--- /dev/null
+/*
+ * Copyright (c) 2009-2016 Solarflare Communications Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * The views and conclusions contained in the software and documentation are
+ * those of the authors and should not be interpreted as representing official
+ * policies, either expressed or implied, of the FreeBSD Project.
+ */
+
+#include "efx.h"
+#include "efx_impl.h"
+
+#if EFSYS_OPT_VPD
+
+#if EFSYS_OPT_SIENA
+
+static __checkReturn efx_rc_t
+siena_vpd_get_static(
+ __in efx_nic_t *enp,
+ __in uint32_t partn,
+ __deref_out_bcount_opt(*sizep) caddr_t *svpdp,
+ __out size_t *sizep)
+{
+ siena_mc_static_config_hdr_t *scfg;
+ caddr_t svpd;
+ size_t size;
+ uint8_t cksum;
+ unsigned int vpd_offset;
+ unsigned int vpd_length;
+ unsigned int hdr_length;
+ unsigned int pos;
+ unsigned int region;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(partn == MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0 ||
+ partn == MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1);
+
+ /* Allocate sufficient memory for the entire static cfg area */
+ if ((rc = siena_nvram_partn_size(enp, partn, &size)) != 0)
+ goto fail1;
+
+ EFSYS_KMEM_ALLOC(enp->en_esip, size, scfg);
+ if (scfg == NULL) {
+ rc = ENOMEM;
+ goto fail2;
+ }
+
+ if ((rc = siena_nvram_partn_read(enp, partn, 0,
+ (caddr_t)scfg, SIENA_NVRAM_CHUNK)) != 0)
+ goto fail3;
+
+ /* Verify the magic number */
+ if (EFX_DWORD_FIELD(scfg->magic, EFX_DWORD_0) !=
+ SIENA_MC_STATIC_CONFIG_MAGIC) {
+ rc = EINVAL;
+ goto fail4;
+ }
+
+ /* All future versions of the structure must be backwards compatible */
+ EFX_STATIC_ASSERT(SIENA_MC_STATIC_CONFIG_VERSION == 0);
+
+ hdr_length = EFX_WORD_FIELD(scfg->length, EFX_WORD_0);
+ vpd_offset = EFX_DWORD_FIELD(scfg->static_vpd_offset, EFX_DWORD_0);
+ vpd_length = EFX_DWORD_FIELD(scfg->static_vpd_length, EFX_DWORD_0);
+
+ /* Verify the hdr doesn't overflow the sector size */
+ if (hdr_length > size || vpd_offset > size || vpd_length > size ||
+ vpd_length + vpd_offset > size) {
+ rc = EINVAL;
+ goto fail5;
+ }
+
+ /* Read the remainder of scfg + static vpd */
+ region = vpd_offset + vpd_length;
+ if (region > SIENA_NVRAM_CHUNK) {
+ if ((rc = siena_nvram_partn_read(enp, partn, SIENA_NVRAM_CHUNK,
+ (caddr_t)scfg + SIENA_NVRAM_CHUNK,
+ region - SIENA_NVRAM_CHUNK)) != 0)
+ goto fail6;
+ }
+
+ /* Verify checksum */
+ cksum = 0;
+ for (pos = 0; pos < hdr_length; pos++)
+ cksum += ((uint8_t *)scfg)[pos];
+ if (cksum != 0) {
+ rc = EINVAL;
+ goto fail7;
+ }
+
+ if (vpd_length == 0)
+ svpd = NULL;
+ else {
+ /* Copy the vpd data out */
+ EFSYS_KMEM_ALLOC(enp->en_esip, vpd_length, svpd);
+ if (svpd == NULL) {
+ rc = ENOMEM;
+ goto fail8;
+ }
+ memcpy(svpd, (caddr_t)scfg + vpd_offset, vpd_length);
+ }
+
+ EFSYS_KMEM_FREE(enp->en_esip, size, scfg);
+
+ *svpdp = svpd;
+ *sizep = vpd_length;
+
+ return (0);
+
+fail8:
+ EFSYS_PROBE(fail8);
+fail7:
+ EFSYS_PROBE(fail7);
+fail6:
+ EFSYS_PROBE(fail6);
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+
+ EFSYS_KMEM_FREE(enp->en_esip, size, scfg);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+siena_vpd_init(
+ __in efx_nic_t *enp)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ caddr_t svpd = NULL;
+ unsigned int partn;
+ size_t size = 0;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ partn = (emip->emi_port == 1)
+ ? MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT0
+ : MC_CMD_NVRAM_TYPE_STATIC_CFG_PORT1;
+
+ /*
+ * We need the static VPD sector to present a unified static+dynamic
+ * VPD, that is, basically on every read, write, verify cycle. Since
+ * it should *never* change we can just cache it here.
