From 673dd0c24779fa9233fd600555132b5ffc1e19e4 Mon Sep 17 00:00:00 2001 From: Arindam Nath Date: Wed, 5 Feb 2020 21:24:26 +0530 Subject: NTB: handle link up, D0 and D3 events correctly 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 Signed-off-by: Jon Mason --- drivers/ntb/hw/amd/ntb_hw_amd.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'drivers/ntb/hw') diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c index d933a1dffdc6..a1c4a21c58c3 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.c +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c @@ -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 */ -- cgit v1.2.3