diff mbox series

[4/4] net/mlx5: add DV decap L2 and L3 operations

Message ID 1538059845-35896-5-git-send-email-dekelp@mellanox.com (mailing list archive)
State Superseded, archived
Delegated to: Shahaf Shuler
Headers
Series support DV encap and decap actions |

Checks

Context Check Description
ci/checkpatch success coding style OK
ci/Intel-compilation success Compilation OK

Commit Message

Dekel Peled Sept. 27, 2018, 2:50 p.m. UTC 
  This patch adds support for Direct Verbs decap operations, L2 and L3.

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
---
 drivers/net/mlx5/mlx5_flow_dv.c | 258 ++++++++++++++++++++++++++++++++++++++--
 1 file changed, 248 insertions(+), 10 deletions(-)

Comments

Yongseok Koh Oct. 3, 2018, 7:07 a.m. UTC | #1 
On Thu, Sep 27, 2018 at 05:50:45PM +0300, Dekel Peled wrote:
> This patch adds support for Direct Verbs decap operations, L2 and L3.
> 

Almost same code as encap, so I also have the same comments. :-)
One more. In the title, we can't use vendor specific acronyms.

	net/mlx5: add DV decap L2 and L3 operations

DV -> Direct Verbs

How about something like this?
	net/mlx5: add L2/L3 encap to Direct Verbs flow

> Signed-off-by: Dekel Peled <dekelp@mellanox.com>
> ---
>  drivers/net/mlx5/mlx5_flow_dv.c | 258 ++++++++++++++++++++++++++++++++++++++--
>  1 file changed, 248 insertions(+), 10 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
> index 50925ac..ca44f13 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -126,12 +126,20 @@
>  					  NULL,
>  					  "can't have 2 encap actions in same"
>  					  " flow");
> +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't encap and decap in same"
> +					  " flow");
>  	if (attr->ingress)
>  		return rte_flow_error_set(error, ENOTSUP,
> -					RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> -					NULL,
> -					"encap action not supported for "
> -					"ingress");
> +					  RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> +					  NULL,
> +					  "encap action not supported for "
> +					  "ingress");
>  	return 0;
>  }
>  
> @@ -178,12 +186,130 @@
>  					  NULL,
>  					  "can't have 2 encap actions in same"
>  					  " flow");
> +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't encap and decap in same"
> +					  " flow");
>  	if (attr->ingress)
>  		return rte_flow_error_set(error, ENOTSUP,
> -					RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> -					NULL,
> -					"encap action not supported for "
> -					"ingress");
> +					  RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> +					  NULL,
> +					  "encap action not supported for "
> +					  "ingress");
> +	return 0;
> +}
> +
> +/**
> + * Validate the tunnel decap action
> + *
> + * @param[in] action_flags
> + *   holds the actions detected until now.
> + * @param[in] attr
> + *   Pointer to flow attributes
> + * @param[out] error
> + *   Pointer to error structure.
> + *
> + * @return
> + *   0 on success, a negative errno value otherwise and rte_ernno is set.
> + */
> +static int
> +mlx5_flow_validate_action_tunnel_decap(uint64_t action_flags,
> +				       const struct rte_flow_attr *attr,
> +				       struct rte_flow_error *error)
> +{
> +	if (action_flags & MLX5_ACTION_DROP)
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't drop and decap in same flow");
> +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't have 2 decap actions in same"
> +					  " flow");
> +	if (action_flags & (MLX5_ACTION_TUNNEL_ENCAP |
> +			    MLX5_ACTION_TUNNEL_ENCAP_L3))
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't encap and decap in same"
> +					  " flow");
> +	if (attr->egress)
> +		return rte_flow_error_set(error, ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
> +					  NULL,
> +					  "decap action not supported for "
> +					  "egress");
> +	return 0;
> +}
> +
> +/**
> + * Validate the tunnel decap L3 action
> + *
> + * @param[in] action_flags
> + *   holds the actions detected until now.
> + * @param[in] action
> + *   Pointer to the decap action.
> + * @param[in] attr
> + *   Pointer to flow attributes
> + * @param[out] error
> + *   Pointer to error structure.
> + *
> + * @return
> + *   0 on success, a negative errno value otherwise and rte_ernno is set.
> + */
> +static int
> +mlx5_flow_validate_action_tunnel_decap_l3(uint64_t action_flags,
> +					  const struct rte_flow_action *action,
> +					  const struct rte_flow_attr *attr,
> +					  struct rte_flow_error *error)
> +{
> +	const struct rte_flow_action_tunnel_decap_l3 *tunnel_decap_l3 =
> +								action->conf;
> +
> +	if (!tunnel_decap_l3 || !(tunnel_decap_l3->buf))
> +
> +		return rte_flow_error_set(error, EINVAL,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  action,
> +					  "configuration cannot be null");
> +	if (action_flags & MLX5_ACTION_DROP)
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't drop and decap in same flow");
> +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't have 2 decap actions in same"
