bxe_debug.c revision 330897 
1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2007-2014 QLogic Corporation. All rights reserved.
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 *
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 COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS'
17 * AND 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 COPYRIGHT OWNER OR CONTRIBUTORS
20 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
26 * THE POSSIBILITY OF SUCH DAMAGE.
27 */
28
29#include <sys/cdefs.h>
30__FBSDID("$FreeBSD: stable/11/sys/dev/bxe/bxe_debug.c 330897 2018-03-14 03:19:51Z eadler $");
31
32#include "bxe.h"
33
34#include "ddb/ddb.h"
35#include "ddb/db_sym.h"
36#include "ddb/db_lex.h"
37
38#ifdef BXE_REG_NO_INLINE
39
40/*
41 * Debug versions of the 8/16/32 bit OS register read/write functions to
42 * capture/display values read/written from/to the controller.
43 */
44
45void
46bxe_reg_write8(struct bxe_softc *sc, bus_size_t offset, uint8_t val)
47{
48    BLOGD(sc, DBG_REGS, "offset=0x%08lx val=0x%02x\n", offset, val);
49    bus_space_write_1(sc->bar[BAR0].tag,
50                      sc->bar[BAR0].handle,
51                      offset,
52                      val);
53}
54
55void
56bxe_reg_write16(struct bxe_softc *sc, bus_size_t offset, uint16_t val)
57{
58    if ((offset % 2) != 0) {
59        BLOGD(sc, DBG_REGS, "Unaligned 16-bit write to 0x%08lx\n", offset);
60    }
61
62    BLOGD(sc, DBG_REGS, "offset=0x%08lx val=0x%04x\n", offset, val);
63    bus_space_write_2(sc->bar[BAR0].tag,
64                      sc->bar[BAR0].handle,
65                      offset,
66                      val);
67}
68
69void
70bxe_reg_write32(struct bxe_softc *sc, bus_size_t offset, uint32_t val)
71{
72    if ((offset % 4) != 0) {
73        BLOGD(sc, DBG_REGS, "Unaligned 32-bit write to 0x%08lx\n", offset);
74    }
75
76    BLOGD(sc, DBG_REGS, "offset=0x%08lx val=0x%08x\n", offset, val);
77    bus_space_write_4(sc->bar[BAR0].tag,
78                      sc->bar[BAR0].handle,
79                      offset,
80                      val);
81}
82
83uint8_t
84bxe_reg_read8(struct bxe_softc *sc, bus_size_t offset)
85{
86    uint8_t val;
87
88    val = bus_space_read_1(sc->bar[BAR0].tag,
89                           sc->bar[BAR0].handle,
90                           offset);
91    BLOGD(sc, DBG_REGS, "offset=0x%08lx val=0x%02x\n", offset, val);
92
93    return (val);
94}
95
96uint16_t
97bxe_reg_read16(struct bxe_softc *sc, bus_size_t offset)
98{
99    uint16_t val;
100
101    if ((offset % 2) != 0) {
102        BLOGD(sc, DBG_REGS, "Unaligned 16-bit read from 0x%08lx\n", offset);
103    }
104
105    val = bus_space_read_2(sc->bar[BAR0].tag,
106                           sc->bar[BAR0].handle,
107                           offset);
108    BLOGD(sc, DBG_REGS, "offset=0x%08lx val=0x%08x\n", offset, val);
109
110    return (val);
111}
112
113uint32_t
114bxe_reg_read32(struct bxe_softc *sc, bus_size_t offset)
115{
116    uint32_t val;
117
118    if ((offset % 4) != 0) {
119        BLOGD(sc, DBG_REGS, "Unaligned 32-bit read from 0x%08lx\n", offset);
120    }
121
122    val = bus_space_read_4(sc->bar[BAR0].tag,
123                           sc->bar[BAR0].handle,
124                           offset);
