NAME
ifiq_input,
ifiq_enqueue —
network interface input queue
(ifiqueue) API
SYNOPSIS
#include
<net/if_var.h>
int
ifiq_input(struct
ifiqueue *ifiq, struct
mbuf_list *ml);
void
ifiq_enqueue(struct
ifiqueue *ifiq, struct
mbuf *m);
DESCRIPTION
The network interface input queue (ifiqueue) API provides functions for network drivers to queue received packets for processing by the network stack.
ifiq_input(struct ifiqueue *ifq, struct mbuf_list *ml)- Enqueue the list of mbufs in ml on the ifiq interface input queue and notify the network stack to process them. If the queue rejects the packets, they will be freed and counted as drops.
ifiq_enqueue(struct ifiqueue *ifq, struct mbuf *m)- Enqueue the mbuf m on the ifiq interface input queue and notify the network stack to process it.
CONTEXT
ifiq_input() and
ifiq_enqueue() can be called during autoconf, from
process context, or from interrupt context.
RETURN VALUES
ifiq_input() returns a non-zero value if
mbufs are queued too rapidly for the stack to process. If possible, the
caller should attempt to reduce the number of mbufs being generated in the
future. For example, if mbufs are being received from hardware managed with
the interface RX ring API, if_rxr_livelocked(9) can be called to indicate to the
hardware that backpressure is required.