> +					  " flow");
> +	if (action_flags & (MLX5_ACTION_TUNNEL_ENCAP |
> +			    MLX5_ACTION_TUNNEL_ENCAP_L3))
> +		return rte_flow_error_set(error,
> +					  ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ACTION,
> +					  NULL,
> +					  "can't encap and decap in same"
> +					  " flow");
> +	if (attr->egress)
> +		return rte_flow_error_set(error, ENOTSUP,
> +					  RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
> +					  NULL,
> +					  "decap action not supported for "
> +					  "egress");
>  	return 0;
>  }
>  
> @@ -257,6 +383,72 @@
>  }
>  
>  /**
> + * Convert decap action to DV specification.
> + *
> + * @param[in] action
> + *   Pointer to action structure.
> + * @param[in] ctx
> + *   Verbs context.
> + * @param[out] error
> + *   Pointer to the error structure.
> + *
> + * @return
> + *   Pointer to action on success, NULL otherwise and rte_errno is set.
> + */
> +static struct ibv_flow_action *
> +mlx5_flow_dv_create_decap(const struct rte_flow_action *action __rte_unused,
> +			  struct ibv_context *ctx,
> +			  struct rte_flow_error *error)
> +{
> +	struct ibv_flow_action *decap_verb = NULL;
> +
> +	decap_verb = mlx5_glue->dv_create_flow_action_packet_reformat(ctx,
> +			0, NULL,
> +			MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TUNNEL_TO_L2,
> +			MLX5DV_FLOW_TABLE_TYPE_NIC_RX);
> +	if (!decap_verb)
> +		rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
> +				   NULL, "cannot create decap action");
> +	return decap_verb;
> +}
> +
> +/**
> + * Convert decap L3 action to DV specification.
> + *
> + * @param[in] action
> + *   Pointer to action structure.
> + * @param[in] ctx
> + *   Verbs context.
> + * @param[out] error
> + *   Pointer to the error structure.
> + *
> + * @return
> + *   Pointer to action on success, NULL otherwise and rte_errno is set.
> + */
> +static struct ibv_flow_action *
> +mlx5_flow_dv_create_decap_l3(const struct rte_flow_action *action,
> +			     struct ibv_context *ctx,
> +			     struct rte_flow_error *error)
> +{
> +	struct ibv_flow_action *decap_l3_verb = NULL;
> +	const struct rte_flow_action_tunnel_decap_l3 *decap_l3_data;
> +
> +	decap_l3_data =
> +		(const struct rte_flow_action_tunnel_decap_l3 *)action->conf;
> +	decap_l3_verb = mlx5_glue->dv_create_flow_action_packet_reformat(ctx,
> +			decap_l3_data->size,
> +			decap_l3_data->size ? decap_l3_data->buf :
> +					      NULL,
> +			MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L3_TUNNEL_TO_L2,
> +			MLX5DV_FLOW_TABLE_TYPE_NIC_RX);
> +	if (!decap_l3_verb)
> +		rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
> +				   NULL, "cannot create decap L3 action");
> +
> +	return decap_l3_verb;
> +}
> +
> +/**
>   * Verify the @p attributes will be correctly understood by the NIC and store
>   * them in the @p flow if everything is correct.
>   *
> @@ -529,6 +721,25 @@
>  				return ret;
>  			action_flags |= MLX5_ACTION_TUNNEL_ENCAP_L3;
>  			break;
> +		case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP:
> +			ret = mlx5_flow_validate_action_tunnel_decap
> +				(action_flags,
> +				 attr,
> +				 error);
> +			if (ret < 0)
> +				return ret;
> +			action_flags |= MLX5_ACTION_TUNNEL_DECAP;
> +			break;
> +		case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP_L3:
> +			ret = mlx5_flow_validate_action_tunnel_decap_l3
> +				(action_flags,
> +				 actions,
> +				 attr,
> +				 error);
> +			if (ret < 0)
> +				return ret;
> +			action_flags |= MLX5_ACTION_TUNNEL_DECAP_L3;
> +			break;
>  		default:
>  			return rte_flow_error_set(error, ENOTSUP,
>  						  RTE_FLOW_ERROR_TYPE_ACTION,
> @@ -1320,6 +1531,30 @@
>  		flow->actions |= MLX5_ACTION_TUNNEL_ENCAP_L3;
>  		actions_n++;
>  		break;
> +	case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP:
> +		dev_flow->dv.actions[actions_n].type =
> +			MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
> +		dev_flow->dv.actions[actions_n].action =
> +			mlx5_flow_dv_create_decap(action, ctx, error);
> +		if (!(dev_flow->dv.actions[actions_n].action))
> +			return -rte_errno;
> +		dev_flow->dv.decap_verb =
> +			dev_flow->dv.actions[actions_n].action;
> +		flow->actions |= MLX5_ACTION_TUNNEL_DECAP;
> +		actions_n++;
> +		break;
> +	case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP_L3:
> +		dev_flow->dv.actions[actions_n].type =
> +			MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
> +		dev_flow->dv.actions[actions_n].action =
> +			mlx5_flow_dv_create_decap_l3(action, ctx, error);
> +		if (!(dev_flow->dv.actions[actions_n].action))
> +			return -rte_errno;
> +		dev_flow->dv.decap_verb =
> +			dev_flow->dv.actions[actions_n].action;
> +		flow->actions |= MLX5_ACTION_TUNNEL_DECAP_L3;
> +		actions_n++;
> +		break;
>  	default:
>  		break;
>  	}
> @@ -1679,13 +1914,16 @@
>  		LIST_REMOVE(dev_flow, next);
>  		if (dev_flow->dv.matcher)
>  			flow_dv_matcher_release(dev, dev_flow->dv.matcher);
> -

