--- /dev/null
+/*
+ * 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_MON_STATS
+#include "mcdi_mon.h"
+#endif
+
+#if EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD
+
+#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
+
+/*
+ * Non-interrupting event queue requires interrrupting event queue to
+ * refer to for wake-up events even if wake ups are never used.
+ * It could be even non-allocated event queue.
+ */
+#define EFX_EF10_ALWAYS_INTERRUPTING_EVQ_INDEX (0)
+
+static __checkReturn boolean_t
+ef10_ev_rx(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg);
+
+static __checkReturn boolean_t
+ef10_ev_tx(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg);
+
+static __checkReturn boolean_t
+ef10_ev_driver(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg);
+
+static __checkReturn boolean_t
+ef10_ev_drv_gen(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg);
+
+static __checkReturn boolean_t
+ef10_ev_mcdi(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg);
+
+
+static __checkReturn efx_rc_t
+efx_mcdi_set_evq_tmr(
+ __in efx_nic_t *enp,
+ __in uint32_t instance,
+ __in uint32_t mode,
+ __in uint32_t timer_ns)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_SET_EVQ_TMR_IN_LEN,
+ MC_CMD_SET_EVQ_TMR_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_SET_EVQ_TMR;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_SET_EVQ_TMR_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_SET_EVQ_TMR_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_INSTANCE, instance);
+ MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_TMR_LOAD_REQ_NS, timer_ns);
+ MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_TMR_RELOAD_REQ_NS, timer_ns);
+ MCDI_IN_SET_DWORD(req, SET_EVQ_TMR_IN_TMR_MODE, mode);
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_SET_EVQ_TMR_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail2;
+ }
+
+ return (0);
+
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_init_evq(
+ __in efx_nic_t *enp,
+ __in unsigned int instance,
+ __in efsys_mem_t *esmp,
+ __in size_t nevs,
+ __in uint32_t irq,
+ __in uint32_t us,
+ __in uint32_t flags,
+ __in boolean_t low_latency)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[
+ MAX(MC_CMD_INIT_EVQ_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
+ MC_CMD_INIT_EVQ_OUT_LEN)];
+ efx_qword_t *dma_addr;
+ uint64_t addr;
+ int npages;
+ int i;
+ boolean_t interrupting;
+ int ev_cut_through;
+ efx_rc_t rc;
+
+ npages = EFX_EVQ_NBUFS(nevs);
+ if (MC_CMD_INIT_EVQ_IN_LEN(npages) > MC_CMD_INIT_EVQ_IN_LENMAX) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_INIT_EVQ;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_INIT_EVQ_IN_LEN(npages);
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_INIT_EVQ_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_SIZE, nevs);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_INSTANCE, instance);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_IRQ_NUM, irq);
+
+ interrupting = ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
+ EFX_EVQ_FLAGS_NOTIFY_INTERRUPT);
+
+ /*
+ * On Huntington RX and TX event batching can only be requested together
+ * (even if the datapath firmware doesn't actually support RX
+ * batching). If event cut through is enabled no RX batching will occur.
+ *
+ * So always enable RX and TX event batching, and enable event cut
+ * through if we want low latency operation.
+ */
+ switch (flags & EFX_EVQ_FLAGS_TYPE_MASK) {
+ case EFX_EVQ_FLAGS_TYPE_AUTO:
+ ev_cut_through = low_latency ? 1 : 0;
+ break;
+ case EFX_EVQ_FLAGS_TYPE_THROUGHPUT:
+ ev_cut_through = 0;
+ break;
+ case EFX_EVQ_FLAGS_TYPE_LOW_LATENCY:
+ ev_cut_through = 1;
+ break;
+ default:
+ rc = EINVAL;
+ goto fail2;
+ }
+ MCDI_IN_POPULATE_DWORD_6(req, INIT_EVQ_IN_FLAGS,
+ INIT_EVQ_IN_FLAG_INTERRUPTING, interrupting,
+ INIT_EVQ_IN_FLAG_RPTR_DOS, 0,
+ INIT_EVQ_IN_FLAG_INT_ARMD, 0,
+ INIT_EVQ_IN_FLAG_CUT_THRU, ev_cut_through,
+ INIT_EVQ_IN_FLAG_RX_MERGE, 1,
+ INIT_EVQ_IN_FLAG_TX_MERGE, 1);
+
+ /* If the value is zero then disable the timer */
+ if (us == 0) {
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_MODE,
