[dpdk-stable] patch 'net/mlx5: fix modify actions support limitation' has been queued to stable release 19.11.1

Bing Zhao bingz at mellanox.com
Tue Feb 11 14:48:27 CET 2020


Hi Luca,

Many thanks for your help.

Yes, this needs to be also applied to the 19.11 stable branch. I want
to rebase it but could not find the branch in
http://git.dpdk.org/dpdk-stable/ , so would you please share me the
branch information then I can try to finish the rebasing today or
early tomorrow.

BR. Bing

> -----Original Message-----
> From: luca.boccassi at gmail.com <luca.boccassi at gmail.com>
> Sent: Tuesday, February 11, 2020 7:21 PM
> To: Bing Zhao <bingz at mellanox.com>
> Cc: Ori Kam <orika at mellanox.com>; Slava Ovsiienko
> <viacheslavo at mellanox.com>; dpdk stable <stable at dpdk.org>
> Subject: patch 'net/mlx5: fix modify actions support limitation' has
> been queued to stable release 19.11.1
> 
> Hi,
> 
> FYI, your patch has been queued to stable release 19.11.1
> 
> Note it hasn't been pushed to
> https://eur03.safelinks.protection.outlook.com/?url=http%3A%2F%2F
> dpdk.org%2Fbrowse%2Fdpdk-
> stable&data=02%7C01%7Cbingz%40mellanox.com%7Cf31d20ac8c
> 4e427386a108d7aee5e8c2%7Ca652971c7d2e4d9ba6a4d149256f461b%
> 7C0%7C0%7C637170174781961835&sdata=no%2BG5nKNzaYL72n
> 3vf5v0ZmfmJLRLNcPfwqgf4YJNU0%3D&reserved=0 yet.
> It will be pushed if I get no objections before 02/13/20. So please shout
> if anyone has objections.
> 
> Also note that after the patch there's a diff of the upstream commit vs
> the patch applied to the branch. This will indicate if there was any
> rebasing needed to apply to the stable branch. If there were code
> changes for rebasing
> (ie: not only metadata diffs), please double check that the rebase was
> correctly done.
> 
> Thanks.
> 
> Luca Boccassi
> 
> ---
> From e0de816f945e599a933081c53bb060d5dd4cbf13 Mon Sep 17
> 00:00:00 2001
> From: Bing Zhao <bingz at mellanox.com>
> Date: Mon, 20 Jan 2020 11:43:07 +0200
> Subject: [PATCH] net/mlx5: fix modify actions support limitation
> 
> [ upstream commit 024e95759c16c67eee92efffeee34915dc94a9c0 ]
> 
> In the root table, there is some limitation of total number of header
> modify actions, 16 or 8 for each. But in other tables, there is no such
> strict limitation. In an IPv6 case, the IP fields modifying will occupy
> more actions than that in IPv4, so the total support number should be
> increased in order to support as many actions as possible for an IPv6 +
> TCP packet.
> And in the meanwhile, the memory consumption should also be taken
> into consideration because sometimes only several actions are needed.
> The root table checking could also be done in low layer driver and the
> error code will be returned if the actions number is over the maximal
> supported value.
> 
> Fixes: 0e9d00027686 ("net/mlx5: check maximum modify actions
> number")
> 
> Signed-off-by: Bing Zhao <bingz at mellanox.com>
> Acked-by: Ori Kam <orika at mellanox.com>
> Acked-by: Viacheslav Ovsiienko <viacheslavo at mellanox.com>
> ---
>  drivers/net/mlx5/mlx5_flow.h    |  15 +++--
>  drivers/net/mlx5/mlx5_flow_dv.c | 104 +++++++++++++++++-------------
> --
>  2 files changed, 66 insertions(+), 53 deletions(-)
> 
> diff --git a/drivers/net/mlx5/mlx5_flow.h
> b/drivers/net/mlx5/mlx5_flow.h index db12715ecc..13bed08d75
> 100644
> --- a/drivers/net/mlx5/mlx5_flow.h
> +++ b/drivers/net/mlx5/mlx5_flow.h
> @@ -391,11 +391,14 @@ struct mlx5_flow_dv_tag_resource {
> 
>  /*
>   * Number of modification commands.
> - * If extensive metadata registers are supported
> - * the maximal actions amount is 16 and 8 otherwise.
> + * If extensive metadata registers are supported, the maximal actions
> + amount is
> + * 16 and 8 otherwise on root table. The validation could also be done
> + in the
> + * lower driver layer.
> + * On non-root table, there is no limitation, but 32 is enough right
> now.
