Hi Guys, Using Dpdk verion : 18.11
Could you please help me figure out why get link status still reports interface as UP even though the link is Down. Intel card: 06:00.0 Ethernet controller: Intel Corporation Device 15e4 (rev 11) - X553 06:00.1 Ethernet controller: Intel Corporation Device 15e4 (rev 11) - X553 07:00.0 Ethernet controller: Intel Corporation Device 15e5 (rev 11) - X553 Problem: Even after bringing DOWN the port, get link status still reports interface UP. My investigation: 1. in ixgbe/base/ixgbe_type.h i see these being defined. Not sure why its defined under this following comment /* Placeholder value, pending official value. */ #define IXGBE_DEV_ID_X550EM_A_1G_T 0x15E4 #define IXGBE_DEV_ID_X550EM_A_1G_T_L 0x15E5 >From this detail i can conclude we have support for above nics. 2. https://doc.dpdk.org/guides-18.11/nics/ixgbe.html#supported-chipsets-and-nics - This link has supported nics and these above nics are not listed under this. 3. After putting some debug statement in ixgbe driver the problem seem to be in base/ixgbe_common.c(ixgbe_check_mac_link_generic() function) links_orig = IXGBE_READ_REG(hw, IXGBE_LINKS); links_reg = IXGBE_READ_REG(hw, IXGBE_LINKS); if (links_orig != links_reg) { 4. I suspect on the resister value used to identify the link status is messing up. Could you please provide your input. Thank you so much for your time.
