From: Bart Van Assche <bvanassche-HInyCGIudOg@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Cc: linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
David Dillow <dillowda-1Heg1YXhbW8@public.gmane.org>,
Roland Dreier <roland-BHEL68pLQRGGvPXPguhicg@public.gmane.org>,
Vu Pham <vuhuong-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Subject: [PATCH 00/14] Make ib_srp better suited for H.A. purposes
Date: Thu, 1 Dec 2011 19:54:25 +0100 [thread overview]
Message-ID: <201112011954.25811.bvanassche@acm.org> (raw)
This patch series makes the ib_srp driver better suited for use in a H.A.
setup because:
- Switchover without triggering read or write errors become possible. Such
errors are bad because these can make a filesystem switch to read-only
mode.
- A ping mechanism has been added that allows to reduce the switch-over
time greatly.
- Disconnecting from a target without unloading ib_srp becomes possible.
- Switchover can be triggered explicitly by deleting an initiator device.
Where possible these mechanisms have been modelled after similar
functionality in the open-iscsi kernel code.
According to the measurements I ran these patches do not affect ib_srp
performance.
The individual patches are:
0001-ib_srp-Introduce-pr_fmt.patch
0002-ib_srp-Consolidate-repetitive-sysfs-code.patch
0003-ib_srp-Disallow-duplicate-logins.patch
0004-ib_srp-Set-block-layer-timeout.patch
0005-ib_srp-Avoid-that-late-SRP-replies-cause-trouble.patch
0006-ib_srp-Micro-optimize-completion-handlers.patch
0007-ib_srp-Introduce-srp_handle_qp_err.patch
0008-srp_transport-Document-sysfs-attributes.patch
0009-srp_transport-Fix-atttribute-registration-race.patch
0010-srp_transport-Simplify-attribute-initialization-code.patch
0011-ib_srp-Document-sysfs-attributes.patch
0012-ib_srp-Rework-error-handling.patch
0013-ib_srp-Implement-transport-layer-ping.patch
0014-ib_srp-Allow-SRP-disconnect-through-sysfs.patch
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next reply other threads:[~2011-12-01 18:54 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-12-01 18:54 Bart Van Assche [this message]
[not found] ` <201112011954.25811.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-01 18:55 ` [PATCH 01/14] ib_srp: Introduce pr_fmt() Bart Van Assche
[not found] ` <201112011955.47198.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-01 23:40 ` David Dillow
2011-12-01 18:57 ` [PATCH 02/14] ib_srp: Consolidate repetitive sysfs code Bart Van Assche
[not found] ` <201112011957.19892.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-15 18:26 ` David Dillow
2011-12-01 18:58 ` [PATCH 03/14] ib_srp: Disallow duplicate logins Bart Van Assche
[not found] ` <201112011958.17339.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-15 19:08 ` David Dillow
[not found] ` <1323976101.16703.42.camel-FqX9LgGZnHWDB2HL1qBt2PIbXMQ5te18@public.gmane.org>
2011-12-18 19:20 ` Bart Van Assche
[not found] ` <CAO+b5-r6dHt-vmbNjeD4zvcAaRVqhiEm5eZF7hgF6ei35kqjdQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-18 21:40 ` David Dillow
[not found] ` <1324244446.17849.39.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-19 10:31 ` Bart Van Assche
2011-12-01 18:59 ` [PATCH 04/14] ib_srp: Set block layer timeout Bart Van Assche
[not found] ` <201112011959.11956.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-15 19:37 ` David Dillow
[not found] ` <1323977841.16703.57.camel-FqX9LgGZnHWDB2HL1qBt2PIbXMQ5te18@public.gmane.org>
2011-12-17 17:50 ` Bart Van Assche
[not found] ` <CAO+b5-p9FQVvdVZtUvRJgMW6qhcnUKrp4RhCch1Hnt8JsjS5qQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-17 22:39 ` David Dillow
2011-12-17 22:03 ` Or Gerlitz
[not found] ` <CAJZOPZKQ4rg6D=ZDt2q+aJbsNAQbgqgh19FmGC5Vi6_EQ4ROFQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-17 22:39 ` David Dillow
2011-12-18 11:53 ` Bart Van Assche
2011-12-01 19:00 ` [PATCH 05/14] ib_srp: Avoid that late SRP replies cause trouble Bart Van Assche
[not found] ` <201112012000.04427.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-15 20:03 ` David Dillow
