+#if EFSYS_OPT_RX_PACKED_STREAM || EFSYS_OPT_RX_ES_SUPER_BUFFER
+
+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 pkt_count_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;
+
+ pkt_count_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];
+
+ /*
+ * RX_DSC_PTR_LBITS has least significant bits of the global
+ * (not per-buffer) packet counter. It is guaranteed that
+ * maximum number of completed packets fits in lbits-mask.
+ * So, modulo lbits-mask arithmetic should be used to calculate
+ * packet counter increment.
+ */
+ pkt_count = (pkt_count_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 EFSYS_OPT_RX_PACKED_STREAM
+ /*
+ * If both packed stream and equal stride super-buffer
+ * modes are compiled in, in theory credits should be
+ * be maintained for packed stream only, but right now
+ * these modes are not distinguished in the event queue
+ * Rx queue state and it is OK to increment the counter
+ * regardless (it might be event cheaper than branching
+ * since neighbour structure member are updated as well).
+ */
+ eersp->eers_rx_packed_stream_credits++;
+#endif
+ 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_TRUNC_ERR) != 0) {
+ /* RX frame truncated */
+ 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)) {
+ EFX_EV_QSTAT_INCR(eep, EV_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 || EFSYS_OPT_RX_ES_SUPER_BUFFER */
+