};
/* Forward declarations */
+static enic_copy_item_fn enic_copy_item_ipv4_v1;
+static enic_copy_item_fn enic_copy_item_udp_v1;
+static enic_copy_item_fn enic_copy_item_tcp_v1;
static enic_copy_item_fn enic_copy_item_eth_v2;
static enic_copy_item_fn enic_copy_item_vlan_v2;
static enic_copy_item_fn enic_copy_item_ipv4_v2;
static copy_action_fn enic_copy_action_v1;
static copy_action_fn enic_copy_action_v2;
+/**
+ * Legacy NICs or NICs with outdated firmware. Only 5-tuple perfect match
+ * is supported.
+ */
+static const struct enic_items enic_items_v1[] = {
+ [RTE_FLOW_ITEM_TYPE_IPV4] = {
+ .copy_item = enic_copy_item_ipv4_v1,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_UDP] = {
+ .copy_item = enic_copy_item_udp_v1,
+ .valid_start_item = 0,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_TCP] = {
+ .copy_item = enic_copy_item_tcp_v1,
+ .valid_start_item = 0,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+};
+
/**
* NICs have Advanced Filters capability but they are disabled. This means
* that layer 3 must be specified.
/** Filtering capabilities indexed this NICs supported filter type. */
static const struct enic_filter_cap enic_filter_cap[] = {
+ [FILTER_IPV4_5TUPLE] = {
+ .item_info = enic_items_v1,
+ },
[FILTER_USNIC_IP] = {
.item_info = enic_items_v2,
},
.copy_fn = enic_copy_action_v2,
},
};
+
+static int
+mask_exact_match(const u8 *supported, const u8 *supplied,
+ unsigned int size)
+{
+ unsigned int i;
+ for (i = 0; i < size; i++) {
+ if (supported[i] != supplied[i])
+ return 0;
+ }
+ return 1;
+}
+
+/**
+ * Copy IPv4 item into version 1 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Should always be 0 for version 1.
+ */
+static int
+enic_copy_item_ipv4_v1(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_ipv4 *spec = item->spec;
+ const struct rte_flow_item_ipv4 *mask = item->mask;
+ struct filter_ipv4_5tuple *enic_5tup = &enic_filter->u.ipv4;
+ struct ipv4_hdr supported_mask = {
+ .src_addr = 0xffffffff,
+ .dst_addr = 0xffffffff,
+ };
+
+ FLOW_TRACE();
+
+ if (*inner_ofst)
+ return ENOTSUP;
+
+ if (!mask)
+ mask = &rte_flow_item_ipv4_mask;
+
+ /* This is an exact match filter, both fields must be set */
+ if (!spec || !spec->hdr.src_addr || !spec->hdr.dst_addr) {
+ FLOW_LOG(ERR, "IPv4 exact match src/dst addr");
+ return ENOTSUP;
+ }
+
+ /* check that the suppied mask exactly matches capabilty */
+ if (!mask_exact_match((const u8 *)&supported_mask,
+ (const u8 *)item->mask, sizeof(*mask))) {
+ FLOW_LOG(ERR, "IPv4 exact match mask");
+ return ENOTSUP;
+ }
+
+ enic_filter->u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
+ enic_5tup->src_addr = spec->hdr.src_addr;
+ enic_5tup->dst_addr = spec->hdr.dst_addr;
+
+ return 0;
+}
+
+/**
+ * Copy UDP item into version 1 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Should always be 0 for version 1.
+ */
+static int
+enic_copy_item_udp_v1(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_udp *spec = item->spec;
+ const struct rte_flow_item_udp *mask = item->mask;
+ struct filter_ipv4_5tuple *enic_5tup = &enic_filter->u.ipv4;
+ struct udp_hdr supported_mask = {
+ .src_port = 0xffff,
+ .dst_port = 0xffff,
+ };
+
+ FLOW_TRACE();
+
+ if (*inner_ofst)
+ return ENOTSUP;
+
+ if (!mask)
+ mask = &rte_flow_item_udp_mask;
+
+ /* This is an exact match filter, both ports must be set */
+ if (!spec || !spec->hdr.src_port || !spec->hdr.dst_port) {
+ FLOW_LOG(ERR, "UDP exact match src/dst addr");
+ return ENOTSUP;
+ }
+
+ /* check that the suppied mask exactly matches capabilty */
+ if (!mask_exact_match((const u8 *)&supported_mask,
+ (const u8 *)item->mask, sizeof(*mask))) {
+ FLOW_LOG(ERR, "UDP exact match mask");
+ return ENOTSUP;
+ }
+
+ enic_filter->u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
+ enic_5tup->src_port = spec->hdr.src_port;
+ enic_5tup->dst_port = spec->hdr.dst_port;
+ enic_5tup->protocol = PROTO_UDP;
+
+ return 0;
+}
+
+/**
+ * Copy TCP item into version 1 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Should always be 0 for version 1.
+ */
+static int
+enic_copy_item_tcp_v1(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_tcp *spec = item->spec;
+ const struct rte_flow_item_tcp *mask = item->mask;
+ struct filter_ipv4_5tuple *enic_5tup = &enic_filter->u.ipv4;
+ struct tcp_hdr supported_mask = {
+ .src_port = 0xffff,
+ .dst_port = 0xffff,
+ };
+
+ FLOW_TRACE();
+
+ if (*inner_ofst)
+ return ENOTSUP;
+
+ if (!mask)
+ mask = &rte_flow_item_tcp_mask;
+
+ /* This is an exact match filter, both ports must be set */
+ if (!spec || !spec->hdr.src_port || !spec->hdr.dst_port) {
+ FLOW_LOG(ERR, "TCPIPv4 exact match src/dst addr");
+ return ENOTSUP;
+ }
+
+ /* check that the suppied mask exactly matches capabilty */
+ if (!mask_exact_match((const u8 *)&supported_mask,
+ (const u8 *)item->mask, sizeof(*mask))) {
+ FLOW_LOG(ERR, "TCP exact match mask");
+ return ENOTSUP;
+ }
+
+ enic_filter->u.ipv4.flags = FILTER_FIELDS_IPV4_5TUPLE;
+ enic_5tup->src_port = spec->hdr.src_port;
+ enic_5tup->dst_port = spec->hdr.dst_port;
+ enic_5tup->protocol = PROTO_TCP;
+
+ return 0;
+}
+
/**
* Copy ETH item into version 2 NIC filter.
*
static const struct enic_filter_cap *
enic_get_filter_cap(struct enic *enic)
{
- /* FIXME: only support advanced filters for now */
- if ((enic->flow_filter_mode != FILTER_DPDK_1) &&
- (enic->flow_filter_mode != FILTER_USNIC_IP))
- return (const struct enic_filter_cap *)NULL;
-
if (enic->flow_filter_mode)
return &enic_filter_cap[enic->flow_filter_mode];
git.droids-corp.org / dpdk.git / blobdiff