lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite for Android: free password hash cracker in your pocket
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:	Mon, 10 Nov 2014 03:29:27 +0000
From:	Hayes Wang <>
To:	David Miller <>
CC:	"" <>,
	nic_swsd <>,
	"" <>,
	"" <>
Subject: RE: [PATCH net-next 2/2] r8152: adjust rtl_start_rx

 David Miller [] 
> Sent: Saturday, November 08, 2014 12:35 AM
> Does this even work?
> If you leave a hole in the ring, the device is going to stop there
> anyways.

Excuse me. I don't sure I understand your meaning clearly.

The behavior is different for PCI(e) and USB ethernet device.
The PCI nic could know the ring buffer by certain way, so
the device could fill the data into the buffer one by one
automatically. However, for usb nic, the driver has to
indicate (i.e. submit) each buffer for each data. The device
doesn't know what is the next buffer by itself. That is,
the driver determines the order by which the data would be

Therefore, when I try to submit 10 rx buffers and some of
them fail, I could get the data depending on the order of
the successful ones. Besides, the driver has to submit the
buffer for next data continually, so the previous unsuccessful
ones could be tried again for the same time.
Best Regards,
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

Powered by blists - more mailing lists