Looks like it is a mistake on rebasing.

>  		if (dev_flow->dv.encap_verb) {
>  			claim_zero(mlx5_glue->destroy_flow_action
>  						(dev_flow->dv.encap_verb));
>  			dev_flow->dv.encap_verb = NULL;
>  		}
> -
> +		if (dev_flow->dv.decap_verb) {
> +			claim_zero(mlx5_glue->destroy_flow_action
> +						(dev_flow->dv.decap_verb));
> +			dev_flow->dv.decap_verb = NULL;
> +		}
>  		rte_free(dev_flow);
>  	}
>  }
> -- 
> 1.8.3.1
>
Dekel Peled Oct. 3, 2018, 4:14 p.m. UTC | #2 
Thanks, PSB.

> -----Original Message-----
> From: Yongseok Koh
> Sent: Wednesday, October 3, 2018 10:07 AM
> To: Dekel Peled <dekelp@mellanox.com>
> Cc: dev@dpdk.org; Shahaf Shuler <shahafs@mellanox.com>; Ori Kam
> <orika@mellanox.com>
> Subject: Re: [PATCH 4/4] net/mlx5: add DV decap L2 and L3 operations
> 
> On Thu, Sep 27, 2018 at 05:50:45PM +0300, Dekel Peled wrote:
> > This patch adds support for Direct Verbs decap operations, L2 and L3.
> >
> 
> Almost same code as encap, so I also have the same comments. :-) One
> more. In the title, we can't use vendor specific acronyms.
> 
> 	net/mlx5: add DV decap L2 and L3 operations
> 
> DV -> Direct Verbs
> 
> How about something like this?
> 	net/mlx5: add L2/L3 encap to Direct Verbs flow

Done.

