net/ixgbe: extract non-x86 specific code from vector driver
authorJianbo Liu <jianbo.liu@linaro.org>
Fri, 6 May 2016 06:25:45 +0000 (11:55 +0530)
committerBruce Richardson <bruce.richardson@intel.com>
Wed, 15 Jun 2016 15:13:54 +0000 (17:13 +0200)
move scalar code which does not use x86 intrinsic functions to new file
"ixgbe_rxtx_vec_common.h", while keeping x86 code in ixgbe_rxtx_vec.c.
This allows the scalar code to to be shared among vector drivers for
different platforms.

Suggested-by: Bruce Richardson <bruce.richardson@intel.com>
Signed-off-by: Jianbo Liu <jianbo.liu@linaro.org>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
drivers/net/ixgbe/ixgbe_rxtx_vec.c
drivers/net/ixgbe/ixgbe_rxtx_vec_common.h [new file with mode: 0644]

index 12190d2..4f95deb 100644 (file)
@@ -37,6 +37,7 @@
 
 #include "ixgbe_ethdev.h"
 #include "ixgbe_rxtx.h"
+#include "ixgbe_rxtx_vec_common.h"
 
 #include <tmmintrin.h>
 
@@ -431,69 +432,6 @@ ixgbe_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,
        return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);
 }
 
-static inline uint16_t
-reassemble_packets(struct ixgbe_rx_queue *rxq, struct rte_mbuf **rx_bufs,
-                  uint16_t nb_bufs, uint8_t *split_flags)
-{
-       struct rte_mbuf *pkts[nb_bufs]; /*finished pkts*/
-       struct rte_mbuf *start = rxq->pkt_first_seg;
-       struct rte_mbuf *end =  rxq->pkt_last_seg;
-       unsigned int pkt_idx, buf_idx;
-
-       for (buf_idx = 0, pkt_idx = 0; buf_idx < nb_bufs; buf_idx++) {
-               if (end != NULL) {
-                       /* processing a split packet */
-                       end->next = rx_bufs[buf_idx];
-                       rx_bufs[buf_idx]->data_len += rxq->crc_len;
-
-                       start->nb_segs++;
-                       start->pkt_len += rx_bufs[buf_idx]->data_len;
-                       end = end->next;
-
-                       if (!split_flags[buf_idx]) {
-                               /* it's the last packet of the set */
-                               start->hash = end->hash;
-                               start->ol_flags = end->ol_flags;
-                               /* we need to strip crc for the whole packet */
-                               start->pkt_len -= rxq->crc_len;
-                               if (end->data_len > rxq->crc_len)
-                                       end->data_len -= rxq->crc_len;
-                               else {
-                                       /* free up last mbuf */
-                                       struct rte_mbuf *secondlast = start;
-
-                                       start->nb_segs--;
-                                       while (secondlast->next != end)
-                                               secondlast = secondlast->next;
-                                       secondlast->data_len -= (rxq->crc_len -
-                                                       end->data_len);
-                                       secondlast->next = NULL;
-                                       rte_pktmbuf_free_seg(end);
-                                       end = secondlast;
-                               }
-                               pkts[pkt_idx++] = start;
-                               start = end = NULL;
-                       }
-               } else {
-                       /* not processing a split packet */
-                       if (!split_flags[buf_idx]) {
-                               /* not a split packet, save and skip */
-                               pkts[pkt_idx++] = rx_bufs[buf_idx];
-                               continue;
-                       }
-                       end = start = rx_bufs[buf_idx];
-                       rx_bufs[buf_idx]->data_len += rxq->crc_len;
-                       rx_bufs[buf_idx]->pkt_len += rxq->crc_len;
-               }
-       }
-
-       /* save the partial packet for next time */
-       rxq->pkt_first_seg = start;
-       rxq->pkt_last_seg = end;
-       memcpy(rx_bufs, pkts, pkt_idx * (sizeof(*pkts)));
-       return pkt_idx;
-}
-
 /*
  * vPMD receive routine that reassembles scattered packets
  *
@@ -557,73 +495,6 @@ vtx(volatile union ixgbe_adv_tx_desc *txdp,
                vtx1(txdp, *pkt, flags);
 }
 
