d707fb201e
Correct annotations where NULL input can be permitted Submitted by: Richard Houldsworth <rhouldsworth at solarflare.com> Sponsored by: Solarflare Communications, Inc. Differential Revision: https://reviews.freebsd.org/D18284
595 lines
15 KiB
C
595 lines
15 KiB
C
/*-
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* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
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*
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* Copyright (c) 2007-2016 Solarflare Communications Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* The views and conclusions contained in the software and documentation are
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* those of the authors and should not be interpreted as representing official
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* policies, either expressed or implied, of the FreeBSD Project.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "efx.h"
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#include "efx_impl.h"
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#if EFSYS_OPT_SIENA
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static __checkReturn efx_rc_t
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siena_intr_init(
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__in efx_nic_t *enp,
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__in efx_intr_type_t type,
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__in efsys_mem_t *esmp);
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static void
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siena_intr_enable(
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__in efx_nic_t *enp);
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static void
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siena_intr_disable(
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__in efx_nic_t *enp);
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static void
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siena_intr_disable_unlocked(
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__in efx_nic_t *enp);
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static __checkReturn efx_rc_t
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siena_intr_trigger(
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__in efx_nic_t *enp,
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__in unsigned int level);
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static void
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siena_intr_fini(
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__in efx_nic_t *enp);
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static void
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siena_intr_status_line(
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__in efx_nic_t *enp,
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__out boolean_t *fatalp,
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__out uint32_t *qmaskp);
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static void
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siena_intr_status_message(
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__in efx_nic_t *enp,
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__in unsigned int message,
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__out boolean_t *fatalp);
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static void
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siena_intr_fatal(
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__in efx_nic_t *enp);
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static __checkReturn boolean_t
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siena_intr_check_fatal(
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__in efx_nic_t *enp);
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#endif /* EFSYS_OPT_SIENA */
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#if EFSYS_OPT_SIENA
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static const efx_intr_ops_t __efx_intr_siena_ops = {
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siena_intr_init, /* eio_init */
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siena_intr_enable, /* eio_enable */
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siena_intr_disable, /* eio_disable */
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siena_intr_disable_unlocked, /* eio_disable_unlocked */
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siena_intr_trigger, /* eio_trigger */
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siena_intr_status_line, /* eio_status_line */
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siena_intr_status_message, /* eio_status_message */
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siena_intr_fatal, /* eio_fatal */
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siena_intr_fini, /* eio_fini */
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};
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#endif /* EFSYS_OPT_SIENA */
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#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2
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static const efx_intr_ops_t __efx_intr_ef10_ops = {
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ef10_intr_init, /* eio_init */
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ef10_intr_enable, /* eio_enable */
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ef10_intr_disable, /* eio_disable */
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ef10_intr_disable_unlocked, /* eio_disable_unlocked */
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ef10_intr_trigger, /* eio_trigger */
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ef10_intr_status_line, /* eio_status_line */
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ef10_intr_status_message, /* eio_status_message */
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ef10_intr_fatal, /* eio_fatal */
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ef10_intr_fini, /* eio_fini */
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};
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#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD || EFSYS_OPT_MEDFORD2 */
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__checkReturn efx_rc_t
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efx_intr_init(
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__in efx_nic_t *enp,
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__in efx_intr_type_t type,
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__in_opt efsys_mem_t *esmp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop;
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efx_rc_t rc;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
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if (enp->en_mod_flags & EFX_MOD_INTR) {
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rc = EINVAL;
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goto fail1;
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}
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eip->ei_esmp = esmp;
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eip->ei_type = type;
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eip->ei_level = 0;
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enp->en_mod_flags |= EFX_MOD_INTR;
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switch (enp->en_family) {
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#if EFSYS_OPT_SIENA
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case EFX_FAMILY_SIENA:
