X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fbnxt%2Fbnxt_rxr.c;h=fdbe6f71eaa89026adc5991dfee06b918bff39f9;hb=a2999c7bfe395708a6a68ebb6f3199af7d25cffe;hp=5673e2b50feab62ef294673b289e1b1282606b26;hpb=04067844a3e9a058478f50eb61e391846e167865;p=dpdk.git

diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c
index 5673e2b50f..fdbe6f71ea 100644
--- a/drivers/net/bnxt/bnxt_rxr.c
+++ b/drivers/net/bnxt/bnxt_rxr.c
@@ -150,6 +150,7 @@ static void bnxt_tpa_start(struct bnxt_rx_queue *rxq,
 	tpa_info->mbuf = mbuf;
 	tpa_info->len = rte_le_to_cpu_32(tpa_start->len);
 
+	mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 	mbuf->nb_segs = 1;
 	mbuf->next = NULL;
 	mbuf->pkt_len = rte_le_to_cpu_32(tpa_start->len);
@@ -305,7 +306,6 @@ static inline struct rte_mbuf *bnxt_tpa_end(
 	mbuf = tpa_info->mbuf;
 	RTE_ASSERT(mbuf != NULL);
 
-	rte_prefetch0(mbuf);
 	if (agg_bufs) {
 		bnxt_rx_pages(rxq, mbuf, raw_cp_cons, agg_bufs, tpa_info);
 	}
@@ -322,62 +322,177 @@ static inline struct rte_mbuf *bnxt_tpa_end(
 	return mbuf;
 }
 
+uint32_t bnxt_ptype_table[BNXT_PTYPE_TBL_DIM] __rte_cache_aligned;
+
+static void __rte_cold
+bnxt_init_ptype_table(void)
+{
+	uint32_t *pt = bnxt_ptype_table;
+	static bool initialized;
+	int ip6, tun, type;
+	uint32_t l3;
+	int i;
+
+	if (initialized)
+		return;
+
+	for (i = 0; i < BNXT_PTYPE_TBL_DIM; i++) {
+		if (i & (RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN >> 2))
+			pt[i] = RTE_PTYPE_L2_ETHER_VLAN;
+		else
+			pt[i] = RTE_PTYPE_L2_ETHER;
+
+		ip6 = i & (RX_PKT_CMPL_FLAGS2_IP_TYPE >> 7);
+		tun = i & (RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC >> 2);
+		type = (i & 0x38) << 9;
+
+		if (!tun && !ip6)
+			l3 = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
+		else if (!tun && ip6)
+			l3 = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
+		else if (tun && !ip6)
+			l3 = RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
+		else
+			l3 = RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
+
+		switch (type) {
+		case RX_PKT_CMPL_FLAGS_ITYPE_ICMP:
+			if (tun)
+				pt[i] |= l3 | RTE_PTYPE_INNER_L4_ICMP;
+			else
+				pt[i] |= l3 | RTE_PTYPE_L4_ICMP;
+			break;
+		case RX_PKT_CMPL_FLAGS_ITYPE_TCP:
+			if (tun)
+				pt[i] |= l3 | RTE_PTYPE_INNER_L4_TCP;
+			else
+				pt[i] |= l3 | RTE_PTYPE_L4_TCP;
+			break;
+		case RX_PKT_CMPL_FLAGS_ITYPE_UDP:
+			if (tun)
+				pt[i] |= l3 | RTE_PTYPE_INNER_L4_UDP;
+			else
+				pt[i] |= l3 | RTE_PTYPE_L4_UDP;
+			break;
+		case RX_PKT_CMPL_FLAGS_ITYPE_IP:
+			pt[i] |= l3;
+			break;
+		}
+	}
+	initialized = true;
+}
+
 static uint32_t
 bnxt_parse_pkt_type(struct rx_pkt_cmpl *rxcmp, struct rx_pkt_cmpl_hi *rxcmp1)
 {
-	uint32_t l3, pkt_type = 0;
-	uint32_t t_ipcs = 0, ip6 = 0, vlan = 0;
-	uint32_t flags_type;
-
-	vlan = !!(rxcmp1->flags2 &
-		rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN));
-	pkt_type |= vlan ? RTE_PTYPE_L2_ETHER_VLAN : RTE_PTYPE_L2_ETHER;
-
-	t_ipcs = !!(rxcmp1->flags2 &
-		rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC));
-	ip6 = !!(rxcmp1->flags2 &
-		 rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_IP_TYPE));
-
-	flags_type = rxcmp->flags_type &
-		rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS_ITYPE_MASK);
-
-	if (!t_ipcs && !ip6)
-		l3 = RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
-	else if (!t_ipcs && ip6)
-		l3 = RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
-	else if (t_ipcs && !ip6)
-		l3 = RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
-	else
-		l3 = RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
+	uint32_t flags_type, flags2;
+	uint8_t index;
 
