net/virtio-user: move vhost-user specific code

[dpdk.git] / drivers / net / e1000 / igb_rxtx.c

diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index a47c640..5d0d3cd 100644 (file)
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -1,7 +1,7 @@
 /*-
  *   BSD LICENSE
  *
- *   Copyright(c) 2010-2015 Intel Corporation. All rights reserved.
+ *   Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
  *   All rights reserved.
  *
  *   Redistribution and use in source and binary forms, with or without
@@ -65,6 +65,7 @@
 #include <rte_udp.h>
 #include <rte_tcp.h>
 #include <rte_sctp.h>
+#include <rte_net.h>
 #include <rte_string_fns.h>
 
 #include "e1000_logs.h"
@@ -78,6 +79,9 @@
                PKT_TX_L4_MASK |                 \
                PKT_TX_TCP_SEG)
 
+#define IGB_TX_OFFLOAD_NOTSUP_MASK \
+               (PKT_TX_OFFLOAD_MASK ^ IGB_TX_OFFLOAD_MASK)
+
 /**
  * Structure associated with each descriptor of the RX ring of a RX queue.
  */
@@ -614,6 +618,52 @@ eth_igb_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,
        return nb_tx;
 }
 
+/*********************************************************************
+ *
+ *  TX prep functions
+ *
+ **********************************************************************/
+uint16_t
+eth_igb_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];
+
+               /* Check some limitations for TSO in hardware */
+               if (m->ol_flags & PKT_TX_TCP_SEG)
+                       if ((m->tso_segsz > IGB_TSO_MAX_MSS) ||
+                                       (m->l2_len + m->l3_len + m->l4_len >
+                                       IGB_TSO_MAX_HDRLEN)) {
+                               rte_errno = -EINVAL;
+                               return i;
+                       }
+
+               if (m->ol_flags & IGB_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;
+}
+
 /*********************************************************************
  *
  *  RX functions
@@ -747,7 +797,9 @@ rx_desc_error_to_pkt_flags(uint32_t rx_status)
         */
 
        static uint64_t error_to_pkt_flags_map[4] = {
-               0,  PKT_RX_L4_CKSUM_BAD, PKT_RX_IP_CKSUM_BAD,
+               PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_GOOD,
+               PKT_RX_IP_CKSUM_GOOD | PKT_RX_L4_CKSUM_BAD,
+               PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_GOOD,
                PKT_RX_IP_CKSUM_BAD | PKT_RX_L4_CKSUM_BAD
        };
        return error_to_pkt_flags_map[(rx_status >>
@@ -1362,6 +1414,7 @@ eth_igb_tx_queue_setup(struct rte_eth_dev *dev,
 
        igb_reset_tx_queue(txq, dev);
        dev->tx_pkt_burst = eth_igb_xmit_pkts;
+       dev->tx_pkt_prepare = &eth_igb_prep_pkts;
        dev->data->tx_queues[queue_idx] = txq;
 
        return 0;
@@ -1527,7 +1580,7 @@ eth_igb_rx_queue_count(struct rte_eth_dev *dev, uint16_t rx_queue_id)
                                desc - rxq->nb_rx_desc]);
        }
 
-       return 0;
+       return desc;
 }
 
 int