Help: ICE_ICELIB_PIC_RECV
Receives a packet from a port/processor module
Function PIC_RECV - Receives a packet from a port/processor module
PIC p Handle to Device
int node Port/Processor Module node ID (-1=useDefault)
int *head Pointer to packet header for RMIF packets
int *data Pointer to packet data
int bytes Number of bytes to write
int flags 0=Normal, PKT_RMIF for RMIF packets, PKT_ACMD for command packets
Receives a packet from a processor module output socket.
If flags indicate there is a packet header involved (i.e. PKT_RMIF), the
packet header is read into *head. The <bytes> parameter is the maximum
length of the transfer into the *data buffer.
For ACMD commands, this follows a PKTF_BUS_RD, or PKTF_MEM_RD. The header values
should be the values from the send() command. The data will be returned in *data.
All packet transfers are rounded up to 8-byte boundaries. Make sure the
data buffer supports a read through the last 8-byte aligned field. This
is to avoid extra memory copies in support of high-speed transfers.
See PIC_MSG for node IDs.
Returns the number of bytes read or -1 if nothing is available.