Re: [PATCH 03/20] net: xilinx: tsn: add endpoint MAC driver skeleton

["Neeli, Srinivas" <srneeli@amd.com>]

Hi,

On 8/8/2026 2:30 AM, Uwe Kleine-König wrote:
> On Fri, Aug 07, 2026 at 04:14:14PM +0530, Nagadheeraj Rottela wrote:
>> From: Srinivas Neeli <srinivas.neeli@amd.com>
>>
>> The TSN Endpoint MAC owns the IP's host-side MCDMA data path and is the
>> netdev physically wired to the CPU. The DSA switch needs this netdev to
>> exist as its conduit.
>>
>> Add a platform driver (compatible "xlnx,tsn-ep-mac") for the endpoint.
>> Register the netdev named "ep", set its MAC address, and provide minimal
>> netdev and ethtool ops. This skeleton handles device bring-up only, with
>> no data path yet. So ndo_open just starts the queues and ndo_start_xmit
>> drops frames.
>>
>> Signed-off-by: Srinivas Neeli <srinivas.neeli@amd.com>
>> Co-developed-by: Nagadheeraj Rottela <nagadheeraj.rottela@amd.com>
>> Signed-off-by: Nagadheeraj Rottela <nagadheeraj.rottela@amd.com>
>> ---
>>   drivers/net/ethernet/xilinx/tsn/Makefile      |   2 +-
>>   drivers/net/ethernet/xilinx/tsn/xilinx_tsn.h  |  15 ++
>>   .../net/ethernet/xilinx/tsn/xilinx_tsn_ep.c   | 152 ++++++++++++++++++
>>   .../net/ethernet/xilinx/tsn/xilinx_tsn_main.c |   3 +
>>   4 files changed, 171 insertions(+), 1 deletion(-)
>>   create mode 100644 drivers/net/ethernet/xilinx/tsn/xilinx_tsn.h
>>   create mode 100644 drivers/net/ethernet/xilinx/tsn/xilinx_tsn_ep.c
>>
>> diff --git a/drivers/net/ethernet/xilinx/tsn/Makefile b/drivers/net/ethernet/xilinx/tsn/Makefile
>> index 6f99226f3dc8..5886828b386f 100644
>> --- a/drivers/net/ethernet/xilinx/tsn/Makefile
>> +++ b/drivers/net/ethernet/xilinx/tsn/Makefile
>> @@ -1,2 +1,2 @@
>>   obj-$(CONFIG_XILINX_TSN) += xilinx_tsn.o
>> -xilinx_tsn-y := xilinx_tsn_main.o
>> +xilinx_tsn-y := xilinx_tsn_main.o xilinx_tsn_ep.o
>> diff --git a/drivers/net/ethernet/xilinx/tsn/xilinx_tsn.h b/drivers/net/ethernet/xilinx/tsn/xilinx_tsn.h
>> new file mode 100644
>> index 000000000000..b0757e22d1fd
>> --- /dev/null
>> +++ b/drivers/net/ethernet/xilinx/tsn/xilinx_tsn.h
>> @@ -0,0 +1,15 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
>> +/*
>> + * AMD/Xilinx TSN Endpoint Ethernet MAC driver, shared definitions.
>> + *
>> + * Copyright (C) 2026 Advanced Micro Devices, Inc.
>> + */
>> +
>> +#ifndef _XILINX_TSN_H
>> +#define _XILINX_TSN_H
>> +
>> +#include <linux/platform_device.h>
>> +
>> +extern struct platform_driver xlnx_tsn_ep_driver;
>> +
>> +#endif /* _XILINX_TSN_H */
>> diff --git a/drivers/net/ethernet/xilinx/tsn/xilinx_tsn_ep.c b/drivers/net/ethernet/xilinx/tsn/xilinx_tsn_ep.c
>> new file mode 100644
>> index 000000000000..9b556edf5423
>> --- /dev/null
>> +++ b/drivers/net/ethernet/xilinx/tsn/xilinx_tsn_ep.c
>> @@ -0,0 +1,152 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * AMD/Xilinx TSN Endpoint MAC driver.
>> + *
>> + * Copyright (C) 2026 Advanced Micro Devices, Inc.
>> + */
>> +
>> +#include <linux/etherdevice.h>
>> +#include <linux/ethtool.h>
>> +#include <linux/if_ether.h>
>> +#include <linux/kernel.h>
>> +#include <linux/mod_devicetable.h>
>> +#include <linux/module.h>
>> +#include <linux/netdevice.h>
>> +#include <linux/of.h>
>> +#include <linux/of_net.h>
>> +#include <linux/platform_device.h>
>> +#include <linux/string.h>
>> +#include <linux/types.h>
> As for patch #2: Please drop <linux/mod_devicetable.h>.
>
> Best regards
> Uwe

Sure,  Will update in V2 series.

Thanks

Srinivas Neeli