counter: Bitmap of features that can be bypassed on the counter type.
++ * @tunnel: Bitmap of features that can be bypassed on the tunnel packet.
++ */
++struct ppe_sc_bypass {
++	DECLARE_BITMAP(ingress, PPE_SC_BYPASS_INGRESS_SIZE);
++	DECLARE_BITMAP(egress, PPE_SC_BYPASS_EGRESS_SIZE);
++	DECLARE_BITMAP(counter, PPE_SC_BYPASS_COUNTER_SIZE);
++	DECLARE_BITMAP(tunnel, PPE_SC_BYPASS_TUNNEL_SIZE);
++};
++
++/**
++ * struct ppe_sc_cfg - PPE service code configuration.
++ * @dest_port_valid: Generate destination port or not.
++ * @dest_port: Destination port ID.
++ * @bitmaps: Bitmap of bypass features.
++ * @is_src: Destination port acts as source port, packet sent to CPU.
++ * @next_service_code: New service code generated.
++ * @eip_field_update_bitmap: Fields updated as actions taken for EIP.
++ * @eip_hw_service: Selected hardware functions for EIP.
++ * @eip_offset_sel: Packet offset selection, using packet's layer 4 offset
++ * or using packet's layer 3 offset for EIP.
++ *
++ * Service code is generated during the packet passing through PPE.
++ */
++struct ppe_sc_cfg {
++	bool dest_port_valid;
++	int dest_port;
++	struct ppe_sc_bypass bitmaps;
++	bool is_src;
++	int next_service_code;
++	int eip_field_update_bitmap;
++	int eip_hw_service;
++	int eip_offset_sel;
++};
++
+ int ppe_hw_config(struct ppe_device *ppe_dev);
+ int ppe_queue_scheduler_set(struct ppe_device *ppe_dev,
+ 			    int node_id, bool flow_level, int port,
+@@ -109,4 +252,6 @@ int ppe_queue_ucast_offset_hash_set(stru
+ int ppe_port_resource_get(struct ppe_device *ppe_dev, int port,
+ 			  enum ppe_resource_type type,
+ 			  int *res_start, int *res_end);
++int ppe_sc_config_set(struct ppe_device *ppe_dev, int sc,
++		      struct ppe_sc_cfg cfg);
+ #endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -25,10 +25,63 @@
+ #define PPE_BM_SCH_CFG_TBL_SECOND_PORT_VALID	BIT(6)
+ #define PPE_BM_SCH_CFG_TBL_SECOND_PORT		GENMASK(11, 8)
+ 
++/* PPE service code configuration for the ingress direction functions,
++ * including bypass configuration for relevant PPE switch core functions
++ * such as flow entry lookup bypass.
++ */
++#define PPE_SERVICE_TBL_ADDR			0x15000
++#define PPE_SERVICE_TBL_ENTRIES			256
++#define PPE_SERVICE_TBL_INC			0x10
++#define PPE_SERVICE_W0_BYPASS_BITMAP		GENMASK(31, 0)
++#define PPE_SERVICE_W1_RX_CNT_EN		BIT(0)
++
++#define PPE_SERVICE_SET_BYPASS_BITMAP(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_SERVICE_W0_BYPASS_BITMAP)
++#define PPE_SERVICE_SET_RX_CNT_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_SERVICE_W1_RX_CNT_EN)
++
+ /* PPE queue counters enable/disable control. */
+ #define PPE_EG_BRIDGE_CONFIG_ADDR		0x20044
+ #define PPE_EG_BRIDGE_CONFIG_QUEUE_CNT_EN	BIT(2)
+ 
++/* PPE service code configuration on the egress direction. */
++#define PPE_EG_SERVICE_TBL_ADDR			0x43000
++#define PPE_EG_SERVICE_TBL_ENTRIES		256
++#define PPE_EG_SERVICE_TBL_INC			0x10
++#define PPE_EG_SERVICE_W0_UPDATE_ACTION		GENMASK(31, 0)
++#define PPE_EG_SERVICE_W1_NEXT_SERVCODE		GENMASK(7, 0)
++#define PPE_EG_SERVICE_W1_HW_SERVICE		GENMASK(13, 8)
++#define PPE_EG_SERVICE_W1_OFFSET_SEL		BIT(14)
++#define PPE_EG_SERVICE_W1_TX_CNT_EN		BIT(15)
++
++#define PPE_EG_SERVICE_SET_UPDATE_ACTION(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_EG_SERVICE_W0_UPDATE_ACTION)
++#define PPE_EG_SERVICE_SET_NEXT_SERVCODE(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_EG_SERVICE_W1_NEXT_SERVCODE)
++#define PPE_EG_SERVICE_SET_HW_SERVICE(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_EG_SERVICE_W1_HW_SERVICE)
++#define PPE_EG_SERVICE_SET_OFFSET_SEL(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_EG_SERVICE_W1_OFFSET_SEL)
++#define PPE_EG_SERVICE_SET_TX_CNT_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_EG_SERVICE_W1_TX_CNT_EN)
++
++/* PPE service code configuration for destination port and counter. */
++#define PPE_IN_L2_SERVICE_TBL_ADDR		0x66000
++#define PPE_IN_L2_SERVICE_TBL_ENTRIES		256
++#define PPE_IN_L2_SERVICE_TBL_INC		0x10
++#define PPE_IN_L2_SERVICE_TBL_DST_PORT_ID_VALID	BIT(0)
++#define PPE_IN_L2_SERVICE_TBL_DST_PORT_ID	GENMASK(4, 1)
++#define PPE_IN_L2_SERVICE_TBL_DST_DIRECTION	BIT(5)
++#define PPE_IN_L2_SERVICE_TBL_DST_BYPASS_BITMAP	GENMASK(29, 6)
++#define PPE_IN_L2_SERVICE_TBL_RX_CNT_EN		BIT(30)
++#define PPE_IN_L2_SERVICE_TBL_TX_CNT_EN		BIT(31)
++
++/* PPE service code configuration for the tunnel packet. */
++#define PPE_TL_SERVICE_TBL_ADDR			0x306000
++#define PPE_TL_SERVICE_TBL_ENTRIES		256
++#define PPE_TL_SERVICE_TBL_INC			4
++#define PPE_TL_SERVICE_TBL_BYPASS_BITMAP	GENMASK(31, 0)
++
+ /* Port scheduler global config. */
+ #define PPE_PSCH_SCH_DEPTH_CFG_ADDR		0x400000
+ #define PPE_PSCH_SCH_DEPTH_CFG_INC		4

target/linux/qualcommbe/patches-6.12/0331-net-ethernet-qualcomm-Initialize-PPE-port-control-se.patch

@@ -0,0 +1,215 @@
+From 63af46200da794acda25cf8083bde0c1576b0859 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:43 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE port control settings
+
+1. Enable port specific counters in PPE.
+2. Configure the default action as drop when the packet size
+   is more than the configured MTU of physical port.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 86 ++++++++++++++++++-
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    | 15 ++++
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  | 47 ++++++++++
+ 3 files changed, 147 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -1153,6 +1153,44 @@ int ppe_sc_config_set(struct ppe_device
+ 	return regmap_write(ppe_dev->regmap, reg, val);
+ }
+ 
++/**
++ * ppe_counter_enable_set - Set PPE port counter enabled
++ * @ppe_dev: PPE device
++ * @port: PPE port ID
++ *
++ * Enable PPE counters on the given port for the unicast packet, multicast
++ * packet and VLAN packet received and transmitted by PPE.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_counter_enable_set(struct ppe_device *ppe_dev, int port)
++{
++	u32 reg, mru_mtu_val[3];
++	int ret;
++
++	reg = PPE_MRU_MTU_CTRL_TBL_ADDR + PPE_MRU_MTU_CTRL_TBL_INC * port;
++	ret = regmap_bulk_read(ppe_dev->regmap, reg,
++			       mru_mtu_val, ARRAY_SIZE(mru_mtu_val));
++	if (ret)
++		return ret;
++
++	PPE_MRU_MTU_CTRL_SET_RX_CNT_EN(mru_mtu_val, true);
++	PPE_MRU_MTU_CTRL_SET_TX_CNT_EN(mru_mtu_val, true);
++	ret = regmap_bulk_write(ppe_dev->regmap, reg,
++				mru_mtu_val, ARRAY_SIZE(mru_mtu_val));
++	if (ret)
++		return ret;
++
++	reg = PPE_MC_MTU_CTRL_TBL_ADDR + PPE_MC_MTU_CTRL_TBL_INC * port;
++	ret = regmap_set_bits(ppe_dev->regmap, reg, PPE_MC_MTU_CTRL_TBL_TX_CNT_EN);
++	if (ret)
++		return ret;
++
++	reg = PPE_PORT_EG_VLAN_TBL_ADDR + PPE_PORT_EG_VLAN_TBL_INC * port;
++
++	return regmap_set_bits(ppe_dev->regmap, reg, PPE_PORT_EG_VLAN_TBL_TX_COUNTING_EN);
++}
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -1579,6 +1617,48 @@ static int ppe_servcode_init(struct ppe_
+ 	return ppe_sc_config_set(ppe_dev, PPE_EDMA_SC_BYPASS_ID, sc_cfg);
+ }
+ 
++/* Initialize PPE port configurations. */
++static int ppe_port_config_init(struct ppe_device *ppe_dev)
++{
++	u32 reg, val, mru_mtu_val[3];
++	int i, ret;
++
++	/* MTU and MRU settings are not required for CPU port 0. */
++	for (i = 1; i < ppe_dev->num_ports; i++) {
++		/* Enable Ethernet port counter */
++		ret = ppe_counter_enable_set(ppe_dev, i);
++		if (ret)
++			return ret;
++
++		reg = PPE_MRU_MTU_CTRL_TBL_ADDR + PPE_MRU_MTU_CTRL_TBL_INC * i;
++		ret = regmap_bulk_read(ppe_dev->regmap, reg,
++				       mru_mtu_val, ARRAY_SIZE(mru_mtu_val));
++		if (ret)
++			return ret;
++
++		/* Drop the packet when the packet size is more than
++		 * the MTU or MRU of the physical interface.