> 
> > Signed-off-by: Dekel Peled <dekelp@mellanox.com>
> > ---
> >  drivers/net/mlx5/mlx5_flow_dv.c | 258
> > ++++++++++++++++++++++++++++++++++++++--
> >  1 file changed, 248 insertions(+), 10 deletions(-)
> >
> > diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> > b/drivers/net/mlx5/mlx5_flow_dv.c index 50925ac..ca44f13 100644
> > --- a/drivers/net/mlx5/mlx5_flow_dv.c
> > +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> > @@ -126,12 +126,20 @@
> >  					  NULL,
> >  					  "can't have 2 encap actions in same"
> >  					  " flow");
> > +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> > +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't encap and decap in same"
> > +					  " flow");
> >  	if (attr->ingress)
> >  		return rte_flow_error_set(error, ENOTSUP,
> > -
> 	RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> > -					NULL,
> > -					"encap action not supported for "
> > -					"ingress");
> > +
> RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> > +					  NULL,
> > +					  "encap action not supported for "
> > +					  "ingress");
> >  	return 0;
> >  }
> >
> > @@ -178,12 +186,130 @@
> >  					  NULL,
> >  					  "can't have 2 encap actions in same"
> >  					  " flow");
> > +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> > +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't encap and decap in same"
> > +					  " flow");
> >  	if (attr->ingress)
> >  		return rte_flow_error_set(error, ENOTSUP,
> > -
> 	RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> > -					NULL,
> > -					"encap action not supported for "
> > -					"ingress");
> > +
> RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
> > +					  NULL,
> > +					  "encap action not supported for "
> > +					  "ingress");
> > +	return 0;
> > +}
> > +
> > +/**
> > + * Validate the tunnel decap action
> > + *
> > + * @param[in] action_flags
> > + *   holds the actions detected until now.
> > + * @param[in] attr
> > + *   Pointer to flow attributes
> > + * @param[out] error
> > + *   Pointer to error structure.
> > + *
> > + * @return
> > + *   0 on success, a negative errno value otherwise and rte_ernno is set.
> > + */
> > +static int
> > +mlx5_flow_validate_action_tunnel_decap(uint64_t action_flags,
> > +				       const struct rte_flow_attr *attr,
> > +				       struct rte_flow_error *error) {
> > +	if (action_flags & MLX5_ACTION_DROP)
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't drop and decap in same
> flow");
> > +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> > +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't have 2 decap actions in same"
> > +					  " flow");
> > +	if (action_flags & (MLX5_ACTION_TUNNEL_ENCAP |
> > +			    MLX5_ACTION_TUNNEL_ENCAP_L3))
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't encap and decap in same"
> > +					  " flow");
> > +	if (attr->egress)
> > +		return rte_flow_error_set(error, ENOTSUP,
> > +
> RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
> > +					  NULL,
> > +					  "decap action not supported for "
> > +					  "egress");
> > +	return 0;
> > +}
> > +
> > +/**
> > + * Validate the tunnel decap L3 action
> > + *
> > + * @param[in] action_flags
> > + *   holds the actions detected until now.
> > + * @param[in] action
> > + *   Pointer to the decap action.
> > + * @param[in] attr
> > + *   Pointer to flow attributes
> > + * @param[out] error
> > + *   Pointer to error structure.
> > + *
> > + * @return
> > + *   0 on success, a negative errno value otherwise and rte_ernno is set.
> > + */
> > +static int
> > +mlx5_flow_validate_action_tunnel_decap_l3(uint64_t action_flags,
> > +					  const struct rte_flow_action *action,
> > +					  const struct rte_flow_attr *attr,
> > +					  struct rte_flow_error *error)
> > +{
> > +	const struct rte_flow_action_tunnel_decap_l3 *tunnel_decap_l3 =
> > +								action->conf;
> > +
> > +	if (!tunnel_decap_l3 || !(tunnel_decap_l3->buf))
> > +
> > +		return rte_flow_error_set(error, EINVAL,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  action,
> > +					  "configuration cannot be null");
> > +	if (action_flags & MLX5_ACTION_DROP)
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't drop and decap in same
> flow");
> > +	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
> > +			    MLX5_ACTION_TUNNEL_DECAP_L3))
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't have 2 decap actions in same"
> > +					  " flow");
> > +	if (action_flags & (MLX5_ACTION_TUNNEL_ENCAP |
> > +			    MLX5_ACTION_TUNNEL_ENCAP_L3))
> > +		return rte_flow_error_set(error,
> > +					  ENOTSUP,
> > +					  RTE_FLOW_ERROR_TYPE_ACTION,
> > +					  NULL,
> > +					  "can't encap and decap in same"
> > +					  " flow");
> > +	if (attr->egress)
> > +		return rte_flow_error_set(error, ENOTSUP,
> > +
> RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
