[haiku-bugs] Re: [Haiku] #9624: AX88772B USB Ethernet. Read::MISMATCH of the frame length
- From: "phoudoin" <trac@xxxxxxxxxxxx>
- Date: Fri, 26 Apr 2013 20:45:54 -0000
#9624: AX88772B USB Ethernet. Read::MISMATCH of the frame length
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Reporter: kallisti5 | Owner: kallisti5
Type: bug | Status: assigned
Priority: normal | Milestone: R1
Component: Drivers/Network/usb_asix | Version: R1/Development
Resolution: | Keywords: MISMATCH
Blocked By: | Blocking:
Has a Patch: 0 | Platform: All
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Comment (by phoudoin):
Well, when compared to FreeBSD's if_axe.c/if_axeregs.h, it seems that each
frame is 16bits aligned, which can explain these 153 vs 154 mismatches.
I'm also worried that the device is supposed to send frames in burst mode,
but we only queue an USB bulk read for one frame max size (1536 or
something).
In such situation, if several small (think UDP) ethernet frames are really
pending, the device will return *several* frames in one bulk read, but we
only use the first one.
It's clearly broken.
--
Ticket URL: <http://dev.haiku-os.org/ticket/9624#comment:8>
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