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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

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This commit is contained in:
David S. Miller
2017-02-16 19:34:01 -05:00
parent f3caf8618b 4695daefba
commit 3f64116a83
66 changed files with 595 additions and 291 deletions
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126
drivers/net/ethernet/xilinx/xilinx_emaclite.c
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@@ -100,6 +100,14 @@
/* BUFFER_ALIGN(adr) calculates the number of bytes to the next alignment. */
#define BUFFER_ALIGN(adr) ((ALIGNMENT - ((u32) adr)) % ALIGNMENT)
#ifdef __BIG_ENDIAN
#define xemaclite_readl ioread32be
#define xemaclite_writel iowrite32be
#else
#define xemaclite_readl ioread32
#define xemaclite_writel iowrite32
#endif
/**
* struct net_local - Our private per device data
* @ndev: instance of the network device
@@ -156,15 +164,15 @@ static void xemaclite_enable_interrupts(struct net_local *drvdata)
u32 reg_data;
/* Enable the Tx interrupts for the first Buffer */
reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
__raw_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
drvdata->base_addr + XEL_TSR_OFFSET);
reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
xemaclite_writel(reg_data | XEL_TSR_XMIT_IE_MASK,
drvdata->base_addr + XEL_TSR_OFFSET);
/* Enable the Rx interrupts for the first buffer */
__raw_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
xemaclite_writel(XEL_RSR_RECV_IE_MASK, drvdata->base_addr + XEL_RSR_OFFSET);
/* Enable the Global Interrupt Enable */
__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
}
/**
@@ -179,17 +187,17 @@ static void xemaclite_disable_interrupts(struct net_local *drvdata)
u32 reg_data;
/* Disable the Global Interrupt Enable */
__raw_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
xemaclite_writel(XEL_GIER_GIE_MASK, drvdata->base_addr + XEL_GIER_OFFSET);
/* Disable the Tx interrupts for the first buffer */
reg_data = __raw_readl(drvdata->base_addr + XEL_TSR_OFFSET);
__raw_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
drvdata->base_addr + XEL_TSR_OFFSET);
reg_data = xemaclite_readl(drvdata->base_addr + XEL_TSR_OFFSET);
xemaclite_writel(reg_data & (~XEL_TSR_XMIT_IE_MASK),
drvdata->base_addr + 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);
reg_data = xemaclite_readl(drvdata->base_addr + XEL_RSR_OFFSET);
xemaclite_writel(reg_data & (~XEL_RSR_RECV_IE_MASK),
drvdata->base_addr + XEL_RSR_OFFSET);
}
/**
@@ -321,7 +329,7 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
byte_count = ETH_FRAME_LEN;
/* Check if the expected buffer is available */
reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
XEL_TSR_XMIT_ACTIVE_MASK)) == 0) {
@@ -334,7 +342,7 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
addr = (void __iomem __force *)((u32 __force)addr ^
XEL_BUFFER_OFFSET);
reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
if ((reg_data & (XEL_TSR_XMIT_BUSY_MASK |
XEL_TSR_XMIT_ACTIVE_MASK)) != 0)
@@ -345,16 +353,16 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
/* Write the frame to the buffer */
xemaclite_aligned_write(data, (u32 __force *) addr, byte_count);
__raw_writel((byte_count & XEL_TPLR_LENGTH_MASK),
addr + XEL_TPLR_OFFSET);
xemaclite_writel((byte_count & XEL_TPLR_LENGTH_MASK),
addr + XEL_TPLR_OFFSET);
/* Update the Tx Status Register to indicate that there is a
* frame to send. Set the XEL_TSR_XMIT_ACTIVE_MASK flag which
* is used by the interrupt handler to check whether a frame
* has been transmitted */
reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
reg_data |= (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_XMIT_ACTIVE_MASK);
__raw_writel(reg_data, addr + XEL_TSR_OFFSET);
xemaclite_writel(reg_data, addr + XEL_TSR_OFFSET);
return 0;
}
@@ -369,7 +377,7 @@ static int xemaclite_send_data(struct net_local *drvdata, u8 *data,
*
* Return: Total number of bytes received
*/
static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data, int maxlen)
{
void __iomem *addr;
u16 length, proto_type;
@@ -379,7 +387,7 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
addr = (drvdata->base_addr + drvdata->next_rx_buf_to_use);
/* Verify which buffer has valid data */
reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
if ((reg_data & XEL_RSR_RECV_DONE_MASK) == XEL_RSR_RECV_DONE_MASK) {
if (drvdata->rx_ping_pong != 0)
@@ -396,27 +404,28 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
return 0; /* No data was available */
/* Verify that buffer has valid data */
reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
if ((reg_data & XEL_RSR_RECV_DONE_MASK) !=
XEL_RSR_RECV_DONE_MASK)
return 0; /* No data was available */
}
/* Get the protocol type of the ethernet frame that arrived */
proto_type = ((ntohl(__raw_readl(addr + XEL_HEADER_OFFSET +
proto_type = ((ntohl(xemaclite_readl(addr + XEL_HEADER_OFFSET +
XEL_RXBUFF_OFFSET)) >> XEL_HEADER_SHIFT) &
XEL_RPLR_LENGTH_MASK);
/* Check if received ethernet frame is a raw ethernet frame
* or an IP packet or an ARP packet */
if (proto_type > (ETH_FRAME_LEN + ETH_FCS_LEN)) {
if (proto_type > ETH_DATA_LEN) {
if (proto_type == ETH_P_IP) {
length = ((ntohl(__raw_readl(addr +
length = ((ntohl(xemaclite_readl(addr +
XEL_HEADER_IP_LENGTH_OFFSET +
XEL_RXBUFF_OFFSET)) >>
XEL_HEADER_SHIFT) &
XEL_RPLR_LENGTH_MASK);
length = min_t(u16, length, ETH_DATA_LEN);
length += ETH_HLEN + ETH_FCS_LEN;
} else if (proto_type == ETH_P_ARP)
@@ -429,14 +438,17 @@ static u16 xemaclite_recv_data(struct net_local *drvdata, u8 *data)
/* Use the length in the frame, plus the header and trailer */
length = proto_type + ETH_HLEN + ETH_FCS_LEN;
if (WARN_ON(length > maxlen))
length = maxlen;
/* Read from the EmacLite device */
xemaclite_aligned_read((u32 __force *) (addr + XEL_RXBUFF_OFFSET),
data, length);
/* Acknowledge the frame */
reg_data = __raw_readl(addr + XEL_RSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_RSR_OFFSET);
reg_data &= ~XEL_RSR_RECV_DONE_MASK;
__raw_writel(reg_data, addr + XEL_RSR_OFFSET);
xemaclite_writel(reg_data, addr + XEL_RSR_OFFSET);
return length;
}
@@ -463,14 +475,14 @@ static void xemaclite_update_address(struct net_local *drvdata,
xemaclite_aligned_write(address_ptr, (u32 __force *) addr, ETH_ALEN);
__raw_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
xemaclite_writel(ETH_ALEN, addr + XEL_TPLR_OFFSET);
/* Update the MAC address in the EmacLite */
reg_data = __raw_readl(addr + XEL_TSR_OFFSET);
__raw_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
xemaclite_writel(reg_data | XEL_TSR_PROG_MAC_ADDR, addr + XEL_TSR_OFFSET);
/* Wait for EmacLite to finish with the MAC address update */
while ((__raw_readl(addr + XEL_TSR_OFFSET) &
while ((xemaclite_readl(addr + XEL_TSR_OFFSET) &
XEL_TSR_PROG_MAC_ADDR) != 0)
;
}
@@ -603,7 +615,7 @@ static void xemaclite_rx_handler(struct net_device *dev)
skb_reserve(skb, 2);
len = xemaclite_recv_data(lp, (u8 *) skb->data);
len = xemaclite_recv_data(lp, (u8 *) skb->data, len);
if (!len) {
dev->stats.rx_errors++;
@@ -640,32 +652,32 @@ static irqreturn_t xemaclite_interrupt(int irq, void *dev_id)
u32 tx_status;
/* Check if there is Rx Data available */
if ((__raw_readl(base_addr + XEL_RSR_OFFSET) &
if ((xemaclite_readl(base_addr + XEL_RSR_OFFSET) &
XEL_RSR_RECV_DONE_MASK) ||
(__raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
(xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_RSR_OFFSET)
& XEL_RSR_RECV_DONE_MASK))
xemaclite_rx_handler(dev);
/* Check if the Transmission for the first buffer is completed */
tx_status = __raw_readl(base_addr + XEL_TSR_OFFSET);
tx_status = xemaclite_readl(base_addr + XEL_TSR_OFFSET);
if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
__raw_writel(tx_status, base_addr + XEL_TSR_OFFSET);
xemaclite_writel(tx_status, base_addr + XEL_TSR_OFFSET);
tx_complete = true;
}
/* Check if the Transmission for the second buffer is completed */
tx_status = __raw_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
tx_status = xemaclite_readl(base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
if (((tx_status & XEL_TSR_XMIT_BUSY_MASK) == 0) &&
(tx_status & XEL_TSR_XMIT_ACTIVE_MASK) != 0) {
tx_status &= ~XEL_TSR_XMIT_ACTIVE_MASK;
__raw_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
XEL_TSR_OFFSET);
xemaclite_writel(tx_status, base_addr + XEL_BUFFER_OFFSET +
XEL_TSR_OFFSET);
tx_complete = true;
}
@@ -698,7 +710,7 @@ static int xemaclite_mdio_wait(struct net_local *lp)
/* wait for the MDIO interface to not be busy or timeout
after some time.