-	switch (flags_type) {
-	case RTE_LE32(RX_PKT_CMPL_FLAGS_ITYPE_ICMP):
-		if (!t_ipcs)
-			pkt_type |= l3 | RTE_PTYPE_L4_ICMP;
-		else
-			pkt_type |= l3 | RTE_PTYPE_INNER_L4_ICMP;
-		break;
+	flags_type = rte_le_to_cpu_16(rxcmp->flags_type);
+	flags2 = rte_le_to_cpu_32(rxcmp1->flags2);
 
-	case RTE_LE32(RX_PKT_CMPL_FLAGS_ITYPE_TCP):
-		if (!t_ipcs)
-			pkt_type |= l3 | RTE_PTYPE_L4_TCP;
-		else
-			pkt_type |= l3 | RTE_PTYPE_INNER_L4_TCP;
-		break;
+	/*
+	 * Index format:
+	 *     bit 0: RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC
+	 *     bit 1: RX_CMPL_FLAGS2_IP_TYPE
+	 *     bit 2: RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN
+	 *     bits 3-6: RX_PKT_CMPL_FLAGS_ITYPE
+	 */
+	index = ((flags_type & RX_PKT_CMPL_FLAGS_ITYPE_MASK) >> 9) |
+		((flags2 & (RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN |
+			   RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC)) >> 2) |
+		((flags2 & RX_PKT_CMPL_FLAGS2_IP_TYPE) >> 7);
 
-	case RTE_LE32(RX_PKT_CMPL_FLAGS_ITYPE_UDP):
-		if (!t_ipcs)
-			pkt_type |= l3 | RTE_PTYPE_L4_UDP;
-		else
-			pkt_type |= l3 | RTE_PTYPE_INNER_L4_UDP;
-		break;
+	return bnxt_ptype_table[index];
+}
 
-	case RTE_LE32(RX_PKT_CMPL_FLAGS_ITYPE_IP):
-		pkt_type |= l3;
-		break;
+uint32_t
+bnxt_ol_flags_table[BNXT_OL_FLAGS_TBL_DIM] __rte_cache_aligned;
+
+uint32_t
+bnxt_ol_flags_err_table[BNXT_OL_FLAGS_ERR_TBL_DIM] __rte_cache_aligned;
+
+static void __rte_cold
+bnxt_init_ol_flags_tables(void)
+{
+	static bool initialized;
+	uint32_t *pt;
+	int i;
+
+	if (initialized)
+		return;
+
+	/* Initialize ol_flags table. */
+	pt = bnxt_ol_flags_table;
+	for (i = 0; i < BNXT_OL_FLAGS_TBL_DIM; i++) {
+		pt[i] = 0;
+		if (i & RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN)
+			pt[i] |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
+
+		if (i & RX_PKT_CMPL_FLAGS2_IP_CS_CALC)
+			pt[i] |= PKT_RX_IP_CKSUM_GOOD;
+
+		if (i & RX_PKT_CMPL_FLAGS2_L4_CS_CALC)
+			pt[i] |= PKT_RX_L4_CKSUM_GOOD;
+
+		if (i & RX_PKT_CMPL_FLAGS2_T_L4_CS_CALC)
+			pt[i] |= PKT_RX_OUTER_L4_CKSUM_GOOD;
+	}
+
+	/* Initialize checksum error table. */
+	pt = bnxt_ol_flags_err_table;
+	for (i = 0; i < BNXT_OL_FLAGS_ERR_TBL_DIM; i++) {
+		pt[i] = 0;
+		if (i & (RX_PKT_CMPL_ERRORS_IP_CS_ERROR >> 4))
+			pt[i] |= PKT_RX_IP_CKSUM_BAD;
+
+		if (i & (RX_PKT_CMPL_ERRORS_L4_CS_ERROR >> 4))
+			pt[i] |= PKT_RX_L4_CKSUM_BAD;
+
+		if (i & (RX_PKT_CMPL_ERRORS_T_IP_CS_ERROR >> 4))
+			pt[i] |= PKT_RX_EIP_CKSUM_BAD;
+
+		if (i & (RX_PKT_CMPL_ERRORS_T_L4_CS_ERROR >> 4))
+			pt[i] |= PKT_RX_OUTER_L4_CKSUM_BAD;
+	}
+
+	initialized = true;
+}
+
+static void
+bnxt_set_ol_flags(struct rx_pkt_cmpl *rxcmp, struct rx_pkt_cmpl_hi *rxcmp1,
+		  struct rte_mbuf *mbuf)
+{
+	uint16_t flags_type, errors, flags;
+	uint64_t ol_flags;
+
+	flags_type = rte_le_to_cpu_16(rxcmp->flags_type);
+
+	flags = rte_le_to_cpu_32(rxcmp1->flags2) &
+				(RX_PKT_CMPL_FLAGS2_IP_CS_CALC |
+				 RX_PKT_CMPL_FLAGS2_L4_CS_CALC |
+				 RX_PKT_CMPL_FLAGS2_T_IP_CS_CALC |
+				 RX_PKT_CMPL_FLAGS2_T_L4_CS_CALC |
+				 RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN);
+
+	errors = rte_le_to_cpu_16(rxcmp1->errors_v2) &
+				(RX_PKT_CMPL_ERRORS_IP_CS_ERROR |
+				 RX_PKT_CMPL_ERRORS_L4_CS_ERROR |
+				 RX_PKT_CMPL_ERRORS_T_IP_CS_ERROR |
+				 RX_PKT_CMPL_ERRORS_T_L4_CS_ERROR);
+	errors = (errors >> 4) & flags;
+
+	ol_flags = bnxt_ol_flags_table[flags & ~errors];
+
+	if (errors)
+		ol_flags |= bnxt_ol_flags_err_table[errors];
+
+	if (flags_type & RX_PKT_CMPL_FLAGS_RSS_VALID) {
+		mbuf->hash.rss = rte_le_to_cpu_32(rxcmp->rss_hash);
+		ol_flags |= PKT_RX_RSS_HASH;
 	}
 