+ MC_CMD_INIT_EVQ_IN_TMR_MODE_DIS);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_LOAD, 0);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_RELOAD, 0);
+ } else {
+ unsigned int ticks;
+
+ if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
+ goto fail3;
+
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_MODE,
+ MC_CMD_INIT_EVQ_IN_TMR_INT_HLDOFF);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_LOAD, ticks);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_TMR_RELOAD, ticks);
+ }
+
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_COUNT_MODE,
+ MC_CMD_INIT_EVQ_IN_COUNT_MODE_DIS);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_IN_COUNT_THRSHLD, 0);
+
+ dma_addr = MCDI_IN2(req, efx_qword_t, INIT_EVQ_IN_DMA_ADDR);
+ addr = EFSYS_MEM_ADDR(esmp);
+
+ for (i = 0; i < npages; i++) {
+ EFX_POPULATE_QWORD_2(*dma_addr,
+ EFX_DWORD_1, (uint32_t)(addr >> 32),
+ EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
+
+ dma_addr++;
+ addr += EFX_BUF_SIZE;
+ }
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail4;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_INIT_EVQ_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail5;
+ }
+
+ /* NOTE: ignore the returned IRQ param as firmware does not set it. */
+
+ return (0);
+
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+static __checkReturn efx_rc_t
+efx_mcdi_init_evq_v2(
+ __in efx_nic_t *enp,
+ __in unsigned int instance,
+ __in efsys_mem_t *esmp,
+ __in size_t nevs,
+ __in uint32_t irq,
+ __in uint32_t us,
+ __in uint32_t flags)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[
+ MAX(MC_CMD_INIT_EVQ_V2_IN_LEN(EFX_EVQ_NBUFS(EFX_EVQ_MAXNEVS)),
+ MC_CMD_INIT_EVQ_V2_OUT_LEN)];
+ boolean_t interrupting;
+ unsigned int evq_type;
+ efx_qword_t *dma_addr;
+ uint64_t addr;
+ int npages;
+ int i;
+ efx_rc_t rc;
+
+ npages = EFX_EVQ_NBUFS(nevs);
+ if (MC_CMD_INIT_EVQ_V2_IN_LEN(npages) > MC_CMD_INIT_EVQ_V2_IN_LENMAX) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_INIT_EVQ;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_INIT_EVQ_V2_IN_LEN(npages);
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_INIT_EVQ_V2_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_SIZE, nevs);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_INSTANCE, instance);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_IRQ_NUM, irq);
+
+ interrupting = ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
+ EFX_EVQ_FLAGS_NOTIFY_INTERRUPT);
+
+ switch (flags & EFX_EVQ_FLAGS_TYPE_MASK) {
+ case EFX_EVQ_FLAGS_TYPE_AUTO:
+ evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_AUTO;
+ break;
+ case EFX_EVQ_FLAGS_TYPE_THROUGHPUT:
+ evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_THROUGHPUT;
+ break;
+ case EFX_EVQ_FLAGS_TYPE_LOW_LATENCY:
+ evq_type = MC_CMD_INIT_EVQ_V2_IN_FLAG_TYPE_LOW_LATENCY;
+ break;
+ default:
+ rc = EINVAL;
+ goto fail2;
+ }
+ MCDI_IN_POPULATE_DWORD_4(req, INIT_EVQ_V2_IN_FLAGS,
+ INIT_EVQ_V2_IN_FLAG_INTERRUPTING, interrupting,
+ INIT_EVQ_V2_IN_FLAG_RPTR_DOS, 0,
+ INIT_EVQ_V2_IN_FLAG_INT_ARMD, 0,
+ INIT_EVQ_V2_IN_FLAG_TYPE, evq_type);
+
+ /* If the value is zero then disable the timer */
+ if (us == 0) {
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_MODE,
+ MC_CMD_INIT_EVQ_V2_IN_TMR_MODE_DIS);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_LOAD, 0);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_RELOAD, 0);
+ } else {
+ unsigned int ticks;
+
+ if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
+ goto fail3;
+
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_MODE,
+ MC_CMD_INIT_EVQ_V2_IN_TMR_INT_HLDOFF);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_LOAD, ticks);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_TMR_RELOAD, ticks);
+ }
+
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_COUNT_MODE,
+ MC_CMD_INIT_EVQ_V2_IN_COUNT_MODE_DIS);
+ MCDI_IN_SET_DWORD(req, INIT_EVQ_V2_IN_COUNT_THRSHLD, 0);
+
+ dma_addr = MCDI_IN2(req, efx_qword_t, INIT_EVQ_V2_IN_DMA_ADDR);
+ addr = EFSYS_MEM_ADDR(esmp);
+
+ for (i = 0; i < npages; i++) {
+ EFX_POPULATE_QWORD_2(*dma_addr,
+ EFX_DWORD_1, (uint32_t)(addr >> 32),
+ EFX_DWORD_0, (uint32_t)(addr & 0xffffffff));
+
+ dma_addr++;
+ addr += EFX_BUF_SIZE;
+ }
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail4;