>   */
> -#define MLX5_MODIFY_NUM 16
> -#define MLX5_MODIFY_NUM_NO_MREG 8
> +#define MLX5_MAX_MODIFY_NUM			32
> +#define MLX5_ROOT_TBL_MODIFY_NUM		16
> +#define MLX5_ROOT_TBL_MODIFY_NUM_NO_MREG	8
> 
>  /* Modify resource structure */
>  struct mlx5_flow_dv_modify_hdr_resource { @@ -406,9 +409,9 @@
> struct mlx5_flow_dv_modify_hdr_resource {
>  	/**< Verbs modify header action object. */
>  	uint8_t ft_type; /**< Flow table type, Rx or Tx. */
>  	uint32_t actions_num; /**< Number of modification actions.
> */
> -	struct mlx5_modification_cmd actions[MLX5_MODIFY_NUM];
> +	uint64_t flags; /**< Flags for RDMA API. */
> +	struct mlx5_modification_cmd actions[];
>  	/**< Modification actions. */
> -	uint64_t flags; /**< Flags for RDMA API. */
>  };
> 
>  /* Jump action resource structure. */
> diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> b/drivers/net/mlx5/mlx5_flow_dv.c index 8f77909419..74d1a68e4a
> 100644
> --- a/drivers/net/mlx5/mlx5_flow_dv.c
> +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> @@ -363,7 +363,7 @@ flow_dv_convert_modify_action(struct
> rte_flow_item *item,
>  		uint32_t mask;
>  		uint32_t data;
> 
> -		if (i >= MLX5_MODIFY_NUM)
> +		if (i >= MLX5_MAX_MODIFY_NUM)
>  			return rte_flow_error_set(error, EINVAL,
>  				 RTE_FLOW_ERROR_TYPE_ACTION,
> NULL,
>  				 "too many items to modify");
> @@ -404,11 +404,11 @@ flow_dv_convert_modify_action(struct
> rte_flow_item *item,
>  		++i;
>  		++field;
>  	} while (field->size);
> -	resource->actions_num = i;
> -	if (!resource->actions_num)
> +	if (resource->actions_num == i)
>  		return rte_flow_error_set(error, EINVAL,
> 
> RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>  					  "invalid modification flow
> item");
> +	resource->actions_num = i;
>  	return 0;
>  }
> 
> @@ -569,7 +569,7 @@ flow_dv_convert_action_modify_vlan_vid
>  	struct mlx5_modification_cmd *actions = &resource->actions[i];
>  	struct field_modify_info *field = modify_vlan_out_first_vid;
> 
> -	if (i >= MLX5_MODIFY_NUM)
> +	if (i >= MLX5_MAX_MODIFY_NUM)
>  		return rte_flow_error_set(error, EINVAL,
>  			 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>  			 "too many items to modify");
> @@ -902,7 +902,7 @@ flow_dv_convert_action_set_reg
>  	struct mlx5_modification_cmd *actions = resource->actions;
>  	uint32_t i = resource->actions_num;
> 
> -	if (i >= MLX5_MODIFY_NUM)
> +	if (i >= MLX5_MAX_MODIFY_NUM)
>  		return rte_flow_error_set(error, EINVAL,
> 
> RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>  					  "too many items to modify");
> @@ -914,10 +914,6 @@ flow_dv_convert_action_set_reg
>  	actions[i].data1 = rte_cpu_to_be_32(conf->data);
>  	++i;
>  	resource->actions_num = i;
> -	if (!resource->actions_num)
> -		return rte_flow_error_set(error, EINVAL,
> -
> RTE_FLOW_ERROR_TYPE_ACTION, NULL,
> -					  "invalid modification flow
> item");
>  	return 0;
>  }
> 
> @@ -2256,7 +2252,6 @@ flow_dv_encap_decap_resource_register
>  		domain = sh->rx_domain;
>  	else
>  		domain = sh->tx_domain;
> -
>  	/* Lookup a matching resource from cache. */
>  	LIST_FOREACH(cache_resource, &sh->encaps_decaps, next) {
>  		if (resource->reformat_type == cache_resource-
> >reformat_type && @@ -3367,21 +3362,27 @@
> flow_dv_validate_action_port_id(struct rte_eth_dev *dev,
>   *
>   * @param dev
>   *   Pointer to rte_eth_dev structure.
> + * @param flags
> + *   Flags bits to check if root level.
>   *
>   * @return
>   *   Max number of modify header actions device can support.
>   */
>  static unsigned int
> -flow_dv_modify_hdr_action_max(struct rte_eth_dev *dev)
> +flow_dv_modify_hdr_action_max(struct rte_eth_dev *dev, uint64_t
> flags)
>  {
>  	/*
>  	 * There's no way to directly query the max cap. Although it
> has to be
>  	 * acquried by iterative trial, it is a safe assumption that more
>  	 * actions are supported by FW if extensive metadata register
> is
> -	 * supported.
> +	 * supported. (Only in the root table)
>  	 */
> -	return mlx5_flow_ext_mreg_supported(dev) ?
