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freebsd-skq/sys/dev/sfxge/common/efx_nic.c
Andrew Rybchenko 7367e67956 sfxge(4): remove obsolete Wake-On-LAN support 
Wake-on-lan is not supported in production on any of our adapters, as
they don't have the required AUX power connector. (It's possible that
AUX power is supplied to some of our ALOM or mezz adapters, but if so
then we've never implemented or tested WoL support.)

Reviewed by:    gnn
Sponsored by:   Solarflare Communications, Inc.
MFC after:      1 week
Differential Revision:  https://reviews.freebsd.org/D8972
2016-12-30 12:06:55 +00:00

1064 lines
27 KiB
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/*-
* Copyright (c) 2007-2016 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 <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "efx.h"
#include "efx_impl.h"
__checkReturn efx_rc_t
efx_family(
__in uint16_t venid,
__in uint16_t devid,
__out efx_family_t *efp)
{
if (venid == EFX_PCI_VENID_SFC) {
switch (devid) {
#if EFSYS_OPT_SIENA
case EFX_PCI_DEVID_SIENA_F1_UNINIT:
/*
* Hardware default for PF0 of uninitialised Siena.
* manftest must be able to cope with this device id.
*/
*efp = EFX_FAMILY_SIENA;
return (0);
case EFX_PCI_DEVID_BETHPAGE:
case EFX_PCI_DEVID_SIENA:
*efp = EFX_FAMILY_SIENA;
return (0);
#endif /* EFSYS_OPT_SIENA */
#if EFSYS_OPT_HUNTINGTON
case EFX_PCI_DEVID_HUNTINGTON_PF_UNINIT:
/*
* Hardware default for PF0 of uninitialised Huntington.
* manftest must be able to cope with this device id.
*/
*efp = EFX_FAMILY_HUNTINGTON;
return (0);
case EFX_PCI_DEVID_FARMINGDALE:
case EFX_PCI_DEVID_GREENPORT:
*efp = EFX_FAMILY_HUNTINGTON;
return (0);
case EFX_PCI_DEVID_FARMINGDALE_VF:
case EFX_PCI_DEVID_GREENPORT_VF:
*efp = EFX_FAMILY_HUNTINGTON;
return (0);
#endif /* EFSYS_OPT_HUNTINGTON */
#if EFSYS_OPT_MEDFORD
case EFX_PCI_DEVID_MEDFORD_PF_UNINIT:
/*
* Hardware default for PF0 of uninitialised Medford.
* manftest must be able to cope with this device id.
*/
*efp = EFX_FAMILY_MEDFORD;
return (0);
case EFX_PCI_DEVID_MEDFORD:
*efp = EFX_FAMILY_MEDFORD;
return (0);
case EFX_PCI_DEVID_MEDFORD_VF:
*efp = EFX_FAMILY_MEDFORD;
return (0);
#endif /* EFSYS_OPT_MEDFORD */
case EFX_PCI_DEVID_FALCON: /* Obsolete, not supported */
default:
break;
}
}
*efp = EFX_FAMILY_INVALID;
return (ENOTSUP);
}
#define EFX_BIU_MAGIC0 0x01234567
#define EFX_BIU_MAGIC1 0xfedcba98
__checkReturn efx_rc_t
efx_nic_biu_test(
__in efx_nic_t *enp)
{
efx_oword_t oword;
efx_rc_t rc;
/*
* Write magic values to scratch registers 0 and 1, then
* verify that the values were written correctly. Interleave
* the accesses to ensure that the BIU is not just reading
* back the cached value that was last written.
