On Wed, Apr 01, 2026 at 06:15:13PM +0200, Kirill A. Korinsky wrote:
> folks,
>
> I think I found the missed piece which brokes my device.
>
> Right now octeon increases ncpus after octciu_intr_establish() is called,
> and kn@ patch moves increases of ncpus into cpuattach() which happens before
> octciu_intr_establish(), so inside that it routes irq into different cpu and
> it somehow affects my setup.
>
> Attached version of the patch removes that routing irq to different cpus
> which actually doesn't work now because ncpus is 1 and % 1 is always 0.
>
> I tested it on my device and it works like a charm.
>
> Feedback? Objection? OK?
Diff looks good. My machine distributes traffic on loopback over
the 8 softnet threads. Physical interfaces do not distribute traffic
as I have no multiqueue interfaces.
I am not an octeon expert, but diff looks good to me. Does the
ncpus++ in mips64/cpu.c affect other mips architectures beside
octeon?
bluhm
hw.ncpu=16
hw.ncpufound=16
hw.ncpuonline=16
[ using 769448 bytes of bsd ELF symbol table ]
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
Copyright (c) 1995-2026 OpenBSD. All rights reserved. https://www.OpenBSD.org
OpenBSD 7.9-beta (GENERIC.MP) #0: Wed Apr 1 21:07:38 CEST 2026
[email protected]:/usr/src/sys/arch/octeon/compile/GENERIC.MP
real mem = 17179869184 (16384MB)
avail mem = 17003151360 (16215MB)
random: good seed from bootblocks
mainbus0 at root: board 20010 rev 0.20, model cavium,ebb7304
cpu0 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu0: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu1 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu1: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu2 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu2: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu3 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu3: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu4 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu4: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu5 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu5: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu6 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu6: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu7 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu7: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu8 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu8: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu9 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu9: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu10 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu10: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu11 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu11: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu12 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu12: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu13 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu13: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu14 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu14: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
cpu15 at mainbus0: CN72xx/CN73xx CPU rev 0.2 1800 MHz, CN72xx/CN73xx FPU rev 0.0
cpu15: cache L1-I 78KB 39 way D 32KB 32 way, L2 8192KB 8 way
clock0 at mainbus0: int 5
octcrypto0 at mainbus0
iobus0 at mainbus0
simplebus0 at iobus0: "soc"
octcit0 at simplebus0
"bootbus" at simplebus0 not configured
com0 at simplebus0: ns16550a, 64 byte fifo
com0: console
com1 at simplebus0: ns16550a, 64 byte fifo
com1: probed fifo depth: 0 bytes
octgpio0 at simplebus0: 32 pins, xbit 0
octsmi0 at simplebus0
octsmi1 at simplebus0
ogxnexus0 at simplebus0
ogx0 at ogxnexus0: no phy found
ogx1 at ogxnexus0: no phy found
ogx2 at ogxnexus0: no phy found
ogx3 at ogxnexus0: no phy found
ogxnexus1 at simplebus0
ogx4 at ogxnexus1: no phy found
ogx5 at ogxnexus1: no phy found
ogx6 at ogxnexus1: no phy found
ogx7 at ogxnexus1: no phy found
ogxnexus2 at simplebus0
ogx8 at ogxnexus2: SGMII, address f0:9f:c2:c3:21:68
atphy0 at ogx8 phy 1: AR8035, rev. 4
"i2c" at simplebus0 not configured
"i2c" at simplebus0 not configured
octmmc0 at simplebus0
sdmmc0 at octmmc0: 8-bit, mmc high-speed
sdmmc1 at octmmc0: 8-bit, mmc high-speed
"spi" at simplebus0 not configured
octxctl0 at simplebus0: DWC3 rev 0x280a
xhci0 at octxctl0, xHCI 1.0
usb0 at xhci0: USB revision 3.0
uhub0 at usb0 configuration 1 interface 0 "Generic xHCI root hub" rev 3.00/1.00
addr 1
octxctl1 at simplebus0: DWC3 rev 0x280a
xhci1 at octxctl1, xHCI 1.0
usb1 at xhci1: USB revision 3.0
uhub1 at usb1 configuration 1 interface 0 "Generic xHCI root hub" rev 3.00/1.00
addr 1
"ocla0" at simplebus0 not configured
"ocla1" at simplebus0 not configured
"ocla2" at simplebus0 not configured
"ocla3" at simplebus0 not configured
"ocla4" at simplebus0 not configured
"vrm0" at simplebus0 not configured
octrng0 at iobus0 base 0x1400000000000 irq 0
octpcie0 at iobus0: 4 ports
octpcie0 port 0: reset timeout
octpcie0 port 1: reset timeout
octpcie0 port 2: reset timeout
octpcie0 port 3: reset timeout
uhub2 at uhub1 port 1 configuration 1 interface 0 "Genesys Logic USB2.0 Hub"
rev 2.00/88.32 addr 2
umass0 at uhub2 port 1 configuration 1 interface 0 "Ugreen Ugreen Storage
Device" rev 2.10/1.00 addr 3
umass0: using SCSI over Bulk-Only
scsibus0 at umass0: 2 targets, initiator 0
sd0 at scsibus0 targ 1 lun 0: <CT250MX5, 00SSD1, 0> serial.174c115326A1EE836094
sd0: 238475MB, 512 bytes/sector, 488397168 sectors
ugen0 at uhub2 port 4 "Atheros Communications product 0x3004" rev 1.10/0.01
addr 4
scsibus1 at sdmmc0: 2 targets, initiator 0
sd1 at scsibus1 targ 1 lun 0: <Sandisk, SEM04G, 0000> removable
sd1: 3776MB, 512 bytes/sector, 7733248 sectors
sdmmc1: can't enable card
vscsi0 at root
scsibus2 at vscsi0: 256 targets
softraid0 at root
scsibus3 at softraid0: 256 targets
root on sd0a (a23a1264f77e0cf5.a) swap on sd0b dump on sd0b
WARNING: CHECK AND RESET THE DATE!
