diff options
| author | Arindam Nath <arindam.nath@amd.com> | 2020-02-05 18:54:25 +0300 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2020-03-13 17:04:20 +0300 |
| commit | 60ceafd151d62eba6c19c27e617269567082a17d (patch) | |
| tree | 7c9de910d02c30782c3da0ca2e782826d7ad8467 /drivers/ntb | |
| parent | fdd8281fb0bc9afddba93672e267aff1b5561215 (diff) | |
| download | linux-60ceafd151d62eba6c19c27e617269567082a17d.tar.xz | |
NTB: handle link down event correctly
Link-Up and Link-Down are mutually exclusive events.
So when we receive a Link-Down event, we should also
clear the bitmask for Link-Up event in peer_sta.
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
| -rw-r--r-- | drivers/ntb/hw/amd/ntb_hw_amd.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c index e964442ae2c3..d933a1dffdc6 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.c +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c @@ -551,8 +551,12 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) dev_info(dev, "Flush is done.\n"); break; case AMD_PEER_RESET_EVENT: - ndev->peer_sta |= AMD_PEER_RESET_EVENT; - amd_ack_smu(ndev, AMD_PEER_RESET_EVENT); + case AMD_LINK_DOWN_EVENT: + ndev->peer_sta |= status; + if (status == AMD_LINK_DOWN_EVENT) + ndev->peer_sta &= ~AMD_LINK_UP_EVENT; + + amd_ack_smu(ndev, status); /* link down first */ ntb_link_event(&ndev->ntb); @@ -563,7 +567,6 @@ static void amd_handle_event(struct amd_ntb_dev *ndev, int vec) case AMD_PEER_D3_EVENT: case AMD_PEER_PMETO_EVENT: case AMD_LINK_UP_EVENT: - case AMD_LINK_DOWN_EVENT: ndev->peer_sta |= status; amd_ack_smu(ndev, status); |