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eiop = &__efx_intr_siena_ops;
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break;
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#endif /* EFSYS_OPT_SIENA */
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#if EFSYS_OPT_HUNTINGTON
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case EFX_FAMILY_HUNTINGTON:
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eiop = &__efx_intr_ef10_ops;
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break;
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#endif /* EFSYS_OPT_HUNTINGTON */
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#if EFSYS_OPT_MEDFORD
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case EFX_FAMILY_MEDFORD:
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eiop = &__efx_intr_ef10_ops;
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break;
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#endif /* EFSYS_OPT_MEDFORD */
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#if EFSYS_OPT_MEDFORD2
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case EFX_FAMILY_MEDFORD2:
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eiop = &__efx_intr_ef10_ops;
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break;
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#endif /* EFSYS_OPT_MEDFORD2 */
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default:
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EFSYS_ASSERT(B_FALSE);
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rc = ENOTSUP;
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goto fail2;
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}
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if ((rc = eiop->eio_init(enp, type, esmp)) != 0)
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goto fail3;
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eip->ei_eiop = eiop;
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return (0);
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fail3:
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EFSYS_PROBE(fail3);
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fail2:
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EFSYS_PROBE(fail2);
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fail1:
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EFSYS_PROBE1(fail1, efx_rc_t, rc);
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return (rc);
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}
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void
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efx_intr_fini(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_NIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_fini(enp);
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enp->en_mod_flags &= ~EFX_MOD_INTR;
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}
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void
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efx_intr_enable(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_enable(enp);
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}
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void
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efx_intr_disable(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_disable(enp);
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}
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void
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efx_intr_disable_unlocked(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_disable_unlocked(enp);
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}
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__checkReturn efx_rc_t
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efx_intr_trigger(
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__in efx_nic_t *enp,
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__in unsigned int level)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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return (eiop->eio_trigger(enp, level));
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}
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void
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efx_intr_status_line(
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__in efx_nic_t *enp,
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__out boolean_t *fatalp,
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__out uint32_t *qmaskp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_status_line(enp, fatalp, qmaskp);
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}
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void
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efx_intr_status_message(
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__in efx_nic_t *enp,
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__in unsigned int message,
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__out boolean_t *fatalp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_status_message(enp, message, fatalp);
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}
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void
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efx_intr_fatal(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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const efx_intr_ops_t *eiop = eip->ei_eiop;
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EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
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EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
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eiop->eio_fatal(enp);
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}
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/* ************************************************************************* */
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/* ************************************************************************* */
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/* ************************************************************************* */
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#if EFSYS_OPT_SIENA
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static __checkReturn efx_rc_t
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siena_intr_init(
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__in efx_nic_t *enp,
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__in efx_intr_type_t type,
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__in efsys_mem_t *esmp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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efx_oword_t oword;
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efx_rc_t rc;
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if ((esmp == NULL) || (EFSYS_MEM_SIZE(esmp) < EFX_INTR_SIZE)) {
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rc = EINVAL;
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goto fail1;
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}
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/*
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* bug17213 workaround.
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*
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* Under legacy interrupts, don't share a level between fatal
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* interrupts and event queue interrupts. Under MSI-X, they
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* must share, or we won't get an interrupt.