++		 */
++		PPE_MRU_MTU_CTRL_SET_MRU_CMD(mru_mtu_val, PPE_ACTION_DROP);
++		PPE_MRU_MTU_CTRL_SET_MTU_CMD(mru_mtu_val, PPE_ACTION_DROP);
++		ret = regmap_bulk_write(ppe_dev->regmap, reg,
++					mru_mtu_val, ARRAY_SIZE(mru_mtu_val));
++		if (ret)
++			return ret;
++
++		reg = PPE_MC_MTU_CTRL_TBL_ADDR + PPE_MC_MTU_CTRL_TBL_INC * i;
++		val = FIELD_PREP(PPE_MC_MTU_CTRL_TBL_MTU_CMD, PPE_ACTION_DROP);
++		ret = regmap_update_bits(ppe_dev->regmap, reg,
++					 PPE_MC_MTU_CTRL_TBL_MTU_CMD,
++					 val);
++		if (ret)
++			return ret;
++	}
++
++	/* Enable CPU port counters. */
++	return ppe_counter_enable_set(ppe_dev, 0);
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -1599,5 +1679,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_servcode_init(ppe_dev);
++	ret = ppe_servcode_init(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_port_config_init(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -233,6 +233,20 @@ struct ppe_sc_cfg {
+ 	int eip_offset_sel;
+ };
+ 
++/**
++ * enum ppe_action_type - PPE action of the received packet.
++ * @PPE_ACTION_FORWARD: Packet forwarded per L2/L3 process.
++ * @PPE_ACTION_DROP: Packet dropped by PPE.
++ * @PPE_ACTION_COPY_TO_CPU: Packet copied to CPU port per multicast queue.
++ * @PPE_ACTION_REDIRECT_TO_CPU: Packet redirected to CPU port per unicast queue.
++ */
++enum ppe_action_type {
++	PPE_ACTION_FORWARD = 0,
++	PPE_ACTION_DROP = 1,
++	PPE_ACTION_COPY_TO_CPU = 2,
++	PPE_ACTION_REDIRECT_TO_CPU = 3,
++};
++
+ int ppe_hw_config(struct ppe_device *ppe_dev);
+ int ppe_queue_scheduler_set(struct ppe_device *ppe_dev,
+ 			    int node_id, bool flow_level, int port,
+@@ -254,4 +268,5 @@ int ppe_port_resource_get(struct ppe_dev
+ 			  int *res_start, int *res_end);
+ int ppe_sc_config_set(struct ppe_device *ppe_dev, int sc,
+ 		      struct ppe_sc_cfg cfg);
++int ppe_counter_enable_set(struct ppe_device *ppe_dev, int port);
+ #endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -40,6 +40,18 @@
+ #define PPE_SERVICE_SET_RX_CNT_EN(tbl_cfg, value)	\
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_SERVICE_W1_RX_CNT_EN)
+ 
++/* PPE port egress VLAN configurations. */
++#define PPE_PORT_EG_VLAN_TBL_ADDR		0x20020
++#define PPE_PORT_EG_VLAN_TBL_ENTRIES		8
++#define PPE_PORT_EG_VLAN_TBL_INC		4
++#define PPE_PORT_EG_VLAN_TBL_VLAN_TYPE		BIT(0)
++#define PPE_PORT_EG_VLAN_TBL_CTAG_MODE		GENMASK(2, 1)
++#define PPE_PORT_EG_VLAN_TBL_STAG_MODE		GENMASK(4, 3)
++#define PPE_PORT_EG_VLAN_TBL_VSI_TAG_MODE_EN	BIT(5)
++#define PPE_PORT_EG_VLAN_TBL_PCP_PROP_CMD	BIT(6)
++#define PPE_PORT_EG_VLAN_TBL_DEI_PROP_CMD	BIT(7)
++#define PPE_PORT_EG_VLAN_TBL_TX_COUNTING_EN	BIT(8)
++
+ /* PPE queue counters enable/disable control. */
+ #define PPE_EG_BRIDGE_CONFIG_ADDR		0x20044
+ #define PPE_EG_BRIDGE_CONFIG_QUEUE_CNT_EN	BIT(2)
+@@ -65,6 +77,41 @@
+ #define PPE_EG_SERVICE_SET_TX_CNT_EN(tbl_cfg, value)	\
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_EG_SERVICE_W1_TX_CNT_EN)
+ 
++/* PPE port control configurations for the traffic to the multicast queues. */
++#define PPE_MC_MTU_CTRL_TBL_ADDR		0x60a00
++#define PPE_MC_MTU_CTRL_TBL_ENTRIES		8
++#define PPE_MC_MTU_CTRL_TBL_INC			4
++#define PPE_MC_MTU_CTRL_TBL_MTU			GENMASK(13, 0)
++#define PPE_MC_MTU_CTRL_TBL_MTU_CMD		GENMASK(15, 14)
++#define PPE_MC_MTU_CTRL_TBL_TX_CNT_EN		BIT(16)
++
++/* PPE port control configurations for the traffic to the unicast queues. */
++#define PPE_MRU_MTU_CTRL_TBL_ADDR		0x65000
++#define PPE_MRU_MTU_CTRL_TBL_ENTRIES		256
++#define PPE_MRU_MTU_CTRL_TBL_INC		0x10
++#define PPE_MRU_MTU_CTRL_W0_MRU			GENMASK(13, 0)
++#define PPE_MRU_MTU_CTRL_W0_MRU_CMD		GENMASK(15, 14)
++#define PPE_MRU_MTU_CTRL_W0_MTU			GENMASK(29, 16)
++#define PPE_MRU_MTU_CTRL_W0_MTU_CMD		GENMASK(31, 30)
++#define PPE_MRU_MTU_CTRL_W1_RX_CNT_EN		BIT(0)
++#define PPE_MRU_MTU_CTRL_W1_TX_CNT_EN		BIT(1)
++#define PPE_MRU_MTU_CTRL_W1_SRC_PROFILE		GENMASK(3, 2)
++#define PPE_MRU_MTU_CTRL_W1_INNER_PREC_LOW	BIT(31)
++#define PPE_MRU_MTU_CTRL_W2_INNER_PREC_HIGH	GENMASK(1, 0)
++
++#define PPE_MRU_MTU_CTRL_SET_MRU(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_MRU_MTU_CTRL_W0_MRU)
++#define PPE_MRU_MTU_CTRL_SET_MRU_CMD(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_MRU_MTU_CTRL_W0_MRU_CMD)
++#define PPE_MRU_MTU_CTRL_SET_MTU(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_MRU_MTU_CTRL_W0_MTU)
++#define PPE_MRU_MTU_CTRL_SET_MTU_CMD(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_MRU_MTU_CTRL_W0_MTU_CMD)
++#define PPE_MRU_MTU_CTRL_SET_RX_CNT_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_MRU_MTU_CTRL_W1_RX_CNT_EN)
++#define PPE_MRU_MTU_CTRL_SET_TX_CNT_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_MRU_MTU_CTRL_W1_TX_CNT_EN)
++
+ /* PPE service code configuration for destination port and counter. */
+ #define PPE_IN_L2_SERVICE_TBL_ADDR		0x66000
+ #define PPE_IN_L2_SERVICE_TBL_ENTRIES		256

target/linux/qualcommbe/patches-6.12/0332-net-ethernet-qualcomm-Initialize-PPE-RSS-hash-settin.patch

@@ -0,0 +1,344 @@
+From 796be78fffeebe77237a6464da7ebe9807d670f0 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:44 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE RSS hash settings
+
+PPE RSS hash is generated during PPE receive, based on the packet
+content (3 tuples or 5 tuples) and as per the configured RSS seed.
+The hash is then used to select the queue to transmit the packet
+to the ARM CPU.
+
+This patch initializes the RSS hash settings that are used to
+generate the hash for the packet during PPE packet receive.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 194 +++++++++++++++++-
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    |  39 ++++
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  40 ++++
+ 3 files changed, 272 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -1191,6 +1191,143 @@ int ppe_counter_enable_set(struct ppe_de
+ 	return regmap_set_bits(ppe_dev->regmap, reg, PPE_PORT_EG_VLAN_TBL_TX_COUNTING_EN);
+ }
+ 
++static int ppe_rss_hash_ipv4_config(struct ppe_device *ppe_dev, int index,
++				    struct ppe_rss_hash_cfg cfg)
++{
++	u32 reg, val;
++
++	switch (index) {
++	case 0:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_IPV4_VAL, cfg.hash_sip_mix[0]);
++		break;
++	case 1:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_IPV4_VAL, cfg.hash_dip_mix[0]);
++		break;
++	case 2:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_IPV4_VAL, cfg.hash_protocol_mix);
++		break;
++	case 3:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_IPV4_VAL, cfg.hash_dport_mix);
++		break;
++	case 4:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_IPV4_VAL, cfg.hash_sport_mix);
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	reg = PPE_RSS_HASH_MIX_IPV4_ADDR + index * PPE_RSS_HASH_MIX_IPV4_INC;
++
++	return regmap_write(ppe_dev->regmap, reg, val);
++}
++
++static int ppe_rss_hash_ipv6_config(struct ppe_device *ppe_dev, int index,
++				    struct ppe_rss_hash_cfg cfg)
++{
++	u32 reg, val;
++
++	switch (index) {
++	case 0 ... 3:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_VAL, cfg.hash_sip_mix[index]);
++		break;
++	case 4 ... 7:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_VAL, cfg.hash_dip_mix[index - 4]);
++		break;
++	case 8:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_VAL, cfg.hash_protocol_mix);
++		break;
++	case 9:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_VAL, cfg.hash_dport_mix);
++		break;
++	case 10:
++		val = FIELD_PREP(PPE_RSS_HASH_MIX_VAL, cfg.hash_sport_mix);
++		break;
++	default:
++		return -EINVAL;
++	}
++
++	reg = PPE_RSS_HASH_MIX_ADDR + index * PPE_RSS_HASH_MIX_INC;
++
++	return regmap_write(ppe_dev->regmap, reg, val);
++}
++
++/**
++ * ppe_rss_hash_config_set - Configure the PPE hash settings for the packet received.
++ * @ppe_dev: PPE device.
++ * @mode: Configure RSS hash for the packet type IPv4 and IPv6.
++ * @cfg: RSS hash configuration.
