1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright(c) 2019-2021 Xilinx, Inc.
4 * Copyright(c) 2009-2019 Solarflare Communications Inc.
15 #include "ef10_tlv_layout.h"
17 __checkReturn efx_rc_t
27 EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
28 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
30 if (enp->en_nic_cfg.enc_vpd_is_global) {
31 tag = TLV_TAG_GLOBAL_STATIC_VPD;
33 pci_pf = enp->en_nic_cfg.enc_pf;
34 tag = TLV_TAG_PF_STATIC_VPD(pci_pf);
38 * The VPD interface exposes VPD resources from the combined static and
39 * dynamic VPD storage. As the static VPD configuration should *never*
40 * change, we can cache it.
44 rc = ef10_nvram_partn_read_tlv(enp,
45 NVRAM_PARTITION_TYPE_STATIC_CONFIG,
46 tag, &svpd, &svpd_size);
49 /* Unprivileged functions cannot access VPD */
55 if (svpd != NULL && svpd_size > 0) {
56 if ((rc = efx_vpd_hunk_verify(svpd, svpd_size, NULL)) != 0)
60 enp->en_arch.ef10.ena_svpd = svpd;
61 enp->en_arch.ef10.ena_svpd_length = svpd_size;
69 EFSYS_KMEM_FREE(enp->en_esip, svpd_size, svpd);
71 EFSYS_PROBE1(fail1, efx_rc_t, rc);
76 __checkReturn efx_rc_t
82 efx_nvram_info_t eni = { 0 };
84 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
87 * This function returns the total size the user should allocate
88 * for all VPD operations. We've already cached the static vpd,
89 * so we just need to return an upper bound on the dynamic vpd,
90 * which is the size of the DYNAMIC_CONFIG partition.
92 if ((rc = efx_mcdi_nvram_info(enp,
93 NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG, &eni)) != 0)
96 *sizep = eni.eni_partn_size;
101 EFSYS_PROBE1(fail1, efx_rc_t, rc);
106 __checkReturn efx_rc_t
109 __out_bcount(size) caddr_t data,
118 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
120 if (enp->en_nic_cfg.enc_vpd_is_global) {
121 tag = TLV_TAG_GLOBAL_DYNAMIC_VPD;
123 pci_pf = enp->en_nic_cfg.enc_pf;
124 tag = TLV_TAG_PF_DYNAMIC_VPD(pci_pf);
127 if ((rc = ef10_nvram_partn_read_tlv(enp,
128 NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG,
129 tag, &dvpd, &dvpd_size)) != 0)
132 if (dvpd_size > size) {
137 memcpy(data, dvpd, dvpd_size);
139 /* Pad data with all-1s, consistent with update operations */
140 memset(data + dvpd_size, 0xff, size - dvpd_size);
143 EFSYS_KMEM_FREE(enp->en_esip, dvpd_size, dvpd);
151 EFSYS_KMEM_FREE(enp->en_esip, dvpd_size, dvpd);
153 EFSYS_PROBE1(fail1, efx_rc_t, rc);
158 __checkReturn efx_rc_t
161 __in_bcount(size) caddr_t data,
166 efx_vpd_keyword_t skey;
167 efx_vpd_keyword_t dkey;
172 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
175 * Strictly you could take the view that dynamic vpd is optional.
176 * Instead, to conform more closely to the read/verify/reinit()
177 * paradigm, we require dynamic vpd. ef10_vpd_reinit() will
178 * reinitialize it as required.
180 if ((rc = efx_vpd_hunk_verify(data, size, NULL)) != 0)
184 * Verify that there is no duplication between the static and
185 * dynamic cfg sectors.
187 if (enp->en_arch.ef10.ena_svpd_length == 0)
191 _NOTE(CONSTANTCONDITION)
193 if ((rc = efx_vpd_hunk_next(data, size, &dtag,
194 &dkey, NULL, NULL, &dcont)) != 0)
200 * Skip the RV keyword. It should be present in both the static
201 * and dynamic cfg sectors.
