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RE: USB GADGET: have a question about usb2eth

From Lipengcheng <lpc.li@hisilicon.com>
Newsgroups linux.kernel
Subject RE: USB GADGET: have a question about usb2eth
Date 2016-10-17 09:00 +0200
Message-ID <sta3U-8rr-11@gated-at.bofh.it> (permalink)
References <sstih-5E9-3@gated-at.bofh.it> <st5nz-5hC-5@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Hi,
	thank you for your suggestion.
	I have a question about usb2eth. In the function gen_ndis_set_resp
of the rndis.c, the value of *params->filter may be 0x20 from the
pc set command; Howerver the value is used cdc_filter = 
dev->port_usb->cdc_filter in the function eth_start_xmit of the u_ether.c.
If we do not judge the RNDIS_PACKET_TYPE_PROMISCUOUS and the value is
0x20, the broadcast packet can not send the pc win7; At the result, 
the linux ping the win7 is slow an the first. At the same time, Why are 
different value between RNDIS_PACKET_TYPE_PROMISCUOUS and
USB_CDC_PACKET_TYPE_PROMISCUOUS? If the value of RNDIS_PACKET_TYPE_PROMISCUOUS
and USB_CDC_PACKET_TYPE_PROMISCUOUS is same, then the linux ping the win7 is
normal speed.

Best Regards
Pengcheng Li

> -----Original Message-----
> From: Peter Chen [mailto:hzpeterchen@gmail.com]
> Sent: Monday, October 17, 2016 9:56 AM
> To: Lipengcheng
> Cc: balbi@ti.com; gregkh@linuxfoundation.org; linux-usb@vger.kernel.org; linux-kernel@vger.kernel.org
> Subject: Re: USB GADGET: have a question about usb2eth
> 
> On Sat, Oct 15, 2016 at 09:19:33AM +0000, Lipengcheng wrote:
> > Hi,
> > 	I have a question about usb2eth. In the function gen_ndis_set_resp of the rndis.c, the value of *params->filter may be 0x20 from the pc
> set command; Howerver the value is used cdc_filter = dev->port_usb->cdc_filter in the function eth_start_xmit of the u_ether.c. If we do not
> judge the RNDIS_PACKET_TYPE_PROMISCUOUS and the value is 0x20, the broadcast packet can not send the pc win7; At the result, the linux
> ping the win7 is slow an the first.
> >
> 
> The Felipe's email has changed, please check MAINTAINERS.
> Besides, would you wrap up line to 75 characters please?
> 
> --
> 
> Best Regards,
> Peter Chen

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Thread

USB GADGET: have a question about usb2eth Lipengcheng <lpc.li@hisilicon.com> - 2016-10-15 11:20 +0200
  Re: USB GADGET: have a question about usb2eth Peter Chen <hzpeterchen@gmail.com> - 2016-10-17 04:00 +0200
    RE: USB GADGET: have a question about usb2eth Lipengcheng <lpc.li@hisilicon.com> - 2016-10-17 09:00 +0200
      RE: USB GADGET: have a question about usb2eth Felipe Balbi <balbi@kernel.org> - 2016-10-17 11:40 +0200
        RE: USB GADGET: have a question about usb2eth Lipengcheng <lpc.li@hisilicon.com> - 2016-10-18 05:30 +0200
          RE: USB GADGET: have a question about usb2eth Felipe Balbi <balbi@kernel.org> - 2016-10-18 09:20 +0200

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