net/mlx5: add glue for queue query via DevX

[dpdk.git] / drivers / net / e1000 / em_rxtx.c

diff --git a/drivers/net/e1000/em_rxtx.c b/drivers/net/e1000/em_rxtx.c
index 708f832..9d7cbc4 100644 (file)
--- a/drivers/net/e1000/em_rxtx.c
+++ b/drivers/net/e1000/em_rxtx.c
@@ -1964,6 +1964,22 @@ eth_em_tx_init(struct rte_eth_dev *dev)
        tctl |= (E1000_TCTL_PSP | E1000_TCTL_RTLC | E1000_TCTL_EN |
                 (E1000_COLLISION_THRESHOLD << E1000_CT_SHIFT));
 
+       /* SPT and CNP Si errata workaround to avoid data corruption */
+       if (hw->mac.type == e1000_pch_spt) {
+               uint32_t reg_val;
+               reg_val = E1000_READ_REG(hw, E1000_IOSFPC);
+               reg_val |= E1000_RCTL_RDMTS_HEX;
+               E1000_WRITE_REG(hw, E1000_IOSFPC, reg_val);
+
+               /* Dropping the number of outstanding requests from
+                * 3 to 2 in order to avoid a buffer overrun.
+                */
+               reg_val = E1000_READ_REG(hw, E1000_TARC(0));
+               reg_val &= ~E1000_TARC0_CB_MULTIQ_3_REQ;
+               reg_val |= E1000_TARC0_CB_MULTIQ_2_REQ;
+               E1000_WRITE_REG(hw, E1000_TARC(0), reg_val);
+       }
+
        /* This write will effectively turn on the transmit unit. */
        E1000_WRITE_REG(hw, E1000_TCTL, tctl);
 }