/*-
* Copyright 2007-2009 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 AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include "efsys.h"
#include "efx.h"
#include "efx_types.h"
#include "efx_regs.h"
#include "efx_impl.h"
#if EFSYS_OPT_QSTATS
#define EFX_EV_QSTAT_INCR(_eep, _stat) \
do { \
(_eep)->ee_stat[_stat]++; \
_NOTE(CONSTANTCONDITION) \
} while (B_FALSE)
#else
#define EFX_EV_QSTAT_INCR(_eep, _stat)
#endif
__checkReturn int
efx_ev_init(
__in efx_nic_t *enp)
{
efx_oword_t oword;
int rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
if (enp->en_mod_flags & EFX_MOD_EV) {
rc = EINVAL;
goto fail1;
}
EFSYS_ASSERT3U(enp->en_ev_qcount, ==, 0);
/*
* Program the event queue for receive and transmit queue
* flush events.
*/
EFX_BAR_READO(enp, FR_AZ_DP_CTRL_REG, &oword);
EFX_SET_OWORD_FIELD(oword, FRF_AZ_FLS_EVQ_ID, 0);
EFX_BAR_WRITEO(enp, FR_AZ_DP_CTRL_REG, &oword);
enp->en_mod_flags |= EFX_MOD_EV;
return (0);
fail1:
EFSYS_PROBE1(fail1, int, rc);
return (rc);
}
static __checkReturn boolean_t
efx_ev_rx_not_ok(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in uint32_t label,
__in uint32_t id,
__inout uint16_t *flagsp)
{
boolean_t ignore = B_FALSE;
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_TOBE_DISC) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_TOBE_DISC);
EFSYS_PROBE(tobe_disc);
/*
* Assume this is a unicast address mismatch, unless below
* we find either FSF_AZ_RX_EV_ETH_CRC_ERR or
* EV_RX_PAUSE_FRM_ERR is set.
*/
(*flagsp) |= EFX_ADDR_MISMATCH;
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_FRM_TRUNC) != 0) {
EFSYS_PROBE2(frm_trunc, uint32_t, label, uint32_t, id);
EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
(*flagsp) |= EFX_DISCARD;
#if (EFSYS_OPT_RX_HDR_SPLIT || EFSYS_OPT_RX_SCATTER)
/*
* Lookout for payload queue ran dry errors and ignore them.
*
* Sadly for the header/data split cases, the descriptor
* pointer in this event refers to the header queue and
* therefore cannot be easily detected as duplicate.
* So we drop these and rely on the receive processing seeing
* a subsequent packet with FSF_AZ_RX_EV_SOP set to discard
* the partially received packet.
*/
if ((EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_SOP) == 0) &&
(EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_JUMBO_CONT) == 0) &&
(EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_BYTE_CNT) == 0))
ignore = B_TRUE;
#endif /* EFSYS_OPT_RX_HDR_SPLIT || EFSYS_OPT_RX_SCATTER */
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_ETH_CRC_ERR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_ETH_CRC_ERR);
EFSYS_PROBE(crc_err);
(*flagsp) &= ~EFX_ADDR_MISMATCH;
(*flagsp) |= EFX_DISCARD;
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_PAUSE_FRM_ERR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_PAUSE_FRM_ERR);
EFSYS_PROBE(pause_frm_err);
(*flagsp) &= ~EFX_ADDR_MISMATCH;
(*flagsp) |= EFX_DISCARD;
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_BUF_OWNER_ID_ERR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_BUF_OWNER_ID_ERR);
EFSYS_PROBE(owner_id_err);
(*flagsp) |= EFX_DISCARD;
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_IP_HDR_CHKSUM_ERR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_IPV4_HDR_CHKSUM_ERR);
EFSYS_PROBE(ipv4_err);
(*flagsp) &= ~EFX_CKSUM_IPV4;
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_TCP_UDP_CHKSUM_ERR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_UDP_CHKSUM_ERR);
EFSYS_PROBE(udp_chk_err);
(*flagsp) &= ~EFX_CKSUM_TCPUDP;
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_IP_FRAG_ERR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_IP_FRAG_ERR);
/*
* If IP is fragmented FSF_AZ_RX_EV_IP_FRAG_ERR is set. This
* causes FSF_AZ_RX_EV_PKT_OK to be clear. This is not an error
* condition.
