text: /* SPDX-License-Identifier: BSD-3-Clause
   * Copyright(C) 2019 Marvell International Ltd.
   */
  
  #ifndef __OTX2_MBOX_H__
  #define __OTX2_MBOX_H__
  
  #include <errno.h>
  #include <stdbool.h>
  
  #include <rte_ether.h>
  #include <rte_spinlock.h>
  
  #include <otx2_common.h>
  
  #define SZ_64K			(64ULL * 1024ULL)
  #define SZ_1K			(1ULL * 1024ULL)
  #define MBOX_SIZE		SZ_64K
  
  /* AF/PF: PF initiated, PF/VF VF initiated */
  #define MBOX_DOWN_RX_START	0
  #define MBOX_DOWN_RX_SIZE	(46 * SZ_1K)
  #define MBOX_DOWN_TX_START	(MBOX_DOWN_RX_START + MBOX_DOWN_RX_SIZE)
  #define MBOX_DOWN_TX_SIZE	(16 * SZ_1K)
  /* AF/PF: AF initiated, PF/VF PF initiated */
  #define MBOX_UP_RX_START	(MBOX_DOWN_TX_START + MBOX_DOWN_TX_SIZE)
  #define MBOX_UP_RX_SIZE		SZ_1K
  #define MBOX_UP_TX_START	(MBOX_UP_RX_START + MBOX_UP_RX_SIZE)
  #define MBOX_UP_TX_SIZE		SZ_1K
  
  #if MBOX_UP_TX_SIZE + MBOX_UP_TX_START != MBOX_SIZE
  # error "Incorrect mailbox area sizes"
  #endif
  
  #define INTR_MASK(pfvfs) ((pfvfs < 64) ? (BIT_ULL(pfvfs) - 1) : (~0ull))
  
  #define MBOX_RSP_TIMEOUT	3000 /* Time to wait for mbox response in ms */
  
  #define MBOX_MSG_ALIGN		16  /* Align mbox msg start to 16bytes */
  
  /* Mailbox directions */
  #define MBOX_DIR_AFPF		0  /* AF replies to PF */
  #define MBOX_DIR_PFAF		1  /* PF sends messages to AF */
  #define MBOX_DIR_PFVF		2  /* PF replies to VF */
  #define MBOX_DIR_VFPF		3  /* VF sends messages to PF */
  #define MBOX_DIR_AFPF_UP	4  /* AF sends messages to PF */
  #define MBOX_DIR_PFAF_UP	5  /* PF replies to AF */
  #define MBOX_DIR_PFVF_UP	6  /* PF sends messages to VF */
  #define MBOX_DIR_VFPF_UP	7  /* VF replies to PF */
  
  /* Device memory does not support unaligned access, instruct compiler to
   * not optimize the memory access when working with mailbox memory.
   */
  #define __otx2_io volatile
  
  struct otx2_mbox_dev {
  	void	    *mbase;   /* This dev's mbox region */
  	rte_spinlock_t  mbox_lock;
  	uint16_t     msg_size; /* Total msg size to be sent */
  	uint16_t     rsp_size; /* Total rsp size to be sure the reply is ok */
  	uint16_t     num_msgs; /* No of msgs sent or waiting for response */
  	uint16_t     msgs_acked; /* No of msgs for which response is received */
  };
  
  struct otx2_mbox {
  	uintptr_t hwbase;  /* Mbox region advertised by HW */
  	uintptr_t reg_base;/* CSR base for this dev */
  	uint64_t trigger;  /* Trigger mbox notification */
  	uint16_t tr_shift; /* Mbox trigger shift */
  	uint64_t rx_start; /* Offset of Rx region in mbox memory */
  	uint64_t tx_start; /* Offset of Tx region in mbox memory */
  	uint16_t rx_size;  /* Size of Rx region */
  	uint16_t tx_size;  /* Size of Tx region */
  	uint16_t ndevs;    /* The number of peers */
  	struct otx2_mbox_dev *dev;
  	uint64_t intr_offset; /* Offset to interrupt register */
  };
  
  /* Header which precedes all mbox messages */
  struct mbox_hdr {
  	uint64_t __otx2_io msg_size;   /* Total msgs size embedded */
  	uint16_t __otx2_io num_msgs;   /* No of msgs embedded */
  };
  
  /* Header which precedes every msg and is also part of it */
  struct mbox_msghdr {
  	uint16_t __otx2_io pcifunc; /* Who's sending this msg */
  	uint16_t __otx2_io id;      /* Mbox message ID */
  #define OTX2_MBOX_REQ_SIG (0xdead)
  #define OTX2_MBOX_RSP_SIG (0xbeef)
  	/* Signature, for validating corrupted msgs */
  	uint16_t __otx2_io sig;
  #define OTX2_MBOX_VERSION (0x0004)
  	/* Version of msg's structure for this ID */
  	uint16_t __otx2_io ver;
  	/* Offset of next msg within mailbox region */
  	uint16_t __otx2_io next_msgoff;
  	int __otx2_io rc; /* Msg processed response code */
  };
  
  /* Mailbox message types */
  #define MBOX_MSG_MASK				0xFFFF
  #define MBOX_MSG_INVALID			0xFFFE
  #define MBOX_MSG_MAX				0xFFFF
  
