net/smc: Add diagnostic information to link structure

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During link creation add net-device ifindex and ib-device
name to link structure. This is needed for diagnostic purposes.

When diagnostic information is gathered, we need to traverse
device, linkgroup and link structures, to be able to do that
we need to hold a spinlock for the linkgroup list, without this
diagnostic information in link structure, another device list
mutex holding would be necessary to dereference the device
pointer in the link structure which would be impossible when
holding a spinlock already.

Signed-off-by: Guvenc Gulce <guvenc@linux.ibm.com>
Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Guvenc Gulce 2020-12-01 20:20:41 +01:00 • committed by Jakub Kicinski

parent 3d453f53c7

commit 6443b2f60e

2 changed files with 12 additions and 0 deletions

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10

net/smc/smc_core.c

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2

net/smc/smc_core.h

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