New upstream version 18.11-rc1
[deb_dpdk.git] / drivers / net / bnx2x / bnx2x_rxtx.c
index 752a5e8..ca28aac 100644 (file)
@@ -1,42 +1,19 @@
-/*
+/* SPDX-License-Identifier: BSD-3-Clause
  * Copyright (c) 2013-2015 Brocade Communications Systems, Inc.
- *
- * Copyright (c) 2015 QLogic Corporation.
+ * Copyright (c) 2015-2018 Cavium Inc.
  * All rights reserved.
- * www.qlogic.com
- *
- * See LICENSE.bnx2x_pmd for copyright and licensing details.
+ * www.cavium.com
  */
 
 #include "bnx2x.h"
 #include "bnx2x_rxtx.h"
 
-static inline struct rte_mbuf *
-bnx2x_rxmbuf_alloc(struct rte_mempool *mp)
-{
-       struct rte_mbuf *m;
-
-       m = __rte_mbuf_raw_alloc(mp);
-       __rte_mbuf_sanity_check(m, 0);
-
-       return m;
-}
-
 static const struct rte_memzone *
 ring_dma_zone_reserve(struct rte_eth_dev *dev, const char *ring_name,
                      uint16_t queue_id, uint32_t ring_size, int socket_id)
 {
-       char z_name[RTE_MEMZONE_NAMESIZE];
-       const struct rte_memzone *mz;
-
-       snprintf(z_name, sizeof(z_name), "%s_%s_%d_%d",
-                       dev->driver->pci_drv.name, ring_name, dev->data->port_id, queue_id);
-
-       mz = rte_memzone_lookup(z_name);
-       if (mz)
-               return mz;
-
-       return rte_memzone_reserve_aligned(z_name, ring_size, socket_id, 0, BNX2X_PAGE_SIZE);
+       return rte_eth_dma_zone_reserve(dev, ring_name, queue_id,
+                       ring_size, BNX2X_PAGE_SIZE, socket_id);
 }
 
 static void
@@ -70,7 +47,7 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
                       uint16_t queue_idx,
                       uint16_t nb_desc,
                       unsigned int socket_id,
-                      const struct rte_eth_rxconf *rx_conf,
+                      __rte_unused const struct rte_eth_rxconf *rx_conf,
                       struct rte_mempool *mp)
 {
        uint16_t j, idx;
@@ -81,21 +58,20 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
        struct bnx2x_softc *sc = dev->data->dev_private;
        struct bnx2x_fastpath *fp = &sc->fp[queue_idx];
        struct eth_rx_cqe_next_page *nextpg;
-       phys_addr_t *rx_bd;
-       phys_addr_t busaddr;
+       rte_iova_t *rx_bd;
+       rte_iova_t busaddr;
 
        /* First allocate the rx queue data structure */
        rxq = rte_zmalloc_socket("ethdev RX queue", sizeof(struct bnx2x_rx_queue),
                                 RTE_CACHE_LINE_SIZE, socket_id);
        if (NULL == rxq) {
-               PMD_INIT_LOG(ERR, "rte_zmalloc for rxq failed!");
+               PMD_DRV_LOG(ERR, sc, "rte_zmalloc for rxq failed!");
                return -ENOMEM;
        }
        rxq->sc = sc;
        rxq->mb_pool = mp;
        rxq->queue_id = queue_idx;
        rxq->port_id = dev->data->port_id;
-       rxq->crc_len = (uint8_t)((dev->data->dev_conf.rxmode.hw_strip_crc) ? 0 : ETHER_CRC_LEN);
 
        rxq->nb_rx_pages = 1;
        while (USABLE_RX_BD(rxq) < nb_desc)
@@ -105,13 +81,9 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
        sc->rx_ring_size = USABLE_RX_BD(rxq);
        rxq->nb_cq_pages = RCQ_BD_PAGES(rxq);
 
-       rxq->rx_free_thresh = rx_conf->rx_free_thresh ?
-               rx_conf->rx_free_thresh : DEFAULT_RX_FREE_THRESH;
-
-       PMD_INIT_LOG(DEBUG, "fp[%02d] req_bd=%u, thresh=%u, usable_bd=%lu, "
+       PMD_DRV_LOG(DEBUG, sc, "fp[%02d] req_bd=%u, usable_bd=%lu, "
                       "total_bd=%lu, rx_pages=%u, cq_pages=%u",
-                      queue_idx, nb_desc, rxq->rx_free_thresh,
-                      (unsigned long)USABLE_RX_BD(rxq),
+                      queue_idx, nb_desc, (unsigned long)USABLE_RX_BD(rxq),
                       (unsigned long)TOTAL_RX_BD(rxq), rxq->nb_rx_pages,
                       rxq->nb_cq_pages);
 
@@ -123,7 +95,7 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
                bnx2x_rx_queue_release(rxq);
                return -ENOMEM;
        }
-       fp->rx_desc_mapping = rxq->rx_ring_phys_addr = (uint64_t)dma->phys_addr;
+       fp->rx_desc_mapping = rxq->rx_ring_phys_addr = (uint64_t)dma->iova;
        rxq->rx_ring = (uint64_t*)dma->addr;
        memset((void *)rxq->rx_ring, 0, dma_size);
 
