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|
/* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (c) 2009-2018 Solarflare Communications Inc.
* All rights reserved.
*/
#include "efx.h"
#include "efx_impl.h"
#if EFSYS_OPT_VPD
#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
#include "ef10_tlv_layout.h"
__checkReturn efx_rc_t
ef10_vpd_init(
__in efx_nic_t *enp)
{
caddr_t svpd;
size_t svpd_size;
uint32_t pci_pf;
uint32_t tag;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
if (enp->en_nic_cfg.enc_vpd_is_global) {
tag = TLV_TAG_GLOBAL_STATIC_VPD;
} else {
pci_pf = enp->en_nic_cfg.enc_pf;
tag = TLV_TAG_PF_STATIC_VPD(pci_pf);
}
/*
* The VPD interface exposes VPD resources from the combined static and
* dynamic VPD storage. As the static VPD configuration should *never*
* change, we can cache it.
*/
svpd = NULL;
svpd_size = 0;
rc = ef10_nvram_partn_read_tlv(enp,
NVRAM_PARTITION_TYPE_STATIC_CONFIG,
tag, &svpd, &svpd_size);
if (rc != 0) {
if (rc == EACCES) {
/* Unprivileged functions cannot access VPD */
goto out;
}
goto fail1;
}
if (svpd != NULL && svpd_size > 0) {
if ((rc = efx_vpd_hunk_verify(svpd, svpd_size, NULL)) != 0)
goto fail2;
}
enp->en_arch.ef10.ena_svpd = svpd;
enp->en_arch.ef10.ena_svpd_length = svpd_size;
out:
return (0);
fail2:
EFSYS_PROBE(fail2);
EFSYS_KMEM_FREE(enp->en_esip, svpd_size, svpd);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_size(
__in efx_nic_t *enp,
__out size_t *sizep)
{
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
/*
* This function returns the total size the user should allocate
* for all VPD operations. We've already cached the static vpd,
* so we just need to return an upper bound on the dynamic vpd,
* which is the size of the DYNAMIC_CONFIG partition.
*/
if ((rc = efx_mcdi_nvram_info(enp, NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG,
sizep, NULL, NULL, NULL)) != 0)
goto fail1;
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_read(
__in efx_nic_t *enp,
__out_bcount(size) caddr_t data,
__in size_t size)
{
caddr_t dvpd;
size_t dvpd_size;
uint32_t pci_pf;
uint32_t tag;
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
if (enp->en_nic_cfg.enc_vpd_is_global) {
tag = TLV_TAG_GLOBAL_DYNAMIC_VPD;
} else {
pci_pf = enp->en_nic_cfg.enc_pf;
tag = TLV_TAG_PF_DYNAMIC_VPD(pci_pf);
}
if ((rc = ef10_nvram_partn_read_tlv(enp,
NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG,
tag, &dvpd, &dvpd_size)) != 0)
goto fail1;
if (dvpd_size > size) {
rc = ENOSPC;
goto fail2;
}
memcpy(data, dvpd, dvpd_size);
/* Pad data with all-1s, consistent with update operations */
memset(data + dvpd_size, 0xff, size - dvpd_size);
EFSYS_KMEM_FREE(enp->en_esip, dvpd_size, dvpd);
return (0);
fail2:
EFSYS_PROBE(fail2);
EFSYS_KMEM_FREE(enp->en_esip, dvpd_size, dvpd);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_verify(
__in efx_nic_t *enp,
__in_bcount(size) caddr_t data,
__in size_t size)
{
efx_vpd_tag_t stag;
efx_vpd_tag_t dtag;
efx_vpd_keyword_t skey;
efx_vpd_keyword_t dkey;
unsigned int scont;
unsigned int dcont;
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
/*
* Strictly you could take the view that dynamic vpd is optional.
* Instead, to conform more closely to the read/verify/reinit()
* paradigm, we require dynamic vpd. ef10_vpd_reinit() will
* reinitialize it as required.
*/
if ((rc = efx_vpd_hunk_verify(data, size, NULL)) != 0)
goto fail1;
/*
* Verify that there is no duplication between the static and
* dynamic cfg sectors.
*/
if (enp->en_arch.ef10.ena_svpd_length == 0)
goto done;
dcont = 0;
_NOTE(CONSTANTCONDITION)
while (1) {
if ((rc = efx_vpd_hunk_next(data, size, &dtag,
&dkey, NULL, NULL, &dcont)) != 0)
goto fail2;
if (dcont == 0)
break;
/*
* Skip the RV keyword. It should be present in both the static
* and dynamic cfg sectors.