*/
(*flagsp) &= ~(EFX_PKT_TCP | EFX_PKT_UDP | EFX_CKSUM_TCPUDP);
}
return (ignore);
}
static __checkReturn boolean_t
efx_ev_rx(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
efx_nic_t *enp = eep->ee_enp;
uint32_t id;
uint32_t size;
uint32_t label;
boolean_t ok;
#if (EFSYS_OPT_RX_HDR_SPLIT || EFSYS_OPT_RX_SCATTER)
boolean_t sop;
boolean_t jumbo_cont;
#endif /* EFSYS_OPT_RX_HDR_SPLIT || EFSYS_OPT_RX_SCATTER */
uint32_t hdr_type;
boolean_t is_v6;
uint16_t flags;
boolean_t ignore;
boolean_t should_abort;
EFX_EV_QSTAT_INCR(eep, EV_RX);
/* Basic packet information */
id = EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_DESC_PTR);
size = EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_BYTE_CNT);
label = EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_Q_LABEL);
ok = (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_PKT_OK) != 0);
#if (EFSYS_OPT_RX_HDR_SPLIT || EFSYS_OPT_RX_SCATTER)
sop = (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_SOP) != 0);
jumbo_cont = (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_JUMBO_CONT) != 0);
#endif /* EFSYS_OPT_RX_HDR_SPLIT || EFSYS_OPT_RX_SCATTER */
hdr_type = EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_HDR_TYPE);
is_v6 = (enp->en_family != EFX_FAMILY_FALCON &&
EFX_QWORD_FIELD(*eqp, FSF_CZ_RX_EV_IPV6_PKT) != 0);
/*
* If packet is marked as OK and packet type is TCP/IP or
* UDP/IP or other IP, then we can rely on the hardware checksums.
*/
switch (hdr_type) {
case FSE_AZ_RX_EV_HDR_TYPE_IPV4V6_TCP:
flags = EFX_PKT_TCP | EFX_CKSUM_TCPUDP;
if (is_v6) {
EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV6);
flags |= EFX_PKT_IPV6;
} else {
EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV4);
flags |= EFX_PKT_IPV4 | EFX_CKSUM_IPV4;
}
break;
case FSE_AZ_RX_EV_HDR_TYPE_IPV4V6_UDP:
flags = EFX_PKT_UDP | EFX_CKSUM_TCPUDP;
if (is_v6) {
EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV6);
flags |= EFX_PKT_IPV6;
} else {
EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV4);
flags |= EFX_PKT_IPV4 | EFX_CKSUM_IPV4;
}
break;
case FSE_AZ_RX_EV_HDR_TYPE_IPV4V6_OTHER:
if (is_v6) {
EFX_EV_QSTAT_INCR(eep, EV_RX_OTHER_IPV6);
flags = EFX_PKT_IPV6;
} else {
EFX_EV_QSTAT_INCR(eep, EV_RX_OTHER_IPV4);
flags = EFX_PKT_IPV4 | EFX_CKSUM_IPV4;
}
break;
case FSE_AZ_RX_EV_HDR_TYPE_OTHER:
EFX_EV_QSTAT_INCR(eep, EV_RX_NON_IP);
flags = 0;
break;
default:
EFSYS_ASSERT(B_FALSE);
flags = 0;
break;
}
#if EFSYS_OPT_RX_SCATTER || EFSYS_OPT_RX_HDR_SPLIT
/* Report scatter and header/lookahead split buffer flags */
if (sop)
flags |= EFX_PKT_START;
if (jumbo_cont)
flags |= EFX_PKT_CONT;
#endif /* EFSYS_OPT_RX_SCATTER || EFSYS_OPT_RX_HDR_SPLIT */
/* Detect errors included in the FSF_AZ_RX_EV_PKT_OK indication */
if (!ok) {
ignore = efx_ev_rx_not_ok(eep, eqp, label, id, &flags);
if (ignore) {
EFSYS_PROBE4(rx_complete, uint32_t, label, uint32_t, id,
uint32_t, size, uint16_t, flags);
return (B_FALSE);
}
}
/* If we're not discarding the packet then it is ok */
if (~flags & EFX_DISCARD)
EFX_EV_QSTAT_INCR(eep, EV_RX_OK);
/* Detect multicast packets that didn't match the filter */
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_MCAST_PKT) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_MCAST_PKT);
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_MCAST_HASH_MATCH) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_RX_MCAST_HASH_MATCH);
} else {
EFSYS_PROBE(mcast_mismatch);
flags |= EFX_ADDR_MISMATCH;
}
} else {
flags |= EFX_PKT_UNICAST;
}
/*
* The packet parser in Siena can abort parsing packets under
* certain error conditions, setting the PKT_NOT_PARSED bit
* (which clears PKT_OK). If this is set, then don't trust
* the PKT_TYPE field.