@@ -146,9 +118,8 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
        }
 
        /* Initialize software ring entries */
-       rxq->rx_mbuf_alloc = 0;
        for (idx = 0; idx < rxq->nb_rx_desc; idx = NEXT_RX_BD(idx)) {
-               mbuf = bnx2x_rxmbuf_alloc(mp);
+               mbuf = rte_mbuf_raw_alloc(mp);
                if (NULL == mbuf) {
                        PMD_RX_LOG(ERR, "RX mbuf alloc failed queue_id=%u, idx=%d",
                                   (unsigned)rxq->queue_id, idx);
@@ -156,8 +127,8 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
                        return -ENOMEM;
                }
                rxq->sw_ring[idx] = mbuf;
-               rxq->rx_ring[idx] = mbuf->buf_physaddr;
-               rxq->rx_mbuf_alloc++;
+               rxq->rx_ring[idx] =
+                       rte_cpu_to_le_64(rte_mbuf_data_iova_default(mbuf));
        }
        rxq->pkt_first_seg = NULL;
        rxq->pkt_last_seg = NULL;
@@ -171,7 +142,7 @@ bnx2x_dev_rx_queue_setup(struct rte_eth_dev *dev,
                PMD_RX_LOG(ERR, "RCQ  alloc failed");
                return -ENOMEM;
        }
-       fp->rx_comp_mapping = rxq->cq_ring_phys_addr = (uint64_t)dma->phys_addr;
+       fp->rx_comp_mapping = rxq->cq_ring_phys_addr = (uint64_t)dma->iova;
        rxq->cq_ring = (union eth_rx_cqe*)dma->addr;
 
        /* Link the CQ chain pages. */
@@ -222,40 +193,40 @@ bnx2x_xmit_pkts(void *p_txq, struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
        struct bnx2x_tx_queue *txq;
        struct bnx2x_softc *sc;
        struct bnx2x_fastpath *fp;
-       uint32_t burst, nb_tx;
-       struct rte_mbuf **m = tx_pkts;
-       int ret;
+       uint16_t nb_tx_pkts;
+       uint16_t nb_pkt_sent = 0;
+       uint32_t ret;
 
        txq = p_txq;
        sc = txq->sc;
        fp = &sc->fp[txq->queue_id];
 
-       nb_tx = nb_pkts;
-
-       do {
-               burst = RTE_MIN(nb_pkts, RTE_PMD_BNX2X_TX_MAX_BURST);
+       if ((unlikely((txq->nb_tx_desc - txq->nb_tx_avail) >
+                               txq->tx_free_thresh)))
+               bnx2x_txeof(sc, fp);
 
-               ret = bnx2x_tx_encap(txq, m, burst);
-               if (unlikely(ret)) {
-                       PMD_TX_LOG(ERR, "tx_encap failed!");
-               }
-
-               bnx2x_update_fp_sb_idx(fp);
-
-               if ((txq->nb_tx_desc - txq->nb_tx_avail) > txq->tx_free_thresh) {
-                       bnx2x_txeof(sc, fp);
-               }
+       nb_tx_pkts = RTE_MIN(nb_pkts, txq->nb_tx_avail / BDS_PER_TX_PKT);
+       if (unlikely(nb_tx_pkts == 0))
+               return 0;
 
-               if (unlikely(ret == -ENOMEM)) {
-                       break;
-               }
+       while (nb_tx_pkts--) {
+               struct rte_mbuf *m = *tx_pkts++;
+               assert(m != NULL);
+               ret = bnx2x_tx_encap(txq, m);
+               fp->tx_db.data.prod += ret;
+               nb_pkt_sent++;
+       }
 
-               m += burst;
-               nb_pkts -= burst;
+       bnx2x_update_fp_sb_idx(fp);
+       mb();
+       DOORBELL(sc, txq->queue_id, fp->tx_db.raw);
+       mb();
 
-       } while (nb_pkts);
+       if ((txq->nb_tx_desc - txq->nb_tx_avail) >
+                               txq->tx_free_thresh)
+               bnx2x_txeof(sc, fp);
 
-       return nb_tx - nb_pkts;
+       return nb_pkt_sent;
 }
 
 int
@@ -290,8 +261,10 @@ bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev,
 
        txq->tx_free_thresh = tx_conf->tx_free_thresh ?
                tx_conf->tx_free_thresh : DEFAULT_TX_FREE_THRESH;
+       txq->tx_free_thresh = min(txq->tx_free_thresh,
+                                 txq->nb_tx_desc - BDS_PER_TX_PKT);
 
