Re: [vpp-dev] About lock-free operation in policer
Simply because most CLI commands and API handlers are marked as not is_mp_safe, hence they are actually protected by vlib_worker_thread_barrier_sync. So to speak, node functions are temporally stopped and waiting when CLI/API is being executed. You should take a look at: vlib_worker_thread_barrier_sync/ vlib_worker_thread_barrier_release Regards, Kingwel From: vpp-dev@lists.fd.io On Behalf Of blankspot Sent: Tuesday, January 15, 2019 3:00 PM To: vpp-dev Subject: [vpp-dev] About lock-free operation in policer hi all, I have a question about policer classify. The code of bind/unbind a policer with interface is: if (is_add) pcm->classify_table_index_by_sw_if_index[ti][sw_if_index] = pct[ti]; else pcm->classify_table_index_by_sw_if_index[ti][sw_if_index] = ~0; and the code checking the value in "ip4-policer-classify" node is: table_index0 = pcm->classify_table_index_by_sw_if_index[tid][sw_if_index0]; There is no lock protecting the table index. The function of policer is ok in multi-thread vpp, but I don't know why it is lock-free. Can any one help? Thanks. yonggong -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11919): https://lists.fd.io/g/vpp-dev/message/11919 Mute This Topic: https://lists.fd.io/mt/2915/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] VNET classifier table/session
Hi, Can you please provide few examples (with right syntax and little explanation) on to how to use VNET classify table and classify session in relatively older VPP releases. "classify table [miss-next|l2-miss_next|acl-miss-next ]" "\n mask buckets [skip ] [match ] [del]", "classify session [hit-next|l2-hit-next|acl-hit-next ]" "\n table-index match [hex] [l2] [l3 ip4] [opaque-index ]", Thanks, Harish -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11918): https://lists.fd.io/g/vpp-dev/message/11918 Mute This Topic: https://lists.fd.io/mt/29122272/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] About lock-free operation in policer
hi all, I have a question about policer classify. The code of bind/unbind a policer with interface is: if (is_add) pcm->classify_table_index_by_sw_if_index[ti][sw_if_index] = pct[ti]; else pcm->classify_table_index_by_sw_if_index[ti][sw_if_index] = ~0; and the code checking the value in "ip4-policer-classify" node is: table_index0 = pcm->classify_table_index_by_sw_if_index[tid][sw_if_index0]; There is no lock protecting the table index. The function of policer is ok in multi-thread vpp, but I don't know why it is lock-free. Can any one help? Thanks. yonggong -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11917): https://lists.fd.io/g/vpp-dev/message/11917 Mute This Topic: https://lists.fd.io/mt/2915/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] GoVPP
Hi, I have been trying to implement a simple VPP management application which uses the go bindings generated by GoVPP. The simple-client given in GoVPP works fine but I’ve been trying to add additional functionalities to it. I followed a sample go program from https://www.marosmars.com/blog/managing-vpp-go-edition blog but when I build the program it gives me the following errors: My operating system is Centos 7 and I have installed VPP 19.01, go1.11.4 and GoVPP. I was wondering if anyone could help me with this problem. Thanks in advance! Regards, Abeeha Aqeel -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11916): https://lists.fd.io/g/vpp-dev/message/11916 Mute This Topic: https://lists.fd.io/mt/29122154/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] Issues running vpp #vpp
VPP isn't running for some reason, hence you can't connect to it. Ray K On 14/01/2019 16:08, Abdul Hadi wrote: > Hi All, > > I suddenly have this problem of not being able to run vpp. Tried both > building and installing myself and using also vagrant as well. Both > scenarios end up with the same error which is > clib_socket_init: connect (fd 3, '/run/vpp/cli.sock'): No such file or > directory > > Can any one help? if there is anything new that i am not aware of? > > i am following everything at > https://wiki.fd.io/view/VPP/Pulling,_Building,_Running,_Hacking_and_Pushing_VPP_Code#Subsequent_Builds.27 > > Thanks in advance! > Hadi > > -=-=-=-=-=-=-=-=-=-=-=- > Links: You receive all messages sent to this group. > > View/Reply Online (#11912): https://lists.fd.io/g/vpp-dev/message/11912 > Mute This Topic: https://lists.fd.io/mt/29080648/675355 > Mute #vpp: https://lists.fd.io/mk?hashtag=vpp=1480675 > Group Owner: vpp-dev+ow...@lists.fd.io > Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [m...@ashroe.eu] > -=-=-=-=-=-=-=-=-=-=-=- > signature.asc Description: OpenPGP digital signature -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11915): https://lists.fd.io/g/vpp-dev/message/11915 Mute This Topic: https://lists.fd.io/mt/29080648/21656 Mute #vpp: https://lists.fd.io/mk?hashtag=vpp=1480452 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] Reminder: VPP Release 19.01 RC1 date is this Wednesday 16th January 2019