> MLX5_MODIFY_NUM :
> -
> MLX5_MODIFY_NUM_NO_MREG;
> +	if (!(flags & MLX5DV_DR_ACTION_FLAGS_ROOT_LEVEL))
> +		return MLX5_MAX_MODIFY_NUM;
> +	else
> +		return mlx5_flow_ext_mreg_supported(dev) ?
> +
> 	MLX5_ROOT_TBL_MODIFY_NUM :
> +
> 	MLX5_ROOT_TBL_MODIFY_NUM_NO_MREG;
>  }
> 
>  /**
> @@ -3472,8 +3473,12 @@ flow_dv_modify_hdr_resource_register
>  	struct mlx5_ibv_shared *sh = priv->sh;
>  	struct mlx5_flow_dv_modify_hdr_resource *cache_resource;
>  	struct mlx5dv_dr_domain *ns;
> +	uint32_t actions_len;
> 
> -	if (resource->actions_num >
> flow_dv_modify_hdr_action_max(dev))
> +	resource->flags =
> +		dev_flow->group ? 0 :
> MLX5DV_DR_ACTION_FLAGS_ROOT_LEVEL;
> +	if (resource->actions_num >
> flow_dv_modify_hdr_action_max(dev,
> +				    resource->flags))
>  		return rte_flow_error_set(error, EOVERFLOW,
> 
> RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>  					  "too many modify header
> items"); @@ -3483,17 +3488,15 @@
> flow_dv_modify_hdr_resource_register
>  		ns = sh->tx_domain;
>  	else
>  		ns = sh->rx_domain;
> -	resource->flags =
> -		dev_flow->group ? 0 :
> MLX5DV_DR_ACTION_FLAGS_ROOT_LEVEL;
>  	/* Lookup a matching resource from cache. */
> +	actions_len = resource->actions_num * sizeof(resource-
> >actions[0]);
>  	LIST_FOREACH(cache_resource, &sh->modify_cmds, next) {
>  		if (resource->ft_type == cache_resource->ft_type &&
>  		    resource->actions_num == cache_resource-
> >actions_num &&
>  		    resource->flags == cache_resource->flags &&
>  		    !memcmp((const void *)resource->actions,
>  			    (const void *)cache_resource->actions,
> -			    (resource->actions_num *
> -					    sizeof(resource-
> >actions[0])))) {
> +			    actions_len)) {
>  			DRV_LOG(DEBUG, "modify-header
> resource %p: refcnt %d++",
>  				(void *)cache_resource,
>  				rte_atomic32_read(&cache_resource-
> >refcnt));
> @@ -3503,18 +3506,18 @@ flow_dv_modify_hdr_resource_register
>  		}
>  	}
>  	/* Register new modify-header resource. */
> -	cache_resource = rte_calloc(__func__, 1,
> sizeof(*cache_resource), 0);
> +	cache_resource = rte_calloc(__func__, 1,
> +				    sizeof(*cache_resource) +
> actions_len, 0);
>  	if (!cache_resource)
>  		return rte_flow_error_set(error, ENOMEM,
> 
> RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
>  					  "cannot allocate resource
> memory");
>  	*cache_resource = *resource;
> +	rte_memcpy(cache_resource->actions, resource->actions,
> actions_len);
>  	cache_resource->verbs_action =
>  		mlx5_glue->dv_create_flow_action_modify_header
> -					(sh->ctx, cache_resource-
> >ft_type,
> -					 ns, cache_resource->flags,
> -					 cache_resource->actions_num
> *
> -					 sizeof(cache_resource-
> >actions[0]),
> +					(sh->ctx, cache_resource-
> >ft_type, ns,
> +					 cache_resource->flags,
> actions_len,
>  					 (uint64_t *)cache_resource-
> >actions);
>  	if (!cache_resource->verbs_action) {
>  		rte_free(cache_resource);
> @@ -6670,10 +6673,13 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>  	};
>  	int actions_n = 0;
>  	bool actions_end = false;
> -	struct mlx5_flow_dv_modify_hdr_resource mhdr_res = {
> -		.ft_type = attr->egress ?
> MLX5DV_FLOW_TABLE_TYPE_NIC_TX :
> -
> MLX5DV_FLOW_TABLE_TYPE_NIC_RX
> -	};
> +	union {
> +		struct mlx5_flow_dv_modify_hdr_resource res;
> +		uint8_t len[sizeof(struct
> mlx5_flow_dv_modify_hdr_resource) +
> +			    sizeof(struct mlx5_modification_cmd) *
> +			    (MLX5_MAX_MODIFY_NUM + 1)];
> +	} mhdr_dummy;
> +	struct mlx5_flow_dv_modify_hdr_resource *mhdr_res =
> &mhdr_dummy.res;
>  	union flow_dv_attr flow_attr = { .attr = 0 };
>  	uint32_t tag_be;
>  	union mlx5_flow_tbl_key tbl_key;
> @@ -6685,15 +6691,19 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>  	uint32_t table;
>  	int ret = 0;
> 
> +	mhdr_res->ft_type = attr->egress ?