  #define MBOX_MESSAGES							\
  /* Generic mbox IDs (range 0x000 - 0x1FF) */				\
  M(READY,		0x001, ready, msg_req, ready_msg_rsp)		\
  M(ATTACH_RESOURCES,	0x002, attach_resources, rsrc_attach_req, msg_rsp)\
  M(DETACH_RESOURCES,	0x003, detach_resources, rsrc_detach_req, msg_rsp)\
  M(FREE_RSRC_CNT,	0x004, free_rsrc_cnt, msg_req, free_rsrcs_rsp)	\
  M(MSIX_OFFSET,		0x005, msix_offset, msg_req, msix_offset_rsp)	\
  M(VF_FLR,		0x006, vf_flr, msg_req, msg_rsp)		\
  M(PTP_OP,		0x007, ptp_op, ptp_req, ptp_rsp)		\
  M(GET_HW_CAP,		0x008, get_hw_cap, msg_req, get_hw_cap_rsp)	\
  M(NDC_SYNC_OP,		0x009, ndc_sync_op, ndc_sync_op, msg_rsp)	\
  /* CGX mbox IDs (range 0x200 - 0x3FF) */				\
  M(CGX_START_RXTX,	0x200, cgx_start_rxtx, msg_req, msg_rsp)	\
  M(CGX_STOP_RXTX,	0x201, cgx_stop_rxtx, msg_req, msg_rsp)		\
  M(CGX_STATS,		0x202, cgx_stats, msg_req, cgx_stats_rsp)	\
  M(CGX_MAC_ADDR_SET,	0x203, cgx_mac_addr_set, cgx_mac_addr_set_or_get,\
  				cgx_mac_addr_set_or_get)		\
  M(CGX_MAC_ADDR_GET,	0x204, cgx_mac_addr_get, cgx_mac_addr_set_or_get,\
  				cgx_mac_addr_set_or_get)		\
  M(CGX_PROMISC_ENABLE,	0x205, cgx_promisc_enable, msg_req, msg_rsp)	\
  M(CGX_PROMISC_DISABLE,	0x206, cgx_promisc_disable, msg_req, msg_rsp)	\
  M(CGX_START_LINKEVENTS, 0x207, cgx_start_linkevents, msg_req, msg_rsp)	\
  M(CGX_STOP_LINKEVENTS,	0x208, cgx_stop_linkevents, msg_req, msg_rsp)	\
  M(CGX_GET_LINKINFO,	0x209, cgx_get_linkinfo, msg_req, cgx_link_info_msg)\
  M(CGX_INTLBK_ENABLE,	0x20A, cgx_intlbk_enable, msg_req, msg_rsp)	\
  M(CGX_INTLBK_DISABLE,	0x20B, cgx_intlbk_disable, msg_req, msg_rsp)	\
  M(CGX_PTP_RX_ENABLE,	0x20C, cgx_ptp_rx_enable, msg_req, msg_rsp)	\
  M(CGX_PTP_RX_DISABLE,	0x20D, cgx_ptp_rx_disable, msg_req, msg_rsp)	\
  M(CGX_CFG_PAUSE_FRM,	0x20E, cgx_cfg_pause_frm, cgx_pause_frm_cfg,	\
  				cgx_pause_frm_cfg)			\
  M(CGX_FW_DATA_GET,	0x20F, cgx_get_aux_link_info, msg_req, cgx_fw_data) \
  M(CGX_FEC_SET,		0x210, cgx_set_fec_param, fec_mode, fec_mode) \
  M(CGX_MAC_ADDR_ADD,     0x211, cgx_mac_addr_add, cgx_mac_addr_add_req,	\
  				cgx_mac_addr_add_rsp)			\
  M(CGX_MAC_ADDR_DEL,     0x212, cgx_mac_addr_del, cgx_mac_addr_del_req,	\
  				msg_rsp)				\
  M(CGX_MAC_MAX_ENTRIES_GET, 0x213, cgx_mac_max_entries_get, msg_req,	\
  				 cgx_max_dmac_entries_get_rsp)		\
  M(CGX_SET_LINK_STATE,	0x214, cgx_set_link_state,		\
  			cgx_set_link_state_msg, msg_rsp)		\
  M(CGX_GET_PHY_MOD_TYPE, 0x215, cgx_get_phy_mod_type, msg_req,		\
  				cgx_phy_mod_type)			\
  M(CGX_SET_PHY_MOD_TYPE, 0x216, cgx_set_phy_mod_type, cgx_phy_mod_type,	\
  				msg_rsp)				\
  M(CGX_FEC_STATS,	0x217, cgx_fec_stats, msg_req, cgx_fec_stats_rsp) \
  M(CGX_SET_LINK_MODE,	0x218, cgx_set_link_mode, cgx_set_link_mode_req,\
  			       cgx_set_link_mode_rsp)			\
  /* NPA mbox IDs (range 0x400 - 0x5FF) */				\
  M(NPA_LF_ALLOC,		0x400, npa_lf_alloc, npa_lf_alloc_req,		\
  				npa_lf_alloc_rsp)			\
  M(NPA_LF_FREE,		0x401, npa_lf_free, msg_req, msg_rsp)		\
  M(NPA_AQ_ENQ,		0x402, npa_aq_enq, npa_aq_enq_req, npa_aq_enq_rsp)\
  M(NPA_HWCTX_DISABLE,	0x403, npa_hwctx_disable, hwctx_disable_req, msg_rsp)\
  /* SSO/SSOW mbox IDs (range 0x600 - 0x7FF) */				\
  M(SSO_LF_ALLOC,		0x600, sso_lf_alloc, sso_lf_alloc_req,		\
  				sso_lf_alloc_rsp)			\
  M(SSO_LF_FREE,		0x601, sso_lf_free, sso_lf_free_req, msg_rsp)	\
  M(SSOW_LF_ALLOC,	0x602, ssow_lf_alloc, ssow_lf_alloc_req, msg_rsp)\
  M(SSOW_LF_FREE,		0x603, ssow_lf_free, ssow_lf_free_req, msg_rsp)	\
  M(SSO_HW_SETCONFIG,	0x604, sso_hw_setconfig, sso_hw_setconfig,	\
  				msg_rsp)				\
  M(SSO_GRP_SET_PRIORITY,	0x605, sso_grp_set_priority, sso_grp_priority,	\
  				msg_rsp)				\
  M(SSO_GRP_GET_PRIORITY,	0x606, sso_grp_get_priority, sso_info_req,	\
  				sso_grp_priority)			\
  M(SSO_WS_CACHE_INV,	0x607, sso_ws_cache_inv, msg_req, msg_rsp)	\
  M(SSO_GRP_QOS_CONFIG,	0x608, sso_grp_qos_config, sso_grp_qos_cfg,	\
  				msg_rsp)				\
  M(SSO_GRP_GET_STATS,	0x609, sso_grp_get_stats, sso_info_req,		\
  				sso_grp_stats)				\
  M(SSO_HWS_GET_STATS,	0x610, sso_hws_get_stats, sso_info_req,		\
  				sso_hws_stats)				\
  /* TIM mbox IDs (range 0x800 - 0x9FF) */				\
  M(TIM_LF_ALLOC,		0x800, tim_lf_alloc, tim_lf_alloc_req,		\
  				tim_lf_alloc_rsp)			\
  M(TIM_LF_FREE,		0x801, tim_lf_free, tim_ring_req, msg_rsp)	\
  M(TIM_CONFIG_RING,	0x802, tim_config_ring, tim_config_req, msg_rsp)\
  M(TIM_ENABLE_RING,	0x803, tim_enable_ring, tim_ring_req,		\
  				tim_enable_rsp)				\
  M(TIM_DISABLE_RING,	0x804, tim_disable_ring, tim_ring_req, msg_rsp)	\
  /* CPT mbox IDs (range 0xA00 - 0xBFF) */				\
  M(CPT_LF_ALLOC,		0xA00, cpt_lf_alloc, cpt_lf_alloc_req_msg,	\
  			       cpt_lf_alloc_rsp_msg)			\
  M(CPT_LF_FREE,		0xA01, cpt_lf_free, msg_req, msg_rsp)		\
  M(CPT_RD_WR_REGISTER,	0xA02, cpt_rd_wr_register, cpt_rd_wr_reg_msg,	\
  			       cpt_rd_wr_reg_msg)			\
  M(CPT_SET_CRYPTO_GRP,	0xA03, cpt_set_crypto_grp,			\
  			       cpt_set_crypto_grp_req_msg,		\
  			       msg_rsp)					\
  M(CPT_INLINE_IPSEC_CFG, 0xA04, cpt_inline_ipsec_cfg,			\
  			       cpt_inline_ipsec_cfg_msg, msg_rsp)	\
  M(CPT_RX_INLINE_LF_CFG, 0xBFE, cpt_rx_inline_lf_cfg,			\
  			       cpt_rx_inline_lf_cfg_msg, msg_rsp)	\
  /* NPC mbox IDs (range 0x6000 - 0x7FFF) */				\
  M(NPC_MCAM_ALLOC_ENTRY,	0x6000, npc_mcam_alloc_entry,			\
  				npc_mcam_alloc_entry_req,		\
  				npc_mcam_alloc_entry_rsp)		\
  M(NPC_MCAM_FREE_ENTRY,	0x6001, npc_mcam_free_entry,			\
  				npc_mcam_free_entry_req, msg_rsp)	\
  M(NPC_MCAM_WRITE_ENTRY,	0x6002, npc_mcam_write_entry,			\
  				npc_mcam_write_entry_req, msg_rsp)	\
  M(NPC_MCAM_ENA_ENTRY,	0x6003, npc_mcam_ena_entry,			\
  				npc_mcam_ena_dis_entry_req, msg_rsp)	\
  M(NPC_MCAM_DIS_ENTRY,	0x6004, npc_mcam_dis_entry,			\
  				npc_mcam_ena_dis_entry_req, msg_rsp)	\
  M(NPC_MCAM_SHIFT_ENTRY,	0x6005, npc_mcam_shift_entry,			\
  				npc_mcam_shift_entry_req,		\
  				npc_mcam_shift_entry_rsp)		\
  M(NPC_MCAM_ALLOC_COUNTER,	0x6006, npc_mcam_alloc_counter,		\
  				npc_mcam_alloc_counter_req,		\
  				npc_mcam_alloc_counter_rsp)		\
  M(NPC_MCAM_FREE_COUNTER,	0x6007, npc_mcam_free_counter,		\
  				npc_mcam_oper_counter_req,		\
  				msg_rsp)				\
  M(NPC_MCAM_UNMAP_COUNTER,	0x6008, npc_mcam_unmap_counter,		\
  				npc_mcam_unmap_counter_req,		\
  				msg_rsp)				\
  M(NPC_MCAM_CLEAR_COUNTER,	0x6009, npc_mcam_clear_counter,		\
  				npc_mcam_oper_counter_req,		\
  				msg_rsp)				\
  M(NPC_MCAM_COUNTER_STATS,	0x600a, npc_mcam_counter_stats,		\
  				npc_mcam_oper_counter_req,		\
  				npc_mcam_oper_counter_rsp)		\
  M(NPC_MCAM_ALLOC_AND_WRITE_ENTRY, 0x600b, npc_mcam_alloc_and_write_entry,\
  				npc_mcam_alloc_and_write_entry_req,	\
  				npc_mcam_alloc_and_write_entry_rsp)	\
  M(NPC_GET_KEX_CFG,	  0x600c, npc_get_kex_cfg, msg_req,		\
  				npc_get_kex_cfg_rsp)			\
  M(NPC_INSTALL_FLOW,	  0x600d, npc_install_flow,			\
  				  npc_install_flow_req,			\
  				  npc_install_flow_rsp)			\
  M(NPC_DELETE_FLOW,	  0x600e, npc_delete_flow,			\
  				  npc_delete_flow_req, msg_rsp)		\
  M(NPC_MCAM_READ_ENTRY,	  0x600f, npc_mcam_read_entry,			\
  				  npc_mcam_read_entry_req,		\
  				  npc_mcam_read_entry_rsp)		\
  M(NPC_SET_PKIND,          0x6010, npc_set_pkind,                        \
  				  npc_set_pkind,                        \
  				  msg_rsp)                              \
  /* NIX mbox IDs (range 0x8000 - 0xFFFF) */				\
  M(NIX_LF_ALLOC,		0x8000, nix_lf_alloc, nix_lf_alloc_req,		\
  				nix_lf_alloc_rsp)			\
  M(NIX_LF_FREE,		0x8001, nix_lf_free, nix_lf_free_req, msg_rsp)	\
  M(NIX_AQ_ENQ,		0x8002, nix_aq_enq, nix_aq_enq_req,		\
  				nix_aq_enq_rsp)				\
  M(NIX_HWCTX_DISABLE,	0x8003, nix_hwctx_disable, hwctx_disable_req,	\
  				msg_rsp)				\
  M(NIX_TXSCH_ALLOC,	0x8004, nix_txsch_alloc, nix_txsch_alloc_req,	\
  				nix_txsch_alloc_rsp)			\
  M(NIX_TXSCH_FREE,	0x8005, nix_txsch_free,	nix_txsch_free_req,	\
  				msg_rsp)				\
  M(NIX_TXSCHQ_CFG,	0x8006, nix_txschq_cfg, nix_txschq_config,	\
  				msg_rsp)				\
  M(NIX_STATS_RST,	0x8007, nix_stats_rst, msg_req, msg_rsp)	\
  M(NIX_VTAG_CFG,		0x8008, nix_vtag_cfg, nix_vtag_config, msg_rsp)	\
  M(NIX_RSS_FLOWKEY_CFG,	0x8009, nix_rss_flowkey_cfg,			\
  				nix_rss_flowkey_cfg,			\
  				nix_rss_flowkey_cfg_rsp)		\
  M(NIX_SET_MAC_ADDR,	0x800a, nix_set_mac_addr, nix_set_mac_addr,	\
  				msg_rsp)				\
  M(NIX_SET_RX_MODE,	0x800b, nix_set_rx_mode, nix_rx_mode, msg_rsp)	\
  M(NIX_SET_HW_FRS,	0x800c, nix_set_hw_frs,	nix_frs_cfg, msg_rsp)	\
  M(NIX_LF_START_RX,	0x800d, nix_lf_start_rx, msg_req, msg_rsp)	\
  M(NIX_LF_STOP_RX,	0x800e, nix_lf_stop_rx,	msg_req, msg_rsp)	\
  M(NIX_MARK_FORMAT_CFG,	0x800f, nix_mark_format_cfg,			\
  				nix_mark_format_cfg,			\
  				nix_mark_format_cfg_rsp)		\
  M(NIX_SET_RX_CFG,	0x8010, nix_set_rx_cfg, nix_rx_cfg, msg_rsp)	\
  M(NIX_LSO_FORMAT_CFG,	0x8011, nix_lso_format_cfg, nix_lso_format_cfg,	\
  				nix_lso_format_cfg_rsp)			\
  M(NIX_LF_PTP_TX_ENABLE,	0x8013, nix_lf_ptp_tx_enable, msg_req,		\
  				msg_rsp)				\
  M(NIX_LF_PTP_TX_DISABLE,	0x8014, nix_lf_ptp_tx_disable, msg_req,	\
  				msg_rsp)				\
  M(NIX_SET_VLAN_TPID,	0x8015, nix_set_vlan_tpid, nix_set_vlan_tpid,	\
  				msg_rsp)				\
  M(NIX_BP_ENABLE,	0x8016, nix_bp_enable, nix_bp_cfg_req,		\
  				nix_bp_cfg_rsp)				\
  M(NIX_BP_DISABLE,	0x8017, nix_bp_disable,	nix_bp_cfg_req, msg_rsp)\
  M(NIX_GET_MAC_ADDR,	0x8018, nix_get_mac_addr, msg_req,		\
  				nix_get_mac_addr_rsp)			\
  M(NIX_INLINE_IPSEC_CFG,	0x8019, nix_inline_ipsec_cfg,			\
  				nix_inline_ipsec_cfg, msg_rsp)		\
  M(NIX_INLINE_IPSEC_LF_CFG,						\
  			0x801a, nix_inline_ipsec_lf_cfg,		\
  				nix_inline_ipsec_lf_cfg, msg_rsp)
  
