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/* Copyright (c) 2016-2018, Linaro Limited
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef ODP_CONFIG_INTERNAL_H_
#define ODP_CONFIG_INTERNAL_H_
#ifdef __cplusplus
extern "C" {
#endif
/*
* Maximum number of CPUs supported. Maximum CPU ID is CONFIG_NUM_CPU - 1.
*/
#define CONFIG_NUM_CPU 256
/*
* Maximum number of pools
*/
#define ODP_CONFIG_POOLS 64
/*
* Maximum number of queues
*/
#define ODP_CONFIG_QUEUES 1024
/*
* Queues reserved for ODP internal use
*/
#define NUM_INTERNAL_QUEUES 64
/*
* Maximum number of ordered locks per queue
*/
#define CONFIG_QUEUE_MAX_ORD_LOCKS 2
/*
* Maximum number of packet IO resources
*/
#define ODP_CONFIG_PKTIO_ENTRIES 64
/*
* Maximum buffer alignment
*
* This defines the maximum supported buffer alignment. Requests for values
* above this will fail.
*/
#define ODP_CONFIG_BUFFER_ALIGN_MAX (4 * 1024)
/*
* Default packet headroom
*
* This defines the minimum number of headroom bytes that newly created packets
* have by default. The default apply to both ODP packet input and user
* allocated packets. Implementations may reserve a larger than minimum headroom
* size e.g. due to HW or a protocol specific alignment requirement.
*
* @internal In odp-linux implementation:
* The default value (128) allows a 1500-byte packet to be received into a
* single segment with room for some header expansion.
*/
#define CONFIG_PACKET_HEADROOM 128
/*
* Default packet tailroom
*
* This defines the minimum number of tailroom bytes that newly created packets
* have by default. The default apply to both ODP packet input and user
* allocated packets. Implementations are free to add to this as desired
* without restriction. Note that most implementations will automatically
* consider any unused portion of the last segment of a packet as tailroom
*/
#define CONFIG_PACKET_TAILROOM 0
/*
* Maximum number of segments per packet
*/
#define CONFIG_PACKET_MAX_SEGS 255
/*
* Packet segmentation disabled
*/
#define CONFIG_PACKET_SEG_DISABLED (CONFIG_PACKET_MAX_SEGS == 1)
/*
* Number of segments stored in a packet header
*/
#define CONFIG_PACKET_SEGS_PER_HDR 6
/*
* Maximum packet data length in bytes
*/
#define CONFIG_PACKET_MAX_LEN (64 * 1024)
/*
* Maximum packet segment size including head- and tailrooms
*/
#define CONFIG_PACKET_SEG_SIZE (8 * 1024)
/* Maximum data length in a segment
*
* The user defined segment length (seg_len in odp_pool_param_t) must not
* be larger than this.
*/
#define CONFIG_PACKET_MAX_SEG_LEN (CONFIG_PACKET_SEG_SIZE - \
CONFIG_PACKET_HEADROOM - \
CONFIG_PACKET_TAILROOM)
/*
* Minimum packet segment length
*
* This defines the minimum packet segment buffer length in bytes. The user
* defined segment length (seg_len in odp_pool_param_t) will be rounded up into
* this value.
*/
#define CONFIG_PACKET_SEG_LEN_MIN ((2 * 1024) + \
CONFIG_PACKET_HEADROOM + \
CONFIG_PACKET_TAILROOM)
/* Maximum number of shared memory blocks.
*
* This the the number of separate SHM areas that can be reserved concurrently
*/
#define ODP_CONFIG_SHM_BLOCKS (ODP_CONFIG_POOLS + 48)
/*
* Maximum event burst size
*
* This controls the burst size on various enqueue, dequeue, etc calls. Large
* burst size improves throughput, but may degrade QoS (increase latency).
*/
#define CONFIG_BURST_SIZE 32
/*
* Maximum number of events in a pool. Power of two minus one results optimal
* memory usage for the ring.
*/
#define CONFIG_POOL_MAX_NUM ((1024 * 1024) - 1)
/*
* Maximum number of events in a thread local pool cache
*/
#define CONFIG_POOL_CACHE_MAX_SIZE 256
#ifdef __cplusplus
}
#endif
#endif
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