-	return pkt_type;
+	mbuf->ol_flags = ol_flags;
 }
 
 #ifdef RTE_LIBRTE_IEEE1588
@@ -491,7 +606,7 @@ bnxt_ulp_set_mark_in_mbuf(struct bnxt *bp, struct rx_pkt_cmpl_hi *rxcmp1,
 			return mark_id;
 		/* Got the mark, write it to the mbuf and return */
 		mbuf->hash.fdir.hi = mark_id;
-		mbuf->udata64 = (cfa_code & 0xffffffffull) << 32;
+		*bnxt_cfa_code_dynfield(mbuf) = cfa_code & 0xffffffffull;
 		mbuf->hash.fdir.id = rxcmp1->cfa_code;
 		mbuf->ol_flags |= PKT_RX_FDIR | PKT_RX_FDIR_ID;
 		return mark_id;
@@ -557,8 +672,7 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 	int rc = 0;
 	uint8_t agg_buf = 0;
 	uint16_t cmp_type;
-	uint32_t flags2_f = 0, vfr_flag = 0, mark_id = 0;
-	uint16_t flags_type;
+	uint32_t vfr_flag = 0, mark_id = 0;
 	struct bnxt *bp = rxq->bp;
 
 	rxcmp = (struct rx_pkt_cmpl *)
@@ -619,21 +733,23 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 	if (mbuf == NULL)
 		return -EBUSY;
 
-	rte_prefetch0(mbuf);
-
 	mbuf->data_off = RTE_PKTMBUF_HEADROOM;
 	mbuf->nb_segs = 1;
 	mbuf->next = NULL;
 	mbuf->pkt_len = rxcmp->len;
 	mbuf->data_len = mbuf->pkt_len;
 	mbuf->port = rxq->port_id;
-	mbuf->ol_flags = 0;
 
-	flags_type = rte_le_to_cpu_16(rxcmp->flags_type);
-	if (flags_type & RX_PKT_CMPL_FLAGS_RSS_VALID) {
-		mbuf->hash.rss = rxcmp->rss_hash;
-		mbuf->ol_flags |= PKT_RX_RSS_HASH;
+	bnxt_set_ol_flags(rxcmp, rxcmp1, mbuf);
+
+#ifdef RTE_LIBRTE_IEEE1588
+	if (unlikely((rte_le_to_cpu_16(rxcmp->flags_type) &
+		      RX_PKT_CMPL_FLAGS_MASK) ==
+		      RX_PKT_CMPL_FLAGS_ITYPE_PTP_W_TIMESTAMP)) {
+		mbuf->ol_flags |= PKT_RX_IEEE1588_PTP | PKT_RX_IEEE1588_TMST;
+		bnxt_get_rx_ts_thor(rxq->bp, rxcmp1->reorder);
 	}
+#endif
 
 	if (BNXT_TRUFLOW_EN(bp))
 		mark_id = bnxt_ulp_set_mark_in_mbuf(rxq->bp, rxcmp1, mbuf,
@@ -641,66 +757,9 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 	else
 		bnxt_set_mark_in_mbuf(rxq->bp, rxcmp1, mbuf);
 
