/*
- * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014 Nicira, Inc.
+ * Copyright (c) 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Nicira, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
struct ds;
struct flow_wildcards;
struct minimask;
-struct ofpbuf;
+struct dp_packet;
struct pkt_metadata;
+struct match;
/* This sequence number should be incremented whenever anything involving flows
* or the wildcarding of flows changes. This will cause build assertion
* failures in places which likely need to be updated. */
-#define FLOW_WC_SEQ 26
+#define FLOW_WC_SEQ 32
+/* Number of Open vSwitch extension 32-bit registers. */
#define FLOW_N_REGS 8
BUILD_ASSERT_DECL(FLOW_N_REGS <= NXM_NX_MAX_REGS);
+BUILD_ASSERT_DECL(FLOW_N_REGS % 2 == 0); /* Even. */
+
+/* Number of OpenFlow 1.5+ 64-bit registers.
+ *
+ * Each of these overlays a pair of Open vSwitch 32-bit registers, so there
+ * are half as many of them.*/
+#define FLOW_N_XREGS (FLOW_N_REGS / 2)
/* Used for struct flow's dl_type member for frames that have no Ethernet
* type, that is, pure 802.2 frames. */
#define FLOW_TNL_F_DONT_FRAGMENT (1 << 0)
#define FLOW_TNL_F_CSUM (1 << 1)
#define FLOW_TNL_F_KEY (1 << 2)
+#define FLOW_TNL_F_OAM (1 << 3)
+
+#define FLOW_TNL_F_MASK ((1 << 4) - 1)
const char *flow_tun_flag_to_string(uint32_t flags);
*
* The meaning of 'in_port' is context-dependent. In most cases, it is a
* 16-bit OpenFlow 1.0 port number. In the software datapath interface (dpif)
- * layer and its implementations (e.g. dpif-linux, dpif-netdev), it is instead
- * a 32-bit datapath port number.
+ * layer and its implementations (e.g. dpif-netlink, dpif-netdev), it is
+ * instead a 32-bit datapath port number.
*
* The fields are organized in four segments to facilitate staged lookup, where
* lower layer fields are first used to determine if the later fields need to
* reflected in miniflow_extract()!
*/
struct flow {
- /* L1 */
+ /* Metadata */
struct flow_tnl tunnel; /* Encapsulating tunnel parameters. */
ovs_be64 metadata; /* OpenFlow Metadata. */
uint32_t regs[FLOW_N_REGS]; /* Registers. */
uint32_t skb_priority; /* Packet priority for QoS. */
uint32_t pkt_mark; /* Packet mark. */
- uint32_t recirc_id; /* Must be exact match. */
+ uint32_t dp_hash; /* Datapath computed hash value. The exact
+ * computation is opaque to the user space. */
union flow_in_port in_port; /* Input port.*/
+ uint32_t recirc_id; /* Must be exact match. */
+ uint32_t conj_id; /* Conjunction ID. */
+ ofp_port_t actset_output; /* Output port in action set. */
+ uint8_t pad1[6]; /* Pad to 64 bits. */
- /* L2, Order the same as in the Ethernet header! */
- uint8_t dl_dst[6]; /* Ethernet destination address. */
- uint8_t dl_src[6]; /* Ethernet source address. */
+ /* L2, Order the same as in the Ethernet header! (64-bit aligned) */
+ uint8_t dl_dst[ETH_ADDR_LEN]; /* Ethernet destination address. */
+ uint8_t dl_src[ETH_ADDR_LEN]; /* Ethernet source address. */
