linux: add cxi* osdev for Cray Slingshot devices#764
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bgoglin wants to merge 1 commit intoopen-mpi:masterfrom
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linux: add cxi* osdev for Cray Slingshot devices#764bgoglin wants to merge 1 commit intoopen-mpi:masterfrom
bgoglin wants to merge 1 commit intoopen-mpi:masterfrom
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We already have hsi*/hsn* devices for network interfaces. libfabric rather uses CXI devices. Add those devices too, so that we don't have to make sure whether cxiX matches hsnX on machines with multiple NICs (quite common). Add with CassiniVersion and NID attributes. Gather the cxi class in hwloc-gather-topology Example of output on a Cray EX255a: $ lstopo --only osdev -v | grep Slings OSDev[Network](Slingshot) L#0 (Address=02:00:00:00:68:63) "hsn0" OSDev[Network](Slingshot) L#1 (CassiniVersion=1.1 NID=0x6863) "cxi0" OSDev[Network](Slingshot) L#4 (Address=02:00:00:00:68:62) "hsn1" OSDev[Network](Slingshot) L#5 (CassiniVersion=1.1 NID=0x6862) "cxi1" OSDev[Network](Slingshot) L#7 (Address=02:00:00:00:68:a3) "hsn2" OSDev[Network](Slingshot) L#8 (CassiniVersion=1.1 NID=0x68a3) "cxi2" OSDev[Network](Slingshot) L#10 (Address=02:00:00:00:68:a2) "hsn3" OSDev[Network](Slingshot) L#11 (CassiniVersion=1.1 NID=0x68a2) "cxi3" Thanks to Edgar Leon for the suggestion Signed-off-by: Brice Goglin <Brice.Goglin@inria.fr>
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We already have hsi*/hsn* devices for network interfaces. libfabric rather uses CXI devices. Add those devices too, so that we don't have to make sure whether cxiX matches hsnX on machines with multiple NICs (quite common).
Add with CassiniVersion and NID attributes.
Gather the cxi class in hwloc-gather-topology
Example of output on a Cray EX255a:
$ lstopo --only osdev -v | grep Slings
OSDevNetwork L#0 (Address=02:00:00:00:68:63) "hsn0" OSDevNetwork L#1 (CassiniVersion=1.1 NID=0x6863) "cxi0" OSDevNetwork L#4 (Address=02:00:00:00:68:62) "hsn1" OSDevNetwork L#5 (CassiniVersion=1.1 NID=0x6862) "cxi1" OSDevNetwork L#7 (Address=02:00:00:00:68:a3) "hsn2" OSDevNetwork L#8 (CassiniVersion=1.1 NID=0x68a3) "cxi2" OSDevNetwork L#10 (Address=02:00:00:00:68:a2) "hsn3" OSDevNetwork L#11 (CassiniVersion=1.1 NID=0x68a2) "cxi3"
Thanks to Edgar Leon for the suggestion