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*/
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if (enp->en_family == EFX_FAMILY_SIENA &&
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eip->ei_type == EFX_INTR_LINE)
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eip->ei_level = 0x1f;
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else
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eip->ei_level = 0;
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/* Enable all the genuinely fatal interrupts */
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EFX_SET_OWORD(oword);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_ILL_ADR_INT_KER_EN, 0);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_RBUF_OWN_INT_KER_EN, 0);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_TBUF_OWN_INT_KER_EN, 0);
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if (enp->en_family >= EFX_FAMILY_SIENA)
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EFX_SET_OWORD_FIELD(oword, FRF_CZ_SRAM_PERR_INT_P_KER_EN, 0);
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EFX_BAR_WRITEO(enp, FR_AZ_FATAL_INTR_REG_KER, &oword);
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/* Set up the interrupt address register */
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EFX_POPULATE_OWORD_3(oword,
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FRF_AZ_NORM_INT_VEC_DIS_KER, (type == EFX_INTR_MESSAGE) ? 1 : 0,
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FRF_AZ_INT_ADR_KER_DW0, EFSYS_MEM_ADDR(esmp) & 0xffffffff,
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FRF_AZ_INT_ADR_KER_DW1, EFSYS_MEM_ADDR(esmp) >> 32);
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EFX_BAR_WRITEO(enp, FR_AZ_INT_ADR_REG_KER, &oword);
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return (0);
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fail1:
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EFSYS_PROBE1(fail1, efx_rc_t, rc);
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return (rc);
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}
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static void
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siena_intr_enable(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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efx_oword_t oword;
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EFX_BAR_READO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_KER_INT_LEVE_SEL, eip->ei_level);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_DRV_INT_EN_KER, 1);
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EFX_BAR_WRITEO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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}
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static void
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siena_intr_disable(
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__in efx_nic_t *enp)
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{
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efx_oword_t oword;
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EFX_BAR_READO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_DRV_INT_EN_KER, 0);
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EFX_BAR_WRITEO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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EFSYS_SPIN(10);
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}
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static void
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siena_intr_disable_unlocked(
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__in efx_nic_t *enp)
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{
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efx_oword_t oword;
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EFSYS_BAR_READO(enp->en_esbp, FR_AZ_INT_EN_REG_KER_OFST,
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&oword, B_FALSE);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_DRV_INT_EN_KER, 0);
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EFSYS_BAR_WRITEO(enp->en_esbp, FR_AZ_INT_EN_REG_KER_OFST,
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&oword, B_FALSE);
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}
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static __checkReturn efx_rc_t
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siena_intr_trigger(
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__in efx_nic_t *enp,
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__in unsigned int level)
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{
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efx_intr_t *eip = &(enp->en_intr);
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efx_oword_t oword;
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unsigned int count;
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uint32_t sel;
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efx_rc_t rc;
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/* bug16757: No event queues can be initialized */
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EFSYS_ASSERT(!(enp->en_mod_flags & EFX_MOD_EV));
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if (level >= EFX_NINTR_SIENA) {
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rc = EINVAL;
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goto fail1;
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}
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if (level > EFX_MASK32(FRF_AZ_KER_INT_LEVE_SEL))
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return (ENOTSUP); /* avoid EFSYS_PROBE() */
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sel = level;
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/* Trigger a test interrupt */
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EFX_BAR_READO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_KER_INT_LEVE_SEL, sel);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_KER_INT_KER, 1);
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EFX_BAR_WRITEO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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/*
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* Wait up to 100ms for the interrupt to be raised before restoring
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* KER_INT_LEVE_SEL. Ignore a failure to raise (the caller will
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* observe this soon enough anyway), but always reset KER_INT_LEVE_SEL
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*/
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count = 0;
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do {
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EFSYS_SPIN(100); /* 100us */
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EFX_BAR_READO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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} while (EFX_OWORD_FIELD(oword, FRF_AZ_KER_INT_KER) && ++count < 1000);
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EFX_SET_OWORD_FIELD(oword, FRF_AZ_KER_INT_LEVE_SEL, eip->ei_level);
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EFX_BAR_WRITEO(enp, FR_AZ_INT_EN_REG_KER, &oword);
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return (0);
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fail1:
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EFSYS_PROBE1(fail1, efx_rc_t, rc);
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return (rc);
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}
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static __checkReturn boolean_t
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siena_intr_check_fatal(
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__in efx_nic_t *enp)
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{
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efx_intr_t *eip = &(enp->en_intr);
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efsys_mem_t *esmp = eip->ei_esmp;
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efx_oword_t oword;
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/* Read the syndrome */
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EFSYS_MEM_READO(esmp, 0, &oword);
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if (EFX_OWORD_FIELD(oword, FSF_AZ_NET_IVEC_FATAL_INT) != 0) {
|
|
EFSYS_PROBE(fatal);
|
|
|
|
/* Clear the fatal interrupt condition */
|
|
EFX_SET_OWORD_FIELD(oword, FSF_AZ_NET_IVEC_FATAL_INT, 0);
|
|
EFSYS_MEM_WRITEO(esmp, 0, &oword);
|
|
|
|
return (B_TRUE);
|
|
}
|
|
|
|
return (B_FALSE);
|
|
}
|
|
|
|
static void
|
|
siena_intr_status_line(
|
|
__in efx_nic_t *enp,
|
|
__out boolean_t *fatalp,
|
|
__out uint32_t *qmaskp)
|
|
{
|
|
efx_intr_t *eip = &(enp->en_intr);
|
|
efx_dword_t dword;
|
|
|
|
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
|
|
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
|
|
|
|
/*
|
|
* Read the queue mask and implicitly acknowledge the
|
|
* interrupt.
