freebsd-dev/sys/contrib/octeon-sdk/cvmx-packet.h
Juli Mallett dc4ee6ca91 Merge the Cavium Octeon SDK 2.3.0 Simple Executive code and update FreeBSD to
make use of it where possible.

This primarily brings in support for newer hardware, and FreeBSD is not yet
able to support the abundance of IRQs on new hardware and many features in the
Ethernet driver.

Because of the changes to IRQs in the Simple Executive, we have to maintain our
own list of Octeon IRQs now, which probably can be pared-down and be specific
to the CIU interrupt unit soon, and when other interrupt mechanisms are added
they can maintain their own definitions.

Remove unmasking of interrupts from within the UART device now that the
function used is no longer present in the Simple Executive.  The unmasking
seems to have been gratuitous as this is more properly handled by the buses
above the UART device, and seems to work on that basis.
2012-03-11 06:17:49 +00:00

82 lines
2.9 KiB
C

/***********************license start***************
* Copyright (c) 2003-2010 Cavium Inc. (support@cavium.com). All rights
* reserved.
*
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Cavium Inc. nor the names of
* its contributors may be used to endorse or promote products
* derived from this software without specific prior written
* permission.
* This Software, including technical data, may be subject to U.S. export control
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* regulations, and may be subject to export or import regulations in other
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
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***********************license end**************************************/
/**
* @file
*
* Packet buffer defines.
*
* <hr>$Revision: 70030 $<hr>
*
*/
#ifndef __CVMX_PACKET_H__
#define __CVMX_PACKET_H__
#ifdef __cplusplus
extern "C" {
#endif
/**
* This structure defines a buffer pointer on Octeon
*/
union cvmx_buf_ptr {
void* ptr;
uint64_t u64;
struct
{
uint64_t i : 1; /**< if set, invert the "free" pick of the overall packet. HW always sets this bit to 0 on inbound packet */
uint64_t back : 4; /**< Indicates the amount to back up to get to the buffer start in cache lines. In most cases
this is less than one complete cache line, so the value is zero */
uint64_t pool : 3; /**< The pool that the buffer came from / goes to */
uint64_t size :16; /**< The size of the segment pointed to by addr (in bytes) */
uint64_t addr :40; /**< Pointer to the first byte of the data, NOT buffer */
} s;
};
typedef union cvmx_buf_ptr cvmx_buf_ptr_t;
#ifdef __cplusplus
}
#endif
#endif /* __CVMX_PACKET_H__ */