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authorGavin Shan <gwshan@linux.vnet.ibm.com>2016-10-21 11:47:46 +1100
committerJoel Stanley <joel@jms.id.au>2016-10-21 12:08:37 +1030
commit5509e6ee766f6b910c3b81c02bae291fc1d9a806 (patch)
tree7d3652c23bfcb608d84f627345f7cd40d4e7b4fe
parent572e07fe62177e183e9ca68987adb372fe229ba2 (diff)
downloadtalos-obmc-linux-openbmc-4.4-20161021-1.tar.gz
talos-obmc-linux-openbmc-4.4-20161021-1.zip
net/ncsi: Improve HNCDSC AEN handleropenbmc-4.4-20161021-1
This improves AEN handler for Host Network Controller Driver Status Change (HNCDSC): * The channel's lock should be hold when accessing its state. * Do failover when host driver isn't ready. * Configure channel when host driver becomes ready. NOTE: The first one isn't applied to the code in dev-4.4. Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com> Signed-off-by: Joel Stanley <joel@jms.id.au>
-rw-r--r--net/ncsi/ncsi-aen.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ncsi/ncsi-aen.c b/net/ncsi/ncsi-aen.c
index 5bc087314510..26ac93dde60d 100644
--- a/net/ncsi/ncsi-aen.c
+++ b/net/ncsi/ncsi-aen.c
@@ -142,8 +142,7 @@ static int ncsi_aen_handler_hncdsc(struct ncsi_dev_priv *ndp,
ncm = &nc->nc_modes[NCSI_MODE_LINK];
hncdsc = (struct ncsi_aen_hncdsc_pkt *)h;
ncm->ncm_data[3] = ntohl(hncdsc->status);
- if (ndp->ndp_active_channel != nc ||
- ncm->ncm_data[3] & 0x1)
+ if (ndp->ndp_active_channel != nc)
return 0;
/* If this channel is the active one and the link doesn't
@@ -151,7 +150,8 @@ static int ncsi_aen_handler_hncdsc(struct ncsi_dev_priv *ndp,
* The logic here is exactly similar to what we do when link
* is down on the active channel.
*/
- ndp->ndp_flags |= NCSI_DEV_PRIV_FLAG_CHANGE_ACTIVE;
+ if (!(ncm->ncm_data[3] & 0x1))
+ ndp->ndp_flags |= NCSI_DEV_PRIV_FLAG_CHANGE_ACTIVE;
ncsi_suspend_dev(nd);
return 0;
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