net/smc: add smcr_port_err() and smcr_link_down() processing

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Call smcr_port_err() when an IB event reports an inactive IB device.
smcr_port_err() calls smcr_link_down() for all affected links.
smcr_link_down() either triggers the local DELETE_LINK processing, or
sends an DELETE_LINK LLC message to the SMC server to initiate the
processing.
The old handler function smc_port_terminate() is removed.
Add helper smcr_link_down_cond() to take a link down conditionally, and
smcr_link_down_cond_sched() to schedule the link_down processing to a
work.

Signed-off-by: Karsten Graul <kgraul@linux.ibm.com>
Reviewed-by: Ursula Braun <ubraun@linux.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Karsten Graul 2020-05-01 12:48:08 +02:00 • committed by David S. Miller

parent 1f90a05d9f

commit 541afa10c1

4 changed files with 98 additions and 32 deletions

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119

net/smc/smc_core.c

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6

net/smc/smc_core.h

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2

net/smc/smc_ib.c

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3

net/smc/smc_llc.h

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