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_WR(w, wrlen, atomic, tid) do { \ 35 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_ULPTX_WR) | V_FW_WR_ATOMIC(atomic)); \ 36 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(wrlen, 16)) | \ 37 V_FW_WR_FLOWID(tid)); \ 38 (w)->wr.wr_lo = cpu_to_be64(0); \ 39 } while (0) 40 41 #define INIT_TP_WR(w, tid) do { \ 42 (w)->wr.wr_hi = htonl(V_FW_WR_OP(FW_TP_WR) | \ 43 V_FW_WR_IMMDLEN(sizeof(*w) - sizeof(w->wr))); \ 44 (w)->wr.wr_mid = htonl(V_FW_WR_LEN16(DIV_ROUND_UP(sizeof(*w), 16)) | \ 45 V_FW_WR_FLOWID(tid)); \ 46 (w)->wr.wr_lo = cpu_to_be64(0); \ 47 } while (0) 48 49 #define INIT_TP_WR_MIT_CPL(w, cpl, tid) do { \ 50 INIT_TP_WR(w, tid); \ 51 OPCODE_TID(w) = htonl(MK_OPCODE_TID(cpl, tid)); \ 52 } while (0) 53 54 /* 55 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. 56 */ 57 #define MAX_ATIDS 8192U 58 59 union serv_entry { 60 void *data; 61 union serv_entry *next; 62 }; 63 64 union aopen_entry { 65 void *data; 66 union aopen_entry *next; 67 }; 68 69 /* 70 * Holds the size, base address, free list start, etc of the TID, server TID, 71 * and active-open TID tables. The tables themselves are allocated dynamically. 72 */ 73 struct tid_info { 74 void **tid_tab; 75 unsigned int ntids; 76 77 union serv_entry *stid_tab; 78 unsigned int nstids; 79 unsigned int stid_base; 80 81 union aopen_entry *atid_tab; 82 unsigned int natids; 83 84 struct filter_entry *ftid_tab; 85 unsigned int nftids; 86 unsigned int ftid_base; 87 unsigned int ftids_in_use; 88 89 struct mtx atid_lock; 90 union aopen_entry *afree; 91 unsigned int atids_in_use; 92 93 struct mtx stid_lock; 94 union serv_entry *sfree; 95 unsigned int stids_in_use; 96 97 unsigned int tids_in_use; 98 }; 99 100 struct t4_range { 101 unsigned int start; 102 unsigned int size; 103 }; 104 105 struct t4_virt_res { /* virtualized HW resources */ 106 struct t4_range ddp; 107 struct t4_range iscsi; 108 struct t4_range stag; 109 struct t4_range rq; 110 struct t4_range pbl; 111 struct t4_range qp; 112 struct t4_range cq; 113 struct t4_range ocq; 114 }; 115 116 #ifdef TCP_OFFLOAD 117 enum { 118 ULD_TOM = 1, 119 }; 120 121 struct adapter; 122 struct port_info; 123 struct uld_info { 124 SLIST_ENTRY(uld_info) link; 125 int refcount; 126 int uld_id; 127 int (*activate)(struct adapter *); 128 int (*deactivate)(struct adapter *); 129 }; 130 131 struct tom_tunables { 132 int sndbuf; 133 int ddp; 134 int indsz; 135 int ddp_thres; 136 }; 137 138 int t4_register_uld(struct uld_info *); 139 int t4_unregister_uld(struct uld_info *); 140 int t4_activate_uld(struct adapter *, int); 141 int t4_deactivate_uld(struct adapter *, int); 142 #endif 143 144 #endif 145