Copyright (c) 2000 The NetBSD Foundation, Inc.
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This code is derived from software contributed to The NetBSD Foundation
by Andrew Doran.
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.Dd November 8, 2000 .Dt IOP 4 .Os .Sh NAME .Nm iop .Nd .Tn I2O adapter driver .Sh SYNOPSIS .Cd "iop* at pci? dev ? function ?" .Cd "iopsp*" at iop? tid ? .Cd "ld*" at iop? tid ? .Sh DESCRIPTION The .Nm driver provides support for .Tn PCI adapters conforming to the .Tn I2O specification, revision 1.5. .Sh IOCTL INTERFACE The following structures and constants are defined in
a dev/i2o/i2ovar.h . Note that the header
a dev/i2o/i2o.h is a prerequsite and must therefore be included beforehand. l -tag -width OTTF t Dv IOPIOCPT (struct ioppt) Submit a message to the IOP and return the reply. Note that the return value of this ioctl is not affected by completion status as indicated by the reply. d -literal struct ioppt { void *pt_msg; /* pointer to message buffer */ size_t pt_msglen; /* message buffer size in bytes */ void *pt_reply; /* pointer to reply buffer */ size_t pt_replylen; /* reply buffer size in bytes */ int pt_timo; /* completion timeout in ms */ int pt_nbufs; /* number of transfers */ struct ioppt_buf pt_bufs[IOP_MAX_MSG_XFERS]; /* transfers */ }; struct ioppt_buf { void *ptb_data; /* pointer to buffer */ size_t ptb_datalen; /* buffer size in bytes */ int ptb_out; /* non-zero if transfer is to IOP */ }; .Ed
p The minimum timeout value that may be specified is 1000ms. All other values must not exceed the .Nm driver's operational limits. t Dv IOPIOCGLCT (struct iovec) Return the .Nm driver's copy of the logical configuration table. This copy of the LCT matches the current device configuration, but is not necessarily the latest available version of the LCT. This ioctl may block while attempting to acquire a lock on the LCT, and may fail if the acquisition times out. t Dv IOPIOCGSTATUS (struct iovec) Request the latest available status record from the IOP. This special-case ioctl is provided as the I2O_EXEC_STATUS_GET message does not post replies, and can therefore not be safely issued using the IOPIOCPT ioctl. t Dv IOPIOCRECONFIG Request that the .Nm driver scan all bus ports, retrieve the latest version of the LCT, and attach or detach devices as necessary. Note that higher-level reconfiguration tasks (such as logically re-scanning SCSI busses) will not be performed by this ioctl. .El .Sh FILES l -tag -width /dev/iopn -compact t Pa /dev/iop Ns Ar u control device for IOP unit .Ar u .El .Sh SEE ALSO .Xr intro 4 , .Xr iopsp 4 , .Xr ld 4
p http://www.i2osig.org/ .Sh AUTHOR The .Nm driver was written by Andrew Doran .Aq ad (at] netbsd.org . .Sh HISTORY The .Nm driver first appeared in .Nx 1.6 .
Indexes created Mon Oct 20 10:10:01 GMT 2025