> > +					  NULL,
> > +					  "decap action not supported for "
> > +					  "egress");
> >  	return 0;
> >  }
> >
> > @@ -257,6 +383,72 @@
> >  }
> >
> >  /**
> > + * Convert decap action to DV specification.
> > + *
> > + * @param[in] action
> > + *   Pointer to action structure.
> > + * @param[in] ctx
> > + *   Verbs context.
> > + * @param[out] error
> > + *   Pointer to the error structure.
> > + *
> > + * @return
> > + *   Pointer to action on success, NULL otherwise and rte_errno is set.
> > + */
> > +static struct ibv_flow_action *
> > +mlx5_flow_dv_create_decap(const struct rte_flow_action *action
> __rte_unused,
> > +			  struct ibv_context *ctx,
> > +			  struct rte_flow_error *error)
> > +{
> > +	struct ibv_flow_action *decap_verb = NULL;
> > +
> > +	decap_verb = mlx5_glue-
> >dv_create_flow_action_packet_reformat(ctx,
> > +			0, NULL,
> > +
> 	MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TUNNEL_T
> O_L2,
> > +			MLX5DV_FLOW_TABLE_TYPE_NIC_RX);
> > +	if (!decap_verb)
> > +		rte_flow_error_set(error, EINVAL,
> RTE_FLOW_ERROR_TYPE_ACTION,
> > +				   NULL, "cannot create decap action");
> > +	return decap_verb;
> > +}
> > +
> > +/**
> > + * Convert decap L3 action to DV specification.
> > + *
> > + * @param[in] action
> > + *   Pointer to action structure.
> > + * @param[in] ctx
> > + *   Verbs context.
> > + * @param[out] error
> > + *   Pointer to the error structure.
> > + *
> > + * @return
> > + *   Pointer to action on success, NULL otherwise and rte_errno is set.
> > + */
> > +static struct ibv_flow_action *
> > +mlx5_flow_dv_create_decap_l3(const struct rte_flow_action *action,
> > +			     struct ibv_context *ctx,
> > +			     struct rte_flow_error *error) {
> > +	struct ibv_flow_action *decap_l3_verb = NULL;
> > +	const struct rte_flow_action_tunnel_decap_l3 *decap_l3_data;
> > +
> > +	decap_l3_data =
> > +		(const struct rte_flow_action_tunnel_decap_l3 *)action-
> >conf;
> > +	decap_l3_verb = mlx5_glue-
> >dv_create_flow_action_packet_reformat(ctx,
> > +			decap_l3_data->size,
> > +			decap_l3_data->size ? decap_l3_data->buf :
> > +					      NULL,
> > +
> 	MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L3_TUNNEL_T
> O_L2,
> > +			MLX5DV_FLOW_TABLE_TYPE_NIC_RX);
> > +	if (!decap_l3_verb)
> > +		rte_flow_error_set(error, EINVAL,
> RTE_FLOW_ERROR_TYPE_ACTION,
> > +				   NULL, "cannot create decap L3 action");
> > +
> > +	return decap_l3_verb;
> > +}
> > +
> > +/**
> >   * Verify the @p attributes will be correctly understood by the NIC and
> store
> >   * them in the @p flow if everything is correct.
> >   *
> > @@ -529,6 +721,25 @@
> >  				return ret;
> >  			action_flags |= MLX5_ACTION_TUNNEL_ENCAP_L3;
> >  			break;
> > +		case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP:
> > +			ret = mlx5_flow_validate_action_tunnel_decap
> > +				(action_flags,
> > +				 attr,
> > +				 error);
> > +			if (ret < 0)
> > +				return ret;
> > +			action_flags |= MLX5_ACTION_TUNNEL_DECAP;
> > +			break;
> > +		case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP_L3:
> > +			ret = mlx5_flow_validate_action_tunnel_decap_l3
> > +				(action_flags,
> > +				 actions,
> > +				 attr,
> > +				 error);
> > +			if (ret < 0)
> > +				return ret;
> > +			action_flags |= MLX5_ACTION_TUNNEL_DECAP_L3;
> > +			break;
> >  		default:
> >  			return rte_flow_error_set(error, ENOTSUP,
> >
> RTE_FLOW_ERROR_TYPE_ACTION,
> > @@ -1320,6 +1531,30 @@
> >  		flow->actions |= MLX5_ACTION_TUNNEL_ENCAP_L3;
> >  		actions_n++;
> >  		break;
> > +	case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP:
> > +		dev_flow->dv.actions[actions_n].type =
> > +			MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
> > +		dev_flow->dv.actions[actions_n].action =
> > +			mlx5_flow_dv_create_decap(action, ctx, error);
> > +		if (!(dev_flow->dv.actions[actions_n].action))
> > +			return -rte_errno;
> > +		dev_flow->dv.decap_verb =
> > +			dev_flow->dv.actions[actions_n].action;
> > +		flow->actions |= MLX5_ACTION_TUNNEL_DECAP;
> > +		actions_n++;
> > +		break;
> > +	case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP_L3:
> > +		dev_flow->dv.actions[actions_n].type =
> > +			MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
> > +		dev_flow->dv.actions[actions_n].action =
> > +			mlx5_flow_dv_create_decap_l3(action, ctx, error);
> > +		if (!(dev_flow->dv.actions[actions_n].action))
> > +			return -rte_errno;
> > +		dev_flow->dv.decap_verb =
> > +			dev_flow->dv.actions[actions_n].action;
> > +		flow->actions |= MLX5_ACTION_TUNNEL_DECAP_L3;
> > +		actions_n++;
> > +		break;
> >  	default:
> >  		break;
> >  	}
> > @@ -1679,13 +1914,16 @@
> >  		LIST_REMOVE(dev_flow, next);
> >  		if (dev_flow->dv.matcher)
> >  			flow_dv_matcher_release(dev, dev_flow-
> >dv.matcher);
> > -
> 
> Looks like it is a mistake on rebasing.

