common/sfc_efx/base: refine adding count action to set
[dpdk.git] / drivers / common / sfc_efx / base / rhead_ev.c
index df5e3e2..3eaed9e 100644 (file)
@@ -1,6 +1,6 @@
 /* SPDX-License-Identifier: BSD-3-Clause
  *
- * Copyright(c) 2019-2020 Xilinx, Inc.
+ * Copyright(c) 2019-2021 Xilinx, Inc.
  * Copyright(c) 2018-2019 Solarflare Communications Inc.
  */
 
  */
 #define        EFX_RHEAD_ALWAYS_INTERRUPTING_EVQ_INDEX (0)
 
+static                 boolean_t
+rhead_ev_dispatch(
+       __in            efx_evq_t *eep,
+       __in            efx_qword_t *eventp,
+       __in            const efx_ev_callbacks_t *eecp,
+       __in_opt        void *arg);
+
 static __checkReturn   boolean_t
 rhead_ev_rx_packets(
        __in            efx_evq_t *eep,
@@ -51,6 +58,22 @@ rhead_ev_ew_qpoll(
        __inout         unsigned int *countp,
        __in            const efx_ev_callbacks_t *eecp,
        __in_opt        void *arg);
+
+#if EFSYS_OPT_DESC_PROXY
+static                 boolean_t
+rhead_ev_ew_txq_desc(
+       __in            efx_evq_t *eep,
+       __in            efx_xword_t *eventp,
+       __in            const efx_ev_callbacks_t *eecp,
+       __in_opt        void *arg);
+
+static                 boolean_t
+rhead_ev_ew_virtq_desc(
+       __in            efx_evq_t *eep,
+       __in            efx_xword_t *eventp,
+       __in            const efx_ev_callbacks_t *eecp,
+       __in_opt        void *arg);
+#endif /* EFSYS_OPT_DESC_PROXY */
 #endif /* EFSYS_OPT_EV_EXTENDED_WIDTH */
 
 
@@ -79,11 +102,12 @@ rhead_ev_qcreate(
        __in            uint32_t id,
        __in            uint32_t us,
        __in            uint32_t flags,
+       __in            uint32_t irq,
        __in            efx_evq_t *eep)
 {
        const efx_nic_cfg_t *encp = efx_nic_cfg_get(enp);
        size_t desc_size;
-       uint32_t irq;
+       uint32_t target_evq = 0;
        efx_rc_t rc;
 
        _NOTE(ARGUNUSED(id))    /* buftbl id managed by MC */
@@ -108,25 +132,31 @@ rhead_ev_qcreate(
        eep->ee_drv_gen = NULL; /* FIXME */
        eep->ee_mcdi    = rhead_ev_mcdi;
 
+#if EFSYS_OPT_DESC_PROXY
+       eep->ee_ew_txq_desc     = rhead_ev_ew_txq_desc;
+       eep->ee_ew_virtq_desc   = rhead_ev_ew_virtq_desc;
+#endif /* EFSYS_OPT_DESC_PROXY */
+
        /* 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;
+               /* IRQ number is specified by caller */
        } else if (index == EFX_RHEAD_ALWAYS_INTERRUPTING_EVQ_INDEX) {
-               irq = index;
+               /* Use the first interrupt for always interrupting EvQ */
+               irq = 0;
                flags = (flags & ~EFX_EVQ_FLAGS_NOTIFY_MASK) |
                    EFX_EVQ_FLAGS_NOTIFY_INTERRUPT;
        } else {
-               irq = EFX_RHEAD_ALWAYS_INTERRUPTING_EVQ_INDEX;
+               target_evq = EFX_RHEAD_ALWAYS_INTERRUPTING_EVQ_INDEX;
        }
 
        /*
         * Interrupts may be raised for events immediately after the queue is
         * created. See bug58606.
         */
-       rc = efx_mcdi_init_evq(enp, index, esmp, ndescs, irq, us, flags,
-           B_FALSE);
+       rc = efx_mcdi_init_evq(enp, index, esmp, ndescs, irq, target_evq, us,
+           flags, B_FALSE);
        if (rc != 0)
                goto fail2;
 
@@ -181,6 +211,41 @@ rhead_ev_qpost(
        EFSYS_ASSERT(B_FALSE);
 }
 
+static __checkReturn   boolean_t
+rhead_ev_dispatch(
+       __in            efx_evq_t *eep,
+       __in            efx_qword_t *eventp,
+       __in            const efx_ev_callbacks_t *eecp,
+       __in_opt        void *arg)
+{
+       boolean_t should_abort;
+       uint32_t code;
+
+       code = EFX_QWORD_FIELD(*eventp, ESF_GZ_E_TYPE);
+       switch (code) {
+       case ESE_GZ_EF100_EV_RX_PKTS:
+               should_abort = eep->ee_rx(eep, eventp, eecp, arg);
+               break;
+       case ESE_GZ_EF100_EV_TX_COMPLETION:
+               should_abort = eep->ee_tx(eep, eventp, eecp, arg);
+               break;
+       case ESE_GZ_EF100_EV_MCDI:
+               should_abort = eep->ee_mcdi(eep, eventp, eecp, arg);
+               break;
+       default:
+               EFSYS_PROBE3(bad_event, unsigned int, eep->ee_index,
+                   uint32_t, EFX_QWORD_FIELD(*eventp, EFX_DWORD_1),
+                   uint32_t, EFX_QWORD_FIELD(*eventp, EFX_DWORD_0));
+
+               EFSYS_ASSERT(eecp->eec_exception != NULL);
+               (void) eecp->eec_exception(arg, EFX_EXCEPTION_EV_ERROR, code);
+               should_abort = B_TRUE;
+               break;
+       }
+
+       return (should_abort);
+}
+
 /*
  * Poll event queue in batches. Size of the batch is equal to cache line
  * size divided by event size.
@@ -248,37 +313,12 @@ rhead_ev_qpoll(
                /* Process the batch of events */
                for (index = 0; index < total; ++index) {
                        boolean_t should_abort;
-                       uint32_t code;
 