ovs_be16 dl_type; /* Ethernet frame type. */
ovs_be16 vlan_tci; /* If 802.1Q, TCI | VLAN_CFI; otherwise 0. */
- ovs_be32 mpls_lse[FLOW_MAX_MPLS_LABELS]; /* MPLS label stack entry. */
-
- /* L3 */
+ ovs_be32 mpls_lse[ROUND_UP(FLOW_MAX_MPLS_LABELS, 2)]; /* MPLS label stack
+ (with padding). */
+ /* L3 (64-bit aligned) */
+ ovs_be32 nw_src; /* IPv4 source address. */
+ ovs_be32 nw_dst; /* IPv4 destination address. */
struct in6_addr ipv6_src; /* IPv6 source address. */
struct in6_addr ipv6_dst; /* IPv6 destination address. */
ovs_be32 ipv6_label; /* IPv6 flow label. */
- ovs_be32 nw_src; /* IPv4 source address. */
- ovs_be32 nw_dst; /* IPv4 destination address. */
uint8_t nw_frag; /* FLOW_FRAG_* flags. */
uint8_t nw_tos; /* IP ToS (including DSCP and ECN). */
uint8_t nw_ttl; /* IP TTL/Hop Limit. */
uint8_t nw_proto; /* IP protocol or low 8 bits of ARP opcode. */
- uint8_t arp_sha[6]; /* ARP/ND source hardware address. */
- uint8_t arp_tha[6]; /* ARP/ND target hardware address. */
struct in6_addr nd_target; /* IPv6 neighbor discovery (ND) target. */
+ uint8_t arp_sha[ETH_ADDR_LEN]; /* ARP/ND source hardware address. */
+ uint8_t arp_tha[ETH_ADDR_LEN]; /* ARP/ND target hardware address. */
ovs_be16 tcp_flags; /* TCP flags. With L3 to avoid matching L4. */
- ovs_be16 pad; /* Padding. */
+ ovs_be16 pad2; /* Pad to 64 bits. */
- /* L4 */
+ /* L4 (64-bit aligned) */
ovs_be16 tp_src; /* TCP/UDP/SCTP source port. */
- ovs_be16 tp_dst; /* TCP/UDP/SCTP destination port.
- * Keep last for the BUILD_ASSERT_DECL below */
- uint32_t dp_hash; /* Datapath computed hash value. The exact
- computation is opaque to the user space.*/
+ ovs_be16 tp_dst; /* TCP/UDP/SCTP destination port. */
+ ovs_be32 igmp_group_ip4; /* IGMP group IPv4 address.
+ * Keep last for BUILD_ASSERT_DECL below. */
};
-BUILD_ASSERT_DECL(sizeof(struct flow) % 4 == 0);
+BUILD_ASSERT_DECL(sizeof(struct flow) % sizeof(uint64_t) == 0);
+
+#define FLOW_U64S (sizeof(struct flow) / sizeof(uint64_t))
-#define FLOW_U32S (sizeof(struct flow) / 4)
+/* Some flow fields are mutually exclusive or only appear within the flow
+ * pipeline. IPv6 headers are bigger than IPv4 and MPLS, and IPv6 ND packets
+ * are bigger than TCP,UDP and IGMP packets. */
+#define FLOW_MAX_PACKET_U64S (FLOW_U64S \
+ /* Unused in datapath */ - FLOW_U64_SIZE(regs) \
+ - FLOW_U64_SIZE(metadata) \
+ /* L2.5/3 */ - FLOW_U64_SIZE(nw_src) /* incl. nw_dst */ \
+ - FLOW_U64_SIZE(mpls_lse) \
+ /* L4 */ - FLOW_U64_SIZE(tp_src) \
+ )
/* Remember to update FLOW_WC_SEQ when changing 'struct flow'. */
-BUILD_ASSERT_DECL(offsetof(struct flow, dp_hash) + sizeof(uint32_t)
- == sizeof(struct flow_tnl) + 172
- && FLOW_WC_SEQ == 26);
+BUILD_ASSERT_DECL(offsetof(struct flow, igmp_group_ip4) + sizeof(uint32_t)
+ == sizeof(struct flow_tnl) + 192
+ && FLOW_WC_SEQ == 32);
/* Incremental points at which flow classification may be performed in
* segments.
