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net/mlx5: improve flow error explanation

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Fill the error context in conversion function to provide a better reason on
why it cannot be done to the user.

Signed-off-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>
This commit is contained in:
Nélio Laranjeiro 2018-03-13 15:17:38 +01:00 committed by Ferruh Yigit
parent 749365717f
commit fca1301768
1 changed files with 40 additions and 32 deletions
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72
drivers/net/mlx5/mlx5_flow.c
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@ -44,40 +44,46 @@ struct ibv_flow_spec_counter_action {
extern const struct eth_dev_ops mlx5_dev_ops; extern const struct eth_dev_ops mlx5_dev_ops;
extern const struct eth_dev_ops mlx5_dev_ops_isolate; extern const struct eth_dev_ops mlx5_dev_ops_isolate;
/** Structure give to the conversion functions. */
struct mlx5_flow_data {
struct mlx5_flow_parse *parser; /** Parser context. */
struct rte_flow_error *error; /** Error context. */
};
static int static int
mlx5_flow_create_eth(const struct rte_flow_item *item, mlx5_flow_create_eth(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
static int static int
mlx5_flow_create_vlan(const struct rte_flow_item *item, mlx5_flow_create_vlan(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
static int static int
mlx5_flow_create_ipv4(const struct rte_flow_item *item, mlx5_flow_create_ipv4(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
static int static int
mlx5_flow_create_ipv6(const struct rte_flow_item *item, mlx5_flow_create_ipv6(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
static int static int
mlx5_flow_create_udp(const struct rte_flow_item *item, mlx5_flow_create_udp(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
static int static int
mlx5_flow_create_tcp(const struct rte_flow_item *item, mlx5_flow_create_tcp(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
static int static int
mlx5_flow_create_vxlan(const struct rte_flow_item *item, mlx5_flow_create_vxlan(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
struct mlx5_flow_parse; struct mlx5_flow_parse;
@ -252,7 +258,7 @@ struct mlx5_flow_items {
*/ */
int (*convert)(const struct rte_flow_item *item, int (*convert)(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data); struct mlx5_flow_data *data);
/** Size in bytes of the destination structure. */ /** Size in bytes of the destination structure. */
const unsigned int dst_sz; const unsigned int dst_sz;
/** List of possible following items. */ /** List of possible following items. */
@ -1118,6 +1124,11 @@ mlx5_flow_convert(struct rte_eth_dev *dev,
/* Third step. Conversion parse, fill the specifications. */ /* Third step. Conversion parse, fill the specifications. */
parser->inner = 0; parser->inner = 0;
for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) { for (; items->type != RTE_FLOW_ITEM_TYPE_END; ++items) {
struct mlx5_flow_data data = {
.parser = parser,
.error = error,
};
if (items->type == RTE_FLOW_ITEM_TYPE_VOID) if (items->type == RTE_FLOW_ITEM_TYPE_VOID)
continue; continue;
cur_item = &mlx5_flow_items[items->type]; cur_item = &mlx5_flow_items[items->type];
@ -1125,13 +1136,9 @@ mlx5_flow_convert(struct rte_eth_dev *dev,
(cur_item->default_mask ? (cur_item->default_mask ?
cur_item->default_mask : cur_item->default_mask :
cur_item->mask), cur_item->mask),
parser); &data);
if (ret) { if (ret)
rte_flow_error_set(error, rte_errno,
RTE_FLOW_ERROR_TYPE_ITEM,
items, "item not supported");
goto exit_free; goto exit_free;
}
} }
if (parser->mark) if (parser->mark)
mlx5_flow_create_flag_mark(parser, parser->mark_id); mlx5_flow_create_flag_mark(parser, parser->mark_id);
@ -1224,11 +1231,11 @@ mlx5_flow_create_copy(struct mlx5_flow_parse *parser, void *src,
static int static int
mlx5_flow_create_eth(const struct rte_flow_item *item, mlx5_flow_create_eth(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_eth *spec = item->spec; const struct rte_flow_item_eth *spec = item->spec;
const struct rte_flow_item_eth *mask = item->mask; const struct rte_flow_item_eth *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
struct ibv_flow_spec_eth eth = { struct ibv_flow_spec_eth eth = {
.type = parser->inner | IBV_FLOW_SPEC_ETH, .type = parser->inner | IBV_FLOW_SPEC_ETH,
@ -1276,11 +1283,11 @@ mlx5_flow_create_eth(const struct rte_flow_item *item,
static int static int
mlx5_flow_create_vlan(const struct rte_flow_item *item, mlx5_flow_create_vlan(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_vlan *spec = item->spec; const struct rte_flow_item_vlan *spec = item->spec;
