1/*-
2 * Copyright (c) 2012-2016 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) 2012-2016 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>
|
32__FBSDID("$FreeBSD: head/sys/dev/sfxge/common/siena_mcdi.c 300607 2016-05-24 12:16:57Z arybchik $");
| 32__FBSDID("$FreeBSD: head/sys/dev/sfxge/common/siena_mcdi.c 300840 2016-05-27 11:44:40Z arybchik $");
|
33
34#include "efx.h"
35#include "efx_impl.h"
36
37#if EFSYS_OPT_SIENA && EFSYS_OPT_MCDI
38
39#define SIENA_MCDI_PDU(_emip) \
40 (((emip)->emi_port == 1) \
41 ? MC_SMEM_P0_PDU_OFST >> 2 \
42 : MC_SMEM_P1_PDU_OFST >> 2)
43
44#define SIENA_MCDI_DOORBELL(_emip) \
45 (((emip)->emi_port == 1) \
46 ? MC_SMEM_P0_DOORBELL_OFST >> 2 \
47 : MC_SMEM_P1_DOORBELL_OFST >> 2)
48
49#define SIENA_MCDI_STATUS(_emip) \
50 (((emip)->emi_port == 1) \
51 ? MC_SMEM_P0_STATUS_OFST >> 2 \
52 : MC_SMEM_P1_STATUS_OFST >> 2)
53
54
55 void
56siena_mcdi_send_request(
57 __in efx_nic_t *enp,
58 __in void *hdrp,
59 __in size_t hdr_len,
60 __in void *sdup,
61 __in size_t sdu_len)
62{
63 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
64 efx_dword_t dword;
65 unsigned int pdur;
66 unsigned int dbr;
67 unsigned int pos;
68
69 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
70
71 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
72 pdur = SIENA_MCDI_PDU(emip);
73 dbr = SIENA_MCDI_DOORBELL(emip);
74
75 /* Write the header */
76 EFSYS_ASSERT3U(hdr_len, ==, sizeof (efx_dword_t));
77 dword = *(efx_dword_t *)hdrp;
78 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_TRUE);
79
80 /* Write the payload */
81 for (pos = 0; pos < sdu_len; pos += sizeof (efx_dword_t)) {
82 dword = *(efx_dword_t *)((uint8_t *)sdup + pos);
83 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM,
84 pdur + 1 + (pos >> 2), &dword, B_FALSE);
85 }
86
87 /* Ring the doorbell */
88 EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xd004be11);
89 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, dbr, &dword, B_FALSE);
90}
91
92 efx_rc_t
93siena_mcdi_poll_reboot(
94 __in efx_nic_t *enp)
95{
96#ifndef EFX_GRACEFUL_MC_REBOOT
97 /*
98 * This function is not being used properly.
99 * Until its callers are fixed, it should always return 0.
100 */
101 _NOTE(ARGUNUSED(enp))
102 return (0);
103#else
104 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
105 unsigned int rebootr;
106 efx_dword_t dword;
107 uint32_t value;
108
109 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
110 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
111 rebootr = SIENA_MCDI_STATUS(emip);
112
113 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
114 value = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
115
116 if (value == 0)
117 return (0);
118
119 EFX_ZERO_DWORD(dword);
120 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
121
122 if (value == MC_STATUS_DWORD_ASSERT)
123 return (EINTR);
124 else
125 return (EIO);
126#endif
127}
128
129extern __checkReturn boolean_t
130siena_mcdi_poll_response(
131 __in efx_nic_t *enp)
132{
133 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
134 efx_dword_t hdr;
135 unsigned int pdur;
136
137 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
138 pdur = SIENA_MCDI_PDU(emip);
139
140 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, pdur, &hdr, B_FALSE);
141 return (EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE) ? B_TRUE : B_FALSE);
142}
143
144 void
145siena_mcdi_read_response(
146 __in efx_nic_t *enp,
147 __out_bcount(length) void *bufferp,
148 __in size_t offset,
149 __in size_t length)
150{
151 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
152 unsigned int pdur;
153 unsigned int pos;
154 efx_dword_t data;
155
156 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
157 pdur = SIENA_MCDI_PDU(emip);
158
159 for (pos = 0; pos < length; pos += sizeof (efx_dword_t)) {
160 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
161 pdur + ((offset + pos) >> 2), &data, B_FALSE);
162 memcpy((uint8_t *)bufferp + pos, &data,
163 MIN(sizeof (data), length - pos));
164 }
165}
166
167 __checkReturn efx_rc_t
168siena_mcdi_init(
169 __in efx_nic_t *enp,
170 __in const efx_mcdi_transport_t *mtp)
171{
172 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
173 efx_oword_t oword;
174 unsigned int portnum;
175 efx_rc_t rc;
176
| 33
34#include "efx.h"
35#include "efx_impl.h"
36
37#if EFSYS_OPT_SIENA && EFSYS_OPT_MCDI
38
39#define SIENA_MCDI_PDU(_emip) \
40 (((emip)->emi_port == 1) \