|
|
*/
|
|
EFX_BAR_READD(enp, FR_BZ_INT_ISR0_REG, &dword, B_FALSE);
|
|
*qmaskp = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
|
|
|
|
EFSYS_PROBE1(qmask, uint32_t, *qmaskp);
|
|
|
|
if (*qmaskp & (1U << eip->ei_level))
|
|
*fatalp = siena_intr_check_fatal(enp);
|
|
else
|
|
*fatalp = B_FALSE;
|
|
}
|
|
|
|
static void
|
|
siena_intr_status_message(
|
|
__in efx_nic_t *enp,
|
|
__in unsigned int message,
|
|
__out boolean_t *fatalp)
|
|
{
|
|
efx_intr_t *eip = &(enp->en_intr);
|
|
|
|
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
|
|
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
|
|
|
|
if (message == eip->ei_level)
|
|
*fatalp = siena_intr_check_fatal(enp);
|
|
else
|
|
*fatalp = B_FALSE;
|
|
}
|
|
|
|
|
|
static void
|
|
siena_intr_fatal(
|
|
__in efx_nic_t *enp)
|
|
{
|
|
#if EFSYS_OPT_DECODE_INTR_FATAL
|
|
efx_oword_t fatal;
|
|
efx_oword_t mem_per;
|
|
|
|
EFX_BAR_READO(enp, FR_AZ_FATAL_INTR_REG_KER, &fatal);
|
|
EFX_ZERO_OWORD(mem_per);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_SRM_PERR_INT_KER) != 0 ||
|
|
EFX_OWORD_FIELD(fatal, FRF_AZ_MEM_PERR_INT_KER) != 0)
|
|
EFX_BAR_READO(enp, FR_AZ_MEM_STAT_REG, &mem_per);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_SRAM_OOB_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_SRAM_OOB, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_BUFID_DC_OOB_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_BUFID_DC_OOB, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_MEM_PERR_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_MEM_PERR,
|
|
EFX_OWORD_FIELD(mem_per, EFX_DWORD_0),
|
|
EFX_OWORD_FIELD(mem_per, EFX_DWORD_1));
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_RBUF_OWN_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_RBUF_OWN, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_TBUF_OWN_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_TBUF_OWN, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_RDESCQ_OWN_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_RDESQ_OWN, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_TDESCQ_OWN_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_TDESQ_OWN, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_EVQ_OWN_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_EVQ_OWN, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_EVF_OFLO_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_EVFF_OFLO, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_ILL_ADR_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_ILL_ADDR, 0, 0);
|
|
|
|
if (EFX_OWORD_FIELD(fatal, FRF_AZ_SRM_PERR_INT_KER) != 0)
|
|
EFSYS_ERR(enp->en_esip, EFX_ERR_SRAM_PERR,
|
|
EFX_OWORD_FIELD(mem_per, EFX_DWORD_0),
|
|
EFX_OWORD_FIELD(mem_per, EFX_DWORD_1));
|
|
#else
|
|
EFSYS_ASSERT(0);
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
siena_intr_fini(
|
|
__in efx_nic_t *enp)
|
|
{
|
|
efx_oword_t oword;
|
|
|
|
/* Clear the interrupt address register */
|
|
EFX_ZERO_OWORD(oword);
|
|
EFX_BAR_WRITEO(enp, FR_AZ_INT_ADR_REG_KER, &oword);
|
|
}
|
|
|
|
#endif /* EFSYS_OPT_SIENA */
|