Visible to Intel only — GUID: lsc1698069779282
Ixiasoft
Visible to Intel only — GUID: lsc1698069779282
Ixiasoft
A.2.3.2. Conditions Triggering XON Frame Transmission
The TX MAC transmits PAUSE or PFC XON frames when one of the following conditions occurs:
Client requests XON transmission—A client can explicitly request that XON frames be sent using the pause control interface signal. When i_tx_pause is deasserted, a PAUSE XON frame is sent to the Ethernet network when the current frame transmission completes. Similarly, when i_tx_pfc[n] is deasserted, a PFC frame is sent with a PFC XON message for queue n. If multiple PFC queues are deasserted, the TX MAC will pack the requests into the same PFC packet if possible.
Host (software) requests XON transmission—Resetting the pause request register triggers a request that an XON frame be sent.