Date: Wed, 11 Nov 2015 14:59:44 +0000 From: Steven Hartland <steven@multiplay.co.uk> To: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Cc: Jack F Vogel <jfv@FreeBSD.org> Subject: Intel XL710 broken link down detection? Message-ID: <564357E0.1050002@freebsd.org>
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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
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