RadiSys ATCA-5400 RTM Specifikace stáhnout pdf (Strana 40)

Components and Subsystems

Figure 7. SAS/SATA multiplexer connections

Ethernet controllers and interfaces

Gigabit Ethernet interfaces

TheCPMusestwodualgigabitEthernetcontrollers(Intel82576EBdevices)toprovide

fourGbEports.OnecontrollerisusedforthetwoGbEBaseinterfacechannels,andthe

otherisusedforthefrontpanelandRTMEthernetports.

EachcontrollerhastwoindependentnetworkinterfacesthatsupportSerDes(serializer‐

deserializer),SGMII,orMDI(copper)protocols.Eachcontrollerisconnectedtoax4PCIe

portthatoperatesat2.5Gbpsandiscapableofnegotiatingx2andx1linkwidths.

TheEthernetcontrollersprovidevirtualizationsupportincludingPCI‐SIGsingle‐rootI/O

virtualization,VMDq2supportforupto8virtualmachinesand16TXandRXqueues.A

systemmanagementbus(SMBus)interfacesupportspass‐throughtrafficforSerial‐over‐

LANfromtheIPMC.

EachEthernetcontrollerhasaprivate128‐KBSPIEEPROMforstoringinitializationdata

andmediaaccesscontrol(MAC)addresses.Duringpowerup,theinitialconfiguration

informationforthecontrollers(includingmanagementsetupandSMBusaddresses)is

readfromtheseEEPROMs.RefertoOverviewoffirmwareupdatesonpage 87for

informationaboutupdatingtheEEPROMsoftware.

ThecontrollershavetwofullyintegratedgigabitEthernetMACandPHY(physicallayer)

ports.ThesedevicesusethePCIExpressarchitecture(revision1.0a).

SATA

Multiplexer

Port B

Port A

SAS

SATA

AMC Bay

(SAS / SATA

HDD)

Intel

ICH10R

Zone 3

Connector

J30

SAS/SATA

Port 0 Port 1

Port 2

Port 3

SATA 0

SAS 1

SAS 0

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RadiSys ATCA-5400 RTM Specifikace Strana 40