[v3,10/19] net/dpaa: change Tx HW budget to 7

Message ID 1515581201-29784-11-git-send-email-hemant.agrawal@nxp.com
State New
Headers show
Series
  • DPAA PMD improvements
Related show

Commit Message

Hemant Agrawal Jan. 10, 2018, 10:46 a.m.
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(-)

-- 
2.7.4

Patch

diff --git a/drivers/net/dpaa/dpaa_ethdev.h b/drivers/net/dpaa/dpaa_ethdev.h
index f00a77a..1b36567 100644
--- a/drivers/net/dpaa/dpaa_ethdev.h
+++ b/drivers/net/dpaa/dpaa_ethdev.h
@@ -41,7 +41,7 @@ 
 #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 630d7a5..565ca50 100644
--- a/drivers/net/dpaa/dpaa_rxtx.c
+++ b/drivers/net/dpaa/dpaa_rxtx.c
@@ -669,7 +669,7 @@  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;
@@ -683,7 +683,8 @@  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)) {