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From a2c4768ff2f0516791b80640894c5abd4eab14bf Mon Sep 17 00:00:00 2001
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From: Honggang Li <honli@redhat.com>
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Date: Tue, 27 Oct 2020 17:06:43 +0800
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Subject: [PATCH] infiniband-diags: specify the HCA name and Port number when
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run ibportstate
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A host, from which execute the enable/disable/reset command, may be
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connected to multiple InfiniBand fabrics. When the HCA name and
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Port number were not specified, the libibumad library will pick up the
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first active port it was found, which may not be wanted. Recommend to
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specific the HCA name and Port number when run ibportstate.
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On the other hand, HCA port may be locally changed without the
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knowledge of the Subnet Manager. When locally enable a disabled HCA
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port, the HCA name and Port number must be specified.
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Signed-off-by: Honggang Li <honli@redhat.com>
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---
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infiniband-diags/ibportstate.c | 4 ++--
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infiniband-diags/man/ibportstate.8.in.rst | 13 +++++++------
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2 files changed, 9 insertions(+), 8 deletions(-)
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diff --git a/infiniband-diags/ibportstate.c b/infiniband-diags/ibportstate.c
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index 17d1e1503834..7f3afb83bdb3 100644
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--- a/infiniband-diags/ibportstate.c
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+++ b/infiniband-diags/ibportstate.c
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@@ -401,8 +401,8 @@ int main(int argc, char **argv)
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"\twidth, query, down, arm, active, vls, mtu, lid, smlid, lmc,\n"
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"\tmkey, mkeylease, mkeyprot\n";
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const char *usage_examples[] = {
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- "3 1 disable\t\t\t# by lid",
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- "-G 0x2C9000100D051 1 enable\t# by guid",
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+ "-C qib0 -P 1 3 1 disable # by CA name, CA Port Number, lid, physical port number",
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+ "-C qib0 -P 1 3 1 enable # by CA name, CA Port Number, lid, physical port number",
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"-D 0 1\t\t\t# (query) by direct route",
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"3 1 reset\t\t\t# by lid",
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"3 1 speed 1\t\t\t# by lid",
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diff --git a/infiniband-diags/man/ibportstate.8.in.rst b/infiniband-diags/man/ibportstate.8.in.rst
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index da1de4c76317..309a3d191c51 100644
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--- a/infiniband-diags/man/ibportstate.8.in.rst
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+++ b/infiniband-diags/man/ibportstate.8.in.rst
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@@ -22,8 +22,9 @@ DESCRIPTION
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ibportstate allows the port state and port physical state of an IB port
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to be queried (in addition to link width and speed being validated
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relative to the peer port when the port queried is a switch port),
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-or a switch port to be disabled, enabled, or reset. It
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-also allows the link speed/width enabled on any IB port to be adjusted.
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+or a switch port to be disabled, enabled, or reset. InfiniBand HCA port
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+state may be changed locally without the knowledge of the Subnet Manager.
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+It also allows the link speed/width enabled on any IB port to be adjusted.
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OPTIONS
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=======
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@@ -34,8 +35,8 @@ OPTIONS
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mkey, mkeylease, mkeyprot
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(Default is query)
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- **enable, disable, and reset** are only allowed on switch ports (An
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- error is indicated if attempted on CA or router ports)
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+ **enable, disable, and reset** change or reset a switch or HCA port state
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+ (You must specify the CA name and Port number when locally change CA port state.)
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**off** change the port state to disable.
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@@ -114,8 +115,8 @@ EXAMPLES
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========
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::
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- ibportstate 3 1 disable # by lid
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- ibportstate -G 0x2C9000100D051 1 enable # by guid
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+ ibportstate -C qib0 -P 1 3 1 disable # by CA name, CA Port Number, lid, physical port number
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+ ibportstate -C qib0 -P 1 3 1 enable # by CA name, CA Port Number, lid, physical port number
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ibportstate -D 0 1 # (query) by direct route
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ibportstate 3 1 reset # by lid
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ibportstate 3 1 speed 1 # by lid
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--
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2.25.4
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