+ }
+
+ if (req.emr_out_length_used < MC_CMD_INIT_EVQ_V2_OUT_LEN) {
+ rc = EMSGSIZE;
+ goto fail5;
+ }
+
+ /* NOTE: ignore the returned IRQ param as firmware does not set it. */
+
+ EFSYS_PROBE1(mcdi_evq_flags, uint32_t,
+ MCDI_OUT_DWORD(req, INIT_EVQ_V2_OUT_FLAGS));
+
+ return (0);
+
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_fini_evq(
+ __in efx_nic_t *enp,
+ __in uint32_t instance)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_FINI_EVQ_IN_LEN,
+ MC_CMD_FINI_EVQ_OUT_LEN)];
+ efx_rc_t rc;
+
+ (void) memset(payload, 0, sizeof (payload));
+ req.emr_cmd = MC_CMD_FINI_EVQ;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_FINI_EVQ_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_FINI_EVQ_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, FINI_EVQ_IN_INSTANCE, instance);
+
+ efx_mcdi_execute_quiet(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+
+ __checkReturn efx_rc_t
+ef10_ev_init(
+ __in efx_nic_t *enp)
+{
+ _NOTE(ARGUNUSED(enp))
+ return (0);
+}
+
+ void
+ef10_ev_fini(
+ __in efx_nic_t *enp)
+{
+ _NOTE(ARGUNUSED(enp))
+}
+
+ __checkReturn efx_rc_t
+ef10_ev_qcreate(
+ __in efx_nic_t *enp,
+ __in unsigned int index,
+ __in efsys_mem_t *esmp,
+ __in size_t n,
+ __in uint32_t id,
+ __in uint32_t us,
+ __in uint32_t flags,
+ __in efx_evq_t *eep)
+{
+ efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+ uint32_t irq;
+ efx_rc_t rc;
+
+ _NOTE(ARGUNUSED(id)) /* buftbl id managed by MC */
+ EFX_STATIC_ASSERT(ISP2(EFX_EVQ_MAXNEVS));
+ EFX_STATIC_ASSERT(ISP2(EFX_EVQ_MINNEVS));
+
+ if (!ISP2(n) || (n < EFX_EVQ_MINNEVS) || (n > EFX_EVQ_MAXNEVS)) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ if (index >= encp->enc_evq_limit) {
+ rc = EINVAL;
+ goto fail2;
+ }
+
+ if (us > encp->enc_evq_timer_max_us) {
+ rc = EINVAL;
+ goto fail3;
+ }
+
+ /* Set up the handler table */
+ eep->ee_rx = ef10_ev_rx;
+ eep->ee_tx = ef10_ev_tx;
+ eep->ee_driver = ef10_ev_driver;
+ eep->ee_drv_gen = ef10_ev_drv_gen;
+ eep->ee_mcdi = ef10_ev_mcdi;
+
+ /* Set up the event queue */
+ /* INIT_EVQ expects function-relative vector number */
+ if ((flags & EFX_EVQ_FLAGS_NOTIFY_MASK) ==
+ EFX_EVQ_FLAGS_NOTIFY_INTERRUPT) {
+ irq = index;
+ } else if (index == EFX_EF10_ALWAYS_INTERRUPTING_EVQ_INDEX) {
+ irq = index;
+ flags = (flags & ~EFX_EVQ_FLAGS_NOTIFY_MASK) |
+ EFX_EVQ_FLAGS_NOTIFY_INTERRUPT;
+ } else {
+ irq = EFX_EF10_ALWAYS_INTERRUPTING_EVQ_INDEX;
+ }
+
+ /*
+ * Interrupts may be raised for events immediately after the queue is
+ * created. See bug58606.
+ */
+
+ if (encp->enc_init_evq_v2_supported) {
+ /*
+ * On Medford the low latency license is required to enable RX
+ * and event cut through and to disable RX batching. If event
+ * queue type in flags is auto, we let the firmware decide the
+ * settings to use. If the adapter has a low latency license,
+ * it will choose the best settings for low latency, otherwise
+ * it will choose the best settings for throughput.
+ */
+ rc = efx_mcdi_init_evq_v2(enp, index, esmp, n, irq, us, flags);
+ if (rc != 0)
+ goto fail4;
+ } else {
+ /*
+ * On Huntington we need to specify the settings to use.
+ * If event queue type in flags is auto, we favour throughput
+ * if the adapter is running virtualization supporting firmware
+ * (i.e. the full featured firmware variant)
+ * and latency otherwise. The Ethernet Virtual Bridging
+ * capability is used to make this decision. (Note though that
+ * the low latency firmware variant is also best for
+ * throughput and corresponding type should be specified
+ * to choose it.)
+ */
+ boolean_t low_latency = encp->enc_datapath_cap_evb ? 0 : 1;
+ rc = efx_mcdi_init_evq(enp, index, esmp, n, irq, us, flags,
+ low_latency);
+ if (rc != 0)
+ goto fail5;
+ }
+
+ return (0);
+
+fail5:
+ EFSYS_PROBE(fail5);
+fail4:
+ EFSYS_PROBE(fail4);
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+ef10_ev_qdestroy(
+ __in efx_evq_t *eep)
+{
+ efx_nic_t *enp = eep->ee_enp;
+
+ EFSYS_ASSERT(enp->en_family == EFX_FAMILY_HUNTINGTON ||
+ enp->en_family == EFX_FAMILY_MEDFORD);
+
+ (void) efx_mcdi_fini_evq(eep->ee_enp, eep->ee_index);
+}
+
+ __checkReturn efx_rc_t
+ef10_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;
