319282-007 Datasheet, PDF (479/586 Pages) Intel Corporation – 10 GbE Controller

Intel^® 82598 10 GbE Controller
In order to be considered a valid command, the control frame must:
1. Comply with the NC-SI header format.
2. Be targeted to a valid channel in the package via the Package ID and Channel ID fields.
For example, to target a NC channel with package ID of 0x2 and internal channel ID of 0x5, The MC
must set the channel ID inside the control frame to 0x45.
Note: Channel ID is composed of three bits of package ID and five bits of internal channel ID.
3. Contain a correct payload checksum (if used).
4. Meet any other condition defined by NC-SI.
Note: There are also commands (such as select package) targeted to the package as a whole.
These commands must use an internal channel ID of 0x1F.
For more details, refer to the NC-SI specification.
5.4.1.3.2 NC-SI Frames Receive Flow
Figure 5-12 shows the overall flow for frames received on the NC from the MC.
Figure 5-12. NC-SI Frames Receive Flow for the NC
5.4.2 NC-SI Support
5.4.2.1 Supported Features
The 82598 supports the all the mandatory features of the NC-SI specification. Table 5-20 lists the
supported commands.
Reference Number: 319282-007
Revision Number: 3.2
October 2010
Intel^® 82598 10 GbE Controller
Datasheet
479