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-rw-r--r--src/spdk/dpdk/drivers/net/enic/enic_flow.c1573
1 files changed, 1573 insertions, 0 deletions
diff --git a/src/spdk/dpdk/drivers/net/enic/enic_flow.c b/src/spdk/dpdk/drivers/net/enic/enic_flow.c
new file mode 100644
index 00000000..0cf04aef
--- /dev/null
+++ b/src/spdk/dpdk/drivers/net/enic/enic_flow.c
@@ -0,0 +1,1573 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2008-2017 Cisco Systems, Inc. All rights reserved.
+ */
+
+#include <errno.h>
+#include <stdint.h>
+#include <rte_log.h>
+#include <rte_ethdev_driver.h>
+#include <rte_flow_driver.h>
+#include <rte_ether.h>
+#include <rte_ip.h>
+#include <rte_udp.h>
+
+#include "enic_compat.h"
+#include "enic.h"
+#include "vnic_dev.h"
+#include "vnic_nic.h"
+
+#define FLOW_TRACE() \
+ rte_log(RTE_LOG_DEBUG, enicpmd_logtype_flow, \
+ "%s()\n", __func__)
+#define FLOW_LOG(level, fmt, args...) \
+ rte_log(RTE_LOG_ ## level, enicpmd_logtype_flow, \
+ fmt "\n", ##args)
+
+/** Info about how to copy items into enic filters. */
+struct enic_items {
+ /** Function for copying and validating an item. */
+ int (*copy_item)(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst);
+ /** List of valid previous items. */
+ const enum rte_flow_item_type * const prev_items;
+ /** True if it's OK for this item to be the first item. For some NIC
+ * versions, it's invalid to start the stack above layer 3.
+ */
+ const u8 valid_start_item;
+};
+
+/** Filtering capabilities for various NIC and firmware versions. */
+struct enic_filter_cap {
+ /** list of valid items and their handlers and attributes. */
+ const struct enic_items *item_info;
+};
+
+/* functions for copying flow actions into enic actions */
+typedef int (copy_action_fn)(const struct rte_flow_action actions[],
+ struct filter_action_v2 *enic_action);
+
+/* functions for copying items into enic filters */
+typedef int(enic_copy_item_fn)(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst);
+
+/** Action capabilities for various NICs. */
+struct enic_action_cap {
+ /** list of valid actions */
+ const enum rte_flow_action_type *actions;
+ /** copy function for a particular NIC */
+ int (*copy_fn)(const struct rte_flow_action actions[],
+ struct filter_action_v2 *enic_action);
+};
+
+/* 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 enic_copy_item_fn enic_copy_item_ipv6_v2;
+static enic_copy_item_fn enic_copy_item_udp_v2;
+static enic_copy_item_fn enic_copy_item_tcp_v2;
+static enic_copy_item_fn enic_copy_item_sctp_v2;
+static enic_copy_item_fn enic_copy_item_sctp_v2;
+static enic_copy_item_fn enic_copy_item_vxlan_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.
+ */
+static const struct enic_items enic_items_v2[] = {
+ [RTE_FLOW_ITEM_TYPE_ETH] = {
+ .copy_item = enic_copy_item_eth_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_VXLAN,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_VLAN] = {
+ .copy_item = enic_copy_item_vlan_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_IPV4] = {
+ .copy_item = enic_copy_item_ipv4_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_VLAN,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_IPV6] = {
+ .copy_item = enic_copy_item_ipv6_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_VLAN,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_UDP] = {
+ .copy_item = enic_copy_item_udp_v2,
+ .valid_start_item = 0,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_TCP] = {
+ .copy_item = enic_copy_item_tcp_v2,
+ .valid_start_item = 0,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_SCTP] = {
+ .copy_item = enic_copy_item_sctp_v2,
+ .valid_start_item = 0,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_VXLAN] = {
+ .copy_item = enic_copy_item_vxlan_v2,
+ .valid_start_item = 0,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_UDP,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+};
+
+/** NICs with Advanced filters enabled */
+static const struct enic_items enic_items_v3[] = {
+ [RTE_FLOW_ITEM_TYPE_ETH] = {
+ .copy_item = enic_copy_item_eth_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_VXLAN,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_VLAN] = {
+ .copy_item = enic_copy_item_vlan_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_IPV4] = {
+ .copy_item = enic_copy_item_ipv4_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_VLAN,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_IPV6] = {
+ .copy_item = enic_copy_item_ipv6_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_VLAN,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_UDP] = {
+ .copy_item = enic_copy_item_udp_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_TCP] = {
