1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2004-2006 Pawel Jakub Dawidek <pjd@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _G_NOP_H_ 32 #define _G_NOP_H_ 33 34 #define G_NOP_CLASS_NAME "NOP" 35 #define G_NOP_VERSION 4 36 #define G_NOP_SUFFIX ".nop" 37 /* 38 * Special flag to instruct gnop to passthrough the underlying provider's 39 * physical path 40 */ 41 #define G_NOP_PHYSPATH_PASSTHROUGH "\255" 42 43 #ifdef _KERNEL 44 #define G_NOP_DEBUG(lvl, ...) do { \ 45 if (g_nop_debug >= (lvl)) { \ 46 printf("GEOM_NOP"); \ 47 if (g_nop_debug > 0) \ 48 printf("[%u]", lvl); \ 49 printf(": "); \ 50 printf(__VA_ARGS__); \ 51 printf("\n"); \ 52 } \ 53 } while (0) 54 #define G_NOP_LOGREQ(bp, ...) G_NOP_LOGREQLVL(2, bp, __VA_ARGS__) 55 #define G_NOP_LOGREQLVL(lvl, bp, ...) do { \ 56 if (g_nop_debug >= (lvl)) { \ 57 printf("GEOM_NOP[%d]: ", (lvl)); \ 58 printf(__VA_ARGS__); \ 59 printf(" "); \ 60 g_print_bio(bp); \ 61 printf("\n"); \ 62 } \ 63 } while (0) 64 65 struct g_nop_delay; 66 67 TAILQ_HEAD(g_nop_delay_head, g_nop_delay); 68 69 struct g_nop_softc { 70 int sc_error; 71 off_t sc_offset; 72 off_t sc_explicitsize; 73 off_t sc_stripesize; 74 off_t sc_stripeoffset; 75 u_int sc_rfailprob; 76 u_int sc_wfailprob; 77 u_int sc_delaymsec; 78 u_int sc_rdelayprob; 79 u_int sc_wdelayprob; 80 uintmax_t sc_reads; 81 uintmax_t sc_writes; 82 uintmax_t sc_deletes; 83 uintmax_t sc_getattrs; 84 uintmax_t sc_flushes; 85 uintmax_t sc_cmd0s; 86 uintmax_t sc_cmd1s; 87 uintmax_t sc_cmd2s; 88 uintmax_t sc_readbytes; 89 uintmax_t sc_wrotebytes; 90 char *sc_physpath; 91 struct mtx sc_lock; 92 struct g_nop_delay_head sc_head_delay; 93 }; 94 #endif /* _KERNEL */ 95 96 #endif /* _G_NOP_H_ */ 97