*/
EFX_POPULATE_OWORD_1(oword, FRF_AZ_DRIVER_DW0, EFX_BIU_MAGIC0);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_DRIVER_REG, 0, &oword, B_TRUE);
EFX_POPULATE_OWORD_1(oword, FRF_AZ_DRIVER_DW0, EFX_BIU_MAGIC1);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_DRIVER_REG, 1, &oword, B_TRUE);
EFX_BAR_TBL_READO(enp, FR_AZ_DRIVER_REG, 0, &oword, B_TRUE);
if (EFX_OWORD_FIELD(oword, FRF_AZ_DRIVER_DW0) != EFX_BIU_MAGIC0) {
rc = EIO;
goto fail1;
}
EFX_BAR_TBL_READO(enp, FR_AZ_DRIVER_REG, 1, &oword, B_TRUE);
if (EFX_OWORD_FIELD(oword, FRF_AZ_DRIVER_DW0) != EFX_BIU_MAGIC1) {
rc = EIO;
goto fail2;
}
/*
* Perform the same test, with the values swapped. This
* ensures that subsequent tests don't start with the correct
* values already written into the scratch registers.
*/
EFX_POPULATE_OWORD_1(oword, FRF_AZ_DRIVER_DW0, EFX_BIU_MAGIC1);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_DRIVER_REG, 0, &oword, B_TRUE);
EFX_POPULATE_OWORD_1(oword, FRF_AZ_DRIVER_DW0, EFX_BIU_MAGIC0);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_DRIVER_REG, 1, &oword, B_TRUE);
EFX_BAR_TBL_READO(enp, FR_AZ_DRIVER_REG, 0, &oword, B_TRUE);
if (EFX_OWORD_FIELD(oword, FRF_AZ_DRIVER_DW0) != EFX_BIU_MAGIC1) {
rc = EIO;
goto fail3;
}
EFX_BAR_TBL_READO(enp, FR_AZ_DRIVER_REG, 1, &oword, B_TRUE);
if (EFX_OWORD_FIELD(oword, FRF_AZ_DRIVER_DW0) != EFX_BIU_MAGIC0) {
rc = EIO;
goto fail4;
}
return (0);
fail4:
EFSYS_PROBE(fail4);
fail3:
EFSYS_PROBE(fail3);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
#if EFSYS_OPT_SIENA
static const efx_nic_ops_t __efx_nic_siena_ops = {
siena_nic_probe, /* eno_probe */
NULL, /* eno_board_cfg */
NULL, /* eno_set_drv_limits */
siena_nic_reset, /* eno_reset */
siena_nic_init, /* eno_init */
NULL, /* eno_get_vi_pool */
NULL, /* eno_get_bar_region */
#if EFSYS_OPT_DIAG
siena_nic_register_test, /* eno_register_test */
#endif /* EFSYS_OPT_DIAG */
siena_nic_fini, /* eno_fini */
siena_nic_unprobe, /* eno_unprobe */
};
#endif /* EFSYS_OPT_SIENA */
#if EFSYS_OPT_HUNTINGTON
static const efx_nic_ops_t __efx_nic_hunt_ops = {
ef10_nic_probe, /* eno_probe */
hunt_board_cfg, /* eno_board_cfg */
ef10_nic_set_drv_limits, /* eno_set_drv_limits */
ef10_nic_reset, /* eno_reset */
ef10_nic_init, /* eno_init */