2011-12-01 19:02 ` [PATCH 06/14] ib_srp: Micro-optimize completion handlers Bart Van Assche
[not found] ` <201112012002.17829.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-01 21:35 ` chas williams - CONTRACTOR
[not found] ` <20111201163539.572ca669-KCdNrDJlFBBhNwqIksvPR6qiWZVw4kCD+aIohriVLy8@public.gmane.org>
2011-12-01 23:32 ` David Dillow
[not found] ` <1322782369.11664.5.camel-FqX9LgGZnHWDB2HL1qBt2PIbXMQ5te18@public.gmane.org>
2011-12-12 11:41 ` Bart Van Assche
[not found] ` <CAO+b5-pFBEQybN+01heAzr=_dNCb7Sr7ri_o_hF1MnOeX4_idQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-12 23:12 ` David Dillow
2011-12-01 19:02 ` [PATCH 07/14] ib_srp: Introduce srp_handle_qp_err() Bart Van Assche
[not found] ` <201112012002.56307.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-18 23:55 ` David Dillow
2011-12-01 19:08 ` [PATCH 10/14] srp_transport: Simplify attribute initialization code Bart Van Assche
[not found] ` <201112012008.00502.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-19 0:07 ` David Dillow
[not found] ` <1324253243.17849.45.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-20 10:21 ` Bart Van Assche
2011-12-21 3:23 ` David Dillow
2011-12-01 19:09 ` [PATCH 11/14] ib_srp: Document sysfs attributes Bart Van Assche
[not found] ` <201112012009.12815.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-19 0:33 ` David Dillow
[not found] ` <1324254811.17849.65.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-19 8:46 ` Bart Van Assche
[not found] ` <CAO+b5-rb=Gtch0UCZPwTSCHhOdsUBecSpgYjaLvj5pbo9_1AeQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-19 21:27 ` David Dillow
2011-12-01 19:11 ` [PATCH 13/14] ib_srp: Implement transport layer ping Bart Van Assche
2011-12-19 0:50 ` David Dillow
2011-12-19 10:16 ` Bart Van Assche
2011-12-19 22:32 ` David Dillow
[not found] ` <1324333931.7043.52.camel-FqX9LgGZnHWDB2HL1qBt2PIbXMQ5te18@public.gmane.org>
2011-12-20 10:13 ` Bart Van Assche
[not found] ` <CAO+b5-qLxmcXCCxA8+bPYsinjr1eqCDO2JUJbjgVr59N55CU1Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-21 2:32 ` David Dillow
2011-12-20 10:27 ` Bart Van Assche
2011-12-21 3:05 ` David Dillow
[not found] ` <1324436736.7621.38.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-21 14:07 ` Bart Van Assche
2011-12-23 22:34 ` David Dillow
[not found] ` <1324679698.3004.12.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-23 22:56 ` Mike Christie
2011-12-24 20:07 ` David Dillow
2011-12-26 19:39 ` Bart Van Assche
2011-12-28 23:53 ` David Dillow
2011-12-26 20:01 ` Bart Van Assche
2011-12-01 19:05 ` [PATCH 08/14] srp_transport: Document sysfs attributes Bart Van Assche
2011-12-01 19:06 ` [PATCH 09/14] srp_transport: Fix attribute registration Bart Van Assche
[not found] ` <201112012006.50445.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-15 20:09 ` David Dillow
2011-12-01 19:10 ` [PATCH 12/14] ib_srp: Rework error handling Bart Van Assche
[not found] ` <201112012010.37276.bvanassche-HInyCGIudOg@public.gmane.org>
2011-12-15 20:20 ` David Dillow
2011-12-19 3:36 ` David Dillow
2011-12-19 10:38 ` Bart Van Assche
2011-12-19 22:51 ` David Dillow
[not found] ` <1324335083.7043.66.camel-FqX9LgGZnHWDB2HL1qBt2PIbXMQ5te18@public.gmane.org>
2011-12-20 9:01 ` Bart Van Assche
[not found] ` <CAO+b5-qF2taG0B4n9SBwqnuh0wajH5fXFLTb-VAaDrfT9TZ6aQ-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2011-12-21 3:33 ` David Dillow
[not found] ` <1324438387.7621.53.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-21 13:26 ` Bart Van Assche
[not found] ` <1324265791.17849.92.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-26 19:13 ` Bart Van Assche
2011-12-01 19:13 ` [PATCH 14/14] ib_srp: Allow SRP disconnect through sysfs Bart Van Assche
2011-12-19 4:03 ` David Dillow
[not found] ` <1324267414.17849.98.camel-1q1vX8mYZiGLUyTwlgNVppKKF0rrzTr+@public.gmane.org>
2011-12-19 9:04 ` Bart Van Assche
2011-12-01 23:26 ` [PATCH 00/14] Make ib_srp better suited for H.A. purposes David Dillow
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