-static inline int __attribute__((always_inline))
-ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
-{
-       struct ixgbe_tx_entry_v *txep;
-       uint32_t status;
-       uint32_t n;
-       uint32_t i;
-       int nb_free = 0;
-       struct rte_mbuf *m, *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ];
-
-       /* check DD bit on threshold descriptor */
-       status = txq->tx_ring[txq->tx_next_dd].wb.status;
-       if (!(status & IXGBE_ADVTXD_STAT_DD))
-               return 0;
-
-       n = txq->tx_rs_thresh;
-
-       /*
-        * first buffer to free from S/W ring is at index
-        * tx_next_dd - (tx_rs_thresh-1)
-        */
-       txep = &txq->sw_ring_v[txq->tx_next_dd - (n - 1)];
-       m = __rte_pktmbuf_prefree_seg(txep[0].mbuf);
-       if (likely(m != NULL)) {
-               free[0] = m;
-               nb_free = 1;
-               for (i = 1; i < n; i++) {
-                       m = __rte_pktmbuf_prefree_seg(txep[i].mbuf);
-                       if (likely(m != NULL)) {
-                               if (likely(m->pool == free[0]->pool))
-                                       free[nb_free++] = m;
-                               else {
-                                       rte_mempool_put_bulk(free[0]->pool,
-                                                       (void *)free, nb_free);
-                                       free[0] = m;
-                                       nb_free = 1;
-                               }
-                       }
-               }
-               rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
-       } else {
-               for (i = 1; i < n; i++) {
-                       m = __rte_pktmbuf_prefree_seg(txep[i].mbuf);
-                       if (m != NULL)
-                               rte_mempool_put(m->pool, m);
-               }
-       }
-
-       /* buffers were freed, update counters */
-       txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh);
-       txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh);
-       if (txq->tx_next_dd >= txq->nb_tx_desc)
-               txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
-
-       return txq->tx_rs_thresh;
-}
-
-static inline void __attribute__((always_inline))
-tx_backlog_entry(struct ixgbe_tx_entry_v *txep,
-                struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
-{
-       int i;
-
-       for (i = 0; i < (int)nb_pkts; ++i)
-               txep[i].mbuf = tx_pkts[i];
-}
-
 uint16_t
 ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
                       uint16_t nb_pkts)
@@ -694,92 +565,25 @@ ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
 static void __attribute__((cold))
 ixgbe_tx_queue_release_mbufs_vec(struct ixgbe_tx_queue *txq)
 {
-       unsigned int i;
-       struct ixgbe_tx_entry_v *txe;
-       const uint16_t max_desc = (uint16_t)(txq->nb_tx_desc - 1);
-
-       if (txq->sw_ring == NULL || txq->nb_tx_free == max_desc)
-               return;
-
-       /* release the used mbufs in sw_ring */
-       for (i = txq->tx_next_dd - (txq->tx_rs_thresh - 1);
-            i != txq->tx_tail;
-            i = (i + 1) & max_desc) {
-               txe = &txq->sw_ring_v[i];
-               rte_pktmbuf_free_seg(txe->mbuf);
-       }
-       txq->nb_tx_free = max_desc;
-
-       /* reset tx_entry */
-       for (i = 0; i < txq->nb_tx_desc; i++) {
-               txe = &txq->sw_ring_v[i];
-               txe->mbuf = NULL;
-       }
+       _ixgbe_tx_queue_release_mbufs_vec(txq);
 }
 
 void __attribute__((cold))
 ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq)
 {
-       const unsigned int mask = rxq->nb_rx_desc - 1;
-       unsigned int i;
-
-       if (rxq->sw_ring == NULL || rxq->rxrearm_nb >= rxq->nb_rx_desc)
-               return;
-
-       /* free all mbufs that are valid in the ring */
-       for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask)
-               rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
-       rxq->rxrearm_nb = rxq->nb_rx_desc;
-
-       /* set all entries to NULL */
-       memset(rxq->sw_ring, 0, sizeof(rxq->sw_ring[0]) * rxq->nb_rx_desc);
+       _ixgbe_rx_queue_release_mbufs_vec(rxq);
 }
 
