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 /* 35 * Max # of ATIDs. The absolute HW max is 16K but we keep it lower. 36 */ 37 #define MAX_ATIDS 8192U 38 39 struct serv_entry { 40 void *data; 41 }; 42 43 union aopen_entry { 44 void *data; 45 union aopen_entry *next; 46 }; 47 48 /* 49 * Holds the size, base address, free list start, etc of the TID, server TID, 50 * and active-open TID tables. The tables themselves are allocated dynamically. 51 */ 52 struct tid_info { 53 void **tid_tab; 54 unsigned int ntids; 55 56 struct serv_entry *stid_tab; 57 unsigned long *stid_bmap; 58 unsigned int nstids; 59 unsigned int stid_base; 60 61 union aopen_entry *atid_tab; 62 unsigned int natids; 63 64 unsigned int nftids; 65 unsigned int ftid_base; 66 67 union aopen_entry *afree; 68 unsigned int atids_in_use; 69 70 unsigned int stids_in_use; 71 }; 72 73 struct t4_range { 74 unsigned int start; 75 unsigned int size; 76 }; 77 78 struct t4_virt_res { /* virtualized HW resources */ 79 struct t4_range ddp; 80 struct t4_range iscsi; 81 struct t4_range stag; 82 struct t4_range rq; 83 struct t4_range pbl; 84 }; 85 86 #endif 87