ef10_nic_get_vi_pool, /* eno_get_vi_pool */
ef10_nic_get_bar_region, /* eno_get_bar_region */
#if EFSYS_OPT_DIAG
ef10_nic_register_test, /* eno_register_test */
#endif /* EFSYS_OPT_DIAG */
ef10_nic_fini, /* eno_fini */
ef10_nic_unprobe, /* eno_unprobe */
};
#endif /* EFSYS_OPT_HUNTINGTON */
#if EFSYS_OPT_MEDFORD
static const efx_nic_ops_t __efx_nic_medford_ops = {
ef10_nic_probe, /* eno_probe */
medford_board_cfg, /* eno_board_cfg */
ef10_nic_set_drv_limits, /* eno_set_drv_limits */
ef10_nic_reset, /* eno_reset */
ef10_nic_init, /* eno_init */
ef10_nic_get_vi_pool, /* eno_get_vi_pool */
ef10_nic_get_bar_region, /* eno_get_bar_region */
#if EFSYS_OPT_DIAG
ef10_nic_register_test, /* eno_register_test */
#endif /* EFSYS_OPT_DIAG */
ef10_nic_fini, /* eno_fini */
ef10_nic_unprobe, /* eno_unprobe */
};
#endif /* EFSYS_OPT_MEDFORD */
__checkReturn efx_rc_t
efx_nic_create(
__in efx_family_t family,
__in efsys_identifier_t *esip,
__in efsys_bar_t *esbp,
__in efsys_lock_t *eslp,
__deref_out efx_nic_t **enpp)
{
efx_nic_t *enp;
efx_rc_t rc;
EFSYS_ASSERT3U(family, >, EFX_FAMILY_INVALID);
EFSYS_ASSERT3U(family, <, EFX_FAMILY_NTYPES);
/* Allocate a NIC object */
EFSYS_KMEM_ALLOC(esip, sizeof (efx_nic_t), enp);
if (enp == NULL) {
rc = ENOMEM;
goto fail1;
}
enp->en_magic = EFX_NIC_MAGIC;
switch (family) {
#if EFSYS_OPT_SIENA
case EFX_FAMILY_SIENA:
enp->en_enop = &__efx_nic_siena_ops;
enp->en_features =
EFX_FEATURE_IPV6 |
EFX_FEATURE_LFSR_HASH_INSERT |
EFX_FEATURE_LINK_EVENTS |
EFX_FEATURE_PERIODIC_MAC_STATS |
EFX_FEATURE_MCDI |
EFX_FEATURE_LOOKAHEAD_SPLIT |
EFX_FEATURE_MAC_HEADER_FILTERS |
EFX_FEATURE_TX_SRC_FILTERS;
break;
#endif /* EFSYS_OPT_SIENA */
#if EFSYS_OPT_HUNTINGTON
case EFX_FAMILY_HUNTINGTON:
enp->en_enop = &__efx_nic_hunt_ops;
enp->en_features =
EFX_FEATURE_IPV6 |
EFX_FEATURE_LINK_EVENTS |
EFX_FEATURE_PERIODIC_MAC_STATS |
EFX_FEATURE_MCDI |
EFX_FEATURE_MAC_HEADER_FILTERS |
EFX_FEATURE_MCDI_DMA |
EFX_FEATURE_PIO_BUFFERS |
EFX_FEATURE_FW_ASSISTED_TSO |
EFX_FEATURE_FW_ASSISTED_TSO_V2;
break;
#endif /* EFSYS_OPT_HUNTINGTON */
#if EFSYS_OPT_MEDFORD
case EFX_FAMILY_MEDFORD:
enp->en_enop = &__efx_nic_medford_ops;
/*
* FW_ASSISTED_TSO omitted as Medford only supports firmware
* assisted TSO version 2, not the v1 scheme used on Huntington.
