X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fi40e%2Fi40e_rxtx_vec_neon.c;h=f094de69ae8dc9e2d31639b91ee632c52ff7508d;hb=876589e07ed3ce36b6390ebf41615a8a74557cca;hp=543ecadb07abf38e95b88be62ec48307029683bd;hpb=f0f5d844d138a1d6564ffe4eb0c56bf41a7cf7c3;p=dpdk.git

diff --git a/drivers/net/i40e/i40e_rxtx_vec_neon.c b/drivers/net/i40e/i40e_rxtx_vec_neon.c
index 543ecadb07..f094de69ae 100644
--- a/drivers/net/i40e/i40e_rxtx_vec_neon.c
+++ b/drivers/net/i40e/i40e_rxtx_vec_neon.c
@@ -187,11 +187,12 @@ desc_to_ptype_v(uint64x2_t descs[4], struct rte_mbuf **__rte_restrict rx_pkts,
 
 }
 
- /*
+/**
+ * vPMD raw receive routine, only accept(nb_pkts >= RTE_I40E_DESCS_PER_LOOP)
+ *
  * Notice:
  * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
- * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
- *   numbers of DD bits
+ * - floor align nb_pkts to a RTE_I40E_DESCS_PER_LOOP power-of-two
  */
 static inline uint16_t
 _recv_raw_pkts_vec(struct i40e_rx_queue *__rte_restrict rxq,
@@ -230,9 +231,6 @@ _recv_raw_pkts_vec(struct i40e_rx_queue *__rte_restrict rxq,
 		0, 0, 0       /* ignore non-length fields */
 		};
 
-	/* nb_pkts shall be less equal than RTE_I40E_MAX_RX_BURST */
-	nb_pkts = RTE_MIN(nb_pkts, RTE_I40E_MAX_RX_BURST);
-
 	/* nb_pkts has to be floor-aligned to RTE_I40E_DESCS_PER_LOOP */
 	nb_pkts = RTE_ALIGN_FLOOR(nb_pkts, RTE_I40E_DESCS_PER_LOOP);
 
@@ -439,15 +437,15 @@ i40e_recv_pkts_vec(void *__rte_restrict rx_queue,
 	return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
 }
 
- /* vPMD receive routine that reassembles scattered packets
+/**
+ * vPMD receive routine that reassembles single burst of 32 scattered packets
+ *
  * Notice:
  * - nb_pkts < RTE_I40E_DESCS_PER_LOOP, just return no packet
- * - nb_pkts > RTE_I40E_VPMD_RX_BURST, only scan RTE_I40E_VPMD_RX_BURST
- *   numbers of DD bits
  */
-uint16_t
-i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
-			     uint16_t nb_pkts)
+static uint16_t
+i40e_recv_scattered_burst_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
+			      uint16_t nb_pkts)
 {
 
 	struct i40e_rx_queue *rxq = rx_queue;
@@ -482,6 +480,32 @@ i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
 		&split_flags[i]);
 }
 
+/**
+ * vPMD receive routine that reassembles scattered packets.
+ */
+uint16_t
+i40e_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
+			     uint16_t nb_pkts)
+{
+	uint16_t retval = 0;
+
+	while (nb_pkts > RTE_I40E_VPMD_RX_BURST) {
+		uint16_t burst;
+
+		burst = i40e_recv_scattered_burst_vec(rx_queue,
+						      rx_pkts + retval,
+						      RTE_I40E_VPMD_RX_BURST);
+		retval += burst;
+		nb_pkts -= burst;
+		if (burst < RTE_I40E_VPMD_RX_BURST)
+			return retval;
+	}
+
+	return retval + i40e_recv_scattered_burst_vec(rx_queue,
+						      rx_pkts + retval,
+						      nb_pkts);
+}
+
 static inline void
 vtx1(volatile struct i40e_tx_desc *txdp,
 		struct rte_mbuf *pkt, uint64_t flags)