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net: sched: cls_api: add skip_sw counter

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Maintain a count of skip_sw filters.

This counter is protected by the cb_lock, and is updated
at the same time as offloadcnt.

Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Asbjørn Sloth Tønnesen 2024-03-25 20:47:34 +00:00 • committed by David S. Miller
parent fd2162a501
commit f631ef39d8
2 changed files with 5 additions and 0 deletions
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1
include/net/sch_generic.h
View file

@ -471,6 +471,7 @@ struct tcf_block {
struct flow_block flow_block; struct flow_block flow_block;
struct list_head owner_list; struct list_head owner_list;
bool keep_dst; bool keep_dst;
atomic_t skipswcnt; /* Number of skip_sw filters */
atomic_t offloadcnt; /* Number of oddloaded filters */ atomic_t offloadcnt; /* Number of oddloaded filters */
unsigned int nooffloaddevcnt; /* Number of devs unable to do offload */ unsigned int nooffloaddevcnt; /* Number of devs unable to do offload */
unsigned int lockeddevcnt; /* Number of devs that require rtnl lock. */ unsigned int lockeddevcnt; /* Number of devs that require rtnl lock. */

4
net/sched/cls_api.c
View file

@ -3483,6 +3483,8 @@ static void tcf_block_offload_inc(struct tcf_block *block, u32 *flags)
if (*flags & TCA_CLS_FLAGS_IN_HW) if (*flags & TCA_CLS_FLAGS_IN_HW)
return; return;
*flags |= TCA_CLS_FLAGS_IN_HW; *flags |= TCA_CLS_FLAGS_IN_HW;
if (tc_skip_sw(*flags))
atomic_inc(&block->skipswcnt);
atomic_inc(&block->offloadcnt); atomic_inc(&block->offloadcnt);
} }
@ -3491,6 +3493,8 @@ static void tcf_block_offload_dec(struct tcf_block *block, u32 *flags)
if (!(*flags & TCA_CLS_FLAGS_IN_HW)) if (!(*flags & TCA_CLS_FLAGS_IN_HW))
return; return;
*flags &= ~TCA_CLS_FLAGS_IN_HW; *flags &= ~TCA_CLS_FLAGS_IN_HW;
if (tc_skip_sw(*flags))
atomic_dec(&block->skipswcnt);
atomic_dec(&block->offloadcnt); atomic_dec(&block->offloadcnt);
} }