*/
if (enp->en_family != EFX_FAMILY_FALCON && !ok) {
uint32_t parse_err;
parse_err = EFX_QWORD_FIELD(*eqp, FSF_CZ_RX_EV_PKT_NOT_PARSED);
if (parse_err != 0)
flags |= EFX_CHECK_VLAN;
}
if (~flags & EFX_CHECK_VLAN) {
uint32_t pkt_type;
pkt_type = EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_PKT_TYPE);
if (pkt_type >= FSE_AZ_RX_EV_PKT_TYPE_VLAN)
flags |= EFX_PKT_VLAN_TAGGED;
}
EFSYS_PROBE4(rx_complete, uint32_t, label, uint32_t, id,
uint32_t, size, uint16_t, flags);
EFSYS_ASSERT(eecp->eec_rx != NULL);
should_abort = eecp->eec_rx(arg, label, id, size, flags);
return (should_abort);
}
static __checkReturn boolean_t
efx_ev_tx(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
uint32_t id;
uint32_t label;
boolean_t should_abort;
EFX_EV_QSTAT_INCR(eep, EV_TX);
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_COMP) != 0 &&
EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_PKT_ERR) == 0 &&
EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_PKT_TOO_BIG) == 0 &&
EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_WQ_FF_FULL) == 0) {
id = EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_DESC_PTR);
label = EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_Q_LABEL);
EFSYS_PROBE2(tx_complete, uint32_t, label, uint32_t, id);
EFSYS_ASSERT(eecp->eec_tx != NULL);
should_abort = eecp->eec_tx(arg, label, id);
return (should_abort);
}
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_COMP) != 0)
EFSYS_PROBE3(bad_event, unsigned int, eep->ee_index,
uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_PKT_ERR) != 0)
EFX_EV_QSTAT_INCR(eep, EV_TX_PKT_ERR);
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_PKT_TOO_BIG) != 0)
EFX_EV_QSTAT_INCR(eep, EV_TX_PKT_TOO_BIG);
if (EFX_QWORD_FIELD(*eqp, FSF_AZ_TX_EV_WQ_FF_FULL) != 0)
EFX_EV_QSTAT_INCR(eep, EV_TX_WQ_FF_FULL);
EFX_EV_QSTAT_INCR(eep, EV_TX_UNEXPECTED);
return (B_FALSE);
}
static __checkReturn boolean_t
efx_ev_global(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
efx_nic_t *enp = eep->ee_enp;
efx_port_t *epp = &(enp->en_port);
boolean_t should_abort;
EFX_EV_QSTAT_INCR(eep, EV_GLOBAL);
should_abort = B_FALSE;
/* Check for a link management event */
if (EFX_QWORD_FIELD(*eqp, FSF_BZ_GLB_EV_XG_MNT_INTR) != 0) {
EFX_EV_QSTAT_INCR(eep, EV_GLOBAL_MNT);
EFSYS_PROBE(xg_mgt);
epp->ep_mac_poll_needed = B_TRUE;
}
return (should_abort);
}
static __checkReturn boolean_t
efx_ev_driver(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
boolean_t should_abort;
EFX_EV_QSTAT_INCR(eep, EV_DRIVER);
should_abort = B_FALSE;
switch (EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_SUBCODE)) {
case FSE_AZ_TX_DESCQ_FLS_DONE_EV: {
uint32_t txq_index;
EFX_EV_QSTAT_INCR(eep, EV_DRIVER_TX_DESCQ_FLS_DONE);
txq_index = EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_SUBDATA);
EFSYS_PROBE1(tx_descq_fls_done, uint32_t, txq_index);
EFSYS_ASSERT(eecp->eec_txq_flush_done != NULL);
should_abort = eecp->eec_txq_flush_done(arg, txq_index);
break;
}
