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| author | Sriharsha Basavapatna via dev <ovs-dev@openvswitch.org> | 2018-10-18 21:43:12 +0530 |
|---|---|---|
| committer | Simon Horman <horms@verge.net.au> | 2018-10-19 11:27:45 +0200 |
| commit | 738c785ff16288cf758470348de4106dd5b4416a (patch) | |
| tree | 294d2bfce02816a5ad923aca0934b20b4125cd56 /lib/netdev.c | |
| parent | d7abfe39cfd234227bb6174b7f959a16dc803b83 (diff) | |
| download | openvswitch-738c785ff16288cf758470348de4106dd5b4416a.tar.gz | |
dpif-netlink: Detect Out-Of-Resource condition on a netdev
This is the first patch in the patch-set to support dynamic rebalancing
of offloaded flows.
The patch detects OOR condition on a netdev port when ENOSPC error is
returned by TC-Flower while adding a flow rule. A new structure is added
to the netdev called "netdev_hw_info", to store OOR related information
required to perform dynamic offload-rebalancing.
Signed-off-by: Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com>
Co-authored-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Signed-off-by: Venkat Duvvuru <venkatkumar.duvvuru@broadcom.com>
Reviewed-by: Sathya Perla <sathya.perla@broadcom.com>
Reviewed-by: Ben Pfaff <blp@ovn.org>
Signed-off-by: Simon Horman <simon.horman@netronome.com>
Diffstat (limited to 'lib/netdev.c')
| -rw-r--r-- | lib/netdev.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/netdev.c b/lib/netdev.c index 722ea89bf..708a4bbd7 100644 --- a/lib/netdev.c +++ b/lib/netdev.c @@ -415,6 +415,7 @@ netdev_open(const char *name, const char *type, struct netdev **netdevp) netdev->reconfigure_seq = seq_create(); netdev->last_reconfigure_seq = seq_read(netdev->reconfigure_seq); + netdev->hw_info.oor = false; netdev->node = shash_add(&netdev_shash, name, netdev); /* By default enable one tx and rx queue per netdev. */ @@ -2253,6 +2254,31 @@ netdev_get_block_id(struct netdev *netdev) : 0); } +/* + * Get the value of the hw info parameter specified by type. + * Returns the value on success (>= 0). Returns -1 on failure. + */ +int +netdev_get_hw_info(struct netdev *netdev, int type) +{ + if (type == HW_INFO_TYPE_OOR) { + return netdev->hw_info.oor; + } + + return -1; +} + +/* + * Set the value of the hw info parameter specified by type. + */ +void +netdev_set_hw_info(struct netdev *netdev, int type, int val) +{ + if (type == HW_INFO_TYPE_OOR) { + netdev->hw_info.oor = val; + } +} + bool netdev_is_flow_api_enabled(void) { @@ -2489,6 +2515,14 @@ netdev_free_custom_stats_counters(struct netdev_custom_stats *custom_stats) } } +static bool netdev_offload_rebalance_policy = false; + +bool +netdev_is_offload_rebalance_policy_enabled(void) +{ + return netdev_offload_rebalance_policy; +} + #ifdef __linux__ static void netdev_ports_flow_init(void) |