diff options
Diffstat (limited to 'drivers/net/ethernet/xilinx')
| -rw-r--r-- | drivers/net/ethernet/xilinx/ll_temac_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 2 | ||||
| -rw-r--r-- | drivers/net/ethernet/xilinx/xilinx_emaclite.c | 92 |
3 files changed, 40 insertions, 63 deletions
diff --git a/drivers/net/ethernet/xilinx/ll_temac_main.c b/drivers/net/ethernet/xilinx/ll_temac_main.c index b88121f240ca..2166e879a096 100644 --- a/drivers/net/ethernet/xilinx/ll_temac_main.c +++ b/drivers/net/ethernet/xilinx/ll_temac_main.c @@ -36,6 +36,7 @@ #include <linux/netdevice.h> #include <linux/of.h> #include <linux/of_device.h> +#include <linux/of_irq.h> #include <linux/of_mdio.h> #include <linux/of_platform.h> #include <linux/of_address.h> @@ -297,6 +298,12 @@ static int temac_dma_bd_init(struct net_device *ndev) lp->rx_bd_p + (sizeof(*lp->rx_bd_v) * (RX_BD_NUM - 1))); lp->dma_out(lp, TX_CURDESC_PTR, lp->tx_bd_p); + /* Init descriptor indexes */ + lp->tx_bd_ci = 0; + lp->tx_bd_next = 0; + lp->tx_bd_tail = 0; + lp->rx_bd_ci = 0; + return 0; out: @@ -1010,7 +1017,7 @@ static int temac_of_probe(struct platform_device *op) platform_set_drvdata(op, ndev); SET_NETDEV_DEV(ndev, &op->dev); ndev->flags &= ~IFF_MULTICAST; /* clear multicast */ - ndev->features = NETIF_F_SG | NETIF_F_FRAGLIST; + ndev->features = NETIF_F_SG; ndev->netdev_ops = &temac_netdev_ops; ndev->ethtool_ops = &temac_ethtool_ops; #if 0 diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c index b2ff038d6d20..f9293da19e26 100644 --- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c +++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c @@ -1486,7 +1486,7 @@ static int axienet_of_probe(struct platform_device *op) SET_NETDEV_DEV(ndev, &op->dev); ndev->flags &= ~IFF_MULTICAST; /* clear multicast */ - ndev->features = NETIF_F_SG | NETIF_F_FRAGLIST; + ndev->features = NETIF_F_SG; ndev->netdev_ops = &axienet_netdev_ops; ndev->ethtool_ops = &axienet_ethtool_ops; diff --git a/drivers/net/ethernet/xilinx/xilinx_emaclite.c b/drivers/net/ethernet/xilinx/xilinx_emaclite.c index 4c619ea5189f..fefb8cd5eb65 100644 --- a/drivers/net/ethernet/xilinx/xilinx_emaclite.c +++ b/drivers/net/ethernet/xilinx/xilinx_emaclite.c @@ -31,7 +31,7 @@ #define DRIVER_NAME "xilinx_emaclite" /* Register offsets for the EmacLite Core */ -#define XEL_TXBUFF_OFFSET 0x0 /* Transmit Buffer */ +#define XEL_TXBUFF_OFFSET 0x0 /* Transmit Buffer */ #define XEL_MDIOADDR_OFFSET 0x07E4 /* MDIO Address Register */ #define XEL_MDIOWR_OFFSET 0x07E8 /* MDIO Write Data Register */ #define XEL_MDIORD_OFFSET 0x07EC /* MDIO Read Data Register */ @@ -63,13 +63,13 @@ #define XEL_MDIOCTRL_MDIOEN_MASK 0x00000008 /* MDIO Enable */ /* Global Interrupt Enable Register (GIER) Bit Masks */ -#define XEL_GIER_GIE_MASK 0x80000000 /* Global Enable */ +#define XEL_GIER_GIE_MASK 0x80000000 /* Global Enable */ /* Transmit Status Register (TSR) Bit Masks */ -#define XEL_TSR_XMIT_BUSY_MASK 0x00000001 /* Tx complete */ -#define XEL_TSR_PROGRAM_MASK 0x00000002 /* Program the MAC address */ -#define XEL_TSR_XMIT_IE_MASK 0x00000008 /* Tx interrupt enable bit */ -#define XEL_TSR_XMIT_ACTIVE_MASK 0x80000000 /* Buffer is active, SW bit +#define XEL_TSR_XMIT_BUSY_MASK 0x00000001 /* Tx complete */ +#define XEL_TSR_PROGRAM_MASK 0x00000002 /* Program the MAC address */ +#define XEL_TSR_XMIT_IE_MASK 0x00000008 /* Tx interrupt enable bit */ +#define XEL_TSR_XMIT_ACTIVE_MASK 0x80000000 /* Buffer is active, SW bit * only. This is not documented * in the HW spec */ @@ -77,21 +77,21 @@ #define XEL_TSR_PROG_MAC_ADDR (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_PROGRAM_MASK) /* Receive Status Register (RSR) */ -#define XEL_RSR_RECV_DONE_MASK 0x00000001 /* Rx complete */ -#define XEL_RSR_RECV_IE_MASK 0x00000008 /* Rx interrupt enable bit */ +#define XEL_RSR_RECV_DONE_MASK 0x00000001 /* Rx complete */ +#define XEL_RSR_RECV_IE_MASK 0x00000008 /* Rx interrupt enable bit */ /* Transmit Packet Length Register (TPLR) */ -#define XEL_TPLR_LENGTH_MASK 0x0000FFFF /* Tx packet length */ +#define XEL_TPLR_LENGTH_MASK 0x0000FFFF /* Tx packet length */ /* Receive Packet Length Register (RPLR) */ -#define XEL_RPLR_LENGTH_MASK 0x0000FFFF /* Rx packet length */ +#define XEL_RPLR_LENGTH_MASK 0x0000FFFF /* Rx packet length */ -#define XEL_HEADER_OFFSET 12 /* Offset to length field */ -#define XEL_HEADER_SHIFT 16 /* Shift