sys_image_guid: (RO) System image GUID
=============== ===========================================
What: /sys/class/infiniband/<device>/node_desc
Date: Feb, 2006
KernelVersion: v2.6.17
Contact: linux-rdma@vger.kernel.org
Description:
(RW) Update the node description with information such as the
node's hostname, so that IB network management software can tie
its view to the real world.
=============== ===============================================
lid: (RO) Port LID
rate: (RO) Port data rate (active width * active
speed)
lid_mask_count: (RO) Port LID mask count
sm_sl: (RO) Subnet manager SL for port's subnet
sm_lid: (RO) Subnet manager LID for port's subnet
state: (RO) Port state (DOWN, INIT, ARMED, ACTIVE or
ACTIVE_DEFER)
phys_state: (RO) Port physical state (Sleep, Polling,
LinkUp, etc)
cap_mask: (RO) Port capability mask. 2 bits here are
settable- IsCommunicationManagementSupported
(set when CM module is loaded) and IsSM (set
via open of issmN file).
=============== ===============================================
What: /sys/class/infiniband/<device>/ports/<port-num>/link_layer
Date: Oct, 2010
KernelVersion: v2.6.37
Contact: linux-rdma@vger.kernel.org
Description:
(RO) Link layer type information (Infiniband or Ethernet type)
symbol_error: (RO) Total number of minor link errors detected on
one or more physical lanes.
port_rcv_errors : (RO) Total number of packets containing an
error that were received on the port.
port_rcv_remote_physical_errors : (RO) Total number of packets
marked with the EBP delimiter received on the port.
port_rcv_switch_relay_errors : (RO) Total number of packets
received on the port that were discarded because they could not
be forwarded by the switch relay.
link_error_recovery: (RO) Total number of times the Port
Training state machine has successfully completed the link error
recovery process.
port_xmit_constraint_errors: (RO) Total number of packets not
transmitted from the switch physical port due to outbound raw
filtering or failing outbound partition or IP version check.
port_rcv_constraint_errors: (RO) Total number of packets
received on the switch physical port that are discarded due to
inbound raw filtering or failing inbound partition or IP version
check.
local_link_integrity_errors: (RO) The number of times that the
count of local physical errors exceeded the threshold specified
by LocalPhyErrors
excessive_buffer_overrun_errors: (RO) This counter, indicates an
input buffer overrun. It indicates possible misconfiguration of
a port, either by the Subnet Manager (SM) or by user
intervention. It can also indicate hardware issues or extremely
poor link signal integrity
**Data info**:
port_xmit_data: (RO) Total number of data octets, divided by 4
(lanes), transmitted on all VLs. This is 64 bit counter
port_rcv_data: (RO) Total number of data octets, divided by 4
(lanes), received on all VLs. This is 64 bit counter.
port_xmit_packets: (RO) Total number of packets transmitted on
all VLs from this port. This may include packets with errors. This is 64 bit counter.
port_rcv_packets: (RO) Total number of packets (this may include
packets containing Errors. This is 64 bit counter.
link_downed: (RO) Total number of times the Port Training state
machine has failed the link error recovery process and downed
the link.
unicast_rcv_packets: (RO) Total number of unicast packets,
including unicast packets containing errors.
unicast_xmit_packets: (RO) Total number of unicast packets
transmitted on all VLs from the port. This may include unicast
packets with errors.
multicast_rcv_packets: (RO) Total number of multicast packets,
including multicast packets containing errors.
multicast_xmit_packets: (RO) Total number of multicast packets
transmitted on all VLs from the port. This may include multicast
packets with errors.
**Misc info**:
port_xmit_discards: (RO) Total number of outbound packets
discarded by the port because the port is down or congested.
VL15_dropped: (RO) Number of incoming VL15 packets dropped due
to resource limitations (e.g., lack of buffers) of the port.
port_xmit_wait: (RO) The number of ticks during which the port
had data to transmit but no data was sent during the entire tick
(either because of insufficient credits or because of lack of
arbitration).
