+
+#if EFX_OPTS_EF10() || EFSYS_OPT_SIENA
+
+#define EFX_EV_BATCH 8
+
+static void
+siena_ef10_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;
+
+ /* Ensure events codes match for EF10 (Huntington/Medford) and Siena */
+ EFX_STATIC_ASSERT(ESF_DZ_EV_CODE_LBN == FSF_AZ_EV_CODE_LBN);
+ EFX_STATIC_ASSERT(ESF_DZ_EV_CODE_WIDTH == FSF_AZ_EV_CODE_WIDTH);
+
+ EFX_STATIC_ASSERT(ESE_DZ_EV_CODE_RX_EV == FSE_AZ_EV_CODE_RX_EV);
+ EFX_STATIC_ASSERT(ESE_DZ_EV_CODE_TX_EV == FSE_AZ_EV_CODE_TX_EV);
+ EFX_STATIC_ASSERT(ESE_DZ_EV_CODE_DRIVER_EV == FSE_AZ_EV_CODE_DRIVER_EV);
+ EFX_STATIC_ASSERT(ESE_DZ_EV_CODE_DRV_GEN_EV ==
+ FSE_AZ_EV_CODE_DRV_GEN_EV);
+#if EFSYS_OPT_MCDI
+ EFX_STATIC_ASSERT(ESE_DZ_EV_CODE_MCDI_EV ==
+ FSE_AZ_EV_CODE_MCDI_EVRESPONSE);
+#endif
+
+ 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;
+
+#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);
+ switch (code) {
+ case FSE_AZ_EV_CODE_RX_EV:
+ should_abort = eep->ee_rx(eep,
+ &(ev[index]), eecp, arg);
+ break;
+ case FSE_AZ_EV_CODE_TX_EV:
+ should_abort = eep->ee_tx(eep,
+ &(ev[index]), eecp, arg);
+ break;
+ case FSE_AZ_EV_CODE_DRIVER_EV:
+ should_abort = eep->ee_driver(eep,
+ &(ev[index]), eecp, arg);
+ break;
+ case FSE_AZ_EV_CODE_DRV_GEN_EV:
+ should_abort = eep->ee_drv_gen(eep,
+ &(ev[index]), eecp, arg);
+ break;
+#if EFSYS_OPT_MCDI
+ case FSE_AZ_EV_CODE_MCDI_EVRESPONSE:
+ should_abort = eep->ee_mcdi(eep,
+ &(ev[index]), eecp, arg);
+ break;
+#endif
+ case FSE_AZ_EV_CODE_GLOBAL_EV:
+ if (eep->ee_global) {
+ should_abort = eep->ee_global(eep,
+ &(ev[index]), eecp, arg);
+ break;
+ }
+ /* else fallthrough */
+ 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;
+ }
+ 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;
+ }
+ }
+
+ /*
+ * 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;
+}
+
+#endif /* EFX_OPTS_EF10() || EFSYS_OPT_SIENA */