> MLX5DV_FLOW_TABLE_TYPE_NIC_TX :
> +
> MLX5DV_FLOW_TABLE_TYPE_NIC_RX;
>  	ret = mlx5_flow_group_to_table(attr, dev_flow->external, attr-
> >group,
>  				       &table, error);
>  	if (ret)
>  		return ret;
>  	dev_flow->group = table;
>  	if (attr->transfer)
> -		mhdr_res.ft_type = MLX5DV_FLOW_TABLE_TYPE_FDB;
> +		mhdr_res->ft_type = MLX5DV_FLOW_TABLE_TYPE_FDB;
>  	if (priority == MLX5_FLOW_PRIO_RSVD)
>  		priority = dev_conf->flow_prio - 1;
> +	/* number of actions must be set to 0 in case of dirty stack. */
> +	mhdr_res->actions_num = 0;
>  	for (; !actions_end ; actions++) {
>  		const struct rte_flow_action_queue *queue;
>  		const struct rte_flow_action_rss *rss; @@ -6731,7
> +6741,7 @@ __flow_dv_translate(struct rte_eth_dev *dev,
>  				};
> 
>  				if (flow_dv_convert_action_mark(dev,
> &mark,
> -
> 	&mhdr_res,
> +
> 	mhdr_res,
>  								error))
>  					return -rte_errno;
>  				action_flags |=
> MLX5_FLOW_ACTION_MARK_EXT; @@ -6753,7 +6763,7 @@
> __flow_dv_translate(struct rte_eth_dev *dev,
>  						actions->conf;
> 
>  				if (flow_dv_convert_action_mark(dev,
> mark,
> -
> 	&mhdr_res,
> +
> 	mhdr_res,
>  								error))
>  					return -rte_errno;
>  				action_flags |=
> MLX5_FLOW_ACTION_MARK_EXT; @@ -6774,7 +6784,7 @@
> __flow_dv_translate(struct rte_eth_dev *dev,
>  			break;
>  		case RTE_FLOW_ACTION_TYPE_SET_META:
>  			if (flow_dv_convert_action_set_meta
> -				(dev, &mhdr_res, attr,
> +				(dev, mhdr_res, attr,
>  				 (const struct
> rte_flow_action_set_meta *)
>  				  actions->conf, error))
>  				return -rte_errno;
> @@ -6782,7 +6792,7 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>  			break;
>  		case RTE_FLOW_ACTION_TYPE_SET_TAG:
>  			if (flow_dv_convert_action_set_tag
> -				(dev, &mhdr_res,
> +				(dev, mhdr_res,
>  				 (const struct rte_flow_action_set_tag *)
>  				  actions->conf, error))
>  				return -rte_errno;
> @@ -6882,7 +6892,7 @@ cnt_err:
>  			mlx5_update_vlan_vid_pcp(actions, &vlan);
>  			/* If no VLAN push - this is a modify header
> action */
>  			if (flow_dv_convert_action_modify_vlan_vid
> -						(&mhdr_res, actions,
> error))
> +						(mhdr_res, actions,
> error))
>  				return -rte_errno;
>  			action_flags |=
> MLX5_FLOW_ACTION_OF_SET_VLAN_VID;
>  			break;
> @@ -6981,7 +6991,7 @@ cnt_err:
>  		case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
>  		case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
>  			if (flow_dv_convert_action_modify_mac
> -					(&mhdr_res, actions, error))
> +					(mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
> @@ -6991,7 +7001,7 @@ cnt_err:
>  		case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
>  		case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
>  			if (flow_dv_convert_action_modify_ipv4
> -					(&mhdr_res, actions, error))
> +					(mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC ?
> @@ -7001,7 +7011,7 @@ cnt_err:
>  		case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
>  		case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
>  			if (flow_dv_convert_action_modify_ipv6
> -					(&mhdr_res, actions, error))
> +					(mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC ?
> @@ -7011,7 +7021,7 @@ cnt_err:
>  		case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
>  		case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
>  			if (flow_dv_convert_action_modify_tp
> -					(&mhdr_res, actions, items,
> +					(mhdr_res, actions, items,
>  					 &flow_attr, error))
>  				return -rte_errno;
>  			action_flags |= actions->type ==
> @@ -7021,13 +7031,13 @@ cnt_err:
>  			break;
>  		case RTE_FLOW_ACTION_TYPE_DEC_TTL:
>  			if (flow_dv_convert_action_modify_dec_ttl
> -					(&mhdr_res, items, &flow_attr,
> error))
> +					(mhdr_res, items, &flow_attr,
> error))
>  				return -rte_errno;
>  			action_flags |= MLX5_FLOW_ACTION_DEC_TTL;
>  			break;
>  		case RTE_FLOW_ACTION_TYPE_SET_TTL:
>  			if (flow_dv_convert_action_modify_ttl
> -					(&mhdr_res, actions, items,
> +					(mhdr_res, actions, items,
>  					 &flow_attr, error))
>  				return -rte_errno;
>  			action_flags |= MLX5_FLOW_ACTION_SET_TTL;
> @@ -7035,7 +7045,7 @@ cnt_err:
>  		case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
>  		case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
>  			if (flow_dv_convert_action_modify_tcp_seq
> -					(&mhdr_res, actions, error))
> +					(mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ ?
