diff options
| author | lipeng <lipeng321@huawei.com> | 2017-04-01 12:03:32 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-04-03 14:48:43 -0700 |
| commit | 87ff7e1f460d709100cf5203738d62629ab6949b (patch) | |
| tree | 5d640d03b44cfe119fc82c8aaf98d70b90af05ff /drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c | |
| parent | ba2d079131b494fca98cba37a5356e596a7501a6 (diff) | |
| download | op-kernel-dev-87ff7e1f460d709100cf5203738d62629ab6949b.zip op-kernel-dev-87ff7e1f460d709100cf5203738d62629ab6949b.tar.gz | |
net: hns: Modify GMAC init TX threshold value
This patch reduces GMAC TX threshold value to avoid gmac
hang-up with speed 100M/duplex half.
Signed-off-by: lipeng <lipeng321@huawei.com>
Signed-off-by: JinchuanTian <tianjinchuan1@huawei.com>
Reviewed-by: Yisen Zhuang <yisen.zhuang@huawei.com>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c index 3382441..a8dbe00 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c @@ -325,6 +325,12 @@ static void hns_gmac_init(void *mac_drv) hns_gmac_tx_loop_pkt_dis(mac_drv); if (drv->mac_cb->mac_type == HNAE_PORT_DEBUG) hns_gmac_set_uc_match(mac_drv, 0); + + /* reduce gmac tx water line to avoid gmac hang-up + * in speed 100M and duplex half. + */ + dsaf_set_dev_field(drv, GMAC_TX_WATER_LINE_REG, GMAC_TX_WATER_LINE_MASK, + GMAC_TX_WATER_LINE_SHIFT, 8); } void hns_gmac_update_stats(void *mac_drv) |
