--- /dev/null
+/*-
+ * BSD LICENSE
+ *
+ * Copyright(c) 2010-2016 Intel Corporation. All rights reserved.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * * Neither the name of Intel Corporation nor the names of its
+ * contributors may be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <sys/queue.h>
+#include <stdio.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdarg.h>
+
+#include <rte_common.h>
+#include <rte_interrupts.h>
+#include <rte_byteorder.h>
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_pci.h>
+#include <rte_ether.h>
+#include <rte_ethdev.h>
+#include <rte_ethdev_pci.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_eal.h>
+#include <rte_atomic.h>
+#include <rte_malloc.h>
+#include <rte_dev.h>
+#include <rte_flow.h>
+#include <rte_flow_driver.h>
+
+#include "e1000_logs.h"
+#include "base/e1000_api.h"
+#include "e1000_ethdev.h"
+
+#define NEXT_ITEM_OF_PATTERN(item, pattern, index) \
+ do { \
+ item = (pattern) + (index); \
+ while (item->type == RTE_FLOW_ITEM_TYPE_VOID) { \
+ (index)++; \
+ item = (pattern) + (index); \
+ } \
+ } while (0)
+
+#define NEXT_ITEM_OF_ACTION(act, actions, index) \
+ do { \
+ act = (actions) + (index); \
+ while (act->type == RTE_FLOW_ACTION_TYPE_VOID) {\
+ (index)++; \
+ act = (actions) + (index); \
+ } \
+ } while (0)
+
+/**
+ * Please aware there's an asumption for all the parsers.
+ * rte_flow_item is using big endian, rte_flow_attr and
+ * rte_flow_action are using CPU order.
+ * Because the pattern is used to describe the packets,
+ * normally the packets should use network order.
+ */
+
+/**
+ * Parse the rule to see if it is a n-tuple rule.
+ * And get the n-tuple filter info BTW.
+ * pattern:
+ * The first not void item can be ETH or IPV4.
+ * The second not void item must be IPV4 if the first one is ETH.
+ * The third not void item must be UDP or TCP or SCTP
+ * 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 NULL NULL
+ * IPV4 src_addr 192.168.1.20 0xFFFFFFFF
+ * dst_addr 192.167.3.50 0xFFFFFFFF
+ * next_proto_id 17 0xFF
+ * UDP/TCP/ src_port 80 0xFFFF
+ * SCTP dst_port 80 0xFFFF
+ * END
+ * other members in mask and spec should set to 0x00.
+ * item->last should be NULL.
+ */
+static int
+cons_parse_ntuple_filter(const struct rte_flow_attr *attr,
+ const struct rte_flow_item pattern[],
+ const struct rte_flow_action actions[],
+ struct rte_eth_ntuple_filter *filter,
+ struct rte_flow_error *error)
+{
+ const struct rte_flow_item *item;
+ const struct rte_flow_action *act;
+ const struct rte_flow_item_ipv4 *ipv4_spec;
+ const struct rte_flow_item_ipv4 *ipv4_mask;
+ const struct rte_flow_item_tcp *tcp_spec;
+ const struct rte_flow_item_tcp *tcp_mask;
+ const struct rte_flow_item_udp *udp_spec;
+ const struct rte_flow_item_udp *udp_mask;
+ const struct rte_flow_item_sctp *sctp_spec;
+ const struct rte_flow_item_sctp *sctp_mask;
+ 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 not void item can be MAC or IPv4 */
+ NEXT_ITEM_OF_PATTERN(item, pattern, index);
+
+ if (item->type != RTE_FLOW_ITEM_TYPE_ETH &&
+ item->type != RTE_FLOW_ITEM_TYPE_IPV4) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+ /* Skip Ethernet */
+ if (item->type == RTE_FLOW_ITEM_TYPE_ETH) {
+ /*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;
+ }
+ /* if the first item is MAC, the content should be NULL */
+ if (item->spec || item->mask) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+ /* check if the next not void item is IPv4 */
+ index++;
+ NEXT_ITEM_OF_PATTERN(item, pattern, index);
+ if (item->type != RTE_FLOW_ITEM_TYPE_IPV4) {
+ rte_flow_error_set(error,
+ EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+ }
+
+ /* get the IPv4 info */
+ if (!item->spec || !item->mask) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Invalid ntuple mask");
+ 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;
+ }
+
+ ipv4_mask = (const struct rte_flow_item_ipv4 *)item->mask;
+ /**
+ * Only support src & dst addresses, protocol,
+ * others should be masked.
