On Sun, Feb 09, 2025 at 10:29:36PM +0800, Luo Jie wrote:

+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

                                    "The other one is used ..."

+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.
+
<snipped>...
+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

If somehow new source files were added, should the list above be updated to
keep up?

+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

Literal code block should format above nicer, but plain paragraph is fine.

+
+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

"If the driver is built as a module, the module will be called qcom-ppe."
(I assume that readers know how to insert/remove modules).

Thanks.

-- 
An old man doll... just what I always wanted! - Clara