  /* Messages initiated by AF (range 0xC00 - 0xDFF) */
  #define MBOX_UP_CGX_MESSAGES						\
  M(CGX_LINK_EVENT,	0xC00, cgx_link_event, cgx_link_info_msg,	\
  				msg_rsp)				\
  M(CGX_PTP_RX_INFO,	0xC01, cgx_ptp_rx_info, cgx_ptp_rx_info_msg,	\
  				msg_rsp)
  
  enum {
  #define M(_name, _id, _1, _2, _3) MBOX_MSG_ ## _name = _id,
  MBOX_MESSAGES
  MBOX_UP_CGX_MESSAGES
  #undef M
  };
  
  /* Mailbox message formats */
  
  #define RVU_DEFAULT_PF_FUNC     0xFFFF
  
  /* Generic request msg used for those mbox messages which
   * don't send any data in the request.
   */
  struct msg_req {
  	struct mbox_msghdr hdr;
  };
  
  /* Generic response msg used a ack or response for those mbox
   * messages which doesn't have a specific rsp msg format.
   */
  struct msg_rsp {
  	struct mbox_msghdr hdr;
  };
  
  /* RVU mailbox error codes
   * Range 256 - 300.
   */
  enum rvu_af_status {
  	RVU_INVALID_VF_ID           = -256,
  };
  
  struct ready_msg_rsp {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io sclk_feq; /* SCLK frequency */
  	uint16_t __otx2_io rclk_freq; /* RCLK frequency */
  };
  
  /* Struct to set pkind */
  struct npc_set_pkind {
  	struct mbox_msghdr hdr;
  #define OTX2_PRIV_FLAGS_DEFAULT  BIT_ULL(0)
  #define OTX2_PRIV_FLAGS_EDSA     BIT_ULL(1)
  #define OTX2_PRIV_FLAGS_HIGIG    BIT_ULL(2)
  #define OTX2_PRIV_FLAGS_CUSTOM   BIT_ULL(63)
  	uint64_t __otx2_io mode;
  #define PKIND_TX		BIT_ULL(0)
  #define PKIND_RX		BIT_ULL(1)
  	uint8_t __otx2_io dir;
  	uint8_t __otx2_io pkind; /* valid only in case custom flag */
  };
  
  /* Structure for requesting resource provisioning.
   * 'modify' flag to be used when either requesting more
   * or detach partial of a certain resource type.
   * Rest of the fields specify how many of what type to
   * be attached.
   */
  struct rsrc_attach_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io modify:1;
  	uint8_t __otx2_io npalf:1;
  	uint8_t __otx2_io nixlf:1;
  	uint16_t __otx2_io sso;
  	uint16_t __otx2_io ssow;
  	uint16_t __otx2_io timlfs;
  	uint16_t __otx2_io cptlfs;
  };
  
  /* Structure for relinquishing resources.
   * 'partial' flag to be used when relinquishing all resources
   * but only of a certain type. If not set, all resources of all
   * types provisioned to the RVU function will be detached.
   */
  struct rsrc_detach_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io partial:1;
  	uint8_t __otx2_io npalf:1;
  	uint8_t __otx2_io nixlf:1;
  	uint8_t __otx2_io sso:1;
  	uint8_t __otx2_io ssow:1;
  	uint8_t __otx2_io timlfs:1;
  	uint8_t __otx2_io cptlfs:1;
  };
  
  /* NIX Transmit schedulers */
  #define	NIX_TXSCH_LVL_SMQ 0x0
  #define	NIX_TXSCH_LVL_MDQ 0x0
  #define	NIX_TXSCH_LVL_TL4 0x1
  #define	NIX_TXSCH_LVL_TL3 0x2
  #define	NIX_TXSCH_LVL_TL2 0x3
  #define	NIX_TXSCH_LVL_TL1 0x4
  #define	NIX_TXSCH_LVL_CNT 0x5
  
  /*
   * Number of resources available to the caller.
   * In reply to MBOX_MSG_FREE_RSRC_CNT.
   */
  struct free_rsrcs_rsp {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io schq[NIX_TXSCH_LVL_CNT];
  	uint16_t __otx2_io sso;
  	uint16_t __otx2_io tim;
  	uint16_t __otx2_io ssow;
  	uint16_t __otx2_io cpt;
  	uint8_t __otx2_io npa;
  	uint8_t __otx2_io nix;
  };
  
  #define MSIX_VECTOR_INVALID	0xFFFF
  #define MAX_RVU_BLKLF_CNT	256
  
  struct msix_offset_rsp {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io npa_msixoff;
  	uint16_t __otx2_io nix_msixoff;
  	uint8_t __otx2_io sso;
  	uint8_t __otx2_io ssow;
  	uint8_t __otx2_io timlfs;
  	uint8_t __otx2_io cptlfs;
  	uint16_t __otx2_io sso_msixoff[MAX_RVU_BLKLF_CNT];
  	uint16_t __otx2_io ssow_msixoff[MAX_RVU_BLKLF_CNT];
  	uint16_t __otx2_io timlf_msixoff[MAX_RVU_BLKLF_CNT];
  	uint16_t __otx2_io cptlf_msixoff[MAX_RVU_BLKLF_CNT];
  };
  
  /* CGX mbox message formats */
  
  struct cgx_stats_rsp {
  	struct mbox_msghdr hdr;
  #define CGX_RX_STATS_COUNT	13
  #define CGX_TX_STATS_COUNT	18
  	uint64_t __otx2_io rx_stats[CGX_RX_STATS_COUNT];
  	uint64_t __otx2_io tx_stats[CGX_TX_STATS_COUNT];
  };
  
  struct cgx_fec_stats_rsp {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io fec_corr_blks;
  	uint64_t __otx2_io fec_uncorr_blks;
  };
  /* Structure for requesting the operation for
   * setting/getting mac address in the CGX interface
   */
  struct cgx_mac_addr_set_or_get {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io mac_addr[RTE_ETHER_ADDR_LEN];
  };
  
  /* Structure for requesting the operation to
   * add DMAC filter entry into CGX interface
   */
  struct cgx_mac_addr_add_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io mac_addr[RTE_ETHER_ADDR_LEN];
  };
  
  /* Structure for response against the operation to
   * add DMAC filter entry into CGX interface
   */
  struct cgx_mac_addr_add_rsp {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io index;
  };
  
  /* Structure for requesting the operation to
   * delete DMAC filter entry from CGX interface
   */
  struct cgx_mac_addr_del_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io index;
  };
  