*/
enp->en_features =
EFX_FEATURE_IPV6 |
EFX_FEATURE_LINK_EVENTS |
EFX_FEATURE_PERIODIC_MAC_STATS |
EFX_FEATURE_MCDI |
EFX_FEATURE_MAC_HEADER_FILTERS |
EFX_FEATURE_MCDI_DMA |
EFX_FEATURE_PIO_BUFFERS |
EFX_FEATURE_FW_ASSISTED_TSO_V2;
break;
#endif /* EFSYS_OPT_MEDFORD */
default:
rc = ENOTSUP;
goto fail2;
}
enp->en_family = family;
enp->en_esip = esip;
enp->en_esbp = esbp;
enp->en_eslp = eslp;
*enpp = enp;
return (0);
fail2:
EFSYS_PROBE(fail2);
enp->en_magic = 0;
/* Free the NIC object */
EFSYS_KMEM_FREE(esip, sizeof (efx_nic_t), enp);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_probe(
__in efx_nic_t *enp)
{
const efx_nic_ops_t *enop;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
#if EFSYS_OPT_MCDI
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
#endif /* EFSYS_OPT_MCDI */
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_PROBE));
enop = enp->en_enop;
if ((rc = enop->eno_probe(enp)) != 0)
goto fail1;
if ((rc = efx_phy_probe(enp)) != 0)
goto fail2;
enp->en_mod_flags |= EFX_MOD_PROBE;
return (0);
fail2:
EFSYS_PROBE(fail2);
enop->eno_unprobe(enp);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_set_drv_limits(
__inout efx_nic_t *enp,
__in efx_drv_limits_t *edlp)
{
const efx_nic_ops_t *enop = enp->en_enop;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
if (enop->eno_set_drv_limits != NULL) {
if ((rc = enop->eno_set_drv_limits(enp, edlp)) != 0)
goto fail1;
}
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_get_bar_region(
__in efx_nic_t *enp,
__in efx_nic_region_t region,
__out uint32_t *offsetp,
__out size_t *sizep)
{
const efx_nic_ops_t *enop = enp->en_enop;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
if (enop->eno_get_bar_region == NULL) {
rc = ENOTSUP;
goto fail1;
}
if ((rc = (enop->eno_get_bar_region)(enp,
region, offsetp, sizep)) != 0) {
goto fail2;
}
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_get_vi_pool(
__in efx_nic_t *enp,
__out uint32_t *evq_countp,
__out uint32_t *rxq_countp,
__out uint32_t *txq_countp)
{
const efx_nic_ops_t *enop = enp->en_enop;
efx_nic_cfg_t *encp = &enp->en_nic_cfg;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
if (enop->eno_get_vi_pool != NULL) {
uint32_t vi_count = 0;
if ((rc = (enop->eno_get_vi_pool)(enp, &vi_count)) != 0)
goto fail1;
*evq_countp = vi_count;
*rxq_countp = vi_count;
*txq_countp = vi_count;
} else {
/* Use NIC limits as default value */
*evq_countp = encp->enc_evq_limit;
*rxq_countp = encp->enc_rxq_limit;
*txq_countp = encp->enc_txq_limit;
}
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_init(
__in efx_nic_t *enp)
{
const efx_nic_ops_t *enop = enp->en_enop;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
if (enp->en_mod_flags & EFX_MOD_NIC) {
rc = EINVAL;
goto fail1;
}
if ((rc = enop->eno_init(enp)) != 0)
goto fail2;
enp->en_mod_flags |= EFX_MOD_NIC;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
void
efx_nic_fini(
__in efx_nic_t *enp)
{
const efx_nic_ops_t *enop = enp->en_enop;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT(enp->en_mod_flags & EFX_MOD_PROBE);
EFSYS_ASSERT(enp->en_mod_flags & EFX_MOD_NIC);
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_INTR));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_EV));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_RX));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_TX));
enop->eno_fini(enp);
enp->en_mod_flags &= ~EFX_MOD_NIC;
}
void
efx_nic_unprobe(
__in efx_nic_t *enp)
{
const efx_nic_ops_t *enop = enp->en_enop;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
#if EFSYS_OPT_MCDI
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_MCDI);
#endif /* EFSYS_OPT_MCDI */
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_NIC));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_INTR));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_EV));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_RX));
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_TX));
efx_phy_unprobe(enp);
enop->eno_unprobe(enp);
enp->en_mod_flags &= ~EFX_MOD_PROBE;
}
void
efx_nic_destroy(
__in efx_nic_t *enp)
{
efsys_identifier_t *esip = enp->en_esip;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, ==, 0);
enp->en_family = EFX_FAMILY_INVALID;
enp->en_esip = NULL;
enp->en_esbp = NULL;
enp->en_eslp = NULL;
enp->en_enop = NULL;
enp->en_magic = 0;
/* Free the NIC object */
EFSYS_KMEM_FREE(esip, sizeof (efx_nic_t), enp);
}
__checkReturn efx_rc_t
efx_nic_reset(
__in efx_nic_t *enp)
{
const efx_nic_ops_t *enop = enp->en_enop;
unsigned int mod_flags;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT(enp->en_mod_flags & EFX_MOD_PROBE);
/*
* All modules except the MCDI, PROBE, NVRAM, VPD, MON
* (which we do not reset here) must have been shut down or never
* initialized.