+ .copy_item = enic_copy_item_tcp_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_SCTP] = {
+ .copy_item = enic_copy_item_sctp_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_IPV6,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+ [RTE_FLOW_ITEM_TYPE_VXLAN] = {
+ .copy_item = enic_copy_item_vxlan_v2,
+ .valid_start_item = 1,
+ .prev_items = (const enum rte_flow_item_type[]) {
+ RTE_FLOW_ITEM_TYPE_UDP,
+ RTE_FLOW_ITEM_TYPE_END,
+ },
+ },
+};
+
+/** 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,
+ },
+ [FILTER_DPDK_1] = {
+ .item_info = enic_items_v3,
+ },
+};
+
+/** Supported actions for older NICs */
+static const enum rte_flow_action_type enic_supported_actions_v1[] = {
+ RTE_FLOW_ACTION_TYPE_QUEUE,
+ RTE_FLOW_ACTION_TYPE_END,
+};
+
+/** Supported actions for newer NICs */
+static const enum rte_flow_action_type enic_supported_actions_v2_id[] = {
+ RTE_FLOW_ACTION_TYPE_QUEUE,
+ RTE_FLOW_ACTION_TYPE_MARK,
+ RTE_FLOW_ACTION_TYPE_FLAG,
+ RTE_FLOW_ACTION_TYPE_END,
+};
+
+static const enum rte_flow_action_type enic_supported_actions_v2_drop[] = {
+ RTE_FLOW_ACTION_TYPE_QUEUE,
+ RTE_FLOW_ACTION_TYPE_MARK,
+ RTE_FLOW_ACTION_TYPE_FLAG,
+ RTE_FLOW_ACTION_TYPE_DROP,
+ RTE_FLOW_ACTION_TYPE_END,
+};
+
+/** Action capabilities indexed by NIC version information */
+static const struct enic_action_cap enic_action_cap[] = {
+ [FILTER_ACTION_RQ_STEERING_FLAG] = {
+ .actions = enic_supported_actions_v1,
+ .copy_fn = enic_copy_action_v1,
+ },
+ [FILTER_ACTION_FILTER_ID_FLAG] = {
+ .actions = enic_supported_actions_v2_id,
+ .copy_fn = enic_copy_action_v2,
+ },
+ [FILTER_ACTION_DROP_FLAG] = {
+ .actions = enic_supported_actions_v2_drop,
+ .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.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * If zero, this is an outer header. If non-zero, this is the offset into L5
+ * where the header begins.
+ */
+static int
+enic_copy_item_eth_v2(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ struct ether_hdr enic_spec;
+ struct ether_hdr enic_mask;
+ const struct rte_flow_item_eth *spec = item->spec;
+ const struct rte_flow_item_eth *mask = item->mask;
+ struct filter_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_eth_mask;
+
+ memcpy(enic_spec.d_addr.addr_bytes, spec->dst.addr_bytes,
+ ETHER_ADDR_LEN);
+ memcpy(enic_spec.s_addr.addr_bytes, spec->src.addr_bytes,
+ ETHER_ADDR_LEN);
+
+ memcpy(enic_mask.d_addr.addr_bytes, mask->dst.addr_bytes,
+ ETHER_ADDR_LEN);
+ memcpy(enic_mask.s_addr.addr_bytes, mask->src.addr_bytes,
+ ETHER_ADDR_LEN);
+ enic_spec.ether_type = spec->type;
+ enic_mask.ether_type = mask->type;
+
+ if (*inner_ofst == 0) {
+ /* outer header */
+ memcpy(gp->layer[FILTER_GENERIC_1_L2].mask, &enic_mask,
+ sizeof(struct ether_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L2].val, &enic_spec,
+ sizeof(struct ether_hdr));
+ } else {
+ /* inner header */
+ if ((*inner_ofst + sizeof(struct ether_hdr)) >
+ FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ /* Offset into L5 where inner Ethernet header goes */
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].mask[*inner_ofst],
+ &enic_mask, sizeof(struct ether_hdr));
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].val[*inner_ofst],
+ &enic_spec, sizeof(struct ether_hdr));
+ *inner_ofst += sizeof(struct ether_hdr);
+ }
+ return 0;
+}
+
+/**
+ * Copy VLAN item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * If zero, this is an outer header. If non-zero, this is the offset into L5
+ * where the header begins.
+ */
+static int
+enic_copy_item_vlan_v2(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_vlan *spec = item->spec;
+ const struct rte_flow_item_vlan *mask = item->mask;
+ struct filter_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_vlan_mask;
+
+ if (*inner_ofst == 0) {
+ struct ether_hdr *eth_mask =
+ (void *)gp->layer[FILTER_GENERIC_1_L2].mask;
+ struct ether_hdr *eth_val =
+ (void *)gp->layer[FILTER_GENERIC_1_L2].val;
+
+ /* Outer TPID cannot be matched */
+ if (eth_mask->ether_type)
+ return ENOTSUP;
+ eth_mask->ether_type = mask->inner_type;
+ eth_val->ether_type = spec->inner_type;
+
+ /* Outer header. Use the vlan mask/val fields */
+ gp->mask_vlan = mask->tci;
+ gp->val_vlan = spec->tci;
+ } else {
+ /* Inner header. Mask/Val start at *inner_ofst into L5 */
+ if ((*inner_ofst + sizeof(struct vlan_hdr)) >
+ FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].mask[*inner_ofst],
+ mask, sizeof(struct vlan_hdr));
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].val[*inner_ofst],
+ spec, sizeof(struct vlan_hdr));
+ *inner_ofst += sizeof(struct vlan_hdr);
+ }
+ return 0;
+}
+
+/**
+ * Copy IPv4 item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Must be 0. Don't support inner IPv4 filtering.
