smp_rep_phy_event_list man page

smp_rep_phy_event_list — invoke REPORT PHY EVENT LIST SMP function


smp_rep_phy_event_list [--desc] [--enumerate] [--force] [--help] [--hex] [--index=IN] [--interface=PARAMS] [--long] [--nonz] [--raw] [--sa=SAS_ADDR] [--verbose] [--version] [--zero] SMP_DEVICE[,N]


Sends a SAS Serial Management Protocol (SMP) REPORT PHY EVENT LIST function request to an 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. The mpt interface uses SMP_DEVICE to identify a HBA (an SMP initiator) and needs the additional ,N to differentiate between HBAs if there are multiple present.

Reports zero or more phy event list descriptors. Each descriptor contains a phy identifier, a phy event source, a phy event (i.e. a count) and a peak value detector theshold. At least one phy event should be maintained for each phy.


Mandatory arguments to long options are mandatory for short options as well.

-d, --desc

precede each phy event descriptor with a line announcing its descriptor index  number. Index numbers start at 1.

-e, --enumerate

enumerate all of the known Phy Event Source names, one per line preceded by its value in hex. Ignores SMP_DEVICE if it is given; most other options are also ignored. Exits after displaying the names.

-f, --force

force the report to continue after the last descriptor index has been exceeded. The default action is too stop the report when the last descriptor index has been exceeded. at 1.

-h, --help

output the usage message then exit.

-H, --hex

output the response (less the CRC field) in hexadecimal.

-i, --index=IN

starting phy event list descriptor index. IN is a value between 0 and 65535. The default is 1. If IN is 0 then the response should contain no phy event list descriptors but the 'last phy event list descriptor index' and 'phy event list descriptor length' fields in the response should be set appropriately. The last point was clarified in SPL-2 revision 3.

-l, --long

prefix each phy event source string with its numeric identifier in hex. Also place "phy_id=" in front of the phy identifier number. For example: "phy_id=3: [0x1]: Invalid word count: 29"; without this option this line would be: "3: Invalid word count: 29".

-n, --nonz

only show phy events with non-zero counts or peak values. The default is to show all phy events 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 (less the CRC field) 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.

-v, --verbose

increase the verbosity of the output. Can be used multiple times

-V, --version

print the version string and then exit.


Similar information is maintained for SAS SSP target phys (e.g. on a SAS disk). It can be obtained from the Protocol Specific Port log page with the sg_logs utility.

Similar information may be obtained for SAS initiator phys (e.g. on a SAS HBA). As an example in Linux 2.6.28 error information can be found in this directory /sys/class/sas_phy/phy-4:0 (for the phy 0 in SCSI/SAS host 4).

Similar information may be obtained for SATA device phys (e.g. on a SATA disk). If there is a SAT layer between OS and the SATA device then the sg_sat_phy_event utility can fetch the information.

Conforming to

The SMP REPORT PHY EVENT LIST function was introduced in SAS-2 .


Written by Douglas Gilbert.

Reporting Bugs

Report bugs to <dgilbert at interlog dot com>.

See Also

smp_utils, smp_phy_control, smp_rep_phy_event(smp_utils) sg_logs, sg_sat_phy_event(sg3_utils)


December 2011 smp_utils-0.97 SMP_UTILS