From: Ursula Braun <ubraun@linux.vnet.ibm.com>
Date: Thu, 25 Jan 2018 11:15:33 +0100
Subject: net/smc: terminate link group for ib_post_send problems
Patch-mainline: v4.16-rc1
Git-commit: b4772b3a87b772401e2af1c894fef323fb5c6e7c
References: bsc#1103992 FATE#326009
If ib_post_send() fails, terminate all connections of this
link group.
Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
net/smc/smc_tx.c | 4 +++-
net/smc/smc_wr.c | 8 +++++++-
2 files changed, 10 insertions(+), 2 deletions(-)
--- a/net/smc/smc_tx.c
+++ b/net/smc/smc_tx.c
@@ -244,8 +244,10 @@ static int smc_tx_rdma_write(struct smc_
peer_rmbe_offset;
rdma_wr.rkey = lgr->rtokens[conn->rtoken_idx][SMC_SINGLE_LINK].rkey;
rc = ib_post_send(link->roce_qp, &rdma_wr.wr, &failed_wr);
- if (rc)
+ if (rc) {
conn->local_tx_ctrl.conn_state_flags.peer_conn_abort = 1;
+ smc_lgr_terminate(lgr);
+ }
return rc;
}
--- a/net/smc/smc_wr.c
+++ b/net/smc/smc_wr.c
@@ -238,8 +238,14 @@ int smc_wr_tx_send(struct smc_link *link
pend = container_of(priv, struct smc_wr_tx_pend, priv);
rc = ib_post_send(link->roce_qp, &link->wr_tx_ibs[pend->idx],
&failed_wr);
- if (rc)
+ if (rc) {
+ struct smc_link_group *lgr =
+ container_of(link, struct smc_link_group,
+ lnk[SMC_SINGLE_LINK]);
+
smc_wr_tx_put_slot(link, priv);
+ smc_lgr_terminate(lgr);
+ }
return rc;
}