  /* Structure for response against the operation to
   * get maximum supported DMAC filter entries
   */
  struct cgx_max_dmac_entries_get_rsp {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io max_dmac_filters;
  };
  
  struct cgx_link_user_info {
  	uint64_t __otx2_io link_up:1;
  	uint64_t __otx2_io full_duplex:1;
  	uint64_t __otx2_io lmac_type_id:4;
  	uint64_t __otx2_io speed:20; /* speed in Mbps */
  	uint64_t __otx2_io an:1; /* AN supported or not */
  	uint64_t __otx2_io fec:2; /* FEC type if enabled else 0 */
  	uint64_t __otx2_io port:8;
  #define LMACTYPE_STR_LEN 16
  	char lmac_type[LMACTYPE_STR_LEN];
  };
  
  struct cgx_link_info_msg {
  	struct mbox_msghdr hdr;
  	struct cgx_link_user_info link_info;
  };
  
  struct cgx_ptp_rx_info_msg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io ptp_en;
  };
  
  struct cgx_pause_frm_cfg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io set;
  	/* set = 1 if the request is to config pause frames */
  	/* set = 0 if the request is to fetch pause frames config */
  	uint8_t __otx2_io rx_pause;
  	uint8_t __otx2_io tx_pause;
  };
  
  struct sfp_eeprom_s {
  #define SFP_EEPROM_SIZE 256
  	uint16_t __otx2_io sff_id;
  	uint8_t __otx2_io buf[SFP_EEPROM_SIZE];
  	uint64_t __otx2_io reserved;
  };
  
  enum fec_type {
  	OTX2_FEC_NONE,
  	OTX2_FEC_BASER,
  	OTX2_FEC_RS,
  };
  
  struct phy_s {
  	uint64_t __otx2_io can_change_mod_type : 1;
  	uint64_t __otx2_io mod_type            : 1;
  };
  
  struct cgx_lmac_fwdata_s {
  	uint16_t __otx2_io rw_valid;
  	uint64_t __otx2_io supported_fec;
  	uint64_t __otx2_io supported_an;
  	uint64_t __otx2_io supported_link_modes;
  	/* Only applicable if AN is supported */
  	uint64_t __otx2_io advertised_fec;
  	uint64_t __otx2_io advertised_link_modes;
  	/* Only applicable if SFP/QSFP slot is present */
  	struct sfp_eeprom_s sfp_eeprom;
  	struct phy_s phy;
  #define LMAC_FWDATA_RESERVED_MEM 1023
  	uint64_t __otx2_io reserved[LMAC_FWDATA_RESERVED_MEM];
  };
  
  struct cgx_fw_data {
  	struct mbox_msghdr hdr;
  	struct cgx_lmac_fwdata_s fwdata;
  };
  
  struct fec_mode {
  	struct mbox_msghdr hdr;
  	int __otx2_io fec;
  };
  
  struct cgx_set_link_state_msg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io enable;
  };
  
  struct cgx_phy_mod_type {
  	struct mbox_msghdr hdr;
  	int __otx2_io mod;
  };
  
  struct cgx_set_link_mode_args {
  	uint32_t __otx2_io speed;
  	uint8_t __otx2_io duplex;
  	uint8_t __otx2_io an;
  	uint8_t __otx2_io ports;
  	uint64_t __otx2_io mode;
  };
  
  struct cgx_set_link_mode_req {
  	struct mbox_msghdr hdr;
  	struct cgx_set_link_mode_args args;
  };
  
  struct cgx_set_link_mode_rsp {
  	struct mbox_msghdr hdr;
  	int __otx2_io status;
  };
  /* NPA mbox message formats */
  
  /* NPA mailbox error codes
   * Range 301 - 400.
   */
  enum npa_af_status {
  	NPA_AF_ERR_PARAM            = -301,
  	NPA_AF_ERR_AQ_FULL          = -302,
  	NPA_AF_ERR_AQ_ENQUEUE       = -303,
  	NPA_AF_ERR_AF_LF_INVALID    = -304,
  	NPA_AF_ERR_AF_LF_ALLOC      = -305,
  	NPA_AF_ERR_LF_RESET         = -306,
  };
  
  #define NPA_AURA_SZ_0		0
  #define NPA_AURA_SZ_128		1
  #define	NPA_AURA_SZ_256		2
  #define	NPA_AURA_SZ_512		3
  #define	NPA_AURA_SZ_1K		4
  #define	NPA_AURA_SZ_2K		5
  #define	NPA_AURA_SZ_4K		6
  #define	NPA_AURA_SZ_8K		7
  #define	NPA_AURA_SZ_16K		8
  #define	NPA_AURA_SZ_32K		9
  #define	NPA_AURA_SZ_64K		10
  #define	NPA_AURA_SZ_128K	11
  #define	NPA_AURA_SZ_256K	12
  #define	NPA_AURA_SZ_512K	13
  #define	NPA_AURA_SZ_1M		14
  #define	NPA_AURA_SZ_MAX		15
  
  /* For NPA LF context alloc and init */
  struct npa_lf_alloc_req {
  	struct mbox_msghdr hdr;
  	int __otx2_io node;
  	int __otx2_io aura_sz; /* No of auras. See NPA_AURA_SZ_* */
  	uint32_t __otx2_io nr_pools; /* No of pools */
  	uint64_t __otx2_io way_mask;
  };
  
  struct npa_lf_alloc_rsp {
  	struct mbox_msghdr hdr;
  	uint32_t __otx2_io stack_pg_ptrs;  /* No of ptrs per stack page */
  	uint32_t __otx2_io stack_pg_bytes; /* Size of stack page */
  	uint16_t __otx2_io qints; /* NPA_AF_CONST::QINTS */
  };
  
  /* NPA AQ enqueue msg */
  struct npa_aq_enq_req {
  	struct mbox_msghdr hdr;
  	uint32_t __otx2_io aura_id;
  	uint8_t __otx2_io ctype;
  	uint8_t __otx2_io op;
  	union {
  		/* Valid when op == WRITE/INIT and ctype == AURA.
  		 * LF fills the pool_id in aura.pool_addr. AF will translate
  		 * the pool_id to pool context pointer.
  		 */
  		__otx2_io struct npa_aura_s aura;
  		/* Valid when op == WRITE/INIT and ctype == POOL */
  		__otx2_io struct npa_pool_s pool;
  	};
  	/* Mask data when op == WRITE (1=write, 0=don't write) */
  	union {
  		/* Valid when op == WRITE and ctype == AURA */
  		__otx2_io struct npa_aura_s aura_mask;
  		/* Valid when op == WRITE and ctype == POOL */
  		__otx2_io struct npa_pool_s pool_mask;
  	};
  };
  
  struct npa_aq_enq_rsp {
  	struct mbox_msghdr hdr;
  	union {
  		/* Valid when op == READ and ctype == AURA */
  		__otx2_io struct npa_aura_s aura;
  		/* Valid when op == READ and ctype == POOL */
  		__otx2_io struct npa_pool_s pool;
  	};
  };
  
  /* Disable all contexts of type 'ctype' */
  struct hwctx_disable_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io ctype;
  };
  
  /* NIX mbox message formats */
  
  /* NIX mailbox error codes
   * Range 401 - 500.
   */
  enum nix_af_status {
  	NIX_AF_ERR_PARAM            = -401,
  	NIX_AF_ERR_AQ_FULL          = -402,
  	NIX_AF_ERR_AQ_ENQUEUE       = -403,
  	NIX_AF_ERR_AF_LF_INVALID    = -404,
  	NIX_AF_ERR_AF_LF_ALLOC      = -405,
  	NIX_AF_ERR_TLX_ALLOC_FAIL   = -406,
  	NIX_AF_ERR_TLX_INVALID      = -407,
  	NIX_AF_ERR_RSS_SIZE_INVALID = -408,
  	NIX_AF_ERR_RSS_GRPS_INVALID = -409,
  	NIX_AF_ERR_FRS_INVALID      = -410,
  	NIX_AF_ERR_RX_LINK_INVALID  = -411,
  	NIX_AF_INVAL_TXSCHQ_CFG     = -412,
  	NIX_AF_SMQ_FLUSH_FAILED     = -413,
  	NIX_AF_ERR_LF_RESET         = -414,
  	NIX_AF_ERR_RSS_NOSPC_FIELD  = -415,
  	NIX_AF_ERR_RSS_NOSPC_ALGO   = -416,
  	NIX_AF_ERR_MARK_CFG_FAIL    = -417,
  	NIX_AF_ERR_LSO_CFG_FAIL     = -418,
  	NIX_AF_INVAL_NPA_PF_FUNC    = -419,
  	NIX_AF_INVAL_SSO_PF_FUNC    = -420,
  	NIX_AF_ERR_TX_VTAG_NOSPC    = -421,
  };
  
  /* For NIX LF context alloc and init */
  struct nix_lf_alloc_req {
  	struct mbox_msghdr hdr;
  	int __otx2_io node;
  	uint32_t __otx2_io rq_cnt;   /* No of receive queues */
  	uint32_t __otx2_io sq_cnt;   /* No of send queues */
  	uint32_t __otx2_io cq_cnt;   /* No of completion queues */
  	uint8_t __otx2_io xqe_sz;
  	uint16_t __otx2_io rss_sz;
  	uint8_t __otx2_io rss_grps;
  	uint16_t __otx2_io npa_func;
  	/* RVU_DEFAULT_PF_FUNC == default pf_func associated with lf */
  	uint16_t __otx2_io sso_func;
  	uint64_t __otx2_io rx_cfg;   /* See NIX_AF_LF(0..127)_RX_CFG */
  	uint64_t __otx2_io way_mask;
  #define NIX_LF_RSS_TAG_LSB_AS_ADDER BIT_ULL(0)
  	uint64_t flags;
  };
  
  struct nix_lf_alloc_rsp {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io sqb_size;
  	uint16_t __otx2_io rx_chan_base;
  	uint16_t __otx2_io tx_chan_base;
  	uint8_t __otx2_io rx_chan_cnt; /* Total number of RX channels */
  	uint8_t __otx2_io tx_chan_cnt; /* Total number of TX channels */
  	uint8_t __otx2_io lso_tsov4_idx;
  	uint8_t __otx2_io lso_tsov6_idx;
  	uint8_t __otx2_io mac_addr[RTE_ETHER_ADDR_LEN];
  	uint8_t __otx2_io lf_rx_stats; /* NIX_AF_CONST1::LF_RX_STATS */
  	uint8_t __otx2_io lf_tx_stats; /* NIX_AF_CONST1::LF_TX_STATS */
  	uint16_t __otx2_io cints; /* NIX_AF_CONST2::CINTS */
  	uint16_t __otx2_io qints; /* NIX_AF_CONST2::QINTS */
  	uint8_t __otx2_io hw_rx_tstamp_en; /*set if rx timestamping enabled */
  };
  
  struct nix_lf_free_req {
  	struct mbox_msghdr hdr;
  #define NIX_LF_DISABLE_FLOWS   0x1
  	uint64_t __otx2_io flags;
  };
  
