diff options
| author | Arindam Nath <arindam.nath@amd.com> | 2020-02-05 21:24:20 +0530 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2020-03-13 10:04:19 -0400 |
| commit | 8a7cedef441f56bcbdd0a0e70f73510ffb72dc5d (patch) | |
| tree | c85095b7ced48e530ec3083e68f82d1db703c932 /drivers/ntb | |
| parent | 52ba447889643ea25545c521e653f956b2480489 (diff) | |
| download | linux-8a7cedef441f56bcbdd0a0e70f73510ffb72dc5d.tar.gz | |
NTB: Enable link up and down event notification
Link-Up and Link-Down events can occur irrespective of whether a data transfer is in progress or not. So we need to enable the interrupt delivery for these events early during driver load. 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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/ntb/hw/amd/ntb_hw_amd.c b/drivers/ntb/hw/amd/ntb_hw_amd.c index 150e4db11485..111f33ff2bd7 100644 --- a/drivers/ntb/hw/amd/ntb_hw_amd.c +++ b/drivers/ntb/hw/amd/ntb_hw_amd.c @@ -994,6 +994,7 @@ static enum ntb_topo amd_get_topo(struct amd_ntb_dev *ndev) static int amd_init_dev(struct amd_ntb_dev *ndev) { + void __iomem *mmio = ndev->self_mmio; struct pci_dev *pdev; int rc = 0; @@ -1015,6 +1016,10 @@ static int amd_init_dev(struct amd_ntb_dev *ndev) ndev->db_valid_mask = BIT_ULL(ndev->db_count) - 1; + /* Enable Link-Up and Link-Down event interrupts */ + ndev->int_mask &= ~(AMD_LINK_UP_EVENT | AMD_LINK_DOWN_EVENT); + writel(ndev->int_mask, mmio + AMD_INTMASK_OFFSET); + return 0; } |