 static void __attribute__((cold))
 ixgbe_tx_free_swring(struct ixgbe_tx_queue *txq)
 {
-       if (txq == NULL)
-               return;
-
-       if (txq->sw_ring != NULL) {
-               rte_free(txq->sw_ring_v - 1);
-               txq->sw_ring_v = NULL;
-       }
+       _ixgbe_tx_free_swring_vec(txq);
 }
 
 static void __attribute__((cold))
 ixgbe_reset_tx_queue(struct ixgbe_tx_queue *txq)
 {
-       static const union ixgbe_adv_tx_desc zeroed_desc = { { 0 } };
-       struct ixgbe_tx_entry_v *txe = txq->sw_ring_v;
-       uint16_t i;
-
-       /* Zero out HW ring memory */
-       for (i = 0; i < txq->nb_tx_desc; i++)
-               txq->tx_ring[i] = zeroed_desc;
-
-       /* Initialize SW ring entries */
-       for (i = 0; i < txq->nb_tx_desc; i++) {
-               volatile union ixgbe_adv_tx_desc *txd = &txq->tx_ring[i];
-
-               txd->wb.status = IXGBE_TXD_STAT_DD;
-               txe[i].mbuf = NULL;
-       }
-
-       txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
-       txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
-
-       txq->tx_tail = 0;
-       txq->nb_tx_used = 0;
-       /*
-        * Always allow 1 descriptor to be un-allocated to avoid
-        * a H/W race condition
-        */
-       txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
-       txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
-       txq->ctx_curr = 0;
-       memset((void *)&txq->ctx_cache, 0,
-               IXGBE_CTX_NUM * sizeof(struct ixgbe_advctx_info));
+       _ixgbe_reset_tx_queue_vec(txq);
 }
 
 static const struct ixgbe_txq_ops vec_txq_ops = {
@@ -791,63 +595,17 @@ static const struct ixgbe_txq_ops vec_txq_ops = {
 int __attribute__((cold))
 ixgbe_rxq_vec_setup(struct ixgbe_rx_queue *rxq)
 {
-       uintptr_t p;
-       struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
-
-       mb_def.nb_segs = 1;
-       mb_def.data_off = RTE_PKTMBUF_HEADROOM;
-       mb_def.port = rxq->port_id;
-       rte_mbuf_refcnt_set(&mb_def, 1);
-
-       /* prevent compiler reordering: rearm_data covers previous fields */
-       rte_compiler_barrier();
-       p = (uintptr_t)&mb_def.rearm_data;
-       rxq->mbuf_initializer = *(uint64_t *)p;
-       return 0;
+       return ixgbe_rxq_vec_setup_default(rxq);
 }
 
 int __attribute__((cold))
 ixgbe_txq_vec_setup(struct ixgbe_tx_queue *txq)
 {
-       if (txq->sw_ring_v == NULL)
-               return -1;
-
-       /* leave the first one for overflow */
-       txq->sw_ring_v = txq->sw_ring_v + 1;
-       txq->ops = &vec_txq_ops;
-
-       return 0;
+       return ixgbe_txq_vec_setup_default(txq, &vec_txq_ops);
 }
 