++ *
++ * PPE RSS hash settings are configured for the packet type IPv4 and IPv6.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_rss_hash_config_set(struct ppe_device *ppe_dev, int mode,
++			    struct ppe_rss_hash_cfg cfg)
++{
++	u32 val, reg;
++	int i, ret;
++
++	if (mode & PPE_RSS_HASH_MODE_IPV4) {
++		val = FIELD_PREP(PPE_RSS_HASH_MASK_IPV4_HASH_MASK, cfg.hash_mask);
++		val |= FIELD_PREP(PPE_RSS_HASH_MASK_IPV4_FRAGMENT, cfg.hash_fragment_mode);
++		ret = regmap_write(ppe_dev->regmap, PPE_RSS_HASH_MASK_IPV4_ADDR, val);
++		if (ret)
++			return ret;
++
++		val = FIELD_PREP(PPE_RSS_HASH_SEED_IPV4_VAL, cfg.hash_seed);
++		ret = regmap_write(ppe_dev->regmap, PPE_RSS_HASH_SEED_IPV4_ADDR, val);
++		if (ret)
++			return ret;
++
++		for (i = 0; i < PPE_RSS_HASH_MIX_IPV4_ENTRIES; i++) {
++			ret = ppe_rss_hash_ipv4_config(ppe_dev, i, cfg);
++			if (ret)
++				return ret;
++		}
++
++		for (i = 0; i < PPE_RSS_HASH_FIN_IPV4_ENTRIES; i++) {
++			val = FIELD_PREP(PPE_RSS_HASH_FIN_IPV4_INNER, cfg.hash_fin_inner[i]);
++			val |= FIELD_PREP(PPE_RSS_HASH_FIN_IPV4_OUTER, cfg.hash_fin_outer[i]);
++			reg = PPE_RSS_HASH_FIN_IPV4_ADDR + i * PPE_RSS_HASH_FIN_IPV4_INC;
++
++			ret = regmap_write(ppe_dev->regmap, reg, val);
++			if (ret)
++				return ret;
++		}
++	}
++
++	if (mode & PPE_RSS_HASH_MODE_IPV6) {
++		val = FIELD_PREP(PPE_RSS_HASH_MASK_HASH_MASK, cfg.hash_mask);
++		val |= FIELD_PREP(PPE_RSS_HASH_MASK_FRAGMENT, cfg.hash_fragment_mode);
++		ret = regmap_write(ppe_dev->regmap, PPE_RSS_HASH_MASK_ADDR, val);
++		if (ret)
++			return ret;
++
++		val = FIELD_PREP(PPE_RSS_HASH_SEED_VAL, cfg.hash_seed);
++		ret = regmap_write(ppe_dev->regmap, PPE_RSS_HASH_SEED_ADDR, val);
++		if (ret)
++			return ret;
++
++		for (i = 0; i < PPE_RSS_HASH_MIX_ENTRIES; i++) {
++			ret = ppe_rss_hash_ipv6_config(ppe_dev, i, cfg);
++			if (ret)
++				return ret;
++		}
++
++		for (i = 0; i < PPE_RSS_HASH_FIN_ENTRIES; i++) {
++			val = FIELD_PREP(PPE_RSS_HASH_FIN_INNER, cfg.hash_fin_inner[i]);
++			val |= FIELD_PREP(PPE_RSS_HASH_FIN_OUTER, cfg.hash_fin_outer[i]);
++			reg = PPE_RSS_HASH_FIN_ADDR + i * PPE_RSS_HASH_FIN_INC;
++
++			ret = regmap_write(ppe_dev->regmap, reg, val);
++			if (ret)
++				return ret;
++		}
++	}
++
++	return 0;
++}
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -1659,6 +1796,57 @@ static int ppe_port_config_init(struct p
+ 	return ppe_counter_enable_set(ppe_dev, 0);
+ }
+ 
++/* Initialize the PPE RSS configuration for IPv4 and IPv6 packet receive.
++ * RSS settings are to calculate the random RSS hash value generated during
++ * packet receive. This hash is then used to generate the queue offset used
++ * to determine the queue used to transmit the packet.
++ */
++static int ppe_rss_hash_init(struct ppe_device *ppe_dev)
++{
++	u16 fins[PPE_RSS_HASH_TUPLES] = { 0x205, 0x264, 0x227, 0x245, 0x201 };
++	u8 ips[PPE_RSS_HASH_IP_LENGTH] = { 0x13, 0xb, 0x13, 0xb };
++	struct ppe_rss_hash_cfg hash_cfg;
++	int i, ret;
++
++	hash_cfg.hash_seed = get_random_u32();
++	hash_cfg.hash_mask = 0xfff;
++
++	/* Use 5 tuple as RSS hash key for the first fragment of TCP, UDP
++	 * and UDP-Lite packets.
++	 */
++	hash_cfg.hash_fragment_mode = false;
++
++	/* The final common seed configs used to calculate the RSS has value,
++	 * which is available for both IPv4 and IPv6 packet.
++	 */
++	for (i = 0; i < ARRAY_SIZE(fins); i++) {
++		hash_cfg.hash_fin_inner[i] = fins[i] & 0x1f;
++		hash_cfg.hash_fin_outer[i] = fins[i] >> 5;
++	}
++
++	/* RSS seeds for IP protocol, L4 destination & source port and
++	 * destination & source IP used to calculate the RSS hash value.
++	 */
++	hash_cfg.hash_protocol_mix = 0x13;
++	hash_cfg.hash_dport_mix = 0xb;
++	hash_cfg.hash_sport_mix = 0x13;
++	hash_cfg.hash_dip_mix[0] = 0xb;
++	hash_cfg.hash_sip_mix[0] = 0x13;
++
++	/* Configure RSS seed configs for IPv4 packet. */
++	ret = ppe_rss_hash_config_set(ppe_dev, PPE_RSS_HASH_MODE_IPV4, hash_cfg);
++	if (ret)
++		return ret;
++
++	for (i = 0; i < ARRAY_SIZE(ips); i++) {
++		hash_cfg.hash_sip_mix[i] = ips[i];
++		hash_cfg.hash_dip_mix[i] = ips[i];
++	}
++
++	/* Configure RSS seed configs for IPv6 packet. */
++	return ppe_rss_hash_config_set(ppe_dev, PPE_RSS_HASH_MODE_IPV6, hash_cfg);
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -1683,5 +1871,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_port_config_init(ppe_dev);
++	ret = ppe_port_config_init(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_rss_hash_init(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -23,6 +23,12 @@
+ /* The service code is used by EDMA port to transmit packet to PPE. */
+ #define PPE_EDMA_SC_BYPASS_ID			1
+ 
++/* The PPE RSS hash configured for IPv4 and IPv6 packet separately. */
++#define PPE_RSS_HASH_MODE_IPV4			BIT(0)
++#define PPE_RSS_HASH_MODE_IPV6			BIT(1)
++#define PPE_RSS_HASH_IP_LENGTH			4
++#define PPE_RSS_HASH_TUPLES			5
++
+ /**
+  * enum ppe_scheduler_frame_mode - PPE scheduler frame mode.
+  * @PPE_SCH_WITH_IPG_PREAMBLE_FRAME_CRC: The scheduled frame includes IPG,
+@@ -247,6 +253,37 @@ enum ppe_action_type {
+ 	PPE_ACTION_REDIRECT_TO_CPU = 3,
+ };
+ 
++/**
++ * struct ppe_rss_hash_cfg - PPE RSS hash configuration.
++ * @hash_mask: Mask of the generated hash value.
++ * @hash_fragment_mode: Hash generation mode for the first fragment of TCP,
++ * UDP and UDP-Lite packets, to use either 3 tuple or 5 tuple for RSS hash
++ * key computation.
++ * @hash_seed: Seed to generate RSS hash.
++ * @hash_sip_mix: Source IP selection.
++ * @hash_dip_mix: Destination IP selection.
++ * @hash_protocol_mix: Protocol selection.
++ * @hash_sport_mix: Source L4 port selection.
++ * @hash_dport_mix: Destination L4 port selection.
++ * @hash_fin_inner: RSS hash value first selection.
++ * @hash_fin_outer: RSS hash value second selection.
++ *
++ * PPE RSS hash value is generated for the packet based on the RSS hash
++ * configured.
++ */
++struct ppe_rss_hash_cfg {
++	u32 hash_mask;
++	bool hash_fragment_mode;
++	u32 hash_seed;
++	u8 hash_sip_mix[PPE_RSS_HASH_IP_LENGTH];
++	u8 hash_dip_mix[PPE_RSS_HASH_IP_LENGTH];
++	u8 hash_protocol_mix;
++	u8 hash_sport_mix;
++	u8 hash_dport_mix;
++	u8 hash_fin_inner[PPE_RSS_HASH_TUPLES];
++	u8 hash_fin_outer[PPE_RSS_HASH_TUPLES];
++};
++
+ int ppe_hw_config(struct ppe_device *ppe_dev);
+ int ppe_queue_scheduler_set(struct ppe_device *ppe_dev,
+ 			    int node_id, bool flow_level, int port,
+@@ -269,4 +306,6 @@ int ppe_port_resource_get(struct ppe_dev
+ int ppe_sc_config_set(struct ppe_device *ppe_dev, int sc,
+ 		      struct ppe_sc_cfg cfg);
+ int ppe_counter_enable_set(struct ppe_device *ppe_dev, int port);
++int ppe_rss_hash_config_set(struct ppe_device *ppe_dev, int mode,
++			    struct ppe_rss_hash_cfg hash_cfg);
+ #endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -16,6 +16,46 @@
+ #define PPE_BM_SCH_CTRL_SCH_OFFSET		GENMASK(14, 8)
+ #define PPE_BM_SCH_CTRL_SCH_EN			BIT(31)
+ 
++/* RSS settings are to calculate the random RSS hash value generated during
++ * packet receive to ARM cores. This hash is then used to generate the queue
++ * offset used to determine the queue used to transmit the packet to ARM cores.
++ */
++#define PPE_RSS_HASH_MASK_ADDR			0xb4318
++#define PPE_RSS_HASH_MASK_HASH_MASK		GENMASK(20, 0)
++#define PPE_RSS_HASH_MASK_FRAGMENT		BIT(28)
++
++#define PPE_RSS_HASH_SEED_ADDR			0xb431c
++#define PPE_RSS_HASH_SEED_VAL			GENMASK(31, 0)
++
++#define PPE_RSS_HASH_MIX_ADDR			0xb4320
++#define PPE_RSS_HASH_MIX_ENTRIES		11
++#define PPE_RSS_HASH_MIX_INC			4
++#define PPE_RSS_HASH_MIX_VAL			GENMASK(4, 0)
++
++#define PPE_RSS_HASH_FIN_ADDR			0xb4350
++#define PPE_RSS_HASH_FIN_ENTRIES		5
++#define PPE_RSS_HASH_FIN_INC			4
++#define PPE_RSS_HASH_FIN_INNER			GENMASK(4, 0)
++#define PPE_RSS_HASH_FIN_OUTER			GENMASK(9, 5)
++
++#define PPE_RSS_HASH_MASK_IPV4_ADDR		0xb4380
++#define PPE_RSS_HASH_MASK_IPV4_HASH_MASK	GENMASK(20, 0)
++#define PPE_RSS_HASH_MASK_IPV4_FRAGMENT		BIT(28)
++
++#define PPE_RSS_HASH_SEED_IPV4_ADDR		0xb4384
++#define PPE_RSS_HASH_SEED_IPV4_VAL		GENMASK(31, 0)
++
++#define PPE_RSS_HASH_MIX_IPV4_ADDR		0xb4390
++#define PPE_RSS_HASH_MIX_IPV4_ENTRIES		5
++#define PPE_RSS_HASH_MIX_IPV4_INC		4
++#define PPE_RSS_HASH_MIX_IPV4_VAL		GENMASK(4, 0)
++
++#define PPE_RSS_HASH_FIN_IPV4_ADDR		0xb43b0
++#define PPE_RSS_HASH_FIN_IPV4_ENTRIES		5
++#define PPE_RSS_HASH_FIN_IPV4_INC		4
++#define PPE_RSS_HASH_FIN_IPV4_INNER		GENMASK(4, 0)
++#define PPE_RSS_HASH_FIN_IPV4_OUTER		GENMASK(9, 5)
++
+ #define PPE_BM_SCH_CFG_TBL_ADDR			0xc000
+ #define PPE_BM_SCH_CFG_TBL_ENTRIES		128
+ #define PPE_BM_SCH_CFG_TBL_INC			0x10

target/linux/qualcommbe/patches-6.12/0333-net-ethernet-qualcomm-Initialize-PPE-queue-to-Ethern.patch

@@ -0,0 +1,122 @@
+From c4a321bc120fabc318df165a7fcdeddfcf052253 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:45 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE queue to Ethernet DMA
+ ring mapping
+
+Configure the selected queues to map with an Ethernet DMA ring for the
+packet to receive on ARM cores.
