New upstream version 17.11-rc3
[deb_dpdk.git] / drivers / net / bnxt / bnxt_rxr.c
index bee67d3..30891b7 100644 (file)
@@ -199,7 +199,7 @@ static void bnxt_tpa_start(struct bnxt_rx_queue *rxq,
        if (tpa_start1->flags2 &
            rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS2_META_FORMAT_VLAN)) {
                mbuf->vlan_tci = rte_le_to_cpu_32(tpa_start1->metadata);
-               mbuf->ol_flags |= PKT_RX_VLAN_PKT;
+               mbuf->ol_flags |= PKT_RX_VLAN;
        }
        if (likely(tpa_start1->flags2 &
                   rte_cpu_to_le_32(RX_TPA_START_CMPL_FLAGS2_L4_CS_CALC)))
@@ -219,6 +219,9 @@ static int bnxt_agg_bufs_valid(struct bnxt_cp_ring_info *cpr,
        raw_cp_cons = ADV_RAW_CMP(raw_cp_cons, agg_bufs);
        last_cp_cons = RING_CMP(cpr->cp_ring_struct, raw_cp_cons);
        agg_cmpl = (struct rx_pkt_cmpl *)&cpr->cp_desc_ring[last_cp_cons];
+       cpr->valid = FLIP_VALID(raw_cp_cons,
+                               cpr->cp_ring_struct->ring_mask,
+                               cpr->valid);
        return CMP_VALID(agg_cmpl, raw_cp_cons, cpr->cp_ring_struct);
 }
 
@@ -332,6 +335,48 @@ static inline struct rte_mbuf *bnxt_tpa_end(
        return mbuf;
 }
 
+static uint32_t
+bnxt_parse_pkt_type(struct rx_pkt_cmpl *rxcmp, struct rx_pkt_cmpl_hi *rxcmp1)
+{
+       uint32_t pkt_type = 0;
+       uint32_t t_ipcs = 0, ip = 0, ip6 = 0;
+       uint32_t tcp = 0, udp = 0, icmp = 0;
+       uint32_t vlan = 0;
+
+       vlan = !!(rxcmp1->flags2 &
+               rte_cpu_to_le_32(RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN));
+       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));
+       icmp = !!(rxcmp->flags_type &
+                 rte_cpu_to_le_16(RX_PKT_CMPL_FLAGS_ITYPE_ICMP));
+       tcp = !!(rxcmp->flags_type &
+                rte_cpu_to_le_16(RX_PKT_CMPL_FLAGS_ITYPE_TCP));
+       udp = !!(rxcmp->flags_type &
+                rte_cpu_to_le_16(RX_PKT_CMPL_FLAGS_ITYPE_UDP));
+       ip = !!(rxcmp->flags_type &
+               rte_cpu_to_le_16(RX_PKT_CMPL_FLAGS_ITYPE_IP));
+
+       pkt_type |= ((ip || tcp || udp || icmp) && !t_ipcs && !ip6) ?
+               RTE_PTYPE_L3_IPV4_EXT_UNKNOWN : 0;
+       pkt_type |= ((ip || tcp || udp || icmp) && !t_ipcs && ip6) ?
+               RTE_PTYPE_L3_IPV6_EXT_UNKNOWN : 0;
+       pkt_type |= (!t_ipcs &&  icmp) ? RTE_PTYPE_L4_ICMP : 0;
+       pkt_type |= (!t_ipcs &&  udp) ? RTE_PTYPE_L4_UDP : 0;
+       pkt_type |= (!t_ipcs &&  tcp) ? RTE_PTYPE_L4_TCP : 0;
+       pkt_type |= ((ip || tcp || udp || icmp) && t_ipcs && !ip6) ?
+               RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN : 0;
+       pkt_type |= ((ip || tcp || udp || icmp) && t_ipcs && ip6) ?
+               RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN : 0;
+       pkt_type |= (t_ipcs &&  icmp) ? RTE_PTYPE_INNER_L4_ICMP : 0;
+       pkt_type |= (t_ipcs &&  udp) ? RTE_PTYPE_INNER_L4_UDP : 0;
+       pkt_type |= (t_ipcs &&  tcp) ? RTE_PTYPE_INNER_L4_TCP : 0;
+       pkt_type |= vlan ? RTE_PTYPE_L2_ETHER_VLAN : 0;
+
+       return pkt_type;
+}
+
 static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
                            struct bnxt_rx_queue *rxq, uint32_t *raw_cons)
 {
@@ -360,13 +405,17 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
        if (!CMP_VALID(rxcmp1, tmp_raw_cons, cpr->cp_ring_struct))
                return -EBUSY;
 
