net/cxgbe: support Source MAC Table
[dpdk.git] / drivers / net / sfc / base / efx_ev.c
index 59f4d02..b9fc5ca 100644 (file)
@@ -1,37 +1,14 @@
-/*
- * Copyright (c) 2007-2016 Solarflare Communications Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- *    this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- *    this list of conditions and the following disclaimer in the documentation
- *    and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
- * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
- * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
- * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
- * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
- * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
- * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
- * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
  *
- * 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.
+ * Copyright (c) 2007-2018 Solarflare Communications Inc.
+ * All rights reserved.
  */
 
 #include "efx.h"
 #include "efx_impl.h"
-
-#define        EFX_EV_QSTAT_INCR(_eep, _stat)
+#if EFSYS_OPT_MON_MCDI
+#include "mcdi_mon.h"
+#endif
 
 #define        EFX_EV_PRESENT(_qword)                                          \
        (EFX_QWORD_FIELD((_qword), EFX_DWORD_0) != 0xffffffff &&        \
@@ -54,7 +31,7 @@ siena_ev_qcreate(
        __in            efx_nic_t *enp,
        __in            unsigned int index,
        __in            efsys_mem_t *esmp,
-       __in            size_t n,
+       __in            size_t ndescs,
        __in            uint32_t id,
        __in            uint32_t us,
        __in            uint32_t flags,
@@ -79,6 +56,14 @@ siena_ev_qmoderate(
        __in            efx_evq_t *eep,
        __in            unsigned int us);
 
+#if EFSYS_OPT_QSTATS
+static                 void
+siena_ev_qstats_update(
+       __in                            efx_evq_t *eep,
+       __inout_ecount(EV_NQSTATS)      efsys_stat_t *stat);
+
+#endif
+
 #endif /* EFSYS_OPT_SIENA */
 
 #if EFSYS_OPT_SIENA
@@ -90,9 +75,27 @@ static const efx_ev_ops_t    __efx_ev_siena_ops = {
        siena_ev_qprime,                        /* eevo_qprime */
        siena_ev_qpost,                         /* eevo_qpost */
        siena_ev_qmoderate,                     /* eevo_qmoderate */
+#if EFSYS_OPT_QSTATS
+       siena_ev_qstats_update,                 /* eevo_qstats_update */
+#endif
 };
 #endif /* EFSYS_OPT_SIENA */
 
+#if EFX_OPTS_EF10()
+static const efx_ev_ops_t      __efx_ev_ef10_ops = {
+       ef10_ev_init,                           /* eevo_init */
+       ef10_ev_fini,                           /* eevo_fini */
+       ef10_ev_qcreate,                        /* eevo_qcreate */
+       ef10_ev_qdestroy,                       /* eevo_qdestroy */
+       ef10_ev_qprime,                         /* eevo_qprime */
+       ef10_ev_qpost,                          /* eevo_qpost */
+       ef10_ev_qmoderate,                      /* eevo_qmoderate */
+#if EFSYS_OPT_QSTATS
+       ef10_ev_qstats_update,                  /* eevo_qstats_update */
+#endif
+};
+#endif /* EFX_OPTS_EF10() */
+
 
        __checkReturn   efx_rc_t
 efx_ev_init(
@@ -116,6 +119,24 @@ efx_ev_init(
                break;
 #endif /* EFSYS_OPT_SIENA */
 
+#if EFSYS_OPT_HUNTINGTON
+       case EFX_FAMILY_HUNTINGTON:
+               eevop = &__efx_ev_ef10_ops;
+               break;
+#endif /* EFSYS_OPT_HUNTINGTON */
+
+#if EFSYS_OPT_MEDFORD
+       case EFX_FAMILY_MEDFORD:
+               eevop = &__efx_ev_ef10_ops;
+               break;
+#endif /* EFSYS_OPT_MEDFORD */
+
+#if EFSYS_OPT_MEDFORD2
+       case EFX_FAMILY_MEDFORD2:
+               eevop = &__efx_ev_ef10_ops;
+               break;
+#endif /* EFSYS_OPT_MEDFORD2 */
+
        default:
                EFSYS_ASSERT(0);
                rc = ENOTSUP;
@@ -142,6 +163,24 @@ fail1:
        return (rc);
 }
 
+       __checkReturn   size_t
+efx_evq_size(
+       __in    const efx_nic_t *enp,
+       __in    unsigned int ndescs)
+{
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp);
+
+       return (ndescs * encp->enc_ev_desc_size);
+}
+
+       __checkReturn   unsigned int
+efx_evq_nbufs(
+       __in    const efx_nic_t *enp,
+       __in    unsigned int ndescs)
+{
+       return (EFX_DIV_ROUND_UP(efx_evq_size(enp, ndescs), EFX_BUF_SIZE));
+}
+
                void
 efx_ev_fini(
        __in    efx_nic_t *enp)
@@ -167,21 +206,22 @@ efx_ev_qcreate(
        __in            efx_nic_t *enp,
        __in            unsigned int index,
        __in            efsys_mem_t *esmp,
-       __in            size_t n,
+       __in            size_t ndescs,
        __in            uint32_t id,
        __in            uint32_t us,
        __in            uint32_t flags,
        __deref_out     efx_evq_t **eepp)
 {
        const efx_ev_ops_t *eevop = enp->en_eevop;
-       efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
        efx_evq_t *eep;
+       const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp);
        efx_rc_t 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);
+       EFSYS_ASSERT3U(enp->en_ev_qcount + 1, <,
+           enp->en_nic_cfg.enc_evq_limit);
 
        switch (flags & EFX_EVQ_FLAGS_NOTIFY_MASK) {
        case EFX_EVQ_FLAGS_NOTIFY_INTERRUPT:
@@ -197,17 +237,27 @@ efx_ev_qcreate(
                goto fail2;
        }
 