+
+As default initialization, all queues assigned to CPU port 0 are mapped
+to the EDMA ring 0. This configuration is later updated during Ethernet
+DMA initialization.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 47 ++++++++++++++++++-
+ .../net/ethernet/qualcomm/ppe/ppe_config.h    |  6 +++
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  |  5 ++
+ 3 files changed, 57 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -1328,6 +1328,28 @@ int ppe_rss_hash_config_set(struct ppe_d
+ 	return 0;
+ }
+ 
++/**
++ * ppe_ring_queue_map_set - Set the PPE queue to Ethernet DMA ring mapping
++ * @ppe_dev: PPE device
++ * @ring_id: Ethernet DMA ring ID
++ * @queue_map: Bit map of queue IDs to given Ethernet DMA ring
++ *
++ * Configure the mapping from a set of PPE queues to a given Ethernet DMA ring.
++ *
++ * Return: 0 on success, negative error code on failure.
++ */
++int ppe_ring_queue_map_set(struct ppe_device *ppe_dev, int ring_id, u32 *queue_map)
++{
++	u32 reg, queue_bitmap_val[PPE_RING_TO_QUEUE_BITMAP_WORD_CNT];
++
++	memcpy(queue_bitmap_val, queue_map, sizeof(queue_bitmap_val));
++	reg = PPE_RING_Q_MAP_TBL_ADDR + PPE_RING_Q_MAP_TBL_INC * ring_id;
++
++	return regmap_bulk_write(ppe_dev->regmap, reg,
++				 queue_bitmap_val,
++				 ARRAY_SIZE(queue_bitmap_val));
++}
++
+ static int ppe_config_bm_threshold(struct ppe_device *ppe_dev, int bm_port_id,
+ 				   const struct ppe_bm_port_config port_cfg)
+ {
+@@ -1847,6 +1869,25 @@ static int ppe_rss_hash_init(struct ppe_
+ 	return ppe_rss_hash_config_set(ppe_dev, PPE_RSS_HASH_MODE_IPV6, hash_cfg);
+ }
+ 
++/* Initialize mapping between PPE queues assigned to CPU port 0
++ * to Ethernet DMA ring 0.
++ */
++static int ppe_queues_to_ring_init(struct ppe_device *ppe_dev)
++{
++	u32 queue_bmap[PPE_RING_TO_QUEUE_BITMAP_WORD_CNT] = {};
++	int ret, queue_id, queue_max;
++
++	ret = ppe_port_resource_get(ppe_dev, 0, PPE_RES_UCAST,
++				    &queue_id, &queue_max);
++	if (ret)
++		return ret;
++
++	for (; queue_id <= queue_max; queue_id++)
++		queue_bmap[queue_id / 32] |= BIT_MASK(queue_id % 32);
++
++	return ppe_ring_queue_map_set(ppe_dev, 0, queue_bmap);
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -1875,5 +1916,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_rss_hash_init(ppe_dev);
++	ret = ppe_rss_hash_init(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_queues_to_ring_init(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.h
+@@ -29,6 +29,9 @@
+ #define PPE_RSS_HASH_IP_LENGTH			4
+ #define PPE_RSS_HASH_TUPLES			5
+ 
++/* PPE supports 300 queues, each bit presents as one queue. */
++#define PPE_RING_TO_QUEUE_BITMAP_WORD_CNT	10
++
+ /**
+  * enum ppe_scheduler_frame_mode - PPE scheduler frame mode.
+  * @PPE_SCH_WITH_IPG_PREAMBLE_FRAME_CRC: The scheduled frame includes IPG,
+@@ -308,4 +311,7 @@ int ppe_sc_config_set(struct ppe_device
+ int ppe_counter_enable_set(struct ppe_device *ppe_dev, int port);
+ int ppe_rss_hash_config_set(struct ppe_device *ppe_dev, int mode,
+ 			    struct ppe_rss_hash_cfg hash_cfg);
++int ppe_ring_queue_map_set(struct ppe_device *ppe_dev,
++			   int ring_id,
++			   u32 *queue_map);
+ #endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -207,6 +207,11 @@
+ #define PPE_L0_COMP_CFG_TBL_SHAPER_METER_LEN	GENMASK(1, 0)
+ #define PPE_L0_COMP_CFG_TBL_NODE_METER_LEN	GENMASK(3, 2)
+ 
++/* PPE queue to Ethernet DMA ring mapping table. */
++#define PPE_RING_Q_MAP_TBL_ADDR			0x42a000
++#define PPE_RING_Q_MAP_TBL_ENTRIES		24
++#define PPE_RING_Q_MAP_TBL_INC			0x40
++
+ /* Table addresses for per-queue dequeue setting. */
+ #define PPE_DEQ_OPR_TBL_ADDR			0x430000
+ #define PPE_DEQ_OPR_TBL_ENTRIES			300

target/linux/qualcommbe/patches-6.12/0334-net-ethernet-qualcomm-Initialize-PPE-L2-bridge-setti.patch

@@ -0,0 +1,193 @@
+From cf7282d1e5712953516fa1cc0ffaae405491b3ca Mon Sep 17 00:00:00 2001
+From: Lei Wei <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:46 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Initialize PPE L2 bridge settings
+
+Initialize the L2 bridge settings for the PPE ports to only enable
+L2 frame forwarding between CPU port and PPE Ethernet ports.
+
+The per-port L2 bridge settings are initialized as follows:
+For PPE CPU port, the PPE bridge TX is enabled and FDB learning is
+disabled. For PPE physical ports, the default L2 forwarding action
+is initialized to forward to CPU port only.
+
+L2/FDB learning and forwarding will not be enabled for PPE physical
+ports yet, since the port's VSI (Virtual Switch Instance) and VSI
+membership are not yet configured, which are required for FDB
+forwarding. The VSI and FDB forwarding will later be enabled when
+switchdev is enabled.
+
+Signed-off-by: Lei Wei <[email protected]>
+Signed-off-by: Luo Jie <[email protected]>
+---
+ .../net/ethernet/qualcomm/ppe/ppe_config.c    | 80 ++++++++++++++++++-
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  | 50 ++++++++++++
+ 2 files changed, 129 insertions(+), 1 deletion(-)
+
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_config.c
+@@ -1888,6 +1888,80 @@ static int ppe_queues_to_ring_init(struc
+ 	return ppe_ring_queue_map_set(ppe_dev, 0, queue_bmap);
+ }
+ 
++/* Initialize PPE bridge settings to only enable L2 frame receive and
++ * transmit between CPU port and PPE Ethernet ports.
++ */
++static int ppe_bridge_init(struct ppe_device *ppe_dev)
++{
++	u32 reg, mask, port_cfg[4], vsi_cfg[2];
++	int ret, i;
++
++	/* Configure the following settings for CPU port0:
++	 * a.) Enable Bridge TX
++	 * b.) Disable FDB new address learning
++	 * c.) Disable station move address learning
++	 */
++	mask = PPE_PORT_BRIDGE_TXMAC_EN;
++	mask |= PPE_PORT_BRIDGE_NEW_LRN_EN;
++	mask |= PPE_PORT_BRIDGE_STA_MOVE_LRN_EN;
++	ret = regmap_update_bits(ppe_dev->regmap,
++				 PPE_PORT_BRIDGE_CTRL_ADDR,
++				 mask,
++				 PPE_PORT_BRIDGE_TXMAC_EN);
++	if (ret)
++		return ret;
++
++	for (i = 1; i < ppe_dev->num_ports; i++) {
++		/* Enable invalid VSI forwarding for all the physical ports
++		 * to CPU port0, in case no VSI is assigned to the physical
++		 * port.
++		 */
++		reg = PPE_L2_VP_PORT_TBL_ADDR + PPE_L2_VP_PORT_TBL_INC * i;
++		ret = regmap_bulk_read(ppe_dev->regmap, reg,
++				       port_cfg, ARRAY_SIZE(port_cfg));
++
++		if (ret)
++			return ret;
++
++		PPE_L2_PORT_SET_INVALID_VSI_FWD_EN(port_cfg, true);
++		PPE_L2_PORT_SET_DST_INFO(port_cfg, 0);
++
++		ret = regmap_bulk_write(ppe_dev->regmap, reg,
++					port_cfg, ARRAY_SIZE(port_cfg));
++		if (ret)
++			return ret;
++	}
++
++	for (i = 0; i < PPE_VSI_TBL_ENTRIES; i++) {
++		/* Set the VSI forward membership to include only CPU port0.
++		 * FDB learning and forwarding take place only after switchdev
++		 * is supported later to create the VSI and join the physical
++		 * ports to the VSI port member.
