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/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2019 Intel Corporation
*/
#ifndef _IPN3KE_FLOW_H_
#define _IPN3KE_FLOW_H_
/**
* Expand the length to DWORD alignment with 'Unused' field.
*
* FLOW KEY:
* | Unused |Ruler id (id) | Key1 Key2 … (data) |
* |--------+---------------+--------------------|
* | 17bits | 3 bits | Total 108 bits |
* MSB ---> LSB
*
* Note: And the MSb of key data is filled to 0 when it is less
* than 108 bit.
*/
#define IPN3KE_FLOW_KEY_UNUSED_BITS 17
#define IPN3KE_FLOW_KEY_ID_BITS 3
#define IPN3KE_FLOW_KEY_DATA_BITS 108
#define IPN3KE_FLOW_KEY_TOTAL_BITS \
(IPN3KE_FLOW_KEY_UNUSED_BITS + \
IPN3KE_FLOW_KEY_ID_BITS + \
IPN3KE_FLOW_KEY_DATA_BITS)
#define IPN3KE_FLOW_KEY_ID_OFFSET \
(IPN3KE_FLOW_KEY_UNUSED_BITS)
#define IPN3KE_FLOW_KEY_DATA_OFFSET \
(IPN3KE_FLOW_KEY_ID_OFFSET + IPN3KE_FLOW_KEY_ID_BITS)
/**
* Expand the length to DWORD alignment with 'Unused' field.
*
* FLOW RESULT:
* | Unused | enable (acl) | uid |
* |---------+--------------+--------------|
* | 15 bits | 1 bit | 16 bits |
* MSB ---> LSB
*/
#define IPN3KE_FLOW_RESULT_UNUSED_BITS 15
#define IPN3KE_FLOW_RESULT_ACL_BITS 1
#define IPN3KE_FLOW_RESULT_UID_BITS 16
#define IPN3KE_FLOW_RESULT_TOTAL_BITS \
(IPN3KE_FLOW_RESULT_UNUSED_BITS + \
IPN3KE_FLOW_RESULT_ACL_BITS + \
IPN3KE_FLOW_RESULT_UID_BITS)
#define IPN3KE_FLOW_RESULT_ACL_OFFSET \
(IPN3KE_FLOW_RESULT_UNUSED_BITS)
#define IPN3KE_FLOW_RESULT_UID_OFFSET \
(IPN3KE_FLOW_RESULT_ACL_OFFSET + IPN3KE_FLOW_RESULT_ACL_BITS)
#define IPN3KE_FLOW_RESULT_UID_MAX \
((1UL << IPN3KE_FLOW_RESULT_UID_BITS) - 1)
#ifndef BITS_PER_BYTE
#define BITS_PER_BYTE 8
#endif
#define BITS_TO_BYTES(bits) \
(((bits) + BITS_PER_BYTE - 1) / BITS_PER_BYTE)
struct ipn3ke_flow_rule {
uint8_t key[BITS_TO_BYTES(IPN3KE_FLOW_KEY_TOTAL_BITS)];
uint8_t result[BITS_TO_BYTES(IPN3KE_FLOW_RESULT_TOTAL_BITS)];
};
struct rte_flow {
TAILQ_ENTRY(rte_flow) next; /**< Pointer to the next flow structure. */
struct ipn3ke_flow_rule rule;
};
TAILQ_HEAD(ipn3ke_flow_list, rte_flow);
static inline uint16_t ipn3ke_swap16(uint16_t x)
{
return ((x & 0xff) << 8) | ((x >> 8) & 0xff);
}
static inline uint32_t ipn3ke_swap32(uint32_t x)
{
uint32_t high, low;
uint32_t high1, low1;
high = (x >> 16) & 0xffff;
low = x & 0xffff;
high1 = ipn3ke_swap16(low);
high1 = high1 << 16;
low1 = ipn3ke_swap16(high);
low1 = low1 & 0xffff;
return high1 | low1;
}
extern const struct rte_flow_ops ipn3ke_flow_ops;
int ipn3ke_flow_init(void *dev);
#endif /* _IPN3KE_FLOW_H_ */
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