+ */
+static int
+enic_copy_item_ipv4_v2(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_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ if (*inner_ofst == 0) {
+ /* Match IPv4 */
+ gp->mask_flags |= FILTER_GENERIC_1_IPV4;
+ gp->val_flags |= FILTER_GENERIC_1_IPV4;
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_ipv4_mask;
+
+ memcpy(gp->layer[FILTER_GENERIC_1_L3].mask, &mask->hdr,
+ sizeof(struct ipv4_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L3].val, &spec->hdr,
+ sizeof(struct ipv4_hdr));
+ } else {
+ /* Inner IPv4 header. Mask/Val start at *inner_ofst into L5 */
+ if ((*inner_ofst + sizeof(struct ipv4_hdr)) >
+ FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].mask[*inner_ofst],
+ mask, sizeof(struct ipv4_hdr));
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].val[*inner_ofst],
+ spec, sizeof(struct ipv4_hdr));
+ *inner_ofst += sizeof(struct ipv4_hdr);
+ }
+ return 0;
+}
+
+/**
+ * Copy IPv6 item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Must be 0. Don't support inner IPv6 filtering.
+ */
+static int
+enic_copy_item_ipv6_v2(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_ipv6 *spec = item->spec;
+ const struct rte_flow_item_ipv6 *mask = item->mask;
+ struct filter_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ /* Match IPv6 */
+ gp->mask_flags |= FILTER_GENERIC_1_IPV6;
+ gp->val_flags |= FILTER_GENERIC_1_IPV6;
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_ipv6_mask;
+
+ if (*inner_ofst == 0) {
+ memcpy(gp->layer[FILTER_GENERIC_1_L3].mask, &mask->hdr,
+ sizeof(struct ipv6_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L3].val, &spec->hdr,
+ sizeof(struct ipv6_hdr));
+ } else {
+ /* Inner IPv6 header. Mask/Val start at *inner_ofst into L5 */
+ if ((*inner_ofst + sizeof(struct ipv6_hdr)) >
+ FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].mask[*inner_ofst],
+ mask, sizeof(struct ipv6_hdr));
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].val[*inner_ofst],
+ spec, sizeof(struct ipv6_hdr));
+ *inner_ofst += sizeof(struct ipv6_hdr);
+ }
+ return 0;
+}
+
+/**
+ * Copy UDP item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Must be 0. Don't support inner UDP filtering.
+ */
+static int
+enic_copy_item_udp_v2(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_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ /* Match UDP */
+ gp->mask_flags |= FILTER_GENERIC_1_UDP;
+ gp->val_flags |= FILTER_GENERIC_1_UDP;
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_udp_mask;
+
+ if (*inner_ofst == 0) {
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].mask, &mask->hdr,
+ sizeof(struct udp_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].val, &spec->hdr,
+ sizeof(struct udp_hdr));
+ } else {
+ /* Inner IPv6 header. Mask/Val start at *inner_ofst into L5 */
+ if ((*inner_ofst + sizeof(struct udp_hdr)) >
+ FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].mask[*inner_ofst],
+ mask, sizeof(struct udp_hdr));
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].val[*inner_ofst],
+ spec, sizeof(struct udp_hdr));
+ *inner_ofst += sizeof(struct udp_hdr);
+ }
+ return 0;
+}
+
+/**
+ * Copy TCP item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Must be 0. Don't support inner TCP filtering.
+ */
+static int
+enic_copy_item_tcp_v2(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_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ /* Match TCP */
+ gp->mask_flags |= FILTER_GENERIC_1_TCP;
+ gp->val_flags |= FILTER_GENERIC_1_TCP;
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ return ENOTSUP;
+
+ if (*inner_ofst == 0) {
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].mask, &mask->hdr,
+ sizeof(struct tcp_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].val, &spec->hdr,
+ sizeof(struct tcp_hdr));
+ } else {
+ /* Inner IPv6 header. Mask/Val start at *inner_ofst into L5 */
+ if ((*inner_ofst + sizeof(struct tcp_hdr)) >
+ FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].mask[*inner_ofst],
+ mask, sizeof(struct tcp_hdr));
+ memcpy(&gp->layer[FILTER_GENERIC_1_L5].val[*inner_ofst],
+ spec, sizeof(struct tcp_hdr));
+ *inner_ofst += sizeof(struct tcp_hdr);
+ }
+ return 0;
+}
+
+/**
+ * Copy SCTP item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Must be 0. Don't support inner SCTP filtering.