++		 */
++		reg = PPE_VSI_TBL_ADDR + PPE_VSI_TBL_INC * i;
++		ret = regmap_bulk_read(ppe_dev->regmap, reg,
++				       vsi_cfg, ARRAY_SIZE(vsi_cfg));
++		if (ret)
++			return ret;
++
++		PPE_VSI_SET_MEMBER_PORT_BITMAP(vsi_cfg, BIT(0));
++		PPE_VSI_SET_UUC_BITMAP(vsi_cfg, BIT(0));
++		PPE_VSI_SET_UMC_BITMAP(vsi_cfg, BIT(0));
++		PPE_VSI_SET_BC_BITMAP(vsi_cfg, BIT(0));
++		PPE_VSI_SET_NEW_ADDR_LRN_EN(vsi_cfg, true);
++		PPE_VSI_SET_NEW_ADDR_FWD_CMD(vsi_cfg, PPE_ACTION_FORWARD);
++		PPE_VSI_SET_STATION_MOVE_LRN_EN(vsi_cfg, true);
++		PPE_VSI_SET_STATION_MOVE_FWD_CMD(vsi_cfg, PPE_ACTION_FORWARD);
++
++		ret = regmap_bulk_write(ppe_dev->regmap, reg,
++					vsi_cfg, ARRAY_SIZE(vsi_cfg));
++		if (ret)
++			return ret;
++	}
++
++	return 0;
++}
++
+ int ppe_hw_config(struct ppe_device *ppe_dev)
+ {
+ 	int ret;
+@@ -1920,5 +1994,9 @@ int ppe_hw_config(struct ppe_device *ppe
+ 	if (ret)
+ 		return ret;
+ 
+-	return ppe_queues_to_ring_init(ppe_dev);
++	ret = ppe_queues_to_ring_init(ppe_dev);
++	if (ret)
++		return ret;
++
++	return ppe_bridge_init(ppe_dev);
+ }
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -117,6 +117,14 @@
+ #define PPE_EG_SERVICE_SET_TX_CNT_EN(tbl_cfg, value)	\
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_EG_SERVICE_W1_TX_CNT_EN)
+ 
++/* PPE port bridge configuration */
++#define PPE_PORT_BRIDGE_CTRL_ADDR		0x60300
++#define PPE_PORT_BRIDGE_CTRL_ENTRIES		8
++#define PPE_PORT_BRIDGE_CTRL_INC		4
++#define PPE_PORT_BRIDGE_NEW_LRN_EN		BIT(0)
++#define PPE_PORT_BRIDGE_STA_MOVE_LRN_EN		BIT(3)
++#define PPE_PORT_BRIDGE_TXMAC_EN		BIT(16)
++
+ /* PPE port control configurations for the traffic to the multicast queues. */
+ #define PPE_MC_MTU_CTRL_TBL_ADDR		0x60a00
+ #define PPE_MC_MTU_CTRL_TBL_ENTRIES		8
+@@ -125,6 +133,36 @@
+ #define PPE_MC_MTU_CTRL_TBL_MTU_CMD		GENMASK(15, 14)
+ #define PPE_MC_MTU_CTRL_TBL_TX_CNT_EN		BIT(16)
+ 
++/* PPE VSI configurations */
++#define PPE_VSI_TBL_ADDR			0x63800
++#define PPE_VSI_TBL_ENTRIES			64
++#define PPE_VSI_TBL_INC				0x10
++#define PPE_VSI_W0_MEMBER_PORT_BITMAP		GENMASK(7, 0)
++#define PPE_VSI_W0_UUC_BITMAP			GENMASK(15, 8)
++#define PPE_VSI_W0_UMC_BITMAP			GENMASK(23, 16)
++#define PPE_VSI_W0_BC_BITMAP			GENMASK(31, 24)
++#define PPE_VSI_W1_NEW_ADDR_LRN_EN		BIT(0)
++#define PPE_VSI_W1_NEW_ADDR_FWD_CMD		GENMASK(2, 1)
++#define PPE_VSI_W1_STATION_MOVE_LRN_EN		BIT(3)
++#define PPE_VSI_W1_STATION_MOVE_FWD_CMD		GENMASK(5, 4)
++
++#define PPE_VSI_SET_MEMBER_PORT_BITMAP(tbl_cfg, value)		\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_VSI_W0_MEMBER_PORT_BITMAP)
++#define PPE_VSI_SET_UUC_BITMAP(tbl_cfg, value)			\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_VSI_W0_UUC_BITMAP)
++#define PPE_VSI_SET_UMC_BITMAP(tbl_cfg, value)			\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_VSI_W0_UMC_BITMAP)
++#define PPE_VSI_SET_BC_BITMAP(tbl_cfg, value)			\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_VSI_W0_BC_BITMAP)
++#define PPE_VSI_SET_NEW_ADDR_LRN_EN(tbl_cfg, value)		\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_VSI_W1_NEW_ADDR_LRN_EN)
++#define PPE_VSI_SET_NEW_ADDR_FWD_CMD(tbl_cfg, value)		\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_VSI_W1_NEW_ADDR_FWD_CMD)
++#define PPE_VSI_SET_STATION_MOVE_LRN_EN(tbl_cfg, value)		\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_VSI_W1_STATION_MOVE_LRN_EN)
++#define PPE_VSI_SET_STATION_MOVE_FWD_CMD(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_VSI_W1_STATION_MOVE_FWD_CMD)
++
+ /* PPE port control configurations for the traffic to the unicast queues. */
+ #define PPE_MRU_MTU_CTRL_TBL_ADDR		0x65000
+ #define PPE_MRU_MTU_CTRL_TBL_ENTRIES		256
+@@ -163,6 +201,18 @@
+ #define PPE_IN_L2_SERVICE_TBL_RX_CNT_EN		BIT(30)
+ #define PPE_IN_L2_SERVICE_TBL_TX_CNT_EN		BIT(31)
+ 
++/* L2 Port configurations */
++#define PPE_L2_VP_PORT_TBL_ADDR			0x98000
++#define PPE_L2_VP_PORT_TBL_ENTRIES		256
++#define PPE_L2_VP_PORT_TBL_INC			0x10
++#define PPE_L2_VP_PORT_W0_INVALID_VSI_FWD_EN	BIT(0)
++#define PPE_L2_VP_PORT_W0_DST_INFO		GENMASK(9, 2)
++
++#define PPE_L2_PORT_SET_INVALID_VSI_FWD_EN(tbl_cfg, value)	\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_L2_VP_PORT_W0_INVALID_VSI_FWD_EN)
++#define PPE_L2_PORT_SET_DST_INFO(tbl_cfg, value)		\
++	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_L2_VP_PORT_W0_DST_INFO)
++
+ /* PPE service code configuration for the tunnel packet. */
+ #define PPE_TL_SERVICE_TBL_ADDR			0x306000
+ #define PPE_TL_SERVICE_TBL_ENTRIES		256

target/linux/qualcommbe/patches-6.12/0335-net-ethernet-qualcomm-Add-PPE-debugfs-support-for-PP.patch

@@ -0,0 +1,950 @@
+From fc25088f79cccb934d69e563221068589565926f Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:47 +0800
+Subject: [PATCH] net: ethernet: qualcomm: Add PPE debugfs support for PPE
+ counters
+
+The PPE hardware counters maintain counters for packets handled by
+the various functional blocks of PPE. They help in tracing the packets
+passed through PPE and debugging any packet drops.
+
+The counters displayed by this debugfs file are ones that are common
+for all Ethernet ports, and they do not include the counters that are
+specific for a MAC port. Hence they cannot be displayed using ethtool.
+The per-MAC counters will be supported using "ethtool -S" along with
+the netdevice driver.
+
+The PPE hardware packet counters are made available through
+the debugfs entry "/sys/kernel/debug/ppe/packet_counters".
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ drivers/net/ethernet/qualcomm/ppe/Makefile    |   2 +-
+ drivers/net/ethernet/qualcomm/ppe/ppe.c       |  11 +
+ drivers/net/ethernet/qualcomm/ppe/ppe.h       |   3 +
+ .../net/ethernet/qualcomm/ppe/ppe_debugfs.c   | 692 ++++++++++++++++++
+ .../net/ethernet/qualcomm/ppe/ppe_debugfs.h   |  16 +
+ drivers/net/ethernet/qualcomm/ppe/ppe_regs.h  | 102 +++
+ 6 files changed, 825 insertions(+), 1 deletion(-)
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe_debugfs.c
+ create mode 100644 drivers/net/ethernet/qualcomm/ppe/ppe_debugfs.h
+
+--- a/drivers/net/ethernet/qualcomm/ppe/Makefile
++++ b/drivers/net/ethernet/qualcomm/ppe/Makefile
+@@ -4,4 +4,4 @@
+ #
+ 
+ obj-$(CONFIG_QCOM_PPE) += qcom-ppe.o
+-qcom-ppe-objs := ppe.o ppe_config.o
++qcom-ppe-objs := ppe.o ppe_config.o ppe_debugfs.o
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe.c
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe.c
+@@ -16,6 +16,7 @@
+ 
+ #include "ppe.h"
+ #include "ppe_config.h"
++#include "ppe_debugfs.h"
+ 
+ #define PPE_PORT_MAX		8
+ #define PPE_CLK_RATE		353000000
+@@ -199,11 +200,20 @@ static int qcom_ppe_probe(struct platfor
+ 	if (ret)
+ 		return dev_err_probe(dev, ret, "PPE HW config failed\n");
+ 
++	ppe_debugfs_setup(ppe_dev);
+ 	platform_set_drvdata(pdev, ppe_dev);
+ 
+ 	return 0;
+ }
+ 
++static void qcom_ppe_remove(struct platform_device *pdev)
++{
++	struct ppe_device *ppe_dev;
++
++	ppe_dev = platform_get_drvdata(pdev);
++	ppe_debugfs_teardown(ppe_dev);
++}
++
+ static const struct of_device_id qcom_ppe_of_match[] = {
+ 	{ .compatible = "qcom,ipq9574-ppe" },
+ 	{}
+@@ -216,6 +226,7 @@ static struct platform_driver qcom_ppe_d
+ 		.of_match_table = qcom_ppe_of_match,
+ 	},
+ 	.probe	= qcom_ppe_probe,
++	.remove = qcom_ppe_remove,
+ };
+ module_platform_driver(qcom_ppe_driver);
+ 
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe.h
+@@ -11,6 +11,7 @@
+ 
+ struct device;
+ struct regmap;
++struct dentry;
+ 
+ /**
+  * struct ppe_device - PPE device private data.
+@@ -18,6 +19,7 @@ struct regmap;
+  * @regmap: PPE register map.
+  * @clk_rate: PPE clock rate.
+  * @num_ports: Number of PPE ports.
++ * @debugfs_root: Debugfs root entry.
+  * @num_icc_paths: Number of interconnect paths.
+  * @icc_paths: Interconnect path array.