Each of these files contains the corresponding value from the
port's Performance Management PortCounters attribute, as
described in the InfiniBand Architecture Specification.
What: /sys/class/infiniband/<device-name>/hw_counters/lifespan
What: /sys/class/infiniband/<device-name>/ports/<port-num>/hw_counters/lifespan
Date: May, 2016
KernelVersion: 4.6
Contact: linux-rdma@vger.kernel.org
Description:
The optional "hw_counters" subdirectory can be under either the
parent device or the port subdirectories or both. If present,
there are a list of counters provided by the hardware. They may
match some of the counters in the counters directory, but they
often include many other counters. In addition to the various
counters, there will be a file named "lifespan" that configures
how frequently the core should update the counters when they are
being accessed (counters are not updated if they are not being
accessed). The lifespan is in milliseconds and defaults to 10
unless set to something else by the driver. Users may echo a
value between 0-10000 to the lifespan file to set the length
of time between updates in milliseconds.
What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/ndevs/<gid-index>
Date: November 29, 2015
KernelVersion: 4.4.0
Contact: linux-rdma@vger.kernel.org
Description: The net-device's name associated with the GID resides
at index <gid-index>.
What: /sys/class/infiniband/<hca>/ports/<port-number>/gid_attrs/types/<gid-index>
Date: November 29, 2015
KernelVersion: 4.4.0
Contact: linux-rdma@vger.kernel.org
Description: The RoCE type of the associated GID resides at index <gid-index>. This could either be "IB/RoCE v1"for IB and RoCE v1 based GIDs or"RoCE v2"for RoCE v2 based GIDs.
What: /sys/class/infiniband_mad/umad<N>/ibdev
What: /sys/class/infiniband_mad/umad<N>/port
What: /sys/class/infiniband_mad/issm<N>/ibdev
What: /sys/class/infiniband_mad/issm<N>/port
Date: Apr, 2005
KernelVersion: v2.6.12
Contact: linux-rdma@vger.kernel.org
Description:
Each port of each InfiniBand device has a "umad" device and an "issm" device attached. For example, a two-port HCA will have
two umad devices and two issm devices, while a switch will have
one device of each type (forswitch port 0).
======= =====================================
ibdev: (RO) Show Infiniband (IB) device name
port: (RO) Display port number
======= =====================================
What: /sys/class/infiniband_mad/abi_version
Date: Apr, 2005
KernelVersion: v2.6.12
Contact: linux-rdma@vger.kernel.org
Description:
(RO) Value is incremented if any changes are made that break
userspace ABI compatibility of umad & issm devices.
abi_version: (RO) Show ABI version of IB device specific
interfaces.
=============== ===========================================
What: /sys/class/infiniband_verbs/abi_version
Date: Sep, 2005
KernelVersion: v2.6.14
Contact: linux-rdma@vger.kernel.org
Description:
(RO) Value is incremented if any changes are made that break
userspace ABI compatibility of uverbs devices.
sysfs interface for Mellanox IB HCA low-level driver (mthca)
------------------------------------------------------------
board_id: (RO) Manufacturing board ID
=============== ===============================
What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/gids/<n>
What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/admin_guids/<n>
What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/pkeys/<n>
What: /sys/class/infiniband/mlx4_X/iov/ports/<port-num>/mcgs/
What: /sys/class/infiniband/mlx4_X/iov/ports/<pci-slot-num>/ports/<m>/gid_idx/0
What: /sys/class/infiniband/mlx4_X/iov/ports/<pci-slot-num>/ports/<m>/pkey_idx/<n>
Date: Aug, 2012
KernelVersion: v3.6.15
Contact: linux-rdma@vger.kernel.org
Description:
The sysfs iov directory is used to manage and examine the port
P_Key and guid paravirtualization. This directory is added only for the master -- slaves donot have it.
