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118 lines
4.3 KiB
118 lines
4.3 KiB
/* |
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* linux/drivers/scsi/esas2r/esas2r_log.h |
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* For use with ATTO ExpressSAS R6xx SAS/SATA RAID controllers |
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* |
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* Copyright (c) 2001-2013 ATTO Technology, Inc. |
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* (mailto:[email protected]) |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License |
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* as published by the Free Software Foundation; either version 2 |
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* of the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* NO WARRANTY |
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* THE PROGRAM IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OR |
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* CONDITIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT |
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* LIMITATION, ANY WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, |
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* MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Each Recipient is |
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* solely responsible for determining the appropriateness of using and |
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* distributing the Program and assumes all risks associated with its |
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* exercise of rights under this Agreement, including but not limited to |
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* the risks and costs of program errors, damage to or loss of data, |
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* programs or equipment, and unavailability or interruption of operations. |
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* |
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* DISCLAIMER OF LIABILITY |
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* NEITHER RECIPIENT NOR ANY CONTRIBUTORS SHALL HAVE ANY LIABILITY FOR ANY |
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* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
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* DAMAGES (INCLUDING WITHOUT LIMITATION LOST PROFITS), HOWEVER CAUSED AND |
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR |
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* TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE |
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* USE OR DISTRIBUTION OF THE PROGRAM OR THE EXERCISE OF ANY RIGHTS GRANTED |
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* HEREUNDER, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
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* USA. |
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*/ |
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#ifndef __esas2r_log_h__ |
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#define __esas2r_log_h__ |
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struct device; |
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enum { |
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ESAS2R_LOG_NONE = 0, /* no events logged */ |
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ESAS2R_LOG_CRIT = 1, /* critical events */ |
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ESAS2R_LOG_WARN = 2, /* warning events */ |
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ESAS2R_LOG_INFO = 3, /* info events */ |
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ESAS2R_LOG_DEBG = 4, /* debugging events */ |
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ESAS2R_LOG_TRCE = 5, /* tracing events */ |
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#ifdef ESAS2R_TRACE |
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ESAS2R_LOG_DFLT = ESAS2R_LOG_TRCE |
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#else |
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ESAS2R_LOG_DFLT = ESAS2R_LOG_WARN |
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#endif |
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}; |
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__printf(2, 3) int esas2r_log(const long level, const char *format, ...); |
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__printf(3, 4) int esas2r_log_dev(const long level, |
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const struct device *dev, |
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const char *format, |
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...); |
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int esas2r_log_hexdump(const long level, |
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const void *buf, |
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size_t len); |
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/* |
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* the following macros are provided specifically for debugging and tracing |
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* messages. esas2r_debug() is provided for generic non-hardware layer |
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* debugging and tracing events. esas2r_hdebug is provided specifically for |
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* hardware layer debugging and tracing events. |
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*/ |
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#ifdef ESAS2R_DEBUG |
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#define esas2r_debug(f, args ...) esas2r_log(ESAS2R_LOG_DEBG, f, ## args) |
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#define esas2r_hdebug(f, args ...) esas2r_log(ESAS2R_LOG_DEBG, f, ## args) |
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#else |
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#define esas2r_debug(f, args ...) |
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#define esas2r_hdebug(f, args ...) |
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#endif /* ESAS2R_DEBUG */ |
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/* |
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* the following macros are provided in order to trace the driver and catch |
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* some more serious bugs. be warned, enabling these macros may *severely* |
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* impact performance. |
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*/ |
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#ifdef ESAS2R_TRACE |
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#define esas2r_bugon() \ |
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do { \ |
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esas2r_log(ESAS2R_LOG_TRCE, "esas2r_bugon() called in %s:%d" \ |
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" - dumping stack and stopping kernel", __func__, \ |
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__LINE__); \ |
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dump_stack(); \ |
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BUG(); \ |
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} while (0) |
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#define esas2r_trace_enter() esas2r_log(ESAS2R_LOG_TRCE, "entered %s (%s:%d)", \ |
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__func__, __FILE__, __LINE__) |
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#define esas2r_trace_exit() esas2r_log(ESAS2R_LOG_TRCE, "exited %s (%s:%d)", \ |
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__func__, __FILE__, __LINE__) |
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#define esas2r_trace(f, args ...) esas2r_log(ESAS2R_LOG_TRCE, "(%s:%s:%d): " \ |
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f, __func__, __FILE__, __LINE__, \ |
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## args) |
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#else |
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#define esas2r_bugon() |
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#define esas2r_trace_enter() |
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#define esas2r_trace_exit() |
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#define esas2r_trace(f, args ...) |
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#endif /* ESAS2R_TRACE */ |
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#endif /* __esas2r_log_h__ */
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