+  *
+@@ -30,6 +32,7 @@ struct ppe_device {
+ 	struct regmap *regmap;
+ 	unsigned long clk_rate;
+ 	unsigned int num_ports;
++	struct dentry *debugfs_root;
+ 	unsigned int num_icc_paths;
+ 	struct icc_bulk_data icc_paths[] __counted_by(num_icc_paths);
+ };
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_debugfs.c
+@@ -0,0 +1,692 @@
++// SPDX-License-Identifier: GPL-2.0-only
++/*
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++/* PPE debugfs routines for display of PPE counters useful for debug. */
++
++#include <linux/bitfield.h>
++#include <linux/debugfs.h>
++#include <linux/regmap.h>
++#include <linux/seq_file.h>
++
++#include "ppe.h"
++#include "ppe_config.h"
++#include "ppe_debugfs.h"
++#include "ppe_regs.h"
++
++#define PPE_PKT_CNT_TBL_SIZE				3
++#define PPE_DROP_PKT_CNT_TBL_SIZE			5
++
++#define PPE_W0_PKT_CNT					GENMASK(31, 0)
++#define PPE_W2_DROP_PKT_CNT_LOW				GENMASK(31, 8)
++#define PPE_W3_DROP_PKT_CNT_HIGH			GENMASK(7, 0)
++
++#define PPE_GET_PKT_CNT(tbl_cnt)			\
++	u32_get_bits(*((u32 *)(tbl_cnt)), PPE_W0_PKT_CNT)
++#define PPE_GET_DROP_PKT_CNT_LOW(tbl_cnt)		\
++	u32_get_bits(*((u32 *)(tbl_cnt) + 0x2), PPE_W2_DROP_PKT_CNT_LOW)
++#define PPE_GET_DROP_PKT_CNT_HIGH(tbl_cnt)		\
++	u32_get_bits(*((u32 *)(tbl_cnt) + 0x3), PPE_W3_DROP_PKT_CNT_HIGH)
++
++#define PRINT_COUNTER_PREFIX(desc, cnt_type)		\
++	seq_printf(seq, "%-16s %16s", desc, cnt_type)
++
++#define PRINT_CPU_CODE_COUNTER(cnt, code)		\
++	seq_printf(seq, "%10u(cpucode:%d)", cnt, code)
++
++#define PRINT_DROP_CODE_COUNTER(cnt, port, code)	\
++	seq_printf(seq, "%10u(port=%d),dropcode:%d", cnt, port, code)
++
++#define PRINT_SINGLE_COUNTER(tag, cnt, str, index)			\
++do {									\
++	if (!((tag) % 4))							\
++		seq_printf(seq, "\n%-16s %16s", "", "");		\
++	seq_printf(seq, "%10u(%s=%04d)", cnt, str, index);		\
++} while (0)
++
++#define PRINT_TWO_COUNTERS(tag, cnt0, cnt1, str, index)			\
++do {									\
++	if (!((tag) % 4))							\
++		seq_printf(seq, "\n%-16s %16s", "", "");		\
++	seq_printf(seq, "%10u/%u(%s=%04d)", cnt0, cnt1, str, index);	\
++} while (0)
++
++/**
++ * enum ppe_cnt_size_type - PPE counter size type
++ * @PPE_PKT_CNT_SIZE_1WORD: Counter size with single register
++ * @PPE_PKT_CNT_SIZE_3WORD: Counter size with table of 3 words
++ * @PPE_PKT_CNT_SIZE_5WORD: Counter size with table of 5 words
++ *
++ * PPE takes the different register size to record the packet counters.
++ * It uses single register, or register table with 3 words or 5 words.
++ * The counter with table size 5 words also records the drop counter.
++ * There are also some other counter types occupying sizes less than 32
++ * bits, which is not covered by this enumeration type.
++ */
++enum ppe_cnt_size_type {
++	PPE_PKT_CNT_SIZE_1WORD,
++	PPE_PKT_CNT_SIZE_3WORD,
++	PPE_PKT_CNT_SIZE_5WORD,
++};
++
++static int ppe_pkt_cnt_get(struct ppe_device *ppe_dev, u32 reg,
++			   enum ppe_cnt_size_type cnt_type,
++			   u32 *cnt, u32 *drop_cnt)
++{
++	u32 drop_pkt_cnt[PPE_DROP_PKT_CNT_TBL_SIZE];
++	u32 pkt_cnt[PPE_PKT_CNT_TBL_SIZE];
++	u32 value;
++	int ret;
++
++	switch (cnt_type) {
++	case PPE_PKT_CNT_SIZE_1WORD:
++		ret = regmap_read(ppe_dev->regmap, reg, &value);
++		if (ret)
++			return ret;
++
++		*cnt = value;
++		break;
++	case PPE_PKT_CNT_SIZE_3WORD:
++		ret = regmap_bulk_read(ppe_dev->regmap, reg,
++				       pkt_cnt, ARRAY_SIZE(pkt_cnt));
++		if (ret)
++			return ret;
++
++		*cnt = PPE_GET_PKT_CNT(pkt_cnt);
++		break;
++	case PPE_PKT_CNT_SIZE_5WORD:
++		ret = regmap_bulk_read(ppe_dev->regmap, reg,
++				       drop_pkt_cnt, ARRAY_SIZE(drop_pkt_cnt));
++		if (ret)
++			return ret;
++
++		*cnt = PPE_GET_PKT_CNT(drop_pkt_cnt);
++
++		/* Drop counter with low 24 bits. */
++		value  = PPE_GET_DROP_PKT_CNT_LOW(drop_pkt_cnt);
++		*drop_cnt = FIELD_PREP(GENMASK(23, 0), value);
++
++		/* Drop counter with high 8 bits. */
++		value  = PPE_GET_DROP_PKT_CNT_HIGH(drop_pkt_cnt);
++		*drop_cnt |= FIELD_PREP(GENMASK(31, 24), value);
++		break;
++	}
++
++	return 0;
++}
++
++static void ppe_tbl_pkt_cnt_clear(struct ppe_device *ppe_dev, u32 reg,
++				  enum ppe_cnt_size_type cnt_type)
++{
++	u32 drop_pkt_cnt[PPE_DROP_PKT_CNT_TBL_SIZE] = {};
++	u32 pkt_cnt[PPE_PKT_CNT_TBL_SIZE] = {};
++
++	switch (cnt_type) {
++	case PPE_PKT_CNT_SIZE_1WORD:
++		regmap_write(ppe_dev->regmap, reg, 0);
++		break;
++	case PPE_PKT_CNT_SIZE_3WORD:
++		regmap_bulk_write(ppe_dev->regmap, reg,
++				  pkt_cnt, ARRAY_SIZE(pkt_cnt));
++		break;
++	case PPE_PKT_CNT_SIZE_5WORD:
++		regmap_bulk_write(ppe_dev->regmap, reg,
++				  drop_pkt_cnt, ARRAY_SIZE(drop_pkt_cnt));
++		break;
++	}
++}
++
++/* The number of packets dropped because of no buffer available, no PPE
++ * buffer assigned to these packets.
++ */
++static void ppe_port_rx_drop_counter_get(struct ppe_device *ppe_dev,
++					 struct seq_file *seq)
++{
++	u32 reg, drop_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("PRX_DROP_CNT", "SILENT_DROP:");
++	for (i = 0; i < PPE_DROP_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_DROP_CNT_TBL_ADDR + i * PPE_DROP_CNT_TBL_INC;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_1WORD,
++				      &drop_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (drop_cnt > 0) {
++			tag++;
++			PRINT_SINGLE_COUNTER(tag, drop_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets dropped because hardware buffers were available
++ * only partially for the packet.
++ */
++static void ppe_port_rx_bm_drop_counter_get(struct ppe_device *ppe_dev,
++					    struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("PRX_BM_DROP_CNT", "OVERFLOW_DROP:");
++	for (i = 0; i < PPE_DROP_STAT_TBL_ENTRIES; i++) {
++		reg = PPE_DROP_STAT_TBL_ADDR + PPE_DROP_STAT_TBL_INC * i;
++
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0) {
++			tag++;
++			PRINT_SINGLE_COUNTER(tag, pkt_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of currently occupied buffers, that can't be flushed. */
++static void ppe_port_rx_bm_port_counter_get(struct ppe_device *ppe_dev,
++					    struct seq_file *seq)
++{
++	int used_cnt, react_cnt;
++	int ret, i, tag = 0;
++	u32 reg, val;
++
++	PRINT_COUNTER_PREFIX("PRX_BM_PORT_CNT", "USED/REACT:");
++	for (i = 0; i < PPE_BM_USED_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_BM_USED_CNT_TBL_ADDR + i * PPE_BM_USED_CNT_TBL_INC;
++		ret = regmap_read(ppe_dev->regmap, reg, &val);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		/* The number of PPE buffers used for caching the received
++		 * packets before the pause frame sent.
++		 */
++		used_cnt = FIELD_GET(PPE_BM_USED_CNT_VAL, val);
++
++		reg = PPE_BM_REACT_CNT_TBL_ADDR + i * PPE_BM_REACT_CNT_TBL_INC;
++		ret = regmap_read(ppe_dev->regmap, reg, &val);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		/* The number of PPE buffers used for caching the received
++		 * packets after pause frame sent out.
++		 */
++		react_cnt = FIELD_GET(PPE_BM_REACT_CNT_VAL, val);
++
++		if (used_cnt > 0 || react_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, used_cnt, react_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets processed by the ingress parser module of PPE. */
++static void ppe_parse_pkt_counter_get(struct ppe_device *ppe_dev,
++				      struct seq_file *seq)
++{
++	u32 reg, cnt = 0, tunnel_cnt = 0;
++	int i, ret, tag = 0;
++
++	PRINT_COUNTER_PREFIX("IPR_PKT_CNT", "TPRX/IPRX:");
++	for (i = 0; i < PPE_IPR_PKT_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_TPR_PKT_CNT_TBL_ADDR + i * PPE_TPR_PKT_CNT_TBL_INC;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_1WORD,
++				      &tunnel_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		reg = PPE_IPR_PKT_CNT_TBL_ADDR + i * PPE_IPR_PKT_CNT_TBL_INC;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_1WORD,
++				      &cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (tunnel_cnt > 0 || cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, tunnel_cnt, cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets received or dropped on the ingress direction. */
++static void ppe_port_rx_counter_get(struct ppe_device *ppe_dev,
++				    struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0, drop_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("PORT_RX_CNT", "RX/RX_DROP:");
++	for (i = 0; i < PPE_PHY_PORT_RX_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_PHY_PORT_RX_CNT_TBL_ADDR + PPE_PHY_PORT_RX_CNT_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_5WORD,
++				      &pkt_cnt, &drop_cnt);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, pkt_cnt, drop_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets received or dropped by the port. */
++static void ppe_vp_rx_counter_get(struct ppe_device *ppe_dev,
++				  struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0, drop_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("VPORT_RX_CNT", "RX/RX_DROP:");
++	for (i = 0; i < PPE_PORT_RX_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_PORT_RX_CNT_TBL_ADDR + PPE_PORT_RX_CNT_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_5WORD,
++				      &pkt_cnt, &drop_cnt);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, pkt_cnt, drop_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets received or dropped by layer 2 processing. */
++static void ppe_pre_l2_counter_get(struct ppe_device *ppe_dev,
++				   struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0, drop_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("PRE_L2_CNT", "RX/RX_DROP:");
++	for (i = 0; i < PPE_PRE_L2_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_PRE_L2_CNT_TBL_ADDR + PPE_PRE_L2_CNT_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_5WORD,
++				      &pkt_cnt, &drop_cnt);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, pkt_cnt, drop_cnt, "vsi", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of VLAN packets received by PPE. */
++static void ppe_vlan_counter_get(struct ppe_device *ppe_dev,
++				 struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("VLAN_CNT", "RX:");
++	for (i = 0; i < PPE_VLAN_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_VLAN_CNT_TBL_ADDR + PPE_VLAN_CNT_TBL_INC * i;
++
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0) {
++			tag++;
++			PRINT_SINGLE_COUNTER(tag, pkt_cnt, "vsi", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets handed to CPU by PPE. */
++static void ppe_cpu_code_counter_get(struct ppe_device *ppe_dev,
++				     struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0;
++	int ret, i;
++
++	PRINT_COUNTER_PREFIX("CPU_CODE_CNT", "CODE:");
++	for (i = 0; i < PPE_DROP_CPU_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_DROP_CPU_CNT_TBL_ADDR + PPE_DROP_CPU_CNT_TBL_INC * i;
++
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (!pkt_cnt)
++			continue;
++
++		/* There are 256 CPU codes saved in the first 256 entries
++		 * of register table, and 128 drop codes for each PPE port
++		 * (0-7), the total entries is 256 + 8 * 128.
