[dpdk-dev] [PATCH 10/18] net/dpaa: change Tx HW budget to 7

[Hemant Agrawal <hemant.agrawal@nxp.com>]

From: Nipun Gupta <nipun.gupta@nxp.com>

change the TX budget to 7 to sync best with the hw.

Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal@nxp.com>
---
 drivers/net/dpaa/dpaa_ethdev.h | 2 +-
 drivers/net/dpaa/dpaa_rxtx.c   | 5 +++--
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/net/dpaa/dpaa_ethdev.h b/drivers/net/dpaa/dpaa_ethdev.h
index b26e411..95d745e 100644
--- a/drivers/net/dpaa/dpaa_ethdev.h
+++ b/drivers/net/dpaa/dpaa_ethdev.h
@@ -67,7 +67,7 @@
 #define DPAA_MAX_MAC_FILTER (MEMAC_NUM_OF_PADDRS + 1)
 
 /*Maximum number of slots available in TX ring*/
-#define MAX_TX_RING_SLOTS	8
+#define DPAA_TX_BURST_SIZE	7
 
 #ifndef VLAN_TAG_SIZE
 #define VLAN_TAG_SIZE   4 /** < Vlan Header Length */
diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c
index c0cfec9..1b0ca9a 100644
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -695,7 +695,7 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 	struct rte_mbuf *mbuf, *mi = NULL;
 	struct rte_mempool *mp;
 	struct dpaa_bp_info *bp_info;
-	struct qm_fd fd_arr[MAX_TX_RING_SLOTS];
+	struct qm_fd fd_arr[DPAA_TX_BURST_SIZE];
 	uint32_t frames_to_send, loop, i = 0;
 	uint16_t state;
 	int ret;
@@ -709,7 +709,8 @@ dpaa_eth_queue_tx(void *q, struct rte_mbuf **bufs, uint16_t nb_bufs)
 	DPAA_DP_LOG(DEBUG, "Transmitting %d buffers on queue: %p", nb_bufs, q);
 
 	while (nb_bufs) {
-		frames_to_send = (nb_bufs >> 3) ? MAX_TX_RING_SLOTS : nb_bufs;
+		frames_to_send = (nb_bufs > DPAA_TX_BURST_SIZE) ?
+				DPAA_TX_BURST_SIZE : nb_bufs;
 		for (loop = 0; loop < frames_to_send; loop++, i++) {
 			mbuf = bufs[i];
 			if (RTE_MBUF_DIRECT(mbuf)) {
-- 
2.7.4