Initializing and starting port on primary but transmitting on secondary I get port not ready

[Anna Tauzzi]

Thank you for your interest in the problem. It seems that the error message
was due to the passing of option --allow 0000:00.0 by mistake to the
secondary too.
The primary correctly did all initialization phases:

rte_dev_probe(vf)
rte_eth_dev_configure(port_id, ... );
rte_eth_dev_adjust_nb_rx_tx_desc(port_id, ... );
rte_eth_rx_queue_setup(port_id, .... );
rte_eth_tx_queue_setup(port_id, ... );
rte_eth_dev_start(port_id ... );

 and the secondary did nothing apart from the tx_burst but the secondary
didn't see the port at all due to --allow wrong options.

BR,
Anna.


Il giorno gio 1 set 2022 alle ore 17:22 Stephen Hemminger <
stephen at networkplumber.org> ha scritto:

> On Thu, 1 Sep 2022 09:33:54 +0200
> Anna Tauzzi <admin at argonnetech.net> wrote:
>
> > I'm using the Mellanox Connect X5:
> >
> > pci at 0000:3b:00.0  enp59s0f0np0   network        MT27800 Family
> [ConnectX-5]
> > pci at 0000:3b:00.1  enp59s0f1np1   network        MT27800 Family
> [ConnectX-5]
> > pci at 0000:3b:00.2  enp59s0f0v0    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:00.3  enp59s0f0v1    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:00.4  enp59s0f0v2    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:00.5  enp59s0f0v3    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:04.2  enp59s0f1v0    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:04.3  enp59s0f1v1    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:04.4  enp59s0f1v2    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> > pci at 0000:3b:04.5  enp59s0f1v3    network        MT27800 Family
> [ConnectX-5
> > Virtual Function]
> >
> > This is the message:
> > lcore 6 called tx_pkt_burst for not ready port 0
> > 8: [/lib/x86_64-linux-gnu/libc.so.6(+0x126a00) [0x7ffff7c77a00]]
> > 7: [/lib/x86_64-linux-gnu/libc.so.6(+0x94b43) [0x7ffff7be5b43]]
> > 6: [/usr/local/lib/librte_eal.so.22(+0x1559a) [0x7ffff7d8e59a]]
> > 5: [build/simple_eth_tx_mp(+0x1a0c7) [0x55555556e0c7]]
> > 4: [build/simple_eth_tx_mp(+0x19f89) [0x55555556df89]]
> > 3: [build/simple_eth_tx_mp(+0x423c) [0x55555555823c]]
> > 2: [/usr/local/lib/librte_ethdev.so.22(+0x7cbc) [0x7ffff7eb3cbc]]
> > 1: [/usr/local/lib/librte_eal.so.22(rte_dump_stack+0x32)
> [0x7ffff7daf152]]
> >
> > I'm having all sorts of problems with this Mellanox stuff, Intel cards
> are
> > much more user friendly.
> >
> > Just to recap:
> > * configure on primary and transmit on primary           ---> GOOD
> >
> > * configure on secondary and transmit on secondary  ---> SIGSEGV
> > Thread 4 "lcore-worker-6" received signal SIGSEGV, Segmentation fault.
> > [Switching to Thread 0x7ffff4346640 (LWP 7208)]
> > rte_eth_tx_burst (port_id=0, queue_id=0, tx_pkts=0x7ffff4344ac0,
> nb_pkts=1)
> > at /usr/local/include/rte_ethdev.h:5650
> > 5650            qd = p->txq.data[queue_id];
> > (gdb) print p->txq
> > $2 = {data = 0x0, clbk = 0x7ffff7f21528 <rte_eth_devices+8296>} (data is
> > NULL)
> >
> >
> > * configure on primary and transmit on secondary       ---> PORT NOT
> READY
> >
> > Do you know who should be notified of this problem? Should I open a bug
> on
> > DPDK bugzilla or file it to NVIDIA?
> >
> > Thx.
> >
> >
> >
> > Il giorno gio 1 set 2022 alle ore 03:25 Stephen Hemminger <
> > stephen at networkplumber.org> ha scritto:
> >
> > > On Wed, 31 Aug 2022 22:59:56 +0200
> > > Anna Tauzzi <admin at argonnetech.net> wrote:
> > >
> > > > I initialize a port with the following methods on a primary process:
> > > >
> > > > rte_dev_probe(vf)
> > > >
> > > > rte_eth_dev_configure(port_id, ... );
> > > >
> > > > rte_eth_dev_adjust_nb_rx_tx_desc(port_id, ... );
> > > >
> > > > rte_eth_rx_queue_setup(port_id, .... );
> > > >
> > > > rte_eth_tx_queue_setup(port_id, ... );
> > > >
> > > > rte_eth_dev_start(port_id ... );
> > > >
> > > >
> > > >
> > > > Then I use the rte_eth_tx_burst(port_id) in the secondary process
> but I
> > > get
> > > > this message:
> > > >
> > > > called tx_pkt_burst for not ready port 0
> > > >
> > > > Is this expected?
> > >
> > > No looks like a device driver bug. Which PMD?
>
> What version of rdma-core and kernel.
> There were some bugs in earlier versions around secondary process support.
> They were fixed, some users are using failsafe and mlx5 on Azure with
> secondary processes.
>
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