Hi all, A reminder that the RC1 branch [1] is this Wednesday 16th January at 18:00 UTC. We’re still accepting low-risk patches on master ahead of the branch. [1] https://wiki.fd.io/view/Projects/vpp/Release_Plans/Release_Plan_19.01 --a -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11914): https://lists.fd.io/g/vpp-dev/message/11914 Mute This Topic: https://lists.fd.io/mt/29081899/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] Issues running vpp #vpp
You probably need to either run VPP as root or specify an alternate file location that your user can write to in your config. cli-listen /run/vpp/cli.sock -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11913): https://lists.fd.io/g/vpp-dev/message/11913 Mute This Topic: https://lists.fd.io/mt/29080648/21656 Mute #vpp: https://lists.fd.io/mk?hashtag=vpp=1480452 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
[vpp-dev] Issues running vpp #vpp
Hi All, I suddenly have this problem of not being able to run vpp. Tried both building and installing myself and using also vagrant as well. Both scenarios end up with the same error which is clib_socket_init: connect (fd 3, '/run/vpp/cli.sock'): No such file or directory Can any one help? if there is anything new that i am not aware of? i am following everything at https://wiki.fd.io/view/VPP/Pulling,_Building,_Running,_Hacking_and_Pushing_VPP_Code#Subsequent_Builds.27 Thanks in advance! Hadi -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11912): https://lists.fd.io/g/vpp-dev/message/11912 Mute This Topic: https://lists.fd.io/mt/29080648/21656 Mute #vpp: https://lists.fd.io/mk?hashtag=vpp=1480452 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [vpp-dev] Using prefetch and buffer_enqueue
> On 10 Jan 2019, at 07:15, Raj wrote: > > On Wed, Jan 9, 2019 at 4:18 PM Damjan Marion wrote: >>> On 9 Jan 2019, at 09:53, Raj wrote: >>> 1. static_always_inline void >>> vlib_buffer_enqueue_to_next (vlib_main_t * vm, vlib_node_runtime_t * node, >>> u32 * buffers, u16 * nexts, uword count) >>> >> >> This function simply gets array of buffer indices and array of next indices, >> and enqueues those buffers to be processed by those next nodes... > > Is this function only used in the case of feature arc, where some > packets satisfies certain criteria and moves to a different node? > Basically from where do we get the array of next indices? No, it can be used without feature arcs. > > Also in the code certain macros CLIB_HAVE_VEC128, CLIB_HAVE_VEC256 and > CLIB_HAVE_VEC512 are defined. I could not figure out what these do. They don't do anything, they are just set or not set depending on availability of vector instructions on the target cpu. > >>> type can be either LOAD or STORE. What is the purpose of these two >>> operations? >> On x86, there was only load prefetch for a long time, recently store >> prefetch is introduced >> with Skylake microarchitecture. You can find explanation here: > > Based on code walkthrough, one thing I have observed is where ever > .function is defined, static binding happens. In other nodes, dynamic > binding based on the macro VLIB_NODE_FN happens. yep > So If I understand > correctly, we have to use STORE in the latter case. But we can use > LOAD as well. There is no hard and fast rule. Please correct me if I'm > wrong. It is good practice to pick the one which you really need. i.e. if you want to prefetch for store, just use STORE, if store is not available compiler will do LOAD instead... -- Damjan -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11911): https://lists.fd.io/g/vpp-dev/message/11911 Mute This Topic: https://lists.fd.io/mt/28982509/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
Re: [SUSPECTED SPAM] [vpp-dev] IPFIX Nat Logging
Dear Ole, No I don't see any things on the wire. Ipfix logging doesn't work in flowprobe and nat mode for me . my vpp version is stable18.10 Warm Regards, -=-=-=-=-=-=-=-=-=-=-=- Links: You receive all messages sent to this group. View/Reply Online (#11910): https://lists.fd.io/g/vpp-dev/message/11910 Mute This Topic: https://lists.fd.io/mt/28911869/21656 Group Owner: vpp-dev+ow...@lists.fd.io Unsubscribe: https://lists.fd.io/g/vpp-dev/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