-#ifdef RTE_LIBRTE_IEEE1588
-	if (unlikely((flags_type & RX_PKT_CMPL_FLAGS_MASK) ==
-		     RX_PKT_CMPL_FLAGS_ITYPE_PTP_W_TIMESTAMP)) {
-		mbuf->ol_flags |= PKT_RX_IEEE1588_PTP | PKT_RX_IEEE1588_TMST;
-		bnxt_get_rx_ts_thor(rxq->bp, rxcmp1->reorder);
-	}
-#endif
 	if (agg_buf)
 		bnxt_rx_pages(rxq, mbuf, &tmp_raw_cons, agg_buf, NULL);
 
-	if (rxcmp1->flags2 & RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN) {
-		mbuf->vlan_tci = rxcmp1->metadata &
-			(RX_PKT_CMPL_METADATA_VID_MASK |
-			RX_PKT_CMPL_METADATA_DE |
-			RX_PKT_CMPL_METADATA_PRI_MASK);
-		mbuf->ol_flags |= PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED;
-	}
-
-	flags2_f = flags2_0xf(rxcmp1);
-	/* IP Checksum */
-	if (likely(IS_IP_NONTUNNEL_PKT(flags2_f))) {
-		if (unlikely(RX_CMP_IP_CS_ERROR(rxcmp1)))
-			mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
-		else if (unlikely(RX_CMP_IP_CS_UNKNOWN(rxcmp1)))
-			mbuf->ol_flags |= PKT_RX_IP_CKSUM_UNKNOWN;
-		else
-			mbuf->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
-	} else if (IS_IP_TUNNEL_PKT(flags2_f)) {
-		if (unlikely(RX_CMP_IP_OUTER_CS_ERROR(rxcmp1) ||
-			     RX_CMP_IP_CS_ERROR(rxcmp1)))
-			mbuf->ol_flags |= PKT_RX_IP_CKSUM_BAD;
-		else if (unlikely(RX_CMP_IP_CS_UNKNOWN(rxcmp1)))
-			mbuf->ol_flags |= PKT_RX_IP_CKSUM_UNKNOWN;
-		else
-			mbuf->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
-	}
-
-	/* L4 Checksum */
-	if (likely(IS_L4_NONTUNNEL_PKT(flags2_f))) {
-		if (unlikely(RX_CMP_L4_INNER_CS_ERR2(rxcmp1)))
-			mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
-		else
-			mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
-	} else if (IS_L4_TUNNEL_PKT(flags2_f)) {
-		if (unlikely(RX_CMP_L4_INNER_CS_ERR2(rxcmp1)))
-			mbuf->ol_flags |= PKT_RX_L4_CKSUM_BAD;
-		else
-			mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
-		if (unlikely(RX_CMP_L4_OUTER_CS_ERR2(rxcmp1))) {
-			mbuf->ol_flags |= PKT_RX_OUTER_L4_CKSUM_BAD;
-		} else if (unlikely(IS_L4_TUNNEL_PKT_ONLY_INNER_L4_CS
-				    (flags2_f))) {
-			mbuf->ol_flags |= PKT_RX_OUTER_L4_CKSUM_UNKNOWN;
-		} else {
-			mbuf->ol_flags |= PKT_RX_OUTER_L4_CKSUM_GOOD;
-		}
-	} else if (unlikely(RX_CMP_L4_CS_UNKNOWN(rxcmp1))) {
-		mbuf->ol_flags |= PKT_RX_L4_CKSUM_UNKNOWN;
-	}
-
 	mbuf->packet_type = bnxt_parse_pkt_type(rxcmp, rxcmp1);
 
