cxgbe: optimize forwarding performance for 40G

[dpdk.git] / drivers / net / cxgbe / cxgbe_main.c

diff --git a/drivers/net/cxgbe/cxgbe_main.c b/drivers/net/cxgbe/cxgbe_main.c
index 3755444..316b87d 100644 (file)
--- a/drivers/net/cxgbe/cxgbe_main.c
+++ b/drivers/net/cxgbe/cxgbe_main.c
@@ -422,6 +422,13 @@ static int adap_init0_tweaks(struct adapter *adapter)
        t4_set_reg_field(adapter, A_SGE_CONTROL, V_PKTSHIFT(M_PKTSHIFT),
                         V_PKTSHIFT(rx_dma_offset));
 
+       t4_set_reg_field(adapter, A_SGE_FLM_CFG,
+                        V_CREDITCNT(M_CREDITCNT) | M_CREDITCNTPACKING,
+                        V_CREDITCNT(3) | V_CREDITCNTPACKING(1));
+
+       t4_set_reg_field(adapter, A_SGE_CONTROL2, V_IDMAARBROUNDROBIN(1U),
+                        V_IDMAARBROUNDROBIN(1U));
+
        /*
         * Don't include the "IP Pseudo Header" in CPL_RX_PKT checksums: Linux
         * adds the pseudo header itself.