return 0;
}
+/**
+ * Parse the rule to see if it is a flex byte rule.
+ * And get the flex byte filter info BTW.
+ * pattern:
+ * The first not void item must be RAW.
+ * The second not void item can be RAW or END.
+ * The third not void item can be RAW or END.
+ * The last 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
+ * RAW relative 0 0x1
+ * offset 0 0xFFFFFFFF
+ * pattern {0x08, 0x06} {0xFF, 0xFF}
+ * RAW relative 1 0x1
+ * offset 100 0xFFFFFFFF
+ * pattern {0x11, 0x22, 0x33} {0xFF, 0xFF, 0xFF}
+ * END
+ * other members in mask and spec should set to 0x00.
+ * item->last should be NULL.
+ */
+static int
+cons_parse_flex_filter(const struct rte_flow_attr *attr,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_eth_flex_filter *filter,
+ struct rte_flow_error *error)
+{
+ const struct rte_flow_item *item;
+ const struct rte_flow_action *act;
+ const struct rte_flow_item_raw *raw_spec;
+ const struct rte_flow_item_raw *raw_mask;
+ const struct rte_flow_action_queue *act_q;
+ uint32_t index, i, offset, total_offset = 0;
+ int32_t shift;
+
+ 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;
+
+item_loop:
+
+ /* the first not void item should be RAW */
+ NEXT_ITEM_OF_PATTERN(item, pattern, index);
+ if (item->type != RTE_FLOW_ITEM_TYPE_RAW) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by flex 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;
+ }
+
+ raw_spec = (const struct rte_flow_item_raw *)item->spec;
+ raw_mask = (const struct rte_flow_item_raw *)item->mask;
+
+ if (!raw_mask->length ||
+ !raw_mask->relative) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by flex filter");
+ return -rte_errno;
+ }
+
+ if (raw_mask->offset)
+ offset = raw_spec->offset;
+ else
+ offset = 0;
+
+ for (index = 0; index < raw_spec->length; index++) {
+ if (raw_mask->pattern[index] != 0xFF) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by flex filter");
+ return -rte_errno;
+ }
+ }
+
+ if ((raw_spec->length + offset + total_offset) >
+ RTE_FLEX_FILTER_MAXLEN) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by flex filter");
+ return -rte_errno;
+ }
+
+ if (raw_spec->relative == 0) {
+ for (index = 0; index < raw_spec->length; index++)
+ filter->bytes[index] = raw_spec->pattern[index];
+ index = offset / CHAR_BIT;
+ } else {
+ for (index = 0; index < raw_spec->length; index++)
+ filter->bytes[total_offset + index] =
+ raw_spec->pattern[index];
+ index = (total_offset + offset) / CHAR_BIT;
+ }
+
+ i = 0;
+
+ for (shift = offset % CHAR_BIT; shift < CHAR_BIT; shift++) {
+ filter->mask[index] |= (0x80 >> shift);
+ i++;
+ if (i == raw_spec->length)
+ break;
+ if (shift == (CHAR_BIT - 1)) {
+ index++;
+ shift = -1;
+ }
+ }
+
+ total_offset += offset + raw_spec->length;
+
+ /* check if the next not void item is RAW */
+ index++;
+ NEXT_ITEM_OF_PATTERN(item, pattern, index);
+ if (item->type != RTE_FLOW_ITEM_TYPE_RAW &&
+ item->type != RTE_FLOW_ITEM_TYPE_END) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by flex filter");
+ return -rte_errno;
+ }
+
+ /* go back to parser */
+ if (item->type == RTE_FLOW_ITEM_TYPE_RAW) {
+ /* if the item is RAW, the content should be parse */
+ goto item_loop;
+ }
+
+ filter->len = RTE_ALIGN(total_offset, 8);
+
+ /* parse action */
+ index = 0;
+
+ /* check if the first not void action is QUEUE. */
+ NEXT_ITEM_OF_ACTION(act, actions, index);
+ if (act->type != RTE_FLOW_ACTION_TYPE_QUEUE) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ act, "Not supported action.");
+ return -rte_errno;
+ }
+
+ act_q = (const struct rte_flow_action_queue *)act->conf;
+ filter->queue = act_q->index;
+
+ /* check if the next not void item is END */
+ index++;
+ NEXT_ITEM_OF_ACTION(act, actions, index);
+ if (act->type != RTE_FLOW_ACTION_TYPE_END) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ 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) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
+ attr, "Only support ingress.");
+ return -rte_errno;
+ }
+
+ /* not supported */
+ if (attr->egress) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
+ attr, "Not support egress.");
+ return -rte_errno;
+ }
+
+ if (attr->priority > 0xFFFF) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
+ attr, "Error priority.");
+ return -rte_errno;
+ }
+
+ filter->priority = (uint16_t)attr->priority;
+
+ return 0;
+}
+
+static int
+igb_parse_flex_filter(struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attr,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_eth_flex_filter *filter,
+ struct rte_flow_error *error)
+{
+ struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+ int ret;
+
+ MAC_TYPE_FILTER_SUP_EXT(hw->mac.type);
+
+ ret = cons_parse_flex_filter(attr, pattern,
+ actions, filter, error);
+
+ if (filter->queue >= IGB_MAX_RX_QUEUE_NUM) {
+ memset(filter, 0, sizeof(struct rte_eth_flex_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "queue number not supported by flex filter");
+ return -rte_errno;
+ }
+
+ if (filter->len == 0 || filter->len > E1000_MAX_FLEX_FILTER_LEN ||
+ filter->len % sizeof(uint64_t) != 0) {
+ PMD_DRV_LOG(ERR, "filter's length is out of range");
+ return -EINVAL;
+ }
+
+ if (filter->priority > E1000_MAX_FLEX_FILTER_PRI) {
+ PMD_DRV_LOG(ERR, "filter's priority is out of range");
+ return -EINVAL;
+ }
+
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
/**
* Check if the flow rule is supported by igb.
* It only checkes the format. Don't guarantee the rule can be programmed into
struct rte_eth_ntuple_filter ntuple_filter;
struct rte_eth_ethertype_filter ethertype_filter;
struct rte_eth_syn_filter syn_filter;
+ struct rte_eth_flex_filter flex_filter;
int ret;
memset(&ntuple_filter, 0, sizeof(struct rte_eth_ntuple_filter));
if (!ret)
return 0;
+ memset(&flex_filter, 0, sizeof(struct rte_eth_flex_filter));
+ ret = igb_parse_flex_filter(dev, attr, pattern,
+ actions, &flex_filter, error);
+
return ret;
}
git.droids-corp.org / dpdk.git / blobdiff