case FSE_AZ_RX_DESCQ_FLS_DONE_EV: {
uint32_t rxq_index;
uint32_t failed;
rxq_index = EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_RX_DESCQ_ID);
failed = EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_RX_FLUSH_FAIL);
EFSYS_ASSERT(eecp->eec_rxq_flush_done != NULL);
EFSYS_ASSERT(eecp->eec_rxq_flush_failed != NULL);
if (failed) {
EFX_EV_QSTAT_INCR(eep, EV_DRIVER_RX_DESCQ_FLS_FAILED);
EFSYS_PROBE1(rx_descq_fls_failed, uint32_t, rxq_index);
should_abort = eecp->eec_rxq_flush_failed(arg, rxq_index);
} else {
EFX_EV_QSTAT_INCR(eep, EV_DRIVER_RX_DESCQ_FLS_DONE);
EFSYS_PROBE1(rx_descq_fls_done, uint32_t, rxq_index);
should_abort = eecp->eec_rxq_flush_done(arg, rxq_index);
}
break;
}
case FSE_AZ_EVQ_INIT_DONE_EV:
EFSYS_ASSERT(eecp->eec_initialized != NULL);
should_abort = eecp->eec_initialized(arg);
break;
case FSE_AZ_EVQ_NOT_EN_EV:
EFSYS_PROBE(evq_not_en);
break;
case FSE_AZ_SRM_UPD_DONE_EV: {
uint32_t code;
EFX_EV_QSTAT_INCR(eep, EV_DRIVER_SRM_UPD_DONE);
code = EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_SUBDATA);
EFSYS_ASSERT(eecp->eec_sram != NULL);
should_abort = eecp->eec_sram(arg, code);
break;
}
case FSE_AZ_WAKE_UP_EV: {
uint32_t id;
id = EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_SUBDATA);
EFSYS_ASSERT(eecp->eec_wake_up != NULL);
should_abort = eecp->eec_wake_up(arg, id);
break;
}
case FSE_AZ_TX_PKT_NON_TCP_UDP:
EFSYS_PROBE(tx_pkt_non_tcp_udp);
break;
case FSE_AZ_TIMER_EV: {
uint32_t id;
id = EFX_QWORD_FIELD(*eqp, FSF_AZ_DRIVER_EV_SUBDATA);
EFSYS_ASSERT(eecp->eec_timer != NULL);
should_abort = eecp->eec_timer(arg, id);
break;
}
case FSE_AZ_RX_DSC_ERROR_EV:
EFX_EV_QSTAT_INCR(eep, EV_DRIVER_RX_DSC_ERROR);
EFSYS_PROBE(rx_dsc_error);
EFSYS_ASSERT(eecp->eec_exception != NULL);
should_abort = eecp->eec_exception(arg,
EFX_EXCEPTION_RX_DSC_ERROR, 0);
break;
case FSE_AZ_TX_DSC_ERROR_EV:
EFX_EV_QSTAT_INCR(eep, EV_DRIVER_TX_DSC_ERROR);
EFSYS_PROBE(tx_dsc_error);
EFSYS_ASSERT(eecp->eec_exception != NULL);
should_abort = eecp->eec_exception(arg,
EFX_EXCEPTION_TX_DSC_ERROR, 0);
break;
default:
break;
}
return (should_abort);
}
static __checkReturn boolean_t
efx_ev_drv_gen(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
uint32_t data;
boolean_t should_abort;
EFX_EV_QSTAT_INCR(eep, EV_DRV_GEN);
data = EFX_QWORD_FIELD(*eqp, FSF_AZ_EV_DATA_DW0);
if (data >= ((uint32_t)1 << 16)) {
EFSYS_PROBE3(bad_event, unsigned int, eep->ee_index,
uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
return (B_TRUE);
}
EFSYS_ASSERT(eecp->eec_software != NULL);
should_abort = eecp->eec_software(arg, (uint16_t)data);
return (should_abort);
}
#if EFSYS_OPT_MCDI
static __checkReturn boolean_t
efx_ev_mcdi(
__in efx_evq_t *eep,
__in efx_qword_t *eqp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
efx_nic_t *enp = eep->ee_enp;
unsigned code;
boolean_t should_abort = B_FALSE;
EFSYS_ASSERT3U(enp->en_family, ==, EFX_FAMILY_SIENA);
if (enp->en_family != EFX_FAMILY_SIENA)
goto out;
EFX_EV_QSTAT_INCR(eep, EV_MCDI_RESPONSE);
