NTB: handle link up, D0 and D3 events correctly (673dd0c2) · Commits · 戴 / test

Just like for Link-Down event, Link-Up and D3 events are also mutually exclusive to Link-Down and D0 events respectively. So we clear the bitmasks in peer_sta depending on event type. Signed-off-by:

Arindam Nath <arindam.nath@amd.com> Signed-off-by:

Jon Mason <jdmason@kudzu.us>

drivers/ntb/hw/amd/ntb_hw_amd.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -568,6 +568,11 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
		case AMD_PEER_PMETO_EVENT:
		case AMD_LINK_UP_EVENT:
		ndev->peer_sta \|= status;
		if (status == AMD_LINK_UP_EVENT)
		ndev->peer_sta &= ~AMD_LINK_DOWN_EVENT;
		else if (status == AMD_PEER_D3_EVENT)
		ndev->peer_sta &= ~AMD_PEER_D0_EVENT;

		amd_ack_smu(ndev, status);

		/* link down */
		@@ -582,6 +587,7 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec)
		dev_info(dev, "Wakeup is done.\n");

		ndev->peer_sta \|= AMD_PEER_D0_EVENT;
		ndev->peer_sta &= ~AMD_PEER_D3_EVENT;
		amd_ack_smu(ndev, AMD_PEER_D0_EVENT);

		/* start a timer to poll link status */

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