diff options
| author | Lendacky, Thomas <Thomas.Lendacky@amd.com> | 2016-11-10 17:10:17 -0600 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-13 00:56:26 -0500 |
| commit | 4c70dd8ac9ef88a1902b4d63dda987746a34ebc4 (patch) | |
| tree | 2a65dcd6bdaff64bddfd649161510ceeb704cff1 /drivers/net/ethernet/amd/xgbe/xgbe-common.h | |
| parent | 8d6b2e92bdadc925c9ea4d8d0c4554918357ee35 (diff) | |
| download | linux-4c70dd8ac9ef88a1902b4d63dda987746a34ebc4.tar.gz linux-4c70dd8ac9ef88a1902b4d63dda987746a34ebc4.tar.xz | |
amd-xgbe: Add support for new DMA interrupt mode
The current per channel DMA interrupt support is based on an edge
triggered interrupt that is not maskable. This results in having to call
the disable_irq/enable_irq functions in order to prevent interrupts
during napi processing. The hardware now has a way to configure the per
channel DMA interrupt that will allow for masking the interrupt which
prevents calling disable_irq/enable_irq now. This patch makes use of
this support.
Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-common.h')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-common.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-common.h b/drivers/net/ethernet/amd/xgbe/xgbe-common.h index b54862bb7fb4..516345cfe8de 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-common.h +++ b/drivers/net/ethernet/amd/xgbe/xgbe-common.h @@ -159,6 +159,8 @@ #define DMA_ISR_MACIS_WIDTH 1 #define DMA_ISR_MTLIS_INDEX 16 #define DMA_ISR_MTLIS_WIDTH 1 +#define DMA_MR_INTM_INDEX 12 +#define DMA_MR_INTM_WIDTH 2 #define DMA_MR_SWR_INDEX 0 #define DMA_MR_SWR_WIDTH 1 #define DMA_SBMR_EAME_INDEX 11 |