diff options
| -rw-r--r-- | include/net.h | 6 | ||||
| -rw-r--r-- | net/eth.c | 15 |
2 files changed, 18 insertions, 3 deletions
diff --git a/include/net.h b/include/net.h index a536fcc061..0a1b3a827c 100644 --- a/include/net.h +++ b/include/net.h @@ -95,7 +95,9 @@ struct eth_pdata { * * start: Prepare the hardware to send and receive packets * send: Send the bytes passed in "packet" as a packet on the wire - * recv: Check if the hardware received a packet. Call the network stack if so + * recv: Check if the hardware received a packet. If so, set the pointer to the + * packet buffer in the packetp parameter. If not, return an error or 0 to + * indicate that the hardware receive FIFO is empty * stop: Stop the hardware from looking for packets - may be called even if * state == PASSIVE * mcast: Join or leave a multicast group (for TFTP) - optional @@ -110,7 +112,7 @@ struct eth_pdata { struct eth_ops { int (*start)(struct udevice *dev); int (*send)(struct udevice *dev, void *packet, int length); - int (*recv)(struct udevice *dev); + int (*recv)(struct udevice *dev, uchar **packetp); void (*stop)(struct udevice *dev); #ifdef CONFIG_MCAST_TFTP int (*mcast)(struct udevice *dev, const u8 *enetaddr, int join); @@ -259,6 +259,9 @@ int eth_send(void *packet, int length) int eth_rx(void) { struct udevice *current; + uchar *packet; + int ret; + int i; current = eth_get_dev(); if (!current) @@ -267,7 +270,17 @@ int eth_rx(void) if (!device_active(current)) return -EINVAL; - return eth_get_ops(current)->recv(current); + /* Process up to 32 packets at one time */ + for (i = 0; i < 32; i++) { + ret = eth_get_ops(current)->recv(current, &packet); + if (ret > 0) + net_process_received_packet(packet, ret); + else + break; + } + if (ret == -EAGAIN) + ret = 0; + return ret; } static int eth_write_hwaddr(struct udevice *dev) |