New upstream version 18.08
[deb_dpdk.git] / drivers / net / fm10k / fm10k_rxtx.c
index 5b2d04b..4a5b46e 100644 (file)
@@ -1,40 +1,12 @@
-/*-
- *   BSD LICENSE
- *
- *   Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
- *   All rights reserved.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2013-2016 Intel Corporation
  */
 
 #include <inttypes.h>
 
-#include <rte_ethdev.h>
+#include <rte_ethdev_driver.h>
 #include <rte_common.h>
+#include <rte_net.h>
 #include "fm10k.h"
 #include "base/fm10k_type.h"
 
@@ -65,6 +37,15 @@ static inline void dump_rxd(union fm10k_rx_desc *rxd)
 }
 #endif
 
+#define FM10K_TX_OFFLOAD_MASK (  \
+               PKT_TX_VLAN_PKT |        \
+               PKT_TX_IP_CKSUM |        \
+               PKT_TX_L4_MASK |         \
+               PKT_TX_TCP_SEG)
+
+#define FM10K_TX_OFFLOAD_NOTSUP_MASK \
+               (PKT_TX_OFFLOAD_MASK ^ FM10K_TX_OFFLOAD_MASK)
+
 /* @note: When this function is changed, make corresponding change to
  * fm10k_dev_supported_ptypes_get()
  */
@@ -96,6 +77,20 @@ rx_desc_to_ol_flags(struct rte_mbuf *m, const union fm10k_rx_desc *d)
 
        if (d->w.pkt_info & FM10K_RXD_RSSTYPE_MASK)
                m->ol_flags |= PKT_RX_RSS_HASH;
+
+       if (unlikely((d->d.staterr &
+               (FM10K_RXD_STATUS_IPCS | FM10K_RXD_STATUS_IPE)) ==
+               (FM10K_RXD_STATUS_IPCS | FM10K_RXD_STATUS_IPE)))
+               m->ol_flags |= PKT_RX_IP_CKSUM_BAD;
+       else
+               m->ol_flags |= PKT_RX_IP_CKSUM_GOOD;
+
+       if (unlikely((d->d.staterr &
+               (FM10K_RXD_STATUS_L4CS | FM10K_RXD_STATUS_L4E)) ==
+               (FM10K_RXD_STATUS_L4CS | FM10K_RXD_STATUS_L4E)))
+               m->ol_flags |= PKT_RX_L4_CKSUM_BAD;
+       else
+               m->ol_flags |= PKT_RX_L4_CKSUM_GOOD;
 }
 
 uint16_t
@@ -134,10 +129,10 @@ fm10k_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                 * Packets in fm10k device always carry at least one VLAN tag.
                 * For those packets coming in without VLAN tag,
                 * the port default VLAN tag will be used.
-                * So, always PKT_RX_VLAN_PKT flag is set and vlan_tci
+                * So, always PKT_RX_VLAN flag is set and vlan_tci
                 * is valid for each RX packet's mbuf.
                 */
-               mbuf->ol_flags |= PKT_RX_VLAN_PKT;
+               mbuf->ol_flags |= PKT_RX_VLAN;
                mbuf->vlan_tci = desc.w.vlan;
                /**
                 * mbuf->vlan_tci_outer is an idle field in fm10k driver,
@@ -174,7 +169,7 @@ fm10k_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                                        q->alloc_thresh);
 
                if (unlikely(ret != 0)) {
-                       uint8_t port = q->port_id;
+                       uint16_t port = q->port_id;
                        PMD_RX_LOG(ERR, "Failed to alloc mbuf");
                        /*
                         * Need to restore next_dd if we cannot allocate new
@@ -295,10 +290,10 @@ fm10k_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                 * Packets in fm10k device always carry at least one VLAN tag.
                 * For those packets coming in without VLAN tag,
                 * the port default VLAN tag will be used.
-                * So, always PKT_RX_VLAN_PKT flag is set and vlan_tci
+                * So, always PKT_RX_VLAN flag is set and vlan_tci
                 * is valid for each RX packet's mbuf.
                 */
-               first_seg->ol_flags |= PKT_RX_VLAN_PKT;
+               first_seg->ol_flags |= PKT_RX_VLAN;
                first_seg->vlan_tci = desc.w.vlan;
                /**
                 * mbuf->vlan_tci_outer is an idle field in fm10k driver,
@@ -332,7 +327,7 @@ fm10k_recv_scattered_pkts(void *rx_queue, struct rte_mbuf **rx_pkts,
                                        q->alloc_thresh);
 
                if (unlikely(ret != 0)) {
-                       uint8_t port = q->port_id;
+                       uint16_t port = q->port_id;
                        PMD_RX_LOG(ERR, "Failed to alloc mbuf");
                        /*
                         * Need to restore next_dd if we cannot allocate new
@@ -394,6 +389,84 @@ fm10k_dev_rx_descriptor_done(void *rx_queue, uint16_t offset)
        return ret;
 }
 