203 if (dtag == EFX_VPD_RO && dkey == EFX_VPD_KEYWORD('R', 'V'))
207 _NOTE(CONSTANTCONDITION)
209 if ((rc = efx_vpd_hunk_next(
210 enp->en_arch.ef10.ena_svpd,
211 enp->en_arch.ef10.ena_svpd_length, &stag, &skey,
212 NULL, NULL, &scont)) != 0)
217 if (stag == dtag && skey == dkey) {
234 EFSYS_PROBE1(fail1, efx_rc_t, rc);
239 __checkReturn efx_rc_t
242 __in_bcount(size) caddr_t data,
249 * Only create an ID string if the dynamic cfg doesn't have one
251 if (enp->en_arch.ef10.ena_svpd_length == 0)
257 rc = efx_vpd_hunk_get(enp->en_arch.ef10.ena_svpd,
258 enp->en_arch.ef10.ena_svpd_length,
259 EFX_VPD_ID, 0, &offset, &length);
262 else if (rc == ENOENT)
268 if ((rc = efx_vpd_hunk_reinit(data, size, wantpid)) != 0)
276 EFSYS_PROBE1(fail1, efx_rc_t, rc);
281 __checkReturn efx_rc_t
284 __in_bcount(size) caddr_t data,
286 __inout efx_vpd_value_t *evvp)
292 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
294 /* Attempt to satisfy the request from svpd first */
295 if (enp->en_arch.ef10.ena_svpd_length > 0) {
296 if ((rc = efx_vpd_hunk_get(enp->en_arch.ef10.ena_svpd,
297 enp->en_arch.ef10.ena_svpd_length, evvp->evv_tag,
298 evvp->evv_keyword, &offset, &length)) == 0) {
299 evvp->evv_length = length;
300 memcpy(evvp->evv_value,
301 enp->en_arch.ef10.ena_svpd + offset, length);
303 } else if (rc != ENOENT)
307 /* And then from the provided data buffer */
308 if ((rc = efx_vpd_hunk_get(data, size, evvp->evv_tag,
309 evvp->evv_keyword, &offset, &length)) != 0) {
315 evvp->evv_length = length;
316 memcpy(evvp->evv_value, data + offset, length);
323 EFSYS_PROBE1(fail1, efx_rc_t, rc);
328 __checkReturn efx_rc_t
331 __in_bcount(size) caddr_t data,
333 __in efx_vpd_value_t *evvp)
337 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
339 /* If the provided (tag,keyword) exists in svpd, then it is readonly */
340 if (enp->en_arch.ef10.ena_svpd_length > 0) {
344 if ((rc = efx_vpd_hunk_get(enp->en_arch.ef10.ena_svpd,
345 enp->en_arch.ef10.ena_svpd_length, evvp->evv_tag,
346 evvp->evv_keyword, &offset, &length)) == 0) {
352 if ((rc = efx_vpd_hunk_set(data, size, evvp)) != 0)
360 EFSYS_PROBE1(fail1, efx_rc_t, rc);
365 __checkReturn efx_rc_t
368 __in_bcount(size) caddr_t data,
370 __out efx_vpd_value_t *evvp,
371 __inout unsigned int *contp)
373 _NOTE(ARGUNUSED(enp, data, size, evvp, contp))
378 __checkReturn efx_rc_t
381 __in_bcount(size) caddr_t data,
389 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
391 if (enp->en_nic_cfg.enc_vpd_is_global) {
392 tag = TLV_TAG_GLOBAL_DYNAMIC_VPD;
394 pci_pf = enp->en_nic_cfg.enc_pf;
395 tag = TLV_TAG_PF_DYNAMIC_VPD(pci_pf);
398 /* Determine total length of new dynamic VPD */
399 if ((rc = efx_vpd_hunk_length(data, size, &vpd_length)) != 0)
402 /* Store new dynamic VPD in all segments in DYNAMIC_CONFIG partition */
403 if ((rc = ef10_nvram_partn_write_segment_tlv(enp,
404 NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG,
405 tag, data, vpd_length, B_TRUE)) != 0) {
415 EFSYS_PROBE1(fail1, efx_rc_t, rc);
424 EFSYS_ASSERT(EFX_FAMILY_IS_EF10(enp));
426 if (enp->en_arch.ef10.ena_svpd_length > 0) {
427 EFSYS_KMEM_FREE(enp->en_esip, enp->en_arch.ef10.ena_svpd_length,
428 enp->en_arch.ef10.ena_svpd);
430 enp->en_arch.ef10.ena_svpd = NULL;
431 enp->en_arch.ef10.ena_svpd_length = 0;
435 #endif /* EFX_OPTS_EF10() */
437 #endif /* EFSYS_OPT_VPD */