41 ? MC_SMEM_P0_PDU_OFST >> 2 \
42 : MC_SMEM_P1_PDU_OFST >> 2)
43
44#define SIENA_MCDI_DOORBELL(_emip) \
45 (((emip)->emi_port == 1) \
46 ? MC_SMEM_P0_DOORBELL_OFST >> 2 \
47 : MC_SMEM_P1_DOORBELL_OFST >> 2)
48
49#define SIENA_MCDI_STATUS(_emip) \
50 (((emip)->emi_port == 1) \
51 ? MC_SMEM_P0_STATUS_OFST >> 2 \
52 : MC_SMEM_P1_STATUS_OFST >> 2)
53
54
55 void
56siena_mcdi_send_request(
57 __in efx_nic_t *enp,
58 __in void *hdrp,
59 __in size_t hdr_len,
60 __in void *sdup,
61 __in size_t sdu_len)
62{
63 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
64 efx_dword_t dword;
65 unsigned int pdur;
66 unsigned int dbr;
67 unsigned int pos;
68
69 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
70
71 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
72 pdur = SIENA_MCDI_PDU(emip);
73 dbr = SIENA_MCDI_DOORBELL(emip);
74
75 /* Write the header */
76 EFSYS_ASSERT3U(hdr_len, ==, sizeof (efx_dword_t));
77 dword = *(efx_dword_t *)hdrp;
78 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, pdur, &dword, B_TRUE);
79
80 /* Write the payload */
81 for (pos = 0; pos < sdu_len; pos += sizeof (efx_dword_t)) {
82 dword = *(efx_dword_t *)((uint8_t *)sdup + pos);
83 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM,
84 pdur + 1 + (pos >> 2), &dword, B_FALSE);
85 }
86
87 /* Ring the doorbell */
88 EFX_POPULATE_DWORD_1(dword, EFX_DWORD_0, 0xd004be11);
89 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, dbr, &dword, B_FALSE);
90}
91
92 efx_rc_t
93siena_mcdi_poll_reboot(
94 __in efx_nic_t *enp)
95{
96#ifndef EFX_GRACEFUL_MC_REBOOT
97 /*
98 * This function is not being used properly.
99 * Until its callers are fixed, it should always return 0.
100 */
101 _NOTE(ARGUNUSED(enp))
102 return (0);
103#else
104 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
105 unsigned int rebootr;
106 efx_dword_t dword;
107 uint32_t value;
108
109 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
110 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
111 rebootr = SIENA_MCDI_STATUS(emip);
112
113 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
114 value = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
115
116 if (value == 0)
117 return (0);
118
119 EFX_ZERO_DWORD(dword);
120 EFX_BAR_TBL_WRITED(enp, FR_CZ_MC_TREG_SMEM, rebootr, &dword, B_FALSE);
121
122 if (value == MC_STATUS_DWORD_ASSERT)
123 return (EINTR);
124 else
125 return (EIO);
126#endif
127}
128
129extern __checkReturn boolean_t
130siena_mcdi_poll_response(
131 __in efx_nic_t *enp)
132{
133 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
134 efx_dword_t hdr;
135 unsigned int pdur;
136
137 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
138 pdur = SIENA_MCDI_PDU(emip);
139
140 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM, pdur, &hdr, B_FALSE);
141 return (EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE) ? B_TRUE : B_FALSE);
142}
143
144 void
145siena_mcdi_read_response(
146 __in efx_nic_t *enp,
147 __out_bcount(length) void *bufferp,
148 __in size_t offset,
149 __in size_t length)
150{
151 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
152 unsigned int pdur;
153 unsigned int pos;
154 efx_dword_t data;
155
156 EFSYS_ASSERT(emip->emi_port == 1 || emip->emi_port == 2);
157 pdur = SIENA_MCDI_PDU(emip);
158
159 for (pos = 0; pos < length; pos += sizeof (efx_dword_t)) {
160 EFX_BAR_TBL_READD(enp, FR_CZ_MC_TREG_SMEM,
161 pdur + ((offset + pos) >> 2), &data, B_FALSE);
162 memcpy((uint8_t *)bufferp + pos, &data,
163 MIN(sizeof (data), length - pos));
164 }
165}
166
167 __checkReturn efx_rc_t
168siena_mcdi_init(
169 __in efx_nic_t *enp,
170 __in const efx_mcdi_transport_t *mtp)
171{
172 efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
173 efx_oword_t oword;
174 unsigned int portnum;
175 efx_rc_t rc;
176
|
| 177 _NOTE(ARGUNUSED(mtp))
178
|
177 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
178
179 /* Determine the port number to use for MCDI */
180 EFX_BAR_READO(enp, FR_AZ_CS_DEBUG_REG, &oword);
181 portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM);
182
183 if (portnum == 0) {
184 /* Presumably booted from ROM; only MCDI port 1 will work */
185 emip->emi_port = 1;
186 } else if (portnum <= 2) {
187 emip->emi_port = portnum;
188 } else {
189 rc = EINVAL;
190 goto fail1;
191 }
192
193 /* Siena BootROM and firmware only support MCDIv1 */
194 emip->emi_max_version = 1;
195
196 /*
197 * Wipe the atomic reboot status so subsequent MCDI requests succeed.
