net: hns: set xge statistic reg as read only

As the user manual of HNS V2 describs, XGE_DFX_CTRL_CFG.xge_dfx_ctrl_cfg
should be configed as zero if we want xge statistic reg to be read only.
But HNS V1 gets the other meanings. It needs to be identified the process
and then config it rightly.

Signed-off-by: Qianqian Xie <xieqianqian@huawei.com>
Signed-off-by: Yisen Zhuang <Yisen.Zhuang@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
index 38fc5be3870cc3258755e79d13ac501ffa0826e4..5c1ac9ba1bf2a8cbd6949ee6db6faea9eddb0943 100644 (file)
--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c
@@ -748,8 +748,9 @@ static void hns_dsaf_tbl_stat_en(struct dsaf_device *dsaf_dev)
  */
 static void hns_dsaf_rocee_bp_en(struct dsaf_device *dsaf_dev)
 {
-       dsaf_set_dev_bit(dsaf_dev, DSAF_XGE_CTRL_SIG_CFG_0_REG,
-                        DSAF_FC_XGE_TX_PAUSE_S, 1);
+       if (AE_IS_VER1(dsaf_dev->dsaf_ver))
+               dsaf_set_dev_bit(dsaf_dev, DSAF_XGE_CTRL_SIG_CFG_0_REG,
+                                DSAF_FC_XGE_TX_PAUSE_S, 1);
 }
 
 /* set msk for dsaf exception irq*/