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net/ixgbe: parse ethertype filter

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check if the rule is a ethertype rule, and get the ethertype info.

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>
Acked-by: Wei Dai <wei.dai@intel.com>
This commit is contained in:
Wei Zhao 2017-01-13 16:13:06 +08:00 committed by Ferruh Yigit
parent 672be56d76
commit eb3539fc85
1 changed files with 284 additions and 0 deletions
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284
drivers/net/ixgbe/ixgbe_flow.c
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@ -90,6 +90,18 @@ ixgbe_parse_ntuple_filter(const struct rte_flow_attr *attr,
struct rte_eth_ntuple_filter *filter,
struct rte_flow_error *error);
static int
cons_parse_ethertype_filter(const struct rte_flow_attr *attr,
const struct rte_flow_item *pattern,
const struct rte_flow_action *actions,
struct rte_eth_ethertype_filter *filter,
struct rte_flow_error *error);
static int
ixgbe_parse_ethertype_filter(const struct rte_flow_attr *attr,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct rte_eth_ethertype_filter *filter,
struct rte_flow_error *error);
static int
ixgbe_flow_validate(__rte_unused struct rte_eth_dev *dev,
const struct rte_flow_attr *attr,
const struct rte_flow_item pattern[],
@ -490,6 +502,271 @@ ixgbe_parse_ntuple_filter(const struct rte_flow_attr *attr,
return 0;
}
/**
* Parse the rule to see if it is a ethertype rule.
* And get the ethertype filter info BTW.
* pattern:
* The first not void item can be ETH.
* The next not void item must be END.
* action:
* The first not void action should be QUEUE.
* The next not void action should be END.
* pattern example:
* ITEM Spec Mask
* ETH type 0x0807 0xFFFF
* END
* other members in mask and spec should set to 0x00.
* item->last should be NULL.
*/
static int
cons_parse_ethertype_filter(const struct rte_flow_attr *attr,
const struct rte_flow_item *pattern,
const struct rte_flow_action *actions,
struct rte_eth_ethertype_filter *filter,
struct rte_flow_error *error)
{
const struct rte_flow_item *item;
const struct rte_flow_action *act;
const struct rte_flow_item_eth *eth_spec;
const struct rte_flow_item_eth *eth_mask;
const struct rte_flow_action_queue *act_q;
uint32_t index;
if (!pattern) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM_NUM,
NULL, "NULL pattern.");
return -rte_errno;
}
if (!actions) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION_NUM,
NULL, "NULL action.");
return -rte_errno;
}
if (!attr) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR,
NULL, "NULL attribute.");
return -rte_errno;
}
/* Parse pattern */
index = 0;
/* The first non-void item should be MAC. */
item = pattern + index;
while (item->type == RTE_FLOW_ITEM_TYPE_VOID) {
index++;
item = pattern + index;
}
if (item->type != RTE_FLOW_ITEM_TYPE_ETH) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Not supported by ethertype filter");
return -rte_errno;
}
/*Not supported last point for range*/
if (item->last) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
item, "Not supported last point for range");
return -rte_errno;
}
/* Get the MAC info. */
if (!item->spec || !item->mask) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Not supported by ethertype filter");
return -rte_errno;
}
eth_spec = (const struct rte_flow_item_eth *)item->spec;
eth_mask = (const struct rte_flow_item_eth *)item->mask;
/* Mask bits of source MAC address must be full of 0.
* Mask bits of destination MAC address must be full
* of 1 or full of 0.
*/
if (!is_zero_ether_addr(&eth_mask->src) ||
(!is_zero_ether_addr(&eth_mask->dst) &&
!is_broadcast_ether_addr(&eth_mask->dst))) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Invalid ether address mask");
return -rte_errno;
}
if ((eth_mask->type & UINT16_MAX) != UINT16_MAX) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Invalid ethertype mask");
return -rte_errno;
}
/* If mask bits of destination MAC address
* are full of 1, set RTE_ETHTYPE_FLAGS_MAC.