*
* A rule of thumb here is: If the controller or MC reboots, is *any*
* state lost. If it's lost and needs reapplying, then the module
* *must* not be initialised during the reset.
*/
mod_flags = enp->en_mod_flags;
mod_flags &= ~(EFX_MOD_MCDI | EFX_MOD_PROBE | EFX_MOD_NVRAM |
EFX_MOD_VPD | EFX_MOD_MON);
EFSYS_ASSERT3U(mod_flags, ==, 0);
if (mod_flags != 0) {
rc = EINVAL;
goto fail1;
}
if ((rc = enop->eno_reset(enp)) != 0)
goto fail2;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
const efx_nic_cfg_t *
efx_nic_cfg_get(
__in efx_nic_t *enp)
{
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
return (&(enp->en_nic_cfg));
}
#if EFSYS_OPT_DIAG
__checkReturn efx_rc_t
efx_nic_register_test(
__in efx_nic_t *enp)
{
const efx_nic_ops_t *enop = enp->en_enop;
efx_rc_t rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_PROBE);
EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_NIC));
if ((rc = enop->eno_register_test(enp)) != 0)
goto fail1;
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_test_registers(
__in efx_nic_t *enp,
__in efx_register_set_t *rsp,
__in size_t count)
{
unsigned int bit;
efx_oword_t original;
efx_oword_t reg;
efx_oword_t buf;
efx_rc_t rc;
while (count > 0) {
/* This function is only suitable for registers */
EFSYS_ASSERT(rsp->rows == 1);
/* bit sweep on and off */
EFSYS_BAR_READO(enp->en_esbp, rsp->address, &original,
B_TRUE);
for (bit = 0; bit < 128; bit++) {
/* Is this bit in the mask? */
if (~(rsp->mask.eo_u32[bit >> 5]) & (1 << bit))
continue;
/* Test this bit can be set in isolation */
reg = original;
EFX_AND_OWORD(reg, rsp->mask);
EFX_SET_OWORD_BIT(reg, bit);
EFSYS_BAR_WRITEO(enp->en_esbp, rsp->address, &reg,
B_TRUE);
EFSYS_BAR_READO(enp->en_esbp, rsp->address, &buf,
B_TRUE);
EFX_AND_OWORD(buf, rsp->mask);
if (memcmp(&reg, &buf, sizeof (reg))) {
rc = EIO;
goto fail1;
}
/* Test this bit can be cleared in isolation */
EFX_OR_OWORD(reg, rsp->mask);
EFX_CLEAR_OWORD_BIT(reg, bit);
EFSYS_BAR_WRITEO(enp->en_esbp, rsp->address, &reg,
B_TRUE);
EFSYS_BAR_READO(enp->en_esbp, rsp->address, &buf,
B_TRUE);
EFX_AND_OWORD(buf, rsp->mask);
if (memcmp(&reg, &buf, sizeof (reg))) {
rc = EIO;
goto fail2;
}
}
/* Restore the old value */
EFSYS_BAR_WRITEO(enp->en_esbp, rsp->address, &original,
B_TRUE);
--count;
++rsp;
}
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
/* Restore the old value */
EFSYS_BAR_WRITEO(enp->en_esbp, rsp->address, &original, B_TRUE);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_test_tables(
__in efx_nic_t *enp,
__in efx_register_set_t *rsp,
__in efx_pattern_type_t pattern,
__in size_t count)
{
efx_sram_pattern_fn_t func;
unsigned int index;
unsigned int address;
efx_oword_t reg;
efx_oword_t buf;
efx_rc_t rc;
EFSYS_ASSERT(pattern < EFX_PATTERN_NTYPES);
func = __efx_sram_pattern_fns[pattern];
while (count > 0) {
/* Write */
address = rsp->address;
for (index = 0; index < rsp->rows; ++index) {
func(2 * index + 0, B_FALSE, &reg.eo_qword[0]);
func(2 * index + 1, B_FALSE, &reg.eo_qword[1]);
EFX_AND_OWORD(reg, rsp->mask);
EFSYS_BAR_WRITEO(enp->en_esbp, address, &reg, B_TRUE);
address += rsp->step;
}
/* Read */
address = rsp->address;
for (index = 0; index < rsp->rows; ++index) {
func(2 * index + 0, B_FALSE, &reg.eo_qword[0]);
func(2 * index + 1, B_FALSE, &reg.eo_qword[1]);
EFX_AND_OWORD(reg, rsp->mask);
EFSYS_BAR_READO(enp->en_esbp, address, &buf, B_TRUE);
if (memcmp(&reg, &buf, sizeof (reg))) {
rc = EIO;
goto fail1;
}
address += rsp->step;
}
++rsp;
--count;
}
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
#endif /* EFSYS_OPT_DIAG */
#if EFSYS_OPT_LOOPBACK
extern void
efx_loopback_mask(
