1 /* 2 * BSD LICENSE 3 * 4 * Copyright (C) Cavium Inc. 2017. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in 14 * the documentation and/or other materials provided with the 15 * distribution. 16 * * Neither the name of Cavium networks nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 #ifndef __OCTEONTX_PKO_H__ 34 #define __OCTEONTX_PKO_H__ 35 36 /* PKO maximum constants */ 37 #define PKO_VF_MAX (32) 38 #define PKO_VF_NUM_DQ (8) 39 #define PKO_MAX_NUM_DQ (8) 40 #define PKO_DQ_DRAIN_TO (1000) 41 42 #define PKO_DQ_FC_SKID (4) 43 #define PKO_DQ_FC_DEPTH_PAGES (2048) 44 #define PKO_DQ_FC_STRIDE_16 (16) 45 #define PKO_DQ_FC_STRIDE_128 (128) 46 #define PKO_DQ_FC_STRIDE PKO_DQ_FC_STRIDE_16 47 48 #define PKO_DQ_KIND_BIT 49 49 #define PKO_DQ_STATUS_BIT 60 50 #define PKO_DQ_OP_BIT 48 51 52 /* PKO VF register offsets from VF_BAR0 */ 53 #define PKO_VF_DQ_SW_XOFF(gdq) (0x000100 | (gdq) << 17) 54 #define PKO_VF_DQ_WM_CTL(gdq) (0x000130 | (gdq) << 17) 55 #define PKO_VF_DQ_WM_CNT(gdq) (0x000150 | (gdq) << 17) 56 #define PKO_VF_DQ_FC_CONFIG (0x000160) 57 #define PKO_VF_DQ_FC_STATUS(gdq) (0x000168 | (gdq) << 17) 58 #define PKO_VF_DQ_OP_SEND(gdq, op) (0x001000 | (gdq) << 17 | (op) << 3) 59 #define PKO_VF_DQ_OP_OPEN(gdq) (0x001100 | (gdq) << 17) 60 #define PKO_VF_DQ_OP_CLOSE(gdq) (0x001200 | (gdq) << 17) 61 #define PKO_VF_DQ_OP_QUERY(gdq) (0x001300 | (gdq) << 17) 62 63 /* pko_send_hdr_s + pko_send_link */ 64 #define PKO_CMD_SZ (2 << 1) 65 #define PKO_SEND_GATHER_SUBDC (0x0ull << 60) 66 #define PKO_SEND_GATHER_LDTYPE(x) ((x) << 58) 67 #define PKO_SEND_GATHER_GAUAR(x) ((x) << 24) 68 69 typedef struct octeontx_dq_s { 70 void *lmtline_va; 71 void *ioreg_va; 72 void *fc_status_va; 73 } octeontx_dq_t; 74 75 /** 76 * Function for extracting information out of a given DQ. 77 * 78 * It is intended to be used in slow path (configuration) in 79 * octeontx_pko_channel_query(). 80 * 81 * @param dq The DQ to extract information from. 82 * @param out Pointer to the user's structure he wants to fill. 83 */ 84 typedef void (*octeontx_pko_dq_getter_t)(octeontx_dq_t *dq, void *out); 85 86 int 87 octeontx_pko_channel_query_dqs(int chanid, void *out, size_t out_elem_size, 88 size_t dq_num, octeontx_pko_dq_getter_t getter); 89 int octeontx_pko_channel_open(int dq_base, int dq_num, int chanid); 90 int octeontx_pko_channel_close(int chanid); 91 int octeontx_pko_channel_start(int chanid); 92 int octeontx_pko_channel_stop(int chanid); 93 int octeontx_pko_vf_count(void); 94 int octeontx_pko_init_fc(const size_t pko_vf_count); 95 void octeontx_pko_fc_free(void); 96 97 #endif /* __OCTEONTX_PKO_H__ */ 98