06-11-2014
In fact, that was exactly what we just did.
Disabled it in BIOS first and it did not help. Removed the SMP from OS and now it works as expected.
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LEARN ABOUT SUSE
smp_read_gpio
SMP_READ_GPIO(8) SMP_UTILS SMP_READ_GPIO(8)
NAME
smp_read_gpio - invoke READ GPIO REGISTER SMP function
SYNOPSIS
smp_read_gpio [--count=CO] [--help] [--hex] [--index=IN] [--interface=PARAMS] [--raw] [--sa=SAS_ADDR] [--type=TY] [--verbose] [--version]
SMP_DEVICE[,N]
DESCRIPTION
Sends a SAS Management Protocol (SMP) READ GPIO REGISTER request to a SMP target. The SMP target is identified by the SMP_DEVICE and the
SAS_ADDR. Depending on the interface, the SAS_ADDR may be deduced from the SMP_DEVICE. With one interface there is one SMP_DEVICE per
machine so the SMP_DEVICE,N syntax is needed to differentiate between HBAs if there are multiple present.
This function is defined in SFF-8485 ( see www.sffcommittee.com ) together with its corresponding WRITE GPIO REGISTER SMP function. The
other SMP functions are defined in SAS documents at www.t10.org . SFF-8485 defines a curious device called a "virtual SMP port" that lives
in a host bus adapter (HBA) and allows SMP to manipulate the sideband signals on wide internal cables. To stop other initiators in a
multi-initiator domain from accessing those sideband signals, the virtual SMP (target) port is not indicated in a DISCOVER response.
OPTIONS
Mandatory arguments to long options are mandatory for short options as well.
-c, --count=CO
where CO is the register count. This is the number of (4 byte) registers to request. The default value is 1.
-h, --help
output the usage message then exit.
-H, --hex
output the response in hexadecimal.
-i, --index=IN
where IN is the register index. This value is origin zero and its default value is 0. If the request succeeds, then --count=CO reg-
isters starting from --index=IN of the given --type=TY should be in the response.
-I, --interface=PARAMS
interface specific parameters. In this case "interface" refers to the path through the operating system to the SMP initiator. See
the smp_utils man page for more information.
-r, --raw
send the response to stdout in binary. All error messages are sent to stderr.
-s, --sa=SAS_ADDR
specifies the SAS address of the SMP target device. Typically this is an expander. This option may not be needed if the SMP_DEVICE
has the target's SAS address within it. The SAS_ADDR is in decimal but most SAS addresses are shown in hexadecimal. To give a number
in hexadecimal either prefix it with '0x' or put a trailing 'h' on it.
-t, --type=TY
where TY is the register type. The default value is 0 (GPIO_CFG). If the request succeeds, then --count=CO registers starting from
--index=IN of the given --type=TY should be in the response.
-v, --verbose
increase the verbosity of the output. Can be used multiple times
-V, --version
print the version string and then exit.
CONFORMING TO
The SMP READ GPIO REGISTER function is defined in SFF-8485 (see www.sffcommittee.com ) together with its corresponding WRITE GPIO REGISTER
SMP function.
AUTHORS
Written by Douglas Gilbert.
REPORTING BUGS
Report bugs to <dgilbert at interlog dot com>.
COPYRIGHT
Copyright (C) 2006-2008 Douglas Gilbert
This software is distributed under a FreeBSD license. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PUR-
POSE.
SEE ALSO
smp_utils, smp_write_gpio(smp_utils)
smp_utils-0.93 January 2008 SMP_READ_GPIO(8)