__in efx_loopback_kind_t loopback_kind,
__out efx_qword_t *maskp)
{
efx_qword_t mask;
EFSYS_ASSERT3U(loopback_kind, <, EFX_LOOPBACK_NKINDS);
EFSYS_ASSERT(maskp != NULL);
/* Assert the MC_CMD_LOOPBACK and EFX_LOOPBACK namespace agree */
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_NONE == EFX_LOOPBACK_OFF);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_DATA == EFX_LOOPBACK_DATA);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMAC == EFX_LOOPBACK_GMAC);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGMII == EFX_LOOPBACK_XGMII);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGXS == EFX_LOOPBACK_XGXS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI == EFX_LOOPBACK_XAUI);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMII == EFX_LOOPBACK_GMII);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SGMII == EFX_LOOPBACK_SGMII);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGBR == EFX_LOOPBACK_XGBR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XFI == EFX_LOOPBACK_XFI);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI_FAR == EFX_LOOPBACK_XAUI_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMII_FAR == EFX_LOOPBACK_GMII_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SGMII_FAR == EFX_LOOPBACK_SGMII_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XFI_FAR == EFX_LOOPBACK_XFI_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GPHY == EFX_LOOPBACK_GPHY);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PHYXS == EFX_LOOPBACK_PHY_XS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PCS == EFX_LOOPBACK_PCS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PMAPMD == EFX_LOOPBACK_PMA_PMD);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XPORT == EFX_LOOPBACK_XPORT);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XGMII_WS == EFX_LOOPBACK_XGMII_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI_WS == EFX_LOOPBACK_XAUI_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI_WS_FAR ==
EFX_LOOPBACK_XAUI_WS_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XAUI_WS_NEAR ==
EFX_LOOPBACK_XAUI_WS_NEAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_GMII_WS == EFX_LOOPBACK_GMII_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XFI_WS == EFX_LOOPBACK_XFI_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_XFI_WS_FAR ==
EFX_LOOPBACK_XFI_WS_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PHYXS_WS == EFX_LOOPBACK_PHYXS_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PMA_INT == EFX_LOOPBACK_PMA_INT);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SD_NEAR == EFX_LOOPBACK_SD_NEAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SD_FAR == EFX_LOOPBACK_SD_FAR);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_PMA_INT_WS ==
EFX_LOOPBACK_PMA_INT_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SD_FEP2_WS ==
EFX_LOOPBACK_SD_FEP2_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SD_FEP1_5_WS ==
EFX_LOOPBACK_SD_FEP1_5_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SD_FEP_WS == EFX_LOOPBACK_SD_FEP_WS);
EFX_STATIC_ASSERT(MC_CMD_LOOPBACK_SD_FES_WS == EFX_LOOPBACK_SD_FES_WS);
/* Build bitmask of possible loopback types */
EFX_ZERO_QWORD(mask);
if ((loopback_kind == EFX_LOOPBACK_KIND_OFF) ||
(loopback_kind == EFX_LOOPBACK_KIND_ALL)) {
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_OFF);
}
if ((loopback_kind == EFX_LOOPBACK_KIND_MAC) ||
(loopback_kind == EFX_LOOPBACK_KIND_ALL)) {
/*
* The "MAC" grouping has historically been used by drivers to
* mean loopbacks supported by on-chip hardware. Keep that
* meaning here, and include on-chip PHY layer loopbacks.
