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net/mlx5: fix flow items size calculation

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flow_dv_get_item_len returns the actual header size of
an rte_flow item.

Changing any of the structs for rte_flow items by adding
or removing some extra fields will break this function.

This fixes the behavior by returning the actual header size
of each item.

Fixes: 34d41b7aa3 ("net/mlx5: add VXLAN encap action to Direct Verbs")
Cc: stable@dpdk.org

Signed-off-by: Raslan Darawsheh <rasland@mellanox.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@mellanox.com>
This commit is contained in:
Raslan Darawsheh 2020-07-16 15:14:55 +03:00 committed by Ferruh Yigit
parent 385c19397e
commit d13f976086
1 changed files with 14 additions and 17 deletions
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31
drivers/net/mlx5/mlx5_flow_dv.c
View file

@ -20,6 +20,7 @@
#include <rte_vxlan.h>
#include <rte_gtp.h>
#include <rte_eal_paging.h>
#include <rte_mpls.h>
#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
@ -2866,7 +2867,7 @@ flow_dv_push_vlan_action_resource_register
return 0;
}
/**
* Get the size of specific rte_flow_item_type
* Get the size of specific rte_flow_item_type hdr size
*
* @param[in] item_type
* Tested rte_flow_item_type.
@ -2875,43 +2876,39 @@ flow_dv_push_vlan_action_resource_register
* sizeof struct item_type, 0 if void or irrelevant.
*/
static size_t
flow_dv_get_item_len(const enum rte_flow_item_type item_type)
flow_dv_get_item_hdr_len(const enum rte_flow_item_type item_type)
{
size_t retval;
switch (item_type) {
case RTE_FLOW_ITEM_TYPE_ETH:
retval = sizeof(struct rte_flow_item_eth);
retval = sizeof(struct rte_ether_hdr);
break;
case RTE_FLOW_ITEM_TYPE_VLAN:
retval = sizeof(struct rte_flow_item_vlan);
retval = sizeof(struct rte_vlan_hdr);
break;
case RTE_FLOW_ITEM_TYPE_IPV4:
retval = sizeof(struct rte_flow_item_ipv4);
retval = sizeof(struct rte_ipv4_hdr);
break;
case RTE_FLOW_ITEM_TYPE_IPV6:
retval = sizeof(struct rte_flow_item_ipv6);
retval = sizeof(struct rte_ipv6_hdr);
break;
case RTE_FLOW_ITEM_TYPE_UDP:
retval = sizeof(struct rte_flow_item_udp);
retval = sizeof(struct rte_udp_hdr);
break;
case RTE_FLOW_ITEM_TYPE_TCP:
retval = sizeof(struct rte_flow_item_tcp);
retval = sizeof(struct rte_tcp_hdr);
break;
case RTE_FLOW_ITEM_TYPE_VXLAN:
retval = sizeof(struct rte_flow_item_vxlan);
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
retval = sizeof(struct rte_vxlan_hdr);
break;
case RTE_FLOW_ITEM_TYPE_GRE:
retval = sizeof(struct rte_flow_item_gre);
break;
case RTE_FLOW_ITEM_TYPE_NVGRE:
retval = sizeof(struct rte_flow_item_nvgre);
break;
case RTE_FLOW_ITEM_TYPE_VXLAN_GPE:
retval = sizeof(struct rte_flow_item_vxlan_gpe);
retval = sizeof(struct rte_gre_hdr);
break;
case RTE_FLOW_ITEM_TYPE_MPLS:
retval = sizeof(struct rte_flow_item_mpls);
retval = sizeof(struct rte_mpls_hdr);
break;
case RTE_FLOW_ITEM_TYPE_VOID: /* Fall through. */
default:
@ -2964,7 +2961,7 @@ flow_dv_convert_encap_data(const struct rte_flow_item *items, uint8_t *buf,
RTE_FLOW_ERROR_TYPE_ACTION,
NULL, "invalid empty data");
for (; items->type != RTE_FLOW_ITEM_TYPE_END; items++) {
len = flow_dv_get_item_len(items->type);
len = flow_dv_get_item_hdr_len(items->type);
if (len + temp_size > MLX5_ENCAP_MAX_LEN)
return rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,