[dpdk-dev] Question on using SR-IOV with dpdk apps

[Anjali Kulkarni]

It seems to have detected all 4. But I do see a MAC address not valid:
…
…
(scrolled up)

EAL: PCI device 0000:04:10.1 on NUMA socket 0                      │
EAL:   probe driver: 8086:10ed rte_ixgbevf_pmd                     │
EAL:   PCI memory mapped at 0x7fd39743e000                         │
EAL:   PCI memory mapped at 0x7fd39743a000                         │
PMD:    The MAC address is not valid.                              │
 The most likely cause of this error is that the VM host    │
 has not assigned a valid MAC address to this VF device.    │
 Please consult the DPDK Release Notes (FAQ section) for    │
 a possible solution to this problem.                       │
EAL: PCI device 0000:04:10.2 on NUMA socket 0                      │
EAL:   probe driver: 8086:10ed rte_ixgbevf_pmd                     │
EAL:   PCI memory mapped at 0x7fd397436000                         │
EAL:   PCI memory mapped at 0x7fd397432000                         │
EAL: PCI device 0000:04:10.3 on NUMA socket 0                      │
EAL:   probe driver: 8086:10ed rte_ixgbevf_pmd                     │
EAL:   PCI memory mapped at 0x7fd39742e000                         │
EAL:   PCI memory mapped at 0x7fd39742a000                         │
PMD:    The MAC address is not valid.                              │
 The most likely cause of this error is that the VM host    │
 has not assigned a valid MAC address to this VF device.    │
 Please consult the DPDK Release Notes (FAQ section) for    │
 a possible solution to this problem.



On 8/4/14 12:53 PM, "Richardson, Bruce" <bruce.richardson at intel.com> wrote:

>
>> -----Original Message-----
>> From: dev [mailto:dev-bounces at dpdk.org] On Behalf Of Anjali Kulkarni
>> Sent: Monday, August 04, 2014 12:45 PM
>> To: dev at dpdk.org
>> Subject: Re: [dpdk-dev] Question on using SR-IOV with dpdk apps
>> 
>> Forgot to clarify, this is a specialized app, and the first parameter of
>> each () is the dpdk port no.
>> 
>> On 8/4/14 12:43 PM, "Anjali Kulkarni" <anjali at juniper.net> wrote:
>> 
>> >Hi,
>> >
>> >I am using SR-IOV and pass through to run a DPDK app. I am running it
>>on
>> >host. SR-IOV should split the NIC into multiple Vfs. I have split each
>>NIC
>> >into 2 Vfs. However, when I run the DPDK app, I get error initializing
>>the
>> >port no.2 of DPDK.
>> >I am running the app with these options:
>> >--rx "(0,0,0,1),(1,0,2,1), (2,0,3,1), (3,0,4,1)" --tx "(0,1), (1,1),
>> >(2,1), (3,1)"
>> >
>> >This is for 2 physical NICs, each having 2 Vfs. The error I get is:
>> >
>> >Initializing NIC port 0 ...                                    |
>> >|RPIOIF DETACHED
>> >|Initializing NIC port 0 RX queue 0 ...                         |
>> >|
>> >|Initializing NIC port 0 TX queue 0 ...                         |
>> >|HOSTIF DETACHED
>> >|Initializing NIC port 1 ...                                    |
>> >|
>> >|Initializing NIC port 1 RX queue 0 ...                         |
>> >|
>> >|Initializing NIC port 1 TX queue 0 ...                         |
>> >|
>> >|Initializing NIC port 2 ...                                    |
>> >|
>> >|PANIC in app_init_nics():                                      |
>> >|
>> >|Cannot init NIC port 2 (-22)
>> >
>> >
>> >Can someone pls clarify how DPDK views it's port nos, i.e. Scans the
>> >devices and sees each nic? I see 4 /dev/uioX devices. I assume it scans
>> >for these igb_uio devices. These are present. Then why can it not
>>detect
>> >the other 2 NICs?
>> >
>> >Thanks
>> >Anjali
>> >
>
>Hi,
>
>For debugging issues with PCI devices not being found, can you please
>include the output from the EAL on startup, especially any messages
>concerning the PCI bus scan being done.
>
>Regards,
>/Bruce