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ib_srpt documentation: Shortened a note.

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git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@2340 d57e44dd-8a1f-0410-8b47-8ef2f437770f
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Bart Van Assche
2010-10-02 15:56:46 +00:00
parent d45f587bdc
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7
srpt/README
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@@ -185,12 +185,7 @@ Notes about ib_srpt
* Unloading the kernel module ib_srpt while I/O is ongoing is supported.
However, it can take up to two minutes before unloading finishes. During
that time CPU usage will be high. This can happen because sometimes it
happens that ib_srpt resets the InfiniBand queue pair used for communication
with the SRP initiator but the Linux InfiniBand stack does not deliver a
completion notification for every aborted IB work request to ib_srpt.
ib_srpt then waits until the SCST core calls the ib_srpt timeout handler
for pending SCSI commands, which can take up to 2 * max_hw_pending_time.
that time CPU usage will be high.
Performance Notes - Initiator Side