NAME

/proc/pm - PM Information Pseudo-Filesystem

DESCRIPTION

/proc/pm is a pseudo-filesystem which is used to show configuration status(ex. driver version information) or statistics of device driver of PM2 communication facility. Each directory is formed as /proc/pm/[device-name]/[unit-number]/[filename].

[device-name]

device name of PM device (memory, myrinet, ethernet, shmem)

[unit-number]

unit number begin from 0

[filename]

Now, only info file is showed.

Each directory is created when a device driver is loaded. And, the /proc/pm directory entry is created when pm_memory device driver is loaded.

EXAMPLE

Here are some command results on a cluster with myrinet and quad ethernet.

comp0.pccluster.org.% ls /proc/pm/ ethernet/ memory/ myrinet/ shmem/ comp0.pccluster.org.% ls /proc/pm/ethernet/ 0/ 1/ 2/ 3/ comp0.pccluster.org.% ls /proc/pm/ethernet/3/ info comp0.pccluster.org.% cat /proc/pm/ethernet/3/info PM Ethernet 0310 Version : "$Id: pm-procfs.html,v 1.3 2002/03/07 12:03:41 kameyama Exp $" device : eth3 irq : 5 MTU : 1468 Bytes maxnodes : 128 Intreap : on Checksum : on dev error : 8504 header err : 0 header cksum err: 50 data cksum err : 5 underrun err : 0 comp0.pccluster.org.% cat /proc/pm/myrinet/0/info PM Myrinet 2.2.0 Version : "$Id: pm-procfs.html,v 1.3 2002/03/07 12:03:41 kameyama Exp $" cpu_version : 0x702 clockval : 0x33006a1 fpga_version : "Thu Dec 9 16:13:40 1999" product code : 0035 serial_number : 0000a5ad revision : 0x3 board_label : "M2M-PCI64A-2-42413" max_lanai_speed : 67 MHz sram_size : 2048 KBytes sram_addr : 0xd084c000 ISR : 0xc0200080 CRC errors : 0

Currently, following information is output for each pm device.

Direvtory	Outputs of info file
/proc/pm/memory	Driver version, Memory Usage
/proc/pm/myrinet	Driver version, Myrinet NIC information, CRC error
/proc/pm/ethernet	Driver version, Configuration status, Communication statistics
/proc/pm/shmem	Driver version

PC Cluster Consotium

$Id: pm-procfs.html,v 1.3 2002/03/07 12:03:41 kameyama Exp $