+
+ rptr = count & eep->ee_mask;
+
+ if (enp->en_nic_cfg.enc_bug35388_workaround) {
+ EFX_STATIC_ASSERT(EFX_EVQ_MINNEVS >
+ (1 << ERF_DD_EVQ_IND_RPTR_WIDTH));
+ EFX_STATIC_ASSERT(EFX_EVQ_MAXNEVS <
+ (1 << 2 * ERF_DD_EVQ_IND_RPTR_WIDTH));
+
+ EFX_POPULATE_DWORD_2(dword,
+ ERF_DD_EVQ_IND_RPTR_FLAGS,
+ EFE_DD_EVQ_IND_RPTR_FLAGS_HIGH,
+ ERF_DD_EVQ_IND_RPTR,
+ (rptr >> ERF_DD_EVQ_IND_RPTR_WIDTH));
+ EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
+ &dword, B_FALSE);
+
+ EFX_POPULATE_DWORD_2(dword,
+ ERF_DD_EVQ_IND_RPTR_FLAGS,
+ EFE_DD_EVQ_IND_RPTR_FLAGS_LOW,
+ ERF_DD_EVQ_IND_RPTR,
+ rptr & ((1 << ERF_DD_EVQ_IND_RPTR_WIDTH) - 1));
+ EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT, eep->ee_index,
+ &dword, B_FALSE);
+ } else {
+ EFX_POPULATE_DWORD_1(dword, ERF_DZ_EVQ_RPTR, rptr);
+ EFX_BAR_TBL_WRITED(enp, ER_DZ_EVQ_RPTR_REG, eep->ee_index,
+ &dword, B_FALSE);
+ }
+
+ return (0);
+}
+
+static __checkReturn efx_rc_t
+efx_mcdi_driver_event(
+ __in efx_nic_t *enp,
+ __in uint32_t evq,
+ __in efx_qword_t data)
+{
+ efx_mcdi_req_t req;
+ uint8_t payload[MAX(MC_CMD_DRIVER_EVENT_IN_LEN,
+ MC_CMD_DRIVER_EVENT_OUT_LEN)];
+ efx_rc_t rc;
+
+ req.emr_cmd = MC_CMD_DRIVER_EVENT;
+ req.emr_in_buf = payload;
+ req.emr_in_length = MC_CMD_DRIVER_EVENT_IN_LEN;
+ req.emr_out_buf = payload;
+ req.emr_out_length = MC_CMD_DRIVER_EVENT_OUT_LEN;
+
+ MCDI_IN_SET_DWORD(req, DRIVER_EVENT_IN_EVQ, evq);
+
+ MCDI_IN_SET_DWORD(req, DRIVER_EVENT_IN_DATA_LO,
+ EFX_QWORD_FIELD(data, EFX_DWORD_0));
+ MCDI_IN_SET_DWORD(req, DRIVER_EVENT_IN_DATA_HI,
+ EFX_QWORD_FIELD(data, EFX_DWORD_1));
+
+ efx_mcdi_execute(enp, &req);
+
+ if (req.emr_rc != 0) {
+ rc = req.emr_rc;
+ goto fail1;
+ }
+
+ return (0);
+
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+ void
+ef10_ev_qpost(
+ __in efx_evq_t *eep,
+ __in uint16_t data)
+{
+ efx_nic_t *enp = eep->ee_enp;
+ efx_qword_t event;
+
+ EFX_POPULATE_QWORD_3(event,
+ ESF_DZ_DRV_CODE, ESE_DZ_EV_CODE_DRV_GEN_EV,
+ ESF_DZ_DRV_SUB_CODE, 0,
+ ESF_DZ_DRV_SUB_DATA_DW0, (uint32_t)data);
+
+ (void) efx_mcdi_driver_event(enp, eep->ee_index, event);
+}
+
+ __checkReturn efx_rc_t
+ef10_ev_qmoderate(
+ __in efx_evq_t *eep,
+ __in unsigned int us)
+{
+ efx_nic_t *enp = eep->ee_enp;
+ efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
+ efx_dword_t dword;
+ uint32_t mode;
+ efx_rc_t rc;
+
+ /* Check that hardware and MCDI use the same timer MODE values */
+ EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_DIS ==
+ MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_DIS);
+ EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_IMMED_START ==
+ MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_IMMED_START);
+ EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_TRIG_START ==
+ MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_TRIG_START);
+ EFX_STATIC_ASSERT(FFE_CZ_TIMER_MODE_INT_HLDOFF ==
+ MC_CMD_SET_EVQ_TMR_IN_TIMER_MODE_INT_HLDOFF);
+
+ if (us > encp->enc_evq_timer_max_us) {
+ rc = EINVAL;
+ goto fail1;
+ }
+
+ /* If the value is zero then disable the timer */
+ if (us == 0) {
+ mode = FFE_CZ_TIMER_MODE_DIS;
+ } else {
+ mode = FFE_CZ_TIMER_MODE_INT_HLDOFF;
+ }
+
+ if (encp->enc_bug61265_workaround) {
+ uint32_t ns = us * 1000;
+
+ rc = efx_mcdi_set_evq_tmr(enp, eep->ee_index, mode, ns);
+ if (rc != 0)
+ goto fail2;
+ } else {
+ unsigned int ticks;
+
+ if ((rc = efx_ev_usecs_to_ticks(enp, us, &ticks)) != 0)
+ goto fail3;
+
+ if (encp->enc_bug35388_workaround) {
+ EFX_POPULATE_DWORD_3(dword,
+ ERF_DD_EVQ_IND_TIMER_FLAGS,
+ EFE_DD_EVQ_IND_TIMER_FLAGS,
+ ERF_DD_EVQ_IND_TIMER_MODE, mode,
+ ERF_DD_EVQ_IND_TIMER_VAL, ticks);
+ EFX_BAR_TBL_WRITED(enp, ER_DD_EVQ_INDIRECT,
+ eep->ee_index, &dword, 0);
+ } else {
+ EFX_POPULATE_DWORD_2(dword,
+ ERF_DZ_TC_TIMER_MODE, mode,
+ ERF_DZ_TC_TIMER_VAL, ticks);
+ EFX_BAR_TBL_WRITED(enp, ER_DZ_EVQ_TMR_REG,
+ eep->ee_index, &dword, 0);
+ }
+ }
+
+ return (0);
+
+fail3:
+ EFSYS_PROBE(fail3);
+fail2:
+ EFSYS_PROBE(fail2);
+fail1:
+ EFSYS_PROBE1(fail1, efx_rc_t, rc);
+
+ return (rc);
+}
+
+
+#if EFSYS_OPT_QSTATS
+ void
+ef10_ev_qstats_update(
+ __in efx_evq_t *eep,
+ __inout_ecount(EV_NQSTATS) efsys_stat_t *stat)
+{
+ unsigned int id;
+
