| Message ID | MEYP282MB3499AE42BCD2853B76BA81ECCDD79@MEYP282MB3499.AUSP282.PROD.OUTLOOK.COM |
|---|---|
| State | Accepted |
| Commit | ba462b358929e249448254d92e9058c6b4f3de61 |
| Headers | show |
| Series | [ovs-dev,1/2] dpif-netdev: Fix ALB parameters type mismatch. | expand |
| Context | Check | Description |
|---|---|---|
| ovsrobot/apply-robot | success | apply and check: success |
| ovsrobot/github-robot-_Build_and_Test | success | github build: passed |
| ovsrobot/intel-ovs-compilation | success | test: success |
On 24/05/2022 14:48, miterv@outlook.com wrote: > From: Lin Huang <linhuang@ruijie.com.cn> > > Currently the pmd-auto-lb-rebal-interval's value was not been > checked properly. > > It maybe a negative, or too big value (>2 weeks between rebalances), > which will be lead to a big unsigned value. So reset it to default > if the value exceeds the max permitted as described in vswitchd.xml. > > Fixes: 5bf84282482a ("Adding support for PMD auto load balancing") > Signed-off-by: Lin Huang <linhuang@ruijie.com.cn> Acked-by: Kevin Traynor <ktraynor@redhat.com> > --- > lib/dpif-netdev.c | 6 +++++- > tests/alb.at | 20 +++++++++++++++++++- > 2 files changed, 24 insertions(+), 2 deletions(-) > > diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c > index 95b154185..a69b570f6 100644 > --- a/lib/dpif-netdev.c > +++ b/lib/dpif-netdev.c > @@ -93,7 +93,8 @@ VLOG_DEFINE_THIS_MODULE(dpif_netdev); > /* Auto Load Balancing Defaults */ > #define ALB_IMPROVEMENT_THRESHOLD 25 > #define ALB_LOAD_THRESHOLD 95 > -#define ALB_REBALANCE_INTERVAL 1 /* 1 Min */ > +#define ALB_REBALANCE_INTERVAL 1 /* 1 Min */ > +#define MAX_ALB_REBALANCE_INTERVAL 20000 /* 20000 Min */ > #define MIN_TO_MSEC 60000 > > #define FLOW_DUMP_MAX_BATCH 50 > @@ -4883,6 +4884,9 @@ dpif_netdev_set_config(struct dpif *dpif, const struct smap *other_config) > rebalance_intvl = smap_get_ullong(other_config, > "pmd-auto-lb-rebal-interval", > ALB_REBALANCE_INTERVAL); > + if (rebalance_intvl > MAX_ALB_REBALANCE_INTERVAL) { > + rebalance_intvl = ALB_REBALANCE_INTERVAL; > + } > > /* Input is in min, convert it to msec. */ > rebalance_intvl = > diff --git a/tests/alb.at b/tests/alb.at > index 0036bd1f2..922185d61 100644 > --- a/tests/alb.at > +++ b/tests/alb.at > @@ -243,7 +243,25 @@ get_log_next_line_num > AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="0"]) > CHECK_ALB_PARAM([interval], [1 mins], [+$LINENUM]) > > -# No check for above max as it is only a documented max value and not a hard limit > +# Set new value > +get_log_next_line_num > +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="100"]) > +CHECK_ALB_PARAM([interval], [100 mins], [+$LINENUM]) > + > +# Set above max value > +get_log_next_line_num > +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="20001"]) > +CHECK_ALB_PARAM([interval], [1 mins], [+$LINENUM]) > + > +# Set new value > +get_log_next_line_num > +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="1000"]) > +CHECK_ALB_PARAM([interval], [1000 mins], [+$LINENUM]) > + > +# Set Negative value > +get_log_next_line_num > +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="-1"]) > +CHECK_ALB_PARAM([interval], [1 mins], [+$LINENUM]) > > OVS_VSWITCHD_STOP > AT_CLEANUP
diff --git a/lib/dpif-netdev.c b/lib/dpif-netdev.c index 95b154185..a69b570f6 100644 --- a/lib/dpif-netdev.c +++ b/lib/dpif-netdev.c @@ -93,7 +93,8 @@ VLOG_DEFINE_THIS_MODULE(dpif_netdev); /* Auto Load Balancing Defaults */ #define ALB_IMPROVEMENT_THRESHOLD 25 #define ALB_LOAD_THRESHOLD 95 -#define ALB_REBALANCE_INTERVAL 1 /* 1 Min */ +#define ALB_REBALANCE_INTERVAL 1 /* 1 Min */ +#define MAX_ALB_REBALANCE_INTERVAL 20000 /* 20000 Min */ #define MIN_TO_MSEC 60000 #define FLOW_DUMP_MAX_BATCH 50 @@ -4883,6 +4884,9 @@ dpif_netdev_set_config(struct dpif *dpif, const struct smap *other_config) rebalance_intvl = smap_get_ullong(other_config, "pmd-auto-lb-rebal-interval", ALB_REBALANCE_INTERVAL); + if (rebalance_intvl > MAX_ALB_REBALANCE_INTERVAL) { + rebalance_intvl = ALB_REBALANCE_INTERVAL; + } /* Input is in min, convert it to msec. */ rebalance_intvl = diff --git a/tests/alb.at b/tests/alb.at index 0036bd1f2..922185d61 100644 --- a/tests/alb.at +++ b/tests/alb.at @@ -243,7 +243,25 @@ get_log_next_line_num AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="0"]) CHECK_ALB_PARAM([interval], [1 mins], [+$LINENUM]) -# No check for above max as it is only a documented max value and not a hard limit +# Set new value +get_log_next_line_num +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="100"]) +CHECK_ALB_PARAM([interval], [100 mins], [+$LINENUM]) + +# Set above max value +get_log_next_line_num +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="20001"]) +CHECK_ALB_PARAM([interval], [1 mins], [+$LINENUM]) + +# Set new value +get_log_next_line_num +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="1000"]) +CHECK_ALB_PARAM([interval], [1000 mins], [+$LINENUM]) + +# Set Negative value +get_log_next_line_num +AT_CHECK([ovs-vsctl set open_vswitch . other_config:pmd-auto-lb-rebal-interval="-1"]) +CHECK_ALB_PARAM([interval], [1 mins], [+$LINENUM]) OVS_VSWITCHD_STOP AT_CLEANUP