1/*-
2 * Copyright (c) 2012-2015 Solarflare Communications Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
29 */
30
31#include <sys/cdefs.h>
| 1/*-
2 * Copyright (c) 2012-2015 Solarflare Communications Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice,
9 * this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright notice,
11 * this list of conditions and the following disclaimer in the documentation
12 * and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
15 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
16 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
21 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
22 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
23 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
24 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * The views and conclusions contained in the software and documentation are
27 * those of the authors and should not be interpreted as representing official
28 * policies, either expressed or implied, of the FreeBSD Project.
29 */
30
31#include <sys/cdefs.h>
|
33
34#include "efsys.h"
35#include "efx.h"
36#include "efx_impl.h"
37
38#if EFSYS_OPT_SIENA && EFSYS_OPT_MCDI
39
40#define SIENA_MCDI_PDU(_emip) \
41 (((emip)->emi_port == 1) \
42 ? MC_SMEM_P0_PDU_OFST >> 2 \
43 : MC_SMEM_P1_PDU_OFST >> 2)
44
45#define SIENA_MCDI_DOORBELL(_emip) \
46 (((emip)->emi_port == 1) \
47 ? MC_SMEM_P0_DOORBELL_OFST >> 2 \
48 : MC_SMEM_P1_DOORBELL_OFST >> 2)
49
50#define SIENA_MCDI_STATUS(_emip) \
51 (((emip)->emi_port == 1) \
52 ? MC_SMEM_P0_STATUS_OFST >> 2 \
53 : MC_SMEM_P1_STATUS_OFST >> 2)
54
55
56 void
57siena_mcdi_request_copyin(
58 __in efx_nic_t *enp,
59 __in efx_mcdi_req_t *emrp,
60 __in unsigned int seq,
61 __in boolean_t ev_cpl,
62 __in boolean_t new_epoch)
63{
64 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
65 efx_dword_t dword;
66 unsigned int xflags;
67 unsigned int pdur;
68 unsigned int dbr;
69 unsigned int pos;
70
71 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
72 _NOTE(ARGUNUSED(new_epoch))
73
74 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
75 pdur = SIENA_MCDI_PDU(emip);
76 dbr = SIENA_MCDI_DOORBELL(emip);
77
78 xflags = 0;
79 if (ev_cpl)
80 xflags |= MCDI_HEADER_XFLAGS_EVREQ;
81
82 /* Construct the header in shared memory */
83 EFX_POPULATE_DWORD_6(dword,
84 MCDI_HEADER_CODE, emrp->emr_cmd,
85 MCDI_HEADER_RESYNC, 1,
86 MCDI_HEADER_DATALEN, emrp->emr_in_length,
87 MCDI_HEADER_SEQ, seq,
88 MCDI_HEADER_RESPONSE, 0,
89 MCDI_HEADER_XFLAGS, xflags);
90 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_TRUE);
91
92 for (pos = 0; pos < emrp->emr_in_length; pos += sizeof (efx_dword_t)) {
93 memcpy(&dword, MCDI_IN(*emrp, efx_dword_t, pos),
94 MIN(sizeof (dword), emrp->emr_in_length - pos));
95 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM,
96 pdur + 1 + (pos >> 2), &dword, B_FALSE);
97 }
98
99 /* Ring the doorbell */
100 EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xd004be11);
101 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, dbr, &dword, B_FALSE);
102}
103
104 void
105siena_mcdi_request_copyout(
106 __in efx_nic_t *enp,
107 __in efx_mcdi_req_t *emrp)
108{
109 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
110 unsigned int pos;
111 unsigned int pdur;
112 efx_dword_t data;
113
114 pdur = SIENA_MCDI_PDU(emip);
115
116 /* Copy payload out if caller supplied buffer */
117 if (emrp->emr_out_buf != NULL) {
118 size_t bytes = MIN(emrp->emr_out_length_used,
119 emrp->emr_out_length);
120 for (pos = 0; pos < bytes; pos += sizeof (efx_dword_t)) {
121 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
122 pdur + 1 + (pos >> 2), &data, B_FALSE);
123 memcpy(MCDI_OUT(*emrp, efx_dword_t, pos), &data,
124 MIN(sizeof (data), bytes - pos));
125 }
126 }
127}
128
129 efx_rc_t
130siena_mcdi_poll_reboot(
131 __in efx_nic_t *enp)
132{
133#ifndef EFX_GRACEFUL_MC_REBOOT
134 /*
135 * This function is not being used properly.