> @@ -7046,7 +7056,7 @@ cnt_err:
>  		case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
>  		case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
>  			if (flow_dv_convert_action_modify_tcp_ack
> -					(&mhdr_res, actions, error))
> +					(mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_INC_TCP_ACK ?
> @@ -7055,13 +7065,13 @@ cnt_err:
>  			break;
>  		case MLX5_RTE_FLOW_ACTION_TYPE_TAG:
>  			if (flow_dv_convert_action_set_reg
> -					(&mhdr_res, actions, error))
> +					(mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= MLX5_FLOW_ACTION_SET_TAG;
>  			break;
>  		case MLX5_RTE_FLOW_ACTION_TYPE_COPY_MREG:
>  			if (flow_dv_convert_action_copy_mreg
> -					(dev, &mhdr_res, actions,
> error))
> +					(dev, mhdr_res, actions, error))
>  				return -rte_errno;
>  			action_flags |= MLX5_FLOW_ACTION_SET_TAG;
>  			break;
> @@ -7086,10 +7096,10 @@ cnt_err:
>  			break;
>  		case RTE_FLOW_ACTION_TYPE_END:
>  			actions_end = true;
> -			if (mhdr_res.actions_num) {
> +			if (mhdr_res->actions_num) {
>  				/* create modify action if needed. */
>  				if
> (flow_dv_modify_hdr_resource_register
> -					(dev, &mhdr_res, dev_flow,
> error))
> +					(dev, mhdr_res, dev_flow,
> error))
>  					return -rte_errno;
>  				dev_flow-
> >dv.actions[modify_action_position] =
>  					dev_flow->dv.modify_hdr-
> >verbs_action;
> @@ -7098,7 +7108,7 @@ cnt_err:
>  		default:
>  			break;
>  		}
> -		if (mhdr_res.actions_num &&
> +		if (mhdr_res->actions_num &&
>  		    modify_action_position == UINT32_MAX)
>  			modify_action_position = actions_n++;
>  	}
> --
> 2.20.1
> 
> ---
>   Diff of the applied patch vs upstream commit (please double-check if
> non-empty:
> ---
> --- -	2020-02-11 11:17:42.994804790 +0000
> +++ 0122-net-mlx5-fix-modify-actions-support-limitation.patch	2020-
> 02-11 11:17:38.612005311 +0000
> @@ -1,8 +1,10 @@
> -From 024e95759c16c67eee92efffeee34915dc94a9c0 Mon Sep 17
> 00:00:00 2001
> +From e0de816f945e599a933081c53bb060d5dd4cbf13 Mon Sep 17
> 00:00:00 2001
>  From: Bing Zhao <bingz at mellanox.com>
>  Date: Mon, 20 Jan 2020 11:43:07 +0200
>  Subject: [PATCH] net/mlx5: fix modify actions support limitation
> 
> +[ upstream commit 024e95759c16c67eee92efffeee34915dc94a9c0 ]
> +
>  In the root table, there is some limitation of total number of header
> modify actions, 16 or 8 for each. But in other tables, there is no  such
> strict limitation. In an IPv6 case, the IP fields modifying @@ -16,21
> +18,20 @@  maximal supported value.
> 
>  Fixes: 0e9d00027686 ("net/mlx5: check maximum modify actions
> number")
> -Cc: stable at dpdk.org
> 
>  Signed-off-by: Bing Zhao <bingz at mellanox.com>
>  Acked-by: Ori Kam <orika at mellanox.com>
>  Acked-by: Viacheslav Ovsiienko <viacheslavo at mellanox.com>
>  ---
>   drivers/net/mlx5/mlx5_flow.h    |  15 +++--
> - drivers/net/mlx5/mlx5_flow_dv.c | 108 +++++++++++++++++------------
> ---
> - 2 files changed, 68 insertions(+), 55 deletions(-)
> + drivers/net/mlx5/mlx5_flow_dv.c | 104 +++++++++++++++++-----------
> ----
> + 2 files changed, 66 insertions(+), 53 deletions(-)
> 
>  diff --git a/drivers/net/mlx5/mlx5_flow.h
> b/drivers/net/mlx5/mlx5_flow.h -index a1c7b67488..9832542328
> 100644
> +index db12715ecc..13bed08d75 100644
>  --- a/drivers/net/mlx5/mlx5_flow.h
>  +++ b/drivers/net/mlx5/mlx5_flow.h
> -@@ -392,11 +392,14 @@ struct mlx5_flow_dv_tag_resource {
> +@@ -391,11 +391,14 @@ struct mlx5_flow_dv_tag_resource {
> 
>   /*
>    * Number of modification commands.
