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
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