Bart Van Assche baa4b4ee29 Fixed a bug that caused trouble while handling send completions for failed data transfer commands. An example of the call stack that could be logged:
WARNING: at srpt/src/ib_srpt.c:2908 srpt_unmap_sg_to_ib_sge+0xcb/0x13e [ib_srpt]()
[ ... ]
Call Trace:
 <IRQ>  [<ffffffffa0317827>] ? srpt_unmap_sg_to_ib_sge+0xcb/0x13e [ib_srpt]
 [<ffffffff8023885a>] ? warn_slowpath_common+0x77/0x8e
 [<ffffffffa0317827>] ? srpt_unmap_sg_to_ib_sge+0xcb/0x13e [ib_srpt]
 [<ffffffffa03178f1>] ? srpt_handle_send_comp+0x57/0x7d [ib_srpt]
 [<ffffffffa0319c18>] ? srpt_send_completion+0x82/0xca [ib_srpt]
 [<ffffffffa024f646>] ? mlx4_cq_completion+0x21/0x62 [mlx4_core]
 [<ffffffffa025051e>] ? mlx4_eq_int+0x55/0x2a4 [mlx4_core]
 [<ffffffffa025077c>] ? mlx4_msi_x_interrupt+0xf/0x17 [mlx4_core]
 [<ffffffff8023cff6>] ? tasklet_action+0x64/0xb5
 [<ffffffff802675f9>] ? handle_IRQ_event+0x53/0x105
 [<ffffffff802690ac>] ? handle_edge_irq+0xda/0x11a
 [<ffffffff8020db65>] ? handle_irq+0x81/0x8a
 [<ffffffff8020d399>] ? do_IRQ+0x57/0xbf
 [<ffffffff8020c2d3>] ? ret_from_intr+0x0/0xa
 <EOI>  [<ffffffff80211ca6>] ? mwait_idle+0xa3/0xd1
 [<ffffffff8051ac1a>] ? notifier_call_chain+0x29/0x4c
 [<ffffffff8020aa61>] ? cpu_idle+0x40/0x5e
---[ end trace fef4d0c17ebda700 ]---
------------[ cut here ]------------
kernel BUG at /usr/src/redhat/BUILD/kernel-2.6.30.10/arch/x86/include/asm/dma-mapping.h:104!
invalid opcode: 0000 [#1] SMP
[ ... ]

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@1866 d57e44dd-8a1f-0410-8b47-8ef2f437770f
2010-07-23 07:38:15 +00:00
2010-07-06 10:41:33 +00:00
2010-05-31 18:03:45 +00:00
2010-07-14 14:16:36 +00:00
2008-06-26 16:35:10 +00:00
2009-08-14 19:19:04 +00:00

This is the SCST development repository. It contains not a single
project SCST as one can think, but a number of them, which are divided
as the following:

1. SCST core in scst/ subdirectory

2. Administration utility for SCST core scstadmin in scstadmin/

3. Target drivers in own subdirectories qla2x00t/, iscsi-scst/, etc.

4. User space programs in usr/ subdirectory, like fileio_tgt.

5. Some various docs in doc/ subdirectory.

Those subprojects are in most cases independent from each other,
although some of them depend from the SCST core. They put in the single
repository only to simplify their development, they are released
independently.

Thus, use "make all" only if you really need to build everything.
Otherwise build only what you need, like for iSCSI-SCST:

make scst scst_install iscsi iscsi_install

For more information about each subproject see their README files.

Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net
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