net/bnxt: add multi-device infrastructure
[dpdk.git] / drivers / net / bnxt / bnxt_rxr.c
index 92102e3..039217f 100644 (file)
@@ -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;
        }
 
-       return pkt_type;
+       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;
+       }
+
+       mbuf->ol_flags = ol_flags;
 }
 
 #ifdef RTE_LIBRTE_IEEE1588
@@ -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 *)
@@ -627,13 +741,17 @@ static int bnxt_rx_pkt(struct rte_mbuf **rx_pkt,
        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 +759,9 @@ 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 +795,19 @@ 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 +815,6 @@ 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;
@@ -870,7 +930,7 @@ 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 */
@@ -938,9 +998,12 @@ void bnxt_free_rx_rings(struct bnxt *bp)
 
 int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id)
 {
+       struct rte_eth_dev *eth_dev = rxq->bp->eth_dev;
+       struct rte_eth_rxmode *rxmode;
        struct bnxt_cp_ring_info *cpr;
        struct bnxt_rx_ring_info *rxr;
        struct bnxt_ring *ring;
+       bool use_agg_ring;
 
        rxq->rx_buf_size = BNXT_MAX_PKT_LEN + sizeof(struct rte_mbuf);
 
@@ -961,7 +1024,11 @@ 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;
 
@@ -978,8 +1045,22 @@ int bnxt_init_rx_ring_struct(struct bnxt_rx_queue *rxq, unsigned int socket_id)
        if (ring == NULL)
                return -ENOMEM;
        cpr->cp_ring_struct = ring;
-       ring->ring_size = rte_align32pow2(rxr->rx_ring_struct->ring_size *
-                                         (2 + AGG_RING_SIZE_FACTOR));
+
+       rxmode = &eth_dev->data->dev_conf.rxmode;
+       use_agg_ring = (rxmode->offloads & DEV_RX_OFFLOAD_SCATTER) ||
+                      (rxmode->offloads & DEV_RX_OFFLOAD_TCP_LRO) ||
+                      (rxmode->max_rx_pkt_len >
+                        (uint32_t)(rte_pktmbuf_data_room_size(rxq->mb_pool) -
+                                   RTE_PKTMBUF_HEADROOM));
+
+       /* Allocate two completion slots per entry in desc ring. */
+       ring->ring_size = rxr->rx_ring_struct->ring_size * 2;
+
+       /* Allocate additional slots if aggregation ring is in use. */
+       if (use_agg_ring)
+               ring->ring_size *= AGG_RING_SIZE_FACTOR;
+
+       ring->ring_size = rte_align32pow2(ring->ring_size);
        ring->ring_mask = ring->ring_size - 1;
        ring->bd = (void *)cpr->cp_desc_ring;
        ring->bd_dma = cpr->cp_desc_mapping;
@@ -1029,6 +1110,12 @@ 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);
 
@@ -1052,6 +1139,12 @@ 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);