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IF_ENQUEUE(9r)
NAME
  IF_ENQUEUE - Network: Adds an entry to the end of the output queue

SYNOPSIS
  #include <net/if.h>


  void IF_ENQUEUE(
	  struct ifqueue *ifq,
	  struct mbuf *m );

ARGUMENTS
  ifq Specifies a pointer to an ifqueue data structure.	 This data structure
      represents the output queue. Typically, a network driver references
      this queue through the if_snd member of the ifnet structure pointer.

  m   Specifies a pointer to an mbuf data structure. This data structure
      contains the memory buffer information that IF_ENQUEUE() manipulates.

DESCRIPTION
  The IF_ENQUEUE() routine adds an entry to the end of the output queue.
  Specifically, IF_ENQUEUE() performs the following tasks:

    ·  Performs a simple lock on the entry in the queue.

    ·  Adds the entry to the queue by operating on various members of the
       ifqueue and mbuf structures.

    ·  Unlocks the simple lock on the entry in the queue.

NOTES
  You should raise the IPL to mask all LAN hardware interrupts by calling
  splimp() prior to calling the IF_ENQUEUE() routine.

RETURN VALUES
  None

FILES
  <if.h>








SEE ALSO
  Routines: IF_DEQUEUE(9r), IF_PREPEND(9r)

Index for Section 9

Alphabetical listing for I

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