diff mbox series

[net-next,v2,2/9] net/sched: act_pedit, setup offload action for action stats query

Message ID 20230205135525.27760-3-ozsh@nvidia.com (mailing list archive)
State Superseded
Delegated to: Netdev Maintainers
Headers show
Series add support for per action hw stats | expand

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netdev/fixes_present success Fixes tag not required for -next series
netdev/subject_prefix success Link
netdev/cover_letter success Series has a cover letter
netdev/patch_count success Link
netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 0 this patch: 0
netdev/cc_maintainers warning 5 maintainers not CCed: pabeni@redhat.com kuba@kernel.org edumazet@google.com xiyou.wangcong@gmail.com davem@davemloft.net
netdev/build_clang success Errors and warnings before: 0 this patch: 0
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netdev/verify_signedoff success Signed-off-by tag matches author and committer
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netdev/verify_fixes success No Fixes tag
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netdev/checkpatch warning WARNING: line length of 88 exceeds 80 columns WARNING: line length of 96 exceeds 80 columns
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Commit Message

Oz Shlomo Feb. 5, 2023, 1:55 p.m. UTC
A single tc pedit action may be translated to multiple flow_offload
actions.
Offload only actions that translate to a single pedit command value.

Signed-off-by: Oz Shlomo <ozsh@nvidia.com>

---
Change log:

V1 -> V2:
    - Add extack message on error
    - Assign the flow action id outside the for loop.
      Ensure the rest of the pedit actions follow the assigned id.
---
 net/sched/act_pedit.c | 28 +++++++++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

Comments

Simon Horman Feb. 6, 2023, 10:49 a.m. UTC | #1
On Sun, Feb 05, 2023 at 03:55:18PM +0200, Oz Shlomo wrote:
> A single tc pedit action may be translated to multiple flow_offload
> actions.
> Offload only actions that translate to a single pedit command value.
> 
> Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
> 
> ---
> Change log:
> 
> V1 -> V2:
>     - Add extack message on error
>     - Assign the flow action id outside the for loop.
>       Ensure the rest of the pedit actions follow the assigned id.
> ---
>  net/sched/act_pedit.c | 28 +++++++++++++++++++++++++++-
>  1 file changed, 27 insertions(+), 1 deletion(-)
> 
> diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
> index c42fcc47dd6d..dae88e205cb1 100644
> --- a/net/sched/act_pedit.c
> +++ b/net/sched/act_pedit.c
> @@ -545,7 +545,33 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
>  		}
>  		*index_inc = k;
>  	} else {
> -		return -EOPNOTSUPP;
> +		struct flow_offload_action *fl_action = entry_data;
> +		u32 cmd = tcf_pedit_cmd(act, 0);
> +		u32 last_cmd;
> +		int k;
> +
> +		switch (cmd) {
> +		case TCA_PEDIT_KEY_EX_CMD_SET:
> +			fl_action->id = FLOW_ACTION_MANGLE;
> +			break;
> +		case TCA_PEDIT_KEY_EX_CMD_ADD:
> +			fl_action->id = FLOW_ACTION_ADD;
> +			break;
> +		default:
> +			NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
> +			return -EOPNOTSUPP;
> +		}
> +
> +		for (k = 1; k < tcf_pedit_nkeys(act); k++) {
> +			cmd = tcf_pedit_cmd(act, k);
> +
> +			if (cmd != last_cmd) {

Hi Oz,

Is last_cmd initialised for the first iteration of this loop?

> +				NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
> +				return -EOPNOTSUPP;
> +			}
> +
> +			last_cmd = cmd;
> +		}
>  	}
>  
>  	return 0;
> -- 
> 1.8.3.1
>
Jamal Hadi Salim Feb. 6, 2023, 11:48 a.m. UTC | #2
Does it have to be?

