1 /*
2  * Logging Support for MPT (Message Passing Technology) based controllers
3  *
4  * This code is based on drivers/scsi/mpt2sas/mpt2_debug.c
5  * Copyright (C) 2007-2014  LSI Corporation
6  * Copyright (C) 20013-2014 Avago Technologies
7  *  (mailto: MPT-FusionLinux.pdl@avagotech.com)
8  *
9  * This program is free software; you can redistribute it and/or
10  * modify it under the terms of the GNU General Public License
11  * as published by the Free Software Foundation; either version 2
12  * of the License, or (at your option) any later version.
13  *
14  * This program is distributed in the hope that it will be useful,
15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17  * GNU General Public License for more details.
18  *
19  * NO WARRANTY
20  * THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR
21  * CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT
22  * LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT,
23  * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is
24  * solely responsible for determining the appropriateness of using and
25  * distributing the Program and assumes all risks associated with its
26  * exercise of rights under this Agreement, including but not limited to
27  * the risks and costs of program errors, damage to or loss of data,
28  * programs or equipment, and unavailability or interruption of operations.
29 
30  * DISCLAIMER OF LIABILITY
31  * NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY
32  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
33  * DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND
34  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
35  * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
36  * USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED
37  * HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES
38 
39  * You should have received a copy of the GNU General Public License
40  * along with this program; if not, write to the Free Software
41  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
42  * USA.
43  */
44 
45 #ifndef MPT2SAS_DEBUG_H_INCLUDED
46 #define MPT2SAS_DEBUG_H_INCLUDED
47 
48 #define MPT_DEBUG			0x00000001
49 #define MPT_DEBUG_MSG_FRAME		0x00000002
50 #define MPT_DEBUG_SG			0x00000004
51 #define MPT_DEBUG_EVENTS		0x00000008
52 #define MPT_DEBUG_EVENT_WORK_TASK	0x00000010
53 #define MPT_DEBUG_INIT			0x00000020
54 #define MPT_DEBUG_EXIT			0x00000040
55 #define MPT_DEBUG_FAIL			0x00000080
56 #define MPT_DEBUG_TM			0x00000100
57 #define MPT_DEBUG_REPLY			0x00000200
58 #define MPT_DEBUG_HANDSHAKE		0x00000400
59 #define MPT_DEBUG_CONFIG		0x00000800
60 #define MPT_DEBUG_DL			0x00001000
61 #define MPT_DEBUG_RESET			0x00002000
62 #define MPT_DEBUG_SCSI			0x00004000
63 #define MPT_DEBUG_IOCTL			0x00008000
64 #define MPT_DEBUG_CSMISAS		0x00010000
65 #define MPT_DEBUG_SAS			0x00020000
66 #define MPT_DEBUG_TRANSPORT		0x00040000
67 #define MPT_DEBUG_TASK_SET_FULL		0x00080000
68 
69 #define MPT_DEBUG_TARGET_MODE		0x00100000
70 
71 
72 /*
73  * CONFIG_SCSI_MPT2SAS_LOGGING - enabled in Kconfig
74  */
75 
76 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
77 #define MPT_CHECK_LOGGING(IOC, CMD, BITS)			\
78 {								\
79 	if (IOC->logging_level & BITS)				\
80 		CMD;						\
81 }
82 #else
83 #define MPT_CHECK_LOGGING(IOC, CMD, BITS)
84 #endif /* CONFIG_SCSI_MPT2SAS_LOGGING */
85 
86 
87 /*
88  * debug macros
89  */
90 
91 #define dprintk(IOC, CMD)			\
92 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG)
93 
94 #define dsgprintk(IOC, CMD)			\
95 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SG)
96 
97 #define devtprintk(IOC, CMD)			\
98 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENTS)
99 
100 #define dewtprintk(IOC, CMD)		\
101 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EVENT_WORK_TASK)
102 
103 #define dinitprintk(IOC, CMD)			\
104 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_INIT)
105 
106 #define dexitprintk(IOC, CMD)			\
107 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_EXIT)
108 
109 #define dfailprintk(IOC, CMD)			\
110 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_FAIL)
111 
112 #define dtmprintk(IOC, CMD)			\
113 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TM)
114 
115 #define dreplyprintk(IOC, CMD)			\
116 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_REPLY)
117 
118 #define dhsprintk(IOC, CMD)			\
119 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_HANDSHAKE)
120 
121 #define dcprintk(IOC, CMD)			\
122 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CONFIG)
123 
124 #define ddlprintk(IOC, CMD)			\
125 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_DL)
126 
127 #define drsprintk(IOC, CMD)			\
128 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_RESET)
129 
130 #define dsprintk(IOC, CMD)			\
131 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SCSI)
132 
133 #define dctlprintk(IOC, CMD)			\
134 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_IOCTL)
135 
136 #define dcsmisasprintk(IOC, CMD)		\
137 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_CSMISAS)
138 
139 #define dsasprintk(IOC, CMD)			\
140 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS)
141 
142 #define dsastransport(IOC, CMD)		\
143 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_SAS_WIDE)
144 
145 #define dmfprintk(IOC, CMD)			\
146 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_MSG_FRAME)
147 
148 #define dtsfprintk(IOC, CMD)			\
149 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TASK_SET_FULL)
150 
151 #define dtransportprintk(IOC, CMD)			\
152 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TRANSPORT)
153 
154 #define dTMprintk(IOC, CMD)			\
155 	MPT_CHECK_LOGGING(IOC, CMD, MPT_DEBUG_TARGET_MODE)
156 
157 /* inline functions for dumping debug data*/
158 #ifdef CONFIG_SCSI_MPT2SAS_LOGGING
159 /**
160  * _debug_dump_mf - print message frame contents
161  * @mpi_request: pointer to message frame
162  * @sz: number of dwords
163  */
164 static inline void
_debug_dump_mf(void * mpi_request,int sz)165 _debug_dump_mf(void *mpi_request, int sz)
166 {
167 	int i;
168 	__le32 *mfp = (__le32 *)mpi_request;
169 
170 	printk(KERN_INFO "mf:\n\t");
171 	for (i = 0; i < sz; i++) {
172 		if (i && ((i % 8) == 0))
173 			printk("\n\t");
174 		printk("%08x ", le32_to_cpu(mfp[i]));
175 	}
176 	printk("\n");
177 }
178 #else
179 #define _debug_dump_mf(mpi_request, sz)
180 #endif /* CONFIG_SCSI_MPT2SAS_LOGGING */
181 
182 #endif /* MPT2SAS_DEBUG_H_INCLUDED */
183