+ 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 */
+
+#if EFSYS_OPT_RX_PACKED_STREAM
+
+static __checkReturn boolean_t
+ef10_ev_rx_packed_stream(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg)
+{
+ uint32_t label;
+ uint32_t next_read_lbits;
+ uint16_t flags;
+ boolean_t should_abort;
+ efx_evq_rxq_state_t *eersp;
+ unsigned int pkt_count;
+ unsigned int current_id;
+ boolean_t new_buffer;
+
+ next_read_lbits = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DSC_PTR_LBITS);
+ label = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_QLABEL);
+ new_buffer = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_EV_ROTATE);
+
+ flags = 0;
+
+ eersp = &eep->ee_rxq_state[label];
+ pkt_count = (EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS) + 1 +
+ next_read_lbits - eersp->eers_rx_stream_npackets) &
+ EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS);
+ eersp->eers_rx_stream_npackets += pkt_count;
+
+ if (new_buffer) {
+ flags |= EFX_PKT_PACKED_STREAM_NEW_BUFFER;
+ if (eersp->eers_rx_packed_stream_credits <
+ EFX_RX_PACKED_STREAM_MAX_CREDITS)
+ eersp->eers_rx_packed_stream_credits++;
+ eersp->eers_rx_read_ptr++;
+ }
+ current_id = eersp->eers_rx_read_ptr & eersp->eers_rx_mask;
+
+ /* Check for errors that invalidate checksum and L3/L4 fields */
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECC_ERR) != 0) {
+ /* RX frame truncated (error flag is misnamed) */
+ EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
+ flags |= EFX_DISCARD;
+ goto deliver;
+ }
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECRC_ERR) != 0) {
+ /* Bad Ethernet frame CRC */
+ EFX_EV_QSTAT_INCR(eep, EV_RX_ETH_CRC_ERR);
+ flags |= EFX_DISCARD;
+ goto deliver;
+ }
+
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_PARSE_INCOMPLETE)) {
+ flags |= EFX_PKT_PACKED_STREAM_PARSE_INCOMPLETE;
+ goto deliver;
+ }
+
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_IPCKSUM_ERR))
+ EFX_EV_QSTAT_INCR(eep, EV_RX_IPV4_HDR_CHKSUM_ERR);
+
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_TCPUDP_CKSUM_ERR))
+ EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_UDP_CHKSUM_ERR);
+
+deliver:
+ /* If we're not discarding the packet then it is ok */
+ if (~flags & EFX_DISCARD)
+ EFX_EV_QSTAT_INCR(eep, EV_RX_OK);
+
+ EFSYS_ASSERT(eecp->eec_rx_ps != NULL);
+ should_abort = eecp->eec_rx_ps(arg, label, current_id, pkt_count,
+ flags);
+
+ return (should_abort);
+}
+
+#endif /* EFSYS_OPT_RX_PACKED_STREAM */
+
+static __checkReturn boolean_t
+ef10_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 size;
+ uint32_t label;
+ uint32_t mac_class;
+ uint32_t eth_tag_class;
+ uint32_t l3_class;
+ uint32_t l4_class;
+ uint32_t next_read_lbits;
+ uint16_t flags;
+ boolean_t cont;
+ boolean_t should_abort;
+ efx_evq_rxq_state_t *eersp;
+ unsigned int desc_count;
+ unsigned int last_used_id;
+
+ EFX_EV_QSTAT_INCR(eep, EV_RX);
+
+ /* Discard events after RXQ/TXQ errors */
+ if (enp->en_reset_flags & (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR))
+ return (B_FALSE);
+
+ /* Basic packet information */
+ label = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_QLABEL);
+ eersp = &eep->ee_rxq_state[label];
+
+#if EFSYS_OPT_RX_PACKED_STREAM
+ /*
+ * Packed stream events are very different,
+ * so handle them separately
+ */
+ if (eersp->eers_rx_packed_stream)
+ return (ef10_ev_rx_packed_stream(eep, eqp, eecp, arg));
+#endif
+
+ size = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_BYTES);
+ next_read_lbits = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DSC_PTR_LBITS);
+ eth_tag_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ETH_TAG_CLASS);
+ mac_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_MAC_CLASS);
+ l3_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_L3_CLASS);
+ l4_class = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_L4_CLASS);
+ cont = EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_CONT);
+
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_DROP_EVENT) != 0) {
+ /* Drop this event */
+ return (B_FALSE);
+ }
+ flags = 0;
+
+ if (cont != 0) {
+ /*
+ * This may be part of a scattered frame, or it may be a
+ * truncated frame if scatter is disabled on this RXQ.
