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Add entry for if_transmit and if_qflush

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This commit is contained in:
Kip Macy 2008-12-11 22:51:11 +00:00
parent 1ff90be789
commit a2b96afe46
1 changed files with 20 additions and 1 deletions
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21
share/man/man9/ifnet.9
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@ -103,6 +103,10 @@
.Ft void
.Fn \*(lp*if_start\*(rp "struct ifnet *ifp"
.Ft int
.Fn \*(lp*if_transmit\*(rp "struct ifnet *ifp" "struct mbuf *m"
.Ft void
.Fn \*(lp*if_qflush\*(rp "struct ifnet *ifp"
.Ft int
.Fn \*(lp*if_ioctl\*(rp "struct ifnet *ifp" "int cmd" "caddr_t data"
.Ft void
.Fn \*(lp*if_watchdog\*(rp "struct ifnet *ifp"
@ -350,6 +354,20 @@ framing, e.g., Ethernet.
Output a packet on interface
.Fa ifp ,
or queue it on the output queue if the interface is already active.
.It Fn if_transmit
Transmit a packet on an interface or queue it if the interface is
in use. This function will return
.Dv ENOBUFS
if the devices software and hardware queues are both full. This
function must be installed after
.It Fn if_qflush
Free mbufs in internally managed queues when the interface is marked down.
This function must be installed after
.Fn if_attach
to override the default implementation. This function is exposed in order
to allow drivers to manage their own queues and to reduce the latency
caused by a frequently gratuitous enqueue / dequeue pair to ifq. The
suggested internal software queueing mechanism is buf_ring.
.It Fn if_start
Start queued output on an interface.
This function is exposed in
@ -363,7 +381,8 @@ flag is not set.
(Thus,
.Dv IFF_OACTIVE
does not literally mean that output is active, but rather that the
device's internal output queue is full.)
device's internal output queue is full.) Please note that this function
will soon be deprecated.
.It Fn if_done
Not used.
We are not even sure what it was ever for.