144 lines
4.5 KiB
C
144 lines
4.5 KiB
C
/* Broadcom NetXtreme-C/E network driver.
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*
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* Copyright (c) 2022-2023 Broadcom Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation.
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*/
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#ifndef BNXT_MPC_H
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#define BNXT_MPC_H
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#define BNXT_MPC_TCE_TYPE RING_ALLOC_REQ_MPC_CHNLS_TYPE_TCE
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#define BNXT_MPC_RCE_TYPE RING_ALLOC_REQ_MPC_CHNLS_TYPE_RCE
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#define BNXT_MPC_TE_CFA_TYPE RING_ALLOC_REQ_MPC_CHNLS_TYPE_TE_CFA
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#define BNXT_MPC_RE_CFA_TYPE RING_ALLOC_REQ_MPC_CHNLS_TYPE_RE_CFA
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#define BNXT_MPC_TYPE_MAX (BNXT_MPC_RE_CFA_TYPE + 1)
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#define BNXT_MAX_MPC 8
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#define BNXT_MIN_MPC_TCE 1
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#define BNXT_MIN_MPC_RCE 1
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#define BNXT_DFLT_MPC_TCE BNXT_MAX_MPC
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#define BNXT_DFLT_MPC_RCE BNXT_MAX_MPC
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#define BNXT_MIN_MPC_TE_CFA 1
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#define BNXT_MIN_MPC_RE_CFA 1
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#define BNXT_DFLT_MPC_TE_CFA BNXT_MAX_MPC
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#define BNXT_DFLT_MPC_RE_CFA BNXT_MAX_MPC
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/* Defines the number of msgs there are in an MPC msg completion event.
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* Used to pass an opaque value into the MPC msg xmit function. The
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* completion processing uses this value to ring the doorbell correctly to
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* signal "completion event processing complete" to the hardware.
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*/
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#define BNXT_MPC_COMP_MSG_COUNT 1
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#define BNXT_MPC_TMO_MSECS 1000
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struct bnxt_mpc_info {
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u8 mpc_chnls_cap;
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u8 mpc_cp_rings;
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u8 mpc_ring_count[BNXT_MPC_TYPE_MAX];
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u16 mpc_tx_start_idx;
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struct bnxt_tx_ring_info *mpc_rings[BNXT_MPC_TYPE_MAX];
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};
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enum bnxt_mpc_chnl {
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BNXT_MPC_CHNL_TCE = 0,
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BNXT_MPC_CHNL_RCE = 1,
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BNXT_MPC_CHNL_TE_CFA = 2,
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BNXT_MPC_CHNL_RE_CFA = 3,
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BNXT_MPC_CHNL_PRIMATE = 4,
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BNXT_MPC_CHNL_MAX = 5,
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};
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struct bnxt_sw_mpc_tx_bd {
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u8 inline_bds;
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unsigned long handle;
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};
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#define SW_MPC_TXBD_RING_SIZE (sizeof(struct bnxt_sw_mpc_tx_bd) * TX_DESC_CNT)
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struct bnxt_cmpl_entry {
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void *cmpl;
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u32 len;
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};
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struct mpc_cmp {
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__le32 mpc_cmp_client_subtype_type;
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#define MPC_CMP_TYPE (0x3f << 0)
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#define MPC_CMP_TYPE_MID_PATH_SHORT 0x1e
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#define MPC_CMP_TYPE_MID_PATH_LONG 0x1f
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#define MPC_CMP_SUBTYPE 0xf00
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#define MPC_CMP_SUBTYPE_SFT 8
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#define MPC_CMP_SUBTYPE_SOLICITED (0x0 << 8)
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#define MPC_CMP_SUBTYPE_ERR (0x1 << 8)
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#define MPC_CMP_SUBTYPE_RESYNC (0x2 << 8)
