Finally I managed to run testpmd normally after updating a kernel to 4.14.14 and installing rdma-core_v17 from sources.
Tnx for the advice of setting parameter log_num_mgm_entry_size" to "-1" /Regards, Timur On Fri, Jan 19, 2018 at 2:10 PM, Timur Bogdanov <[email protected]> wrote: > Server kernel is 4.14.13-1.el7.elrepo.x86_64. > The rdma-core is v16. > Parameter "log_num_mgm_entry_size" is set to "-1" > So I don't know why testpmd still runs with same error: > > PMD: net_mlx4: 0xda13c0: cannot attach flow rules (code 95, "Operation > not supported"), flow error type 2, cause 0x7f2869cdab80, message: > flow rule rejected by device > /Regards, Timur > > > On Thu, Jan 18, 2018 at 6:05 PM, Adrien Mazarguil > <[email protected]> wrote: >> On Thu, Jan 18, 2018 at 03:11:16PM +0300, Timur Bogdanov wrote: >>> Yes, the problem was in this parameter and after changing it to "-1" >>> testpmd application has been started successfully. >>> >>> BUT, it started successfully only on server where Mellanox OFED is >>> installed. >>> >>> On another server a rdma-core was installed from sources. (rpm's were >>> built and installed) >>> I also changed the value of log_num_mgm_entry_size parameter to "-1" >>> and restarted a server (since where is no openibd service on this >>> server) and got the same error. >>> Maybe mlx4_core kernel module parameter should be changed in some >>> other config file? >> >> In case MLNX_OFED is *not* installed, do both rdma-core and kernel version >> meet the minimum requirements? >> >> - rdma-core v15 >> - Linux 4.14 >> >> Note while the above versions are fine for mlx5 (ConnectX-4, ConnectX-5), >> they provide reduced performance and RSS capabilities for mlx4 (ConnectX-3), >> for which I recommend to use at least: >> >> - rdma-core v16 >> - Linux 4.15 (not released yet, 4.15-rc8 will do in the meantime) >> >>> Anyway, I can also install and use OFED instead of RDMA but the RDMA >>> is pointed as recommended on instructions page >>> "http://dpdk.org/doc/guides/nics/mlx4.html"; and it is interesting to >>> bring it to working state. >>> /Regards, Timur >> >> rdma-core requires an up-to-date kernel. If this can't be satisfied, >> MLNX_OFED is the only alternative (the mlnx-ofa_kernel package). >> >>> On Thu, Jan 18, 2018 at 11:48 AM, Adrien Mazarguil >>> <[email protected]> wrote: >>> > On Tue, Jan 16, 2018 at 06:59:31PM +0300, Timur Bogdanov wrote: >>> >> Hi, >>> >> >>> >> I'm trying to use dpdk with Mellanox ConnectX-3 Pro NIC. >>> >> I built PMD for it according to instructions on >>> >> "http://dpdk.org/doc/guides/nics/mlx4.html"; and tried to launch >>> >> testpmd app but got following error: >>> > <snip> >>> >> PMD: net_mlx4: 0xda13c0: cannot attach flow rules (code 95, "Operation >>> >> not supported"), flow error type 2, cause 0x7f2869cdab80, message: >>> >> flow rule rejected by device >>> >> >>> >> Fail to start port 0 >>> > <snip> >>> >> What can be the reason of testpmd does not start correctly? >>> > >>> > Did you provide by any chance -7 instead of -1 as a value for >>> > mlx4_core.ko's >>> > log_num_mgm_entry_size parameter (as recommended by the above >>> > documentation)? >>> > >>> > Timothy (CC'ed) reported that -7 does not quite work with the default flow >>> > rules (too many limitations) and results in the above error message. -1 >>> > should be used, -7 is only for specific use cases and should probably not >>> > even be documented in this file. >>> > >>> > -- >>> > Adrien Mazarguil >>> > 6WIND >> >> -- >> Adrien Mazarguil >> 6WIND