+ */
+ if ((rc = siena_vpd_get_static(enp, partn, &svpd, &size)) != 0)
+ goto fail1;
+
+ if (svpd != NULL && size > 0) {
+ if ((rc = efx_vpd_hunk_verify(svpd, size, NULL)) != 0)
+ goto fail2;
+ }
+
+ enp->en_u.siena.enu_svpd = svpd;
+ enp->en_u.siena.enu_svpd_length = size;
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+
+ EFSYS_KMEM_FREE(enp->en_esip, size, svpd);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+siena_vpd_size(
+ __in efx_nic_t *enp,
+ __out size_t *sizep)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ uint32_t partn;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ /*
+ * 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.
+ * Since the dynamic_config structure can change under our feet,
+ * (as version numbers are inserted), just be safe and return the
+ * total size of the dynamic_config *sector*
+ */
+ partn = (emip->emi_port == 1)
+ ? MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0
+ : MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1;
+
+ if ((rc = siena_nvram_partn_size(enp, partn, sizep)) != 0)
+ goto fail1;
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+siena_vpd_read(
+ __in efx_nic_t *enp,
+ __out_bcount(size) caddr_t data,
+ __in size_t size)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ siena_mc_dynamic_config_hdr_t *dcfg = NULL;
+ unsigned int vpd_length;
+ unsigned int vpd_offset;
+ unsigned int dcfg_partn;
+ size_t dcfg_size;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ dcfg_partn = (emip->emi_port == 1)
+ ? MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0
+ : MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1;
+
+ if ((rc = siena_nvram_get_dynamic_cfg(enp, dcfg_partn,
+ B_TRUE, &dcfg, &dcfg_size)) != 0)
+ goto fail1;
+
+ vpd_length = EFX_DWORD_FIELD(dcfg->dynamic_vpd_length, EFX_DWORD_0);
+ vpd_offset = EFX_DWORD_FIELD(dcfg->dynamic_vpd_offset, EFX_DWORD_0);
+
+ if (vpd_length > size) {
+ rc = EFAULT; /* Invalid dcfg: header bigger than sector */
+ goto fail2;
+ }
+
+ EFSYS_ASSERT3U(vpd_length, <=, size);
+ memcpy(data, (caddr_t)dcfg + vpd_offset, vpd_length);
+
+ /* Pad data with all-1s, consistent with update operations */
+ memset(data + vpd_length, 0xff, size - vpd_length);
+
+ EFSYS_KMEM_FREE(enp->en_esip, dcfg_size, dcfg);
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+
+ EFSYS_KMEM_FREE(enp->en_esip, dcfg_size, dcfg);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ __checkReturn efx_rc_t
+siena_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_SIENA);
+
+ /*
+ * 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. siena_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_u.siena.enu_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_u.siena.enu_svpd,
+ enp->en_u.siena.enu_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
+siena_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 a PID if the dynamic cfg doesn't have one
+ */
+ if (enp->en_u.siena.enu_svpd_length == 0)
+ wantpid = B_TRUE;
+ else {
+ unsigned int offset;
+ uint8_t length;
+
+ rc = efx_vpd_hunk_get(enp->en_u.siena.enu_svpd,
+ enp->en_u.siena.enu_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
+siena_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_SIENA);
+
+ /* Attempt to satisfy the request from svpd first */
+ if (enp->en_u.siena.enu_svpd_length > 0) {
+ if ((rc = efx_vpd_hunk_get(enp->en_u.siena.enu_svpd,
+ enp->en_u.siena.enu_svpd_length, evvp->evv_tag,