125    BLOGD(sc, DBG_REGS, "offset=0x%08lx val=0x%08x\n", offset, val);
126
127    return (val);
128}
129
130#endif /* BXE_REG_NO_INLINE */
131
132#ifdef ELINK_DEBUG
133
134void
135elink_cb_dbg(struct bxe_softc *sc,
136             char             *fmt)
137{
138    char buf[128];
139    if (__predict_false(sc->debug & DBG_PHY)) {
140        snprintf(buf, sizeof(buf), "ELINK: %s", fmt);
141        device_printf(sc->dev, "%s", buf);
142    }
143}
144
145void
146elink_cb_dbg1(struct bxe_softc *sc,
147              char             *fmt,
148              uint32_t         arg1)
149{
150    char tmp[128], buf[128];
151    if (__predict_false(sc->debug & DBG_PHY)) {
152        snprintf(tmp, sizeof(tmp), "ELINK: %s", fmt);
153        snprintf(buf, sizeof(buf), tmp, arg1);
154        device_printf(sc->dev, "%s", buf);
155    }
156}
157
158void
159elink_cb_dbg2(struct bxe_softc *sc,
160              char             *fmt,
161              uint32_t         arg1,
162              uint32_t         arg2)
163{
164    char tmp[128], buf[128];
165    if (__predict_false(sc->debug & DBG_PHY)) {
166        snprintf(tmp, sizeof(tmp), "ELINK: %s", fmt);
167        snprintf(buf, sizeof(buf), tmp, arg1, arg2);
168        device_printf(sc->dev, "%s", buf);
169    }
170}
171
172void
173elink_cb_dbg3(struct bxe_softc *sc,
174              char             *fmt,
175              uint32_t         arg1,
176              uint32_t         arg2,
177              uint32_t         arg3)
178{
179    char tmp[128], buf[128];
180    if (__predict_false(sc->debug & DBG_PHY)) {
181        snprintf(tmp, sizeof(tmp), "ELINK: %s", fmt);
182        snprintf(buf, sizeof(buf), tmp, arg1, arg2, arg3);
183        device_printf(sc->dev, "%s", buf);
184    }
185}
186
187#endif /* ELINK_DEBUG */
188
189extern struct mtx bxe_prev_mtx;
190
191void
192bxe_dump_mem(struct bxe_softc *sc,
193             char             *tag,
194             uint8_t          *mem,
195             uint32_t         len)
196{
197    char buf[256];
198    char c[32];
199    int  xx;
200
201    mtx_lock(&bxe_prev_mtx);
202
203    BLOGI(sc, "++++++++++++ %s\n", tag);
204    strcpy(buf, "** 000: ");
205
206    for (xx = 0; xx < len; xx++)
207    {
208        if ((xx != 0) && (xx % 16 == 0))
209        {
210            BLOGI(sc, "%s\n", buf);
211            strcpy(buf, "** ");
212            snprintf(c, sizeof(c), "%03x", xx);
213            strcat(buf, c);
214            strcat(buf, ": ");
215        }
216
217        snprintf(c, sizeof(c), "%02x ", *mem);
218        strcat(buf, c);
219
220        mem++;
221    }
222
223    BLOGI(sc, "%s\n", buf);
224    BLOGI(sc, "------------ %s\n", tag);
225
226    mtx_unlock(&bxe_prev_mtx);
227}
228
229void
230bxe_dump_mbuf_data(struct bxe_softc *sc,
231                   char             *tag,
232                   struct mbuf      *m,
233                   uint8_t          contents)
234{
235    char buf[256];
236    char c[32];
237    uint8_t *memp;
238    int i, xx = 0;
239
240    mtx_lock(&bxe_prev_mtx);
241
242    BLOGI(sc, "++++++++++++ %s\n", tag);
243
244    while (m)
245    {
246        memp = m->m_data;
247        strcpy(buf, "** > ");
248        snprintf(c, sizeof(c), "%03x", xx);
249        strcat(buf, c);
250        strcat(buf, ": ");
251
252        if (contents)