+       cpr->valid = FLIP_VALID(cp_cons,
+                               cpr->cp_ring_struct->ring_mask,
+                               cpr->valid);
+
        cmp_type = CMP_TYPE(rxcmp);
-       if (cmp_type == RX_PKT_CMPL_TYPE_RX_L2_TPA_START) {
+       if (cmp_type == RX_TPA_START_CMPL_TYPE_RX_TPA_START) {
                bnxt_tpa_start(rxq, (struct rx_tpa_start_cmpl *)rxcmp,
                               (struct rx_tpa_start_cmpl_hi *)rxcmp1);
                rc = -EINVAL; /* Continue w/o new mbuf */
                goto next_rx;
-       } else if (cmp_type == RX_PKT_CMPL_TYPE_RX_L2_TPA_END) {
+       } else if (cmp_type == RX_TPA_END_CMPL_TYPE_RX_TPA_END) {
                mbuf = bnxt_tpa_end(rxq, &tmp_raw_cons,
                                   (struct rx_tpa_end_cmpl *)rxcmp,
                                   (struct rx_tpa_end_cmpl_hi *)rxcmp1);
@@ -388,10 +437,10 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
 
        cons = rxcmp->opaque;
        mbuf = bnxt_consume_rx_buf(rxr, cons);
-       rte_prefetch0(mbuf);
-
        if (mbuf == NULL)
-               return -ENOMEM;
+               return -EBUSY;
+
+       rte_prefetch0(mbuf);
 
        mbuf->nb_segs = 1;
        mbuf->next = NULL;
@@ -415,9 +464,21 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
                        (RX_PKT_CMPL_METADATA_VID_MASK |
                        RX_PKT_CMPL_METADATA_DE |
                        RX_PKT_CMPL_METADATA_PRI_MASK);
-               mbuf->ol_flags |= PKT_RX_VLAN_PKT;
+               mbuf->ol_flags |= PKT_RX_VLAN;
        }
 
+       if (likely(RX_CMP_IP_CS_OK(rxcmp1)))
+               mbuf->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
+       else
+               mbuf->ol_flags |= PKT_RX_IP_CKSUM_NONE;
+
+       if (likely(RX_CMP_L4_CS_OK(rxcmp1)))
+               mbuf->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
+       else
+               mbuf->ol_flags |= PKT_RX_L4_CKSUM_NONE;
+
+       mbuf->packet_type = bnxt_parse_pkt_type(rxcmp, rxcmp1);
+
 #ifdef BNXT_DEBUG
        if (rxcmp1->errors_v2 & RX_CMP_L2_ERRORS) {
                /* Re-install the mbuf back to the rx ring */
@@ -448,13 +509,14 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
        if (bnxt_alloc_rx_data(rxq, rxr, prod)) {
                RTE_LOG(ERR, PMD, "mbuf alloc failed with prod=0x%x\n", prod);
                rc = -ENOMEM;
+               goto rx;
        }
        rxr->rx_prod = prod;
        /*
         * All MBUFs are allocated with the same size under DPDK,
         * no optimization for rx_copy_thresh
         */
-
+rx:
        *rx_pkt = mbuf;
 
 next_rx:
@@ -476,22 +538,24 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
        struct rx_pkt_cmpl *rxcmp;
        uint16_t prod = rxr->rx_prod;
        uint16_t ag_prod = rxr->ag_prod;
+       int rc = 0;
 
        /* Handle RX burst request */
        while (1) {
-               int rc;
-
                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))
                        break;
+               cpr->valid = FLIP_VALID(cons,
+                                       cpr->cp_ring_struct->ring_mask,
+                                       cpr->valid);
 
                /* TODO: Avoid magic numbers... */
                if ((CMP_TYPE(rxcmp) & 0x30) == 0x10) {
                        rc = bnxt_rx_pkt(&rx_pkts[nb_rx_pkts], rxq, &raw_cons);
-                       if (likely(!rc))
+                       if (likely(!rc) || rc == -ENOMEM)
                                nb_rx_pkts++;
                        if (rc == -EBUSY)       /* partial completion */
                                break;
@@ -514,6 +578,30 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
        B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
        /* Ring the AGG ring DB */
        B_RX_DB(rxr->ag_doorbell, rxr->ag_prod);
+
+       /* Attempt to alloc Rx buf in case of a previous allocation failure. */
+       if (rc == -ENOMEM) {
+               int i;
+
+               for (i = prod; i <= nb_rx_pkts;
+                       i = RING_NEXT(rxr->rx_ring_struct, i)) {
+                       struct bnxt_sw_rx_bd *rx_buf = &rxr->rx_buf_ring[i];
+
+                       /* Buffer already allocated for this index. */
+                       if (rx_buf->mbuf != NULL)
+                               continue;
+
+                       /* This slot is empty. Alloc buffer for Rx */
+                       if (!bnxt_alloc_rx_data(rxq, rxr, i)) {
+                               rxr->rx_prod = i;
+                               B_RX_DB(rxr->rx_doorbell, rxr->rx_prod);
+                       } else {
+                               RTE_LOG(ERR, PMD, "Alloc  mbuf failed\n");
+                               break;
+                       }
+               }
+       }
+
        return nb_rx_pkts;
 }