Redundant blank line removed.

> 
> >  		if (dev_flow->dv.encap_verb) {
> >  			claim_zero(mlx5_glue->destroy_flow_action
> >  						(dev_flow->dv.encap_verb));
> >  			dev_flow->dv.encap_verb = NULL;
> >  		}
> > -
> > +		if (dev_flow->dv.decap_verb) {
> > +			claim_zero(mlx5_glue->destroy_flow_action
> > +						(dev_flow->dv.decap_verb));
> > +			dev_flow->dv.decap_verb = NULL;
> > +		}
> >  		rte_free(dev_flow);
> >  	}
> >  }
> > --
> > 1.8.3.1
> >
diff mbox series

Patch

diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c
index 50925ac..ca44f13 100644
--- a/drivers/net/mlx5/mlx5_flow_dv.c
+++ b/drivers/net/mlx5/mlx5_flow_dv.c
@@ -126,12 +126,20 @@ 
 					  NULL,
 					  "can't have 2 encap actions in same"
 					  " flow");
+	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
+			    MLX5_ACTION_TUNNEL_DECAP_L3))
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't encap and decap in same"
+					  " flow");
 	if (attr->ingress)
 		return rte_flow_error_set(error, ENOTSUP,
-					RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
-					NULL,
-					"encap action not supported for "
-					"ingress");
+					  RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
+					  NULL,
+					  "encap action not supported for "
+					  "ingress");
 	return 0;
 }
 
