From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peng Li Subject: [PATCH V2 net 0/2] net: hns: fix some bugs about speed and duplex change Date: Mon, 27 Aug 2018 09:59:28 +0800 Message-ID: <1535335170-111030-1-git-send-email-lipeng321@huawei.com> Mime-Version: 1.0 Content-Type: text/plain Cc: , , , , , To: Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org If there are packets in hardware when changing the spped or duplex, it may cause hardware hang up. This patchset adds the code for waiting chip to clean the all pkts(TX & RX) in chip when the driver uses the function named "adjust link". This patchset cleans the pkts as follows: 1) close rx of chip, close tx of protocol stack. 2) wait rcb, ppe, mac to clean. 3) adjust link 4) open rx of chip, open tx of protocol stack. --- Change log: V1 -> V2: 1, remove a patch according to the comment reported by Andrew Lunn. --- Peng Li (2): net: hns: add the code for cleaning pkt in chip net: hns: add netif_carrier_off before change speed and duplex drivers/net/ethernet/hisilicon/hns/hnae.h | 2 + drivers/net/ethernet/hisilicon/hns/hns_ae_adapt.c | 67 +++++++++++++++++++++- drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c | 36 ++++++++++++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.c | 44 ++++++++++++++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_mac.h | 8 +++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.c | 29 ++++++++++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_main.h | 3 + drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.c | 23 ++++++++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_ppe.h | 1 + drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.c | 23 ++++++++ drivers/net/ethernet/hisilicon/hns/hns_dsaf_rcb.h | 1 + drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h | 1 + drivers/net/ethernet/hisilicon/hns/hns_enet.c | 21 ++++++- drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 2 + 14 files changed, 257 insertions(+), 4 deletions(-) -- 2.9.3