diff options
| author | Chris Horn <hornc@cray.com> | 2016-02-15 10:25:46 -0500 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-02-20 14:29:23 -0800 |
| commit | 4ee23a84bf04894a38005bdc342513e423e5704b (patch) | |
| tree | ab54f658f97bc8c2434a9f9b6fb9aacf55324d35 /drivers/staging/lustre/include/linux | |
| parent | 4f0bedeccf1564171b51c513b1f23b02ffb9a462 (diff) | |
| download | op-kernel-dev-4ee23a84bf04894a38005bdc342513e423e5704b.zip op-kernel-dev-4ee23a84bf04894a38005bdc342513e423e5704b.tar.gz | |
staging: lustre: reflect down routes in /proc/sys/lnet/routes
We consider routes "down" if the router is down or the router
NI for the target network is down. This should be reflected
in the output of /proc/sys/lnet/routes
Signed-off-by: Chris Horn <hornc@cray.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-3679
Reviewed-on: http://review.whamcloud.com/7857
Reviewed-by: Cory Spitz <spitzcor@cray.com>
Reviewed-by: Isaac Huang <he.huang@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/lustre/include/linux')
| -rw-r--r-- | drivers/staging/lustre/include/linux/lnet/lib-lnet.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h index b0f80b4..b2e5017 100644 --- a/drivers/staging/lustre/include/linux/lnet/lib-lnet.h +++ b/drivers/staging/lustre/include/linux/lnet/lib-lnet.h @@ -64,6 +64,19 @@ extern lnet_t the_lnet; /* THE network */ /** exclusive lock */ #define LNET_LOCK_EX CFS_PERCPT_LOCK_EX +static inline int lnet_is_route_alive(lnet_route_t *route) +{ + /* gateway is down */ + if (!route->lr_gateway->lp_alive) + return 0; + /* no NI status, assume it's alive */ + if ((route->lr_gateway->lp_ping_feats & + LNET_PING_FEAT_NI_STATUS) == 0) + return 1; + /* has NI status, check # down NIs */ + return route->lr_downis == 0; +} + static inline int lnet_is_wire_handle_none(lnet_handle_wire_t *wh) { return (wh->wh_interface_cookie == LNET_WIRE_HANDLE_COOKIE_NONE && |
