CVS commit: src/share/examples/refuse/iscsi-initiator

["Alistair G. Crooks" <agc%netbsd.org@localhost>]

Module Name:    src
Committed By:   agc
Date:           Thu Nov  8 23:12:03 UTC 2007

Update of /cvsroot/src/share/examples/refuse/iscsi-initiator
In directory ivanova.netbsd.org:/tmp/cvs-serv20251

Log Message:
Initial import of a working iSCSI initiator, which uses reFUSE and
libpuffs.

With a round of applause to Antti Kantee for helping out with puffs
debugging, and a huge thank you to Greg Oster, who has fixed numerous
bugs over the last week (unfortunately, the bugs are all mine), and
provided enthusiasm and drive.

Right now, the initiator is fulling working for only a single target,
and should be considered to be in a state of flux.  Having said that,
Greg completed a run of build.sh with the storage on the iSCSI target,
and found times to be within 0.5% of direct attached storage.  Cache
effects apply.

The initiator should be portable to everything that uses the FUSE
interface. That's right - a portable iSCSI initiator.

Storage (LUNs exported by the target) is, at the present time,
presented as a regular file called "storage". This will likely
change in the future.

% priv obj/iscsifs -u agc inspiron1300 /mnt &
[1] 13158
inspiron1300.wherever.co.uk: 10.4.0.42:3260,1 
iqn.1994-04.org.netbsd.iscsi-target:target0
inspiron1300.wherever.co.uk: 10.4.0.42:3260,1 
iqn.1994-04.org.netbsd.iscsi-target:target1

% ls -al /mnt/inspiron1300.wherever.co.uk/target0/
total 576
drwxr-xr-x  2 agc  agc        512 Nov  8 21:07 .
drwxr-xr-x  2 agc  agc        512 Nov  8 21:07 ..
lrw-r--r--  1 agc  agc         44 Nov  8 21:07 hostname -> 
inspiron1300.wherever.co.uk
lrw-r--r--  1 agc  agc          9 Nov  8 21:07 ip -> 10.4.0.42
lrw-r--r--  1 agc  agc         16 Nov  8 21:07 product -> NetBSD iSCSI
-rw-r--r--  1 agc  agc  104857088 Nov  8 21:07 storage
lrw-r--r--  1 agc  agc         43 Nov  8 21:07 targetname -> 
iqn.1994-04.org.netbsd.iscsi-target:target0
lrw-r--r--  1 agc  agc          8 Nov  8 21:07 vendor -> NetBSD
lrw-r--r--  1 agc  agc          4 Nov  8 21:07 version -> 0

FFS needs a block device, and so vnconfig can be used to sit on top of
the regular file.

% mount -vv | grep iscsifs
/dev/puffs on /mnt type puffs|refuse:iscsifs (nosuid, nodev, fsid: 
0xcb04/0x6acb, reads: sync 0 async 0, writes: sync 0 async 0)
% priv vnconfig vnd0 /mnt/inspiron1300.wherever.co.uk/target0/storage
% priv mount /dev/vnd0a /iscsi
% df
Filesystem   1K-blocks       Used      Avail %Cap Mounted on
/dev/dk0      28101396   21491182    5205146  80% /
kernfs               1          1          0 100% /kern
procfs               4          4          0 100% /proc
ptyfs                1          1          0 100% /dev/pts
/dev/puffs           0          0          0 100% /mnt
/dev/vnd0a       99214       8209      86045   8% /iscsi
% mount -vv | grep iscsi
/dev/puffs on /mnt type puffs|refuse:iscsifs (nosuid, nodev, fsid: 
0xcb04/0x6acb, reads: sync 0 async 0, writes: sync 0 async 0)
/dev/vnd0a on /iscsi type ffs (local, fsid: 0xe00/0x78b, reads: sync 1 async 0, 
writes: sync 2 async 0)


Status:

Vendor Tag:     CROOKS
Release Tags:   iscsi-initiator-base
                
N src/share/examples/refuse/iscsi-initiator/iscsifs.c
N src/share/examples/refuse/iscsi-initiator/Makefile
N src/share/examples/refuse/iscsi-initiator/iscsifs.8

No conflicts created by this import