Date: Thu, 11 Apr 2013 10:11:30 +0900 From: YongHyeon PYUN <pyunyh@gmail.com> To: Spil Oss <spil.oss@gmail.com> Cc: current <freebsd-current@freebsd.org> Subject: Re: Problems with axe(4) and checksum offloading Message-ID: <20130411011130.GA2985@michelle.cdnetworks.com> In-Reply-To: <CAEJyAvPvyM6gGKM_Y_cJpNDxpPxyOKJu=7AADCB=NAw4%2BpwaGw@mail.gmail.com> References: <CAEJyAvM%2B8yKRgGwxoJrMnafTy%2B3dqAc=cFVvruXk9-aONgEGEQ@mail.gmail.com> <20130408063548.GB1526@michelle.cdnetworks.com> <CAEJyAvNjvHAGU4dErzAn3qTfX4hiqVSGAuH8j4OJ_3g5hmdu_Q@mail.gmail.com> <20130410021455.GB3086@michelle.cdnetworks.com> <CAEJyAvPvyM6gGKM_Y_cJpNDxpPxyOKJu=7AADCB=NAw4%2BpwaGw@mail.gmail.com>
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On Wed, Apr 10, 2013 at 07:48:00PM +0200, Spil Oss wrote: > Hi YongHyeon, > > With the original unmodified .ko... > > ifconfig output as requested at bottom > > Static IP-configuration does not make a difference with the ipfw behaviour. > > ipfw ruleset (based on /etc/rc.firewall simple ruleset) > 00010 allow ip from any to me dst-port 22 recv ue0 > 00010 allow tcp from me 22 to any xmit ue0 > 00100 allow ip from any to any via lo0 > 00200 deny ip from any to 127.0.0.0/8 > 00300 deny ip from 127.0.0.0/8 to any > 00400 deny ip from any to ::1 > 00500 deny ip from ::1 to any > 00600 allow ipv6-icmp from :: to ff02::/16 > 00700 allow ipv6-icmp from fe80::/10 to fe80::/10 > 00800 allow ipv6-icmp from fe80::/10 to ff02::/16 > 00900 allow ipv6-icmp from any to any ip6 icmp6types 1 > 01000 allow ipv6-icmp from any to any ip6 icmp6types 2,135,136 > 01100 deny ip from 10.16.2.1 to any in via ue0 > 01200 deny ip from 172.17.2.111 to any in via re0 > 01300 deny ip from any to 10.0.0.0/8 via ue0 > 01500 deny ip from any to 192.168.0.0/16 via ue0 > 01600 deny ip from any to 0.0.0.0/8 via ue0 > 01700 deny ip from any to 169.254.0.0/16 via ue0 > 01800 deny ip from any to 192.0.2.0/24 via ue0 > 01900 deny ip from any to 224.0.0.0/4 via ue0 > 02000 deny ip from any to 240.0.0.0/4 via ue0 > 02100 divert 8668 ip4 from any to any via ue0 > 02200 deny ip from 10.0.0.0/8 to any via ue0 > 02400 deny ip from 192.168.0.0/16 to any via ue0 > 02500 deny ip from 0.0.0.0/8 to any via ue0 > 02600 deny ip from 169.254.0.0/16 to any via ue0 > 02700 deny ip from 192.0.2.0/24 to any via ue0 > 02800 deny ip from 224.0.0.0/4 to any via ue0 > 02900 deny ip from 240.0.0.0/4 to any via ue0 > 03000 allow tcp from any to any established > 03100 allow ip from any to any frag > 03200 allow tcp from any to me dst-port 22 setup > 03300 allow tcp from any to me dst-port 25 setup > 03400 allow tcp from any to me dst-port 465 setup > 03500 allow tcp from any to me dst-port 587 setup > 03600 allow tcp from any to me dst-port 80 setup > 03700 allow tcp from any to me dst-port 443 setup > 03800 deny log logamount 5 ip4 from any to any in via ue0 setup proto tcp > 03900 allow tcp from any to any setup > 04000 allow udp from me to any dst-port 53 keep-state > 04100 allow udp from me to any dst-port 123 keep-state > 04200 allow ip from any to any dst-port 22 recv ue0 > 65535 deny ip from any to any > > If I remove rule 10 it will NOT work with ue0, the ruleset without rule 10 > DOES work with re0. > > Found an older PR about em or fxp having trouble with natd when > rxcsum/txcsum was enabled, that is why I started fiddling with > rxcsum/txcsum and found that the NIC would be unusable without > rxcsum/txcsum enabled. If only I could find that PR now (kern/170081???)