[dpdk-dev] [PATCH v2 3/5] net/ixgbe: remove limit of ixgbe_xmit_pkts_vec burst size
Zhiyong Yang
zhiyong.yang at intel.com
Fri Mar 3 12:17:29 CET 2017
To add a wrapper function to remove the limit of tx burst size and
implement the "make an best effort to transmit the pkts" policy.
The patch makes ixgbe vec function work in a consistent behavior
like ixgbe_xmit_pkts_simple and ixgbe_xmit_pkts do that.
Cc: Helin Zhang <helin.zhang at intel.com>
Cc: Konstantin Ananyev <konstantin.ananyev at intel.com>
Signed-off-by: Zhiyong Yang <zhiyong.yang at intel.com>
---
drivers/net/ixgbe/ixgbe_rxtx.c | 29 +++++++++++++++++++++++++++++
drivers/net/ixgbe/ixgbe_rxtx.h | 4 ++--
drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c | 4 ++--
drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c | 4 ++--
4 files changed, 35 insertions(+), 6 deletions(-)
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c
index 9502432..6068b11 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx.c
@@ -111,6 +111,11 @@
#define rte_ixgbe_prefetch(p) do {} while (0)
#endif
+#ifdef RTE_IXGBE_INC_VECTOR
+uint16_t ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
+#endif
+
/*********************************************************************
*
* TX functions
@@ -363,6 +368,30 @@ ixgbe_xmit_pkts_simple(void *tx_queue, struct rte_mbuf **tx_pkts,
return nb_tx;
}
+#ifdef RTE_IXGBE_INC_VECTOR
+static uint16_t
+ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
+{
+ uint16_t nb_tx = 0;
+ struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
+
+ while (nb_pkts) {
+ uint16_t ret, num;
+
+ num = (uint16_t)RTE_MIN(nb_pkts, txq->tx_rs_thresh);
+ ret = ixgbe_xmit_fixed_burst_vec(tx_queue, &tx_pkts[nb_tx],
+ num);
+ nb_tx += ret;
+ nb_pkts -= ret;
+ if (ret < num)
+ break;
+ }
+
+ return nb_tx;
+}
+#endif
+
static inline void
ixgbe_set_xmit_ctx(struct ixgbe_tx_queue *txq,
volatile struct ixgbe_adv_tx_context_desc *ctx_txd,
diff --git a/drivers/net/ixgbe/ixgbe_rxtx.h b/drivers/net/ixgbe/ixgbe_rxtx.h
index 739fd19..1ffab4c 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx.h
+++ b/drivers/net/ixgbe/ixgbe_rxtx.h
@@ -311,8 +311,8 @@ void ixgbe_rx_queue_release_mbufs_vec(struct ixgbe_rx_queue *rxq);
#ifdef RTE_IXGBE_INC_VECTOR
-uint16_t ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
- uint16_t nb_pkts);
+uint16_t ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts);
int ixgbe_txq_vec_setup(struct ixgbe_tx_queue *txq);
#endif /* RTE_IXGBE_INC_VECTOR */
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c b/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
index e2715cb..5930aa1 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_neon.c
@@ -451,8 +451,8 @@ vtx(volatile union ixgbe_adv_tx_desc *txdp,
}
uint16_t
-ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
- uint16_t nb_pkts)
+ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
{
struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
volatile union ixgbe_adv_tx_desc *txdp;
diff --git a/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c b/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
index abbf284..0861d91 100644
--- a/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
+++ b/drivers/net/ixgbe/ixgbe_rxtx_vec_sse.c
@@ -537,8 +537,8 @@ vtx(volatile union ixgbe_adv_tx_desc *txdp,
}
uint16_t
-ixgbe_xmit_pkts_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
- uint16_t nb_pkts)
+ixgbe_xmit_fixed_burst_vec(void *tx_queue, struct rte_mbuf **tx_pkts,
+ uint16_t nb_pkts)
{
struct ixgbe_tx_queue *txq = (struct ixgbe_tx_queue *)tx_queue;
volatile union ixgbe_adv_tx_desc *txdp;
--
2.7.4
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