kernel/linux.git/net/sched/act_simple.c, branch v6.1.174

net: sched: act_simple: get rid of tcf_simp_walker and tcf_simp_search

2022-09-09T07:24:42+00:00

tcf_simp_walker() and tcf_simp_search() do the same thing as generic walk/search function, so remove them. Signed-off-by: Zhengchao Shao Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller

net: sched: act: move global static variable net_id to tc_action_ops

2022-09-09T07:24:41+00:00

Each tc action module has a corresponding net_id, so put net_id directly into the structure tc_action_ops. Signed-off-by: Zhengchao Shao Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller

flow_offload: fill flags to action structure

2021-12-19T14:08:47+00:00

Fill flags to action structure to allow user control if the action should be offloaded to hardware or not. Signed-off-by: Baowen Zheng Signed-off-by: Louis Peens Signed-off-by: Simon Horman Acked-by: Jamal Hadi Salim Signed-off-by: David S. Miller

net: sched: Merge Qdisc::bstats and Qdisc::cpu_bstats data types

2021-10-18T11:54:41+00:00

The only factor differentiating per-CPU bstats data type (struct gnet_stats_basic_cpu) from the packed non-per-CPU one (struct gnet_stats_basic_packed) was a u64_stats sync point inside the former. The two data types are now equivalent: earlier commits added a u64_stats sync point to the latter. Combine both data types into "struct gnet_stats_basic_sync". This eliminates redundancy and simplifies the bstats read/write APIs. Use u64_stats_t for bstats "packets" and "bytes" data types. On 64-bit architectures, u64_stats sync points do not use sequence counter protection. Signed-off-by: Ahmed S. Darwish Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: David S. Miller

net_sched: refactor TC action init API

2021-08-02T09:24:38+00:00

TC action ->init() API has 10 parameters, it becomes harder to read. Some of them are just boolean and can be replaced by flags. Similarly for the internal API tcf_action_init() and tcf_exts_validate(). This patch converts them to flags and fold them into the upper 16 bits of "flags", whose lower 16 bits are still reserved for user-space. More specifically, the following kernel flags are introduced: TCA_ACT_FLAGS_POLICE replace 'name' in a few contexts, to distinguish whether it is compatible with policer. TCA_ACT_FLAGS_BIND replaces 'bind', to indicate whether this action is bound to a filter. TCA_ACT_FLAGS_REPLACE replaces 'ovr' in most contexts, means we are replacing an existing action. TCA_ACT_FLAGS_NO_RTNL replaces 'rtnl_held' but has the opposite meaning, because we still hold RTNL in most cases. The only user-space flag TCA_ACT_FLAGS_NO_PERCPU_STATS is untouched and still stored as before. I have tested this patch with tdc and I do not see any failure related to this patch. Tested-by: Vlad Buslov Acked-by: Jamal Hadi Salim Cc: Jiri Pirko Signed-off-by: Cong Wang Signed-off-by: David S. Miller

treewide: rename nla_strlcpy to nla_strscpy.

2020-11-16T16:08:54+00:00

Calls to nla_strlcpy are now replaced by calls to nla_strscpy which is the new name of this function. Signed-off-by: Francis Laniel Reviewed-by: Kees Cook Signed-off-by: Jakub Kicinski

net_sched: defer tcf_idr_insert() in tcf_action_init_1()

2020-09-25T02:46:21+00:00

All TC actions call tcf_idr_insert() for new action at the end of their ->init(), so we can actually move it to a central place in tcf_action_init_1(). And once the action is inserted into the global IDR, other parallel process could free it immediately as its refcnt is still 1, so we can not fail after this, we need to move it after the goto action validation to avoid handling the failure case after insertion. This is found during code review, is not directly triggered by syzbot. And this prepares for the next patch. Cc: Vlad Buslov Cc: Jamal Hadi Salim Cc: Jiri Pirko Signed-off-by: Cong Wang Signed-off-by: David S. Miller

net_sched: extend packet counter to 64bit

2019-11-06T02:20:55+00:00

After this change, qdisc packet counter is no longer a 32bit quantity. We still export 32bit values to user. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller

net: sched: update action implementations to support flags

2019-10-31T01:07:51+00:00

Extend struct tc_action with new "tcfa_flags" field. Set the field in tcf_idr_create() function and provide new helper tcf_idr_create_from_flags() that derives 'cpustats' boolean from flags value. Update individual hardware-offloaded actions init() to pass their "flags" argument to new helper in order to skip percpu stats allocation when user requested it through flags. Signed-off-by: Vlad Buslov Signed-off-by: David S. Miller

net: sched: extend TCA_ACT space with TCA_ACT_FLAGS

2019-10-31T01:07:50+00:00

Extend TCA_ACT space with nla_bitfield32 flags. Add TCA_ACT_FLAGS_NO_PERCPU_STATS as the only allowed flag. Parse the flags in tcf_action_init_1() and pass resulting value as additional argument to a_o->init(). Signed-off-by: Vlad Buslov Signed-off-by: David S. Miller