*/
while (__raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
while (xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
XEL_MDIOCTRL_MDIOSTS_MASK) {
if (time_before_eq(end, jiffies)) {
WARN_ON(1);
@@ -734,17 +746,17 @@ static int xemaclite_mdio_read(struct mii_bus *bus, int phy_id, int reg)
* MDIO Address register. Set the Status bit in the MDIO Control
* register to start a MDIO read transaction.
*/
ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
__raw_writel(XEL_MDIOADDR_OP_MASK |
((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
lp->base_addr + XEL_MDIOADDR_OFFSET);
__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
lp->base_addr + XEL_MDIOCTRL_OFFSET);
ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
xemaclite_writel(XEL_MDIOADDR_OP_MASK |
((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
lp->base_addr + XEL_MDIOADDR_OFFSET);
xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
lp->base_addr + XEL_MDIOCTRL_OFFSET);
if (xemaclite_mdio_wait(lp))
return -ETIMEDOUT;
rc = __raw_readl(lp->base_addr + XEL_MDIORD_OFFSET);
rc = xemaclite_readl(lp->base_addr + XEL_MDIORD_OFFSET);
dev_dbg(&lp->ndev->dev,
"xemaclite_mdio_read(phy_id=%i, reg=%x) == %x\n",
@@ -781,13 +793,13 @@ static int xemaclite_mdio_write(struct mii_bus *bus, int phy_id, int reg,
* Data register. Finally, set the Status bit in the MDIO Control
* register to start a MDIO write transaction.
*/
ctrl_reg = __raw_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
__raw_writel(~XEL_MDIOADDR_OP_MASK &
((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
lp->base_addr + XEL_MDIOADDR_OFFSET);
__raw_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
__raw_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
lp->base_addr + XEL_MDIOCTRL_OFFSET);
ctrl_reg = xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET);
xemaclite_writel(~XEL_MDIOADDR_OP_MASK &
((phy_id << XEL_MDIOADDR_PHYADR_SHIFT) | reg),
lp->base_addr + XEL_MDIOADDR_OFFSET);
xemaclite_writel(val, lp->base_addr + XEL_MDIOWR_OFFSET);
xemaclite_writel(ctrl_reg | XEL_MDIOCTRL_MDIOSTS_MASK,
lp->base_addr + XEL_MDIOCTRL_OFFSET);
return 0;
}
@@ -834,8 +846,8 @@ static int xemaclite_mdio_setup(struct net_local *lp, struct device *dev)
/* Enable the MDIO bus by asserting the enable bit in MDIO Control
* register.
*/
__raw_writel(XEL_MDIOCTRL_MDIOEN_MASK,
lp->base_addr + XEL_MDIOCTRL_OFFSET);
xemaclite_writel(XEL_MDIOCTRL_MDIOEN_MASK,
lp->base_addr + XEL_MDIOCTRL_OFFSET);
bus = mdiobus_alloc();
if (!bus) {
@@ -1126,8 +1138,8 @@ static int xemaclite_of_probe(struct platform_device *ofdev)
}
/* Clear the Tx CSR's in case this is a restart */
__raw_writel(0, lp->base_addr + XEL_TSR_OFFSET);
__raw_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
xemaclite_writel(0, lp->base_addr + XEL_TSR_OFFSET);
xemaclite_writel(0, lp->base_addr + XEL_BUFFER_OFFSET + XEL_TSR_OFFSET);
/* Set the MAC address in the EmacLite device */
xemaclite_update_address(lp, ndev->dev_addr);