198 * BOOT_STATUS is preserved so eno_nic_probe() can boot out of the
199 * assertion handler.
200 */
201 (void) siena_mcdi_poll_reboot(enp);
202
203 return (0);
204
205fail1:
206 EFSYS_PROBE1(fail1, efx_rc_t, rc);
207
208 return (rc);
209}
210
211 void
212siena_mcdi_fini(
213 __in efx_nic_t *enp)
214{
| 179 EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
180
181 /* Determine the port number to use for MCDI */
182 EFX_BAR_READO(enp, FR_AZ_CS_DEBUG_REG, &oword);
183 portnum = EFX_OWORD_FIELD(oword, FRF_CZ_CS_PORT_NUM);
184
185 if (portnum == 0) {
186 /* Presumably booted from ROM; only MCDI port 1 will work */
187 emip->emi_port = 1;
188 } else if (portnum <= 2) {
189 emip->emi_port = portnum;
190 } else {
191 rc = EINVAL;
192 goto fail1;
193 }
194
195 /* Siena BootROM and firmware only support MCDIv1 */
196 emip->emi_max_version = 1;
197
198 /*
199 * Wipe the atomic reboot status so subsequent MCDI requests succeed.
200 * BOOT_STATUS is preserved so eno_nic_probe() can boot out of the
201 * assertion handler.
202 */
203 (void) siena_mcdi_poll_reboot(enp);
204
205 return (0);
206
207fail1:
208 EFSYS_PROBE1(fail1, efx_rc_t, rc);
209
210 return (rc);
211}
212
213 void
214siena_mcdi_fini(
215 __in efx_nic_t *enp)
216{
|
| 217 _NOTE(ARGUNUSED(enp))
|
215}
216
217 __checkReturn efx_rc_t
218siena_mcdi_feature_supported(
219 __in efx_nic_t *enp,
220 __in efx_mcdi_feature_id_t id,
221 __out boolean_t *supportedp)
222{
223 efx_rc_t rc;
224
225 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
226
227 switch (id) {
228 case EFX_MCDI_FEATURE_FW_UPDATE:
229 case EFX_MCDI_FEATURE_LINK_CONTROL:
230 case EFX_MCDI_FEATURE_MACADDR_CHANGE:
231 case EFX_MCDI_FEATURE_MAC_SPOOFING:
232 *supportedp = B_TRUE;
233 break;
234 default:
235 rc = ENOTSUP;
236 goto fail1;
237 break;
238 }
239
240 return (0);
241
242fail1:
243 EFSYS_PROBE1(fail1, efx_rc_t, rc);
244
245 return (rc);
246}
247
248#endif /* EFSYS_OPT_SIENA && EFSYS_OPT_MCDI */
| 218}
219
220 __checkReturn efx_rc_t
221siena_mcdi_feature_supported(
222 __in efx_nic_t *enp,
223 __in efx_mcdi_feature_id_t id,
224 __out boolean_t *supportedp)
225{
226 efx_rc_t rc;
227
228 EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
229
230 switch (id) {
231 case EFX_MCDI_FEATURE_FW_UPDATE:
232 case EFX_MCDI_FEATURE_LINK_CONTROL:
233 case EFX_MCDI_FEATURE_MACADDR_CHANGE:
234 case EFX_MCDI_FEATURE_MAC_SPOOFING:
235 *supportedp = B_TRUE;
236 break;
237 default:
238 rc = ENOTSUP;
239 goto fail1;
240 break;
241 }
242
243 return (0);
244
245fail1:
246 EFSYS_PROBE1(fail1, efx_rc_t, rc);
247
248 return (rc);
249}
250
251#endif /* EFSYS_OPT_SIENA && EFSYS_OPT_MCDI */
|