BSD 2.11 - man page for hy (bsd section 4)
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hy - Network Systems Hyperchannel interface
NHY hy_controllers # Hyperchannel
The hy interface provides access to a Network Systems Corporation Hyperchannel Adapter.
The network to which the interface is attached is specified at boot time with an SIOCSI-
FADDR ioctl. The host's address is discovered by reading the adapter status register.
The interface will not transmit or receive packets until the network number is known.
hy%d: unit number 0x%x port %d type %x microcode level 0x%x. Identifies the device during
hy%d: can't handle af%d. The interface was handed a message with addresses formatted in
an unsuitable address family; the packet was dropped.
hy%d: can't initialize. The interface was unable to allocate UNIBUS resources. This is
usually due to having too many network devices on an 11/750 where there are only 3
buffered data paths.
hy%d: NEX - Non Existent Memory. Non existent memory error returned from hardware.
hy%d: BAR overflow. Bus address register overflow error returned from hardware.
hy%d: Power Off bit set, trying to reset. Adapter has lost power, driver will reset the
bit and see if power is still out in the adapter.
hy%d: Power Off Error, network shutdown. Power was really off in the adapter, network
connections are dropped. Software does not shut down the network unless power has been
off for a while.
hy%d: RECVD MP > MPSIZE (%d). A message proper was received that is too big. Probable a
driver bug. Shouldn't happen.
hy%d: xmit error - len > hy_olen [%d > %d]. Probable driver error. Shouldn't happen.
hy%d: DRIVER BUG - INVALID STATE %d. The driver state machine reached a non-existent
state. Definite driver bug.
hy%d: watchdog timer expired. A command in the adapter has taken too long to complete.
Driver will abort and retry the command.
hy%d: adapter power restored. Software was able to reset the power off bit, indicating
that the power has been restored.
If the adapter does not respond to the status command issued during autoconfigure, the
adapter is assumed down. A reboot is required to recognize it.
The adapter power fail interrupt seems to occur sporadically when power has, in fact, not
failed. The driver will believe that power has failed only if it can not reset the power
fail latch after a ``reasonable'' time interval. These seem to appear about 2-4 times a
day on some machines. There seems to be no correlation with adapter rev level, number of
ports used etc. and whether a machine will get these ``bogus powerfails''. They don't
seem to cause any real problems so they have been ignored.
3rd Berkeley Distribution August 20, 1987 HY(4)
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