+ * Overlength frames can be received if e.g. a VF is configured
+ * for 1500 MTU but connected to a port set to 9000 MTU
+ * (see bug56567).
+ * FIXME: There is not yet any driver that supports scatter on
+ * Huntington. Scatter support is required for OSX.
+ */
+ flags |= EFX_PKT_CONT;
+ }
+
+ if (mac_class == ESE_DZ_MAC_CLASS_UCAST)
+ flags |= EFX_PKT_UNICAST;
+
+ /* Increment the count of descriptors read */
+ desc_count = (next_read_lbits - eersp->eers_rx_read_ptr) &
+ EFX_MASK32(ESF_DZ_RX_DSC_PTR_LBITS);
+ eersp->eers_rx_read_ptr += desc_count;
+
+ /*
+ * FIXME: add error checking to make sure this a batched event.
+ * This could also be an aborted scatter, see Bug36629.
+ */
+ if (desc_count > 1) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_BATCH);
+ flags |= EFX_PKT_PREFIX_LEN;
+ }
+
+ /* Calculate the index of the last descriptor consumed */
+ last_used_id = (eersp->eers_rx_read_ptr - 1) & eersp->eers_rx_mask;
+
+ /* Check for errors that invalidate checksum and L3/L4 fields */
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECC_ERR) != 0) {
+ /* RX frame truncated (error flag is misnamed) */
+ EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
+ flags |= EFX_DISCARD;
+ goto deliver;
+ }
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_ECRC_ERR) != 0) {
+ /* Bad Ethernet frame CRC */
+ EFX_EV_QSTAT_INCR(eep, EV_RX_ETH_CRC_ERR);
+ flags |= EFX_DISCARD;
+ goto deliver;
+ }
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_PARSE_INCOMPLETE)) {
+ /*
+ * Hardware parse failed, due to malformed headers
+ * or headers that are too long for the parser.
+ * Headers and checksums must be validated by the host.
+ */
+ /* TODO: EFX_EV_QSTAT_INCR(eep, EV_RX_PARSE_INCOMPLETE); */
+ goto deliver;
+ }
+
+ if ((eth_tag_class == ESE_DZ_ETH_TAG_CLASS_VLAN1) ||
+ (eth_tag_class == ESE_DZ_ETH_TAG_CLASS_VLAN2)) {
+ flags |= EFX_PKT_VLAN_TAGGED;
+ }
+
+ switch (l3_class) {
+ case ESE_DZ_L3_CLASS_IP4:
+ case ESE_DZ_L3_CLASS_IP4_FRAG:
+ flags |= EFX_PKT_IPV4;
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_IPCKSUM_ERR)) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_IPV4_HDR_CHKSUM_ERR);
+ } else {
+ flags |= EFX_CKSUM_IPV4;
+ }
+
+ if (l4_class == ESE_DZ_L4_CLASS_TCP) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV4);
+ flags |= EFX_PKT_TCP;
+ } else if (l4_class == ESE_DZ_L4_CLASS_UDP) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV4);
+ flags |= EFX_PKT_UDP;
+ } else {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_OTHER_IPV4);
+ }
+ break;
+
+ case ESE_DZ_L3_CLASS_IP6:
+ case ESE_DZ_L3_CLASS_IP6_FRAG:
+ flags |= EFX_PKT_IPV6;
+
+ if (l4_class == ESE_DZ_L4_CLASS_TCP) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_IPV6);
+ flags |= EFX_PKT_TCP;
+ } else if (l4_class == ESE_DZ_L4_CLASS_UDP) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_UDP_IPV6);
+ flags |= EFX_PKT_UDP;
+ } else {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_OTHER_IPV6);
+ }
+ break;
+
+ default:
+ EFX_EV_QSTAT_INCR(eep, EV_RX_NON_IP);
+ break;
+ }
+
+ if (flags & (EFX_PKT_TCP | EFX_PKT_UDP)) {
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_RX_TCPUDP_CKSUM_ERR)) {
+ EFX_EV_QSTAT_INCR(eep, EV_RX_TCP_UDP_CHKSUM_ERR);
+ } else {
+ flags |= EFX_CKSUM_TCPUDP;
+ }
+ }
+
+deliver:
+ /* If we're not discarding the packet then it is ok */
+ if (~flags & EFX_DISCARD)
+ EFX_EV_QSTAT_INCR(eep, EV_RX_OK);
+
+ EFSYS_ASSERT(eecp->eec_rx != NULL);
+ should_abort = eecp->eec_rx(arg, label, last_used_id, size, flags);
+
+ return (should_abort);
+}
+
+static __checkReturn boolean_t
+ef10_ev_tx(
+ __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 label;
+ boolean_t should_abort;
+
+ EFX_EV_QSTAT_INCR(eep, EV_TX);
+
+ /* Discard events after RXQ/TXQ errors */
+ if (enp->en_reset_flags & (EFX_RESET_RXQ_ERR | EFX_RESET_TXQ_ERR))
+ return (B_FALSE);
+
+ if (EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_DROP_EVENT) != 0) {
+ /* Drop this event */
+ return (B_FALSE);
+ }
+
+ /* Per-packet TX completion (was per-descriptor for Falcon/Siena) */
+ id = EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_DESCR_INDX);
+ label = EFX_QWORD_FIELD(*eqp, ESF_DZ_TX_QLABEL);
+
+ 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);
