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net: stmmac: mtl rx queue enabled as dcb or avb 

This patch introduces the enabling of RX queues as DCB or as AVB based
on configuration.

Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Joao Pinto 2017-03-10 18:24:54 +00:00 committed by David S. Miller
parent 6a3a7193b2
commit 4f6046f587
3 changed files with 14 additions and 15 deletions
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2
drivers/net/ethernet/stmicro/stmmac/common.h
View File

@ -457,7 +457,7 @@ struct stmmac_ops {
/* Enable and verify that the IPC module is supported */
int (*rx_ipc)(struct mac_device_info *hw);
/* Enable RX Queues */
void (*rx_queue_enable)(struct mac_device_info *hw, u32 queue);
void (*rx_queue_enable)(struct mac_device_info *hw, u8 mode, u32 queue);
/* Program RX Algorithms */
void (*prog_mtl_rx_algorithms)(struct mac_device_info *hw, u32 rx_alg);
/* Program TX Algorithms */

6
drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
View File

@ -59,13 +59,17 @@ static void dwmac4_core_init(struct mac_device_info *hw, int mtu)
writel(value, ioaddr + GMAC_INT_EN);
}
static void dwmac4_rx_queue_enable(struct mac_device_info *hw, u32 queue)
static void dwmac4_rx_queue_enable(struct mac_device_info *hw,
u8 mode, u32 queue)
{
void __iomem *ioaddr = hw->pcsr;
u32 value = readl(ioaddr + GMAC_RXQ_CTRL0);
value &= GMAC_RX_QUEUE_CLEAR(queue);
if (mode == MTL_RX_AVB)
value |= GMAC_RX_AV_QUEUE_ENABLE(queue);
else if (mode == MTL_RX_DCB)
value |= GMAC_RX_DCB_QUEUE_ENABLE(queue);
writel(value, ioaddr + GMAC_RXQ_CTRL0);
}

19
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -1256,19 +1256,14 @@ static void free_dma_desc_resources(struct stmmac_priv *priv)
*/
static void stmmac_mac_enable_rx_queues(struct stmmac_priv *priv)
{
int rx_count = priv->dma_cap.number_rx_queues;
int queue = 0;
u32 rx_queues_count = priv->plat->rx_queues_to_use;
int queue;
u8 mode;
/* If GMAC does not have multiple queues, then this is not necessary*/
if (rx_count == 1)
return;
/**
* If the core is synthesized with multiple rx queues / multiple
* dma channels, then rx queues will be disabled by default.
* For now only rx queue 0 is enabled.
*/
priv->hw->mac->rx_queue_enable(priv->hw, queue);
for (queue = 0; queue < rx_queues_count; queue++) {
mode = priv->plat->rx_queues_cfg[queue].mode_to_use;
priv->hw->mac->rx_queue_enable(priv->hw, mode, queue);
}
}
/**