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/*
* Copyright (c) 2012-2016 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_HUNTINGTON || EFSYS_OPT_MEDFORD
__checkReturn efx_rc_t
ef10_intr_init(
__in efx_nic_t *enp,
__in efx_intr_type_t type,
__in efsys_mem_t *esmp)
{
_NOTE(ARGUNUSED(enp, type, esmp))
return (0);
}
void
ef10_intr_enable(
__in efx_nic_t *enp)
{
_NOTE(ARGUNUSED(enp))
}
void
ef10_intr_disable(
__in efx_nic_t *enp)
{
_NOTE(ARGUNUSED(enp))
}
void
ef10_intr_disable_unlocked(
__in efx_nic_t *enp)
{
_NOTE(ARGUNUSED(enp))
}
static __checkReturn efx_rc_t
efx_mcdi_trigger_interrupt(
__in efx_nic_t *enp,
__in unsigned int level)
{
efx_mcdi_req_t req;
uint8_t payload[MAX(MC_CMD_TRIGGER_INTERRUPT_IN_LEN,
MC_CMD_TRIGGER_INTERRUPT_OUT_LEN)];
efx_rc_t rc;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
if (level >= enp->en_nic_cfg.enc_intr_limit) {
rc = EINVAL;
goto fail1;
}
(void) memset(payload, 0, sizeof (payload));
req.emr_cmd = MC_CMD_TRIGGER_INTERRUPT;
req.emr_in_buf = payload;
req.emr_in_length = MC_CMD_TRIGGER_INTERRUPT_IN_LEN;
req.emr_out_buf = payload;
req.emr_out_length = MC_CMD_TRIGGER_INTERRUPT_OUT_LEN;
MCDI_IN_SET_DWORD(req, TRIGGER_INTERRUPT_IN_INTR_LEVEL, level);
efx_mcdi_execute(enp, &req);
if (req.emr_rc != 0) {
rc = req.emr_rc;
goto fail2;
}
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
__checkReturn efx_rc_t
ef10_intr_trigger(
__in efx_nic_t *enp,
__in unsigned int level)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
efx_rc_t rc;
if (encp->enc_bug41750_workaround) {
/*
* bug 41750: Test interrupts don't work on Greenport
* bug 50084: Test interrupts don't work on VFs
*/
rc = ENOTSUP;
goto fail1;
}
if ((rc = efx_mcdi_trigger_interrupt(enp, level)) != 0)
goto fail2;
return (0);
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, efx_rc_t, rc);
return (rc);
}
void
ef10_intr_status_line(
__in efx_nic_t *enp,
__out boolean_t *fatalp,
__out uint32_t *qmaskp)
{
efx_dword_t dword;
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
/* Read the queue mask and implicitly acknowledge the interrupt. */
EFX_BAR_READD(enp, ER_DZ_BIU_INT_ISR_REG, &dword, B_FALSE);
*qmaskp = EFX_DWORD_FIELD(dword, EFX_DWORD_0);
EFSYS_PROBE1(qmask, uint32_t, *qmaskp);
*fatalp = B_FALSE;
}
void
ef10_intr_status_message(
__in efx_nic_t *enp,
__in unsigned int message,
__out boolean_t *fatalp)
{
EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
enp->en_family == EFX_FAMILY_MEDFORD);
_NOTE(ARGUNUSED(enp, message))
/* EF10 fatal errors are reported via events */
*fatalp = B_FALSE;
}
void
ef10_intr_fatal(
__in efx_nic_t *enp)
{
/* EF10 fatal errors are reported via events */
_NOTE(ARGUNUSED(enp))
}
void
ef10_intr_fini(
__in efx_nic_t *enp)
{
_NOTE(ARGUNUSED(enp))
}
#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
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