-       PMD_INIT_LOG(DEBUG, "fp[%02d] req_bd=%u, thresh=%u, usable_bd=%lu, "
+       PMD_DRV_LOG(DEBUG, sc, "fp[%02d] req_bd=%u, thresh=%u, usable_bd=%lu, "
                     "total_bd=%lu, tx_pages=%u",
                     queue_idx, nb_desc, txq->tx_free_thresh,
                     (unsigned long)USABLE_TX_BD(txq),
@@ -304,7 +277,7 @@ bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev,
                bnx2x_tx_queue_release(txq);
                return -ENOMEM;
        }
-       fp->tx_desc_mapping = txq->tx_ring_phys_addr = (uint64_t)tz->phys_addr;
+       fp->tx_desc_mapping = txq->tx_ring_phys_addr = (uint64_t)tz->iova;
        txq->tx_ring = (union eth_tx_bd_types *) tz->addr;
        memset(txq->tx_ring, 0, tsize);
 
@@ -317,7 +290,7 @@ bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev,
                return -ENOMEM;
        }
 
-       /* PMD_DRV_LOG(DEBUG, "sw_ring=%p hw_ring=%p dma_addr=0x%"PRIx64,
+       /* PMD_DRV_LOG(DEBUG, sc, "sw_ring=%p hw_ring=%p dma_addr=0x%"PRIx64,
           txq->sw_ring, txq->tx_ring, txq->tx_ring_phys_addr); */
 
        /* Link TX pages */
@@ -326,7 +299,9 @@ bnx2x_dev_tx_queue_setup(struct rte_eth_dev *dev,
                busaddr = txq->tx_ring_phys_addr + BNX2X_PAGE_SIZE * (i % txq->nb_tx_pages);
                tx_n_bd->addr_hi = rte_cpu_to_le_32(U64_HI(busaddr));
                tx_n_bd->addr_lo = rte_cpu_to_le_32(U64_LO(busaddr));
-               /* PMD_DRV_LOG(DEBUG, "link tx page %lu", (TOTAL_TX_BD_PER_PAGE * i - 1)); */
+               /* PMD_DRV_LOG(DEBUG, sc, "link tx page %lu",
+                *          (TOTAL_TX_BD_PER_PAGE * i - 1));
+                */
        }
 
        txq->queue_id = queue_idx;
@@ -405,15 +380,18 @@ bnx2x_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                len = cqe_fp->pkt_len_or_gro_seg_len;
                pad = cqe_fp->placement_offset;
 
-               new_mb = bnx2x_rxmbuf_alloc(rxq->mb_pool);
+               new_mb = rte_mbuf_raw_alloc(rxq->mb_pool);
                if (unlikely(!new_mb)) {
                        PMD_RX_LOG(ERR, "mbuf alloc fail fp[%02d]", fp->index);
+                       rte_eth_devices[rxq->port_id].data->
+                                       rx_mbuf_alloc_failed++;
                        goto next_rx;
                }
 
                rx_mb = rxq->sw_ring[bd_cons];
                rxq->sw_ring[bd_cons] = new_mb;
-               rxq->rx_ring[bd_prod] = new_mb->buf_physaddr;
+               rxq->rx_ring[bd_prod] =
+                       rte_cpu_to_le_64(rte_mbuf_data_iova_default(new_mb));
 
                rx_pref = NEXT_RX_BD(bd_cons) & MAX_RX_BD(rxq);
                rte_prefetch0(rxq->sw_ring[rx_pref]);
@@ -422,12 +400,11 @@ bnx2x_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                        rte_prefetch0(&rxq->sw_ring[rx_pref]);
                }
 
-               rx_mb->data_off = pad;
+               rx_mb->data_off = pad + RTE_PKTMBUF_HEADROOM;
                rx_mb->nb_segs = 1;
                rx_mb->next = NULL;
                rx_mb->pkt_len = rx_mb->data_len = len;
                rx_mb->port = rxq->port_id;
-               rx_mb->buf_len = len + pad;
                rte_prefetch1(rte_pktmbuf_mtod(rx_mb, void *));
 
                /*
@@ -436,7 +413,7 @@ bnx2x_recv_pkts(void *p_rxq, struct rte_mbuf **rx_pkts, uint16_t nb_pkts)
                 */
                if (cqe_fp->pars_flags.flags & PARSING_FLAGS_VLAN) {
                        rx_mb->vlan_tci = cqe_fp->vlan_tag;
-                       rx_mb->ol_flags |= PKT_RX_VLAN_PKT;
+                       rx_mb->ol_flags |= PKT_RX_VLAN;
                }
 
                rx_pkts[nb_rx] = rx_mb;
@@ -475,9 +452,10 @@ bnx2x_dev_rx_init(struct rte_eth_dev *dev)
 void
 bnx2x_dev_clear_queues(struct rte_eth_dev *dev)
 {
+       struct bnx2x_softc *sc = dev->data->dev_private;
        uint8_t i;
 
-       PMD_INIT_FUNC_TRACE();
+       PMD_INIT_FUNC_TRACE(sc);
 
        for (i = 0; i < dev->data->nb_tx_queues; i++) {
                struct bnx2x_tx_queue *txq = dev->data->tx_queues[i];