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#define MPC_CMP_CLIENT (0xf << 12)
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#define MPC_CMP_CLIENT_SFT 12
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#define MPC_CMP_CLIENT_TCE (0x0 << 12)
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#define MPC_CMP_CLIENT_RCE (0x1 << 12)
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#define MPC_CMP_CLIENT_TE_CFA (0x2 << 12)
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#define MPC_CMP_CLIENT_RE_CFA (0x3 << 12)
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u32 mpc_cmp_opaque;
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__le32 mpc_cmp_v;
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#define MPC_CMP_V (1 << 0)
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__le32 mpc_cmp_filler;
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};
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#define MPC_CMP_CMP_TYPE(mpcmp) \
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(le32_to_cpu((mpcmp)->mpc_cmp_client_subtype_type) & MPC_CMP_TYPE)
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#define MPC_CMP_CLIENT_TYPE(mpcmp) \
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(le32_to_cpu((mpcmp)->mpc_cmp_client_subtype_type) & MPC_CMP_CLIENT)
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#define MPC_CMP_UNSOLICIT_SUBTYPE(mpcmp) \
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((le32_to_cpu((mpcmp)->mpc_cmp_client_subtype_type) & \
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MPC_CMP_SUBTYPE) == MPC_CMP_SUBTYPE_ERR)
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#define MPC_CMP_VALID(bp, mpcmp, raw_cons) \
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(!!((mpcmp)->mpc_cmp_v & cpu_to_le32(MPC_CMP_V)) == \
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!((raw_cons) & (bp)->cp_bit))
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#define BNXT_MPC_CRYPTO_CAP \
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(FUNC_QCAPS_RESP_MPC_CHNLS_CAP_TCE | FUNC_QCAPS_RESP_MPC_CHNLS_CAP_RCE)
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#define BNXT_MPC_CRYPTO_CAPABLE(bp) \
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((bp)->mpc_info ? \
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((bp)->mpc_info->mpc_chnls_cap & BNXT_MPC_CRYPTO_CAP) == \
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BNXT_MPC_CRYPTO_CAP : false)
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#define BNXT_MPC_CFA_CAP \
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(FUNC_QCAPS_RESP_MPC_CHNLS_CAP_TE_CFA | FUNC_QCAPS_RESP_MPC_CHNLS_CAP_RE_CFA)
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#define BNXT_MPC_CFA_CAPABLE(bp) \
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((bp)->mpc_info ? \
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((bp)->mpc_info->mpc_chnls_cap & BNXT_MPC_CFA_CAP) == \
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BNXT_MPC_CFA_CAP : false)
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void bnxt_alloc_mpc_info(struct bnxt *bp, u8 mpc_chnls_cap);
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void bnxt_free_mpc_info(struct bnxt *bp);
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int bnxt_mpc_tx_rings_in_use(struct bnxt *bp);
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int bnxt_mpc_cp_rings_in_use(struct bnxt *bp);
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bool bnxt_napi_has_mpc(struct bnxt *bp, int i);
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void bnxt_set_mpc_cp_ring(struct bnxt *bp, int bnapi_idx,
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struct bnxt_cp_ring_info *cpr);
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void bnxt_trim_mpc_rings(struct bnxt *bp);
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void bnxt_set_dflt_mpc_rings(struct bnxt *bp);
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void bnxt_init_mpc_ring_struct(struct bnxt *bp);
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int bnxt_alloc_mpcs(struct bnxt *bp);
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void bnxt_free_mpcs(struct bnxt *bp);
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int bnxt_alloc_mpc_rings(struct bnxt *bp);
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void bnxt_free_mpc_rings(struct bnxt *bp);
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void bnxt_init_mpc_rings(struct bnxt *bp);
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int bnxt_hwrm_mpc_ring_alloc(struct bnxt *bp);
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void bnxt_hwrm_mpc_ring_free(struct bnxt *bp, bool close_path);
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int bnxt_start_xmit_mpc(struct bnxt *bp, struct bnxt_tx_ring_info *txr,
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void *data, uint len, unsigned long handle);
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int bnxt_mpc_cmp(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, u32 *raw_cons);
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#endif
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