+       EFSYS_ASSERT(ISP2(encp->enc_evq_max_nevs));
+       EFSYS_ASSERT(ISP2(encp->enc_evq_min_nevs));
+
+       if (!ISP2(ndescs) ||
+           ndescs < encp->enc_evq_min_nevs ||
+           ndescs > encp->enc_evq_max_nevs) {
+               rc = EINVAL;
+               goto fail3;
+       }
+
        /* Allocate an EVQ object */
        EFSYS_KMEM_ALLOC(enp->en_esip, sizeof (efx_evq_t), eep);
        if (eep == NULL) {
                rc = ENOMEM;
-               goto fail3;
+               goto fail4;
        }
 
        eep->ee_magic = EFX_EVQ_MAGIC;
        eep->ee_enp = enp;
        eep->ee_index = index;
-       eep->ee_mask = n - 1;
+       eep->ee_mask = ndescs - 1;
        eep->ee_flags = flags;
        eep->ee_esmp = esmp;
 
@@ -222,18 +272,20 @@ efx_ev_qcreate(
        enp->en_ev_qcount++;
        *eepp = eep;
 
-       if ((rc = eevop->eevo_qcreate(enp, index, esmp, n, id, us, flags,
+       if ((rc = eevop->eevo_qcreate(enp, index, esmp, ndescs, id, us, flags,
            eep)) != 0)
-               goto fail4;
+               goto fail5;
 
        return (0);
 
-fail4:
-       EFSYS_PROBE(fail4);
+fail5:
+       EFSYS_PROBE(fail5);
 
        *eepp = NULL;
        enp->en_ev_qcount--;
        EFSYS_KMEM_FREE(enp->en_esip, sizeof (efx_evq_t), eep);
+fail4:
+       EFSYS_PROBE(fail4);
 fail3:
        EFSYS_PROBE(fail3);
 fail2:
@@ -305,6 +357,23 @@ efx_ev_qpending(
        return (EFX_EV_PRESENT(qword));
 }
 
+#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
 
                        void
@@ -357,11 +426,32 @@ efx_ev_qpoll(
                        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;
 
+#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);
@@ -411,6 +501,14 @@ efx_ev_qpoll(
                        if (should_abort) {
                                /* Ignore subsequent events */
                                total = index + 1;
+
+                               /*
+                                * Poison batch to ensure the outer
+                                * loop is broken out of.
+                                */
+                               EFSYS_ASSERT(batch <= EFX_EV_BATCH);
+                               batch += (EFX_EV_BATCH << 1);
+                               EFSYS_ASSERT(total != batch);
                                break;
                        }
                }
@@ -458,6 +556,12 @@ efx_ev_usecs_to_ticks(
 {
        efx_nic_cfg_t *encp = &(enp->en_nic_cfg);
        unsigned int ticks;
+       efx_rc_t rc;
+
+       if (encp->enc_evq_timer_quantum_ns == 0) {
+               rc = ENOTSUP;
+               goto fail1;
+       }
 
        /* Convert microseconds to a timer tick count */
        if (us == 0)
@@ -469,6 +573,10 @@ efx_ev_usecs_to_ticks(
 
        *ticksp = ticks;
        return (0);
+
+fail1:
+       EFSYS_PROBE1(fail1, efx_rc_t, rc);
+       return (rc);
 }
 
        __checkReturn   efx_rc_t
@@ -500,6 +608,22 @@ fail1:
        return (rc);
 }
 
+#if EFSYS_OPT_QSTATS
+                                       void
+efx_ev_qstats_update(
+       __in                            efx_evq_t *eep,
+       __inout_ecount(EV_NQSTATS)      efsys_stat_t *stat)
+
+{      efx_nic_t *enp = eep->ee_enp;
+       const efx_ev_ops_t *eevop = enp->en_eevop;
+
+       EFSYS_ASSERT3U(eep->ee_magic, ==, EFX_EVQ_MAGIC);
+
+       eevop->eevo_qstats_update(eep, stat);
+}
+
+#endif /* EFSYS_OPT_QSTATS */
+
 #if EFSYS_OPT_SIENA
 
 static __checkReturn   efx_rc_t
@@ -546,6 +670,22 @@ siena_ev_rx_not_ok(
                EFX_EV_QSTAT_INCR(eep, EV_RX_FRM_TRUNC);
                (*flagsp) |= EFX_DISCARD;
 