  /* NIX AQ enqueue msg */
  struct nix_aq_enq_req {
  	struct mbox_msghdr hdr;
  	uint32_t __otx2_io qidx;
  	uint8_t __otx2_io ctype;
  	uint8_t __otx2_io op;
  	union {
  		/* Valid when op == WRITE/INIT and ctype == NIX_AQ_CTYPE_RQ */
  		__otx2_io struct nix_rq_ctx_s rq;
  		/* Valid when op == WRITE/INIT and ctype == NIX_AQ_CTYPE_SQ */
  		__otx2_io struct nix_sq_ctx_s sq;
  		/* Valid when op == WRITE/INIT and ctype == NIX_AQ_CTYPE_CQ */
  		__otx2_io struct nix_cq_ctx_s cq;
  		/* Valid when op == WRITE/INIT and ctype == NIX_AQ_CTYPE_RSS */
  		__otx2_io struct nix_rsse_s rss;
  		/* Valid when op == WRITE/INIT and ctype == NIX_AQ_CTYPE_MCE */
  		__otx2_io struct nix_rx_mce_s mce;
  	};
  	/* Mask data when op == WRITE (1=write, 0=don't write) */
  	union {
  		/* Valid when op == WRITE and ctype == NIX_AQ_CTYPE_RQ */
  		__otx2_io struct nix_rq_ctx_s rq_mask;
  		/* Valid when op == WRITE and ctype == NIX_AQ_CTYPE_SQ */
  		__otx2_io struct nix_sq_ctx_s sq_mask;
  		/* Valid when op == WRITE and ctype == NIX_AQ_CTYPE_CQ */
  		__otx2_io struct nix_cq_ctx_s cq_mask;
  		/* Valid when op == WRITE and ctype == NIX_AQ_CTYPE_RSS */
  		__otx2_io struct nix_rsse_s rss_mask;
  		/* Valid when op == WRITE and ctype == NIX_AQ_CTYPE_MCE */
  		__otx2_io struct nix_rx_mce_s mce_mask;
  	};
  };
  
  struct nix_aq_enq_rsp {
  	struct mbox_msghdr hdr;
  	union {
  		__otx2_io struct nix_rq_ctx_s rq;
  		__otx2_io struct nix_sq_ctx_s sq;
  		__otx2_io struct nix_cq_ctx_s cq;
  		__otx2_io struct nix_rsse_s   rss;
  		__otx2_io struct nix_rx_mce_s mce;
  	};
  };
  
  /* Tx scheduler/shaper mailbox messages */
  
  #define MAX_TXSCHQ_PER_FUNC	128
  
  struct nix_txsch_alloc_req {
  	struct mbox_msghdr hdr;
  	/* Scheduler queue count request at each level */
  	uint16_t __otx2_io schq_contig[NIX_TXSCH_LVL_CNT]; /* Contig. queues */
  	uint16_t __otx2_io schq[NIX_TXSCH_LVL_CNT]; /* Non-Contig. queues */
  };
  
  struct nix_txsch_alloc_rsp {
  	struct mbox_msghdr hdr;
  	/* Scheduler queue count allocated at each level */
  	uint16_t __otx2_io schq_contig[NIX_TXSCH_LVL_CNT]; /* Contig. queues */
  	uint16_t __otx2_io schq[NIX_TXSCH_LVL_CNT]; /* Non-Contig. queues */
  	/* Scheduler queue list allocated at each level */
  	uint16_t __otx2_io
  		schq_contig_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC];
  	uint16_t __otx2_io schq_list[NIX_TXSCH_LVL_CNT][MAX_TXSCHQ_PER_FUNC];
  	/* Traffic aggregation scheduler level */
  	uint8_t  __otx2_io aggr_level;
  	/* Aggregation lvl's RR_PRIO config */
  	uint8_t  __otx2_io aggr_lvl_rr_prio;
  	/* LINKX_CFG CSRs mapped to TL3 or TL2's index ? */
  	uint8_t  __otx2_io link_cfg_lvl;
  };
  
  struct nix_txsch_free_req {
  	struct mbox_msghdr hdr;
  #define TXSCHQ_FREE_ALL BIT_ULL(0)
  	uint16_t __otx2_io flags;
  	/* Scheduler queue level to be freed */
  	uint16_t __otx2_io schq_lvl;
  	/* List of scheduler queues to be freed */
  	uint16_t __otx2_io schq;
  };
  
  struct nix_txschq_config {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io lvl; /* SMQ/MDQ/TL4/TL3/TL2/TL1 */
  #define TXSCHQ_IDX_SHIFT 16
  #define TXSCHQ_IDX_MASK (BIT_ULL(10) - 1)
  #define TXSCHQ_IDX(reg, shift) (((reg) >> (shift)) & TXSCHQ_IDX_MASK)
  	uint8_t __otx2_io num_regs;
  #define MAX_REGS_PER_MBOX_MSG 20
  	uint64_t __otx2_io reg[MAX_REGS_PER_MBOX_MSG];
  	uint64_t __otx2_io regval[MAX_REGS_PER_MBOX_MSG];
  };
  
  struct nix_vtag_config {
  	struct mbox_msghdr hdr;
  	/* '0' for 4 octet VTAG, '1' for 8 octet VTAG */
  	uint8_t __otx2_io vtag_size;
  	/* cfg_type is '0' for tx vlan cfg
  	 * cfg_type is '1' for rx vlan cfg
  	 */
  	uint8_t __otx2_io cfg_type;
  	union {
  		/* Valid when cfg_type is '0' */
  		struct {
  			uint64_t __otx2_io vtag0;
  			uint64_t __otx2_io vtag1;
  
  			/* cfg_vtag0 & cfg_vtag1 fields are valid
  			 * when free_vtag0 & free_vtag1 are '0's.
  			 */
  			/* cfg_vtag0 = 1 to configure vtag0 */
  			uint8_t __otx2_io cfg_vtag0 :1;
  			/* cfg_vtag1 = 1 to configure vtag1 */
  			uint8_t __otx2_io cfg_vtag1 :1;
  
  			/* vtag0_idx & vtag1_idx are only valid when
  			 * both cfg_vtag0 & cfg_vtag1 are '0's,
  			 * these fields are used along with free_vtag0
  			 * & free_vtag1 to free the nix lf's tx_vlan
  			 * configuration.
  			 *
  			 * Denotes the indices of tx_vtag def registers
  			 * that needs to be cleared and freed.
  			 */
  			int __otx2_io vtag0_idx;
  			int __otx2_io vtag1_idx;
  
  			/* Free_vtag0 & free_vtag1 fields are valid
  			 * when cfg_vtag0 & cfg_vtag1 are '0's.
  			 */
  			/* Free_vtag0 = 1 clears vtag0 configuration
  			 * vtag0_idx denotes the index to be cleared.
  			 */
  			uint8_t __otx2_io free_vtag0 :1;
  			/* Free_vtag1 = 1 clears vtag1 configuration
  			 * vtag1_idx denotes the index to be cleared.
  			 */
  			uint8_t __otx2_io free_vtag1 :1;
  		} tx;
  
  		/* Valid when cfg_type is '1' */
  		struct {
  			/* Rx vtag type index, valid values are in 0..7 range */
  			uint8_t __otx2_io vtag_type;
  			/* Rx vtag strip */
  			uint8_t __otx2_io strip_vtag :1;
  			/* Rx vtag capture */
  			uint8_t __otx2_io capture_vtag :1;
  		} rx;
  	};
  };
  
  struct nix_vtag_config_rsp {
  	struct mbox_msghdr hdr;
  	/* Indices of tx_vtag def registers used to configure
  	 * tx vtag0 & vtag1 headers, these indices are valid
  	 * when nix_vtag_config mbox requested for vtag0 and/
  	 * or vtag1 configuration.
  	 */
  	int __otx2_io vtag0_idx;
  	int __otx2_io vtag1_idx;
  };
  
  struct nix_rss_flowkey_cfg {
  	struct mbox_msghdr hdr;
  	int __otx2_io mcam_index;  /* MCAM entry index to modify */
  	uint32_t __otx2_io flowkey_cfg; /* Flowkey types selected */
  #define FLOW_KEY_TYPE_PORT     BIT(0)
  #define FLOW_KEY_TYPE_IPV4     BIT(1)
  #define FLOW_KEY_TYPE_IPV6     BIT(2)
  #define FLOW_KEY_TYPE_TCP      BIT(3)
  #define FLOW_KEY_TYPE_UDP      BIT(4)
  #define FLOW_KEY_TYPE_SCTP     BIT(5)
  #define FLOW_KEY_TYPE_NVGRE    BIT(6)
  #define FLOW_KEY_TYPE_VXLAN    BIT(7)
  #define FLOW_KEY_TYPE_GENEVE   BIT(8)
  #define FLOW_KEY_TYPE_ETH_DMAC BIT(9)
  #define FLOW_KEY_TYPE_IPV6_EXT BIT(10)
  #define FLOW_KEY_TYPE_GTPU       BIT(11)
  #define FLOW_KEY_TYPE_INNR_IPV4     BIT(12)
  #define FLOW_KEY_TYPE_INNR_IPV6     BIT(13)
  #define FLOW_KEY_TYPE_INNR_TCP      BIT(14)
  #define FLOW_KEY_TYPE_INNR_UDP      BIT(15)
  #define FLOW_KEY_TYPE_INNR_SCTP     BIT(16)
  #define FLOW_KEY_TYPE_INNR_ETH_DMAC BIT(17)
  #define FLOW_KEY_TYPE_L4_DST BIT(28)
  #define FLOW_KEY_TYPE_L4_SRC BIT(29)
  #define FLOW_KEY_TYPE_L3_DST BIT(30)
  #define FLOW_KEY_TYPE_L3_SRC BIT(31)
  	uint8_t	__otx2_io group;       /* RSS context or group */
  };
  
  struct nix_rss_flowkey_cfg_rsp {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io alg_idx; /* Selected algo index */
  };
  
