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 /* 58 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. 59 */ 60 #define MAX_ATIDS 8192U 61 62 union serv_entry { 63 void *data; 64 union serv_entry *next; 65 }; 66 67 union aopen_entry { 68 void *data; 69 union aopen_entry *next; 70 }; 71 72 /* 73 * Holds the size, base address, free list start, etc of the TID, server TID, 74 * and active-open TID tables. The tables themselves are allocated dynamically. 75 */ 76 struct tid_info { 77 void **tid_tab; 78 unsigned int ntids; 79 80 union serv_entry *stid_tab; 81 unsigned int nstids; 82 unsigned int stid_base; 83 84 union aopen_entry *atid_tab; 85 unsigned int natids; 86 87 struct filter_entry *ftid_tab; 88 unsigned int nftids; 89 unsigned int ftid_base; 90 unsigned int ftids_in_use; 91 92 struct mtx atid_lock; 93 union aopen_entry *afree; 94 unsigned int atids_in_use; 95 96 struct mtx stid_lock; 97 union serv_entry *sfree; 98 unsigned int stids_in_use; 99 100 unsigned int tids_in_use; 101 }; 102 103 struct t4_range { 104 unsigned int start; 105 unsigned int size; 106 }; 107 108 struct t4_virt_res { /* virtualized HW resources */ 109 struct t4_range ddp; 110 struct t4_range iscsi; 111 struct t4_range stag; 112 struct t4_range rq; 113 struct t4_range pbl; 114 struct t4_range qp; 115 struct t4_range cq; 116 struct t4_range ocq; 117 }; 118 119 #ifdef TCP_OFFLOAD 120 enum { 121 ULD_TOM = 1, 122 }; 123 124 struct adapter; 125 struct port_info; 126 struct uld_info { 127 SLIST_ENTRY(uld_info) link; 128 int refcount; 129 int uld_id; 130 int (*activate)(struct adapter *); 131 int (*deactivate)(struct adapter *); 132 }; 133 134 struct tom_tunables { 135 int sndbuf; 136 int ddp; 137 int indsz; 138 int ddp_thres; 139 }; 140 141 int t4_register_uld(struct uld_info *); 142 int t4_unregister_uld(struct uld_info *); 143 int t4_activate_uld(struct adapter *, int); 144 int t4_deactivate_uld(struct adapter *, int); 145 #endif 146 147 #endif 148