1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21/*
22 * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23 * Use is subject to license terms.
24 */
25
26#pragma ident	"%Z%%M%	%I%	%E% SMI"
27
28#include <npi.h>
29#include <sys/nxge/nxge_impl.h>
30
31nxge_os_mutex_t npidebuglock;
32int npi_debug_init = 0;
33uint64_t npi_debug_level = 0;
34
35extern void npi_trace_dump(rtrace_t *, int);
36
37void
38npi_debug_msg(npi_handle_function_t function, uint64_t level, char *fmt, ...)
39{
40	char msg_buffer[1024];
41	char prefix_buffer[32];
42	int cmn_level = CE_CONT;
43	va_list ap;
44
45	if ((level & npi_debug_level) ||
46	    (level & NPI_REG_CTL) ||
47	    (level & NPI_ERR_CTL)) {
48
49		if (npi_debug_init == 0) {
50			MUTEX_INIT(&npidebuglock, NULL, MUTEX_DRIVER, NULL);
51			npi_debug_init = 1;
52		}
53
54		MUTEX_ENTER(&npidebuglock);
55
56		if (level & NPI_ERR_CTL) {
57			cmn_level = CE_WARN;
58		}
59
60		va_start(ap, fmt);
61		(void) vsprintf(msg_buffer, fmt, ap);
62		va_end(ap);
63
64		(void) sprintf(prefix_buffer, "%s%d(%d):", "npi",
65		    function.instance, function.function);
66
67		MUTEX_EXIT(&npidebuglock);
68		cmn_err(cmn_level, "!%s %s\n", prefix_buffer, msg_buffer);
69	}
70}
71
72void
73npi_rtrace_buf_init(rtrace_t *rt)
74{
75	int i;
76
77	rt->next_idx = 0;
78	rt->last_idx = MAX_RTRACE_ENTRIES - 1;
79	rt->wrapped = B_FALSE;
80	for (i = 0; i < MAX_RTRACE_ENTRIES; i++) {
81		rt->buf[i].ctl_addr = TRACE_CTL_INVALID;
82		rt->buf[i].val_l32 = 0;
83		rt->buf[i].val_h32 = 0;
84	}
85}
86
87void
88npi_rtrace_update(npi_handle_t handle, boolean_t wr, rtrace_t *rt,
89    uint32_t addr, uint64_t val)
90{
91	int idx;
92	idx = rt->next_idx;
93	if (wr == B_TRUE)
94		rt->buf[idx].ctl_addr = (addr & TRACE_ADDR_MASK)
95		    | TRACE_CTL_WR;
96	else
97		rt->buf[idx].ctl_addr = (addr & TRACE_ADDR_MASK);
98	rt->buf[idx].ctl_addr |= (((handle.function.function
99	    << TRACE_FUNC_SHIFT) & TRACE_FUNC_MASK) |
100	    ((handle.function.instance
101	    << TRACE_INST_SHIFT) & TRACE_INST_MASK));
102	rt->buf[idx].val_l32 = val & 0xFFFFFFFF;
103	rt->buf[idx].val_h32 = (val >> 32) & 0xFFFFFFFF;
104	rt->next_idx++;
105	if (rt->next_idx > rt->last_idx) {
106		rt->next_idx = 0;
107		rt->wrapped = B_TRUE;
108	}
109}
110
111void
112npi_trace_update(npi_handle_t handle, boolean_t wr, rtrace_t *rt,
113    const char *name, uint32_t addr, uint64_t val)
114{
115	int idx;
116	idx = rt->next_idx;
117	if (wr == B_TRUE)
118		rt->buf[idx].ctl_addr = (addr & TRACE_ADDR_MASK)
119		    | TRACE_CTL_WR;
120	else
121		rt->buf[idx].ctl_addr = (addr & TRACE_ADDR_MASK);
122	/*
123	 * Control Address field format
124	 *
125	 * Bit  0 - 23: Address
126	 * Bit 24 - 25: Function Number
127	 * Bit 26 - 29: Instance Number
128	 * Bit 30: Read/Write Direction bit
129	 * Bit 31: Invalid bit
130	 */
131	rt->buf[idx].ctl_addr |= (((handle.function.function
132	    << TRACE_FUNC_SHIFT) & TRACE_FUNC_MASK) |
133	    ((handle.function.instance
134	    << TRACE_INST_SHIFT) & TRACE_INST_MASK));
135	rt->buf[idx].val_l32 = val & 0xFFFFFFFF;
136	rt->buf[idx].val_h32 = (val >> 32) & 0xFFFFFFFF;
137	(void) strncpy(rt->buf[idx].name, name, 15);
138	rt->next_idx++;
139	if (rt->next_idx > rt->last_idx) {
140		rt->next_idx = 0;
141		rt->wrapped = B_TRUE;
142	}
143}
144
145#if defined(NPI_DEBUG)
146void
147npi_trace_dump(
148	rtrace_t *rt,
149	int count)
150{
151	rt_buf_t *trace;
152	int cursor, i;
153
154	if (count == 0 || count > MAX_RTRACE_ENTRIES)
155		count = 32;
156
157	/*
158	 * Starting with the last recorded entry,
159	 * dump the <count> most recent records.
160	 */
161	cursor = rt->next_idx;
162	cursor = (cursor == 0) ? rt->last_idx : cursor - 1;
163
164	for (i = 0; i < count; i++) {
165		trace = &rt->buf[cursor];
166		if (trace->ctl_addr == 0)
167			break;
168		cmn_err(CE_NOTE, "%16s @ 0x%08x: 0x%08x.%08x: %c",
169		    trace->name, trace->ctl_addr,
170		    trace->val_h32, trace->val_l32,
171		    trace->ctl_addr & TRACE_CTL_WR ? 'W' : 'R');
172		cursor = (cursor == 0) ? rt->last_idx : cursor - 1;
173	}
174}
175#endif
176