  struct nix_set_mac_addr {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io mac_addr[RTE_ETHER_ADDR_LEN];
  };
  
  struct nix_get_mac_addr_rsp {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io mac_addr[RTE_ETHER_ADDR_LEN];
  };
  
  struct nix_mark_format_cfg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io offset;
  	uint8_t __otx2_io y_mask;
  	uint8_t __otx2_io y_val;
  	uint8_t __otx2_io r_mask;
  	uint8_t __otx2_io r_val;
  };
  
  struct nix_mark_format_cfg_rsp {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io mark_format_idx;
  };
  
  struct nix_lso_format_cfg {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io field_mask;
  	uint64_t __otx2_io fields[NIX_LSO_FIELD_MAX];
  };
  
  struct nix_lso_format_cfg_rsp {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io lso_format_idx;
  };
  
  struct nix_rx_mode {
  	struct mbox_msghdr hdr;
  #define NIX_RX_MODE_UCAST    BIT(0)
  #define NIX_RX_MODE_PROMISC  BIT(1)
  #define NIX_RX_MODE_ALLMULTI BIT(2)
  	uint16_t __otx2_io mode;
  };
  
  struct nix_rx_cfg {
  	struct mbox_msghdr hdr;
  #define NIX_RX_OL3_VERIFY   BIT(0)
  #define NIX_RX_OL4_VERIFY   BIT(1)
  	uint8_t __otx2_io len_verify; /* Outer L3/L4 len check */
  #define NIX_RX_CSUM_OL4_VERIFY  BIT(0)
  	uint8_t __otx2_io csum_verify; /* Outer L4 checksum verification */
  };
  
  struct nix_frs_cfg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io update_smq;    /* Update SMQ's min/max lens */
  	uint8_t __otx2_io update_minlen; /* Set minlen also */
  	uint8_t __otx2_io sdp_link;      /* Set SDP RX link */
  	uint16_t __otx2_io maxlen;
  	uint16_t __otx2_io minlen;
  };
  
  struct nix_set_vlan_tpid {
  	struct mbox_msghdr hdr;
  #define NIX_VLAN_TYPE_INNER 0
  #define NIX_VLAN_TYPE_OUTER 1
  	uint8_t __otx2_io vlan_type;
  	uint16_t __otx2_io tpid;
  };
  
  struct nix_bp_cfg_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io chan_base; /* Starting channel number */
  	uint8_t __otx2_io chan_cnt; /* Number of channels */
  	uint8_t __otx2_io bpid_per_chan;
  	/* bpid_per_chan = 0  assigns single bp id for range of channels */
  	/* bpid_per_chan = 1 assigns separate bp id for each channel */
  };
  
  /* PF can be mapped to either CGX or LBK interface,
   * so maximum 64 channels are possible.
   */
  #define NIX_MAX_CHAN	64
  struct nix_bp_cfg_rsp {
  	struct mbox_msghdr hdr;
  	/* Channel and bpid mapping */
  	uint16_t __otx2_io chan_bpid[NIX_MAX_CHAN];
  	/* Number of channel for which bpids are assigned */
  	uint8_t __otx2_io chan_cnt;
  };
  
  /* Global NIX inline IPSec configuration */
  struct nix_inline_ipsec_cfg {
  	struct mbox_msghdr hdr;
  	uint32_t __otx2_io cpt_credit;
  	struct {
  		uint8_t __otx2_io egrp;
  		uint8_t __otx2_io opcode;
  	} gen_cfg;
  	struct {
  		uint16_t __otx2_io cpt_pf_func;
  		uint8_t __otx2_io cpt_slot;
  	} inst_qsel;
  	uint8_t __otx2_io enable;
  };
  
  /* Per NIX LF inline IPSec configuration */
  struct nix_inline_ipsec_lf_cfg {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io sa_base_addr;
  	struct {
  		uint32_t __otx2_io tag_const;
  		uint16_t __otx2_io lenm1_max;
  		uint8_t __otx2_io sa_pow2_size;
  		uint8_t __otx2_io tt;
  	} ipsec_cfg0;
  	struct {
  		uint32_t __otx2_io sa_idx_max;
  		uint8_t __otx2_io sa_idx_w;
  	} ipsec_cfg1;
  	uint8_t __otx2_io enable;
  };
  
  /* SSO mailbox error codes
   * Range 501 - 600.
   */
  enum sso_af_status {
  	SSO_AF_ERR_PARAM	= -501,
  	SSO_AF_ERR_LF_INVALID	= -502,
  	SSO_AF_ERR_AF_LF_ALLOC	= -503,
  	SSO_AF_ERR_GRP_EBUSY	= -504,
  	SSO_AF_INVAL_NPA_PF_FUNC = -505,
  };
  
  struct sso_lf_alloc_req {
  	struct mbox_msghdr hdr;
  	int __otx2_io node;
  	uint16_t __otx2_io hwgrps;
  };
  
  struct sso_lf_alloc_rsp {
  	struct mbox_msghdr hdr;
  	uint32_t __otx2_io xaq_buf_size;
  	uint32_t __otx2_io xaq_wq_entries;
  	uint32_t __otx2_io in_unit_entries;
  	uint16_t __otx2_io hwgrps;
  };
  
  struct sso_lf_free_req {
  	struct mbox_msghdr hdr;
  	int __otx2_io node;
  	uint16_t __otx2_io hwgrps;
  };
  
  /* SSOW mailbox error codes
   * Range 601 - 700.
   */
  enum ssow_af_status {
  	SSOW_AF_ERR_PARAM	= -601,
  	SSOW_AF_ERR_LF_INVALID	= -602,
  	SSOW_AF_ERR_AF_LF_ALLOC	= -603,
  };
  
  struct ssow_lf_alloc_req {
  	struct mbox_msghdr hdr;
  	int __otx2_io node;
  	uint16_t __otx2_io hws;
  };
  
  struct ssow_lf_free_req {
  	struct mbox_msghdr hdr;
  	int __otx2_io node;
  	uint16_t __otx2_io hws;
  };
  
  struct sso_hw_setconfig {
  	struct mbox_msghdr hdr;
  	uint32_t __otx2_io npa_aura_id;
  	uint16_t __otx2_io npa_pf_func;
  	uint16_t __otx2_io hwgrps;
  };
  
  struct sso_info_req {
  	struct mbox_msghdr hdr;
  	union {
  		uint16_t __otx2_io grp;
  		uint16_t __otx2_io hws;
  	};
  };
  
  struct sso_grp_priority {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io grp;
  	uint8_t __otx2_io priority;
  	uint8_t __otx2_io affinity;
  	uint8_t __otx2_io weight;
  };
  
  struct sso_grp_qos_cfg {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io grp;
  	uint32_t __otx2_io xaq_limit;
  	uint16_t __otx2_io taq_thr;
  	uint16_t __otx2_io iaq_thr;
  };
  
  struct sso_grp_stats {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io grp;
  	uint64_t __otx2_io ws_pc;
  	uint64_t __otx2_io ext_pc;
  	uint64_t __otx2_io wa_pc;
  	uint64_t __otx2_io ts_pc;
  	uint64_t __otx2_io ds_pc;
  	uint64_t __otx2_io dq_pc;
  	uint64_t __otx2_io aw_status;
  	uint64_t __otx2_io page_cnt;
  };
  
  struct sso_hws_stats {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io hws;
  	uint64_t __otx2_io arbitration;
  };
  
  /* CPT mailbox error codes
   * Range 901 - 1000.
   */
  enum cpt_af_status {
  	CPT_AF_ERR_PARAM		= -901,
  	CPT_AF_ERR_GRP_INVALID		= -902,
  	CPT_AF_ERR_LF_INVALID		= -903,
  	CPT_AF_ERR_ACCESS_DENIED	= -904,
  	CPT_AF_ERR_SSO_PF_FUNC_INVALID	= -905,
  	CPT_AF_ERR_NIX_PF_FUNC_INVALID	= -906,
  	CPT_AF_ERR_INLINE_IPSEC_INB_ENA	= -907,
  	CPT_AF_ERR_INLINE_IPSEC_OUT_ENA	= -908
  };
  
  /* CPT mbox message formats */
  
  struct cpt_rd_wr_reg_msg {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io reg_offset;
  	uint64_t __otx2_io *ret_val;
  	uint64_t __otx2_io val;
  	uint8_t __otx2_io is_write;
  };
  
  struct cpt_set_crypto_grp_req_msg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io crypto_eng_grp;
  };
  
  struct cpt_lf_alloc_req_msg {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io nix_pf_func;
  	uint16_t __otx2_io sso_pf_func;
  };
  
  struct cpt_lf_alloc_rsp_msg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io crypto_eng_grp;
  };
  
  #define CPT_INLINE_INBOUND	0
  #define CPT_INLINE_OUTBOUND	1
  
  struct cpt_inline_ipsec_cfg_msg {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io enable;
  	uint8_t __otx2_io slot;
  	uint8_t __otx2_io dir;
  	uint16_t __otx2_io sso_pf_func; /* Inbound path SSO_PF_FUNC */
  	uint16_t __otx2_io nix_pf_func; /* Outbound path NIX_PF_FUNC */
  };
  
  struct cpt_rx_inline_lf_cfg_msg {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io sso_pf_func;
  };
  