> @@ -49,7 +50,7 @@
> 
>   /* Modify resource structure */
>   struct mlx5_flow_dv_modify_hdr_resource { -@@ -407,9 +410,9 @@
> struct mlx5_flow_dv_modify_hdr_resource {
> +@@ -406,9 +409,9 @@ struct mlx5_flow_dv_modify_hdr_resource {
>   	/**< Verbs modify header action object. */
>   	uint8_t ft_type; /**< Flow table type, Rx or Tx. */
>   	uint32_t actions_num; /**< Number of modification actions.
> */ @@ -62,10 +63,10 @@
> 
>   /* Jump action resource structure. */
>  diff --git a/drivers/net/mlx5/mlx5_flow_dv.c
> b/drivers/net/mlx5/mlx5_flow_dv.c -index 26dbaaf329..5a1b42698c
> 100644
> +index 8f77909419..74d1a68e4a 100644
>  --- a/drivers/net/mlx5/mlx5_flow_dv.c
>  +++ b/drivers/net/mlx5/mlx5_flow_dv.c
> -@@ -366,7 +366,7 @@ flow_dv_convert_modify_action(struct
> rte_flow_item *item,
> +@@ -363,7 +363,7 @@ flow_dv_convert_modify_action(struct
> rte_flow_item
> +*item,
>   		uint32_t mask;
>   		uint32_t data;
> 
> @@ -74,7 +75,7 @@
>   			return rte_flow_error_set(error, EINVAL,
>   				 RTE_FLOW_ERROR_TYPE_ACTION,
> NULL,
>   				 "too many items to modify");
> -@@ -407,11 +407,11 @@ flow_dv_convert_modify_action(struct
> rte_flow_item *item,
> +@@ -404,11 +404,11 @@ flow_dv_convert_modify_action(struct
> +rte_flow_item *item,
>   		++i;
>   		++field;
>   	} while (field->size);
> @@ -88,7 +89,7 @@
>   	return 0;
>   }
> 
> -@@ -572,7 +572,7 @@ flow_dv_convert_action_modify_vlan_vid
> +@@ -569,7 +569,7 @@ flow_dv_convert_action_modify_vlan_vid
>   	struct mlx5_modification_cmd *actions = &resource->actions[i];
>   	struct field_modify_info *field = modify_vlan_out_first_vid;
> 
> @@ -97,7 +98,7 @@
>   		return rte_flow_error_set(error, EINVAL,
>   			 RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>   			 "too many items to modify");
> -@@ -905,7 +905,7 @@ flow_dv_convert_action_set_reg
> +@@ -902,7 +902,7 @@ flow_dv_convert_action_set_reg
>   	struct mlx5_modification_cmd *actions = resource->actions;
>   	uint32_t i = resource->actions_num;
> 
> @@ -106,7 +107,7 @@
>   		return rte_flow_error_set(error, EINVAL,
> 
> RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>   					  "too many items to modify");
> -@@ -917,10 +917,6 @@ flow_dv_convert_action_set_reg
> +@@ -914,10 +914,6 @@ flow_dv_convert_action_set_reg
>   	actions[i].data1 = rte_cpu_to_be_32(conf->data);
>   	++i;
>   	resource->actions_num = i;
> @@ -117,7 +118,7 @@
>   	return 0;
>   }
> 
> -@@ -2385,7 +2381,6 @@ flow_dv_encap_decap_resource_register
> +@@ -2256,7 +2252,6 @@ flow_dv_encap_decap_resource_register
>   		domain = sh->rx_domain;
>   	else
>   		domain = sh->tx_domain;
> @@ -125,7 +126,7 @@
>   	/* Lookup a matching resource from cache. */
>   	LIST_FOREACH(cache_resource, &sh->encaps_decaps, next) {
>   		if (resource->reformat_type == cache_resource-
> >reformat_type && -@@ -3496,21 +3491,27 @@
> flow_dv_validate_action_port_id(struct rte_eth_dev *dev,
> +@@ -3367,21 +3362,27 @@ flow_dv_validate_action_port_id(struct
> +rte_eth_dev *dev,
>    *
>    * @param dev
>    *   Pointer to rte_eth_dev structure.
