If you compiled pmd statically with libibverbs and libmlx4 you shouldn't see it in ldd. Seems that something went wrong. In any case, ofed doesn't install libraries under /usr/local Please remove all mlx related libraries under /usr/local/ like libmlx4 and libibverbs
-------- Original message -------- From: Raghav Sethi Date:05/04/2015 00:29 (GMT+02:00) To: Olga Shern ,Adrien Mazarguil ,dev at dpdk.org,Xiaozhou Li Subject: Re: [dpdk-dev] [PATCH] doc: update mlx4 usage and dependencies Hi Olga, Thanks very much for helping. I tried stopping and starting, after stop lsmod | grep mlx had no matches. After start, it had the output listed below. The device is the same as on the rest of the machines - Mellanox ConnectX3-EN 40G single port. The application parameters are the same as the ones listed on the docs (except of course PCI address is different): sudo ./testpmd -c 0xff -n 4 -w 0000:06:00.0 -- --rxq=2 --txq=2 -i Outputs you requested: 1. lspci | grep Mellanox 06:00.0 Ethernet controller: Mellanox Technologies MT27500 Family [ConnectX-3] 2. ibdev2netdev mlx4_0 port 1 ==> p3p1 (Up) 3. ldd testpmd linux-vdso.so.1 => (0x00007fff7c1dc000) libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f1a7dc07000) librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f1a7d9ff000) libibverbs.so.1 => /usr/local/lib/libibverbs.so.1 (0x00007f1a7d7eb000) libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f1a7d5e7000) libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f1a7d3c9000) libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f1a7d003000) /lib64/ld-linux-x86-64.so.2 (0x00007f1a7df19000) 4. lsmod | grep mlx mlx5_ib 138046 0 mlx5_core 108376 1 mlx5_ib mlx4_ib 199880 0 ib_sa 43732 5 rdma_cm,ib_cm,mlx4_ib,rdma_ucm,ib_ipoib mlx4_en 137047 0 ib_mad 51544 4 ib_cm,ib_sa,mlx4_ib,ib_umad vxlan 37619 1 mlx4_en ib_core 130498 12 rdma_cm,ib_cm,ib_sa,iw_cm,mlx4_ib,mlx5_ib,ib_mad,ib_ucm,ib_umad,ib_uverbs,rdma_ucm,ib_ipoib mlx4_core 332375 2 mlx4_en,mlx4_ib compat 13738 17 rdma_cm,ib_cm,ib_sa,iw_cm,mlx4_en,mlx4_ib,mlx5_ib,ib_mad,ib_ucm,ib_addr,ib_core,ib_umad,ib_uverbs,mlx4_core,mlx5_core,rdma_ucm,ib_ipoib ptp 18933 3 igb,ixgbe,mlx4_en Best regards, Raghav On Sat, Apr 4, 2015 at 5:04 PM Olga Shern <olgas at mellanox.com<mailto:olgas at mellanox.com>> wrote: Hi Raghav, After running /etc/init.d/openibd restart you don?t need to load the modules, they are loaded by the openibd script. Can you try to run : /etc/init.d/openibd stop Verify that modules are not loaded /etc/init.d/openib start If it won?t help: What Mellanox NIC do you have on the ?problematic? machine? What command line do you use to run the application? Please send output of: 1. ?lspci | grep Mellanox? 2. ibdev2netdev 3. ldd <your application> 4. lsmod Thanks Olga From: Raghav Sethi [mailto:raghavs at CS.Princeton.EDU<mailto:ragh...@cs.princeton.edu>] Sent: Saturday, April 04, 2015 11:54 PM To: Olga Shern; Adrien Mazarguil; dev at dpdk.org<mailto:dev at dpdk.org>; Xiaozhou Li Subject: Re: [dpdk-dev] [PATCH] doc: update mlx4 usage and dependencies Hi Olga, Thanks for your reply. OFED version was 2.4-1.0.4 for ubuntu14.04-x86_64 I tried both variants: - Compiling with dynamic linking against OFED libraries - Compiling with static linking against dpdk.org<http://dpdk.org> libraries Both have the same issue. Best, Raghav On Sat, Apr 4, 2015 at 4:49 PM Olga Shern <olgas at mellanox.com<mailto:olgas at mellanox.com>> wrote: Hi Raghav, What OFED version did you install? There are 2 ways to compile mlx4: 1. You can compile it dynamically with the libibverbs that are coming with Mellanox_OFED 2.4 2. To get better performance: compile it statically with libibverbs and libmlx4 that can be downloaded from http://dpdk.org/download, the README inside librte_pmd_mlx4 explains how to do it If you compile the pmd statically then MLNX_OFED is needed only for kernel modules. Best Regards, Olga -----Original Message----- From: dev [mailto:dev-bounces at dpdk.org<mailto:dev-boun...