Under iov/ports, the administrator may examine the gid and P_Key
tables as they are present in the device (and as are seen in the "network view" presented to the SM).
The "pkeys"and"gids" subdirectories contain one file for each
entry in the port's P_Key or GID table respectively. For
example, ports/1/pkeys/10 contains the value at index 10 in port 1's P_Key table.
======================= ==========================================
gids/<n>: (RO) The physical port gids n = 0..127
admin_guids/<n>: (RW) Allows examining or changing the
administrative state of a given GUID
n = 0..127
pkeys/<n>: (RO) Displays the contents of the physical
key table n = 0..126
mcgs/: (RO) Multicast group table
<m>/gid_idx/0: (RO) Display the GID mapping m = 1..2
<m>/pkey_idx/<n>: (RW) Writable except for RoCE pkeys.
m = 1..2, n = 0..126
Under the iov/<pci slot number>
directories, the admin may map the index
numbers in the physical tables (as under
iov/ports) to the paravirtualized index
numbers that guests see.
For example, if the administrator, for
port 1 on guest 2 maps physical pkey
index 10 to virtual index 1, then that
guest, whenever it uses its pkey index 1, will actually be using the real pkey
index 10.
======================= ==========================================
What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/smi_enabled
What: /sys/class/infiniband/mlx4_X/iov/<pci-slot-num>/ports/<m>/enable_smi_admin
Date: May, 2014
KernelVersion: v3.15.7
Contact: linux-rdma@vger.kernel.org
Description:
Enabling QP0 on VFs for selected VF/port. By default, no VFs are
enabled for QP0 operation.
================= ==== ===========================================
smi_enabled: (RO) Indicates whether smi is currently enabled for the indicated VF/port
enable_smi_admin: (RW) Used by the admin to request that smi
capability be enabled or disabled for the
indicated VF/port. 0 = disable, 1 = enable.
================= ==== ===========================================
The requested enablement will occur at the next reset of the VF
(e.g. driver restart on the VM which owns the VF).
sysfs interface for Chelsio T4/T5 RDMA driver (cxgb4)
-----------------------------------------------------
sysfs interface for Intel IB driver qib
---------------------------------------
What: /sys/class/infiniband/qibX/version
What: /sys/class/infiniband/qibX/hw_rev
What: /sys/class/infiniband/qibX/hca_type
What: /sys/class/infiniband/qibX/board_id
What: /sys/class/infiniband/qibX/boardversion
What: /sys/class/infiniband/qibX/nctxts
What: /sys/class/infiniband/qibX/localbus_info
What: /sys/class/infiniband/qibX/tempsense
What: /sys/class/infiniband/qibX/serial
What: /sys/class/infiniband/qibX/nfreectxts
What: /sys/class/infiniband/qibX/chip_reset
Date: May, 2010
KernelVersion: v2.6.35
Contact: linux-rdma@vger.kernel.org
Description:
=============== ======================================================
version: (RO) Display version information of installed software and drivers.
hw_rev: (RO) Hardware revision number
hca_type: (RO) Host channel adapter type
board_id: (RO) Manufacturing board id
boardversion: (RO) Current version of the chip architecture
nctxts: (RO) Return the number of user ports (contexts)
available
localbus_info: (RO) Human readable localbus info
tempsense: (RO) Display temp sense registers in decimal
serial: (RO) Serial number of the HCA
nfreectxts: (RO) The number of free user ports (contexts)
available.
chip_reset: (WO) Reset the chip if possible by writing "reset" to this file. Only allowed if no user
contexts are open that use chip resources.
=============== ======================================================
What: /sys/class/infiniband/qibX/ports/<N>/sl2vl/[0-15]
Date: May, 2010
KernelVersion: v2.6.35
Contact: linux-rdma@vger.kernel.org
Description:
(RO) The directory contains 16 files numbered 0-15 that specify
the Service Level (SL). Listing the SL files returns the Virtual
Lane (VL) as programmed by the SL.