+ */
+static int
+enic_copy_item_sctp_v2(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_sctp *spec = item->spec;
+ const struct rte_flow_item_sctp *mask = item->mask;
+ struct filter_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ if (*inner_ofst)
+ return ENOTSUP;
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_sctp_mask;
+
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].mask, &mask->hdr,
+ sizeof(struct sctp_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].val, &spec->hdr,
+ sizeof(struct sctp_hdr));
+ return 0;
+}
+
+/**
+ * Copy UDP item into version 2 NIC filter.
+ *
+ * @param item[in]
+ * Item specification.
+ * @param enic_filter[out]
+ * Partially filled in NIC filter structure.
+ * @param inner_ofst[in]
+ * Must be 0. VxLAN headers always start at the beginning of L5.
+ */
+static int
+enic_copy_item_vxlan_v2(const struct rte_flow_item *item,
+ struct filter_v2 *enic_filter, u8 *inner_ofst)
+{
+ const struct rte_flow_item_vxlan *spec = item->spec;
+ const struct rte_flow_item_vxlan *mask = item->mask;
+ struct filter_generic_1 *gp = &enic_filter->u.generic_1;
+
+ FLOW_TRACE();
+
+ if (*inner_ofst)
+ return EINVAL;
+
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
+
+ if (!mask)
+ mask = &rte_flow_item_vxlan_mask;
+
+ memcpy(gp->layer[FILTER_GENERIC_1_L5].mask, mask,
+ sizeof(struct vxlan_hdr));
+ memcpy(gp->layer[FILTER_GENERIC_1_L5].val, spec,
+ sizeof(struct vxlan_hdr));
+
+ *inner_ofst = sizeof(struct vxlan_hdr);
+ return 0;
+}
+
+/**
+ * Return 1 if current item is valid on top of the previous one.
+ *
+ * @param prev_item[in]
+ * The item before this one in the pattern or RTE_FLOW_ITEM_TYPE_END if this
+ * is the first item.
+ * @param item_info[in]
+ * Info about this item, like valid previous items.
+ * @param is_first[in]
+ * True if this the first item in the pattern.
+ */
+static int
+item_stacking_valid(enum rte_flow_item_type prev_item,
+ const struct enic_items *item_info, u8 is_first_item)
+{
+ enum rte_flow_item_type const *allowed_items = item_info->prev_items;
+
+ FLOW_TRACE();
+
+ for (; *allowed_items != RTE_FLOW_ITEM_TYPE_END; allowed_items++) {
+ if (prev_item == *allowed_items)
+ return 1;
+ }
+
+ /* This is the first item in the stack. Check if that's cool */
+ if (is_first_item && item_info->valid_start_item)
+ return 1;
+
+ return 0;
+}
+
+/**
+ * Build the intenal enic filter structure from the provided pattern. The
+ * pattern is validated as the items are copied.
+ *
+ * @param pattern[in]
+ * @param items_info[in]
+ * Info about this NICs item support, like valid previous items.
+ * @param enic_filter[out]
+ * NIC specfilc filters derived from the pattern.
+ * @param error[out]
+ */
+static int
+enic_copy_filter(const struct rte_flow_item pattern[],
+ const struct enic_items *items_info,
+ struct filter_v2 *enic_filter,
+ struct rte_flow_error *error)
+{
+ int ret;
+ const struct rte_flow_item *item = pattern;
+ u8 inner_ofst = 0; /* If encapsulated, ofst into L5 */
+ enum rte_flow_item_type prev_item;
+ const struct enic_items *item_info;
+
+ u8 is_first_item = 1;
+
+ FLOW_TRACE();
+
+ prev_item = 0;
+
+ for (; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
+ /* Get info about how to validate and copy the item. If NULL
+ * is returned the nic does not support the item.
+ */
+ if (item->type == RTE_FLOW_ITEM_TYPE_VOID)
+ continue;
+
+ item_info = &items_info[item->type];
+
+ /* check to see if item stacking is valid */
+ if (!item_stacking_valid(prev_item, item_info, is_first_item))
+ goto stacking_error;
+
+ ret = item_info->copy_item(item, enic_filter, &inner_ofst);
+ if (ret)
+ goto item_not_supported;
+ prev_item = item->type;
+ is_first_item = 0;
+ }
+ return 0;
+
+item_not_supported:
+ rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "enic type error");
+ return -rte_errno;
+
+stacking_error:
+ rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "stacking error");
+ return -rte_errno;
+}
+
+/**
+ * Build the intenal version 1 NIC action structure from the provided pattern.
+ * The pattern is validated as the items are copied.
+ *
+ * @param actions[in]
+ * @param enic_action[out]
+ * NIC specfilc actions derived from the actions.