*/
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_DATA);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_GMAC);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XGMII);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XGXS);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XAUI);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_GMII);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_SGMII);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XGBR);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XFI);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XAUI_FAR);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_GMII_FAR);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_SGMII_FAR);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_XFI_FAR);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_PMA_INT);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_SD_NEAR);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_SD_FAR);
}
if ((loopback_kind == EFX_LOOPBACK_KIND_PHY) ||
(loopback_kind == EFX_LOOPBACK_KIND_ALL)) {
/*
* The "PHY" grouping has historically been used by drivers to
* mean loopbacks supported by off-chip hardware. Keep that
* meaning here.
*/
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_GPHY);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_PHY_XS);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_PCS);
EFX_SET_QWORD_BIT(mask, EFX_LOOPBACK_PMA_PMD);
}
*maskp = mask;
}
__checkReturn efx_rc_t
efx_mcdi_get_loopback_modes(
__in efx_nic_t *enp)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_mcdi_req_t req;
uint8_t payload[MAX(MC_CMD_GET_LOOPBACK_MODES_IN_LEN,
MC_CMD_GET_LOOPBACK_MODES_OUT_LEN)];
efx_qword_t mask;
efx_qword_t modes;
efx_rc_t rc;
(void) memset(payload, 0, sizeof (payload));
req.emr_cmd = MC_CMD_GET_LOOPBACK_MODES;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_GET_LOOPBACK_MODES_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_GET_LOOPBACK_MODES_OUT_LEN;
efx_mcdi_execute(enp, &req);
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail1;
}
if (req.emr_out_length_used <
MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_OFST +
MC_CMD_GET_LOOPBACK_MODES_OUT_SUGGESTED_LEN) {
rc = EMSGSIZE;
goto fail2;
}
/*
* We assert the MC_CMD_LOOPBACK and EFX_LOOPBACK namespaces agree
* in efx_loopback_mask() and in siena_phy.c:siena_phy_get_link().