@dpdk.org>] On Behalf Of Raghav Sethi Sent: Friday, April 03, 2015 9:21 PM To: Adrien Mazarguil; dev at dpdk.org<mailto:dev at dpdk.org>; Xiaozhou Li Subject: Re: [dpdk-dev] [PATCH] doc: update mlx4 usage and dependencies Hi Adrien, Quick update: So I just tried the setup again on a new machine with the exact same hardware - installed OFED and compiled DPDK 2.0.0. Works like a charm. Still getting the issue on the old machine (also upgraded to 2.0.0 FWIW). >From the error message it appears that the libraries are incorrectly >installed/configured. However, the OFED uninstall script removes the libraries >in question (libmlx5-rdmav2.so, libibverbs/libmlx4-rdmav2.so, libibverbs.so), >I checked! In fact, I diffed the libibverbs.so from both machines, and they're >exactly identical. So it seems either the OFED installation/uninstallation is >somehow flawed, or the error message from testpmd is misleading. Best, Raghav On Fri, Apr 3, 2015 at 12:52 PM Raghav Sethi <raghavs at cs.princeton.edu<mailto:raghavs at cs.princeton.edu>> wrote: > Hi Adrien, > > I've copied dev at dpdk. > > I re-installed Mellanox OFED, and then re-compiled DPDK without the > flags for the static library. I'm running Ubuntu 14.04. However, I > still get the same error message (below). > > I then tried re-installing the Mellanox libraries on > dpdk.org<http://dpdk.org>, and > compiled another copy of DPDK with them statically linked. This > appears to work perfectly. I no longer get the permission issues I was > getting before, possibly that was unrelated/fixed by OFED. Now both > OFED, and OFED+ dpdk.org<http://dpdk.org> libs statically linked have the > same issue: > > EAL: PCI device 0000:06:00.0 on NUMA socket 0 > EAL: probe driver: 15b3:1003 librte_pmd_mlx4 > libibverbs: Warning: couldn't load driver '/usr/lib/libibverbs/libmlx5': > /usr/lib/libibverbs/libmlx5-rdmav2.so: symbol ibv_exp_cmd_getenv, > version > IBVERBS_1.1 not defined in file libibverbs.so.1 with link time > reference > libibverbs: Warning: couldn't load driver '/usr/lib/libibverbs/libmlx4': > /usr/lib/libibverbs/libmlx4-rdmav2.so: symbol > ibv_exp_cmd_destroy_flow, version IBVERBS_1.1 not defined in file > libibverbs.so.1 with link time reference > libibverbs: Warning: no userspace device-specific driver found for > /sys/class/infiniband_verbs/uverbs0 > PMD: librte_pmd_mlx4: cannot access device, is mlx4_ib loaded? > EAL: No probed ethernet devices > > The OFED install was successful (and it apparently removes/overwrites > old versions of the libraries). The installer also checks the firmware > versions, and it says I'm on the latest. Loading the kernel modules is > also successful, so I can't for the life of me figure out what this issue is > now. > > Again, just to be clear, the full list of steps was: > 1. Install OFED, run /etc/init.d/openibd restart 2. Compile DPDK with > the CONFIG_RTE_LIBRTE_MLX4_PMD=y 3. Set up hugepages 4. Load kernel > modules 5. Run testpmd > > Best, > Raghav > > On Fri, Apr 3, 2015 at 3:34 AM Adrien Mazarguil < > adrien.mazarguil at 6wind.com<mailto:adrien.mazarguil at 6wind.com>> wrote: > >> Hi Raghav, >> >> On Thu, Apr 02, 2015 at 10:05:57PM +0000, Raghav Sethi wrote: >> > Hi Adrien, >> > >> > Thanks for your reply - I hope it's OK that I'm emailing you off-list. >> I'm >> > a grad student at Princeton working on a research project. >> >> It's fine, but let's discuss on the ML as much as possible next time >> so the community can benefit from it. Since very few people use this >> driver at the moment (DPDK 