136 * Until its callers are fixed, it should always return 0.
137 */
138 _NOTE(ARGUNUSED(enp))
139 return (0);
140#else
141 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
142 unsigned int rebootr;
143 efx_dword_t dword;
144 uint32_t value;
145
146 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
147 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
148 rebootr = SIENA_MCDI_STATUS(emip);
149
150 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
151 value = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
152
153 if (value == 0)
154 return (0);
155
156 EFX_ZERO_DWORD(dword);
157 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
158
159 if (value == MC_STATUS_DWORD_ASSERT)
160 return (EINTR);
161 else
162 return (EIO);
163#endif
164}
165
166 __checkReturn boolean_t
167siena_mcdi_request_poll(
168 __in efx_nic_t *enp)
169{
170 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
171 efx_mcdi_req_t *emrp;
172 efx_dword_t dword;
173 unsigned int pdur;
174 unsigned int seq;
175 unsigned int length;
176 int state;
177 efx_rc_t rc;
178
179 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
180
181 /* Serialise against post-watchdog efx_mcdi_ev* */
182 EFSYS_LOCK(enp->en_eslp, state);
183
184 EFSYS_ASSERT(emip->emi_pending_req != NULL);
185 EFSYS_ASSERT(!emip->emi_ev_cpl);
186 emrp = emip->emi_pending_req;
187
188 /* Check for reboot atomically w.r.t efx_mcdi_request_start */
189 if (emip->emi_poll_cnt++ == 0) {
190 if ((rc = siena_mcdi_poll_reboot(enp)) != 0) {
191 emip->emi_pending_req = NULL;
192 EFSYS_UNLOCK(enp->en_eslp, state);
193
194 goto fail1;
195 }
196 }
197
198 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
199 pdur = SIENA_MCDI_PDU(emip);
200
201 /* Read the command header */
202 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_FALSE);
203 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_RESPONSE) == 0) {
204 EFSYS_UNLOCK(enp->en_eslp, state);
205 return (B_FALSE);
206 }
207
208 /* Request complete */
209 emip->emi_pending_req = NULL;
210 seq = (emip->emi_seq - 1) & EFX_MASK32(MCDI_HEADER_SEQ);
211
212 /* Check for synchronous reboot */
213 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_ERROR) != 0 &&
214 EFX_DWORD_FIELD(dword, MCDI_HEADER_DATALEN) == 0) {
215 /* Consume status word */
216 EFSYS_SPIN(EFX_MCDI_STATUS_SLEEP_US);
217 siena_mcdi_poll_reboot(enp);
218 EFSYS_UNLOCK(enp->en_eslp, state);
219 rc = EIO;
220 goto fail2;
221 }
222
223 EFSYS_UNLOCK(enp->en_eslp, state);
224
225 /* Check that the returned data is consistent */
226 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_CODE) != emrp->emr_cmd ||
227 EFX_DWORD_FIELD(dword, MCDI_HEADER_SEQ) != seq) {
228 /* Response is for a different request */
229 rc = EIO;
230 goto fail3;
231 }
232
233 length = EFX_DWORD_FIELD(dword, MCDI_HEADER_DATALEN);
234 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_ERROR)) {
235 efx_dword_t errdword;
236 int errcode;
237
238 EFSYS_ASSERT3U(length, ==, 4);
239 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
240 pdur + 1 + (MC_CMD_ERR_CODE_OFST >> 2),
241 &errdword, B_FALSE);
242 errcode = EFX_DWORD_FIELD(errdword, EFX_DWORD_0);
243 rc = efx_mcdi_request_errcode(errcode);
244 if (!emrp->emr_quiet) {
245 EFSYS_PROBE2(mcdi_err, int, emrp->emr_cmd,
246 int, errcode);
247 }
248 goto fail4;
249
250 } else {
251 emrp->emr_out_length_used = length;
252 emrp->emr_rc = 0;
253 siena_mcdi_request_copyout(enp, emrp);
254 }
255
256 goto out;
257
258fail4:
259 if (!emrp->emr_quiet)