*/
if (is_broadcast_ether_addr(&eth_mask->dst)) {
filter->mac_addr = eth_spec->dst;
filter->flags |= RTE_ETHTYPE_FLAGS_MAC;
} else {
filter->flags &= ~RTE_ETHTYPE_FLAGS_MAC;
}
filter->ether_type = rte_be_to_cpu_16(eth_spec->type);
/* Check if the next non-void item is END. */
index++;
item = pattern + index;
while (item->type == RTE_FLOW_ITEM_TYPE_VOID) {
index++;
item = pattern + index;
}
if (item->type != RTE_FLOW_ITEM_TYPE_END) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Not supported by ethertype filter.");
return -rte_errno;
}
/* Parse action */
index = 0;
/* Check if the first non-void action is QUEUE or DROP. */
act = actions + index;
while (act->type == RTE_FLOW_ACTION_TYPE_VOID) {
index++;
act = actions + index;
}
if (act->type != RTE_FLOW_ACTION_TYPE_QUEUE &&
act->type != RTE_FLOW_ACTION_TYPE_DROP) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
act, "Not supported action.");
return -rte_errno;
}
if (act->type == RTE_FLOW_ACTION_TYPE_QUEUE) {
act_q = (const struct rte_flow_action_queue *)act->conf;
filter->queue = act_q->index;
} else {
filter->flags |= RTE_ETHTYPE_FLAGS_DROP;
}
/* Check if the next non-void item is END */
index++;
act = actions + index;
while (act->type == RTE_FLOW_ACTION_TYPE_VOID) {
index++;
act = actions + index;
}
if (act->type != RTE_FLOW_ACTION_TYPE_END) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ACTION,
act, "Not supported action.");
return -rte_errno;
}
/* Parse attr */
/* Must be input direction */
if (!attr->ingress) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
attr, "Only support ingress.");
return -rte_errno;
}
/* Not supported */
if (attr->egress) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
attr, "Not support egress.");
return -rte_errno;
}
/* Not supported */
if (attr->priority) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
attr, "Not support priority.");
return -rte_errno;
}
/* Not supported */
if (attr->group) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
attr, "Not support group.");
return -rte_errno;
}
return 0;
}
static int
ixgbe_parse_ethertype_filter(const struct rte_flow_attr *attr,
const struct rte_flow_item pattern[],
const struct rte_flow_action actions[],
struct rte_eth_ethertype_filter *filter,
struct rte_flow_error *error)
{
int ret;
ret = cons_parse_ethertype_filter(attr, pattern,
actions, filter, error);
if (ret)
return ret;
/* Ixgbe doesn't support MAC address. */
if (filter->flags & RTE_ETHTYPE_FLAGS_MAC) {
memset(filter, 0, sizeof(struct rte_eth_ethertype_filter));
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "Not supported by ethertype filter");
return -rte_errno;
}
if (filter->queue >= IXGBE_MAX_RX_QUEUE_NUM) {
memset(filter, 0, sizeof(struct rte_eth_ethertype_filter));
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "queue index much too big");
return -rte_errno;
}
if (filter->ether_type == ETHER_TYPE_IPv4 ||
filter->ether_type == ETHER_TYPE_IPv6) {
memset(filter, 0, sizeof(struct rte_eth_ethertype_filter));
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "IPv4/IPv6 not supported by ethertype filter");
return -rte_errno;
}
if (filter->flags & RTE_ETHTYPE_FLAGS_MAC) {
memset(filter, 0, sizeof(struct rte_eth_ethertype_filter));
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "mac compare is unsupported");
return -rte_errno;
}
if (filter->flags & RTE_ETHTYPE_FLAGS_DROP) {
memset(filter, 0, sizeof(struct rte_eth_ethertype_filter));
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
NULL, "drop option is unsupported");
return -rte_errno;
}
return 0;
}
/**
* Check if the flow rule is supported by ixgbe.
* It only checkes the format. Don't guarantee the rule can be programmed into
@ -503,6 +780,7 @@ ixgbe_flow_validate(__rte_unused struct rte_eth_dev *dev,
struct rte_flow_error *error)
{
struct rte_eth_ntuple_filter ntuple_filter;
struct rte_eth_ethertype_filter ethertype_filter;
int ret;
memset(&ntuple_filter, 0, sizeof(struct rte_eth_ntuple_filter));
@ -511,6 +789,12 @@ ixgbe_flow_validate(__rte_unused struct rte_eth_dev *dev,
if (!ret)
return 0;
memset(&ethertype_filter, 0, sizeof(struct rte_eth_ethertype_filter));
ret = ixgbe_parse_ethertype_filter(attr, pattern,
actions, &ethertype_filter, error);
if (!ret)
return 0;
return ret;
}