code = EFX_QWORD_FIELD(*eqp, MCDI_EVENT_CODE);
switch (code) {
case MCDI_EVENT_CODE_BADSSERT:
efx_mcdi_ev_death(enp, EINTR);
break;
case MCDI_EVENT_CODE_CMDDONE:
efx_mcdi_ev_cpl(enp,
MCDI_EV_FIELD(*eqp, CMDDONE_SEQ),
MCDI_EV_FIELD(*eqp, CMDDONE_DATALEN),
MCDI_EV_FIELD(*eqp, CMDDONE_ERRNO));
break;
case MCDI_EVENT_CODE_LINKCHANGE: {
efx_link_mode_t link_mode;
siena_phy_link_ev(enp, eqp, &link_mode);
should_abort = eecp->eec_link_change(arg, link_mode);
break;
}
case MCDI_EVENT_CODE_SENSOREVT: {
#if EFSYS_OPT_MON_STATS
efx_mon_stat_t id;
efx_mon_stat_value_t value;
int rc;
if ((rc = siena_mon_ev(enp, eqp, &id, &value)) == 0)
should_abort = eecp->eec_monitor(arg, id, value);
else if (rc == ENOTSUP) {
should_abort = eecp->eec_exception(arg,
EFX_EXCEPTION_UNKNOWN_SENSOREVT,
MCDI_EV_FIELD(eqp, DATA));
} else
EFSYS_ASSERT(rc == ENODEV); /* Wrong port */
#else
should_abort = B_FALSE;
#endif
break;
}
case MCDI_EVENT_CODE_SCHEDERR:
/* Informational only */
break;
case MCDI_EVENT_CODE_REBOOT:
efx_mcdi_ev_death(enp, EIO);
break;
case MCDI_EVENT_CODE_MAC_STATS_DMA:
#if EFSYS_OPT_MAC_STATS
if (eecp->eec_mac_stats != NULL) {
eecp->eec_mac_stats(arg,
MCDI_EV_FIELD(eqp, MAC_STATS_DMA_GENERATION));
}
#endif
break;
case MCDI_EVENT_CODE_FWALERT: {
uint32_t reason = MCDI_EV_FIELD(eqp, FWALERT_REASON);
if (reason == MCDI_EVENT_FWALERT_REASON_SRAM_ACCESS)
should_abort = eecp->eec_exception(arg,
EFX_EXCEPTION_FWALERT_SRAM,
MCDI_EV_FIELD(eqp, FWALERT_DATA));
else
should_abort = eecp->eec_exception(arg,
EFX_EXCEPTION_UNKNOWN_FWALERT,
MCDI_EV_FIELD(eqp, DATA));
break;
}
default:
EFSYS_PROBE1(mc_pcol_error, int, code);
break;
}
out:
return (should_abort);
}
#endif /* EFSYS_OPT_SIENA */
__checkReturn int
efx_ev_qprime(
__in efx_evq_t *eep,
__in unsigned int count)
{
efx_nic_t *enp = eep->ee_enp;
uint32_t rptr;
efx_dword_t dword;
int rc;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
if (!(enp->en_mod_flags & EFX_MOD_INTR)) {
rc = EINVAL;
goto fail1;
}
rptr = count & eep->ee_mask;
EFX_POPULATE_DWORD_1(dword, FRF_AZ_EVQ_RPTR, rptr);
EFX_BAR_TBL_WRITED(enp, FR_AZ_EVQ_RPTR_REG, eep->ee_index,
&dword, B_FALSE);
return (0);
fail1:
EFSYS_PROBE1(fail1, int, rc);
return (rc);
}
__checkReturn boolean_t
efx_ev_qpending(
__in efx_evq_t *eep,
__in unsigned int count)
{
size_t offset;
efx_qword_t qword;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
offset = (count & eep->ee_mask) * sizeof (efx_qword_t);
EFSYS_MEM_READQ(eep->ee_esmp, offset, &qword);
return (EFX_QWORD_FIELD(qword, EFX_DWORD_0) != 0xffffffff &&
EFX_QWORD_FIELD(qword, EFX_DWORD_1) != 0xffffffff);
}
#if EFSYS_OPT_EV_PREFETCH
void
efx_ev_qprefetch(
__in efx_evq_t *eep,
__in unsigned int count)
{
unsigned int offset;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
offset = (count & eep->ee_mask) * sizeof (efx_qword_t);
EFSYS_MEM_PREFETCH(eep->ee_esmp, offset);
}
#endif /* EFSYS_OPT_EV_PREFETCH */
#define EFX_EV_BATCH 8
#define EFX_EV_PRESENT(_qword) \