 int __attribute__((cold))
 ixgbe_rx_vec_dev_conf_condition_check(struct rte_eth_dev *dev)
 {
-#ifndef RTE_LIBRTE_IEEE1588
-       struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
-       struct rte_fdir_conf *fconf = &dev->data->dev_conf.fdir_conf;
-
-#ifndef RTE_IXGBE_RX_OLFLAGS_ENABLE
-       /* whithout rx ol_flags, no VP flag report */
-       if (rxmode->hw_vlan_strip != 0 ||
-           rxmode->hw_vlan_extend != 0)
-               return -1;
-#endif
-
-       /* no fdir support */
-       if (fconf->mode != RTE_FDIR_MODE_NONE)
-               return -1;
-
-       /*
-        * - no csum error report support
-        * - no header split support
-        */
-       if (rxmode->hw_ip_checksum == 1 ||
-           rxmode->header_split == 1)
-               return -1;
-
-       return 0;
-#else
-       RTE_SET_USED(dev);
-       return -1;
-#endif
+       return ixgbe_rx_vec_dev_conf_condition_check_default(dev);
 }
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_common.h b/drivers/net/ixgbe/ixgbe_rxtx_vec_common.h
new file mode 100644 (file)
index 0000000..e98fb9d
--- /dev/null
@@ -0,0 +1,327 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2015 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.
+ */
+
+#ifndef _IXGBE_RXTX_VEC_COMMON_H_
+#define _IXGBE_RXTX_VEC_COMMON_H_
+#include <stdint.h>
+#include <rte_ethdev.h>
+
+#include "ixgbe_ethdev.h"
+#include "ixgbe_rxtx.h"
+
+static inline uint16_t
+reassemble_packets(struct ixgbe_rx_queue *rxq, struct rte_mbuf **rx_bufs,
+                  uint16_t nb_bufs, uint8_t *split_flags)
+{
+       struct rte_mbuf *pkts[nb_bufs]; /*finished pkts*/
+       struct rte_mbuf *start = rxq->pkt_first_seg;
+       struct rte_mbuf *end =  rxq->pkt_last_seg;
+       unsigned int pkt_idx, buf_idx;
+
+       for (buf_idx = 0, pkt_idx = 0; buf_idx < nb_bufs; buf_idx++) {
+               if (end != NULL) {
+                       /* processing a split packet */
+                       end->next = rx_bufs[buf_idx];
+                       rx_bufs[buf_idx]->data_len += rxq->crc_len;
+
+                       start->nb_segs++;
+                       start->pkt_len += rx_bufs[buf_idx]->data_len;
+                       end = end->next;
+
+                       if (!split_flags[buf_idx]) {
+                               /* it's the last packet of the set */
+                               start->hash = end->hash;
+                               start->ol_flags = end->ol_flags;
+                               /* we need to strip crc for the whole packet */
+                               start->pkt_len -= rxq->crc_len;
+                               if (end->data_len > rxq->crc_len)
+                                       end->data_len -= rxq->crc_len;
+                               else {
+                                       /* free up last mbuf */
+                                       struct rte_mbuf *secondlast = start;
+
+                                       start->nb_segs--;
+                                       while (secondlast->next != end)
+                                               secondlast = secondlast->next;
+                                       secondlast->data_len -= (rxq->crc_len -
+                                                       end->data_len);
+                                       secondlast->next = NULL;
+                                       rte_pktmbuf_free_seg(end);
+                                       end = secondlast;
+                               }
+                               pkts[pkt_idx++] = start;
+                               start = end = NULL;
+                       }
+               } else {
+                       /* not processing a split packet */
+                       if (!split_flags[buf_idx]) {
+                               /* not a split packet, save and skip */
