From: Alex Marginean <alexandru.margin...@nxp.com>
Move from doing batch refill of Rx ring from bundles of 8 to once per
enetc_clean_rx_ring call. One benefit is that we're cleaning up all the
BDs that we just processed, which should still be cached. The other is
that hardware Rx index stays a little back and doesn't cause contention on
the BDs processed in the Rx loop.
Signed-off-by: Alex Marginean <alexandru.margin...@nxp.com>
---
drivers/net/enetc/enetc_rxtx.c | 10 ++--------
1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/net/enetc/enetc_rxtx.c b/drivers/net/enetc/enetc_rxtx.c
index 958e3a21d..262ed8a0f 100644
--- a/drivers/net/enetc/enetc_rxtx.c
+++ b/drivers/net/enetc/enetc_rxtx.c
@@ -14,8 +14,6 @@
#include "enetc.h"
#include "enetc_logs.h"
-#define ENETC_RXBD_BUNDLE 8 /* Number of BDs to update at once */
-
static int
enetc_clean_tx_ring(struct enetc_bdr *tx_ring)
{
@@ -305,12 +303,6 @@ enetc_clean_rx_ring(struct enetc_bdr *rx_ring,
union enetc_rx_bd *rxbd;
uint32_t bd_status;
- if (cleaned_cnt >= ENETC_RXBD_BUNDLE) {
- int count = enetc_refill_rx_ring(rx_ring, cleaned_cnt);
-
- cleaned_cnt -= count;
- }
-
rxbd = ENETC_RXBD(*rx_ring, i);
bd_status = rte_le_to_cpu_32(rxbd->r.lstatus);
if (!bd_status)
@@ -337,6 +329,8 @@ enetc_clean_rx_ring(struct enetc_bdr *rx_ring,
rx_frm_cnt++;
}
+ enetc_refill_rx_ring(rx_ring, cleaned_cnt);
+
return rx_frm_cnt;
}
--
2.17.1