2.0 is not even out yet), I have my own >> questions for you. >> >> > Given your patch (which was very helpful, thanks), here is the >> > series of all steps that I'm taking to run testpmd on a ConnectX-3 >> > EN 40G >> > >> > 1. Compile and install the mellanox-specific libraries listed here: >> > http://dpdk.org/download/mlx4/2015-03-26-DPDK-v2.0.0/ >> >> This is fine, but did you use the provided Makefile to compile these >> libraries statically? If so, no issues? >> >> Also you did not install Mellanox OFED? You should, because updated >> kernel modules come from that distribution. It won't work properly >> (or at all) without them. >> >> The libraries from DPDK.org are actually optional once you've >> installed Mellanox OFED. They only improve performance. Remember to >> update firmwares also. >> >> > 2. export EXTRA_CFLAGS and EXTRA_LDFLAGS 3. Create a new >> > configuration which includes the CONFIG_RTE_LIBRTE_MLX4_PMD=y flag. >> > 4. Compile DPDK 2.0 with the new configuration using setup.sh 5. >> > Set up hugepages using setup.sh 6. Load the kernel modules >> > ib_uverbs mlx4_en mlx4_core mlx4_ib 7. Run testpmd with the right >> > PCI bus address >> > >> > However, I consistently get: >> > sudo: unable to execute ./testpmd: Permission denied >> >> Now that doesn't make sense, isn't that file missing permissions or >> something? Are you running RHEL with a restrictive SELinux policy? >> Is sudo configured to allow you to run testpmd? >> >> In any case, I don't think it's related to librte_pmd_mlx4. >> >> > I tried taking the interface down with ifconfig because >> > (./tools/dpdk_nic_bind.py --status shows the interface as active), >> > but >> that >> > didn't change anything. >> >> No, you should leave the interfaces up, it's not supposed to >> disappear, the PMD will bring them back up anyway. Actually the Linux >> kernel interface remains fully functional even while DPDK >> applications are running. You can send packets out of it but as long >> as both the kernel and DPDK applications share the same MAC address, >> only DPDK applications will receive replies. >> If >> you change the MAC address on the kernel interface however, you'll be >> able to use it normally. >> >> > I tried installing the mellanox libraries globally, but then I see >> > these error messages: >> > >> > ------- >> > EAL: PCI device 0000:06:00.0 on NUMA socket 0 >> > EAL: probe driver: 15b3:1003 librte_pmd_mlx4 >> > libibverbs: Warning: couldn't load driver '/usr/lib/libibverbs/libmlx5': >> > /usr/lib/libibverbs/libmlx5-rdmav2.so: symbol ibv_exp_cmd_getenv, >> version >> > IBVERBS_1.1 not defined in file libibverbs.so.1 with link time >> > reference >> > libibverbs: Warning: couldn't load driver '/usr/lib/libibverbs/libmlx4': >> > /usr/lib/libibverbs/libmlx4-rdmav2.so: symbol >> > ibv_exp_cmd_destroy_flow, version IBVERBS_1.1 not defined in file >> > libibverbs.so.1 with link time reference >> > libibverbs: Warning: no userspace device-specific driver found for >> > /sys/class/infiniband_verbs/uverbs0 >> > PMD: librte_pmd_mlx4: cannot access device, is mlx4_ib loaded? >> > EAL: No probed ethernet devices >> > Interactive-mode selected >> > EAL: Error - exiting with code: 1 >> > Cause: Creation of mbuf pool for socket 0 failed >> > -------- >> >> That's because the libibverbs version you're using is not compatible >> with the userspace drivers installed on your system (libibverbs uses >> dlopen() to load liblmx4). Even though you've installed both from >> DPDK.org, seems you have another version installed by your >> distribution packages. >> >> If you intend to use dynamic libraries, you should uninstall >> libibverbs, >> libmlx4 and related packages first. >> >> Regards, >> >> -- >> Adrien Mazarguil >> 6WIND >> >