Little more information. It looks like the below X550 nic is broken as the change related to http://patches.dpdk.org/patch/63951/ is not been backported. The below patch broken the link status for ixgbevf and the fix was done in the above patch but we have only backported the below patch to 18.11.6 which breaks the ixgbevf link status. When is plan for 18.11.7 or updated 18.11.6 as we should not have a broken release.
-- Regads, Souvik From: Dey, Souvik Sent: Wednesday, March 4, 2020 4:08 PM To: dev@dpdk.org Cc: xiaolong...@intel.com; xiao.zh...@intel.com; us...@dpdk.org; Stephen Hemminger <step...@networkplumber.org>; Ferruh Yigit <ferruh.yi...@intel.com> Subject: RE: Issue with X550 link status The X550 NIC is of the below device id. [root@stdell10 ~]# lspci -nnn | grep -i ether 19:00.0 Ethernet controller [0200]: Intel Corporation Ethernet Controller 10G X550T [8086:1563] (rev 01) 19:00.1 Ethernet controller [0200]: Intel Corporation Ethernet Controller 10G X550T [8086:1563] (rev 01) 19:10.0 Ethernet controller [0200]: Intel Corporation X550 Virtual Function [8086:1565] 19:10.1 Ethernet controller [0200]: Intel Corporation X550 Virtual Function [8086:1565] 19:10.2 Ethernet controller [0200]: Intel Corporation X550 Virtual Function [8086:1565] 19:10.3 Ethernet controller [0200]: Intel Corporation X550 Virtual Function [8086:1565] So the mac_type is ixgbe_mac_X550_vf in the below case. -- Regards, Souvik From: Dey, Souvik Sent: Wednesday, March 4, 2020 1:17 PM To: dev@dpdk.org<mailto:dev@dpdk.org> Cc: xiaolong...@intel.com<mailto:xiaolong...@intel.com>; xiao.zh...@intel.com<mailto:xiao.zh...@intel.com>; us...@dpdk.org<mailto:us...@dpdk.org> Subject: Issue with X550 link status Hi All, After upgrading to DPDK 18.11.6 LTS release from 18.11.2 the link_update call for link status update is not working for X550 NICs SR-IOV enabled. On debugging it looks like the change introduced as a part of this patch is causing the issue. https://patches.dpdk.org/patch/62140/ @@ -4135,6 +4138,10 @@ ixgbe_dev_link_update_share(struct rte_eth_dev *dev, return rte_eth_linkstatus_set(dev, &link); } + esdp_reg = IXGBE_READ_REG(hw, IXGBE_ESDP); + if ((esdp_reg & IXGBE_ESDP_SDP3)) + link_up = 0; + if (link_up == 0) { if (ixgbe_get_media_type(hw) == ixgbe_media_type_fiber) { intr->flags |= IXGBE_FLAG_NEED_LINK_CONFIG; I can see that the esdp_req is coming as 3735928495(0xDEADBEAF) and due to which the link_up is set to 0 even when ixgbevf_check_link returned link_up as 1. Along with this patch I also see a path_fullchk patch introduced , does that play any role in this ? Can someone please let me know if the patch has got some issues or it is behaving correctly and the link_status is failing for valid reason. As mentioned earlier the same HW with same NIC acting in SR-IOV works fine with 18.11.2 DPDK . I am blocked at a customer bug dew to this and any urgent help will be much appreciated. -- Regards, Souvik ----------------------------------------------------------------------------------------------------------------------- Notice: This e-mail together with any attachments may contain information of Ribbon Communications Inc. that is confidential and/or proprietary for the sole use of the intended recipient. Any review, disclosure, reliance or distribution by others or forwarding without express permission is strictly prohibited. If you are not the intended recipient, please notify the sender immediately and then delete all copies, including any attachments. -----------------------------------------------------------------------------------------------------------------------
