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path: root/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
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Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac_main.c')
-rw-r--r--drivers/net/ethernet/stmicro/stmmac/stmmac_main.c82
1 files changed, 64 insertions, 18 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index ec363e19cd79..c4e4a5328951 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1285,14 +1285,20 @@ static void stmmac_mac_enable_rx_queues(struct stmmac_priv *priv)
*/
static void stmmac_dma_operation_mode(struct stmmac_priv *priv)
{
+ u32 rx_channels_count = priv->plat->rx_queues_to_use;
+ u32 tx_channels_count = priv->plat->tx_queues_to_use;
int rxfifosz = priv->plat->rx_fifo_size;
+ u32 txmode = 0;
+ u32 rxmode = 0;
+ u32 chan = 0;
if (rxfifosz == 0)
rxfifosz = priv->dma_cap.rx_fifo_size;
- if (priv->plat->force_thresh_dma_mode)
- priv->hw->dma->dma_mode(priv->ioaddr, tc, tc, rxfifosz);
- else if (priv->plat->force_sf_dma_mode || priv->plat->tx_coe) {
+ if (priv->plat->force_thresh_dma_mode) {
+ txmode = tc;
+ rxmode = tc;
+ } else if (priv->plat->force_sf_dma_mode || priv->plat->tx_coe) {
/*
* In case of GMAC, SF mode can be enabled
* to perform the TX COE in HW. This depends on:
@@ -1300,12 +1306,26 @@ static void stmmac_dma_operation_mode(struct stmmac_priv *priv)
* 2) There is no bugged Jumbo frame support
* that needs to not insert csum in the TDES.
*/
- priv->hw->dma->dma_mode(priv->ioaddr, SF_DMA_MODE, SF_DMA_MODE,
- rxfifosz);
+ txmode = SF_DMA_MODE;
+ rxmode = SF_DMA_MODE;
priv->xstats.threshold = SF_DMA_MODE;
- } else
- priv->hw->dma->dma_mode(priv->ioaddr, tc, SF_DMA_MODE,
+ } else {
+ txmode = tc;
+ rxmode = SF_DMA_MODE;
+ }
+
+ /* configure all channels */
+ if (priv->synopsys_id >= DWMAC_CORE_4_00) {
+ for (chan = 0; chan < rx_channels_count; chan++)
+ priv->hw->dma->dma_rx_mode(priv->ioaddr, rxmode, chan,
+ rxfifosz);
+
+ for (chan = 0; chan < tx_channels_count; chan++)
+ priv->hw->dma->dma_tx_mode(priv->ioaddr, txmode, chan);
+ } else {
+ priv->hw->dma->dma_mode(priv->ioaddr, txmode, rxmode,
rxfifosz);
+ }
}
/**
@@ -1444,6 +1464,34 @@ static void stmmac_tx_err(struct stmmac_priv *priv)
}
/**
+ * stmmac_set_dma_operation_mode - Set DMA operation mode by channel
+ * @priv: driver private structure
+ * @txmode: TX operating mode
+ * @rxmode: RX operating mode
+ * @chan: channel index
+ * Description: it is used for configuring of the DMA operation mode in
+ * runtime in order to program the tx/rx DMA thresholds or Store-And-Forward
+ * mode.
+ */
+static void stmmac_set_dma_operation_mode(struct stmmac_priv *priv, u32 txmode,
+ u32 rxmode, u32 chan)
+{
+ int rxfifosz = priv->plat->rx_fifo_size;
+
+ if (rxfifosz == 0)
+ rxfifosz = priv->dma_cap.rx_fifo_size;
+
+ if (priv->synopsys_id >= DWMAC_CORE_4_00) {
+ priv->hw->dma->dma_rx_mode(priv->ioaddr, rxmode, chan,
+ rxfifosz);
+ priv->hw->dma->dma_tx_mode(priv->ioaddr, txmode, chan);
+ } else {
+ priv->hw->dma->dma_mode(priv->ioaddr, txmode, rxmode,
+ rxfifosz);
+ }
+}
+
+/**
* stmmac_dma_interrupt - DMA ISR
* @priv: driver private structure
* Description: this is the DMA ISR. It is called by the main ISR.
@@ -1452,11 +1500,8 @@ static void stmmac_tx_err(struct stmmac_priv *priv)
*/
static void stmmac_dma_interrupt(struct stmmac_priv *priv)
{
+ u32 chan = STMMAC_CHAN0;
int status;
- int rxfifosz = priv->plat->rx_fifo_size;
-
- if (rxfifosz == 0)
- rxfifosz = priv->dma_cap.rx_fifo_size;
status = priv->hw->dma->dma_interrupt(priv->ioaddr, &priv->xstats);
if (likely((status & handle_rx)) || (status & handle_tx)) {
@@ -1471,11 +1516,12 @@ static void stmmac_dma_interrupt(struct stmmac_priv *priv)
(tc <= 256)) {
tc += 64;
if (priv->plat->force_thresh_dma_mode)
- priv->hw->dma->dma_mode(priv->ioaddr, tc, tc,
- rxfifosz);
+ stmmac_set_dma_operation_mode(priv->ioaddr,
+ tc, tc, chan);
else
- priv->hw->dma->dma_mode(priv->ioaddr, tc,
- SF_DMA_MODE, rxfifosz);
+ stmmac_set_dma_operation_mode(priv->ioaddr, tc,
+ SF_DMA_MODE, chan);
+
priv->xstats.threshold = tc;
}
} else if (unlikely(status == tx_hard_error))
@@ -1749,6 +1795,9 @@ static void stmmac_mtl_configuration(struct stmmac_priv *priv)
/* Enable MAC RX Queues */
if (rx_queues_count > 1 && priv->hw->mac->rx_queue_enable)
stmmac_mac_enable_rx_queues(priv);
+
+ /* Set the HW DMA mode and the COE */
+ stmmac_dma_operation_mode(priv);
}
/**
@@ -1812,9 +1861,6 @@ static int stmmac_hw_setup(struct net_device *dev, bool init_ptp)
else
stmmac_set_mac(priv->ioaddr, true);
- /* Set the HW DMA mode and the COE */
- stmmac_dma_operation_mode(priv);
-
stmmac_mmc_setup(priv);
if (init_ptp) {