const struct rte_flow_item_vlan *mask = item->mask; const struct rte_flow_item_vlan *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
struct ibv_flow_spec_eth *eth; struct ibv_flow_spec_eth *eth;
const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth); const unsigned int eth_size = sizeof(struct ibv_flow_spec_eth);
@ -1319,11 +1326,11 @@ mlx5_flow_create_vlan(const struct rte_flow_item *item,
static int static int
mlx5_flow_create_ipv4(const struct rte_flow_item *item, mlx5_flow_create_ipv4(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_ipv4 *spec = item->spec; const struct rte_flow_item_ipv4 *spec = item->spec;
const struct rte_flow_item_ipv4 *mask = item->mask; const struct rte_flow_item_ipv4 *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext); unsigned int ipv4_size = sizeof(struct ibv_flow_spec_ipv4_ext);
struct ibv_flow_spec_ipv4_ext ipv4 = { struct ibv_flow_spec_ipv4_ext ipv4 = {
.type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT, .type = parser->inner | IBV_FLOW_SPEC_IPV4_EXT,
@ -1374,11 +1381,11 @@ mlx5_flow_create_ipv4(const struct rte_flow_item *item,
static int static int
mlx5_flow_create_ipv6(const struct rte_flow_item *item, mlx5_flow_create_ipv6(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_ipv6 *spec = item->spec; const struct rte_flow_item_ipv6 *spec = item->spec;
const struct rte_flow_item_ipv6 *mask = item->mask; const struct rte_flow_item_ipv6 *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6); unsigned int ipv6_size = sizeof(struct ibv_flow_spec_ipv6);
struct ibv_flow_spec_ipv6 ipv6 = { struct ibv_flow_spec_ipv6 ipv6 = {
.type = parser->inner | IBV_FLOW_SPEC_IPV6, .type = parser->inner | IBV_FLOW_SPEC_IPV6,
@ -1449,11 +1456,11 @@ mlx5_flow_create_ipv6(const struct rte_flow_item *item,
static int static int
mlx5_flow_create_udp(const struct rte_flow_item *item, mlx5_flow_create_udp(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_udp *spec = item->spec; const struct rte_flow_item_udp *spec = item->spec;
const struct rte_flow_item_udp *mask = item->mask; const struct rte_flow_item_udp *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp); unsigned int udp_size = sizeof(struct ibv_flow_spec_tcp_udp);
struct ibv_flow_spec_tcp_udp udp = { struct ibv_flow_spec_tcp_udp udp = {
.type = parser->inner | IBV_FLOW_SPEC_UDP, .type = parser->inner | IBV_FLOW_SPEC_UDP,
@ -1498,11 +1505,11 @@ mlx5_flow_create_udp(const struct rte_flow_item *item,
static int static int
mlx5_flow_create_tcp(const struct rte_flow_item *item, mlx5_flow_create_tcp(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_tcp *spec = item->spec; const struct rte_flow_item_tcp *spec = item->spec;
const struct rte_flow_item_tcp *mask = item->mask; const struct rte_flow_item_tcp *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp); unsigned int tcp_size = sizeof(struct ibv_flow_spec_tcp_udp);
struct ibv_flow_spec_tcp_udp tcp = { struct ibv_flow_spec_tcp_udp tcp = {
.type = parser->inner | IBV_FLOW_SPEC_TCP, .type = parser->inner | IBV_FLOW_SPEC_TCP,
@ -1547,11 +1554,11 @@ mlx5_flow_create_tcp(const struct rte_flow_item *item,
static int static int
mlx5_flow_create_vxlan(const struct rte_flow_item *item, mlx5_flow_create_vxlan(const struct rte_flow_item *item,
const void *default_mask, const void *default_mask,
void *data) struct mlx5_flow_data *data)
{ {
const struct rte_flow_item_vxlan *spec = item->spec; const struct rte_flow_item_vxlan *spec = item->spec;
const struct rte_flow_item_vxlan *mask = item->mask; const struct rte_flow_item_vxlan *mask = item->mask;
struct mlx5_flow_parse *parser = (struct mlx5_flow_parse *)data; struct mlx5_flow_parse *parser = data->parser;
unsigned int size = sizeof(struct ibv_flow_spec_tunnel); unsigned int size = sizeof(struct ibv_flow_spec_tunnel);
struct ibv_flow_spec_tunnel vxlan = { struct ibv_flow_spec_tunnel vxlan = {
.type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL, .type = parser->inner | IBV_FLOW_SPEC_VXLAN_TUNNEL,
@ -1582,10 +1589,11 @@ mlx5_flow_create_vxlan(const struct rte_flow_item *item,
* before will also match this rule. * before will also match this rule.
* To avoid such situation, VNI 0 is currently refused. * To avoid such situation, VNI 0 is currently refused.
*/ */
if (!vxlan.val.tunnel_id) { if (!vxlan.val.tunnel_id)
rte_errno = EINVAL; return rte_flow_error_set(data->error, EINVAL,
return -rte_errno; RTE_FLOW_ERROR_TYPE_ITEM,
} item,
"VxLAN vni cannot be 0");
mlx5_flow_create_copy(parser, &vxlan, size); mlx5_flow_create_copy(parser, &vxlan, size);
return 0; return 0;
} }