[PATCH net-next 2/3] net: mvpp2: adjust gso stop wake thresholds
From: Antoine Tenart <hidden>
Date: 2018-02-26 14:15:28
Also in:
lkml
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
From: Yan Markman <redacted> Adjust MVPP2_MAX_TSO_SEGS and stop_threshold/wake_threshold for better TXQ utilization and performance. Signed-off-by: Yan Markman <redacted> --- drivers/net/ethernet/marvell/mvpp2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/marvell/mvpp2.c b/drivers/net/ethernet/marvell/mvpp2.c
index 55300b1fe6c0..1a893ef70eab 100644
--- a/drivers/net/ethernet/marvell/mvpp2.c
+++ b/drivers/net/ethernet/marvell/mvpp2.c@@ -498,7 +498,7 @@ * skb. As we need a maxium of two descriptors per fragments (1 header, 1 data), * multiply this value by two to count the maximum number of skb descs needed. */ -#define MVPP2_MAX_TSO_SEGS 300 +#define MVPP2_MAX_TSO_SEGS 100 #define MVPP2_MAX_SKB_DESCS (MVPP2_MAX_TSO_SEGS * 2 + MAX_SKB_FRAGS) /* Dfault number of RXQs in use */
@@ -5810,7 +5810,7 @@ static int mvpp2_txq_init(struct mvpp2_port *port, txq_pcpu->tso_headers = NULL; txq_pcpu->stop_threshold = txq->size - MVPP2_MAX_SKB_DESCS; - txq_pcpu->wake_threshold = txq_pcpu->stop_threshold / 2; + txq_pcpu->wake_threshold = txq_pcpu->stop_threshold - 100; txq_pcpu->tso_headers = dma_alloc_coherent(port->dev->dev.parent,
--
2.14.3