 #ifdef BNXT_DEBUG
@@ -734,6 +793,19 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 		goto rx;
 	}
 	rxr->rx_prod = prod;
+
+	if (BNXT_TRUFLOW_EN(bp) && (BNXT_VF_IS_TRUSTED(bp) || BNXT_PF(bp)) &&
+	    vfr_flag) {
+		bnxt_vfr_recv(mark_id, rxq->queue_id, mbuf);
+		/* Now return an error so that nb_rx_pkts is not
+		 * incremented.
+		 * This packet was meant to be given to the representor.
+		 * So no need to account the packet and give it to
+		 * parent Rx burst function.
+		 */
+		rc = -ENODEV;
+		goto next_rx;
+	}
 	/*
 	 * All MBUFs are allocated with the same size under DPDK,
 	 * no optimization for rx_copy_thresh
@@ -741,20 +813,6 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 rx:
 	*rx_pkt = mbuf;
 
-	if (BNXT_TRUFLOW_EN(bp) &&
-	    (BNXT_VF_IS_TRUSTED(bp) || BNXT_PF(bp)) &&
-	    vfr_flag) {
-		if (!bnxt_vfr_recv(mark_id, rxq->queue_id, mbuf)) {
-			/* Now return an error so that nb_rx_pkts is not
-			 * incremented.
-			 * This packet was meant to be given to the representor.
-			 * So no need to account the packet and give it to
-			 * parent Rx burst function.
-			 */
-			rc = -ENODEV;
-		}
-	}
-
 next_rx:
 
 	*raw_cons = tmp_raw_cons;
@@ -782,8 +840,7 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 		return 0;
 
 	/* If Rx Q was stopped return */
-	if (unlikely(!rxq->rx_started ||
-		     !rte_spinlock_trylock(&rxq->lock)))
+	if (unlikely(!rxq->rx_started))
 		return 0;
 
 #if defined(RTE_ARCH_X86) || defined(RTE_ARCH_ARM64)
@@ -807,7 +864,6 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 	/* Handle RX burst request */
 	while (1) {
 		cons = RING_CMP(cpr->cp_ring_struct, raw_cons);
-		rte_prefetch0(&cpr->cp_desc_ring[cons]);
 		rxcmp = (struct rx_pkt_cmpl *)&cpr->cp_desc_ring[cons];
 
 		if (!CMP_VALID(rxcmp, raw_cons, cpr->cp_ring_struct))
@@ -870,7 +926,7 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 			struct rte_mbuf **rx_buf = &rxr->rx_buf_ring[i];
 
 			/* Buffer already allocated for this index. */
-			if (*rx_buf != NULL)
+			if (*rx_buf != NULL && *rx_buf != &rxq->fake_mbuf)
 				continue;
 
 			/* This slot is empty. Alloc buffer for Rx */
@@ -885,8 +941,6 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
 	}
 
 done:
-	rte_spinlock_unlock(&rxq->lock);
-
 	return nb_rx_pkts;
 }
 
@@ -964,7 +1018,11 @@ int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id)
 	ring->ring_mask = ring->ring_size - 1;
 	ring->bd = (void *)rxr->rx_desc_ring;
 	ring->bd_dma = rxr->rx_desc_mapping;
-	ring->vmem_size = ring->ring_size * sizeof(struct rte_mbuf *);
+
+	/* Allocate extra rx ring entries for vector rx. */
+	ring->vmem_size = sizeof(struct rte_mbuf *) *
+				(ring->ring_size + RTE_BNXT_DESCS_PER_LOOP);
+
 	ring->vmem = (void **)&rxr->rx_buf_ring;
 	ring->fw_ring_id = INVALID_HW_RING_ID;
 
@@ -1046,6 +1104,12 @@ int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq)
 	unsigned int i;
 	uint16_t size;
 
+	/* Initialize packet type table. */
+	bnxt_init_ptype_table();
+
+	/* Initialize offload flags parsing table. */
+	bnxt_init_ol_flags_tables();
+
 	size = rte_pktmbuf_data_room_size(rxq->mb_pool) - RTE_PKTMBUF_HEADROOM;
 	size = RTE_MIN(BNXT_MAX_PKT_LEN, size);
 
@@ -1069,6 +1133,12 @@ int bnxt_init_one_rx_ring(struct bnxt_rx_queue *rxq)
 		prod = RING_NEXT(rxr->rx_ring_struct, prod);
 	}
 
+	/* Initialize dummy mbuf pointers for vector mode rx. */
+	for (i = ring->ring_size;
+	     i < ring->ring_size + RTE_BNXT_DESCS_PER_LOOP; i++) {
+		rxr->rx_buf_ring[i] = &rxq->fake_mbuf;
+	}
+
 	ring = rxr->ag_ring_struct;
 	type = RX_PROD_AGG_BD_TYPE_RX_PROD_AGG;
 	bnxt_init_rxbds(ring, type, size);