Date: Fri, 22 Jul 2011 15:09:41 +0700 From: "Ivan Alexandrovich" <ivsan@ngs.ru> To: freebsd-net@freebsd.org Subject: Ethernet link status on i82576 Message-ID: <web-8285764@mx16.intranet.ru>
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Hi
I've just noticed the following problem with
intel's quad-port card based on i82756 chip:
When the ethernet link goes down igb driver doesn't
detect link status change.
When the cable is unplugged ifconfig(8) still shows:
igb5: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500
options=1bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4>
ether 00:1b:21:81:e9:57
media: Ethernet autoselect (1000baseT <full-duplex>)
status: active
Ethernet card: E1G44ET2
Motherboard: Intel S550WBV
OS: FreeBSD 8.2-RELEASE, FreeBSD-9.0 (201105 snapshot)
Driver: igb-2.0.7 (stock kernel), Intel's igb-2.2.3
On linux with 2.6.38 kernel link status detection
on E1G44ET2 works fine.
Tried to use debugging in intel's driver (set DEBUG_INIT*
defines in if_igb.h to "1") but had no success.
When the ethernet cable is plugged in it logs:
igb_media_status: begin
link state changed to UP
ioctl rcv'd: SIOCxIFMEDIA (Get/Set Interface Media)
igb_media_status: begin
ioctl rcv'd: SIOCxIFMEDIA (Get/Set Interface Media)
igb_media_status: begin
But when I detach cable the driver remains silent.
Some addtitional data concerning the issue included bellow.
Thanks,
Ivan
FreeBSD 8.2-RELEASE, stock kernel's if_igb driver 2.0.7, dmesg excerpt
----------------------------------------------------------------------
igb5: <Intel(R) PRO/1000 Network Connection version - 2.0.7> port
0x1000-0x101f mem 0xb2400000-0xb241ffff,0xb1c00000-0xb1ffffff,0xb2440000-
igb5: Using MSIX interrupts with 9 vectors
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: [ITHREAD]
igb5: Ethernet address: 00:1b:21:81:e9:57
..
igb5: link state changed to UP
linux, /usr/sbin/lspci output
-----------------------------
07:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network
Connection (rev 01)
07:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network
Connection (rev 01)
0a:00.0 Ethernet controller: Intel Corporation 82576 Gigabit Network
Connection (rev 01)
0a:00.1 Ethernet controller: Intel Corporation 82576 Gigabit Network
Connection (rev 01)
linux, kernel 2.6.38, dmesg excerpt
-----------------------------------
igb 0000:0a:00.1: PCI INT B -> GSI 37 (level, low) -> IRQ 37
igb 0000:0a:00.1: setting latency timer to 64
igb 0000:0a:00.1: irq 118 for MSI/MSI-X
igb 0000:0a:00.1: irq 119 for MSI/MSI-X
igb 0000:0a:00.1: irq 120 for MSI/MSI-X
igb 0000:0a:00.1: irq 121 for MSI/MSI-X
igb 0000:0a:00.1: irq 122 for MSI/MSI-X
igb 0000:0a:00.1: irq 123 for MSI/MSI-X
igb 0000:0a:00.1: irq 124 for MSI/MSI-X
igb 0000:0a:00.1: irq 125 for MSI/MSI-X
igb 0000:0a:00.1: irq 126 for MSI/MSI-X
igb 0000:0a:00.1: 0 vfs allocated
igb 0000:0a:00.1: Intel(R) Gigabit Ethernet Network Connection
igb 0000:0a:00.1: eth5: (PCIe:2.5Gb/s:Width x4) 00:1b:21:81:e9:57
igb 0000:0a:00.1: eth5: PBA No: E91609-003
igb 0000:0a:00.1: Using MSI-X interrupts. 8 rx queue(s), 8 tx queue(s)
igb 0000:0a:00.1: DCA enabled
..
igb: eth4 NIC Link is Down
igb: eth4 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
igb: eth7 NIC Link is Down
igb: eth7 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX
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