Users Guide
Table Of Contents
- Table of Contents
- Preface
- Part I General CLI Information
- Part II Noninteractive Commands
- 4 General Noninteractive Commands
- 5 Fibre Channel Noninteractive Commands
- Displaying System Information (Command Line Options -g, -z)
- Command Format
- Command Summary
- -a
- -b (Flash Update; Save Flash)
- -bbcr (BB Credit Recovery)
- -c (Display HBA Parameters)
- -ctp (CT Ping Test)
- -d (Driver Update)
- -dm (Transceiver Diagnostics Monitoring Interface [DMI])
- -dp (Diagnostic Port Test)
- -dport (Diagnostics Port)
- -e (Boot Devices Configuration)
- -ei
- -f
- -fcep (Diagnostics FC Ping [ELS Echo Ping])
- -fcp (Ping Test)
- -fec (FEC Enable/Disable)
- -fg (Display Driver Persistent Binding Settings)
- -ftr (CT FTR Test)
- -fs (Driver Parameters)
- -fwdump (Firmware Dump)
- -g
- -gs (Configure Parameters [Monitoring])
- -h (Help)
- -ha (Adapter Alias [FCoE Configuration])
- -i (FC Adapter Information; FC VPD Information; FC VFC Information)
- -kl (Loopback Test)
- -kr (Read Write Buffer Test)
- -l (FC Target/LUN Information)
- -ls (Display Parameters [HBA Statistics]; Link Status)
- -m (Selective LUNs)
- -mbiv (Flash/MBI Information)
- -n (Configure HBA Parameters)
- -o (Redirect Standard Output To a File)
- -p (Target Persistent Bindings)
- -pa (Adapter Port Alias [FCoE Configuration])
- -pc (Adapter Personality Change)
- -pl (Persistent Names [udev] – Linux only)
- -q (Target Link Speed [iiDMA])
- -qos (Quality of Service [QoS])
- -r (Parameters Update; Save HBA Parameters)
- -rdp (Read Diagnostics Parameter)
- -s (Suppress Output [Silent Mode])
- -scm (Congestion Management)
- -sp (FC Board Config Update)
- -t (FC Target/LUN Information)
- -tb (Target Beacon)
- -tm (Temperature Monitor)
- -tp (Topology)
- -trace (FCE Trace)
- -u (Firmware Preload Table Update)
- -v (QCC CLI Version Information)
- -vp (Virtual Ports [NPIV])
- -x (XML Output [Legacy])
- -x2 (XML Output)
- -z (All Information)
- Part III Interactive Commands
- 6 Fibre Channel Interactive Commands
- Adapter Information
- Adapter Configuration
- Adapter Alias (-ha)
- Adapter Port Alias (-pa)
- HBA Parameters
- Target Persistent Binding (-p)
- Persistent Names (-pl)
- Boot Devices Configuration
- Virtual Ports (NPIV) (-vp)
- Target Link Speed (iiDMA)) (-q)
- Driver Parameters (-fs)
- Selective LUNs (-m)
- Quality of Service (QoS) (-qos)
- Export (Save) Configuration
- Generate Reports
- Personality (-pc)
- FEC (-fec)
- BB Credit Recovery (-bbcr)
- Adapter Updates
- Adapter Diagnostics
- Monitoring
- Refresh
- Help (-h)
- Exit
- A Revision History
- 6 Fibre Channel Interactive Commands
- Glossary
6–Fibre Channel Interactive Commands
BB Credit Stats (-bbcr)
Doc. No. TD-000947 Rev. 1
Janurary 29, 2021 Page 190 Copyright © 2021 Marvell
General keyboard shortcuts:
R - Reset all counters
ENTER - Cancel the current task
-----------------------------------------
HBA Port Errors Device Errors Reset I/O Count IOPS BPS Time
--- ----------- ------------- ----- ---------- ----- ---------- -----------
0 1 19 0 96016 1 891289 11:50:43 AM
BB Credit Stats (-bbcr)
5. Monitoring2. Fibre Channel Adapter2. BB Credit Stats
Buffer-to-buffer credit recovery (BB-CR) enables two FC peer ports (N_Port,
F_Port, or E_Port) to periodically send and receive the quantity of receiver ready
(R_RDY) signals transmitted. The BB-CR feature allows the peer port to recover
from possible R_RDY signals lost over a lossy link. BB-CR enables two FC ports
logged in with each other to recover lost buffer-to-buffer credits. These lost credits
can impact throughput, cause link resets, and disrupt traffic flow.
From the Monitoring menu, select the BB Credit Stats option, and then select an
adapter port. The BB Credit Stats Menu provides options to display the current
configuration, change the configuration, and run BB-CR statistics.
BB Credit Stats Menu
1: Info
2: Configure
3: Run
To reset all the driver statistics counters for the current session, press the R key
during run time.
Info
5. Monitoring2. Fibre Channel Adapter2. BB Credit Stats1. Info
From the BB Credit Stats Menu, select Info to view the current HBA BB-CR
statistics for the selected port, including AutoPoll (AP) and SetRate (SR). For
example:
---------------------------------------
HBA BBCR Stats
---------------------------------------
AutoPoll (AP): 10
SetRate (SR): 20