260 EFSYS_PROBE(fail4);
261fail3:
262 if (!emrp->emr_quiet)
263 EFSYS_PROBE(fail3);
264fail2:
265 if (!emrp->emr_quiet)
266 EFSYS_PROBE(fail2);
267fail1:
268 if (!emrp->emr_quiet)
269 EFSYS_PROBE1(fail1, efx_rc_t, rc);
270
271 /* Fill out error state */
272 emrp->emr_rc = rc;
273 emrp->emr_out_length_used = 0;
274
275 /* Reboot/Assertion */
276 if (rc == EIO || rc == EINTR)
277 efx_mcdi_raise_exception(enp, emrp, rc);
278
279out:
280 return (B_TRUE);
281}
282
283 __checkReturn efx_rc_t
284siena_mcdi_init(
285 __in efx_nic_t *enp,
286 __in const efx_mcdi_transport_t *mtp)
287{
288 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
289 efx_oword_t oword;
290 unsigned int portnum;
291 efx_rc_t rc;
292
293 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
294
295 /* Determine the port number to use for MCDI */
296 EFX_BAR_READO(enp, FR_AZ_CS_DEBUG_REG, &oword);
297 portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM);
298
299 if (portnum == 0) {
300 /* Presumably booted from ROM; only MCDI port 1 will work */
301 emip->emi_port = 1;
302 } else if (portnum <= 2) {
303 emip->emi_port = portnum;
304 } else {
305 rc = EINVAL;
306 goto fail1;
307 }
308
309 /*
310 * Wipe the atomic reboot status so subsequent MCDI requests succeed.
311 * BOOT_STATUS is preserved so eno_nic_probe() can boot out of the
312 * assertion handler.
313 */
314 (void) siena_mcdi_poll_reboot(enp);
315
316 return (0);
317
318fail1:
319 EFSYS_PROBE1(fail1, efx_rc_t, rc);
320
321 return (rc);
322}
323
324 void
325siena_mcdi_fini(
326 __in efx_nic_t *enp)
327{
328}
329
330 __checkReturn efx_rc_t
331siena_mcdi_fw_update_supported(
332 __in efx_nic_t *enp,
333 __out boolean_t *supportedp)
334{
335 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
336
337 *supportedp = B_TRUE;
338
339 return (0);
340}
341
342 __checkReturn efx_rc_t
343siena_mcdi_macaddr_change_supported(
344 __in efx_nic_t *enp,
345 __out boolean_t *supportedp)
346{
347 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
348
349 *supportedp = B_TRUE;
350
351 return (0);
352}
353
| 33
34#include "efsys.h"
35#include "efx.h"
36#include "efx_impl.h"
37
38#if EFSYS_OPT_SIENA && EFSYS_OPT_MCDI
39
40#define SIENA_MCDI_PDU(_emip) \
41 (((emip)->emi_port == 1) \
42 ? MC_SMEM_P0_PDU_OFST >> 2 \
43 : MC_SMEM_P1_PDU_OFST >> 2)
44
45#define SIENA_MCDI_DOORBELL(_emip) \
46 (((emip)->emi_port == 1) \
47 ? MC_SMEM_P0_DOORBELL_OFST >> 2 \
48 : MC_SMEM_P1_DOORBELL_OFST >> 2)
49
50#define SIENA_MCDI_STATUS(_emip) \
51 (((emip)->emi_port == 1) \
52 ? MC_SMEM_P0_STATUS_OFST >> 2 \
53 : MC_SMEM_P1_STATUS_OFST >> 2)
54
55
56 void
57siena_mcdi_request_copyin(
58 __in efx_nic_t *enp,
59 __in efx_mcdi_req_t *emrp,
60 __in unsigned int seq,
61 __in boolean_t ev_cpl,
62 __in boolean_t new_epoch)
63{
64 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
65 efx_dword_t dword;
66 unsigned int xflags;
67 unsigned int pdur;
68 unsigned int dbr;
69 unsigned int pos;
70
71 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
72 _NOTE(ARGUNUSED(new_epoch))
73
74 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
75 pdur = SIENA_MCDI_PDU(emip);
76 dbr = SIENA_MCDI_DOORBELL(emip);
77
78 xflags = 0;
79 if (ev_cpl)
80 xflags |= MCDI_HEADER_XFLAGS_EVREQ;
81
82 /* Construct the header in shared memory */
83 EFX_POPULATE_DWORD_6(dword,
84 MCDI_HEADER_CODE, emrp->emr_cmd,
85 MCDI_HEADER_RESYNC, 1,
86 MCDI_HEADER_DATALEN, emrp->emr_in_length,
87 MCDI_HEADER_SEQ, seq,
88 MCDI_HEADER_RESPONSE, 0,
89 MCDI_HEADER_XFLAGS, xflags);
