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/*
* BSD LICENSE
*
* Copyright (C) Cavium Inc. 2017. 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 networks 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 IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __OCTEONTX_PKO_H__
#define __OCTEONTX_PKO_H__
/* PKO maximum constants */
#define PKO_VF_MAX (32)
#define PKO_VF_NUM_DQ (8)
#define PKO_MAX_NUM_DQ (8)
#define PKO_DQ_DRAIN_TO (1000)
#define PKO_DQ_FC_SKID (4)
#define PKO_DQ_FC_DEPTH_PAGES (2048)
#define PKO_DQ_FC_STRIDE_16 (16)
#define PKO_DQ_FC_STRIDE_128 (128)
#define PKO_DQ_FC_STRIDE PKO_DQ_FC_STRIDE_16
#define PKO_DQ_KIND_BIT 49
#define PKO_DQ_STATUS_BIT 60
#define PKO_DQ_OP_BIT 48
/* PKO VF register offsets from VF_BAR0 */
#define PKO_VF_DQ_SW_XOFF(gdq) (0x000100 | (gdq) << 17)
#define PKO_VF_DQ_WM_CTL(gdq) (0x000130 | (gdq) << 17)
#define PKO_VF_DQ_WM_CNT(gdq) (0x000150 | (gdq) << 17)
#define PKO_VF_DQ_FC_CONFIG (0x000160)
#define PKO_VF_DQ_FC_STATUS(gdq) (0x000168 | (gdq) << 17)
#define PKO_VF_DQ_OP_SEND(gdq, op) (0x001000 | (gdq) << 17 | (op) << 3)
#define PKO_VF_DQ_OP_OPEN(gdq) (0x001100 | (gdq) << 17)
#define PKO_VF_DQ_OP_CLOSE(gdq) (0x001200 | (gdq) << 17)
#define PKO_VF_DQ_OP_QUERY(gdq) (0x001300 | (gdq) << 17)
/* pko_send_hdr_s + pko_send_link */
#define PKO_CMD_SZ (2 << 1)
#define PKO_SEND_GATHER_SUBDC (0x0ull << 60)
#define PKO_SEND_GATHER_LDTYPE(x) ((x) << 58)
#define PKO_SEND_GATHER_GAUAR(x) ((x) << 24)
typedef struct octeontx_dq_s {
void *lmtline_va;
void *ioreg_va;
void *fc_status_va;
} octeontx_dq_t;
/**
* Function for extracting information out of a given DQ.
*
* It is intended to be used in slow path (configuration) in
* octeontx_pko_channel_query().
*
* @param dq The DQ to extract information from.
* @param out Pointer to the user's structure he wants to fill.
*/
typedef void (*octeontx_pko_dq_getter_t)(octeontx_dq_t *dq, void *out);
int
octeontx_pko_channel_query_dqs(int chanid, void *out, size_t out_elem_size,
size_t dq_num, octeontx_pko_dq_getter_t getter);
int octeontx_pko_channel_open(int dq_base, int dq_num, int chanid);
int octeontx_pko_channel_close(int chanid);
int octeontx_pko_channel_start(int chanid);
int octeontx_pko_channel_stop(int chanid);
int octeontx_pko_vf_count(void);
int octeontx_pko_init_fc(const size_t pko_vf_count);
void octeontx_pko_fc_free(void);
#endif /* __OCTEONTX_PKO_H__ */
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