+ * @param error[out]
+ */
+static int
+enic_copy_action_v1(const struct rte_flow_action actions[],
+ struct filter_action_v2 *enic_action)
+{
+ enum { FATE = 1, };
+ uint32_t overlap = 0;
+
+ FLOW_TRACE();
+
+ for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+ if (actions->type == RTE_FLOW_ACTION_TYPE_VOID)
+ continue;
+
+ switch (actions->type) {
+ case RTE_FLOW_ACTION_TYPE_QUEUE: {
+ const struct rte_flow_action_queue *queue =
+ (const struct rte_flow_action_queue *)
+ actions->conf;
+
+ if (overlap & FATE)
+ return ENOTSUP;
+ overlap |= FATE;
+ enic_action->rq_idx =
+ enic_rte_rq_idx_to_sop_idx(queue->index);
+ break;
+ }
+ default:
+ RTE_ASSERT(0);
+ break;
+ }
+ }
+ if (!(overlap & FATE))
+ return ENOTSUP;
+ enic_action->type = FILTER_ACTION_RQ_STEERING;
+ return 0;
+}
+
+/**
+ * Build the intenal version 2 NIC action structure from the provided pattern.
+ * The pattern is validated as the items are copied.
+ *
+ * @param actions[in]
+ * @param enic_action[out]
+ * NIC specfilc actions derived from the actions.
+ * @param error[out]
+ */
+static int
+enic_copy_action_v2(const struct rte_flow_action actions[],
+ struct filter_action_v2 *enic_action)
+{
+ enum { FATE = 1, MARK = 2, };
+ uint32_t overlap = 0;
+
+ FLOW_TRACE();
+
+ for (; actions->type != RTE_FLOW_ACTION_TYPE_END; actions++) {
+ switch (actions->type) {
+ case RTE_FLOW_ACTION_TYPE_QUEUE: {
+ const struct rte_flow_action_queue *queue =
+ (const struct rte_flow_action_queue *)
+ actions->conf;
+
+ if (overlap & FATE)
+ return ENOTSUP;
+ overlap |= FATE;
+ enic_action->rq_idx =
+ enic_rte_rq_idx_to_sop_idx(queue->index);
+ enic_action->flags |= FILTER_ACTION_RQ_STEERING_FLAG;
+ break;
+ }
+ case RTE_FLOW_ACTION_TYPE_MARK: {
+ const struct rte_flow_action_mark *mark =
+ (const struct rte_flow_action_mark *)
+ actions->conf;
+
+ if (overlap & MARK)
+ return ENOTSUP;
+ overlap |= MARK;
+ /* ENIC_MAGIC_FILTER_ID is reserved and is the highest
+ * in the range of allows mark ids.
+ */
+ if (mark->id >= ENIC_MAGIC_FILTER_ID)
+ return EINVAL;
+ enic_action->filter_id = mark->id;
+ enic_action->flags |= FILTER_ACTION_FILTER_ID_FLAG;
+ break;
+ }
+ case RTE_FLOW_ACTION_TYPE_FLAG: {
+ if (overlap & MARK)
+ return ENOTSUP;
+ overlap |= MARK;
+ enic_action->filter_id = ENIC_MAGIC_FILTER_ID;
+ enic_action->flags |= FILTER_ACTION_FILTER_ID_FLAG;
+ break;
+ }
+ case RTE_FLOW_ACTION_TYPE_DROP: {
+ if (overlap & FATE)
+ return ENOTSUP;
+ overlap |= FATE;
+ enic_action->flags |= FILTER_ACTION_DROP_FLAG;
+ break;
+ }
+ case RTE_FLOW_ACTION_TYPE_VOID:
+ continue;
+ default:
+ RTE_ASSERT(0);
+ break;
+ }
+ }
+ if (!(overlap & FATE))
+ return ENOTSUP;
+ enic_action->type = FILTER_ACTION_V2;
+ return 0;
+}
+
+/** Check if the action is supported */
+static int
+enic_match_action(const struct rte_flow_action *action,
+ const enum rte_flow_action_type *supported_actions)
+{
+ for (; *supported_actions != RTE_FLOW_ACTION_TYPE_END;
+ supported_actions++) {
+ if (action->type == *supported_actions)
+ return 1;
+ }
+ return 0;
+}
+
+/** Get the NIC filter capabilties structure */
+static const struct enic_filter_cap *
+enic_get_filter_cap(struct enic *enic)
+{
+ if (enic->flow_filter_mode)
+ return &enic_filter_cap[enic->flow_filter_mode];
+
+ return NULL;
+}
+
+/** Get the actions for this NIC version. */
+static const struct enic_action_cap *
+enic_get_action_cap(struct enic *enic)
+{
+ const struct enic_action_cap *ea;
+ uint8_t actions;
+
+ actions = enic->filter_actions;
+ if (actions & FILTER_ACTION_DROP_FLAG)
+ ea = &enic_action_cap[FILTER_ACTION_DROP_FLAG];
+ else if (actions & FILTER_ACTION_FILTER_ID_FLAG)
+ ea = &enic_action_cap[FILTER_ACTION_FILTER_ID_FLAG];
+ else
+ ea = &enic_action_cap[FILTER_ACTION_RQ_STEERING_FLAG];
+ return ea;