90 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_TRUE);
91
92 for (pos = 0; pos < emrp->emr_in_length; pos += sizeof (efx_dword_t)) {
93 memcpy(&dword, MCDI_IN(*emrp, efx_dword_t, pos),
94 MIN(sizeof (dword), emrp->emr_in_length - pos));
95 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM,
96 pdur + 1 + (pos >> 2), &dword, B_FALSE);
97 }
98
99 /* Ring the doorbell */
100 EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xd004be11);
101 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, dbr, &dword, B_FALSE);
102}
103
104 void
105siena_mcdi_request_copyout(
106 __in efx_nic_t *enp,
107 __in efx_mcdi_req_t *emrp)
108{
109 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
110 unsigned int pos;
111 unsigned int pdur;
112 efx_dword_t data;
113
114 pdur = SIENA_MCDI_PDU(emip);
115
116 /* Copy payload out if caller supplied buffer */
117 if (emrp->emr_out_buf != NULL) {
118 size_t bytes = MIN(emrp->emr_out_length_used,
119 emrp->emr_out_length);
120 for (pos = 0; pos < bytes; pos += sizeof (efx_dword_t)) {
121 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
122 pdur + 1 + (pos >> 2), &data, B_FALSE);
123 memcpy(MCDI_OUT(*emrp, efx_dword_t, pos), &data,
124 MIN(sizeof (data), bytes - pos));
125 }
126 }
127}
128
129 efx_rc_t
130siena_mcdi_poll_reboot(
131 __in efx_nic_t *enp)
132{
133#ifndef EFX_GRACEFUL_MC_REBOOT
134 /*
135 * This function is not being used properly.
136 * Until its callers are fixed, it should always return 0.
137 */
138 _NOTE(ARGUNUSED(enp))
139 return (0);
140#else
141 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
142 unsigned int rebootr;
143 efx_dword_t dword;
144 uint32_t value;
145
146 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
147 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
148 rebootr = SIENA_MCDI_STATUS(emip);
149
150 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
151 value = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
152
153 if (value == 0)
154 return (0);
155
156 EFX_ZERO_DWORD(dword);
157 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
158
159 if (value == MC_STATUS_DWORD_ASSERT)
160 return (EINTR);
161 else
162 return (EIO);
163#endif
164}
165
166 __checkReturn boolean_t
167siena_mcdi_request_poll(
168 __in efx_nic_t *enp)
169{
170 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
171 efx_mcdi_req_t *emrp;
172 efx_dword_t dword;
173 unsigned int pdur;
174 unsigned int seq;
175 unsigned int length;
176 int state;
177 efx_rc_t rc;
178
179 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
180
181 /* Serialise against post-watchdog efx_mcdi_ev* */
182 EFSYS_LOCK(enp->en_eslp, state);
183
184 EFSYS_ASSERT(emip->emi_pending_req != NULL);
185 EFSYS_ASSERT(!emip->emi_ev_cpl);
186 emrp = emip->emi_pending_req;
187
188 /* Check for reboot atomically w.r.t efx_mcdi_request_start */
189 if (emip->emi_poll_cnt++ == 0) {
190 if ((rc = siena_mcdi_poll_reboot(enp)) != 0) {
191 emip->emi_pending_req = NULL;
192 EFSYS_UNLOCK(enp->en_eslp, state);
193
194 goto fail1;
195 }
196 }
197
198 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
199 pdur = SIENA_MCDI_PDU(emip);
200
201 /* Read the command header */
202 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_FALSE);
203 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_RESPONSE) == 0) {
204 EFSYS_UNLOCK(enp->en_eslp, state);
205 return (B_FALSE);
206 }
207
208 /* Request complete */
209 emip->emi_pending_req = NULL;
210 seq = (emip->emi_seq - 1) & EFX_MASK32(MCDI_HEADER_SEQ);
211