                        EFX_EV_QSTAT_INCR(eep, EV_ALL);
 
-                       code = EFX_QWORD_FIELD(ev[index], ESF_GZ_E_TYPE);
-                       switch (code) {
-                       case ESE_GZ_EF100_EV_RX_PKTS:
-                               should_abort = eep->ee_rx(eep,
-                                   &(ev[index]), eecp, arg);
-                               break;
-                       case ESE_GZ_EF100_EV_TX_COMPLETION:
-                               should_abort = eep->ee_tx(eep,
-                                   &(ev[index]), eecp, arg);
-                               break;
-                       case ESE_GZ_EF100_EV_MCDI:
-                               should_abort = eep->ee_mcdi(eep,
-                                   &(ev[index]), eecp, arg);
-                               break;
-                       default:
-                               EFSYS_PROBE3(bad_event,
-                                   unsigned int, eep->ee_index,
-                                   uint32_t,
-                                   EFX_QWORD_FIELD(ev[index], EFX_DWORD_1),
-                                   uint32_t,
-                                   EFX_QWORD_FIELD(ev[index], EFX_DWORD_0));
-
-                               EFSYS_ASSERT(eecp->eec_exception != NULL);
-                               (void) eecp->eec_exception(arg,
-                                       EFX_EXCEPTION_EV_ERROR, code);
-                               should_abort = B_TRUE;
-                       }
+                       should_abort =
+                           rhead_ev_dispatch(eep, &(ev[index]), eecp, arg);
+
                        if (should_abort) {
                                /* Ignore subsequent events */
                                total = index + 1;
@@ -322,6 +362,22 @@ rhead_ev_ew_dispatch(
 
        code = EFX_XWORD_FIELD(*eventp, ESF_GZ_EV_256_EV32_TYPE);
        switch (code) {
+       case ESE_GZ_EF100_EVEW_64BIT:
+               /* NOTE: ignore phase bit in encapsulated 64bit event. */
+               should_abort =
+                   rhead_ev_dispatch(eep, &eventp->ex_qword[0], eecp, arg);
+               break;
+
+#if EFSYS_OPT_DESC_PROXY
+       case ESE_GZ_EF100_EVEW_TXQ_DESC:
+               should_abort = eep->ee_ew_txq_desc(eep, eventp, eecp, arg);
+               break;
+
+       case ESE_GZ_EF100_EVEW_VIRTQ_DESC:
+               should_abort = eep->ee_ew_virtq_desc(eep, eventp, eecp, arg);
+               break;
+#endif /* EFSYS_OPT_DESC_PROXY */
+
        default:
                /* Omit currently unused reserved bits from the probe. */
                EFSYS_PROBE7(ew_bad_event, unsigned int, eep->ee_index,
@@ -566,4 +622,68 @@ rhead_ev_mcdi(
        return (ret);
 }
 
+#if EFSYS_OPT_DESC_PROXY
+static                 boolean_t
+rhead_ev_ew_txq_desc(
+       __in            efx_evq_t *eep,
+       __in            efx_xword_t *eventp,
+       __in            const efx_ev_callbacks_t *eecp,
+       __in_opt        void *arg)
+{
+       efx_oword_t txq_desc;
+       uint16_t vi_id;
+       boolean_t should_abort;
+
+       _NOTE(ARGUNUSED(eep))
+
+       vi_id = EFX_XWORD_FIELD(*eventp, ESF_GZ_EV_TXQ_DP_VI_ID);
+
+       /*
+        * NOTE: This is the raw descriptor data, and has not been converted
+        * to host endian. The handler callback must use the EFX_OWORD macros
+        * to extract the descriptor fields as host endian values.
+        */
+       txq_desc = eventp->ex_oword[0];
+
+       EFSYS_ASSERT(eecp->eec_desc_proxy_txq_desc != NULL);
+       should_abort = eecp->eec_desc_proxy_txq_desc(arg, vi_id, txq_desc);
+
+       return (should_abort);
+}
+#endif /* EFSYS_OPT_DESC_PROXY */
+
+
+#if EFSYS_OPT_DESC_PROXY
+static                 boolean_t
+rhead_ev_ew_virtq_desc(
+       __in            efx_evq_t *eep,
+       __in            efx_xword_t *eventp,
+       __in            const efx_ev_callbacks_t *eecp,
+       __in_opt        void *arg)
+{
+       efx_oword_t virtq_desc;
+       uint16_t vi_id;
+       uint16_t avail;
+       boolean_t should_abort;
+
+       _NOTE(ARGUNUSED(eep))
+
+       vi_id = EFX_XWORD_FIELD(*eventp, ESF_GZ_EV_VQ_DP_VI_ID);
+       avail = EFX_XWORD_FIELD(*eventp, ESF_GZ_EV_VQ_DP_AVAIL_ENTRY);
+
+       /*
+        * NOTE: This is the raw descriptor data, and has not been converted
+        * to host endian. The handler callback must use the EFX_OWORD macros
+        * to extract the descriptor fields as host endian values.
+        */
+       virtq_desc = eventp->ex_oword[0];
+
+       EFSYS_ASSERT(eecp->eec_desc_proxy_virtq_desc != NULL);
+       should_abort =
+           eecp->eec_desc_proxy_virtq_desc(arg, vi_id, avail, virtq_desc);
+
+       return (should_abort);
+}
+#endif /* EFSYS_OPT_DESC_PROXY */
+
 #endif /* EFSYS_OPT_RIVERHEAD */