> @@ -157,7 +158,7 @@
>   }
> 
>   /**
> -@@ -3669,8 +3670,12 @@ flow_dv_modify_hdr_resource_register
> +@@ -3472,8 +3473,12 @@ flow_dv_modify_hdr_resource_register
>   	struct mlx5_ibv_shared *sh = priv->sh;
>   	struct mlx5_flow_dv_modify_hdr_resource *cache_resource;
>   	struct mlx5dv_dr_domain *ns;
> @@ -171,7 +172,7 @@
>   		return rte_flow_error_set(error, EOVERFLOW,
> 
> RTE_FLOW_ERROR_TYPE_ACTION, NULL,
>   					  "too many modify header
> items"); -@@ -3680,17 +3685,15 @@
> flow_dv_modify_hdr_resource_register
> +@@ -3483,17 +3488,15 @@ flow_dv_modify_hdr_resource_register
>   		ns = sh->tx_domain;
>   	else
>   		ns = sh->rx_domain;
> @@ -191,7 +192,7 @@
>   			DRV_LOG(DEBUG, "modify-header
> resource %p: refcnt %d++",
>   				(void *)cache_resource,
>   				rte_atomic32_read(&cache_resource-
> >refcnt));
> -@@ -3700,18 +3703,18 @@ flow_dv_modify_hdr_resource_register
> +@@ -3503,18 +3506,18 @@ flow_dv_modify_hdr_resource_register
>   		}
>   	}
>   	/* Register new modify-header resource. */ @@ -215,7 +216,7
> @@
>   					 (uint64_t *)cache_resource-
> >actions);
>   	if (!cache_resource->verbs_action) {
>   		rte_free(cache_resource);
> -@@ -7020,10 +7023,13 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
> +@@ -6670,10 +6673,13 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>   	};
>   	int actions_n = 0;
>   	bool actions_end = false;
> @@ -233,7 +234,7 @@
>   	union flow_dv_attr flow_attr = { .attr = 0 };
>   	uint32_t tag_be;
>   	union mlx5_flow_tbl_key tbl_key;
> -@@ -7035,15 +7041,19 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
> +@@ -6685,15 +6691,19 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>   	uint32_t table;
>   	int ret = 0;
> 
> @@ -254,7 +255,7 @@
>   	for (; !actions_end ; actions++) {
>   		const struct rte_flow_action_queue *queue;
>   		const struct rte_flow_action_rss *rss; -@@ -7081,7
> +7091,7 @@ __flow_dv_translate(struct rte_eth_dev *dev,
> +@@ -6731,7 +6741,7 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>   				};
> 
>   				if (flow_dv_convert_action_mark(dev,
> &mark, @@ -263,7 +264,7 @@
>   								error))
>   					return -rte_errno;
>   				action_flags |=
> MLX5_FLOW_ACTION_MARK_EXT; -@@ -7103,7 +7113,7 @@
> __flow_dv_translate(struct rte_eth_dev *dev,
> +@@ -6753,7 +6763,7 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>   						actions->conf;
> 
>   				if (flow_dv_convert_action_mark(dev,
> mark, @@ -272,7 +273,7 @@
>   								error))
>   					return -rte_errno;
>   				action_flags |=
> MLX5_FLOW_ACTION_MARK_EXT; -@@ -7124,7 +7134,7 @@
> __flow_dv_translate(struct rte_eth_dev *dev,
> +@@ -6774,7 +6784,7 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>   			break;
>   		case RTE_FLOW_ACTION_TYPE_SET_META:
>   			if (flow_dv_convert_action_set_meta @@ -
> 281,7 +282,7 @@
>   				 (const struct
> rte_flow_action_set_meta *)
>   				  actions->conf, error))
>   				return -rte_errno;
> -@@ -7132,7 +7142,7 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
> +@@ -6782,7 +6792,7 @@ __flow_dv_translate(struct rte_eth_dev
> *dev,
>   			break;
>   		case RTE_FLOW_ACTION_TYPE_SET_TAG:
>   			if (flow_dv_convert_action_set_tag
> @@ -290,7 +291,7 @@
>   				 (const struct rte_flow_action_set_tag *)
>   				  actions->conf, error))
>   				return -rte_errno;
> -@@ -7232,7 +7242,7 @@ cnt_err:
> +@@ -6882,7 +6892,7 @@ cnt_err:
>   			mlx5_update_vlan_vid_pcp(actions, &vlan);
>   			/* If no VLAN push - this is a modify header
> action */
>   			if (flow_dv_convert_action_modify_vlan_vid
> @@ -299,7 +300,7 @@
>   				return -rte_errno;
>   			action_flags |=
> MLX5_FLOW_ACTION_OF_SET_VLAN_VID;
>   			break;
> -@@ -7331,7 +7341,7 @@ cnt_err:
> +@@ -6981,7 +6991,7 @@ cnt_err:
>   		case RTE_FLOW_ACTION_TYPE_SET_MAC_SRC:
>   		case RTE_FLOW_ACTION_TYPE_SET_MAC_DST:
>   			if (flow_dv_convert_action_modify_mac
> @@ -308,7 +309,7 @@
>   				return -rte_errno;
>   			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_SET_MAC_SRC ?
