>Number:         14789
>Category:       kern
>Synopsis:       tlp driver fails under load with a Macronix MX98713
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    kern-bug-people
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Fri Nov 30 02:41:00 PST 2001
>Closed-Date:
>Last-Modified:
>Originator:     Martin Husemann
>Release:        NetBSD 1.5.3_Alpha (head of netbsd-1-5 branch as of Nov 28)
>Organization:
	
>Environment:
System: NetBSD emmas.aprisoft.de 1.5.3_ALPHA NetBSD 1.5.3_ALPHA (EMMAS) #0: Thu Nov 29 13:57:32 CET 2001
Architecture: i386
Machine: i386
>Description:

After some amount of heavy load, the tlp0 driver spit out the following
messages:

Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: MII error
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: dribbling bit
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: CRC error
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: MII error
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: MII error
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: dribbling bit
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: CRC error
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: MII error
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: dribbling bit
Nov 30 09:48:44 emmas /netbsd: tlp0: receive error: CRC error
Nov 30 09:49:25 emmas /netbsd: tlp0: receive error: MII error
Nov 30 09:49:25 emmas /netbsd: tlp0: receive error: dribbling bit
Nov 30 09:49:25 emmas /netbsd: tlp0: receive error: CRC error
Nov 30 09:49:25 emmas /netbsd: tlp0: receive error: MII error

Then tlp0 stoped working completely.

>How-To-Repeat:

This is the dmesg from that card:

tlp0 at pci0 dev 11 function 0: Macronix MX98713 Ethernet, pass 0.0
tlp0: interrupting at irq 9
tlp0: Ethernet address 00:40:05:50:ee:9b
tlp0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX

It is connected to a 100 Mbit/s switch and using full-duplex.
The card previously worked for quite some time on a different machine
but connected to a 10 Mbit/s hub only (driven by the tlp driver as well).
It never has shown similar symtoms.

FWIW: on this machine irq 9 is shared with the USB host controllers, but
there is nothing connected to it.

>Fix:
Detect this and reset the card/MII?
>Release-Note:
>Audit-Trail:
>Unformatted: