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authorKarsten Graul <kgraul@linux.ibm.com>2020-04-29 17:10:43 +0200
committerDavid S. Miller <davem@davemloft.net>2020-04-29 12:26:32 -0700
commitd854fcbfaeda9748c85de296fbe07b7763a1939c (patch)
treec056b8e27021556cc3b69dae521c3b1ef5ccfc63 /net/smc/smc_wr.c
parente07d31dc16b0d77ff6b3f71cafe3a825fb80bed4 (diff)
net/smc: add new link state and related helpers
Before a link can be reused it must have been cleared. Lowest current link state is INACTIVE, which does not mean that the link is already cleared. Add a new state UNUSED that is set when the link is cleared and can be reused. Add helper smc_llc_usable_link() to find an active link in a link group, and smc_link_usable() to determine if a link is usable. 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>
Diffstat (limited to 'net/smc/smc_wr.c')
-rw-r--r--net/smc/smc_wr.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/smc/smc_wr.c b/net/smc/smc_wr.c
index 337ee52ad3d3..93223628c002 100644
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -207,7 +207,7 @@ int smc_wr_tx_get_free_slot(struct smc_link *link,
} else {
rc = wait_event_interruptible_timeout(
link->wr_tx_wait,
- link->state == SMC_LNK_INACTIVE ||
+ !smc_link_usable(link) ||
lgr->terminating ||
(smc_wr_tx_get_free_slot_index(link, &idx) != -EBUSY),
SMC_WR_TX_WAIT_FREE_SLOT_TIME);