++		 */
++		if (i < 256)
++			PRINT_CPU_CODE_COUNTER(pkt_cnt, i);
++		else
++			PRINT_DROP_CODE_COUNTER(pkt_cnt, (i - 256) % 8,
++						(i - 256) / 8);
++		seq_putc(seq, '\n');
++		PRINT_COUNTER_PREFIX("", "");
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets forwarded by VLAN on the egress direction. */
++static void ppe_eg_vsi_counter_get(struct ppe_device *ppe_dev,
++				   struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("EG_VSI_CNT", "TX:");
++	for (i = 0; i < PPE_EG_VSI_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_EG_VSI_COUNTER_TBL_ADDR + PPE_EG_VSI_COUNTER_TBL_INC * i;
++
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0) {
++			tag++;
++			PRINT_SINGLE_COUNTER(tag, pkt_cnt, "vsi", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets trasmitted or dropped by port. */
++static void ppe_vp_tx_counter_get(struct ppe_device *ppe_dev,
++				  struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0, drop_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("VPORT_TX_CNT", "TX/TX_DROP:");
++	for (i = 0; i < PPE_VPORT_TX_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_VPORT_TX_COUNTER_TBL_ADDR + PPE_VPORT_TX_COUNTER_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		reg = PPE_VPORT_TX_DROP_CNT_TBL_ADDR + PPE_VPORT_TX_DROP_CNT_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &drop_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0 || drop_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, pkt_cnt, drop_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets trasmitted or dropped on the egress direction. */
++static void ppe_port_tx_counter_get(struct ppe_device *ppe_dev,
++				    struct seq_file *seq)
++{
++	u32 reg, pkt_cnt = 0, drop_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("PORT_TX_CNT", "TX/TX_DROP:");
++	for (i = 0; i < PPE_PORT_TX_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_PORT_TX_COUNTER_TBL_ADDR + PPE_PORT_TX_COUNTER_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		reg = PPE_PORT_TX_DROP_CNT_TBL_ADDR + PPE_PORT_TX_DROP_CNT_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &drop_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (pkt_cnt > 0 || drop_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, pkt_cnt, drop_cnt, "port", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* The number of packets transmitted or pending by the PPE queue. */
++static void ppe_queue_tx_counter_get(struct ppe_device *ppe_dev,
++				     struct seq_file *seq)
++{
++	u32 reg, val, pkt_cnt = 0, pend_cnt = 0;
++	int ret, i, tag = 0;
++
++	PRINT_COUNTER_PREFIX("QUEUE_TX_CNT", "TX/PEND:");
++	for (i = 0; i < PPE_QUEUE_TX_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_QUEUE_TX_COUNTER_TBL_ADDR + PPE_QUEUE_TX_COUNTER_TBL_INC * i;
++		ret = ppe_pkt_cnt_get(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD,
++				      &pkt_cnt, NULL);
++		if (ret) {
++			seq_printf(seq, "ERROR %d\n", ret);
++			return;
++		}
++
++		if (i < PPE_AC_UNICAST_QUEUE_CFG_TBL_ENTRIES) {
++			reg = PPE_AC_UNICAST_QUEUE_CNT_TBL_ADDR +
++			      PPE_AC_UNICAST_QUEUE_CNT_TBL_INC * i;
++			ret = regmap_read(ppe_dev->regmap, reg, &val);
++			if (ret) {
++				seq_printf(seq, "ERROR %d\n", ret);
++				return;
++			}
++
++			pend_cnt = FIELD_GET(PPE_AC_UNICAST_QUEUE_CNT_TBL_PEND_CNT, val);
++		} else {
++			reg = PPE_AC_MULTICAST_QUEUE_CNT_TBL_ADDR +
++			      PPE_AC_MULTICAST_QUEUE_CNT_TBL_INC *
++			      (i - PPE_AC_UNICAST_QUEUE_CFG_TBL_ENTRIES);
++			ret = regmap_read(ppe_dev->regmap, reg, &val);
++			if (ret) {
++				seq_printf(seq, "ERROR %d\n", ret);
++				return;
++			}
++
++			pend_cnt = FIELD_GET(PPE_AC_MULTICAST_QUEUE_CNT_TBL_PEND_CNT, val);
++		}
++
++		if (pkt_cnt > 0 || pend_cnt > 0) {
++			tag++;
++			PRINT_TWO_COUNTERS(tag, pkt_cnt, pend_cnt, "queue", i);
++		}
++	}
++
++	seq_putc(seq, '\n');
++}
++
++/* Display the various packet counters of PPE. */
++static int ppe_packet_counter_show(struct seq_file *seq, void *v)
++{
++	struct ppe_device *ppe_dev = seq->private;
++
++	ppe_port_rx_drop_counter_get(ppe_dev, seq);
++	ppe_port_rx_bm_drop_counter_get(ppe_dev, seq);
++	ppe_port_rx_bm_port_counter_get(ppe_dev, seq);
++	ppe_parse_pkt_counter_get(ppe_dev, seq);
++	ppe_port_rx_counter_get(ppe_dev, seq);
++	ppe_vp_rx_counter_get(ppe_dev, seq);
++	ppe_pre_l2_counter_get(ppe_dev, seq);
++	ppe_vlan_counter_get(ppe_dev, seq);
++	ppe_cpu_code_counter_get(ppe_dev, seq);
++	ppe_eg_vsi_counter_get(ppe_dev, seq);
++	ppe_vp_tx_counter_get(ppe_dev, seq);
++	ppe_port_tx_counter_get(ppe_dev, seq);
++	ppe_queue_tx_counter_get(ppe_dev, seq);
++
++	return 0;
++}
++
++static int ppe_packet_counter_open(struct inode *inode, struct file *file)
++{
++	return single_open(file, ppe_packet_counter_show, inode->i_private);
++}
++
++static ssize_t ppe_packet_counter_clear(struct file *file,
++					const char __user *buf,
++					size_t count, loff_t *pos)
++{
++	struct ppe_device *ppe_dev = file_inode(file)->i_private;
++	u32 reg;
++	int i;
++
++	for (i = 0; i < PPE_DROP_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_DROP_CNT_TBL_ADDR + i * PPE_DROP_CNT_TBL_INC;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_1WORD);
++	}
++
++	for (i = 0; i < PPE_DROP_STAT_TBL_ENTRIES; i++) {
++		reg = PPE_DROP_STAT_TBL_ADDR + PPE_DROP_STAT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	for (i = 0; i < PPE_IPR_PKT_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_IPR_PKT_CNT_TBL_ADDR + i * PPE_IPR_PKT_CNT_TBL_INC;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_1WORD);
++
++		reg = PPE_TPR_PKT_CNT_TBL_ADDR + i * PPE_TPR_PKT_CNT_TBL_INC;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_1WORD);
++	}
++
++	for (i = 0; i < PPE_VLAN_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_VLAN_CNT_TBL_ADDR + PPE_VLAN_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	for (i = 0; i < PPE_PRE_L2_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_PRE_L2_CNT_TBL_ADDR + PPE_PRE_L2_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_5WORD);
++	}
++
++	for (i = 0; i < PPE_PORT_TX_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_PORT_TX_DROP_CNT_TBL_ADDR + PPE_PORT_TX_DROP_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++
++		reg = PPE_PORT_TX_COUNTER_TBL_ADDR + PPE_PORT_TX_COUNTER_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	for (i = 0; i < PPE_EG_VSI_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_EG_VSI_COUNTER_TBL_ADDR + PPE_EG_VSI_COUNTER_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	for (i = 0; i < PPE_VPORT_TX_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_VPORT_TX_COUNTER_TBL_ADDR + PPE_VPORT_TX_COUNTER_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++
++		reg = PPE_VPORT_TX_DROP_CNT_TBL_ADDR + PPE_VPORT_TX_DROP_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	for (i = 0; i < PPE_QUEUE_TX_COUNTER_TBL_ENTRIES; i++) {
++		reg = PPE_QUEUE_TX_COUNTER_TBL_ADDR + PPE_QUEUE_TX_COUNTER_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	ppe_tbl_pkt_cnt_clear(ppe_dev, PPE_EPE_DBG_IN_CNT_ADDR, PPE_PKT_CNT_SIZE_1WORD);
++	ppe_tbl_pkt_cnt_clear(ppe_dev, PPE_EPE_DBG_OUT_CNT_ADDR, PPE_PKT_CNT_SIZE_1WORD);
++
++	for (i = 0; i < PPE_DROP_CPU_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_DROP_CPU_CNT_TBL_ADDR + PPE_DROP_CPU_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_3WORD);
++	}
++
++	for (i = 0; i < PPE_PORT_RX_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_PORT_RX_CNT_TBL_ADDR + PPE_PORT_RX_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_5WORD);
++	}
++
++	for (i = 0; i < PPE_PHY_PORT_RX_CNT_TBL_ENTRIES; i++) {
++		reg = PPE_PHY_PORT_RX_CNT_TBL_ADDR + PPE_PHY_PORT_RX_CNT_TBL_INC * i;
++		ppe_tbl_pkt_cnt_clear(ppe_dev, reg, PPE_PKT_CNT_SIZE_5WORD);
++	}
++
++	return count;
++}
++
++static const struct file_operations ppe_debugfs_packet_counter_fops = {
++	.owner   = THIS_MODULE,
++	.open    = ppe_packet_counter_open,
++	.read    = seq_read,
++	.llseek  = seq_lseek,
++	.release = single_release,
++	.write   = ppe_packet_counter_clear,
++};
++
++void ppe_debugfs_setup(struct ppe_device *ppe_dev)
++{
++	ppe_dev->debugfs_root = debugfs_create_dir("ppe", NULL);
++	debugfs_create_file("packet_counters", 0444,
++			    ppe_dev->debugfs_root,
++			    ppe_dev,
++			    &ppe_debugfs_packet_counter_fops);
++}
++
++void ppe_debugfs_teardown(struct ppe_device *ppe_dev)
++{
++	debugfs_remove_recursive(ppe_dev->debugfs_root);
++	ppe_dev->debugfs_root = NULL;
++}
+--- /dev/null
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_debugfs.h
+@@ -0,0 +1,16 @@
++/* SPDX-License-Identifier: GPL-2.0-only
++ *
++ * Copyright (c) 2025 Qualcomm Innovation Center, Inc. All rights reserved.