value for length */ +#define XEL_HEADER_OFFSET 12 /* Offset to length field */ +#define XEL_HEADER_SHIFT 16 /* Shift value for length */ /* General Ethernet Definitions */ -#define XEL_ARP_PACKET_SIZE 28 /* Max ARP packet size */ -#define XEL_HEADER_IP_LENGTH_OFFSET 16 /* IP Length Offset */ +#define XEL_ARP_PACKET_SIZE 28 /* Max ARP packet size */ +#define XEL_HEADER_IP_LENGTH_OFFSET 16 /* IP Length Offset */ @@ -163,26 +163,9 @@ static void xemaclite_enable_interrupts(struct net_local *drvdata) __raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK, drvdata->base_addr + XEL_TSR_OFFSET); - /* Enable the Tx interrupts for the second Buffer if - * configured in HW */ - if (drvdata->tx_ping_pong != 0) { - reg_data = __raw_readl(drvdata->base_addr + - XEL_BUFFER_OFFSET + XEL_TSR_OFFSET); - __raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK, - drvdata->base_addr + XEL_BUFFER_OFFSET + - XEL_TSR_OFFSET); - } - /* Enable the Rx interrupts for the first buffer */ __raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET); - /* Enable the Rx interrupts for the second Buffer if - * configured in HW */ - if (drvdata->rx_ping_pong != 0) { - __raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + - XEL_BUFFER_OFFSET + XEL_RSR_OFFSET); - } - /* Enable the Global Interrupt Enable */ __raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET); } @@ -206,31 +189,10 @@ static void xemaclite_disable_interrupts(struct net_local *drvdata) __raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK), drvdata->base_addr + XEL_TSR_OFFSET); - /* Disable the Tx interrupts for the second Buffer - * if configured in HW */ - if (drvdata->tx_ping_pong != 0) { - reg_data = __raw_readl(drvdata->base_addr + XEL_BUFFER_OFFSET + - XEL_TSR_OFFSET); - __raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK), - drvdata->base_addr + XEL_BUFFER_OFFSET + - XEL_TSR_OFFSET); - } - /* Disable the Rx interrupts for the first buffer */ reg_data = __raw_readl(drvdata->base_addr + XEL_RSR_OFFSET); __raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK), drvdata->base_addr + XEL_RSR_OFFSET); - - /* Disable the Rx interrupts for the second buffer - * if configured in HW */ - if (drvdata->rx_ping_pong != 0) { - - reg_data = __raw_readl(drvdata->base_addr + XEL_BUFFER_OFFSET + - XEL_RSR_OFFSET); - __raw_writel(reg_data & (~XEL_RSR_RECV_IE_MASK), - drvdata->base_addr + XEL_BUFFER_OFFSET + - XEL_RSR_OFFSET); - } } /** @@ -258,6 +220,13 @@ static void xemaclite_aligned_write(void *src_ptr, u32 *dest_ptr, *to_u16_ptr++ = *from_u16_ptr++; *to_u16_ptr++ = *from_u16_ptr++; + /* This barrier resolves occasional issues seen around + * cases where the data is not properly flushed out + * from the processor store buffers to the destination + * memory locations. + */ + wmb(); + /* Output a word */ *to_u32_ptr++ = align_buffer; } @@ -273,6 +242,12 @@ static void xemaclite_aligned_write(void *src_ptr, u32 *dest_ptr, for (; length > 0; length--) *to_u8_ptr++ = *from_u8_ptr++; + /* This barrier resolves occasional issues seen around + * cases where the data is not properly flushed out + * from the processor store buffers to the destination + * memory locations. + */ + wmb(); *to_u32_ptr = align_buffer; } } @@ -1075,14 +1050,9 @@ static int xemaclite_send(struct sk_buff *orig_skb, struct net_device *dev) * This function un maps the IO region of the Emaclite device and frees the net * device. */ -static void xemaclite_remove_ndev(struct net_device *ndev, - struct platform_device *pdev) +static void xemaclite_remove_ndev(struct net_device *ndev) { if (ndev) { - struct net_local *lp = netdev_priv(ndev); - - if (lp->base_addr) - devm_iounmap(&pdev->dev, lp->base_addr); free_netdev(ndev); } } @@ -1177,7 +1147,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev) if (mac_address) /* Set the MAC address. */ - memcpy(ndev->dev_addr, mac_address, 6); + memcpy(ndev->dev_addr, mac_address, ETH_ALEN); else dev_warn(dev, "No MAC address found\n"); @@ -1214,7 +1184,7 @@ static int xemaclite_of_probe(struct platform_device *ofdev) return 0; error: - xemaclite_remove_ndev(ndev, ofdev); + xemaclite_remove_ndev(ndev); return rc; } @@ -1248,7 +1218,7 @@ static int xemaclite_of_remove(struct platform_device *of_dev) of_node_put(lp->phy_node); lp->phy_node = NULL; - xemaclite_remove_ndev(ndev, of_dev); + xemaclite_remove_ndev(ndev); return 0; } |