  /* NPC mbox message structs */
  
  #define NPC_MCAM_ENTRY_INVALID	0xFFFF
  #define NPC_MCAM_INVALID_MAP	0xFFFF
  
  /* NPC mailbox error codes
   * Range 701 - 800.
   */
  enum npc_af_status {
  	NPC_MCAM_INVALID_REQ	= -701,
  	NPC_MCAM_ALLOC_DENIED	= -702,
  	NPC_MCAM_ALLOC_FAILED	= -703,
  	NPC_MCAM_PERM_DENIED	= -704,
  };
  
  struct npc_mcam_alloc_entry_req {
  	struct mbox_msghdr hdr;
  #define NPC_MAX_NONCONTIG_ENTRIES	256
  	uint8_t __otx2_io contig;   /* Contiguous entries ? */
  #define NPC_MCAM_ANY_PRIO		0
  #define NPC_MCAM_LOWER_PRIO		1
  #define NPC_MCAM_HIGHER_PRIO		2
  	uint8_t __otx2_io priority; /* Lower or higher w.r.t ref_entry */
  	uint16_t __otx2_io ref_entry;
  	uint16_t __otx2_io count;    /* Number of entries requested */
  };
  
  struct npc_mcam_alloc_entry_rsp {
  	struct mbox_msghdr hdr;
  	/* Entry alloc'ed or start index if contiguous.
  	 * Invalid in case of non-contiguous.
  	 */
  	uint16_t __otx2_io entry;
  	uint16_t __otx2_io count; /* Number of entries allocated */
  	uint16_t __otx2_io free_count; /* Number of entries available */
  	uint16_t __otx2_io entry_list[NPC_MAX_NONCONTIG_ENTRIES];
  };
  
  struct npc_mcam_free_entry_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io entry; /* Entry index to be freed */
  	uint8_t __otx2_io all;   /* Free all entries alloc'ed to this PFVF */
  };
  
  struct mcam_entry {
  #define NPC_MAX_KWS_IN_KEY	7 /* Number of keywords in max key width */
  	uint64_t __otx2_io kw[NPC_MAX_KWS_IN_KEY];
  	uint64_t __otx2_io kw_mask[NPC_MAX_KWS_IN_KEY];
  	uint64_t __otx2_io action;
  	uint64_t __otx2_io vtag_action;
  };
  
  struct npc_mcam_write_entry_req {
  	struct mbox_msghdr hdr;
  	struct mcam_entry entry_data;
  	uint16_t __otx2_io entry; /* MCAM entry to write this match key */
  	uint16_t __otx2_io cntr;	 /* Counter for this MCAM entry */
  	uint8_t __otx2_io intf;	 /* Rx or Tx interface */
  	uint8_t __otx2_io enable_entry;/* Enable this MCAM entry ? */
  	uint8_t __otx2_io set_cntr;    /* Set counter for this entry ? */
  };
  
  /* Enable/Disable a given entry */
  struct npc_mcam_ena_dis_entry_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io entry;
  };
  
  struct npc_mcam_shift_entry_req {
  	struct mbox_msghdr hdr;
  #define NPC_MCAM_MAX_SHIFTS	64
  	uint16_t __otx2_io curr_entry[NPC_MCAM_MAX_SHIFTS];
  	uint16_t __otx2_io new_entry[NPC_MCAM_MAX_SHIFTS];
  	uint16_t __otx2_io shift_count; /* Number of entries to shift */
  };
  
  struct npc_mcam_shift_entry_rsp {
  	struct mbox_msghdr hdr;
  	/* Index in 'curr_entry', not entry itself */
  	uint16_t __otx2_io failed_entry_idx;
  };
  
  struct npc_mcam_alloc_counter_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io contig;	/* Contiguous counters ? */
  #define NPC_MAX_NONCONTIG_COUNTERS 64
  	uint16_t __otx2_io count;	/* Number of counters requested */
  };
  
  struct npc_mcam_alloc_counter_rsp {
  	struct mbox_msghdr hdr;
  	/* Counter alloc'ed or start idx if contiguous.
  	 * Invalid incase of non-contiguous.
  	 */
  	uint16_t __otx2_io cntr;
  	uint16_t __otx2_io count; /* Number of counters allocated */
  	uint16_t __otx2_io cntr_list[NPC_MAX_NONCONTIG_COUNTERS];
  };
  
  struct npc_mcam_oper_counter_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io cntr; /* Free a counter or clear/fetch it's stats */
  };
  
  struct npc_mcam_oper_counter_rsp {
  	struct mbox_msghdr hdr;
  	/* valid only while fetching counter's stats */
  	uint64_t __otx2_io stat;
  };
  
  struct npc_mcam_unmap_counter_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io cntr;
  	uint16_t __otx2_io entry; /* Entry and counter to be unmapped */
  	uint8_t __otx2_io all;   /* Unmap all entries using this counter ? */
  };
  
  struct npc_mcam_alloc_and_write_entry_req {
  	struct mbox_msghdr hdr;
  	struct mcam_entry entry_data;
  	uint16_t __otx2_io ref_entry;
  	uint8_t __otx2_io priority;    /* Lower or higher w.r.t ref_entry */
  	uint8_t __otx2_io intf;	 /* Rx or Tx interface */
  	uint8_t __otx2_io enable_entry;/* Enable this MCAM entry ? */
  	uint8_t __otx2_io alloc_cntr;  /* Allocate counter and map ? */
  };
  
  struct npc_mcam_alloc_and_write_entry_rsp {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io entry;
  	uint16_t __otx2_io cntr;
  };
  
  struct npc_get_kex_cfg_rsp {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io rx_keyx_cfg;   /* NPC_AF_INTF(0)_KEX_CFG */
  	uint64_t __otx2_io tx_keyx_cfg;   /* NPC_AF_INTF(1)_KEX_CFG */
  #define NPC_MAX_INTF	2
  #define NPC_MAX_LID	8
  #define NPC_MAX_LT	16
  #define NPC_MAX_LD	2
  #define NPC_MAX_LFL	16
  	/* NPC_AF_KEX_LDATA(0..1)_FLAGS_CFG */
  	uint64_t __otx2_io kex_ld_flags[NPC_MAX_LD];
  	/* NPC_AF_INTF(0..1)_LID(0..7)_LT(0..15)_LD(0..1)_CFG */
  	uint64_t __otx2_io
  	intf_lid_lt_ld[NPC_MAX_INTF][NPC_MAX_LID][NPC_MAX_LT][NPC_MAX_LD];
  	/* NPC_AF_INTF(0..1)_LDATA(0..1)_FLAGS(0..15)_CFG */
  	uint64_t __otx2_io
  	intf_ld_flags[NPC_MAX_INTF][NPC_MAX_LD][NPC_MAX_LFL];
  #define MKEX_NAME_LEN 128
  	uint8_t __otx2_io mkex_pfl_name[MKEX_NAME_LEN];
  };
  
  enum header_fields {
  	NPC_DMAC,
  	NPC_SMAC,
  	NPC_ETYPE,
  	NPC_OUTER_VID,
  	NPC_TOS,
  	NPC_SIP_IPV4,
  	NPC_DIP_IPV4,
  	NPC_SIP_IPV6,
  	NPC_DIP_IPV6,
  	NPC_SPORT_TCP,
  	NPC_DPORT_TCP,
  	NPC_SPORT_UDP,
  	NPC_DPORT_UDP,
  	NPC_HEADER_FIELDS_MAX,
  };
  
  struct flow_msg {
  	unsigned char __otx2_io dmac[6];
  	unsigned char __otx2_io smac[6];
  	uint16_t __otx2_io etype;
  	uint16_t __otx2_io vlan_etype;
  	uint16_t __otx2_io vlan_tci;
  	union {
  		uint32_t __otx2_io ip4src;
  		uint32_t __otx2_io ip6src[4];
  	};
  	union {
  		uint32_t __otx2_io ip4dst;
  		uint32_t __otx2_io ip6dst[4];
  	};
  	uint8_t __otx2_io tos;
  	uint8_t __otx2_io ip_ver;
  	uint8_t __otx2_io ip_proto;
  	uint8_t __otx2_io tc;
  	uint16_t __otx2_io sport;
  	uint16_t __otx2_io dport;
  };
  
  struct npc_install_flow_req {
  	struct mbox_msghdr hdr;
  	struct flow_msg packet;
  	struct flow_msg mask;
  	uint64_t __otx2_io features;
  	uint16_t __otx2_io entry;
  	uint16_t __otx2_io channel;
  	uint8_t __otx2_io intf;
  	uint8_t __otx2_io set_cntr;
  	uint8_t __otx2_io default_rule;
  	/* Overwrite(0) or append(1) flow to default rule? */
  	uint8_t __otx2_io append;
  	uint16_t __otx2_io vf;
  	/* action */
  	uint32_t __otx2_io index;
  	uint16_t __otx2_io match_id;
  	uint8_t __otx2_io flow_key_alg;
  	uint8_t __otx2_io op;
  	/* vtag action */
  	uint8_t __otx2_io vtag0_type;
  	uint8_t __otx2_io vtag0_valid;
  	uint8_t __otx2_io vtag1_type;
  	uint8_t __otx2_io vtag1_valid;
  
  	/* vtag tx action */
  	uint16_t __otx2_io vtag0_def;
  	uint8_t  __otx2_io vtag0_op;
  	uint16_t __otx2_io vtag1_def;
  	uint8_t  __otx2_io vtag1_op;
  };
  
  struct npc_install_flow_rsp {
  	struct mbox_msghdr hdr;
  	/* Negative if no counter else counter number */
  	int __otx2_io counter;
  };
  
  struct npc_delete_flow_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io entry;
  	uint16_t __otx2_io start;/*Disable range of entries */
  	uint16_t __otx2_io end;
  	uint8_t __otx2_io all; /* PF + VFs */
  };
  
  struct npc_mcam_read_entry_req {
  	struct mbox_msghdr hdr;
  	/* MCAM entry to read */
  	uint16_t __otx2_io entry;
  };
  
  struct npc_mcam_read_entry_rsp {
  	struct mbox_msghdr hdr;
  	struct mcam_entry entry_data;
  	uint8_t __otx2_io intf;
  	uint8_t __otx2_io enable;
  };
  