@@ -178,12 +186,130 @@ 
 					  NULL,
 					  "can't have 2 encap actions in same"
 					  " flow");
+	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
+			    MLX5_ACTION_TUNNEL_DECAP_L3))
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't encap and decap in same"
+					  " flow");
 	if (attr->ingress)
 		return rte_flow_error_set(error, ENOTSUP,
-					RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
-					NULL,
-					"encap action not supported for "
-					"ingress");
+					  RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
+					  NULL,
+					  "encap action not supported for "
+					  "ingress");
+	return 0;
+}
+
+/**
+ * Validate the tunnel decap action
+ *
+ * @param[in] action_flags
+ *   holds the actions detected until now.
+ * @param[in] attr
+ *   Pointer to flow attributes
+ * @param[out] error
+ *   Pointer to error structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_ernno is set.
+ */
+static int
+mlx5_flow_validate_action_tunnel_decap(uint64_t action_flags,
+				       const struct rte_flow_attr *attr,
+				       struct rte_flow_error *error)
+{
+	if (action_flags & MLX5_ACTION_DROP)
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't drop and decap in same flow");
+	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
+			    MLX5_ACTION_TUNNEL_DECAP_L3))
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't have 2 decap actions in same"
+					  " flow");
+	if (action_flags & (MLX5_ACTION_TUNNEL_ENCAP |
+			    MLX5_ACTION_TUNNEL_ENCAP_L3))
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't encap and decap in same"
+					  " flow");
+	if (attr->egress)
+		return rte_flow_error_set(error, ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
+					  NULL,
+					  "decap action not supported for "
+					  "egress");
+	return 0;
+}
+
+/**
+ * Validate the tunnel decap L3 action
+ *
+ * @param[in] action_flags
+ *   holds the actions detected until now.
+ * @param[in] action
+ *   Pointer to the decap action.
+ * @param[in] attr
+ *   Pointer to flow attributes
+ * @param[out] error
+ *   Pointer to error structure.
+ *
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_ernno is set.
+ */
+static int
+mlx5_flow_validate_action_tunnel_decap_l3(uint64_t action_flags,
+					  const struct rte_flow_action *action,
+					  const struct rte_flow_attr *attr,
+					  struct rte_flow_error *error)
+{
+	const struct rte_flow_action_tunnel_decap_l3 *tunnel_decap_l3 =
+								action->conf;
+
+	if (!tunnel_decap_l3 || !(tunnel_decap_l3->buf))
+
+		return rte_flow_error_set(error, EINVAL,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  action,
+					  "configuration cannot be null");
+	if (action_flags & MLX5_ACTION_DROP)
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't drop and decap in same flow");
+	if (action_flags & (MLX5_ACTION_TUNNEL_DECAP |
+			    MLX5_ACTION_TUNNEL_DECAP_L3))
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't have 2 decap actions in same"
+					  " flow");
+	if (action_flags & (MLX5_ACTION_TUNNEL_ENCAP |
+			    MLX5_ACTION_TUNNEL_ENCAP_L3))
+		return rte_flow_error_set(error,
+					  ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ACTION,
+					  NULL,
+					  "can't encap and decap in same"
+					  " flow");
+	if (attr->egress)
+		return rte_flow_error_set(error, ENOTSUP,
+					  RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
+					  NULL,
+					  "decap action not supported for "
+					  "egress");
 	return 0;
 }
 