+ evvp->evv_keyword, &offset, &length)) == 0) {
+ evvp->evv_length = length;
+ memcpy(evvp->evv_value,
+ enp->en_u.siena.enu_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
+siena_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_SIENA);
+
+ /* If the provided (tag,keyword) exists in svpd, then it is readonly */
+ if (enp->en_u.siena.enu_svpd_length > 0) {
+ unsigned int offset;
+ uint8_t length;
+
+ if ((rc = efx_vpd_hunk_get(enp->en_u.siena.enu_svpd,
+ enp->en_u.siena.enu_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
+siena_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
+siena_vpd_write(
+ __in efx_nic_t *enp,
+ __in_bcount(size) caddr_t data,
+ __in size_t size)
+{
+ efx_mcdi_iface_t *emip = &(enp->en_mcdi.em_emip);
+ siena_mc_dynamic_config_hdr_t *dcfg = NULL;
+ unsigned int vpd_offset;
+ unsigned int dcfg_partn;
+ unsigned int hdr_length;
+ unsigned int pos;
+ uint8_t cksum;
+ size_t partn_size, dcfg_size;
+ size_t vpd_length;
+ efx_rc_t rc;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ /* Determine total length of all tags */
+ if ((rc = efx_vpd_hunk_length(data, size, &vpd_length)) != 0)
+ goto fail1;
+
+ /* Lock dynamic config sector for write, and read structure only */
+ dcfg_partn = (emip->emi_port == 1)
+ ? MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT0
+ : MC_CMD_NVRAM_TYPE_DYNAMIC_CFG_PORT1;
+
+ if ((rc = siena_nvram_partn_size(enp, dcfg_partn, &partn_size)) != 0)
+ goto fail2;
+
+ if ((rc = siena_nvram_partn_lock(enp, dcfg_partn)) != 0)
+ goto fail3;
+
+ if ((rc = siena_nvram_get_dynamic_cfg(enp, dcfg_partn,
+ B_FALSE, &dcfg, &dcfg_size)) != 0)
+ goto fail4;
+
+ hdr_length = EFX_WORD_FIELD(dcfg->length, EFX_WORD_0);
+
+ /* Allocated memory should have room for the new VPD */
+ if (hdr_length + vpd_length > dcfg_size) {
+ rc = ENOSPC;
+ goto fail5;
+ }
+
+ /* Copy in new vpd and update header */
+ vpd_offset = dcfg_size - vpd_length;
+ EFX_POPULATE_DWORD_1(dcfg->dynamic_vpd_offset, EFX_DWORD_0, vpd_offset);
+ memcpy((caddr_t)dcfg + vpd_offset, data, vpd_length);
+ EFX_POPULATE_DWORD_1(dcfg->dynamic_vpd_length, EFX_DWORD_0, vpd_length);
+
+ /* Update the checksum */
+ cksum = 0;
+ for (pos = 0; pos < hdr_length; pos++)
+ cksum += ((uint8_t *)dcfg)[pos];
+ dcfg->csum.eb_u8[0] -= cksum;
+
+ /* Erase and write the new sector */
+ if ((rc = siena_nvram_partn_erase(enp, dcfg_partn, 0, partn_size)) != 0)
+ goto fail6;
+
+ /* Write out the new structure to nvram */
+ if ((rc = siena_nvram_partn_write(enp, dcfg_partn, 0, (caddr_t)dcfg,
+ vpd_offset + vpd_length)) != 0)
+ goto fail7;
+
+ EFSYS_KMEM_FREE(enp->en_esip, dcfg_size, dcfg);
+
+ siena_nvram_partn_unlock(enp, dcfg_partn);
+
+ return (0);
+
+fail7:
+ EFSYS_PROBE(fail7);
+fail6:
+ EFSYS_PROBE(fail6);
+fail5:
+ EFSYS_PROBE(fail5);
+
+ EFSYS_KMEM_FREE(enp->en_esip, dcfg_size, dcfg);
+fail4:
+ EFSYS_PROBE(fail4);
+
+ siena_nvram_partn_unlock(enp, dcfg_partn);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+siena_vpd_fini(
+ __in efx_nic_t *enp)
+{
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_SIENA);
+
+ if (enp->en_u.siena.enu_svpd_length > 0) {
+ EFSYS_KMEM_FREE(enp->en_esip, enp->en_u.siena.enu_svpd_length,
+ enp->en_u.siena.enu_svpd);
+
+ enp->en_u.siena.enu_svpd = NULL;
+ enp->en_u.siena.enu_svpd_length = 0;
+ }
+}
+
+#endif /* EFSYS_OPT_SIENA */
+
+#endif /* EFSYS_OPT_VPD */
Code Review / deb_dpdk.git / blobdiff