+                               pkts[pkt_idx++] = rx_bufs[buf_idx];
+                               continue;
+                       }
+                       end = start = rx_bufs[buf_idx];
+                       rx_bufs[buf_idx]->data_len += rxq->crc_len;
+                       rx_bufs[buf_idx]->pkt_len += rxq->crc_len;
+               }
+       }
+
+       /* save the partial packet for next time */
+       rxq->pkt_first_seg = start;
+       rxq->pkt_last_seg = end;
+       memcpy(rx_bufs, pkts, pkt_idx * (sizeof(*pkts)));
+       return pkt_idx;
+}
+
+static inline int __attribute__((always_inline))
+ixgbe_tx_free_bufs(struct ixgbe_tx_queue *txq)
+{
+       struct ixgbe_tx_entry_v *txep;
+       uint32_t status;
+       uint32_t n;
+       uint32_t i;
+       int nb_free = 0;
+       struct rte_mbuf *m, *free[RTE_IXGBE_TX_MAX_FREE_BUF_SZ];
+
+       /* check DD bit on threshold descriptor */
+       status = txq->tx_ring[txq->tx_next_dd].wb.status;
+       if (!(status & IXGBE_ADVTXD_STAT_DD))
+               return 0;
+
+       n = txq->tx_rs_thresh;
+
+       /*
+        * first buffer to free from S/W ring is at index
+        * tx_next_dd - (tx_rs_thresh-1)
+        */
+       txep = &txq->sw_ring_v[txq->tx_next_dd - (n - 1)];
+       m = __rte_pktmbuf_prefree_seg(txep[0].mbuf);
+       if (likely(m != NULL)) {
+               free[0] = m;
+               nb_free = 1;
+               for (i = 1; i < n; i++) {
+                       m = __rte_pktmbuf_prefree_seg(txep[i].mbuf);
+                       if (likely(m != NULL)) {
+                               if (likely(m->pool == free[0]->pool))
+                                       free[nb_free++] = m;
+                               else {
+                                       rte_mempool_put_bulk(free[0]->pool,
+                                                       (void *)free, nb_free);
+                                       free[0] = m;
+                                       nb_free = 1;
+                               }
+                       }
+               }
+               rte_mempool_put_bulk(free[0]->pool, (void **)free, nb_free);
+       } else {
+               for (i = 1; i < n; i++) {
+                       m = __rte_pktmbuf_prefree_seg(txep[i].mbuf);
+                       if (m != NULL)
+                               rte_mempool_put(m->pool, m);
+               }
+       }
+
+       /* buffers were freed, update counters */
+       txq->nb_tx_free = (uint16_t)(txq->nb_tx_free + txq->tx_rs_thresh);
+       txq->tx_next_dd = (uint16_t)(txq->tx_next_dd + txq->tx_rs_thresh);
+       if (txq->tx_next_dd >= txq->nb_tx_desc)
+               txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
+
+       return txq->tx_rs_thresh;
+}
+
+static inline void __attribute__((always_inline))
+tx_backlog_entry(struct ixgbe_tx_entry_v *txep,
+                struct rte_mbuf **tx_pkts, uint16_t nb_pkts)
+{
+       int i;
+
+       for (i = 0; i < (int)nb_pkts; ++i)
+               txep[i].mbuf = tx_pkts[i];
+}
+
+static inline void
+_ixgbe_tx_queue_release_mbufs_vec(struct ixgbe_tx_queue *txq)
+{
+       unsigned int i;
+       struct ixgbe_tx_entry_v *txe;
+       const uint16_t max_desc = (uint16_t)(txq->nb_tx_desc - 1);
+
+       if (txq->sw_ring == NULL || txq->nb_tx_free == max_desc)
+               return;
+
+       /* release the used mbufs in sw_ring */
+       for (i = txq->tx_next_dd - (txq->tx_rs_thresh - 1);
+            i != txq->tx_tail;
+            i = (i + 1) & max_desc) {
+               txe = &txq->sw_ring_v[i];
+               rte_pktmbuf_free_seg(txe->mbuf);
+       }
+       txq->nb_tx_free = max_desc;
+
+       /* reset tx_entry */
+       for (i = 0; i < txq->nb_tx_desc; i++) {
+               txe = &txq->sw_ring_v[i];
+               txe->mbuf = NULL;
+       }
+}
+