What: /sys/class/infiniband/qibX/ports/<N>/CCMgtA/cc_settings_bin
What: /sys/class/infiniband/qibX/ports/<N>/CCMgtA/cc_table_bin
Date: May, 2010
KernelVersion: v2.6.35
Contact: linux-rdma@vger.kernel.org
Description:
Per-port congestion control. Both are binary attributes.
=============== ================================================
cc_table_bin (RO) Congestion control table size followed by
table entries.
cc_settings_bin (RO) Congestion settings: port control, control
map and an array of 16 entries for the
congestion entries - increase, timer, event log
trigger threshold and the minimum injection rate
delay.
=============== ================================================
status_str: (RO) Displays information about the link state,
possible cable/switch problems, and hardware
errors. Possible states are- "Initted", "Present", "IB_link_up", "IB_configured"or "Fatal_Hardware_Error".
=============== ===============================================
=============== ===============================================
board_id: (RO) Manufacturing board id
config: (RO) Report the configuration forthis PF
qp_per_vf: (RO) Queue pairs per virtual function.
max_vf: (RO) Max virtual functions
cq_per_vf: (RO) Completion queue per virtual function
iface: (RO) Shows which network interface this usNIC
entry is associated to (visible with ifconfig).
=============== ===============================================
What: /sys/class/infiniband/usnic_X/qpn/summary
What: /sys/class/infiniband/usnic_X/qpn/context
Date: Sep, 2013
KernelVersion: v3.14
Contact: Christian Benvenuti <benve@cisco.com>,
Dave Goodell <dgoodell@cisco.com>,
linux-rdma@vger.kernel.org
Description:
[to be documented]
sysfs interface for Emulex RoCE HCA Driver
------------------------------------------
=============== ================================================
cc_table_bin (RO) CCA tables used by PSM2 Congestion control
table size followed by table entries. Binary
attribute.
cc_settings_bin (RO) Congestion settings: port control, control
map and an array of 16 entries for the
congestion entries - increase, timer, event log
trigger threshold and the minimum injection rate
delay. Binary attribute.
cc_prescan (RW) enable prescanning for faster BECN
response. Write "on" to enable and"off" to
disable.
=============== ================================================
What: /sys/class/infiniband/hfi1_X/ports/<N>/sc2vl/[0-31]
What: /sys/class/infiniband/hfi1_X/ports/<N>/sl2sc/[0-31]
What: /sys/class/infiniband/hfi1_X/ports/<N>/vl2mtu/[0-15]
Date: May, 2016
KernelVersion: v4.6
Contact: linux-rdma@vger.kernel.org
Description:
=============== ===================================================
sc2vl/: (RO) 32 files (0 - 31) used to translate sl->vl
sl2sc/: (RO) 32 files (0 - 31) used to translate sl->sc
vl2mtu/: (RO) 16 files (0 - 15) used to determine MTU for vl
=============== ===================================================
=============== ==============================================
cpu_list: (RW) List of cpus for user-process to sdma
engine assignment.
vl: (RO) Displays the virtual lane (vl) the sdma
engine maps to.
=============== ==============================================
This interface gives the user control on the affinity settings for the device. As an example, to set an sdma engine irq
affinity and thread affinity of a user processes to use the
sdma engine, which is "near" in terms of NUMA configuration, or
physical cpu location, the user will do::
to make sure that when a process runs on cpus 4,5,6, or7, and
uses vl=0, then sdma engine 3 is selected by the driver, and
also the interrupt of the sdma engine 3 is steered to cpu 3.
Similarly, when a process runs on cpus 9,10,11, or12and sets
vl=1, then engine 4 will be selected and the irq of the sdma
engine 4 is steered to cpu 8. This assumes that in the above N
is the irq number of "sdma3", and M is irq number of "sdma4" in
the /proc/interrupts file.
sysfs interface for QLogic qedr NIC Driver
------------------------------------------
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