cheers,
jamal

On Mon, Feb 6, 2023 at 5:49 AM Simon Horman <simon.horman@corigine.com> wrote:
>
> On Sun, Feb 05, 2023 at 03:55:18PM +0200, Oz Shlomo wrote:
> > A single tc pedit action may be translated to multiple flow_offload
> > actions.
> > Offload only actions that translate to a single pedit command value.
> >
> > Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
> >
> > ---
> > Change log:
> >
> > V1 -> V2:
> >     - Add extack message on error
> >     - Assign the flow action id outside the for loop.
> >       Ensure the rest of the pedit actions follow the assigned id.
> > ---
> >  net/sched/act_pedit.c | 28 +++++++++++++++++++++++++++-
> >  1 file changed, 27 insertions(+), 1 deletion(-)
> >
> > diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
> > index c42fcc47dd6d..dae88e205cb1 100644
> > --- a/net/sched/act_pedit.c
> > +++ b/net/sched/act_pedit.c
> > @@ -545,7 +545,33 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
> >               }
> >               *index_inc = k;
> >       } else {
> > -             return -EOPNOTSUPP;
> > +             struct flow_offload_action *fl_action = entry_data;
> > +             u32 cmd = tcf_pedit_cmd(act, 0);
> > +             u32 last_cmd;
> > +             int k;
> > +
> > +             switch (cmd) {
> > +             case TCA_PEDIT_KEY_EX_CMD_SET:
> > +                     fl_action->id = FLOW_ACTION_MANGLE;
> > +                     break;
> > +             case TCA_PEDIT_KEY_EX_CMD_ADD:
> > +                     fl_action->id = FLOW_ACTION_ADD;
> > +                     break;
> > +             default:
> > +                     NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
> > +                     return -EOPNOTSUPP;
> > +             }
> > +
> > +             for (k = 1; k < tcf_pedit_nkeys(act); k++) {
> > +                     cmd = tcf_pedit_cmd(act, k);
> > +
> > +                     if (cmd != last_cmd) {
>
> Hi Oz,
>
> Is last_cmd initialised for the first iteration of this loop?
>
> > +                             NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
> > +                             return -EOPNOTSUPP;
> > +                     }
> > +
> > +                     last_cmd = cmd;
> > +             }
> >       }
> >
> >       return 0;
> > --
> > 1.8.3.1
> >
Jamal Hadi Salim Feb. 6, 2023, 11:49 a.m. UTC | #3
Never mind - of course it does ;->

cheers,
jamal

On Mon, Feb 6, 2023 at 6:48 AM Jamal Hadi Salim <jhs@mojatatu.com> wrote:
>
> Does it have to be?
>
> cheers,
> jamal
>
> On Mon, Feb 6, 2023 at 5:49 AM Simon Horman <simon.horman@corigine.com> wrote:
> >
> > On Sun, Feb 05, 2023 at 03:55:18PM +0200, Oz Shlomo wrote:
> > > A single tc pedit action may be translated to multiple flow_offload
> > > actions.
> > > Offload only actions that translate to a single pedit command value.
> > >
> > > Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
> > >
> > > ---
> > > Change log:
> > >
> > > V1 -> V2:
> > >     - Add extack message on error
> > >     - Assign the flow action id outside the for loop.
> > >       Ensure the rest of the pedit actions follow the assigned id.
> > > ---
> > >  net/sched/act_pedit.c | 28 +++++++++++++++++++++++++++-
> > >  1 file changed, 27 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
> > > index c42fcc47dd6d..dae88e205cb1 100644
> > > --- a/net/sched/act_pedit.c
> > > +++ b/net/sched/act_pedit.c
> > > @@ -545,7 +545,33 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
> > >               }
> > >               *index_inc = k;
> > >       } else {
> > > -             return -EOPNOTSUPP;
> > > +             struct flow_offload_action *fl_action = entry_data;
> > > +             u32 cmd = tcf_pedit_cmd(act, 0);
> > > +             u32 last_cmd;
> > > +             int k;
> > > +
> > > +             switch (cmd) {
> > > +             case TCA_PEDIT_KEY_EX_CMD_SET:
> > > +                     fl_action->id = FLOW_ACTION_MANGLE;
> > > +                     break;
> > > +             case TCA_PEDIT_KEY_EX_CMD_ADD:
> > > +                     fl_action->id = FLOW_ACTION_ADD;
> > > +                     break;
> > > +             default:
> > > +                     NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
> > > +                     return -EOPNOTSUPP;
> > > +             }
> > > +
> > > +             for (k = 1; k < tcf_pedit_nkeys(act); k++) {
> > > +                     cmd = tcf_pedit_cmd(act, k);
> > > +
> > > +                     if (cmd != last_cmd) {
> >
> > Hi Oz,
> >
> > Is last_cmd initialised for the first iteration of this loop?
> >
> > > +                             NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
> > > +                             return -EOPNOTSUPP;
> > > +                     }
> > > +
> > > +                     last_cmd = cmd;
> > > +             }
> > >       }
> > >
> > >       return 0;
> > > --
> > > 1.8.3.1
> > >
Oz Shlomo Feb. 6, 2023, 11:50 a.m. UTC | #4
Yes, I will fix this