++ */
++
++/* PPE debugfs counters setup. */
++
++#ifndef __PPE_DEBUGFS_H__
++#define __PPE_DEBUGFS_H__
++
++#include "ppe.h"
++
++void ppe_debugfs_setup(struct ppe_device *ppe_dev);
++void ppe_debugfs_teardown(struct ppe_device *ppe_dev);
++
++#endif
+--- a/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
++++ b/drivers/net/ethernet/qualcomm/ppe/ppe_regs.h
+@@ -16,6 +16,39 @@
+ #define PPE_BM_SCH_CTRL_SCH_OFFSET		GENMASK(14, 8)
+ #define PPE_BM_SCH_CTRL_SCH_EN			BIT(31)
+ 
++/* PPE drop counters. */
++#define PPE_DROP_CNT_TBL_ADDR			0xb024
++#define PPE_DROP_CNT_TBL_ENTRIES		8
++#define PPE_DROP_CNT_TBL_INC			4
++
++/* BM port drop counters. */
++#define PPE_DROP_STAT_TBL_ADDR			0xe000
++#define PPE_DROP_STAT_TBL_ENTRIES		30
++#define PPE_DROP_STAT_TBL_INC			0x10
++
++#define PPE_EPE_DBG_IN_CNT_ADDR			0x26054
++#define PPE_EPE_DBG_OUT_CNT_ADDR		0x26070
++
++/* Egress VLAN counters. */
++#define PPE_EG_VSI_COUNTER_TBL_ADDR		0x41000
++#define PPE_EG_VSI_COUNTER_TBL_ENTRIES		64
++#define PPE_EG_VSI_COUNTER_TBL_INC		0x10
++
++/* Port TX counters. */
++#define PPE_PORT_TX_COUNTER_TBL_ADDR		0x45000
++#define PPE_PORT_TX_COUNTER_TBL_ENTRIES		8
++#define PPE_PORT_TX_COUNTER_TBL_INC		0x10
++
++/* Virtual port TX counters. */
++#define PPE_VPORT_TX_COUNTER_TBL_ADDR		0x47000
++#define PPE_VPORT_TX_COUNTER_TBL_ENTRIES	256
++#define PPE_VPORT_TX_COUNTER_TBL_INC		0x10
++
++/* Queue counters. */
++#define PPE_QUEUE_TX_COUNTER_TBL_ADDR		0x4a000
++#define PPE_QUEUE_TX_COUNTER_TBL_ENTRIES	300
++#define PPE_QUEUE_TX_COUNTER_TBL_INC		0x10
++
+ /* RSS settings are to calculate the random RSS hash value generated during
+  * packet receive to ARM cores. This hash is then used to generate the queue
+  * offset used to determine the queue used to transmit the packet to ARM cores.
+@@ -213,6 +246,51 @@
+ #define PPE_L2_PORT_SET_DST_INFO(tbl_cfg, value)		\
+ 	u32p_replace_bits((u32 *)tbl_cfg, value, PPE_L2_VP_PORT_W0_DST_INFO)
+ 
++/* Port RX and RX drop counters. */
++#define PPE_PORT_RX_CNT_TBL_ADDR		0x150000
++#define PPE_PORT_RX_CNT_TBL_ENTRIES		256
++#define PPE_PORT_RX_CNT_TBL_INC			0x20
++
++/* Physical port RX and RX drop counters. */
++#define PPE_PHY_PORT_RX_CNT_TBL_ADDR		0x156000
++#define PPE_PHY_PORT_RX_CNT_TBL_ENTRIES		8
++#define PPE_PHY_PORT_RX_CNT_TBL_INC		0x20
++
++/* Counters for the packet to CPU port. */
++#define PPE_DROP_CPU_CNT_TBL_ADDR		0x160000
++#define PPE_DROP_CPU_CNT_TBL_ENTRIES		1280
++#define PPE_DROP_CPU_CNT_TBL_INC		0x10
++
++/* VLAN counters. */
++#define PPE_VLAN_CNT_TBL_ADDR			0x178000
++#define PPE_VLAN_CNT_TBL_ENTRIES		64
++#define PPE_VLAN_CNT_TBL_INC			0x10
++
++/* PPE L2 counters. */
++#define PPE_PRE_L2_CNT_TBL_ADDR			0x17c000
++#define PPE_PRE_L2_CNT_TBL_ENTRIES		64
++#define PPE_PRE_L2_CNT_TBL_INC			0x20
++
++/* Port TX drop counters. */
++#define PPE_PORT_TX_DROP_CNT_TBL_ADDR		0x17d000
++#define PPE_PORT_TX_DROP_CNT_TBL_ENTRIES	8
++#define PPE_PORT_TX_DROP_CNT_TBL_INC		0x10
++
++/* Virtual port TX counters. */
++#define PPE_VPORT_TX_DROP_CNT_TBL_ADDR		0x17e000
++#define PPE_VPORT_TX_DROP_CNT_TBL_ENTRIES	256
++#define PPE_VPORT_TX_DROP_CNT_TBL_INC		0x10
++
++/* Counters for the tunnel packet. */
++#define PPE_TPR_PKT_CNT_TBL_ADDR		0x1d0080
++#define PPE_TPR_PKT_CNT_TBL_ENTRIES		8
++#define PPE_TPR_PKT_CNT_TBL_INC			4
++
++/* Counters for the all packet received. */
++#define PPE_IPR_PKT_CNT_TBL_ADDR		0x1e0080
++#define PPE_IPR_PKT_CNT_TBL_ENTRIES		8
++#define PPE_IPR_PKT_CNT_TBL_INC			4
++
+ /* PPE service code configuration for the tunnel packet. */
+ #define PPE_TL_SERVICE_TBL_ADDR			0x306000
+ #define PPE_TL_SERVICE_TBL_ENTRIES		256
+@@ -325,6 +403,18 @@
+ #define PPE_BM_PORT_GROUP_ID_INC		0x4
+ #define PPE_BM_PORT_GROUP_ID_SHARED_GROUP_ID	GENMASK(1, 0)
+ 
++/* Counters for PPE buffers used for packets cached. */
++#define PPE_BM_USED_CNT_TBL_ADDR		0x6001c0
++#define PPE_BM_USED_CNT_TBL_ENTRIES		15
++#define PPE_BM_USED_CNT_TBL_INC			0x4
++#define PPE_BM_USED_CNT_VAL			GENMASK(10, 0)
++
++/* Counters for PPE buffers used for packets received after pause frame sent. */
++#define PPE_BM_REACT_CNT_TBL_ADDR		0x600240
++#define PPE_BM_REACT_CNT_TBL_ENTRIES		15
++#define PPE_BM_REACT_CNT_TBL_INC		0x4
++#define PPE_BM_REACT_CNT_VAL			GENMASK(8, 0)
++
+ #define PPE_BM_SHARED_GROUP_CFG_ADDR		0x600290
+ #define PPE_BM_SHARED_GROUP_CFG_ENTRIES		4
+ #define PPE_BM_SHARED_GROUP_CFG_INC		0x4
+@@ -449,6 +539,18 @@
+ #define PPE_AC_GRP_SET_BUF_LIMIT(tbl_cfg, value)	\
+ 	u32p_replace_bits((u32 *)(tbl_cfg) + 0x1, value, PPE_AC_GRP_W1_BUF_LIMIT)
+ 
++/* Counters for packets handled by unicast queues (0-255). */
++#define PPE_AC_UNICAST_QUEUE_CNT_TBL_ADDR	0x84e000
++#define PPE_AC_UNICAST_QUEUE_CNT_TBL_ENTRIES	256
++#define PPE_AC_UNICAST_QUEUE_CNT_TBL_INC	0x10
++#define PPE_AC_UNICAST_QUEUE_CNT_TBL_PEND_CNT	GENMASK(12, 0)
++
++/* Counters for packets handled by multicast queues (256-299). */
++#define PPE_AC_MULTICAST_QUEUE_CNT_TBL_ADDR	0x852000
++#define PPE_AC_MULTICAST_QUEUE_CNT_TBL_ENTRIES	44
++#define PPE_AC_MULTICAST_QUEUE_CNT_TBL_INC	0x10
++#define PPE_AC_MULTICAST_QUEUE_CNT_TBL_PEND_CNT	GENMASK(12, 0)
++
+ /* Table addresses for per-queue enqueue setting. */
+ #define PPE_ENQ_OPR_TBL_ADDR			0x85c000
+ #define PPE_ENQ_OPR_TBL_ENTRIES			300

target/linux/qualcommbe/patches-6.12/0336-MAINTAINERS-Add-maintainer-for-Qualcomm-PPE-driver.patch

@@ -0,0 +1,30 @@
+From 28098c348414fa97531449d4e27ba1587e67c2d9 Mon Sep 17 00:00:00 2001
+From: Luo Jie <[email protected]>
+Date: Sun, 9 Feb 2025 22:29:48 +0800
+Subject: [PATCH] MAINTAINERS: Add maintainer for Qualcomm PPE driver
+
+Add maintainer entry for PPE (Packet Process Engine) driver
+supported for Qualcomm IPQ SoCs.
+
+Signed-off-by: Luo Jie <[email protected]>
+---
+ MAINTAINERS | 8 ++++++++
+ 1 file changed, 8 insertions(+)
+
+--- a/MAINTAINERS
++++ b/MAINTAINERS
+@@ -19131,6 +19131,14 @@ S:	Maintained
+ F:	Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
+ F:	drivers/mtd/nand/raw/qcom_nandc.c
+ 
++QUALCOMM PPE DRIVER
++M:	Luo Jie <[email protected]>
++L:	[email protected]
++S:	Supported
++F:	Documentation/devicetree/bindings/net/qcom,ipq9574-ppe.yaml
++F:	Documentation/networking/device_drivers/ethernet/qualcomm/ppe/ppe.rst
++F:	drivers/net/ethernet/qualcomm/ppe/
++
+ QUALCOMM QSEECOM DRIVER
+ M:	Maximilian Luz <[email protected]>
+ L:	[email protected]