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authorLinus Torvalds <torvalds@linux-foundation.org>2017-08-27 17:01:54 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2017-08-27 17:01:54 -0700
commitfff4e7a0e680b29bb8006cc37921562ef4b8e8df (patch)
tree45a840c09d77b4a0c7e97f974c78fe24d202105d
parenta8b169afbf06a678437632709caac98e16f99263 (diff)
parent0eb46345364d7318b11068c46e8a68d5dc10f65e (diff)
downloadlinux-stericsson-fff4e7a0e680b29bb8006cc37921562ef4b8e8df.tar.gz
Merge tag 'ntb-4.13-bugfixes' of git://github.com/jonmason/ntb
Pull NTB fixes from Jon Mason: "NTB bug fixes to address an incorrect ntb_mw_count reference in the NTB transport, improperly bringing down the link if SPADs are corrupted, and an out-of-order issue regarding link negotiation and data passing" * tag 'ntb-4.13-bugfixes' of git://github.com/jonmason/ntb: ntb: ntb_test: ensure the link is up before trying to configure the mws ntb: transport shouldn't disable link due to bogus values in SPADs ntb: use correct mw_count function in ntb_tool and ntb_transport
-rw-r--r--drivers/ntb/ntb_transport.c6
-rw-r--r--drivers/ntb/test/ntb_tool.c2
-rwxr-xr-xtools/testing/selftests/ntb/ntb_test.sh4
3 files changed, 7 insertions, 5 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c
index 9a03c5871efe..f58d8e305323 100644
--- a/drivers/ntb/ntb_transport.c
+++ b/drivers/ntb/ntb_transport.c
@@ -924,10 +924,8 @@ out1:
ntb_free_mw(nt, i);
/* if there's an actual failure, we should just bail */
- if (rc < 0) {
- ntb_link_disable(ndev);
+ if (rc < 0)
return;
- }
out:
if (ntb_link_is_up(ndev, NULL, NULL) == 1)
@@ -1059,7 +1057,7 @@ static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev)
int node;
int rc, i;
- mw_count = ntb_mw_count(ndev, PIDX);
+ mw_count = ntb_peer_mw_count(ndev);
if (!ndev->ops->mw_set_trans) {
dev_err(&ndev->dev, "Inbound MW based NTB API is required\n");
diff --git a/drivers/ntb/test/ntb_tool.c b/drivers/ntb/test/ntb_tool.c
index f002bf48a08d..a69815c45ce6 100644
--- a/drivers/ntb/test/ntb_tool.c
+++ b/drivers/ntb/test/ntb_tool.c
@@ -959,7 +959,7 @@ static int tool_probe(struct ntb_client *self, struct ntb_dev *ntb)
tc->ntb = ntb;
init_waitqueue_head(&tc->link_wq);
- tc->mw_count = min(ntb_mw_count(tc->ntb, PIDX), MAX_MWS);
+ tc->mw_count = min(ntb_peer_mw_count(tc->ntb), MAX_MWS);
for (i = 0; i < tc->mw_count; i++) {
rc = tool_init_mw(tc, i);
if (rc)
diff --git a/tools/testing/selftests/ntb/ntb_test.sh b/tools/testing/selftests/ntb/ntb_test.sh
index 1c12b5855e4f..5fc7ad359e21 100755
--- a/tools/testing/selftests/ntb/ntb_test.sh
+++ b/tools/testing/selftests/ntb/ntb_test.sh
@@ -333,6 +333,10 @@ function ntb_tool_tests()
link_test $LOCAL_TOOL $REMOTE_TOOL
link_test $REMOTE_TOOL $LOCAL_TOOL
+ #Ensure the link is up on both sides before continuing
+ write_file Y $LOCAL_TOOL/link_event
+ write_file Y $REMOTE_TOOL/link_event
+
for PEER_TRANS in $(ls $LOCAL_TOOL/peer_trans*); do
PT=$(basename $PEER_TRANS)
write_file $MW_SIZE $LOCAL_TOOL/$PT