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 /* CPL message priority levels */ 35 enum { 36 CPL_PRIORITY_DATA = 0, /* data messages */ 37 CPL_PRIORITY_SETUP = 1, /* connection setup messages */ 38 CPL_PRIORITY_TEARDOWN = 0, /* connection teardown messages */ 39 CPL_PRIORITY_LISTEN = 1, /* listen start/stop messages */ 40 CPL_PRIORITY_ACK = 1, /* RX ACK messages */ 41 CPL_PRIORITY_CONTROL = 1 /* control messages */ 42 }; 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 /* 53 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. 54 */ 55 #define MAX_ATIDS 8192U 56 57 struct serv_entry { 58 void *data; 59 }; 60 61 union aopen_entry { 62 void *data; 63 union aopen_entry *next; 64 }; 65 66 /* 67 * Holds the size, base address, free list start, etc of the TID, server TID, 68 * and active-open TID tables. The tables themselves are allocated dynamically. 69 */ 70 struct tid_info { 71 void **tid_tab; 72 unsigned int ntids; 73 74 struct serv_entry *stid_tab; 75 unsigned long *stid_bmap; 76 unsigned int nstids; 77 unsigned int stid_base; 78 79 union aopen_entry *atid_tab; 80 unsigned int natids; 81 82 struct filter_entry *ftid_tab; 83 unsigned int nftids; 84 unsigned int ftid_base; 85 unsigned int ftids_in_use; 86 87 union aopen_entry *afree; 88 unsigned int atids_in_use; 89 90 unsigned int stids_in_use; 91 }; 92 93 struct t4_range { 94 unsigned int start; 95 unsigned int size; 96 }; 97 98 struct t4_virt_res { /* virtualized HW resources */ 99 struct t4_range ddp; 100 struct t4_range iscsi; 101 struct t4_range stag; 102 struct t4_range rq; 103 struct t4_range pbl; 104 }; 105 106 #endif 107