diff options
| author | Ong Boon Leong <boon.leong.ong@intel.com> | 2021-03-26 01:39:12 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2021-03-25 17:37:30 -0700 |
| commit | 7e1c520c0d2028e24cf86df811d41dc4205dc5d4 (patch) | |
| tree | 274524405be1f4bb9e4eff340cd98e8abe2a9b49 /drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c | |
| parent | 6c996e19949b34d7edebed4f6b0511145c036404 (diff) | |
net: stmmac: introduce DMA interrupt status masking per traffic direction
In preparation to make stmmac support multi-vector MSI, we introduce the
interrupt status masking according to RX, TX or RXTX. Default to use RXTX
inside stmmac_dma_interrupt(), so there is no run-time logic difference
now.
Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com>
Signed-off-by: Voon Weifeng <weifeng.voon@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c index 57a53a600aa5..d1c31200bb91 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c @@ -155,7 +155,7 @@ static void show_rx_process_state(unsigned int status) #endif int dwmac_dma_interrupt(void __iomem *ioaddr, - struct stmmac_extra_stats *x, u32 chan) + struct stmmac_extra_stats *x, u32 chan, u32 dir) { int ret = 0; /* read the status register (CSR5) */ @@ -167,6 +167,12 @@ int dwmac_dma_interrupt(void __iomem *ioaddr, show_tx_process_state(intr_status); show_rx_process_state(intr_status); #endif + + if (dir == DMA_DIR_RX) + intr_status &= DMA_STATUS_MSK_RX; + else if (dir == DMA_DIR_TX) + intr_status &= DMA_STATUS_MSK_TX; + /* ABNORMAL interrupts */ if (unlikely(intr_status & DMA_STATUS_AIS)) { if (unlikely(intr_status & DMA_STATUS_UNF)) { |