+}
+
+/* Debug function to dump internal NIC action structure. */
+static void
+enic_dump_actions(const struct filter_action_v2 *ea)
+{
+ if (ea->type == FILTER_ACTION_RQ_STEERING) {
+ FLOW_LOG(INFO, "Action(V1), queue: %u\n", ea->rq_idx);
+ } else if (ea->type == FILTER_ACTION_V2) {
+ FLOW_LOG(INFO, "Actions(V2)\n");
+ if (ea->flags & FILTER_ACTION_RQ_STEERING_FLAG)
+ FLOW_LOG(INFO, "\tqueue: %u\n",
+ enic_sop_rq_idx_to_rte_idx(ea->rq_idx));
+ if (ea->flags & FILTER_ACTION_FILTER_ID_FLAG)
+ FLOW_LOG(INFO, "\tfilter_id: %u\n", ea->filter_id);
+ }
+}
+
+/* Debug function to dump internal NIC filter structure. */
+static void
+enic_dump_filter(const struct filter_v2 *filt)
+{
+ const struct filter_generic_1 *gp;
+ int i, j, mbyte;
+ char buf[128], *bp;
+ char ip4[16], ip6[16], udp[16], tcp[16], tcpudp[16], ip4csum[16];
+ char l4csum[16], ipfrag[16];
+
+ switch (filt->type) {
+ case FILTER_IPV4_5TUPLE:
+ FLOW_LOG(INFO, "FILTER_IPV4_5TUPLE\n");
+ break;
+ case FILTER_USNIC_IP:
+ case FILTER_DPDK_1:
+ /* FIXME: this should be a loop */
+ gp = &filt->u.generic_1;
+ FLOW_LOG(INFO, "Filter: vlan: 0x%04x, mask: 0x%04x\n",
+ gp->val_vlan, gp->mask_vlan);
+
+ if (gp->mask_flags & FILTER_GENERIC_1_IPV4)
+ sprintf(ip4, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_IPV4)
+ ? "ip4(y)" : "ip4(n)");
+ else
+ sprintf(ip4, "%s ", "ip4(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_IPV6)
+ sprintf(ip6, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_IPV4)
+ ? "ip6(y)" : "ip6(n)");
+ else
+ sprintf(ip6, "%s ", "ip6(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_UDP)
+ sprintf(udp, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_UDP)
+ ? "udp(y)" : "udp(n)");
+ else
+ sprintf(udp, "%s ", "udp(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_TCP)
+ sprintf(tcp, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_TCP)
+ ? "tcp(y)" : "tcp(n)");
+ else
+ sprintf(tcp, "%s ", "tcp(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_TCP_OR_UDP)
+ sprintf(tcpudp, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_TCP_OR_UDP)
+ ? "tcpudp(y)" : "tcpudp(n)");
+ else
+ sprintf(tcpudp, "%s ", "tcpudp(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_IP4SUM_OK)
+ sprintf(ip4csum, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_IP4SUM_OK)
+ ? "ip4csum(y)" : "ip4csum(n)");
+ else
+ sprintf(ip4csum, "%s ", "ip4csum(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_L4SUM_OK)
+ sprintf(l4csum, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_L4SUM_OK)
+ ? "l4csum(y)" : "l4csum(n)");
+ else
+ sprintf(l4csum, "%s ", "l4csum(x)");
+
+ if (gp->mask_flags & FILTER_GENERIC_1_IPFRAG)
+ sprintf(ipfrag, "%s ",
+ (gp->val_flags & FILTER_GENERIC_1_IPFRAG)
+ ? "ipfrag(y)" : "ipfrag(n)");
+ else
+ sprintf(ipfrag, "%s ", "ipfrag(x)");
+ FLOW_LOG(INFO, "\tFlags: %s%s%s%s%s%s%s%s\n", ip4, ip6, udp,
+ tcp, tcpudp, ip4csum, l4csum, ipfrag);
+
+ for (i = 0; i < FILTER_GENERIC_1_NUM_LAYERS; i++) {
+ mbyte = FILTER_GENERIC_1_KEY_LEN - 1;
+ while (mbyte && !gp->layer[i].mask[mbyte])
+ mbyte--;
+ if (mbyte == 0)
+ continue;
+
+ bp = buf;
+ for (j = 0; j <= mbyte; j++) {
+ sprintf(bp, "%02x",
+ gp->layer[i].mask[j]);
+ bp += 2;
+ }
+ *bp = '\0';
+ FLOW_LOG(INFO, "\tL%u mask: %s\n", i + 2, buf);
+ bp = buf;
+ for (j = 0; j <= mbyte; j++) {
+ sprintf(bp, "%02x",
+ gp->layer[i].val[j]);
+ bp += 2;
+ }
+ *bp = '\0';
+ FLOW_LOG(INFO, "\tL%u val: %s\n", i + 2, buf);
+ }
+ break;
+ default:
+ FLOW_LOG(INFO, "FILTER UNKNOWN\n");
+ break;
+ }
+}
+
+/* Debug function to dump internal NIC flow structures. */
+static void
+enic_dump_flow(const struct filter_action_v2 *ea, const struct filter_v2 *filt)
+{
+ enic_dump_filter(filt);
+ enic_dump_actions(ea);
+}
+
+
+/**
+ * Internal flow parse/validate function.
