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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4197 d57e44dd-8a1f-0410-8b47-8ef2f437770f
101 lines
4.0 KiB
Plaintext
101 lines
4.0 KiB
Plaintext
Next release
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------------
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Changes compared to version 2.2.0:
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- Made sure that the SCST session is unregistered after an initiator logs out.
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Due to a race condition sometimes the SCST session was not unregistered.
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- Fixed a QP use-after-free triggered by SRP logout. This could cause the
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following error messages to appear:
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ib_srpt: ***ERROR***: srpt_init_ch_qp() failed (-9)
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ib_srpt: ***ERROR***: rejected SRP_LOGIN_REQ because creating a new RDMA
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channel failed.
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- Disallowed new logins during module removal.
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Version 2.2.0 (January 26, 2012)
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-------------
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Changes compared to version 2.1.0:
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- Changed default value of the kernel module parameter srp_max_req_size from
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2116 into 4148. That last value corresponds to a table size of 255 elements.
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- "make debug2release" etc. now also affects ib_srpt.
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- Removed "thread" kernel module parameter.
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- Slightly reduced the number of IB interrupts caused by SRP traffic.
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- Fixed a bug that could cause valid logins to be rejected. The message that
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is logged in the system log if this happens is:
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ib_srpt: ***ERROR***: rejected SRP_LOGIN_REQ because creating a new RDMA
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channel failed
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- Fixed a bug that could cause unloading ib_srpt during I/O to take up to 120s.
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- Fixed a crash in the I/O context ring allocation that was triggered when
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trying to allocate more memory than available.
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- Fixed a bug that caused SRQ creation to fail when using a QLogic HCA (qib driver)
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and Linux kernel version 3.2 or later.
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- Builds again on 32-bit systems.
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Version 2.1.0 (September 8, 2011)
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-------------
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Corresponds to r3848 on the 2.1.0.x branch
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Changes compared to version 2.0.0:
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- Added support for using the HCA node GUID as the SCST target port name
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instead of ib_srpt_target_<n>.
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- Fixed a bug that could cause removing ib_srpt during I/O to hang.
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- Increased maximum RDMA completion time from 60s to 80s such that disconnecting
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an IB cable during I/O doesn't trigger complaints about IB completions that
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arrived too late.
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- Avoided that failed multipart RDMA transfers (e.g. due to disconnecting an IB
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cable) cause trouble.
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Known bugs:
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- Doesn't build on 32-bit systems.
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Version 2.0.0 (December 21, 2010)
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-------------
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Changes compared to version 1.0.0:
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- Significantly improved performance by converting the per-channel I/O context
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ring into separate receive and transmit rings.
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- Fixed a bug that could cause a task management request to cause SRP credits
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to be lost.
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- Fixed SCSI residual handling.
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Version 1.0.1 (April 28, 2009)
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-------------
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Changes compared to version 1.0.0:
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- Performance has been improved. I/O requests are now handled in soft IRQ
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context instead of on a separate thread, which drastically reduces the
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number of context switches needed for processing I/O (r594).
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- Added support for building SCST-SRPT against the OFED InfiniBand drivers
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(r814:838).
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- Compiles now without further patches on RHEL 5.x / CentOS 5.x systems (r638).
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- Compiles now against 2.6.26 and later kernels (r516).
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- Fixed incorrect SCST state used on error path (r557).
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- Fixed memory leak triggered by rejecting SRP login requests (r800).
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- Fixed kernel oops triggered by reception of an asynchronous InfiniBand event.
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Asynchronous events are triggered by e.g. resetting an InfiniBand switch or
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reconnecting an InfiniBand cable (r878:880). The call stack of the oops is
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as follows:
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queue_work+0x1a/0x20
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schedule_work+0x16/0x20
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srpt_event_handler+0xda/0xe0 [ib_srpt]
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ib_dispatch_event+0x39/0x70 [ib_core]
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mlx4_ib_process_mad+0x3e6/0x430 [mlx4_ib]
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ib_post_send_mad+0x374/0x6f0 [ib_mad]
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? futex_wake+0x105/0x120
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ib_umad_write+0x4a8/0x5c0 [ib_umad]
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vfs_write+0xcb/0x170
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sys_write+0x50/0x90
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system_call_fastpath+0x16/0x1b
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- The login information for HCA's with more than two ports is now displayed
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correctly. Note: no such devices exist yet (r799).
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Version 1.0.0 (released on July 14, 2008)
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-------------
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Almost identical to trunk r440 (only the variables SCST_DIR and EXTRA_CFLAGS
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in the Makefiles are different from trunk r440).
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