Comparing this to the Linux driver which does detect the link down I've
discovered it actually polls the link status by default in its watchdog.
Disabling this with "ethtool --set-priv-flags eth1 LinkPolling off" and
the Linux driver also fails to detect link down.
So this seems like a firmware or even hardware bug where it should be
reporting down events and the Linux driver has been updated to
workaround the problem?
On 11/11/2015 14:59, Steven Hartland wrote:
Seems the Intel XL710 (ixl) has broken link detection, it triggers on
link up but not on link down.
I'm currently running HEAD (r290610) on the box which has 1.4.3 and
have tried the latest driver from downloads.intel.com which is listed
as 1.4.8 but reports 1.4.5.
We've updated to the latest NVM image today to see if that would help
but no change.
Tracing with dtrace shows that ixl_do_adminq process a link event and
fires off ixl_link_event for link up but not for link down for some
reason.
Running ifconfig against the interface updates the status as runs
ixl_update_link_status in ixl_media_status, so the device can
determine the link is down its just not noticing the event.
From dmesg:
ixl0: <Intel(R) Ethernet Connection XL710 Driver, Version - 1.4.3> mem
0xc5000000-0xc57fffff,0xc5808000-0xc580ffff irq 34 at device 0.0 on pci5
ixl0: Using MSIX interrupts with 33 vectors
ixl0: f4.40 a1.4 n04.53 e80001ccc
ixl0: Using defaults for TSO: 65518/35/2048
ixl0: Ethernet address: 0c:c4:7a:3a:2d:60
ixl0: PCI Express Bus: Speed 8.0GT/s Width x8
queues is 0xfffffe00015bd000
ixl0: netmap queues/slots: TX 32/1024, RX 32/1024
ixl1: <Intel(R) Ethernet Connection XL710 Driver, Version - 1.4.3> mem
0xc4800000-0xc4ffffff,0xc5800000-0xc5807fff irq 34 at device 0.1 on pci5
ixl1: Using MSIX interrupts with 33 vectors
ixl1: f4.40 a1.4 n04.53 e80001ccc
ixl1: Using defaults for TSO: 65518/35/2048
ixl1: Ethernet address: 0c:c4:7a:3a:2d:61
ixl1: PCI Express Bus: Speed 8.0GT/s Width x8
queues is 0xfffffe0001ad1000
ixl1: netmap queues/slots: TX 32/1024, RX 32/1024
When its up it reports 10GBase-KR
Any ideas?
Regards
Steve
_______________________________________________
freebsd-net@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
