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authorVlad Buslov <vladbu@mellanox.com>2019-08-26 16:45:01 +0300
committerDavid S. Miller <davem@davemloft.net>2019-08-26 14:17:43 -0700
commitc9f14470d04830de217f9d28fcd0deffd7e8c0b1 (patch)
treec9872a94afc6f2b5c92c1452d8144024c25c4fec /include/net
parentnet: sched: notify classifier on successful offload add/delete (diff)
downloadlinux-dev-c9f14470d04830de217f9d28fcd0deffd7e8c0b1.tar.xz
linux-dev-c9f14470d04830de217f9d28fcd0deffd7e8c0b1.zip
net: sched: add API for registering unlocked offload block callbacks
Extend struct flow_block_offload with "unlocked_driver_cb" flag to allow registering and unregistering block hardware offload callbacks that do not require caller to hold rtnl lock. Extend tcf_block with additional lockeddevcnt counter that is incremented for each non-unlocked driver callback attached to device. This counter is necessary to conditionally obtain rtnl lock before calling hardware callbacks in following patches. Register mlx5 tc block offload callbacks as "unlocked". Signed-off-by: Vlad Buslov <vladbu@mellanox.com> Acked-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
-rw-r--r--include/net/flow_offload.h1
-rw-r--r--include/net/sch_generic.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index 757fa84de654..fc881875f856 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -284,6 +284,7 @@ struct flow_block_offload {
enum flow_block_command command;
enum flow_block_binder_type binder_type;
bool block_shared;
+ bool unlocked_driver_cb;
struct net *net;
struct flow_block *block;
struct list_head cb_list;
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index c4fbbaff30a2..43f5b7ed02bd 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -408,6 +408,7 @@ struct tcf_block {
bool keep_dst;
atomic_t offloadcnt; /* Number of oddloaded filters */
unsigned int nooffloaddevcnt; /* Number of devs unable to do offload */
+ unsigned int lockeddevcnt; /* Number of devs that require rtnl lock. */
struct {
struct tcf_chain *chain;
struct list_head filter_chain_list;