+}
+
+static __checkReturn boolean_t
+ef10_ev_driver(
+ __in efx_evq_t *eep,
+ __in efx_qword_t *eqp,
+ __in const efx_ev_callbacks_t *eecp,
+ __in_opt void *arg)
+{
+ unsigned int code;
+ boolean_t should_abort;
+
+ EFX_EV_QSTAT_INCR(eep, EV_DRIVER);
+ should_abort = B_FALSE;
+
+ code = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_SUB_CODE);
+ switch (code) {
+ case ESE_DZ_DRV_TIMER_EV: {
+ uint32_t id;
+
+ id = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_TMR_ID);
+
+ EFSYS_ASSERT(eecp->eec_timer != NULL);
+ should_abort = eecp->eec_timer(arg, id);
+ break;
+ }
+
+ case ESE_DZ_DRV_WAKE_UP_EV: {
+ uint32_t id;
+
+ id = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_EVQ_ID);
+
+ EFSYS_ASSERT(eecp->eec_wake_up != NULL);
+ should_abort = eecp->eec_wake_up(arg, id);
+ break;
+ }
+
+ case ESE_DZ_DRV_START_UP_EV:
+ EFSYS_ASSERT(eecp->eec_initialized != NULL);
+ should_abort = eecp->eec_initialized(arg);
+ break;
+
+ default:
+ 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));
+ break;
+ }
+
+ return (should_abort);
+}
+
+static __checkReturn boolean_t
+ef10_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);
+ should_abort = B_FALSE;
+
+ data = EFX_QWORD_FIELD(*eqp, ESF_DZ_DRV_SUB_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);
+}
+
+static __checkReturn boolean_t
+ef10_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 int code;
+ boolean_t should_abort = B_FALSE;
+
+ 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;
+
+#if EFSYS_OPT_MCDI_PROXY_AUTH
+ case MCDI_EVENT_CODE_PROXY_RESPONSE:
+ /*
+ * This event notifies a function that an authorization request
+ * has been processed. If the request was authorized then the
+ * function can now re-send the original MCDI request.
+ * See SF-113652-SW "SR-IOV Proxied Network Access Control".
+ */
+ efx_mcdi_ev_proxy_response(enp,
+ MCDI_EV_FIELD(eqp, PROXY_RESPONSE_HANDLE),
+ MCDI_EV_FIELD(eqp, PROXY_RESPONSE_RC));
+ break;
+#endif /* EFSYS_OPT_MCDI_PROXY_AUTH */
+
+ case MCDI_EVENT_CODE_LINKCHANGE: {
+ efx_link_mode_t link_mode;
+
+ ef10_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;
+ efx_rc_t rc;
+
+ /* Decode monitor stat for MCDI sensor (if supported) */
+ if ((rc = mcdi_mon_ev(enp, eqp, &id, &value)) == 0) {
+ /* Report monitor stat change */
+ 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 */
+ }
+#endif
+ break;
+ }
+
+ case MCDI_EVENT_CODE_SCHEDERR:
+ /* Informational only */
+ break;
+
+ case MCDI_EVENT_CODE_REBOOT:
+ /* Falcon/Siena only (should not been seen with Huntington). */
+ efx_mcdi_ev_death(enp, EIO);
+ break;
+
+ case MCDI_EVENT_CODE_MC_REBOOT:
+ /* MC_REBOOT event is used for Huntington (EF10) and later. */
+ 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;
+ }
+
+ case MCDI_EVENT_CODE_TX_ERR: {
+ /*
+ * After a TXQ error is detected, firmware sends a TX_ERR event.
+ * This may be followed by TX completions (which we discard),
+ * and then finally by a TX_FLUSH event. Firmware destroys the
+ * TXQ automatically after sending the TX_FLUSH event.
+ */
+ enp->en_reset_flags |= EFX_RESET_TXQ_ERR;
+
+ EFSYS_PROBE2(tx_descq_err,
+ uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
+ uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
+
+ /* Inform the driver that a reset is required. */
+ eecp->eec_exception(arg, EFX_EXCEPTION_TX_ERROR,
+ MCDI_EV_FIELD(eqp, TX_ERR_DATA));
+ break;
+ }
+
+ case MCDI_EVENT_CODE_TX_FLUSH: {
+ uint32_t txq_index = MCDI_EV_FIELD(eqp, TX_FLUSH_TXQ);
+
+ /*
+ * EF10 firmware sends two TX_FLUSH events: one to the txq's
+ * event queue, and one to evq 0 (with TX_FLUSH_TO_DRIVER set).
+ * We want to wait for all completions, so ignore the events
+ * with TX_FLUSH_TO_DRIVER.
+ */
+ if (MCDI_EV_FIELD(eqp, TX_FLUSH_TO_DRIVER) != 0) {
+ should_abort = B_FALSE;
+ break;
+ }
+
+ EFX_EV_QSTAT_INCR(eep, EV_DRIVER_TX_DESCQ_FLS_DONE);
+
+ 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 MCDI_EVENT_CODE_RX_ERR: {
+ /*
+ * After an RXQ error is detected, firmware sends an RX_ERR
+ * event. This may be followed by RX events (which we discard),
+ * and then finally by an RX_FLUSH event. Firmware destroys the
+ * RXQ automatically after sending the RX_FLUSH event.