(EFX_QWORD_FIELD((_qword), EFX_DWORD_0) != 0xffffffff && \
EFX_QWORD_FIELD((_qword), EFX_DWORD_1) != 0xffffffff)
void
efx_ev_qpoll(
__in efx_evq_t *eep,
__inout unsigned int *countp,
__in const efx_ev_callbacks_t *eecp,
__in_opt void *arg)
{
efx_qword_t ev[EFX_EV_BATCH];
unsigned int batch;
unsigned int total;
unsigned int count;
unsigned int index;
size_t offset;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
EFSYS_ASSERT(countp != NULL);
EFSYS_ASSERT(eecp != NULL);
count = *countp;
do {
/* Read up until the end of the batch period */
batch = EFX_EV_BATCH - (count & (EFX_EV_BATCH - 1));
offset = (count & eep->ee_mask) * sizeof (efx_qword_t);
for (total = 0; total < batch; ++total) {
EFSYS_MEM_READQ(eep->ee_esmp, offset, &(ev[total]));
if (!EFX_EV_PRESENT(ev[total]))
break;
EFSYS_PROBE3(event, unsigned int, eep->ee_index,
uint32_t, EFX_QWORD_FIELD(ev[total], EFX_DWORD_1),
uint32_t, EFX_QWORD_FIELD(ev[total], EFX_DWORD_0));
offset += sizeof (efx_qword_t);
}
#if EFSYS_OPT_EV_PREFETCH && (EFSYS_OPT_EV_PREFETCH_PERIOD > 1)
/*
* Prefetch the next batch when we get within PREFETCH_PERIOD
* of a completed batch. If the batch is smaller, then prefetch
* immediately.
*/
if (total == batch && total < EFSYS_OPT_EV_PREFETCH_PERIOD)
EFSYS_MEM_PREFETCH(eep->ee_esmp, offset);
#endif /* EFSYS_OPT_EV_PREFETCH */
/* Process the batch of events */
for (index = 0; index < total; ++index) {
boolean_t should_abort;
uint32_t code;
efx_ev_handler_t handler;
#if EFSYS_OPT_EV_PREFETCH
/* Prefetch if we've now reached the batch period */
if (total == batch &&
index + EFSYS_OPT_EV_PREFETCH_PERIOD == total) {
offset = (count + batch) & eep->ee_mask;
offset *= sizeof (efx_qword_t);
EFSYS_MEM_PREFETCH(eep->ee_esmp, offset);
}
#endif /* EFSYS_OPT_EV_PREFETCH */
EFX_EV_QSTAT_INCR(eep, EV_ALL);
code = EFX_QWORD_FIELD(ev[index], FSF_AZ_EV_CODE);
handler = eep->ee_handler[code];
EFSYS_ASSERT(handler != NULL);
should_abort = handler(eep, &(ev[index]), eecp, arg);
if (should_abort) {
/* Ignore subsequent events */
total = index + 1;
break;
}
}
/*
* Now that the hardware has most likely moved onto dma'ing
* into the next cache line, clear the processed events. Take
* care to only clear out events that we've processed
*/
EFX_SET_QWORD(ev[0]);
offset = (count & eep->ee_mask) * sizeof (efx_qword_t);
for (index = 0; index < total; ++index) {
EFSYS_MEM_WRITEQ(eep->ee_esmp, offset, &(ev[0]));
offset += sizeof (efx_qword_t);
}
count += total;
} while (total == batch);
*countp = count;
}
void
efx_ev_qpost(
__in efx_evq_t *eep,
__in uint16_t data)
{
efx_nic_t *enp = eep->ee_enp;
efx_qword_t ev;
efx_oword_t oword;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
EFX_POPULATE_QWORD_2(ev, FSF_AZ_EV_CODE, FSE_AZ_EV_CODE_DRV_GEN_EV,
FSF_AZ_EV_DATA_DW0, (uint32_t)data);
EFX_POPULATE_OWORD_3(oword, FRF_AZ_DRV_EV_QID, eep->ee_index,
EFX_DWORD_0, EFX_QWORD_FIELD(ev, EFX_DWORD_0),
EFX_DWORD_1, EFX_QWORD_FIELD(ev, EFX_DWORD_1));
EFX_BAR_WRITEO(enp, FR_AZ_DRV_EV_REG, &oword);