@@ -257,6 +383,72 @@ 
 }
 
 /**
+ * Convert decap action to DV specification.
+ *
+ * @param[in] action
+ *   Pointer to action structure.
+ * @param[in] ctx
+ *   Verbs context.
+ * @param[out] error
+ *   Pointer to the error structure.
+ *
+ * @return
+ *   Pointer to action on success, NULL otherwise and rte_errno is set.
+ */
+static struct ibv_flow_action *
+mlx5_flow_dv_create_decap(const struct rte_flow_action *action __rte_unused,
+			  struct ibv_context *ctx,
+			  struct rte_flow_error *error)
+{
+	struct ibv_flow_action *decap_verb = NULL;
+
+	decap_verb = mlx5_glue->dv_create_flow_action_packet_reformat(ctx,
+			0, NULL,
+			MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L2_TUNNEL_TO_L2,
+			MLX5DV_FLOW_TABLE_TYPE_NIC_RX);
+	if (!decap_verb)
+		rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
+				   NULL, "cannot create decap action");
+	return decap_verb;
+}
+
+/**
+ * Convert decap L3 action to DV specification.
+ *
+ * @param[in] action
+ *   Pointer to action structure.
+ * @param[in] ctx
+ *   Verbs context.
+ * @param[out] error
+ *   Pointer to the error structure.
+ *
+ * @return
+ *   Pointer to action on success, NULL otherwise and rte_errno is set.
+ */
+static struct ibv_flow_action *
+mlx5_flow_dv_create_decap_l3(const struct rte_flow_action *action,
+			     struct ibv_context *ctx,
+			     struct rte_flow_error *error)
+{
+	struct ibv_flow_action *decap_l3_verb = NULL;
+	const struct rte_flow_action_tunnel_decap_l3 *decap_l3_data;
+
+	decap_l3_data =
+		(const struct rte_flow_action_tunnel_decap_l3 *)action->conf;
+	decap_l3_verb = mlx5_glue->dv_create_flow_action_packet_reformat(ctx,
+			decap_l3_data->size,
+			decap_l3_data->size ? decap_l3_data->buf :
+					      NULL,
+			MLX5DV_FLOW_ACTION_PACKET_REFORMAT_TYPE_L3_TUNNEL_TO_L2,
+			MLX5DV_FLOW_TABLE_TYPE_NIC_RX);
+	if (!decap_l3_verb)
+		rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ACTION,
+				   NULL, "cannot create decap L3 action");
+
+	return decap_l3_verb;
+}
+
+/**
  * Verify the @p attributes will be correctly understood by the NIC and store
  * them in the @p flow if everything is correct.
  *
@@ -529,6 +721,25 @@ 
 				return ret;
 			action_flags |= MLX5_ACTION_TUNNEL_ENCAP_L3;
 			break;
+		case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP:
+			ret = mlx5_flow_validate_action_tunnel_decap
+				(action_flags,
+				 attr,
+				 error);
+			if (ret < 0)
+				return ret;
+			action_flags |= MLX5_ACTION_TUNNEL_DECAP;
+			break;
+		case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP_L3:
+			ret = mlx5_flow_validate_action_tunnel_decap_l3
+				(action_flags,
+				 actions,
+				 attr,
+				 error);
+			if (ret < 0)
+				return ret;
+			action_flags |= MLX5_ACTION_TUNNEL_DECAP_L3;
+			break;
 		default:
 			return rte_flow_error_set(error, ENOTSUP,
 						  RTE_FLOW_ERROR_TYPE_ACTION,
@@ -1320,6 +1531,30 @@ 
 		flow->actions |= MLX5_ACTION_TUNNEL_ENCAP_L3;
 		actions_n++;
 		break;
+	case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP:
+		dev_flow->dv.actions[actions_n].type =
+			MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
+		dev_flow->dv.actions[actions_n].action =
+			mlx5_flow_dv_create_decap(action, ctx, error);
+		if (!(dev_flow->dv.actions[actions_n].action))
+			return -rte_errno;
+		dev_flow->dv.decap_verb =
+			dev_flow->dv.actions[actions_n].action;
+		flow->actions |= MLX5_ACTION_TUNNEL_DECAP;
+		actions_n++;
+		break;
+	case RTE_FLOW_ACTION_TYPE_TUNNEL_DECAP_L3:
+		dev_flow->dv.actions[actions_n].type =
+			MLX5DV_FLOW_ACTION_IBV_FLOW_ACTION;
+		dev_flow->dv.actions[actions_n].action =
+			mlx5_flow_dv_create_decap_l3(action, ctx, error);
+		if (!(dev_flow->dv.actions[actions_n].action))
+			return -rte_errno;
+		dev_flow->dv.decap_verb =
+			dev_flow->dv.actions[actions_n].action;
+		flow->actions |= MLX5_ACTION_TUNNEL_DECAP_L3;
+		actions_n++;
+		break;
 	default:
 		break;
 	}
@@ -1679,13 +1914,16 @@ 
 		LIST_REMOVE(dev_flow, next);
 		if (dev_flow->dv.matcher)
 			flow_dv_matcher_release(dev, dev_flow->dv.matcher);
-
 		if (dev_flow->dv.encap_verb) {
 			claim_zero(mlx5_glue->destroy_flow_action
 						(dev_flow->dv.encap_verb));
 			dev_flow->dv.encap_verb = NULL;
 		}
-
+		if (dev_flow->dv.decap_verb) {
+			claim_zero(mlx5_glue->destroy_flow_action
+						(dev_flow->dv.decap_verb));
+			dev_flow->dv.decap_verb = NULL;
+		}
 		rte_free(dev_flow);
 	}
 }