+static inline void
+_ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq)
+{
+       const unsigned int mask = rxq->nb_rx_desc - 1;
+       unsigned int i;
+
+       if (rxq->sw_ring == NULL || rxq->rxrearm_nb >= rxq->nb_rx_desc)
+               return;
+
+       /* free all mbufs that are valid in the ring */
+       for (i = rxq->rx_tail; i != rxq->rxrearm_start; i = (i + 1) & mask)
+               rte_pktmbuf_free_seg(rxq->sw_ring[i].mbuf);
+       rxq->rxrearm_nb = rxq->nb_rx_desc;
+
+       /* set all entries to NULL */
+       memset(rxq->sw_ring, 0, sizeof(rxq->sw_ring[0]) * rxq->nb_rx_desc);
+}
+
+static inline void
+_ixgbe_tx_free_swring_vec(struct ixgbe_tx_queue *txq)
+{
+       if (txq == NULL)
+               return;
+
+       if (txq->sw_ring != NULL) {
+               rte_free(txq->sw_ring_v - 1);
+               txq->sw_ring_v = NULL;
+       }
+}
+
+static inline void
+_ixgbe_reset_tx_queue_vec(struct ixgbe_tx_queue *txq)
+{
+       static const union ixgbe_adv_tx_desc zeroed_desc = { { 0 } };
+       struct ixgbe_tx_entry_v *txe = txq->sw_ring_v;
+       uint16_t i;
+
+       /* Zero out HW ring memory */
+       for (i = 0; i < txq->nb_tx_desc; i++)
+               txq->tx_ring[i] = zeroed_desc;
+
+       /* Initialize SW ring entries */
+       for (i = 0; i < txq->nb_tx_desc; i++) {
+               volatile union ixgbe_adv_tx_desc *txd = &txq->tx_ring[i];
+
+               txd->wb.status = IXGBE_TXD_STAT_DD;
+               txe[i].mbuf = NULL;
+       }
+
+       txq->tx_next_dd = (uint16_t)(txq->tx_rs_thresh - 1);
+       txq->tx_next_rs = (uint16_t)(txq->tx_rs_thresh - 1);
+
+       txq->tx_tail = 0;
+       txq->nb_tx_used = 0;
+       /*
+        * Always allow 1 descriptor to be un-allocated to avoid
+        * a H/W race condition
+        */
+       txq->last_desc_cleaned = (uint16_t)(txq->nb_tx_desc - 1);
+       txq->nb_tx_free = (uint16_t)(txq->nb_tx_desc - 1);
+       txq->ctx_curr = 0;
+       memset((void *)&txq->ctx_cache, 0,
+               IXGBE_CTX_NUM * sizeof(struct ixgbe_advctx_info));
+}
+
+static inline int
+ixgbe_rxq_vec_setup_default(struct ixgbe_rx_queue *rxq)
+{
+       uintptr_t p;
+       struct rte_mbuf mb_def = { .buf_addr = 0 }; /* zeroed mbuf */
+
+       mb_def.nb_segs = 1;
+       mb_def.data_off = RTE_PKTMBUF_HEADROOM;
+       mb_def.port = rxq->port_id;
+       rte_mbuf_refcnt_set(&mb_def, 1);
+
+       /* prevent compiler reordering: rearm_data covers previous fields */
+       rte_compiler_barrier();
+       p = (uintptr_t)&mb_def.rearm_data;
+       rxq->mbuf_initializer = *(uint64_t *)p;
+       return 0;
+}
+
+static inline int
+ixgbe_txq_vec_setup_default(struct ixgbe_tx_queue *txq,
+                           const struct ixgbe_txq_ops *txq_ops)
+{
+       if (txq->sw_ring_v == NULL)
+               return -1;
+
+       /* leave the first one for overflow */
+       txq->sw_ring_v = txq->sw_ring_v + 1;
+       txq->ops = txq_ops;
+
+       return 0;
+}
+
+static inline int
+ixgbe_rx_vec_dev_conf_condition_check_default(struct rte_eth_dev *dev)
+{
+#ifndef RTE_LIBRTE_IEEE1588
+       struct rte_eth_rxmode *rxmode = &dev->data->dev_conf.rxmode;
+       struct rte_fdir_conf *fconf = &dev->data->dev_conf.fdir_conf;
+
+#ifndef RTE_IXGBE_RX_OLFLAGS_ENABLE
+       /* whithout rx ol_flags, no VP flag report */
+       if (rxmode->hw_vlan_strip != 0 ||
+           rxmode->hw_vlan_extend != 0)
+               return -1;
+#endif
+
+       /* no fdir support */
+       if (fconf->mode != RTE_FDIR_MODE_NONE)
+               return -1;
+
+       /*
+        * - no csum error report support
+        * - no header split support
+        */
+       if (rxmode->hw_ip_checksum == 1 ||
+           rxmode->header_split == 1)
+               return -1;
+
+       return 0;
+#else
+       RTE_SET_USED(dev);
+       return -1;
+#endif
+}
+#endif