/*-
 * Broadcom NetXtreme-C/E network driver.
 *
 * Copyright (c) 2024 Broadcom, All Rights Reserved.
 * The term Broadcom refers to Broadcom Limited and/or its subsidiaries
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * 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 _BNXT_DCB_H
#define _BNXT_DCB_H

#define BNXT_IEEE_8021QAZ_MAX_TCS               8
#define BNXT_IEEE_8021QAZ_TSA_STRICT            0
#define BNXT_IEEE_8021QAZ_TSA_ETS               2
#define BNXT_IEEE_8021QAZ_TSA_VENDOR            255

#define BNXT_DCB_CAP_DCBX_HOST                  0x01
#define BNXT_DCB_CAP_DCBX_LLD_MANAGED           0x02
#define BNXT_DCB_CAP_DCBX_VER_CEE               0x04
#define BNXT_DCB_CAP_DCBX_VER_IEEE              0x08
#define BNXT_DCB_CAP_DCBX_STATIC                0x10

#ifndef __struct_group
#define __struct_group(TAG, NAME, ATTRS, MEMBERS...) \
        union { \
                struct { MEMBERS } ATTRS; \
                struct TAG { MEMBERS } ATTRS NAME; \
        }
#endif
#ifndef struct_group_attr
#define struct_group_attr(NAME, ATTRS, MEMBERS...) \
        __struct_group(/* no tag */, NAME, ATTRS, MEMBERS)
#endif

struct bnxt_cos2bw_cfg {
        uint8_t                 pad[3];
        struct_group_attr(cfg, __packed,
                uint8_t                 queue_id;
                uint32_t                min_bw;
                uint32_t                max_bw;
#define BW_VALUE_UNIT_PERCENT1_100              (0x1UL << 29)
                uint8_t                 tsa;
                uint8_t                 pri_lvl;
                uint8_t                 bw_weight;
        );
        uint8_t                 unused;
};

struct bnxt_dscp2pri_entry {
        uint8_t dscp;
        uint8_t mask;
        uint8_t pri;
};

struct bnxt_ieee_ets {
        uint8_t    willing;
        uint8_t    ets_cap;
        uint8_t    cbs;
        uint8_t    tc_tx_bw[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint8_t    tc_rx_bw[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint8_t    tc_tsa[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint8_t    prio_tc[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint8_t    tc_reco_bw[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint8_t    tc_reco_tsa[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint8_t    reco_prio_tc[BNXT_IEEE_8021QAZ_MAX_TCS];
} __attribute__ ((__packed__));

struct bnxt_ieee_pfc {
        uint8_t    pfc_cap;
        uint8_t    pfc_en;
        uint8_t    mbc;
        uint16_t   delay;
        uint64_t   requests[BNXT_IEEE_8021QAZ_MAX_TCS];
        uint64_t   indications[BNXT_IEEE_8021QAZ_MAX_TCS];
} __attribute__ ((__packed__));

struct bnxt_dcb_app {
        uint8_t    selector;
        uint8_t    priority;
        uint16_t   protocol;
} __attribute__ ((__packed__));

struct bnxt_eee {
        uint32_t   cmd;
        uint32_t   supported;
        uint32_t   advertised;
        uint32_t   lp_advertised;
        uint32_t   eee_active;
        uint32_t   eee_enabled;
        uint32_t   tx_lpi_enabled;
        uint32_t   tx_lpi_timer;
        uint32_t   reserved[2];
} __attribute__ ((__packed__));

#define BNXT_IEEE_8021QAZ_APP_SEL_ETHERTYPE     1
#define BNXT_IEEE_8021QAZ_APP_SEL_STREAM        2
#define BNXT_IEEE_8021QAZ_APP_SEL_DGRAM         3
#define BNXT_IEEE_8021QAZ_APP_SEL_ANY           4
#define BNXT_IEEE_8021QAZ_APP_SEL_DSCP          5
#define ETH_P_ROCE                              0x8915
#define ROCE_V2_UDP_DPORT                       4791

#define BNXT_LLQ(q_profile)     \
        ((q_profile) == HWRM_QUEUE_QPORTCFG_OUTPUT_QUEUE_ID0_SERVICE_PROFILE_LOSSLESS_ROCE ||   \
         (q_profile) == HWRM_QUEUE_QPORTCFG_OUTPUT_QUEUE_ID0_SERVICE_PROFILE_LOSSLESS_NIC)
#define BNXT_CNPQ(q_profile)    \
        ((q_profile) == HWRM_QUEUE_QPORTCFG_OUTPUT_QUEUE_ID0_SERVICE_PROFILE_LOSSY_ROCE_CNP)

#define HWRM_STRUCT_DATA_SUBTYPE_HOST_OPERATIONAL       0x0300

#endif