}
__checkReturn int
efx_ev_qmoderate(
__in efx_evq_t *eep,
__in unsigned int us)
{
efx_nic_t *enp = eep->ee_enp;
unsigned int locked;
efx_dword_t dword;
int rc;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
if (us > enp->en_nic_cfg.enc_evq_moderation_max) {
rc = EINVAL;
goto fail1;
}
/* If the value is zero then disable the timer */
if (us == 0) {
if (enp->en_family == EFX_FAMILY_FALCON)
EFX_POPULATE_DWORD_2(dword,
FRF_AB_TC_TIMER_MODE, FFE_AB_TIMER_MODE_DIS,
FRF_AB_TC_TIMER_VAL, 0);
else
EFX_POPULATE_DWORD_2(dword,
FRF_CZ_TC_TIMER_MODE, FFE_CZ_TIMER_MODE_DIS,
FRF_CZ_TC_TIMER_VAL, 0);
} else {
uint32_t timer_val;
/* Calculate the timer value in quanta */
us -= (us % EFX_EV_TIMER_QUANTUM);
if (us < EFX_EV_TIMER_QUANTUM)
us = EFX_EV_TIMER_QUANTUM;
timer_val = us / EFX_EV_TIMER_QUANTUM;
/* Moderation value is base 0 so we need to deduct 1 */
if (enp->en_family == EFX_FAMILY_FALCON)
EFX_POPULATE_DWORD_2(dword,
FRF_AB_TC_TIMER_MODE, FFE_AB_TIMER_MODE_INT_HLDOFF,
FRF_AB_TIMER_VAL, timer_val - 1);
else
EFX_POPULATE_DWORD_2(dword,
FRF_CZ_TC_TIMER_MODE, FFE_CZ_TIMER_MODE_INT_HLDOFF,
FRF_CZ_TC_TIMER_VAL, timer_val - 1);
}
locked = (eep->ee_index == 0) ? 1 : 0;
EFX_BAR_TBL_WRITED(enp, FR_BZ_TIMER_COMMAND_REGP0,
eep->ee_index, &dword, locked);
return (0);
fail1:
EFSYS_PROBE1(fail1, int, rc);
return (rc);
}
__checkReturn int
efx_ev_qcreate(
__in efx_nic_t *enp,
__in unsigned int index,
__in efsys_mem_t *esmp,
__in size_t n,
__in uint32_t id,
__deref_out efx_evq_t **eepp)
{
efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
uint32_t size;
efx_evq_t *eep;
efx_oword_t oword;
int rc;
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_EV);
EFSYS_ASSERT3U(enp->en_ev_qcount + 1, <, encp->enc_evq_limit);
if (!ISP2(n) || !(n & EFX_EVQ_NEVS_MASK)) {
rc = EINVAL;
goto fail1;
}
if (index >= encp->enc_evq_limit) {
rc = EINVAL;
goto fail2;
}
#if EFSYS_OPT_RX_SCALE
if (enp->en_intr.ei_type == EFX_INTR_LINE &&
index >= EFX_MAXRSS_LEGACY) {
rc = EINVAL;
goto fail3;
}
#endif
for (size = 0; (1 << size) <= (EFX_EVQ_MAXNEVS / EFX_EVQ_MINNEVS);
size++)
if ((1 << size) == (int)(n / EFX_EVQ_MINNEVS))
break;
if (id + (1 << size) >= encp->enc_buftbl_limit) {
rc = EINVAL;
goto fail4;
}
/* Allocate an EVQ object */
EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (efx_evq_t), eep);
if (eep == NULL) {
rc = ENOMEM;
goto fail5;
}
eep->ee_magic = EFX_EVQ_MAGIC;
eep->ee_enp = enp;
eep->ee_index = index;
eep->ee_mask = n - 1;
eep->ee_esmp = esmp;
/* Set up the handler table */
eep->ee_handler[FSE_AZ_EV_CODE_RX_EV] = efx_ev_rx;
eep->ee_handler[FSE_AZ_EV_CODE_TX_EV] = efx_ev_tx;
eep->ee_handler[FSE_AZ_EV_CODE_DRIVER_EV] = efx_ev_driver;
eep->ee_handler[FSE_AZ_EV_CODE_GLOBAL_EV] = efx_ev_global;
eep->ee_handler[FSE_AZ_EV_CODE_DRV_GEN_EV] = efx_ev_drv_gen;
#if EFSYS_OPT_MCDI
eep->ee_handler[FSE_AZ_EV_CODE_MCDI_EVRESPONSE] = efx_ev_mcdi;
#endif /* EFSYS_OPT_SIENA */
/* Set up the new event queue */
if (enp->en_family != EFX_FAMILY_FALCON) {
