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_snd_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 struct adapter *adapter; 93 u_int flags; 94 struct mtx lock; 95 int port_id; 96 int etid; 97 struct mbufq pending_tx, pending_fwack; 98 int plen; 99 struct sge_wrq *eo_txq; 100 uint32_t ctrl0; 101 uint16_t iqid; 102 int8_t schedcl; 103 uint64_t max_rate; /* in bytes/s */ 104 uint8_t tx_total; /* total tx WR credits (in 16B units) */ 105 uint8_t tx_credits; /* tx WR credits (in 16B units) available */ 106 uint8_t tx_nocompl; /* tx WR credits since last compl request */ 107 uint8_t ncompl; /* # of completions outstanding. */ 108 }; 109 110 static inline struct cxgbe_snd_tag * 111 mst_to_cst(struct m_snd_tag *t) 112 { 113 114 return (__containerof(t, struct cxgbe_snd_tag, com)); 115 } 116 117 union etid_entry { 118 struct cxgbe_snd_tag *cst; 119 union etid_entry *next; 120 }; 121 122 /* 123 * Holds the size, base address, start, end, etc. of various types of TIDs. The 124 * tables themselves are allocated dynamically. 125 */ 126 struct tid_info { 127 u_int nstids; 128 u_int stid_base; 129 130 u_int natids; 131 132 u_int nftids; 133 u_int ftid_base; 134 u_int ftid_end; 135 136 u_int nhpftids; 137 u_int hpftid_base; 138 u_int hpftid_end; 139 140 u_int ntids; 141 u_int tid_base; 142 143 u_int netids; 144 u_int etid_base; 145 u_int etid_end; 146 147 struct mtx stid_lock __aligned(CACHE_LINE_SIZE); 148 struct listen_ctx **stid_tab; 149 u_int stids_in_use; 150 u_int nstids_free_head; /* # of available stids at the beginning */ 151 struct stid_head stids; 152 153 struct mtx atid_lock __aligned(CACHE_LINE_SIZE); 154 union aopen_entry *atid_tab; 155 union aopen_entry *afree; 156 u_int atids_in_use; 157 158 /* High priority filters and normal filters share the lock and cv. */ 159 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE); 160 struct cv ftid_cv; 161 struct filter_entry *ftid_tab; 162 struct filter_entry *hpftid_tab; 163 u_int ftids_in_use; 164 u_int hpftids_in_use; 165 166 /* 167 * hashfilter and TOE are mutually exclusive and both use ntids and 168 * tids_in_use. The lock and cv are used only by hashfilter. 169 */ 170 struct mtx hftid_lock __aligned(CACHE_LINE_SIZE); 171 struct cv hftid_cv; 172 void **tid_tab; 173 u_int tids_in_use; 174 175 void *hftid_hash_4t; /* LIST_HEAD(, filter_entry) *hftid_hash_4t; */ 176 u_long hftid_4t_mask; 177 void *hftid_hash_tid; /* LIST_HEAD(, filter_entry) *hftid_hash_tid; */ 178 u_long hftid_tid_mask; 179 180 struct mtx etid_lock __aligned(CACHE_LINE_SIZE); 181 union etid_entry *etid_tab; 182 union etid_entry *efree; 183 u_int etids_in_use; 184 }; 185 186 struct t4_range { 187 u_int start; 188 u_int size; 189 }; 190 191 struct t4_virt_res { /* virtualized HW resources */ 192 struct t4_range ddp; 193 struct t4_range iscsi; 194 struct t4_range stag; 195 struct t4_range rq; 196 struct t4_range pbl; 197 struct t4_range qp; 198 struct t4_range cq; 199 struct t4_range srq; 200 struct t4_range ocq; 201 struct t4_range l2t; 202 struct t4_range key; 203 }; 204 205 enum { 206 ULD_TOM = 0, 207 ULD_IWARP, 208 ULD_ISCSI, 209 ULD_MAX = ULD_ISCSI 210 }; 211 212 struct adapter; 213 struct port_info; 214 struct uld_info { 215 SLIST_ENTRY(uld_info) link; 216 int refcount; 217 int uld_id; 218 int (*activate)(struct adapter *); 219 int (*deactivate)(struct adapter *); 220 }; 221 222 struct tom_tunables { 223 int cong_algorithm; 224 int sndbuf; 225 int ddp; 226 int rx_coalesce; 227 int tls; 228 int *tls_rx_ports; 229 int num_tls_rx_ports; 230 int tx_align; 231 int tx_zcopy; 232 int cop_managed_offloading; 233 int autorcvbuf_inc; 234 }; 235 /* iWARP driver tunables */ 236 struct iw_tunables { 237 int wc_en; 238 }; 239 #ifdef TCP_OFFLOAD 240 int t4_register_uld(struct uld_info *); 241 int t4_unregister_uld(struct uld_info *); 242 int t4_activate_uld(struct adapter *, int); 243 int t4_deactivate_uld(struct adapter *, int); 244 int uld_active(struct adapter *, int); 245 #endif 246 #endif 247