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 #include <sys/param.h> 36 #include <sys/proc.h> 37 #include <sys/condvar.h> 38 39 #define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \ 40 (w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \ 41 (w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \ 42 V_FW_WR_FLOWID(tid)); \ 43 (w)->wr_lo = cpu_to_be64(0); \ 44 } while (0) 45 46 #define INIT_ULPTX_WR(w, wrlen, atomic, tid) \ 47 INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid) 48 49 #define INIT_TP_WR(w, tid) do { \ 50 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \ 51 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \ 52 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \ 53 V_FW_WR_FLOWID(tid)); \ 54 (w)->wr.wr_lo = cpu_to_be64(0); \ 55 } while (0) 56 57 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \ 58 INIT_TP_WR(w, tid); \ 59 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \ 60 } while (0) 61 62 TAILQ_HEAD(stid_head, stid_region); 63 struct listen_ctx; 64 65 struct stid_region { 66 TAILQ_ENTRY(stid_region) link; 67 u_int used; /* # of stids used by this region */ 68 u_int free; /* # of contiguous stids free right after this region */ 69 }; 70 71 /* 72 * Max # of ATIDs. The absolute HW max is 14b (enough for 16K) but we reserve 73 * the upper 3b for use as a cookie to demux the reply. 74 */ 75 #define MAX_ATIDS 2048U 76 77 union aopen_entry { 78 void *data; 79 union aopen_entry *next; 80 }; 81 82 /* cxgbe_rate_tag flags */ 83 enum { 84 EO_FLOWC_PENDING = (1 << 0), /* flowc needs to be sent */ 85 EO_FLOWC_RPL_PENDING = (1 << 1), /* flowc credits due back */ 86 EO_SND_TAG_REF = (1 << 2), /* kernel has a ref on us */ 87 EO_FLUSH_RPL_PENDING = (1 << 3), /* credit flush rpl due back */ 88 }; 89 90 struct cxgbe_snd_tag { 91 struct m_snd_tag com; 92 int type; 93 }; 94 95 struct cxgbe_rate_tag { 96 struct cxgbe_snd_tag com; 97 struct adapter *adapter; 98 u_int flags; 99 struct mtx lock; 100 int port_id; 101 int etid; 102 struct mbufq pending_tx, pending_fwack; 103 int plen; 104 struct sge_wrq *eo_txq; 105 uint32_t ctrl0; 106 uint16_t iqid; 107 int8_t schedcl; 108 uint64_t max_rate; /* in bytes/s */ 109 uint8_t tx_total; /* total tx WR credits (in 16B units) */ 110 uint8_t tx_credits; /* tx WR credits (in 16B units) available */ 111 uint8_t tx_nocompl; /* tx WR credits since last compl request */ 112 uint8_t ncompl; /* # of completions outstanding. */ 113 }; 114 115 static inline struct cxgbe_snd_tag * 116 mst_to_cst(struct m_snd_tag *t) 117 { 118 119 return (__containerof(t, struct cxgbe_snd_tag, com)); 120 } 121 122 static inline struct cxgbe_rate_tag * 123 mst_to_crt(struct m_snd_tag *t) 124 { 125 return ((struct cxgbe_rate_tag *)mst_to_cst(t)); 126 } 127 128 union etid_entry { 129 struct cxgbe_rate_tag *cst; 130 union etid_entry *next; 131 }; 132 133 /* 134 * Holds the size, base address, start, end, etc. of various types of TIDs. The 135 * tables themselves are allocated dynamically. 136 */ 137 struct tid_info { 138 u_int nstids; 139 u_int stid_base; 140 141 u_int natids; 142 143 u_int nftids; 144 u_int ftid_base; 145 u_int ftid_end; 146 147 u_int nhpftids; 148 u_int hpftid_base; 149 u_int hpftid_end; 150 151 u_int ntids; 152 u_int tid_base; 153 154 u_int netids; 155 u_int etid_base; 156 u_int etid_end; 157 158 struct mtx stid_lock __aligned(CACHE_LINE_SIZE); 159 struct listen_ctx **stid_tab; 160 u_int stids_in_use; 161 u_int nstids_free_head; /* # of available stids at the beginning */ 162 struct stid_head stids; 163 164 struct mtx atid_lock __aligned(CACHE_LINE_SIZE); 165 union aopen_entry *atid_tab; 166 union aopen_entry *afree; 167 u_int atids_in_use; 168 169 /* High priority filters and normal filters share the lock and cv. */ 170 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE); 171 struct cv ftid_cv; 172 struct filter_entry *ftid_tab; 173 struct filter_entry *hpftid_tab; 174 u_int ftids_in_use; 175 u_int hpftids_in_use; 176 177 /* 178 * hashfilter and TOE are mutually exclusive and both use ntids and 179 * tids_in_use. The lock and cv are used only by hashfilter. 180 */ 181 struct mtx hftid_lock __aligned(CACHE_LINE_SIZE); 182 struct cv hftid_cv; 183 void **tid_tab; 184 u_int tids_in_use; 185 186 void *hftid_hash_4t; /* LIST_HEAD(, filter_entry) *hftid_hash_4t; */ 187 u_long hftid_4t_mask; 188 void *hftid_hash_tid; /* LIST_HEAD(, filter_entry) *hftid_hash_tid; */ 189 u_long hftid_tid_mask; 190 191 struct mtx etid_lock __aligned(CACHE_LINE_SIZE); 192 union etid_entry *etid_tab; 193 union etid_entry *efree; 194 u_int etids_in_use; 195 }; 196 197 struct t4_range { 198 u_int start; 199 u_int size; 200 }; 201 202 struct t4_virt_res { /* virtualized HW resources */ 203 struct t4_range ddp; 204 struct t4_range iscsi; 205 struct t4_range stag; 206 struct t4_range rq; 207 struct t4_range pbl; 208 struct t4_range qp; 209 struct t4_range cq; 210 struct t4_range srq; 211 struct t4_range ocq; 212 struct t4_range l2t; 213 struct t4_range key; 214 }; 215 216 enum { 217 ULD_TOM = 0, 218 ULD_IWARP, 219 ULD_ISCSI, 220 ULD_MAX = ULD_ISCSI 221 }; 222 223 struct adapter; 224 struct port_info; 225 struct uld_info { 226 SLIST_ENTRY(uld_info) link; 227 int refcount; 228 int uld_id; 229 int (*activate)(struct adapter *); 230 int (*deactivate)(struct adapter *); 231 }; 232 233 struct tom_tunables { 234 int cong_algorithm; 235 int sndbuf; 236 int ddp; 237 int rx_coalesce; 238 int tls; 239 int *tls_rx_ports; 240 int num_tls_rx_ports; 241 int tx_align; 242 int tx_zcopy; 243 int cop_managed_offloading; 244 int autorcvbuf_inc; 245 }; 246 247 /* iWARP driver tunables */ 248 struct iw_tunables { 249 int wc_en; 250 }; 251 252 struct tls_tunables { 253 int inline_keys; 254 int combo_wrs; 255 }; 256 257 #ifdef TCP_OFFLOAD 258 int t4_register_uld(struct uld_info *); 259 int t4_unregister_uld(struct uld_info *); 260 int t4_activate_uld(struct adapter *, int); 261 int t4_deactivate_uld(struct adapter *, int); 262 int uld_active(struct adapter *, int); 263 #endif 264 #endif 265