EFX_POPULATE_OWORD_1(oword, FRF_CZ_TIMER_Q_EN, 1);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_TIMER_TBL, index, &oword);
}
EFX_POPULATE_OWORD_3(oword, FRF_AZ_EVQ_EN, 1, FRF_AZ_EVQ_SIZE, size,
FRF_AZ_EVQ_BUF_BASE_ID, id);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_EVQ_PTR_TBL, index, &oword);
enp->en_ev_qcount++;
*eepp = eep;
return (0);
fail5:
EFSYS_PROBE(fail5);
fail4:
EFSYS_PROBE(fail4);
#if EFSYS_OPT_RX_SCALE
fail3:
EFSYS_PROBE(fail3);
#endif
fail2:
EFSYS_PROBE(fail2);
fail1:
EFSYS_PROBE1(fail1, int, rc);
return (rc);
}
#if EFSYS_OPT_QSTATS
#if EFSYS_OPT_NAMES
/* START MKCONFIG GENERATED EfxEventQueueStatNamesBlock 67e9bdcd920059bd */
static const char __cs * __cs __efx_ev_qstat_name[] = {
"all",
"rx",
"rx_ok",
"rx_recovery",
"rx_frm_trunc",
"rx_tobe_disc",
"rx_pause_frm_err",
"rx_buf_owner_id_err",
"rx_ipv4_hdr_chksum_err",
"rx_tcp_udp_chksum_err",
"rx_eth_crc_err",
"rx_ip_frag_err",
"rx_mcast_pkt",
"rx_mcast_hash_match",
"rx_tcp_ipv4",
"rx_tcp_ipv6",
"rx_udp_ipv4",
"rx_udp_ipv6",
"rx_other_ipv4",
"rx_other_ipv6",
"rx_non_ip",
"rx_overrun",
"tx",
"tx_wq_ff_full",
"tx_pkt_err",
"tx_pkt_too_big",
"tx_unexpected",
"global",
"global_phy",
"global_mnt",
"global_rx_recovery",
"driver",
"driver_srm_upd_done",
"driver_tx_descq_fls_done",
"driver_rx_descq_fls_done",
"driver_rx_descq_fls_failed",
"driver_rx_dsc_error",
"driver_tx_dsc_error",
"drv_gen",
"mcdi_response",
};
/* END MKCONFIG GENERATED EfxEventQueueStatNamesBlock */
const char __cs *
efx_ev_qstat_name(
__in efx_nic_t *enp,
__in unsigned int id)
{
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(id, <, EV_NQSTATS);
return (__efx_ev_qstat_name[id]);
}
#endif /* EFSYS_OPT_NAMES */
#endif /* EFSYS_OPT_QSTATS */
#if EFSYS_OPT_QSTATS
void
efx_ev_qstats_update(
__in efx_evq_t *eep,
__inout_ecount(EV_NQSTATS) efsys_stat_t *stat)
{
unsigned int id;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
for (id = 0; id < EV_NQSTATS; id++) {
efsys_stat_t *essp = &stat[id];
EFSYS_STAT_INCR(essp, eep->ee_stat[id]);
eep->ee_stat[id] = 0;
}
}
#endif /* EFSYS_OPT_QSTATS */
void
efx_ev_qdestroy(
__in efx_evq_t *eep)
{
efx_nic_t *enp = eep->ee_enp;
efx_oword_t oword;
EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
EFSYS_ASSERT(enp->en_ev_qcount != 0);
--enp->en_ev_qcount;
/* Purge event queue */
EFX_ZERO_OWORD(oword);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_EVQ_PTR_TBL,
eep->ee_index, &oword);
if (enp->en_family != EFX_FAMILY_FALCON) {
EFX_ZERO_OWORD(oword);
EFX_BAR_TBL_WRITEO(enp, FR_AZ_TIMER_TBL,
eep->ee_index, &oword);
}
/* Free the EVQ object */
EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_evq_t), eep);
}
void
efx_ev_fini(
__in efx_nic_t *enp)
{
EFSYS_ASSERT3U(enp->en_magic, ==, EFX_NIC_MAGIC);
EFSYS_ASSERT3U(enp->en_mod_flags, &, EFX_MOD_INTR);
EFSYS_ASSERT3U(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));
EFSYS_ASSERT3U(enp->en_ev_qcount, ==, 0);
enp->en_mod_flags &= ~EFX_MOD_EV;
}