*/
efx_loopback_mask(EFX_LOOPBACK_KIND_ALL, &mask);
EFX_AND_QWORD(mask,
*MCDI_OUT2(req, efx_qword_t, GET_LOOPBACK_MODES_OUT_SUGGESTED));
modes = *MCDI_OUT2(req, efx_qword_t, GET_LOOPBACK_MODES_OUT_100M);
EFX_AND_QWORD(modes, mask);
encp->enc_loopback_types[EFX_LINK_100FDX] = modes;
modes = *MCDI_OUT2(req, efx_qword_t, GET_LOOPBACK_MODES_OUT_1G);
EFX_AND_QWORD(modes, mask);
encp->enc_loopback_types[EFX_LINK_1000FDX] = modes;
modes = *MCDI_OUT2(req, efx_qword_t, GET_LOOPBACK_MODES_OUT_10G);
EFX_AND_QWORD(modes, mask);
encp->enc_loopback_types[EFX_LINK_10000FDX] = modes;
if (req.emr_out_length_used >=
MC_CMD_GET_LOOPBACK_MODES_OUT_40G_OFST +
MC_CMD_GET_LOOPBACK_MODES_OUT_40G_LEN) {
/* Response includes 40G loopback modes */
modes =
*MCDI_OUT2(req, efx_qword_t, GET_LOOPBACK_MODES_OUT_40G);
EFX_AND_QWORD(modes, mask);
encp->enc_loopback_types[EFX_LINK_40000FDX] = modes;
}
EFX_ZERO_QWORD(modes);
EFX_SET_QWORD_BIT(modes, EFX_LOOPBACK_OFF);
EFX_OR_QWORD(modes, encp->enc_loopback_types[EFX_LINK_100FDX]);
EFX_OR_QWORD(modes, encp->enc_loopback_types[EFX_LINK_1000FDX]);
EFX_OR_QWORD(modes, encp->enc_loopback_types[EFX_LINK_10000FDX]);
EFX_OR_QWORD(modes, encp->enc_loopback_types[EFX_LINK_40000FDX]);
encp->enc_loopback_types[EFX_LINK_UNKNOWN] = modes;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
#endif /* EFSYS_OPT_LOOPBACK */
__checkReturn efx_rc_t
efx_nic_calculate_pcie_link_bandwidth(
__in uint32_t pcie_link_width,
__in uint32_t pcie_link_gen,
__out uint32_t *bandwidth_mbpsp)
{
uint32_t lane_bandwidth;
uint32_t total_bandwidth;
efx_rc_t rc;
if ((pcie_link_width == 0) || (pcie_link_width > 16) ||
!ISP2(pcie_link_width)) {
rc = EINVAL;
goto fail1;
}
switch (pcie_link_gen) {
case EFX_PCIE_LINK_SPEED_GEN1:
/* 2.5 Gb/s raw bandwidth with 8b/10b encoding */
lane_bandwidth = 2000;
break;
case EFX_PCIE_LINK_SPEED_GEN2:
/* 5.0 Gb/s raw bandwidth with 8b/10b encoding */
lane_bandwidth = 4000;
break;
case EFX_PCIE_LINK_SPEED_GEN3:
/* 8.0 Gb/s raw bandwidth with 128b/130b encoding */
lane_bandwidth = 7877;
break;
default:
rc = EINVAL;
goto fail2;
}
total_bandwidth = lane_bandwidth * pcie_link_width;
*bandwidth_mbpsp = total_bandwidth;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
efx_nic_check_pcie_link_speed(
__in efx_nic_t *enp,
__in uint32_t pcie_link_width,
__in uint32_t pcie_link_gen,
__out efx_pcie_link_performance_t *resultp)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
uint32_t bandwidth;
efx_pcie_link_performance_t result;
efx_rc_t rc;
if ((encp->enc_required_pcie_bandwidth_mbps == 0) ||
(pcie_link_width == 0) || (pcie_link_width == 32) ||
(pcie_link_gen == 0)) {
/*
* No usable info on what is required and/or in use. In virtual
* machines, sometimes the PCIe link width is reported as 0 or
* 32, or the speed as 0.
*/
result = EFX_PCIE_LINK_PERFORMANCE_UNKNOWN_BANDWIDTH;
goto out;
}
/* Calculate the available bandwidth in megabits per second */
rc = efx_nic_calculate_pcie_link_bandwidth(pcie_link_width,
pcie_link_gen, &bandwidth);
if (rc != 0)
goto fail1;
if (bandwidth < encp->enc_required_pcie_bandwidth_mbps) {
result = EFX_PCIE_LINK_PERFORMANCE_SUBOPTIMAL_BANDWIDTH;
} else if (pcie_link_gen < encp->enc_max_pcie_link_gen) {
/* The link provides enough bandwidth but not optimal latency */
result = EFX_PCIE_LINK_PERFORMANCE_SUBOPTIMAL_LATENCY;
} else {
result = EFX_PCIE_LINK_PERFORMANCE_OPTIMAL;
}
out:
*resultp = result;
return (0);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
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