+ */
+
+ if (ipv4_mask->hdr.version_ihl ||
+ ipv4_mask->hdr.type_of_service ||
+ ipv4_mask->hdr.total_length ||
+ ipv4_mask->hdr.packet_id ||
+ ipv4_mask->hdr.fragment_offset ||
+ ipv4_mask->hdr.time_to_live ||
+ ipv4_mask->hdr.hdr_checksum) {
+ rte_flow_error_set(error,
+ EINVAL, RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ filter->dst_ip_mask = ipv4_mask->hdr.dst_addr;
+ filter->src_ip_mask = ipv4_mask->hdr.src_addr;
+ filter->proto_mask = ipv4_mask->hdr.next_proto_id;
+
+ ipv4_spec = (const struct rte_flow_item_ipv4 *)item->spec;
+ filter->dst_ip = ipv4_spec->hdr.dst_addr;
+ filter->src_ip = ipv4_spec->hdr.src_addr;
+ filter->proto = ipv4_spec->hdr.next_proto_id;
+
+ /* check if the next not void item is TCP or UDP or SCTP */
+ index++;
+ NEXT_ITEM_OF_PATTERN(item, pattern, index);
+ if (item->type != RTE_FLOW_ITEM_TYPE_TCP &&
+ item->type != RTE_FLOW_ITEM_TYPE_UDP &&
+ item->type != RTE_FLOW_ITEM_TYPE_SCTP) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ /* Not supported last point for range */
+ if (item->last) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ item, "Not supported last point for range");
+ return -rte_errno;
+ }
+
+ /* get the TCP/UDP/SCTP info */
+ if (item->type == RTE_FLOW_ITEM_TYPE_TCP) {
+ if (item->spec && item->mask) {
+ tcp_mask = (const struct rte_flow_item_tcp *)item->mask;
+
+ /**
+ * Only support src & dst ports, tcp flags,
+ * others should be masked.
+ */
+ if (tcp_mask->hdr.sent_seq ||
+ tcp_mask->hdr.recv_ack ||
+ tcp_mask->hdr.data_off ||
+ tcp_mask->hdr.rx_win ||
+ tcp_mask->hdr.cksum ||
+ tcp_mask->hdr.tcp_urp) {
+ memset(filter, 0,
+ sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ filter->dst_port_mask = tcp_mask->hdr.dst_port;
+ filter->src_port_mask = tcp_mask->hdr.src_port;
+ if (tcp_mask->hdr.tcp_flags == 0xFF) {
+ filter->flags |= RTE_NTUPLE_FLAGS_TCP_FLAG;
+ } else if (!tcp_mask->hdr.tcp_flags) {
+ filter->flags &= ~RTE_NTUPLE_FLAGS_TCP_FLAG;
+ } else {
+ memset(filter, 0,
+ sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ tcp_spec = (const struct rte_flow_item_tcp *)item->spec;
+ filter->dst_port = tcp_spec->hdr.dst_port;
+ filter->src_port = tcp_spec->hdr.src_port;
+ filter->tcp_flags = tcp_spec->hdr.tcp_flags;
+ }
+ } else if (item->type == RTE_FLOW_ITEM_TYPE_UDP) {
+ if (item->spec && item->mask) {
+ udp_mask = (const struct rte_flow_item_udp *)item->mask;
+
+ /**
+ * Only support src & dst ports,
+ * others should be masked.