  /* TIM mailbox error codes
   * Range 801 - 900.
   */
  enum tim_af_status {
  	TIM_AF_NO_RINGS_LEFT			= -801,
  	TIM_AF_INVALID_NPA_PF_FUNC		= -802,
  	TIM_AF_INVALID_SSO_PF_FUNC		= -803,
  	TIM_AF_RING_STILL_RUNNING		= -804,
  	TIM_AF_LF_INVALID			= -805,
  	TIM_AF_CSIZE_NOT_ALIGNED		= -806,
  	TIM_AF_CSIZE_TOO_SMALL			= -807,
  	TIM_AF_CSIZE_TOO_BIG			= -808,
  	TIM_AF_INTERVAL_TOO_SMALL		= -809,
  	TIM_AF_INVALID_BIG_ENDIAN_VALUE		= -810,
  	TIM_AF_INVALID_CLOCK_SOURCE		= -811,
  	TIM_AF_GPIO_CLK_SRC_NOT_ENABLED		= -812,
  	TIM_AF_INVALID_BSIZE			= -813,
  	TIM_AF_INVALID_ENABLE_PERIODIC		= -814,
  	TIM_AF_INVALID_ENABLE_DONTFREE		= -815,
  	TIM_AF_ENA_DONTFRE_NSET_PERIODIC	= -816,
  	TIM_AF_RING_ALREADY_DISABLED		= -817,
  };
  
  enum tim_clk_srcs {
  	TIM_CLK_SRCS_TENNS	= 0,
  	TIM_CLK_SRCS_GPIO	= 1,
  	TIM_CLK_SRCS_GTI	= 2,
  	TIM_CLK_SRCS_PTP	= 3,
  	TIM_CLK_SRSC_INVALID,
  };
  
  enum tim_gpio_edge {
  	TIM_GPIO_NO_EDGE		= 0,
  	TIM_GPIO_LTOH_TRANS		= 1,
  	TIM_GPIO_HTOL_TRANS		= 2,
  	TIM_GPIO_BOTH_TRANS		= 3,
  	TIM_GPIO_INVALID,
  };
  
  enum ptp_op {
  	PTP_OP_ADJFINE = 0, /* adjfine(req.scaled_ppm); */
  	PTP_OP_GET_CLOCK = 1, /* rsp.clk = get_clock() */
  };
  
  struct ptp_req {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io op;
  	int64_t __otx2_io scaled_ppm;
  	uint8_t __otx2_io is_pmu;
  };
  
  struct ptp_rsp {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io clk;
  	uint64_t __otx2_io tsc;
  };
  
  struct get_hw_cap_rsp {
  	struct mbox_msghdr hdr;
  	/* Schq mapping fixed or flexible */
  	uint8_t __otx2_io nix_fixed_txschq_mapping;
  	uint8_t __otx2_io nix_shaping; /* Is shaping and coloring supported */
  };
  
  struct ndc_sync_op {
  	struct mbox_msghdr hdr;
  	uint8_t __otx2_io nix_lf_tx_sync;
  	uint8_t __otx2_io nix_lf_rx_sync;
  	uint8_t __otx2_io npa_lf_sync;
  };
  
  struct tim_lf_alloc_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io ring;
  	uint16_t __otx2_io npa_pf_func;
  	uint16_t __otx2_io sso_pf_func;
  };
  
  struct tim_ring_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io ring;
  };
  
  struct tim_config_req {
  	struct mbox_msghdr hdr;
  	uint16_t __otx2_io ring;
  	uint8_t __otx2_io bigendian;
  	uint8_t __otx2_io clocksource;
  	uint8_t __otx2_io enableperiodic;
  	uint8_t __otx2_io enabledontfreebuffer;
  	uint32_t __otx2_io bucketsize;
  	uint32_t __otx2_io chunksize;
  	uint32_t __otx2_io interval;
  };
  
  struct tim_lf_alloc_rsp {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io tenns_clk;
  };
  
  struct tim_enable_rsp {
  	struct mbox_msghdr hdr;
  	uint64_t __otx2_io timestarted;
  	uint32_t __otx2_io currentbucket;
  };
  
  const char *otx2_mbox_id2name(uint16_t id);
  int otx2_mbox_id2size(uint16_t id);
  void otx2_mbox_reset(struct otx2_mbox *mbox, int devid);
  int otx2_mbox_init(struct otx2_mbox *mbox, uintptr_t hwbase, uintptr_t reg_base,
  		   int direction, int ndevsi, uint64_t intr_offset);
  void otx2_mbox_fini(struct otx2_mbox *mbox);
  void otx2_mbox_msg_send(struct otx2_mbox *mbox, int devid);
  int otx2_mbox_wait_for_rsp(struct otx2_mbox *mbox, int devid);
  int otx2_mbox_wait_for_rsp_tmo(struct otx2_mbox *mbox, int devid, uint32_t tmo);
  int otx2_mbox_get_rsp(struct otx2_mbox *mbox, int devid, void **msg);
  int otx2_mbox_get_rsp_tmo(struct otx2_mbox *mbox, int devid, void **msg,
  			  uint32_t tmo);
  int otx2_mbox_get_availmem(struct otx2_mbox *mbox, int devid);
  struct mbox_msghdr *otx2_mbox_alloc_msg_rsp(struct otx2_mbox *mbox, int devid,
  					    int size, int size_rsp);
  
  static inline struct mbox_msghdr *
  otx2_mbox_alloc_msg(struct otx2_mbox *mbox, int devid, int size)
  {
  	return otx2_mbox_alloc_msg_rsp(mbox, devid, size, 0);
  }
  
  static inline void
  otx2_mbox_req_init(uint16_t mbox_id, void *msghdr)
  {
  	struct mbox_msghdr *hdr = msghdr;
  
  	hdr->sig = OTX2_MBOX_REQ_SIG;
  	hdr->ver = OTX2_MBOX_VERSION;
  	hdr->id = mbox_id;
  	hdr->pcifunc = 0;
  }
  
  static inline void
  otx2_mbox_rsp_init(uint16_t mbox_id, void *msghdr)
  {
  	struct mbox_msghdr *hdr = msghdr;
  
  	hdr->sig = OTX2_MBOX_RSP_SIG;
  	hdr->rc = -ETIMEDOUT;
  	hdr->id = mbox_id;
  }
  
  static inline bool
  otx2_mbox_nonempty(struct otx2_mbox *mbox, int devid)
  {
  	struct otx2_mbox_dev *mdev = &mbox->dev[devid];
  	bool ret;
  
  	rte_spinlock_lock(&mdev->mbox_lock);
  	ret = mdev->num_msgs != 0;
  	rte_spinlock_unlock(&mdev->mbox_lock);
  
  	return ret;
  }
  
  static inline int
  otx2_mbox_process(struct otx2_mbox *mbox)
  {
  	otx2_mbox_msg_send(mbox, 0);
  	return otx2_mbox_get_rsp(mbox, 0, NULL);
  }
  
  static inline int
  otx2_mbox_process_msg(struct otx2_mbox *mbox, void **msg)
  {
  	otx2_mbox_msg_send(mbox, 0);
  	return otx2_mbox_get_rsp(mbox, 0, msg);
  }
  
  static inline int
  otx2_mbox_process_tmo(struct otx2_mbox *mbox, uint32_t tmo)
  {
  	otx2_mbox_msg_send(mbox, 0);
  	return otx2_mbox_get_rsp_tmo(mbox, 0, NULL, tmo);
  }
  
  static inline int
  otx2_mbox_process_msg_tmo(struct otx2_mbox *mbox, void **msg, uint32_t tmo)
  {
  	otx2_mbox_msg_send(mbox, 0);
  	return otx2_mbox_get_rsp_tmo(mbox, 0, msg, tmo);
  }
  
  int otx2_send_ready_msg(struct otx2_mbox *mbox, uint16_t *pf_func /* out */);
  int otx2_reply_invalid_msg(struct otx2_mbox *mbox, int devid, uint16_t pf_func,
  			uint16_t id);
  
  #define M(_name, _id, _fn_name, _req_type, _rsp_type)			\
  static inline struct _req_type						\
  *otx2_mbox_alloc_msg_ ## _fn_name(struct otx2_mbox *mbox)		\
  {									\
  	struct _req_type *req;						\
  									\
  	req = (struct _req_type *)otx2_mbox_alloc_msg_rsp(		\
  		mbox, 0, sizeof(struct _req_type),			\
  		sizeof(struct _rsp_type));				\
  	if (!req)							\
  		return NULL;						\
  									\
  	req->hdr.sig = OTX2_MBOX_REQ_SIG;				\
  	req->hdr.id = _id;						\
  	otx2_mbox_dbg("id=0x%x (%s)",					\
  			req->hdr.id, otx2_mbox_id2name(req->hdr.id));	\
  	return req;							\
  }
  
  MBOX_MESSAGES
  #undef M
  
  /* This is required for copy operations from device memory which do not work on
   * addresses which are unaligned to 16B. This is because of specific
   * optimizations to libc memcpy.
   */
  static inline volatile void *
  otx2_mbox_memcpy(volatile void *d, const volatile void *s, size_t l)
  {
  	const volatile uint8_t *sb;
  	volatile uint8_t *db;
  	size_t i;
  
  	if (!d || !s)
  		return NULL;
  	db = (volatile uint8_t *)d;
  	sb = (const volatile uint8_t *)s;
  	for (i = 0; i < l; i++)
  		db[i] = sb[i];
  	return d;
  }
  
  /* This is required for memory operations from device memory which do not
   * work on addresses which are unaligned to 16B. This is because of specific
   * optimizations to libc memset.
   */
  static inline void
  otx2_mbox_memset(volatile void *d, uint8_t val, size_t l)
  {
  	volatile uint8_t *db;
  	size_t i = 0;
  
  	if (!d || !l)
  		return;
  	db = (volatile uint8_t *)d;
  	for (i = 0; i < l; i++)
  		db[i] = val;
  }
  
  #endif /* __OTX2_MBOX_H__ */
  