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 14b (enough for 16K) but we reserve 70 * the upper 3b for use as a cookie to demux the reply. 71 */ 72 #define MAX_ATIDS 2048U 73 74 union aopen_entry { 75 void *data; 76 union aopen_entry *next; 77 }; 78 79 /* 80 * Holds the size, base address, free list start, etc of the TID, server TID, 81 * and active-open TID tables. The tables themselves are allocated dynamically. 82 */ 83 struct tid_info { 84 void **tid_tab; 85 u_int ntids; 86 u_int tids_in_use; 87 88 struct mtx stid_lock __aligned(CACHE_LINE_SIZE); 89 struct listen_ctx **stid_tab; 90 u_int nstids; 91 u_int stid_base; 92 u_int stids_in_use; 93 u_int nstids_free_head; /* # of available stids at the beginning */ 94 struct stid_head stids; 95 96 struct mtx atid_lock __aligned(CACHE_LINE_SIZE); 97 union aopen_entry *atid_tab; 98 u_int natids; 99 union aopen_entry *afree; 100 u_int atids_in_use; 101 102 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE); 103 struct filter_entry *ftid_tab; 104 u_int nftids; 105 u_int ftid_base; 106 u_int ftids_in_use; 107 108 struct mtx etid_lock __aligned(CACHE_LINE_SIZE); 109 struct etid_entry *etid_tab; 110 u_int netids; 111 u_int etid_base; 112 }; 113 114 struct t4_range { 115 u_int start; 116 u_int size; 117 }; 118 119 struct t4_virt_res { /* virtualized HW resources */ 120 struct t4_range ddp; 121 struct t4_range iscsi; 122 struct t4_range stag; 123 struct t4_range rq; 124 struct t4_range pbl; 125 struct t4_range qp; 126 struct t4_range cq; 127 struct t4_range srq; 128 struct t4_range ocq; 129 struct t4_range l2t; 130 struct t4_range key; 131 }; 132 133 enum { 134 ULD_TOM = 0, 135 ULD_IWARP, 136 ULD_ISCSI, 137 ULD_MAX = ULD_ISCSI 138 }; 139 140 struct adapter; 141 struct port_info; 142 struct uld_info { 143 SLIST_ENTRY(uld_info) link; 144 int refcount; 145 int uld_id; 146 int (*activate)(struct adapter *); 147 int (*deactivate)(struct adapter *); 148 }; 149 150 struct tom_tunables { 151 int cong_algorithm; 152 int sndbuf; 153 int ddp; 154 int rx_coalesce; 155 int tls; 156 int *tls_rx_ports; 157 int num_tls_rx_ports; 158 int tx_align; 159 int tx_zcopy; 160 int cop_managed_offloading; 161 }; 162 /* iWARP driver tunables */ 163 struct iw_tunables { 164 int wc_en; 165 }; 166 #ifdef TCP_OFFLOAD 167 int t4_register_uld(struct uld_info *); 168 int t4_unregister_uld(struct uld_info *); 169 int t4_activate_uld(struct adapter *, int); 170 int t4_deactivate_uld(struct adapter *, int); 171 int uld_active(struct adapter *, int); 172 #endif 173 #endif 174