+ */
+ if (udp_mask->hdr.dgram_len ||
+ udp_mask->hdr.dgram_cksum) {
+ memset(filter, 0,
+ sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ filter->dst_port_mask = udp_mask->hdr.dst_port;
+ filter->src_port_mask = udp_mask->hdr.src_port;
+
+ udp_spec = (const struct rte_flow_item_udp *)item->spec;
+ filter->dst_port = udp_spec->hdr.dst_port;
+ filter->src_port = udp_spec->hdr.src_port;
+ }
+ } else {
+ if (item->spec && item->mask) {
+ sctp_mask = (const struct rte_flow_item_sctp *)
+ item->mask;
+
+ /**
+ * Only support src & dst ports,
+ * others should be masked.
+ */
+ if (sctp_mask->hdr.tag ||
+ sctp_mask->hdr.cksum) {
+ memset(filter, 0,
+ sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ filter->dst_port_mask = sctp_mask->hdr.dst_port;
+ filter->src_port_mask = sctp_mask->hdr.src_port;
+
+ sctp_spec = (const struct rte_flow_item_sctp *)
+ item->spec;
+ filter->dst_port = sctp_spec->hdr.dst_port;
+ filter->src_port = sctp_spec->hdr.src_port;
+ }
+ }
+ /* check if the next not void item is END */
+ index++;
+ NEXT_ITEM_OF_PATTERN(item, pattern, index);
+ if (item->type != RTE_FLOW_ITEM_TYPE_END) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item, "Not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ /* parse action */
+ index = 0;
+
+ /**
+ * n-tuple only supports forwarding,
+ * 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_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ACTION,
+ item, "Not supported action.");
+ return -rte_errno;
+ }
+ filter->queue =
+ ((const struct rte_flow_action_queue *)act->conf)->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_ntuple_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_ntuple_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_ntuple_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_ntuple_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;
+}
+
+/* a specific function for igb because the flags is specific */
+static int
+igb_parse_ntuple_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_ntuple_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(hw->mac.type);
+
+ ret = cons_parse_ntuple_filter(attr, pattern, actions, filter, error);
+
+ if (ret)
+ return ret;
+
+ /* Igb doesn't support many priorities. */
+ if (filter->priority > E1000_2TUPLE_MAX_PRI) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "Priority not supported by ntuple filter");
+ return -rte_errno;
+ }
+
+ if (hw->mac.type == e1000_82576) {
+ if (filter->queue >= IGB_MAX_RX_QUEUE_NUM_82576) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "queue number not "
+ "supported by ntuple filter");
+ return -rte_errno;
+ }
+ filter->flags |= RTE_5TUPLE_FLAGS;
+ } else {
+ if (filter->src_ip_mask || filter->dst_ip_mask ||
+ filter->src_port_mask) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "only two tuple are "
+ "supported by this filter");
+ return -rte_errno;
+ }
+ if (filter->queue >= IGB_MAX_RX_QUEUE_NUM) {
+ memset(filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "queue number not "
+ "supported by ntuple filter");
+ return -rte_errno;
+ }
+ filter->flags |= RTE_2TUPLE_FLAGS;
+ }
+
+ 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
+ * the HW. Because there can be no enough room for the rule.
+ */
+static int
+igb_flow_validate(__rte_unused 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_flow_error *error)
+{
+ struct rte_eth_ntuple_filter ntuple_filter;
+ int ret;
+
+ memset(&ntuple_filter, 0, sizeof(struct rte_eth_ntuple_filter));
+ ret = igb_parse_ntuple_filter(dev, attr, pattern,
+ actions, &ntuple_filter, error);
+ if (!ret)
+ return 0;
+
+ return ret;
+}
+
+const struct rte_flow_ops igb_flow_ops = {
+ igb_flow_validate,
+ NULL,
+ NULL,
+ NULL,
+ NULL,
+};
git.droids-corp.org / dpdk.git / commitdiff