+ *
+ * @param dev[in]
+ * This device pointer.
+ * @param pattern[in]
+ * @param actions[in]
+ * @param error[out]
+ * @param enic_filter[out]
+ * Internal NIC filter structure pointer.
+ * @param enic_action[out]
+ * Internal NIC action structure pointer.
+ */
+static int
+enic_flow_parse(struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attrs,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_flow_error *error,
+ struct filter_v2 *enic_filter,
+ struct filter_action_v2 *enic_action)
+{
+ unsigned int ret = 0;
+ struct enic *enic = pmd_priv(dev);
+ const struct enic_filter_cap *enic_filter_cap;
+ const struct enic_action_cap *enic_action_cap;
+ const struct rte_flow_action *action;
+
+ FLOW_TRACE();
+
+ memset(enic_filter, 0, sizeof(*enic_filter));
+ memset(enic_action, 0, sizeof(*enic_action));
+
+ if (!pattern) {
+ rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_ITEM_NUM,
+ NULL, "No pattern specified");
+ return -rte_errno;
+ }
+
+ if (!actions) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION_NUM,
+ NULL, "No action specified");
+ return -rte_errno;
+ }
+
+ if (attrs) {
+ if (attrs->group) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_GROUP,
+ NULL,
+ "priority groups are not supported");
+ return -rte_errno;
+ } else if (attrs->priority) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_PRIORITY,
+ NULL,
+ "priorities are not supported");
+ return -rte_errno;
+ } else if (attrs->egress) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_EGRESS,
+ NULL,
+ "egress is not supported");
+ return -rte_errno;
+ } else if (attrs->transfer) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_TRANSFER,
+ NULL,
+ "transfer is not supported");
+ return -rte_errno;
+ } else if (!attrs->ingress) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ATTR_INGRESS,
+ NULL,
+ "only ingress is supported");
+ return -rte_errno;
+ }
+
+ } else {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ATTR,
+ NULL, "No attribute specified");
+ return -rte_errno;
+ }
+
+ /* Verify Actions. */
+ enic_action_cap = enic_get_action_cap(enic);
+ for (action = &actions[0]; action->type != RTE_FLOW_ACTION_TYPE_END;
+ action++) {
+ if (action->type == RTE_FLOW_ACTION_TYPE_VOID)
+ continue;
+ else if (!enic_match_action(action, enic_action_cap->actions))
+ break;
+ }
+ if (action->type != RTE_FLOW_ACTION_TYPE_END) {
+ rte_flow_error_set(error, EPERM, RTE_FLOW_ERROR_TYPE_ACTION,
+ action, "Invalid action.");
+ return -rte_errno;
+ }
+ ret = enic_action_cap->copy_fn(actions, enic_action);
+ if (ret) {
+ rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE,
+ NULL, "Unsupported action.");
+ return -rte_errno;
+ }
+
+ /* Verify Flow items. If copying the filter from flow format to enic
+ * format fails, the flow is not supported
+ */
+ enic_filter_cap = enic_get_filter_cap(enic);
+ if (enic_filter_cap == NULL) {
+ rte_flow_error_set(error, ENOTSUP, RTE_FLOW_ERROR_TYPE_HANDLE,
+ NULL, "Flow API not available");
+ return -rte_errno;
+ }
+ enic_filter->type = enic->flow_filter_mode;
+ ret = enic_copy_filter(pattern, enic_filter_cap->item_info,
+ enic_filter, error);
+ return ret;
+}
+
+/**
+ * Push filter/action to the NIC.
+ *
+ * @param enic[in]
+ * Device structure pointer.
+ * @param enic_filter[in]
+ * Internal NIC filter structure pointer.
+ * @param enic_action[in]
+ * Internal NIC action structure pointer.
+ * @param error[out]
+ */
+static struct rte_flow *
+enic_flow_add_filter(struct enic *enic, struct filter_v2 *enic_filter,
+ struct filter_action_v2 *enic_action,
+ struct rte_flow_error *error)
+{
+ struct rte_flow *flow;
+ int ret;
+ u16 entry;
+
+ FLOW_TRACE();
+
+ flow = rte_calloc(__func__, 1, sizeof(*flow), 0);
+ if (!flow) {
+ rte_flow_error_set(error, ENOMEM, RTE_FLOW_ERROR_TYPE_HANDLE,
+ NULL, "cannot allocate flow memory");
+ return NULL;
+ }
+
+ /* entry[in] is the queue id, entry[out] is the filter Id for delete */
+ entry = enic_action->rq_idx;
+ ret = vnic_dev_classifier(enic->vdev, CLSF_ADD, &entry, enic_filter,
+ enic_action);
+ if (!ret) {
+ flow->enic_filter_id = entry;
+ flow->enic_filter = *enic_filter;
+ } else {
+ rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
+ NULL, "vnic_dev_classifier error");
+ rte_free(flow);
+ return NULL;
+ }
+ return flow;
+}
+
+/**
+ * Remove filter/action from the NIC.