*/
if (dtag == EFX_VPD_RO && dkey == EFX_VPD_KEYWORD('R', 'V'))
continue;
scont = 0;
_NOTE(CONSTANTCONDITION)
while (1) {
if ((rc = efx_vpd_hunk_next(
enp->en_arch.ef10.ena_svpd,
enp->en_arch.ef10.ena_svpd_length, &stag, &skey,
NULL, NULL, &scont)) != 0)
goto fail3;
if (scont == 0)
break;
if (stag == dtag && skey == dkey) {
rc = EEXIST;
goto fail4;
}
}
}
done:
return (0);
fail4:
EFSYS_PROBE(fail4);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_reinit(
__in efx_nic_t *enp,
__in_bcount(size) caddr_t data,
__in size_t size)
{
boolean_t wantpid;
efx_rc_t rc;
/*
* Only create an ID string if the dynamic cfg doesn't have one
*/
if (enp->en_arch.ef10.ena_svpd_length == 0)
wantpid = B_TRUE;
else {
unsigned int offset;
uint8_t length;
rc = efx_vpd_hunk_get(enp->en_arch.ef10.ena_svpd,
enp->en_arch.ef10.ena_svpd_length,
EFX_VPD_ID, 0, &offset, &length);
if (rc == 0)
wantpid = B_FALSE;
else if (rc == ENOENT)
wantpid = B_TRUE;
else
goto fail1;
}
if ((rc = efx_vpd_hunk_reinit(data, size, wantpid)) != 0)
goto fail2;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_get(
__in efx_nic_t *enp,
__in_bcount(size) caddr_t data,
__in size_t size,
__inout efx_vpd_value_t *evvp)
{
unsigned int offset;
uint8_t length;
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
/* Attempt to satisfy the request from svpd first */
if (enp->en_arch.ef10.ena_svpd_length > 0) {
if ((rc = efx_vpd_hunk_get(enp->en_arch.ef10.ena_svpd,
enp->en_arch.ef10.ena_svpd_length, evvp->evv_tag,
evvp->evv_keyword, &offset, &length)) == 0) {
evvp->evv_length = length;
memcpy(evvp->evv_value,
enp->en_arch.ef10.ena_svpd + offset, length);
return (0);
} else if (rc != ENOENT)
goto fail1;
}
/* And then from the provided data buffer */
if ((rc = efx_vpd_hunk_get(data, size, evvp->evv_tag,
evvp->evv_keyword, &offset, &length)) != 0) {
if (rc == ENOENT)
return (rc);
goto fail2;
}
evvp->evv_length = length;
memcpy(evvp->evv_value, data + offset, length);
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_set(
__in efx_nic_t *enp,
__in_bcount(size) caddr_t data,
__in size_t size,
__in efx_vpd_value_t *evvp)
{
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
/* If the provided (tag,keyword) exists in svpd, then it is readonly */
if (enp->en_arch.ef10.ena_svpd_length > 0) {
unsigned int offset;
uint8_t length;
if ((rc = efx_vpd_hunk_get(enp->en_arch.ef10.ena_svpd,
enp->en_arch.ef10.ena_svpd_length, evvp->evv_tag,
evvp->evv_keyword, &offset, &length)) == 0) {
rc = EACCES;
goto fail1;
}
}
if ((rc = efx_vpd_hunk_set(data, size, evvp)) != 0)
goto fail2;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_vpd_next(
__in efx_nic_t *enp,
__in_bcount(size) caddr_t data,
__in size_t size,
__out efx_vpd_value_t *evvp,
__inout unsigned int *contp)
{
_NOTE(ARGUNUSED(enp, data, size, evvp, contp))
return (ENOTSUP);
}
__checkReturn efx_rc_t
ef10_vpd_write(
__in efx_nic_t *enp,
__in_bcount(size) caddr_t data,
__in size_t size)
{
size_t vpd_length;
uint32_t pci_pf;
uint32_t tag;
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
if (enp->en_nic_cfg.enc_vpd_is_global) {
tag = TLV_TAG_GLOBAL_DYNAMIC_VPD;
} else {
pci_pf = enp->en_nic_cfg.enc_pf;
tag = TLV_TAG_PF_DYNAMIC_VPD(pci_pf);
}
/* Determine total length of new dynamic VPD */
if ((rc = efx_vpd_hunk_length(data, size, &vpd_length)) != 0)
goto fail1;
/* Store new dynamic VPD in all segments in DYNAMIC_CONFIG partition */
if ((rc = ef10_nvram_partn_write_segment_tlv(enp,
NVRAM_PARTITION_TYPE_DYNAMIC_CONFIG,
tag, data, vpd_length, B_TRUE)) != 0) {
goto fail2;
}
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
void
ef10_vpd_fini(
__in efx_nic_t *enp)
{
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
if (enp->en_arch.ef10.ena_svpd_length > 0) {
EFSYS_KMEM_FREE(enp->en_esip, enp->en_arch.ef10.ena_svpd_length,
enp->en_arch.ef10.ena_svpd);
enp->en_arch.ef10.ena_svpd = NULL;
enp->en_arch.ef10.ena_svpd_length = 0;
}
}
#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
#endif /* EFSYS_OPT_VPD */
|