253        {
254            for (i = 0; i < m->m_len; i++)
255            {
256                if ((xx != 0) && (xx % 16 == 0))
257                {
258                    BLOGI(sc, "%s\n", buf);
259                    strcpy(buf, "**   ");
260                    snprintf(c, sizeof(c), "%03x", xx);
261                    strcat(buf, c);
262                    strcat(buf, ": ");
263                }
264
265                snprintf(c, sizeof(c), "%02x ", *memp);
266                strcat(buf, c);
267
268                memp++;
269                xx++;
270            }
271        }
272        else
273        {
274            snprintf(c, sizeof(c), "%d", m->m_len);
275            strcat(buf, c);
276            xx += m->m_len;
277        }
278
279        BLOGI(sc, "%s\n", buf);
280        m = m->m_next;
281    }
282
283    BLOGI(sc, "------------ %s\n", tag);
284
285    mtx_unlock(&bxe_prev_mtx);
286}
287
288#ifdef DDB
289
290static void bxe_ddb_usage()
291{
292    db_printf("Usage: bxe[/hpv] <instance> [<address>]\n");
293}
294
295static db_cmdfcn_t bxe_ddb;
296_DB_SET(_cmd, bxe, bxe_ddb, db_cmd_table, CS_OWN, NULL);
297
298static void bxe_ddb(db_expr_t blah1,
299                    boolean_t blah2,
300                    db_expr_t blah3,
301                    char      *blah4)
302{
303    char if_xname[IFNAMSIZ];
304    if_t ifp = NULL;
305    struct bxe_softc *sc;
306    db_expr_t next_arg;
307    int index;
308    int tok;
309    int mod_phys_addr = FALSE;
310    int mod_virt_addr = FALSE;
311    db_addr_t addr;
312
313    tok = db_read_token();
314    if (tok == tSLASH) {
315        tok = db_read_token();
316        if (tok != tIDENT) {
317            db_printf("ERROR: bad modifier\n");
318            bxe_ddb_usage();
319            goto bxe_ddb_done;
320        }
321        if (strcmp(db_tok_string, "h") == 0) {
322            bxe_ddb_usage();
323            goto bxe_ddb_done;
324        } else if (strcmp(db_tok_string, "p") == 0) {
325            mod_phys_addr = TRUE;
326        } else if (strcmp(db_tok_string, "v") == 0) {
327            mod_virt_addr = TRUE;
328        }
329    } else {
330        db_unread_token(tok);
331    }
332
333    if (!db_expression((db_expr_t *)&index)) {
334        db_printf("ERROR: bxe index missing\n");
335        bxe_ddb_usage();
336        goto bxe_ddb_done;
337    }
338
339    snprintf(if_xname, sizeof(if_xname), "bxe%d", index);
340    if ((ifp = ifunit_ref(if_xname)) == NULL) /* XXX */
341    {
342        db_printf("ERROR: Invalid interface %s\n", if_xname);
343        goto bxe_ddb_done;
344    }
345
346    sc = (struct bxe_softc *)if_getsoftc(ifp);
347    db_printf("ifnet=%p (%s)\n", ifp, if_xname);
348    db_printf("softc=%p\n", sc);
349    db_printf("  dev=%p\n", sc->dev);
350    db_printf("  BDF=%d:%d:%d\n",
351              sc->pcie_bus, sc->pcie_device, sc->pcie_func);
352
353    if (mod_phys_addr || mod_virt_addr) {
354        if (!db_expression((db_addr_t *)&addr)) {
355            db_printf("ERROR: Invalid address\n");
356            bxe_ddb_usage();
357            goto bxe_ddb_done;
358        }
359
360        db_printf("addr=%p", addr);
361    }
362
363bxe_ddb_done:
364
365    db_flush_lex();
366    if (ifp) if_rele(ifp);
367}
368
369#endif /* DDB */
370
371