212 /* Check for synchronous reboot */
213 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_ERROR) != 0 &&
214 EFX_DWORD_FIELD(dword, MCDI_HEADER_DATALEN) == 0) {
215 /* Consume status word */
216 EFSYS_SPIN(EFX_MCDI_STATUS_SLEEP_US);
217 siena_mcdi_poll_reboot(enp);
218 EFSYS_UNLOCK(enp->en_eslp, state);
219 rc = EIO;
220 goto fail2;
221 }
222
223 EFSYS_UNLOCK(enp->en_eslp, state);
224
225 /* Check that the returned data is consistent */
226 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_CODE) != emrp->emr_cmd ||
227 EFX_DWORD_FIELD(dword, MCDI_HEADER_SEQ) != seq) {
228 /* Response is for a different request */
229 rc = EIO;
230 goto fail3;
231 }
232
233 length = EFX_DWORD_FIELD(dword, MCDI_HEADER_DATALEN);
234 if (EFX_DWORD_FIELD(dword, MCDI_HEADER_ERROR)) {
235 efx_dword_t errdword;
236 int errcode;
237
238 EFSYS_ASSERT3U(length, ==, 4);
239 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
240 pdur + 1 + (MC_CMD_ERR_CODE_OFST >> 2),
241 &errdword, B_FALSE);
242 errcode = EFX_DWORD_FIELD(errdword, EFX_DWORD_0);
243 rc = efx_mcdi_request_errcode(errcode);
244 if (!emrp->emr_quiet) {
245 EFSYS_PROBE2(mcdi_err, int, emrp->emr_cmd,
246 int, errcode);
247 }
248 goto fail4;
249
250 } else {
251 emrp->emr_out_length_used = length;
252 emrp->emr_rc = 0;
253 siena_mcdi_request_copyout(enp, emrp);
254 }
255
256 goto out;
257
258fail4:
259 if (!emrp->emr_quiet)
260 EFSYS_PROBE(fail4);
261fail3:
262 if (!emrp->emr_quiet)
263 EFSYS_PROBE(fail3);
264fail2:
265 if (!emrp->emr_quiet)
266 EFSYS_PROBE(fail2);
267fail1:
268 if (!emrp->emr_quiet)
269 EFSYS_PROBE1(fail1, efx_rc_t, rc);
270
271 /* Fill out error state */
272 emrp->emr_rc = rc;
273 emrp->emr_out_length_used = 0;
274
275 /* Reboot/Assertion */
276 if (rc == EIO || rc == EINTR)
277 efx_mcdi_raise_exception(enp, emrp, rc);
278
279out:
280 return (B_TRUE);
281}
282
283 __checkReturn efx_rc_t
284siena_mcdi_init(
285 __in efx_nic_t *enp,
286 __in const efx_mcdi_transport_t *mtp)
287{
288 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
289 efx_oword_t oword;
290 unsigned int portnum;
291 efx_rc_t rc;
292
293 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
294
295 /* Determine the port number to use for MCDI */
296 EFX_BAR_READO(enp, FR_AZ_CS_DEBUG_REG, &oword);
297 portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM);
298
299 if (portnum == 0) {
300 /* Presumably booted from ROM; only MCDI port 1 will work */
301 emip->emi_port = 1;
302 } else if (portnum <= 2) {
303 emip->emi_port = portnum;
304 } else {
305 rc = EINVAL;
306 goto fail1;
307 }
308
309 /*
310 * Wipe the atomic reboot status so subsequent MCDI requests succeed.
311 * BOOT_STATUS is preserved so eno_nic_probe() can boot out of the
312 * assertion handler.
313 */
314 (void) siena_mcdi_poll_reboot(enp);
315
316 return (0);
317
318fail1:
319 EFSYS_PROBE1(fail1, efx_rc_t, rc);
320
321 return (rc);
322}
323
324 void
325siena_mcdi_fini(
326 __in efx_nic_t *enp)
327{
328}
329
330 __checkReturn efx_rc_t
331siena_mcdi_fw_update_supported(
332 __in efx_nic_t *enp,
333 __out boolean_t *supportedp)
334{
335 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
336
337 *supportedp = B_TRUE;
338
339 return (0);
340}
341
342 __checkReturn efx_rc_t
343siena_mcdi_macaddr_change_supported(
344 __in efx_nic_t *enp,
345 __out boolean_t *supportedp)
346{
347 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
348
349 *supportedp = B_TRUE;
350
351 return (0);
352}
353
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