From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peng Li Subject: [PATCH NET 3/3] net: hns: add configuration constraints for 1000M half Date: Fri, 24 Aug 2018 11:42:23 +0800 Message-ID: <1535082143-122281-4-git-send-email-lipeng321@huawei.com> References: <1535082143-122281-1-git-send-email-lipeng321@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , , , To: Return-path: In-Reply-To: <1535082143-122281-1-git-send-email-lipeng321@huawei.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org Hisilicon hip05 and hip06 board network card do not support 1000M half configuration. Driver can not config gmac as 1000M half. Signed-off-by: Peng Li --- drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c index 09e4061..c1d062e 100644 --- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c +++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c @@ -272,6 +272,11 @@ static int hns_gmac_adjust_link(void *mac_drv, enum mac_speed speed, { struct mac_driver *drv = (struct mac_driver *)mac_drv; + if (full_duplex == DUPLEX_HALF && speed == MAC_SPEED_1000) { + dev_err(drv->dev, "HW do not support 1000M half\n"); + return -EINVAL; + } + dsaf_set_dev_bit(drv, GMAC_DUPLEX_TYPE_REG, GMAC_DUPLEX_TYPE_B, !!full_duplex); -- 2.9.3