#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 */
+ * in the HW spec
+ */
/* Define for programming the MAC address into the EmacLite */
#define XEL_TSR_PROG_MAC_ADDR (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_PROGRAM_MASK)
drvdata->next_tx_buf_to_use ^= XEL_BUFFER_OFFSET;
} else if (drvdata->tx_ping_pong != 0) {
/* If the expected buffer is full, try the other buffer,
- * if it is configured in HW */
+ * if it is configured in HW
+ */
addr = (void __iomem __force *)((u32 __force)addr ^
XEL_BUFFER_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 */
+ * has been transmitted
+ */
reg_data = xemaclite_readl(addr + XEL_TSR_OFFSET);
reg_data |= (XEL_TSR_XMIT_BUSY_MASK | XEL_TSR_XMIT_ACTIVE_MASK);
xemaclite_writel(reg_data, addr + XEL_TSR_OFFSET);
/* The instance is out of sync, try other buffer if other
* buffer is configured, return 0 otherwise. If the instance is
* out of sync, do not update the 'next_rx_buf_to_use' since it
- * will correct on subsequent calls */
+ * will correct on subsequent calls
+ */
if (drvdata->rx_ping_pong != 0)
addr = (void __iomem __force *)((u32 __force)addr ^
XEL_BUFFER_OFFSET);
return 0; /* No data was available */
}
- /* Get the protocol type of the ethernet frame that arrived */
+ /* Get the protocol type of the ethernet frame that arrived
+ */
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 */
+ * or an IP packet or an ARP packet
+ */
if (proto_type > ETH_DATA_LEN) {
if (proto_type == ETH_P_IP) {
length = XEL_ARP_PACKET_SIZE + ETH_HLEN + ETH_FCS_LEN;
else
/* Field contains type other than IP or ARP, use max
- * frame size and let user parse it */
+ * frame size and let user parse it
+ */
length = ETH_FRAME_LEN + ETH_FCS_LEN;
} else
/* Use the length in the frame, plus the header and trailer */
return;
}
- /*
- * A new skb should have the data halfword aligned, but this code is
+ /* A new skb should have the data halfword aligned, but this code is
* here just in case that isn't true. Calculate how many
* bytes we should reserve to get the data to start on a word
- * boundary */
+ * boundary
+ */
align = BUFFER_ALIGN(skb->data);
if (align)
skb_reserve(skb, align);
unsigned long end = jiffies + 2;
/* wait for the MDIO interface to not be busy or timeout
- after some time.
- */
+ * after some time.
+ */
while (xemaclite_readl(lp->base_addr + XEL_MDIOCTRL_OFFSET) &
XEL_MDIOCTRL_MDIOSTS_MASK) {
if (time_before_eq(end, jiffies)) {
if (xemaclite_send_data(lp, (u8 *) new_skb->data, len) != 0) {
/* If the Emaclite Tx buffer is busy, stop the Tx queue and
* defer the skb for transmission during the ISR, after the
- * current transmission is complete */
+ * current transmission is complete
+ */
netif_stop_queue(dev);
lp->deferred_skb = new_skb;
/* Take the time stamp now, since we can't do this in an ISR. */