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