From: Alexander Bluhm <alexander.bluhm@gmx.net>
Subject: Re: bnxt(4) tso
To: Hrvoje Popovski <hrvoje@srce.hr>
Cc: Jonathan Matthew <jonathan@d14n.org>, Jan Klemkow <j.klemkow@wemelug.de>, tech@openbsd.org
Date: Fri, 12 Jan 2024 10:35:21 +0100

On Fri, Jan 12, 2024 at 10:27:30AM +0100, Hrvoje Popovski wrote:
> On 12.1.2024. 9:32, Alexander Bluhm wrote:
> > On Fri, Jan 12, 2024 at 12:43:44AM +0100, Alexander Bluhm wrote:
> >> I have thrown your diff on my test setup.
> > Sending TCP works as expected with line speed.
> > 
> > Jumbo frames and vlan looks completely broken.
> > Also socket splicing and userland relay copy have problems.
> > 
> > On my text matrix I see a lot of failed tests.
> > http://bluhm.genua.de/netlink/results/2024-01-11T10%3A37%3A05Z/netlink.html
> > 
> > It is possible that only one test transfers the hardware in a bad
> > state and all other tests after that fail.
> > 
> > bluhm
> 
> 
> Hi,
> 
> mbuhl@ ping me few day ago to test vlan/tso and with or without vlan I'm
> getting same good results.
> For me vlan is working just fine ... My bnxt interfaces are 10GBase-T

mbuhl@ is testing on the same setup as I do.  And he has seen
simmilar failures with bnxt TSO diff a few days ago.  So it might
be a measurement specific problem.  But it works without the diff
and also just sending with TSO works fine.

bnxt0 at pci4 dev 0 function 0 "Broadcom BCM57412" rev 0x01: fw ver 214.4.91, msix, 8 queues, address 14:23:f2:a0:71:e0
bnxt1 at pci4 dev 0 function 1 "Broadcom BCM57412" rev 0x01: fw ver 214.4.91, msix, 8 queues, address 14:23:f2:a0:71:e1

root@ot42:.../~# ifconfig bnxt0 hwfeatures
bnxt0: flags=8c43<UP,BROADCAST,RUNNING,OACTIVE,SIMPLEX,MULTICAST> mtu 9000
        hwfeatures=31b7<CSUM_IPv4,CSUM_TCPv4,CSUM_UDPv4,VLAN_MTU,VLAN_HWTAGGING,CSUM_TCPv6,CSUM_UDPv6,TSOv4,TSOv6> hardmtu 9500
        lladdr 14:23:f2:a0:71:e0
        index 1 priority 0 llprio 3
        media: Ethernet autoselect (10GSFP+Cu full-duplex,rxpause,txpause)
        status: active

bluhm