+int
+fm10k_dev_rx_descriptor_status(void *rx_queue, uint16_t offset)
+{
+       volatile union fm10k_rx_desc *rxdp;
+       struct fm10k_rx_queue *rxq = rx_queue;
+       uint16_t nb_hold, trigger_last;
+       uint16_t desc;
+       int ret;
+
+       if (unlikely(offset >= rxq->nb_desc)) {
+               PMD_DRV_LOG(ERR, "Invalid RX descriptor offset %u", offset);
+               return 0;
+       }
+
+       if (rxq->next_trigger < rxq->alloc_thresh)
+               trigger_last = rxq->next_trigger +
+                                       rxq->nb_desc - rxq->alloc_thresh;
+       else
+               trigger_last = rxq->next_trigger - rxq->alloc_thresh;
+
+       if (rxq->next_dd < trigger_last)
+               nb_hold = rxq->next_dd + rxq->nb_desc - trigger_last;
+       else
+               nb_hold = rxq->next_dd - trigger_last;
+
+       if (offset >= rxq->nb_desc - nb_hold)
+               return RTE_ETH_RX_DESC_UNAVAIL;
+
+       desc = rxq->next_dd + offset;
+       if (desc >= rxq->nb_desc)
+               desc -= rxq->nb_desc;
+
+       rxdp = &rxq->hw_ring[desc];
+
+       ret = !!(rxdp->w.status &
+                       rte_cpu_to_le_16(FM10K_RXD_STATUS_DD));
+
+       return ret;
+}
+
+int
+fm10k_dev_tx_descriptor_status(void *tx_queue, uint16_t offset)
+{
+       volatile struct fm10k_tx_desc *txdp;
+       struct fm10k_tx_queue *txq = tx_queue;
+       uint16_t desc;
+       uint16_t next_rs = txq->nb_desc;
+       struct fifo rs_tracker = txq->rs_tracker;
+       struct fifo *r = &rs_tracker;
+
+       if (unlikely(offset >= txq->nb_desc))
+               return -EINVAL;
+
+       desc = txq->next_free + offset;
+       /* go to next desc that has the RS bit */
+       desc = (desc / txq->rs_thresh + 1) *
+               txq->rs_thresh - 1;
+
+       if (desc >= txq->nb_desc) {
+               desc -= txq->nb_desc;
+               if (desc >= txq->nb_desc)
+                       desc -= txq->nb_desc;
+       }
+
+       r->head = r->list;
+       for ( ; r->head != r->endp; ) {
+               if (*r->head >= desc && *r->head < next_rs)
+                       next_rs = *r->head;
+               ++r->head;
+       }
+
+       txdp = &txq->hw_ring[next_rs];
+       if (txdp->flags & FM10K_TXD_FLAG_DONE)
+               return RTE_ETH_TX_DESC_DONE;
+
+       return RTE_ETH_TX_DESC_FULL;
+}
+
 /*
  * Free multiple TX mbuf at a time if they are in the same pool
  *
@@ -410,12 +483,12 @@ static inline void tx_free_bulk_mbuf(struct rte_mbuf **txep, int num)
        if (unlikely(num == 0))
                return;
 
-       m = __rte_pktmbuf_prefree_seg(txep[0]);
+       m = rte_pktmbuf_prefree_seg(txep[0]);
        if (likely(m != NULL)) {
                free[0] = m;
                nb_free = 1;
                for (i = 1; i < num; i++) {
-                       m = __rte_pktmbuf_prefree_seg(txep[i]);
+                       m = rte_pktmbuf_prefree_seg(txep[i]);
                        if (likely(m != NULL)) {
                                if (likely(m->pool == free[0]->pool))
                                        free[nb_free++] = m;
@@ -431,7 +504,7 @@ static inline void tx_free_bulk_mbuf(struct rte_mbuf **txep, int num)
                rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
        } else {
                for (i = 1; i < num; i++) {
-                       m = __rte_pktmbuf_prefree_seg(txep[i]);
+                       m = rte_pktmbuf_prefree_seg(txep[i]);
                        if (m != NULL)
                                rte_mempool_put(m->pool, m);
                        txep[i] = NULL;
@@ -583,3 +656,41 @@ fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
 
        return count;
 }
+
+uint16_t
+fm10k_prep_pkts(__rte_unused void *tx_queue, struct rte_mbuf **tx_pkts,
+               uint16_t nb_pkts)
+{
+       int i, ret;
+       struct rte_mbuf *m;
+
+       for (i = 0; i < nb_pkts; i++) {
+               m = tx_pkts[i];
+
+               if ((m->ol_flags & PKT_TX_TCP_SEG) &&
+                               (m->tso_segsz < FM10K_TSO_MINMSS)) {
+                       rte_errno = -EINVAL;
+                       return i;
+               }
+
+               if (m->ol_flags & FM10K_TX_OFFLOAD_NOTSUP_MASK) {
+                       rte_errno = -ENOTSUP;
+                       return i;
+               }
+
+#ifdef RTE_LIBRTE_ETHDEV_DEBUG
+               ret = rte_validate_tx_offload(m);
+               if (ret != 0) {
+                       rte_errno = ret;
+                       return i;
+               }
+#endif
+               ret = rte_net_intel_cksum_prepare(m);
+               if (ret != 0) {
+                       rte_errno = ret;
+                       return i;
+               }
+       }
+
+       return i;
+}