... > Was fixed in base... If you don't use ipfw/natd, checksum offloading of axe(4) work? If yes, you'd get better answer from ipfw mailing list. > > Some other post reported fake AX88772A chips (32-pin packaging vs 64 in the > original) on cheap USB NICs so I checked the hardware as well and could not AX88772A does not support TX/RX checksum offloading. > see an issue (64-pin packaging). > > # ifconfig ue0 > ue0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=8000b<RXCSUM,TXCSUM,VLAN_MTU,LINKSTATE> > ether 00:60:6e:42:5b:53 > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active > > # dhclient ue0 > DHCPDISCOVER on ue0 to 255.255.255.255 port 67 interval 4 > DHCPOFFER from 172.17.2.1 > DHCPREQUEST on ue0 to 255.255.255.255 port 67 > DHCPACK from 172.17.2.1 > bound to 172.17.2.111 -- renewal in 43200 seconds. > > # ifconfig ue0 > ue0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500 > options=8000b<RXCSUM,TXCSUM,VLAN_MTU,LINKSTATE> > ether 00:60:6e:42:5b:53 > inet6 fe80::260:6eff:fe42:5b53%ue0 prefixlen 64 scopeid 0x7 > inet 172.17.2.111 netmask 0xffffff00 broadcast 172.17.2.255 > nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL> > media: Ethernet autoselect (100baseTX <full-duplex>) > status: active I can see TX/RX checksum offloading is active and it successfully got a IP address via DHCP. > > > > > On Wed, Apr 10, 2013 at 4:14 AM, YongHyeon PYUN <pyunyh@gmail.com> wrote: > > > On Mon, Apr 08, 2013 at 08:45:58PM +0200, Spil Oss wrote: > > > Hi YongHyeon, > > > > > > output from verbose boot > > > > > > ugen3.2: <vendor 0x0b95> at usbus3 > > > axe0: <vendor 0x0b95 product 0x772b, rev 2.00/0.01, addr 2> on usbus3 > > > axe0: PHYADDR 0xe0:0x10 > > > miibus1: <MII bus> on axe0 > > > ukphy0: <Generic IEEE 802.3u media interface> PHY 16 on miibus1 > > > ukphy0: OUI 0x007063, model 0x0008, rev. 1 > > > ukphy0: none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto, > > > auto-flow > > > ue0: <USB Ethernet> on axe0 > > > ue0: bpf attached > > > ue0: Ethernet address: 00:60:6e:42:5b:53 > > > ue0: link state changed to UP > > > ue0: link state changed to DOWN > > > ue0: link state changed to UP > > > > AX88772B engineering sample I have still worked on latest current. > > Could you use a static IP rather than using DHCP and see whether > > that makes any difference?(Note, you have to revert your changes > > made to axe(4) before trying that). > > > > Also show me the output of 'ifconfig ue0' before/after running > > dhclient(8). > > > > > > > > Apart from what I originally described... > > > Networking does work, but not when packets pass through ipfw and nat. If > > I > > > add my ipfw rules before the divert natd rule networking works as > > expected, > > > without the SYN,ACK response packets are not accepted if I e.g. connect > > to > > > something on the axe interface. I have validated the ipfw ruleset with > > the > > > onboard realtek NIC and it then works as expected. > > > > > > # usbconfig -u 3 -a 2 dump_info > > > ugen3.2: <product 0x772b vendor 0x0b95> at usbus3, cfg=0 md=HOST spd=HIGH > > > (480Mbps) pwr=ON (200mA) > > > > > > Kind regards, > > > > > > Spil. > > > > > > > > > On Mon, Apr 8, 2013 at 8:35 AM, YongHyeon PYUN <pyunyh@gmail.com> wrote: > > > > > > > On Sun, Apr 07, 2013 at 09:14:16PM +0200, Spil Oss wrote: > > > > > Hi all, > > > > > > > > > > With checksum offloading enabled I cannot use my axe NIC (ASIX > > AX88772B). > > > > > > > > > > ifconfig ue0 -txcsum -rxcsum > > > > > will make dhclient ue0 return > > > > > > > > > > if I re-enable txcsum and rxcsum I get an immediate response from the > > > > dhcp > > > > > server. > > > > > > > > > > Tried to remove the csum features by commenting out > > > > > ifp->if_capabilities |= IFCAP_TXCSUM | IFCAP_RXCSUM; > > > > > ifp->if_hwassist = AXE_CSUM_FEATURES; > > > > > (lines 855 and 856 in /usr/src/sys/dev/usb/net/if_axe.c) > > > > > and rebuild the module. This does remove RXCSUM and TXCSUM from > > options > > > > and > > > > > behaves the same as disabling the features with ifconfig (i.e. does > > not > > > > > work) > > > > > > > > > > 10.0-CURRENT r248351 > > > > > > > > > > Hope someone can help me... Spil. > > > > > > > > Last time I tried, checksum offloading worked as expected. > > > > Would you show me the verbose dmesg output after attaching the > > > > axe(4) NIC? > > > > > >
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