diff options
| author | Joao Pinto <Joao.Pinto@synopsys.com> | 2017-03-10 18:24:55 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-12 23:41:03 -0700 |
| commit | d43042f4da3e1c2e4ccac3b1d9153cb0798533a4 (patch) | |
| tree | b17835d1c4ebd5d2a66ad8fe1cde16f7c0328eb5 /drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | |
| parent | 4f6046f5872c7db6a152b923cee21c37a04d56b8 (diff) | |
net: stmmac: mapping mtl rx to dma channel
This patch adds the functionality of RX queue to dma channel mapping
based on configuration.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c index 21a696eda9ce..e9b153f75538 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c @@ -131,6 +131,30 @@ static void dwmac4_set_mtl_tx_queue_weight(struct mac_device_info *hw, writel(value, ioaddr + MTL_TXQX_WEIGHT_BASE_ADDR(queue)); } +static void dwmac4_map_mtl_dma(struct mac_device_info *hw, u32 queue, u32 chan) +{ + void __iomem *ioaddr = hw->pcsr; + u32 value; + + if (queue < 4) + value = readl(ioaddr + MTL_RXQ_DMA_MAP0); + else + value = readl(ioaddr + MTL_RXQ_DMA_MAP1); + + if (queue == 0 || queue == 4) { + value &= ~MTL_RXQ_DMA_Q04MDMACH_MASK; + value |= MTL_RXQ_DMA_Q04MDMACH(chan); + } else { + value &= ~MTL_RXQ_DMA_QXMDMACH_MASK(queue); + value |= MTL_RXQ_DMA_QXMDMACH(chan, queue); + } + + if (queue < 4) + writel(value, ioaddr + MTL_RXQ_DMA_MAP0); + else + writel(value, ioaddr + MTL_RXQ_DMA_MAP1); +} + static void dwmac4_dump_regs(struct mac_device_info *hw, u32 *reg_space) { void __iomem *ioaddr = hw->pcsr; @@ -521,6 +545,7 @@ static const struct stmmac_ops dwmac4_ops = { .prog_mtl_rx_algorithms = dwmac4_prog_mtl_rx_algorithms, .prog_mtl_tx_algorithms = dwmac4_prog_mtl_tx_algorithms, .set_mtl_tx_queue_weight = dwmac4_set_mtl_tx_queue_weight, + .map_mtl_to_dma = dwmac4_map_mtl_dma, .dump_regs = dwmac4_dump_regs, .host_irq_status = dwmac4_irq_status, .flow_ctrl = dwmac4_flow_ctrl, |