On 15 September 2016 at 19:37, Steven Chamberlain <ste...@pyro.eu.org> wrote: > Hi, > > After upgrading a Beaglebone Black from 5.9 to 6.0 GENERIC, VLANs seem > to not work any more with the onboard single-port cpsw(4) interface. > > # ifconfig vlan4 destroy > # ifconfig vlan4 create vlandev cpsw0 > ifconfig: SIOCSETVLAN: No buffer space available > > What does this mean? >
cpsw driver doesn't advertise support for extended frame size required to store a VLAN Ethernet frame. You need to lower the MTU of cpsw0 by 4 before attempting to configure the vlan4 interface. > Afterward, the VLAN interface does exist, but with wrong lladdr, > "status: no carrier" (even though the parent is active), and it seems > not possible to assign an inet address on the VLAN interface either: > > # ifconfig vlan4 > vlan4: flags=8003<UP,BROADCAST,MULTICAST> mtu 1500 > lladdr 00:00:00:00:00:00 > index 8 priority 0 llprio 3 > vlan: 4 parent interface: cpsw0 > vnetid: 4 > parent: cpsw0 > groups: vlan > status: no carrier > > dmesg follows, thank you. > > OpenBSD 6.0 (GENERIC) #286: Thu Jul 28 12:33:51 AEST 2016 > j...@armv7.jsg.id.au:/usr/src/sys/arch/armv7/compile/GENERIC > real mem = 536870912 (512MB) > avail mem = 518017024 (494MB) > mainbus0 at root: TI AM335x BeagleBone Black > cpu0 at mainbus0: ARM Cortex A8 R3 rev 2 (ARMv7 core) > cpu0: DC enabled IC enabled WB disabled EABT branch prediction enabled > cpu0: 32KB(64b/l,4way) I-cache, 32KB(64b/l,4way) wr-back D-cache > omap0 at mainbus0 > prcm0 at omap0 rev 0.2 > sitaracm0 at omap0: control module, rev 1.0 > intc0 at omap0 rev 5.0 > edma0 at omap0 rev 0.0 > dmtimer0 at omap0 rev 3.1 > dmtimer1 at omap0 rev 3.1 > omgpio0 at omap0: rev 0.1 > gpio0 at omgpio0: 32 pins > omgpio1 at omap0: rev 0.1 > gpio1 at omgpio1: 32 pins > omgpio2 at omap0: rev 0.1 > gpio2 at omgpio2: 32 pins > omgpio3 at omap0: rev 0.1 > gpio3 at omgpio3: 32 pins > simplebus0 at mainbus0: "ocp" > simplebus1 at simplebus0: "l4_wkup" > simplebus2 at simplebus1: "scm" > com0 at simplebus0: ti16750, 64 byte fifo > com0: console > tiiic0 at simplebus0 rev 0.11 > iic0 at tiiic0 > "ti,tps65217" at iic0 addr 0x24 not configured > "at,24c256" at iic0 addr 0x50 not configured > "nxp,tda998x" at iic0 addr 0x70 not configured > tiiic1 at simplebus0 rev 0.11 > iic1 at tiiic1 > "at,24c256" at iic1 addr 0x54 not configured > "at,24c256" at iic1 addr 0x55 not configured > "at,24c256" at iic1 addr 0x56 not configured > "at,24c256" at iic1 addr 0x57 not configured > ommmc0 at simplebus0 > sdmmc0 at ommmc0: 1-bit, mmc high-speed > ommmc1 at simplebus0 > sdmmc1 at ommmc1: 1-bit, mmc high-speed > omdog0 at simplebus0 rev 0.1 > cpsw0 at simplebus0: version 1.12 (0), address d0:39:72:37:8a:d3 > ukphy0 at cpsw0 phy 0: Generic IEEE 802.3u media interface, rev. 1: OUI > 0x0001f0, model 0x000f > sdmmc0: can't enable card > scsibus0 at sdmmc1: 2 targets, initiator 0 > sd0 at scsibus0 targ 1 lun 0: <Kingston, MMC04G, 0000> SCSI2 0/direct fixed > sd0: 3688MB, 512 bytes/sector, 7553024 sectors > vscsi0 at root > scsibus1 at vscsi0: 256 targets > softraid0 at root > scsibus2 at softraid0: 256 targets > boot device: sd0 > root on sd0a (3d49b2642530c3a2.a) swap on sd0b dump on sd0b > WARNING: CHECK AND RESET THE DATE! > > -- > Steven Chamberlain > ste...@pyro.eu.org >
