On 11/1/2019 9:05 PM, Jason Gunthorpe wrote: > On Fri, Nov 01, 2019 at 05:36:36PM +0800, oulijun wrote: >> Hi >> I am using the ubuntu system(5.0.0 kernel) to test the hip08 NIC port,. When I modify the perr mac1 to mac2,then restore to mac1, it will cause >> the gid0 and gid 1 of the roce to be unavailable, and check that the /sys/class/infiniband/hns_0/ports/1/gid_attrs/ndevs/0 is show invalid. >> the protocol stack print will appear. >> >> Oct 16 17:59:36 ubuntu kernel: [200635.496317] __ib_cache_gid_add: unable to add gid fe80:0000:0000:0000:4600:4dff:fea7:9599 error=-28 >> Oct 16 17:59:37 ubuntu kernel: [200636.705848] 8021q: adding VLAN 0 to HW filter on device enp189s0f0 >> Oct 16 17:59:37 ubuntu kernel: [200636.705854] __ib_cache_gid_add: unable to add gid fe80:0000:0000:0000:4600:4dff:fea7:9599 error=-28 >> Oct 16 17:59:39 ubuntu kernel: [200638.755828] hns3 0000:bd:00.0 enp189s0f0: link up >> Oct 16 17:59:39 ubuntu kernel: [200638.755847] IPv6: ADDRCONF(NETDEV_CHANGE): enp189s0f0: link becomes ready >> Oct 16 18:00:56 ubuntu kernel: [200715.699961] hns3 0000:bd:00.0 enp189s0f0: link down >> Oct 16 18:00:56 ubuntu kernel: [200716.016142] __ib_cache_gid_add: unable to add gid fe80:0000:0000:0000:4600:4dff:fea7:95f4 error=-28 >> Oct 16 18:00:58 ubuntu kernel: [200717.229857] 8021q: adding VLAN 0 to HW filter on device enp189s0f0 >> Oct 16 18:00:58 ubuntu kernel: [200717.229863] __ib_cache_gid_add: unable to add gid fe80:0000:0000:0000:4600:4dff:fea7:95f4 error=-28 >> >> Has anyone else encounterd a similar problem ? I wonder if the _ib_cache_add_gid() is defective in 5.0 kernel? > > Maybe Parav knows? > One possibility is, during the operation you have port reset; Then all gids will be deleted and re-created. But during gids re-build gid entry #0 and #1 is in use, so they cannot be deleted then you get this error. > Jason >
