1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2010 Chelsio Communications, Inc. 5 * All rights reserved. 6 * Written by: Navdeep Parhar <np@FreeBSD.org> 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 * 31 */ 32 33 #ifndef __T4_OFFLOAD_H__ 34 #define __T4_OFFLOAD_H__ 35 36 #define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \ 37 (w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \ 38 (w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \ 39 V_FW_WR_FLOWID(tid)); \ 40 (w)->wr_lo = cpu_to_be64(0); \ 41 } while (0) 42 43 #define INIT_ULPTX_WR(w, wrlen, atomic, tid) \ 44 INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid) 45 46 #define INIT_TP_WR(w, tid) do { \ 47 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \ 48 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \ 49 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \ 50 V_FW_WR_FLOWID(tid)); \ 51 (w)->wr.wr_lo = cpu_to_be64(0); \ 52 } while (0) 53 54 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \ 55 INIT_TP_WR(w, tid); \ 56 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \ 57 } while (0) 58 59 TAILQ_HEAD(stid_head, stid_region); 60 struct listen_ctx; 61 62 struct stid_region { 63 TAILQ_ENTRY(stid_region) link; 64 u_int used; /* # of stids used by this region */ 65 u_int free; /* # of contiguous stids free right after this region */ 66 }; 67 68 /* 69 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. 70 */ 71 #define MAX_ATIDS 8192U 72 73 union aopen_entry { 74 void *data; 75 union aopen_entry *next; 76 }; 77 78 /* 79 * Holds the size, base address, free list start, etc of the TID, server TID, 80 * and active-open TID tables. The tables themselves are allocated dynamically. 81 */ 82 struct tid_info { 83 void **tid_tab; 84 u_int ntids; 85 u_int tids_in_use; 86 87 struct mtx stid_lock __aligned(CACHE_LINE_SIZE); 88 struct listen_ctx **stid_tab; 89 u_int nstids; 90 u_int stid_base; 91 u_int stids_in_use; 92 u_int nstids_free_head; /* # of available stids at the beginning */ 93 struct stid_head stids; 94 95 struct mtx atid_lock __aligned(CACHE_LINE_SIZE); 96 union aopen_entry *atid_tab; 97 u_int natids; 98 union aopen_entry *afree; 99 u_int atids_in_use; 100 101 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE); 102 struct filter_entry *ftid_tab; 103 u_int nftids; 104 u_int ftid_base; 105 u_int ftids_in_use; 106 107 struct mtx etid_lock __aligned(CACHE_LINE_SIZE); 108 struct etid_entry *etid_tab; 109 u_int netids; 110 u_int etid_base; 111 }; 112 113 struct t4_range { 114 u_int start; 115 u_int size; 116 }; 117 118 struct t4_virt_res { /* virtualized HW resources */ 119 struct t4_range ddp; 120 struct t4_range iscsi; 121 struct t4_range stag; 122 struct t4_range rq; 123 struct t4_range pbl; 124 struct t4_range qp; 125 struct t4_range cq; 126 struct t4_range srq; 127 struct t4_range ocq; 128 struct t4_range l2t; 129 struct t4_range key; 130 }; 131 132 enum { 133 ULD_TOM = 0, 134 ULD_IWARP, 135 ULD_ISCSI, 136 ULD_MAX = ULD_ISCSI 137 }; 138 139 struct adapter; 140 struct port_info; 141 struct uld_info { 142 SLIST_ENTRY(uld_info) link; 143 int refcount; 144 int uld_id; 145 int (*activate)(struct adapter *); 146 int (*deactivate)(struct adapter *); 147 }; 148 149 struct tom_tunables { 150 int cong_algorithm; 151 int sndbuf; 152 int ddp; 153 int rx_coalesce; 154 int tls; 155 int *tls_rx_ports; 156 int num_tls_rx_ports; 157 int tx_align; 158 int tx_zcopy; 159 }; 160 /* iWARP driver tunables */ 161 struct iw_tunables { 162 int wc_en; 163 }; 164 #ifdef TCP_OFFLOAD 165 int t4_register_uld(struct uld_info *); 166 int t4_unregister_uld(struct uld_info *); 167 int t4_activate_uld(struct adapter *, int); 168 int t4_deactivate_uld(struct adapter *, int); 169 int uld_active(struct adapter *, int); 170 #endif 171 #endif 172