> -@@ -7341,7 +7351,7 @@ cnt_err:
> +@@ -6991,7 +7001,7 @@ cnt_err:
>   		case RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC:
>   		case RTE_FLOW_ACTION_TYPE_SET_IPV4_DST:
>   			if (flow_dv_convert_action_modify_ipv4
> @@ -317,7 +318,7 @@
>   				return -rte_errno;
>   			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_SET_IPV4_SRC ?
> -@@ -7351,7 +7361,7 @@ cnt_err:
> +@@ -7001,7 +7011,7 @@ cnt_err:
>   		case RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC:
>   		case RTE_FLOW_ACTION_TYPE_SET_IPV6_DST:
>   			if (flow_dv_convert_action_modify_ipv6
> @@ -326,7 +327,7 @@
>   				return -rte_errno;
>   			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_SET_IPV6_SRC ?
> -@@ -7361,7 +7371,7 @@ cnt_err:
> +@@ -7011,7 +7021,7 @@ cnt_err:
>   		case RTE_FLOW_ACTION_TYPE_SET_TP_SRC:
>   		case RTE_FLOW_ACTION_TYPE_SET_TP_DST:
>   			if (flow_dv_convert_action_modify_tp @@ -
> 335,7 +336,7 @@
>   					 &flow_attr, error))
>   				return -rte_errno;
>   			action_flags |= actions->type ==
> -@@ -7371,13 +7381,13 @@ cnt_err:
> +@@ -7021,13 +7031,13 @@ cnt_err:
>   			break;
>   		case RTE_FLOW_ACTION_TYPE_DEC_TTL:
>   			if (flow_dv_convert_action_modify_dec_ttl
> @@ -351,7 +352,7 @@
>   					 &flow_attr, error))
>   				return -rte_errno;
>   			action_flags |= MLX5_FLOW_ACTION_SET_TTL;
> -@@ -7385,7 +7395,7 @@ cnt_err:
> +@@ -7035,7 +7045,7 @@ cnt_err:
>   		case RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ:
>   		case RTE_FLOW_ACTION_TYPE_DEC_TCP_SEQ:
>   			if (flow_dv_convert_action_modify_tcp_seq
> @@ -360,7 +361,7 @@
>   				return -rte_errno;
>   			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_INC_TCP_SEQ ?
> -@@ -7396,7 +7406,7 @@ cnt_err:
> +@@ -7046,7 +7056,7 @@ cnt_err:
>   		case RTE_FLOW_ACTION_TYPE_INC_TCP_ACK:
>   		case RTE_FLOW_ACTION_TYPE_DEC_TCP_ACK:
>   			if (flow_dv_convert_action_modify_tcp_ack
> @@ -369,7 +370,7 @@
>   				return -rte_errno;
>   			action_flags |= actions->type ==
> 
> 	RTE_FLOW_ACTION_TYPE_INC_TCP_ACK ?
> -@@ -7405,13 +7415,13 @@ cnt_err:
> +@@ -7055,13 +7065,13 @@ cnt_err:
>   			break;
>   		case MLX5_RTE_FLOW_ACTION_TYPE_TAG:
>   			if (flow_dv_convert_action_set_reg
> @@ -385,22 +386,7 @@
>   				return -rte_errno;
>   			action_flags |= MLX5_FLOW_ACTION_SET_TAG;
>   			break;
> -@@ -7435,23 +7445,23 @@ cnt_err:
> - 			action_flags |= MLX5_FLOW_ACTION_METER;
> - 			break;
> - 		case RTE_FLOW_ACTION_TYPE_SET_IPV4_DSCP:
> --			if
> (flow_dv_convert_action_modify_ipv4_dscp(&mhdr_res,
> -+			if
> (flow_dv_convert_action_modify_ipv4_dscp(mhdr_res,
> - 							      actions,
> error))
> - 				return -rte_errno;
> - 			action_flags |=
> MLX5_FLOW_ACTION_SET_IPV4_DSCP;
> - 			break;
> - 		case RTE_FLOW_ACTION_TYPE_SET_IPV6_DSCP:
> --			if
> (flow_dv_convert_action_modify_ipv6_dscp(&mhdr_res,
> -+			if
> (flow_dv_convert_action_modify_ipv6_dscp(mhdr_res,
> - 							      actions,
> error))
> - 				return -rte_errno;
> - 			action_flags |=
> MLX5_FLOW_ACTION_SET_IPV6_DSCP;
> +@@ -7086,10 +7096,10 @@ cnt_err:
>   			break;
>   		case RTE_FLOW_ACTION_TYPE_END:
>   			actions_end = true;
> @@ -413,7 +399,7 @@
>   					return -rte_errno;
>   				dev_flow-
> >dv.actions[modify_action_position] =
>   					dev_flow->dv.modify_hdr-
> >verbs_action;
> -@@ -7460,7 +7470,7 @@ cnt_err:
> +@@ -7098,7 +7108,7 @@ cnt_err:
>   		default:
>   			break;
>   		}


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