Cisco InfiniBand 4x User's Guide download pdf (Page 74)

60 Implementing Cisco InfiniBand on IBM BladeCenter

4.1.5 Hints and tips

The following information might help you resolve connectivity issues with your Linux

installation:

򐂰 Verify that the HCA can be seen by the operating system.

If the HCA is not detected, use the linux command lspci as shown in Figure 4-36 to

ensure that the operating system can see the card. If the card is not detected, shut down

the blade and ensure that it is properly seated in the blade.

Figure 4-36 Portion of the output of the lspci command showing the InfiniBand HCA

򐂰 Verify that the HCA ports are active.

Use the command p1info or p2info as shown in Figure 4-37 to check the status of the

HCA ports to ensure that they are active.

Figure 4-37 HCA port 1 information

򐂰 Ensure that the driver is loaded.

Run the lsmod command to ensure that the driver is loaded as shown in Figure 4-38.

Figure 4-38 Portion of lsmod output showing Linux driver modules

0c:00.0 InfiniBand: Mellanox Technologies MT25208 InfiniHost III Ex (Tavor

compatibility mode) (rev 20)

[root@localhost InfiniServBasic.4.1.0.6.3]# p1info

Port 1 Info

PortState: Active PhysState: LinkUp DownDefault: Polling

LID: 0x0008 LMC: 0

Subnet: 0xfe80000000000000 GUID: 0x0005ad00000508fd

SMLID: 0x0027 SMSL: 0 RespTimeout : 33 ms SubnetTimeout: 1048 us

M_KEY: 0x0000000000000000 Lease: 15 s Protect: Readonly

MTU: Active: 2048 Supported: 2048 VL Stall: 0

LinkWidth: Active: 4x Supported: 4x Enabled: 4x

LinkSpeed: Active: 2.5Gb Supported: 2.5Gb Enabled: 2.5Gb

VLs: Active: 4+1 Supported: 4+1 HOQLife: 4096 ns

Capability 0x02010048: CR CM SL Trap

Violations: M_Key: 0 P_Key: 0 Q_Key: 0

ErrorLimits: Overrun: 0 LocalPhys: 15 DiagCode: 0x0000

P_Key Enforcement: In: Off Out: Off FilterRaw: In: Off Out: Off

[root@localhost InfiniServBasic.4.1.0.6.3]#

ipoib 141792 1 ics_sdp

ics_srp 86356 0

ics_inic 123492 0

ics_dsc 84256 3 ipoib,ics_srp,ics_inic

mt23108vpd 213296 0

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Cisco InfiniBand 4x User's Guide Page 74