An I/O notification packet (second word) More...

#include <netio_intf.h>

Data Fields
unsigned int	word

struct {
unsigned int __queue:2

unsigned int __ipp_handle:2

unsigned int __reserved:1

unsigned int __minimal:1

unsigned int __offset:2

unsigned int __addr:24

}	bits

Detailed Description

An I/O notification packet (second word)

This is the second word of data received from an I/O shim in a notification packet. This is the virtual address of the packet buffer, plus some flag bits. (The virtual address of the packet is always 256-byte aligned so we have room for 8 bits' worth of flags in the low 8 bits.)

Definition at line 465 of file netio_intf.h.

Field Documentation

unsigned int __addr

The top 24 bits of the packet's virtual address.

Definition at line 492 of file netio_intf.h.

unsigned int __ipp_handle

The IPP handle of the sending IPP.

Definition at line 476 of file netio_intf.h.

unsigned int __minimal

If 1, this packet has minimal (egress) metadata; otherwise, it has standard (ingress) metadata.

Definition at line 483 of file netio_intf.h.

unsigned int __offset

Offset of the metadata within the packet. This value is multiplied by 64 and added to the base packet address to get the metadata address. Note that this field is aligned within the word such that you can easily extract the metadata address with a 26-bit mask.

Definition at line 489 of file netio_intf.h.

unsigned int __queue

Which queue the packet will be returned to once it is sent back to the IPP. This is one of the SIZE_xxx values.

Definition at line 473 of file netio_intf.h.

unsigned int __reserved

Reserved for future use.

Definition at line 479 of file netio_intf.h.

struct { ... } bits

unsigned int word

The whole word.

Definition at line 467 of file netio_intf.h.

The documentation for this union was generated from the following file:

arch/tile/include/hv/netio_intf.h

Data Fields

Detailed Description

Field Documentation