+ */
+ enp->en_reset_flags |= EFX_RESET_RXQ_ERR;
+
+ EFSYS_PROBE2(rx_descq_err,
+ uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_1),
+ uint32_t, EFX_QWORD_FIELD(*eqp, EFX_DWORD_0));
+
+ /* Inform the driver that a reset is required. */
+ eecp->eec_exception(arg, EFX_EXCEPTION_RX_ERROR,
+ MCDI_EV_FIELD(eqp, RX_ERR_DATA));
+ break;
+ }
+
+ case MCDI_EVENT_CODE_RX_FLUSH: {
+ uint32_t rxq_index = MCDI_EV_FIELD(eqp, RX_FLUSH_RXQ);
+
+ /*
+ * EF10 firmware sends two RX_FLUSH events: one to the rxq's
+ * event queue, and one to evq 0 (with RX_FLUSH_TO_DRIVER set).
+ * We want to wait for all completions, so ignore the events
+ * with RX_FLUSH_TO_DRIVER.
+ */
+ if (MCDI_EV_FIELD(eqp, RX_FLUSH_TO_DRIVER) != 0) {
+ should_abort = B_FALSE;
+ break;
+ }
+
+ EFX_EV_QSTAT_INCR(eep, EV_DRIVER_RX_DESCQ_FLS_DONE);
+
+ EFSYS_PROBE1(rx_descq_fls_done, uint32_t, rxq_index);
+
+ EFSYS_ASSERT(eecp->eec_rxq_flush_done != NULL);
+ should_abort = eecp->eec_rxq_flush_done(arg, rxq_index);
+ break;
+ }
+
+ default:
+ 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));
+ break;
+ }
+
+ return (should_abort);
+}
+
+ void
+ef10_ev_rxlabel_init(
+ __in efx_evq_t *eep,
+ __in efx_rxq_t *erp,
+ __in unsigned int label,
+ __in boolean_t packed_stream)
+{
+ efx_evq_rxq_state_t *eersp;
+
+ EFSYS_ASSERT3U(label, <, EFX_ARRAY_SIZE(eep->ee_rxq_state));
+ eersp = &eep->ee_rxq_state[label];
+
+ EFSYS_ASSERT3U(eersp->eers_rx_mask, ==, 0);
+
+#if EFSYS_OPT_RX_PACKED_STREAM
+ /*
+ * For packed stream modes, the very first event will
+ * have a new buffer flag set, so it will be incremented,
+ * yielding the correct pointer. That results in a simpler
+ * code than trying to detect start-of-the-world condition
+ * in the event handler.
+ */
+ eersp->eers_rx_read_ptr = packed_stream ? ~0 : 0;
+#else
+ eersp->eers_rx_read_ptr = 0;
+#endif
+ eersp->eers_rx_mask = erp->er_mask;
+#if EFSYS_OPT_RX_PACKED_STREAM
+ eersp->eers_rx_stream_npackets = 0;
+ eersp->eers_rx_packed_stream = packed_stream;
+ if (packed_stream) {
+ eersp->eers_rx_packed_stream_credits = (eep->ee_mask + 1) /
+ (EFX_RX_PACKED_STREAM_MEM_PER_CREDIT /
+ EFX_RX_PACKED_STREAM_MIN_PACKET_SPACE);
+ EFSYS_ASSERT3U(eersp->eers_rx_packed_stream_credits, !=, 0);
+ /*
+ * A single credit is allocated to the queue when it is started.
+ * It is immediately spent by the first packet which has NEW
+ * BUFFER flag set, though, but still we shall take into
+ * account, as to not wrap around the maximum number of credits
+ * accidentally
+ */
+ eersp->eers_rx_packed_stream_credits--;
+ EFSYS_ASSERT3U(eersp->eers_rx_packed_stream_credits, <=,
+ EFX_RX_PACKED_STREAM_MAX_CREDITS);
+ }
+#else
+ EFSYS_ASSERT(!packed_stream);
+#endif
+}
+
+ void
+ef10_ev_rxlabel_fini(
+ __in efx_evq_t *eep,
+ __in unsigned int label)
+{
+ efx_evq_rxq_state_t *eersp;
+
+ EFSYS_ASSERT3U(label, <, EFX_ARRAY_SIZE(eep->ee_rxq_state));
+ eersp = &eep->ee_rxq_state[label];
+
+ EFSYS_ASSERT3U(eersp->eers_rx_mask, !=, 0);
+
+ eersp->eers_rx_read_ptr = 0;
+ eersp->eers_rx_mask = 0;
+#if EFSYS_OPT_RX_PACKED_STREAM
+ eersp->eers_rx_stream_npackets = 0;
+ eersp->eers_rx_packed_stream = B_FALSE;
+ eersp->eers_rx_packed_stream_credits = 0;
+#endif
+}
+
+#endif /* EFSYS_OPT_HUNTINGTON || EFSYS_OPT_MEDFORD */
Code Review / deb_dpdk.git / blobdiff