1 /*- 2 * Copyright (c) 2010 Chelsio Communications, Inc. 3 * All rights reserved. 4 * Written by: Navdeep Parhar <np@FreeBSD.org> 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 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * $FreeBSD$ 28 * 29 */ 30 31 #ifndef __T4_OFFLOAD_H__ 32 #define __T4_OFFLOAD_H__ 33 34 #define INIT_ULPTX_WRH(w, wrlen, atomic, tid) do { \ 35 (w)->wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \ 36 (w)->wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \ 37 V_FW_WR_FLOWID(tid)); \ 38 (w)->wr_lo = cpu_to_be64(0); \ 39 } while (0) 40 41 #define INIT_ULPTX_WR(w, wrlen, atomic, tid) \ 42 INIT_ULPTX_WRH(&((w)->wr), wrlen, atomic, tid) 43 44 #define INIT_TP_WR(w, tid) do { \ 45 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \ 46 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \ 47 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \ 48 V_FW_WR_FLOWID(tid)); \ 49 (w)->wr.wr_lo = cpu_to_be64(0); \ 50 } while (0) 51 52 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \ 53 INIT_TP_WR(w, tid); \ 54 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \ 55 } while (0) 56 57 TAILQ_HEAD(stid_head, stid_region); 58 struct listen_ctx; 59 60 struct stid_region { 61 TAILQ_ENTRY(stid_region) link; 62 u_int used; /* # of stids used by this region */ 63 u_int free; /* # of contiguous stids free right after this region */ 64 }; 65 66 /* 67 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. 68 */ 69 #define MAX_ATIDS 8192U 70 71 union aopen_entry { 72 void *data; 73 union aopen_entry *next; 74 }; 75 76 /* 77 * Holds the size, base address, free list start, etc of the TID, server TID, 78 * and active-open TID tables. The tables themselves are allocated dynamically. 79 */ 80 struct tid_info { 81 void **tid_tab; 82 u_int ntids; 83 u_int tids_in_use; 84 85 struct mtx stid_lock __aligned(CACHE_LINE_SIZE); 86 struct listen_ctx **stid_tab; 87 u_int nstids; 88 u_int stid_base; 89 u_int stids_in_use; 90 u_int nstids_free_head; /* # of available stids at the begining */ 91 struct stid_head stids; 92 93 struct mtx atid_lock __aligned(CACHE_LINE_SIZE); 94 union aopen_entry *atid_tab; 95 u_int natids; 96 union aopen_entry *afree; 97 u_int atids_in_use; 98 99 struct mtx ftid_lock __aligned(CACHE_LINE_SIZE); 100 struct filter_entry *ftid_tab; 101 u_int nftids; 102 u_int ftid_base; 103 u_int ftids_in_use; 104 105 struct mtx etid_lock __aligned(CACHE_LINE_SIZE); 106 struct etid_entry *etid_tab; 107 u_int netids; 108 u_int etid_base; 109 }; 110 111 struct t4_range { 112 u_int start; 113 u_int size; 114 }; 115 116 struct t4_virt_res { /* virtualized HW resources */ 117 struct t4_range ddp; 118 struct t4_range iscsi; 119 struct t4_range stag; 120 struct t4_range rq; 121 struct t4_range pbl; 122 struct t4_range qp; 123 struct t4_range cq; 124 struct t4_range ocq; 125 struct t4_range l2t; 126 }; 127 128 #ifdef TCP_OFFLOAD 129 enum { 130 ULD_TOM = 0, 131 ULD_IWARP, 132 ULD_ISCSI, 133 ULD_MAX = ULD_ISCSI 134 }; 135 136 struct adapter; 137 struct port_info; 138 struct uld_info { 139 SLIST_ENTRY(uld_info) link; 140 int refcount; 141 int uld_id; 142 int (*activate)(struct adapter *); 143 int (*deactivate)(struct adapter *); 144 }; 145 146 struct tom_tunables { 147 int sndbuf; 148 int ddp; 149 int indsz; 150 int ddp_thres; 151 int rx_coalesce; 152 int tx_align; 153 }; 154 155 int t4_register_uld(struct uld_info *); 156 int t4_unregister_uld(struct uld_info *); 157 int t4_activate_uld(struct adapter *, int); 158 int t4_deactivate_uld(struct adapter *, int); 159 void t4_iscsi_init(struct ifnet *, unsigned int, const unsigned int *); 160 int uld_active(struct adapter *, int); 161 #endif 162 #endif 163