+ *
+ * @param enic[in]
+ * Device structure pointer.
+ * @param filter_id[in]
+ * Id of NIC filter.
+ * @param enic_action[in]
+ * Internal NIC action structure pointer.
+ * @param error[out]
+ */
+static int
+enic_flow_del_filter(struct enic *enic, u16 filter_id,
+ struct rte_flow_error *error)
+{
+ int ret;
+
+ FLOW_TRACE();
+
+ ret = vnic_dev_classifier(enic->vdev, CLSF_DEL, &filter_id, NULL, NULL);
+ if (!ret)
+ rte_flow_error_set(error, ret, RTE_FLOW_ERROR_TYPE_HANDLE,
+ NULL, "vnic_dev_classifier failed");
+ return ret;
+}
+
+/*
+ * The following functions are callbacks for Generic flow API.
+ */
+
+/**
+ * Validate a flow supported by the NIC.
+ *
+ * @see rte_flow_validate()
+ * @see rte_flow_ops
+ */
+static int
+enic_flow_validate(struct rte_eth_dev *dev, const struct rte_flow_attr *attrs,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_flow_error *error)
+{
+ struct filter_v2 enic_filter;
+ struct filter_action_v2 enic_action;
+ int ret;
+
+ FLOW_TRACE();
+
+ ret = enic_flow_parse(dev, attrs, pattern, actions, error,
+ &enic_filter, &enic_action);
+ if (!ret)
+ enic_dump_flow(&enic_action, &enic_filter);
+ return ret;
+}
+
+/**
+ * Create a flow supported by the NIC.
+ *
+ * @see rte_flow_create()
+ * @see rte_flow_ops
+ */
+static struct rte_flow *
+enic_flow_create(struct rte_eth_dev *dev,
+ const struct rte_flow_attr *attrs,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_flow_error *error)
+{
+ int ret;
+ struct filter_v2 enic_filter;
+ struct filter_action_v2 enic_action;
+ struct rte_flow *flow;
+ struct enic *enic = pmd_priv(dev);
+
+ FLOW_TRACE();
+
+ ret = enic_flow_parse(dev, attrs, pattern, actions, error, &enic_filter,
+ &enic_action);
+ if (ret < 0)
+ return NULL;
+
+ rte_spinlock_lock(&enic->flows_lock);
+ flow = enic_flow_add_filter(enic, &enic_filter, &enic_action,
+ error);
+ if (flow)
+ LIST_INSERT_HEAD(&enic->flows, flow, next);
+ rte_spinlock_unlock(&enic->flows_lock);
+
+ return flow;
+}
+
+/**
+ * Destroy a flow supported by the NIC.
+ *
+ * @see rte_flow_destroy()
+ * @see rte_flow_ops
+ */
+static int
+enic_flow_destroy(struct rte_eth_dev *dev, struct rte_flow *flow,
+ __rte_unused struct rte_flow_error *error)
+{
+ struct enic *enic = pmd_priv(dev);
+
+ FLOW_TRACE();
+
+ rte_spinlock_lock(&enic->flows_lock);
+ enic_flow_del_filter(enic, flow->enic_filter_id, error);
+ LIST_REMOVE(flow, next);
+ rte_spinlock_unlock(&enic->flows_lock);
+ return 0;
+}
+
+/**
+ * Flush all flows on the device.
+ *
+ * @see rte_flow_flush()
+ * @see rte_flow_ops
+ */
+static int
+enic_flow_flush(struct rte_eth_dev *dev, struct rte_flow_error *error)
+{
+ struct rte_flow *flow;
+ struct enic *enic = pmd_priv(dev);
+
+ FLOW_TRACE();
+
+ rte_spinlock_lock(&enic->flows_lock);
+
+ while (!LIST_EMPTY(&enic->flows)) {
+ flow = LIST_FIRST(&enic->flows);
+ enic_flow_del_filter(enic, flow->enic_filter_id, error);
+ LIST_REMOVE(flow, next);
+ }
+ rte_spinlock_unlock(&enic->flows_lock);
+ return 0;
+}
+
+/**
+ * Flow callback registration.
+ *
+ * @see rte_flow_ops
+ */
+const struct rte_flow_ops enic_flow_ops = {
+ .validate = enic_flow_validate,
+ .create = enic_flow_create,
+ .destroy = enic_flow_destroy,
+ .flush = enic_flow_flush,
+};
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 01:28:46 +0000