Date: Wed, 26 Nov 2025 03:07:32 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 290973] qlnxe: nic aggregation (using lagg) not working unless promiscuous mode is enabled Message-ID: <bug-290973-7501-CTDMtpcJLj@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-290973-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-290973-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=290973 Zhenlei Huang <zlei@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|net@FreeBSD.org |zlei@FreeBSD.org Flags| |mfc-stable15?, | |mfc-stable14?, | |mfc-stable13? Severity|Affects Only Me |Affects Some People Status|New |In Progress --- Comment #4 from Zhenlei Huang <zlei@FreeBSD.org> --- (In reply to peter.sopko+freebsd.org from comment #3) > I tried capturing traffic on the ql0 interface when it is not set to promisc mode > using the command you suggested, but there appears to be absolutely no traffic > captured at all... Actually the interface should at least send out LACP packets when it is a member of lagg interface. I have managed to repeat this issue. There're two issue with qlnxe(4) currently are identified. The first one is, the out path ( if_transmit ) lacks ETHER_BPF_MTAP and thus bpf(4) does not have a chance to see the outgoing packets. The second one is, there's a small initialization bug, that when the qlnxe(4) is not flagged up, aka `ifconfig ql0 up`, setup the multicast addresses ( aka SIOCADDMULTI ioctl ) is a noop, and the interface will not be programmed with desired multicast filter, hence the slow protocol multicast traffic ( dest 01:80:c2:00:00:02 ) are all dropped by the interface. That can be identified by the statistic, ``` # sysctl dev.ql.0.hwstat.mac_filter_discards dev.ql.0.hwstat.mac_filter_discards: 284 ``` To workaround the second issue, you may want to put the qlnxe(4) interface into up status before adding it to lagg(4), ``` # ifconfig ql0 up # ifconfig ql1 up # ifconfig lagg0 create # ifconfig lagg0 laggproto lacp laggport ql0 laggport ql1 # ifconfig lagg0 up # ifconfig lagg0 lagg0: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP> metric 0 mtu 1500 options=8d07bb<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,JUMBO_MTU,VLAN_HWCSUM,TSO4,TSO6,LRO,VLAN_HWFILTER,VLAN_HWTSO,LINKSTATE,HWSTATS> ether f4:e9:d4:xx:xx:xx hwaddr 00:00:00:00:00:00 laggproto lacp lagghash l2,l3,l4 laggport: ql0 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> laggport: ql1 flags=1c<ACTIVE,COLLECTING,DISTRIBUTING> groups: lagg media: Ethernet autoselect status: active nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL> ``` I'm preparing the fix. -- You are receiving this mail because: You are the assignee for the bug.
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