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handle dpdk port "siblings" #40

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david-marchand opened this issue Jul 10, 2024 · 1 comment
Open

handle dpdk port "siblings" #40

david-marchand opened this issue Jul 10, 2024 · 1 comment
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@david-marchand
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When releasing a DPDK port and asking for detaching/freeing its associated HW resources, care must be taken not to break port "siblings" that were sharing those HW resources.

See testpmd or OVS:
https://git.dpdk.org/dpdk/tree/app/test-pmd/testpmd.c#n3674
https://github.com/openvswitch/ovs/blob/main/lib/netdev-dpdk.c#L1747
christophefontaine referenced this issue in christophefontaine/grout Jul 19, 2024
@christophefontaine
infra/port: handle siblings on removal
40d97f5 
On device removal, check if the port has siblings
before calling rte_dev_remove.

Fixes: https://github.com/rjarry/grout/issues/40
Signed-off-by: Christophe Fontaine <cfontain@redhat.com>
@christophefontaine
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Which hardware relies on siblings ?
I'd like to test rjarry/grout@main...christophefontaine:grout:issue_40

christophefontaine referenced this issue in christophefontaine/grout Jul 24, 2024
@christophefontaine
infra/port: handle siblings on removal
5b2e1e3 
On device removal, check if the port has siblings
before calling rte_dev_remove.

Fixes: https://github.com/rjarry/grout/issues/40
Signed-off-by: Christophe Fontaine <cfontain@redhat.com>
@christophefontaine christophefontaine added the bug Something isn't working label Aug 1, 2024
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@christophefontaine @david-marchand