fe36702132
lacking a copyright/license statement. All these files were in the Cavium FreeBSD source drop and appear to be written by Cavium (some are nearly verbatim copies of files from the cnusers' 1.9.0 SDK, which also uses this copyright).
205 lines
6.8 KiB
C
205 lines
6.8 KiB
C
/***********************license start***************
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* Copyright (c) 2003-2008 Cavium Networks (support@cavium.com). All rights
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* reserved.
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*
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* * Neither the name of Cavium Networks nor the names of
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* its contributors may be used to endorse or promote products
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* derived from this software without specific prior written
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* permission.
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*
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* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
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* AND WITH ALL FAULTS AND CAVIUM NETWORKS MAKES NO PROMISES, REPRESENTATIONS
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* OR WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH
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* RESPECT TO THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY
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* REPRESENTATION OR DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT
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* DEFECTS, AND CAVIUM SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES
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* OF TITLE, MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR
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* PURPOSE, LACK OF VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET
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* POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE RISK ARISING OUT
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* OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
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*
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*
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* For any questions regarding licensing please contact marketing@caviumnetworks.com
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*
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***********************license end**************************************/
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/* $FreeBSD$ */
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/*------------------------------------------------------------------
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* octeon_ipd.h Input Packet Unit
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*
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*------------------------------------------------------------------
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*/
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#ifndef ___OCTEON_IPD__H___
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#define ___OCTEON_IPD__H___
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typedef enum {
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OCTEON_IPD_OPC_MODE_STT = 0LL, /* All blocks DRAM, not cached in L2 */
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OCTEON_IPD_OPC_MODE_STF = 1LL, /* All blocks into L2 */
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OCTEON_IPD_OPC_MODE_STF1_STT = 2LL, /* 1st block L2, rest DRAM */
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OCTEON_IPD_OPC_MODE_STF2_STT = 3LL /* 1st, 2nd blocks L2, rest DRAM */
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} octeon_ipd_mode_t;
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/*
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* IPD_CTL_STATUS = IPS'd Control Status Register
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* The number of words in a MBUFF used for packet data store.
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 58; /* Reserved */
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uint64_t pkt_lend : 1; /* Pkt Lil-Endian Writes to L2C */
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uint64_t wqe_lend : 1; /* WQE Lik-Endian Writes to L2C */
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uint64_t pbp_en : 1; /* Enable Back-Pressure */
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octeon_ipd_mode_t opc_mode : 2; /* Pkt data in Mem/L2-cache ? */
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uint64_t ipd_en : 1; /* Enable IPD */
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} bits;
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} octeon_ipd_ctl_status_t;
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/*
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* IPD_1ST_NEXT_PTR_BACK = IPD First Next Pointer Back Values
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*
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* Contains the Back Field for use in creating the Next Pointer Header
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* for the First MBUF
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 60; /* Must be zero */
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uint64_t back : 4; /* Used to find head of buffer from the nxt-hdr-ptr. */
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} bits;
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} octeon_ipd_first_next_ptr_back_t;
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/*
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* IPD_INTERRUPT_ENB = IPD Interrupt Enable Register
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*
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* Used to enable the various interrupting conditions of IPD
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 59; /* Must be zero */
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uint64_t bp_sub : 1; /* BP subtract is illegal val */
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uint64_t prc_par3 : 1; /* PBM Bits [127:96] Parity Err */
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uint64_t prc_par2 : 1; /* PBM Bits [ 95:64] Parity Err */
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uint64_t prc_par1 : 1; /* PBM Bits [ 63:32] Parity Err */
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uint64_t prc_par0 : 1; /* PBM Bits [ 31:0 ] Parity Err */
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} bits;
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} octeon_ipd_int_enb_t;
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/*
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* IPD_INTERRUPT_SUM = IPD Interrupt Summary Register
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*
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* Set when an interrupt condition occurs, write '1' to clear.
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 59; /* Must be zero */
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uint64_t bp_sub : 1; /* BP subtract is illegal val */
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uint64_t prc_par3 : 1; /* PBM Bits [127:96] Parity Err */
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uint64_t prc_par2 : 1; /* PBM Bits [ 95:64] Parity Err */
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uint64_t prc_par1 : 1; /* PBM Bits [ 63:32] Parity Err */
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uint64_t prc_par0 : 1; /* PBM Bits [ 31:0 ] Parity Err */
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} bits;
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} octeon_ipd_int_sum_t;
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/**
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* IPD_1ST_MBUFF_SKIP = IPD First MBUFF Word Skip Size
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*
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* The number of words that the IPD will skip when writing the first MBUFF.
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 58; /* Must be zero */
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uint64_t skip_sz : 6; /* 64bit words from the top of */
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/* 1st MBUFF that the IPD will */
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/* store the next-pointer. */
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/* [0..32] && */
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/* (skip_sz + 16) <= IPD_PACKET_MBUFF_SIZE[MB_SIZE]. */
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} bits;
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} octeon_ipd_mbuff_first_skip_t;
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/*
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* IPD_PACKET_MBUFF_SIZE = IPD's PACKET MUBUF Size In Words
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*
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* The number of words in a MBUFF used for packet data store.
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 52; /* Must be zero */
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uint64_t mb_size : 12; /* 64bit words in a MBUF. */
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/* Must be [32..2048] */
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/* Is also the size of the FPA's */
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/* Queue-0 Free-Page */
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} bits;
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} octeon_ipd_mbuff_size_t;
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/*
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* IPD_WQE_FPA_QUEUE = IPD Work-Queue-Entry FPA Page Size
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*
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* Which FPA Queue (0-7) to fetch page-pointers from for WQE's
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*/
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typedef union {
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uint64_t word64;
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struct {
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uint64_t reserved : 61; /* Must be zero */
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uint64_t wqe_pool : 3; /* FPA Pool to fetch WQE Page-ptrs */
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} bits;
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} octeon_ipd_wqe_fpa_pool_t;
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/* End of Control and Status Register (CSR) definitions */
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typedef octeon_ipd_mbuff_first_skip_t octeon_ipd_mbuff_not_first_skip_t;
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typedef octeon_ipd_first_next_ptr_back_t octeon_ipd_second_next_ptr_back_t;
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/*
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* Externs
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*/
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extern void octeon_ipd_enable(void);
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extern void octeon_ipd_disable(void);
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extern void octeon_ipd_config(u_int mbuff_size,
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u_int first_mbuff_skip,
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u_int not_first_mbuff_skip,
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u_int first_back,
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u_int second_back,
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u_int wqe_fpa_pool,
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octeon_ipd_mode_t cache_mode,
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u_int back_pres_enable_flag);
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#endif /* ___OCTEON_IPD__H___ */
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