On 06/02/2023 13:49, Jamal Hadi Salim wrote:
> Never mind - of course it does ;->
>
> cheers,
> jamal
>
> On Mon, Feb 6, 2023 at 6:48 AM Jamal Hadi Salim <jhs@mojatatu.com> wrote:
>> Does it have to be?
>>
>> cheers,
>> jamal
>>
>> On Mon, Feb 6, 2023 at 5:49 AM Simon Horman <simon.horman@corigine.com> wrote:
>>> On Sun, Feb 05, 2023 at 03:55:18PM +0200, Oz Shlomo wrote:
>>>> A single tc pedit action may be translated to multiple flow_offload
>>>> actions.
>>>> Offload only actions that translate to a single pedit command value.
>>>>
>>>> Signed-off-by: Oz Shlomo <ozsh@nvidia.com>
>>>>
>>>> ---
>>>> Change log:
>>>>
>>>> V1 -> V2:
>>>>      - Add extack message on error
>>>>      - Assign the flow action id outside the for loop.
>>>>        Ensure the rest of the pedit actions follow the assigned id.
>>>> ---
>>>>   net/sched/act_pedit.c | 28 +++++++++++++++++++++++++++-
>>>>   1 file changed, 27 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
>>>> index c42fcc47dd6d..dae88e205cb1 100644
>>>> --- a/net/sched/act_pedit.c
>>>> +++ b/net/sched/act_pedit.c
>>>> @@ -545,7 +545,33 @@ static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
>>>>                }
>>>>                *index_inc = k;
>>>>        } else {
>>>> -             return -EOPNOTSUPP;
>>>> +             struct flow_offload_action *fl_action = entry_data;
>>>> +             u32 cmd = tcf_pedit_cmd(act, 0);
>>>> +             u32 last_cmd;
>>>> +             int k;
>>>> +
>>>> +             switch (cmd) {
>>>> +             case TCA_PEDIT_KEY_EX_CMD_SET:
>>>> +                     fl_action->id = FLOW_ACTION_MANGLE;
>>>> +                     break;
>>>> +             case TCA_PEDIT_KEY_EX_CMD_ADD:
>>>> +                     fl_action->id = FLOW_ACTION_ADD;
>>>> +                     break;
>>>> +             default:
>>>> +                     NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
>>>> +                     return -EOPNOTSUPP;
>>>> +             }
>>>> +
>>>> +             for (k = 1; k < tcf_pedit_nkeys(act); k++) {
>>>> +                     cmd = tcf_pedit_cmd(act, k);
>>>> +
>>>> +                     if (cmd != last_cmd) {
>>> Hi Oz,
>>>
>>> Is last_cmd initialised for the first iteration of this loop?
>>>
>>>> +                             NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
>>>> +                             return -EOPNOTSUPP;
>>>> +                     }
>>>> +
>>>> +                     last_cmd = cmd;
>>>> +             }
>>>>        }
>>>>
>>>>        return 0;
>>>> --
>>>> 1.8.3.1
>>>>
diff mbox series

Patch

diff --git a/net/sched/act_pedit.c b/net/sched/act_pedit.c
index c42fcc47dd6d..dae88e205cb1 100644
--- a/net/sched/act_pedit.c
+++ b/net/sched/act_pedit.c
@@ -545,7 +545,33 @@  static int tcf_pedit_offload_act_setup(struct tc_action *act, void *entry_data,
 		}
 		*index_inc = k;
 	} else {
-		return -EOPNOTSUPP;
+		struct flow_offload_action *fl_action = entry_data;
+		u32 cmd = tcf_pedit_cmd(act, 0);
+		u32 last_cmd;
+		int k;
+
+		switch (cmd) {
+		case TCA_PEDIT_KEY_EX_CMD_SET:
+			fl_action->id = FLOW_ACTION_MANGLE;
+			break;
+		case TCA_PEDIT_KEY_EX_CMD_ADD:
+			fl_action->id = FLOW_ACTION_ADD;
+			break;
+		default:
+			NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
+			return -EOPNOTSUPP;
+		}
+
+		for (k = 1; k < tcf_pedit_nkeys(act); k++) {
+			cmd = tcf_pedit_cmd(act, k);
+
+			if (cmd != last_cmd) {
+				NL_SET_ERR_MSG_MOD(extack, "Unsupported pedit command offload");
+				return -EOPNOTSUPP;
+			}
+
+			last_cmd = cmd;
+		}
 	}
 
 	return 0;