+#if 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_SCATTER */
        }
 
        if (EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_ETH_CRC_ERR) != 0) {
@@ -605,6 +745,10 @@ siena_ev_rx(
        uint32_t size;
        uint32_t label;
        boolean_t ok;
+#if EFSYS_OPT_RX_SCATTER
+       boolean_t sop;
+       boolean_t jumbo_cont;
+#endif /* EFSYS_OPT_RX_SCATTER */
        uint32_t hdr_type;
        boolean_t is_v6;
        uint16_t flags;
@@ -619,6 +763,11 @@ siena_ev_rx(
        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_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_SCATTER */
+
        hdr_type = EFX_QWORD_FIELD(*eqp, FSF_AZ_RX_EV_HDR_TYPE);
 
        is_v6 = (EFX_QWORD_FIELD(*eqp, FSF_CZ_RX_EV_IPV6_PKT) != 0);
@@ -671,6 +820,14 @@ siena_ev_rx(
                break;
        }
 
+#if EFSYS_OPT_RX_SCATTER
+       /* 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 */
+
        /* Detect errors included in the FSF_AZ_RX_EV_PKT_OK indication */
        if (!ok) {
                ignore = siena_ev_rx_not_ok(eep, eqp, label, id, &flags);
@@ -967,6 +1124,9 @@ siena_ev_mcdi(
 
        EFSYS_ASSERT(eecp->eec_link_change != NULL);
        EFSYS_ASSERT(eecp->eec_exception != NULL);
+#if EFSYS_OPT_MON_STATS
+       EFSYS_ASSERT(eecp->eec_monitor != NULL);
+#endif
 
        EFX_EV_QSTAT_INCR(eep, EV_MCDI_RESPONSE);
 
@@ -991,7 +1151,22 @@ siena_ev_mcdi(
                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;
+
+               if ((rc = mcdi_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:
@@ -1003,6 +1178,12 @@ siena_ev_mcdi(
                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: {
@@ -1121,7 +1302,7 @@ siena_ev_qcreate(
        __in            efx_nic_t *enp,
        __in            unsigned int index,
        __in            efsys_mem_t *esmp,
-       __in            size_t n,
+       __in            size_t ndescs,
        __in            uint32_t id,
        __in            uint32_t us,
        __in            uint32_t flags,
@@ -1135,24 +1316,25 @@ siena_ev_qcreate(
 
        _NOTE(ARGUNUSED(esmp))
 
-       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)) {
+       if (index >= encp->enc_evq_limit) {
                rc = EINVAL;
                goto fail1;
        }
-       if (index >= encp->enc_evq_limit) {
+#if EFSYS_OPT_RX_SCALE
+       if (enp->en_intr.ei_type == EFX_INTR_LINE &&
+           index >= EFX_MAXRSS_LEGACY) {
                rc = EINVAL;
                goto fail2;
        }
-       for (size = 0; (1 << size) <= (EFX_EVQ_MAXNEVS / EFX_EVQ_MINNEVS);
+#endif
+       for (size = 0;
+           (1U << size) <= encp->enc_evq_max_nevs / encp->enc_evq_min_nevs;
            size++)
-               if ((1 << size) == (int)(n / EFX_EVQ_MINNEVS))
+               if ((1U << size) == (uint32_t)ndescs / encp->enc_evq_min_nevs)
                        break;
        if (id + (1 << size) >= encp->enc_buftbl_limit) {
                rc = EINVAL;
-               goto fail4;
+               goto fail3;
        }
 
        /* Set up the handler table */
@@ -1184,10 +1366,12 @@ siena_ev_qcreate(
 
        return (0);
 
-fail4:
-       EFSYS_PROBE(fail4);
+fail3:
+       EFSYS_PROBE(fail3);
+#if EFSYS_OPT_RX_SCALE
 fail2:
        EFSYS_PROBE(fail2);
+#endif
 fail1:
        EFSYS_PROBE1(fail1, efx_rc_t, rc);
 
@@ -1196,8 +1380,85 @@ fail1:
 
 #endif /* EFSYS_OPT_SIENA */
 
+#if EFSYS_OPT_QSTATS
+#if EFSYS_OPT_NAMES
+/* START MKCONFIG GENERATED EfxEventQueueStatNamesBlock ac223f7134058b4f */
+static const char * const __efx_ev_qstat_name[] = {
+       "all",
+       "rx",
+       "rx_ok",
+       "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_batch",
+       "tx",
+       "tx_wq_ff_full",
+       "tx_pkt_err",
+       "tx_pkt_too_big",
+       "tx_unexpected",
+       "global",
+       "global_mnt",
+       "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",
+       "rx_parse_incomplete",
+};
+/* END MKCONFIG GENERATED EfxEventQueueStatNamesBlock */
+
+               const char *
+efx_ev_qstat_name(
+       __in    efx_nic_t *enp,
+       __in    unsigned int id)
+{
+       _NOTE(ARGUNUSED(enp))
+
+       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_SIENA
 
+#if EFSYS_OPT_QSTATS
+static                                 void
+siena_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 */
+
 static         void
 siena_ev_qdestroy(
        __in    efx_evq_t *eep)