* This is located here since this is dependent on the structure of the
* struct flow defined above:
- * Each offset must be on a distinct, successive U32 boundary strictly
+ * Each offset must be on a distinct, successive U64 boundary strictly
* within the struct flow. */
enum {
FLOW_SEGMENT_1_ENDS_AT = offsetof(struct flow, dl_dst),
- FLOW_SEGMENT_2_ENDS_AT = offsetof(struct flow, ipv6_src),
+ FLOW_SEGMENT_2_ENDS_AT = offsetof(struct flow, nw_src),
FLOW_SEGMENT_3_ENDS_AT = offsetof(struct flow, tp_src),
};
-BUILD_ASSERT_DECL(FLOW_SEGMENT_1_ENDS_AT % 4 == 0);
-BUILD_ASSERT_DECL(FLOW_SEGMENT_2_ENDS_AT % 4 == 0);
-BUILD_ASSERT_DECL(FLOW_SEGMENT_3_ENDS_AT % 4 == 0);
+BUILD_ASSERT_DECL(FLOW_SEGMENT_1_ENDS_AT % sizeof(uint64_t) == 0);
+BUILD_ASSERT_DECL(FLOW_SEGMENT_2_ENDS_AT % sizeof(uint64_t) == 0);
+BUILD_ASSERT_DECL(FLOW_SEGMENT_3_ENDS_AT % sizeof(uint64_t) == 0);
BUILD_ASSERT_DECL( 0 < FLOW_SEGMENT_1_ENDS_AT);
BUILD_ASSERT_DECL(FLOW_SEGMENT_1_ENDS_AT < FLOW_SEGMENT_2_ENDS_AT);
BUILD_ASSERT_DECL(FLOW_SEGMENT_2_ENDS_AT < FLOW_SEGMENT_3_ENDS_AT);
BUILD_ASSERT_DECL(FLOW_SEGMENT_3_ENDS_AT < sizeof(struct flow));
-extern const uint8_t flow_segment_u32s[];
-
-/* Represents the metadata fields of struct flow. */
-struct flow_metadata {
- uint32_t dp_hash; /* Datapath computed hash field. */
- uint32_t recirc_id; /* Recirculation ID. */
- ovs_be64 tun_id; /* Encapsulating tunnel ID. */
- ovs_be32 tun_src; /* Tunnel outer IPv4 src addr */
- ovs_be32 tun_dst; /* Tunnel outer IPv4 dst addr */
- ovs_be64 metadata; /* OpenFlow 1.1+ metadata field. */
- uint32_t regs[FLOW_N_REGS]; /* Registers. */
- uint32_t pkt_mark; /* Packet mark. */
- ofp_port_t in_port; /* OpenFlow port or zero. */
-};
+extern const uint8_t flow_segment_u64s[];
-void flow_extract(struct ofpbuf *, const struct pkt_metadata *md,
- struct flow *);
+void flow_extract(struct dp_packet *, struct flow *);
void flow_zero_wildcards(struct flow *, const struct flow_wildcards *);
void flow_unwildcard_tp_ports(const struct flow *, struct flow_wildcards *);
-void flow_get_metadata(const struct flow *, struct flow_metadata *);
+void flow_get_metadata(const struct flow *, struct match *flow_metadata);
char *flow_to_string(const struct flow *);
void format_flags(struct ds *ds, const char *(*bit_to_string)(uint32_t),
void flow_set_mpls_bos(struct flow *, int idx, uint8_t stack);
void flow_set_mpls_lse(struct flow *, int idx, ovs_be32 lse);
-void flow_compose(struct ofpbuf *, const struct flow *);
+void flow_compose(struct dp_packet *, const struct flow *);
+
+static inline uint64_t
+flow_get_xreg(const struct flow *flow, int idx)
+{
+ return ((uint64_t) flow->regs[idx * 2] << 32) | flow->regs[idx * 2 + 1];
+}
+
+static inline void
+flow_set_xreg(struct flow *flow, int idx, uint64_t value)
+{
+ flow->regs[idx * 2] = value >> 32;
+ flow->regs[idx * 2 + 1] = value;
+}
static inline int
flow_compare_3way(const struct flow *a, const struct flow *b)
static inline size_t
flow_hash(const struct flow *flow, uint32_t basis)
{
- return hash_words((const uint32_t *) flow, sizeof *flow / 4, basis);
+ return hash_words64((const uint64_t *)flow,
+ sizeof *flow / sizeof(uint64_t), basis);
}
static inline uint16_t
{
return hash_int(odp_to_u32(odp_port), 0);
}
-
-uint32_t flow_hash_in_minimask(const struct flow *, const struct minimask *,
- uint32_t basis);
-uint32_t flow_hash_in_minimask_range(const struct flow *,
- const struct minimask *,
- uint8_t start, uint8_t end,
- uint32_t *basis);
\f
/* Wildcards for a flow.
*
struct flow masks;
};
+#define WC_MASK_FIELD(WC, FIELD) \
+ memset(&(WC)->masks.FIELD, 0xff, sizeof (WC)->masks.FIELD)
+#define WC_UNMASK_FIELD(WC, FIELD) \
+ memset(&(WC)->masks.FIELD, 0, sizeof (WC)->masks.FIELD)
+
void flow_wildcards_init_catchall(struct flow_wildcards *);
+void flow_wildcards_init_for_packet(struct flow_wildcards *,
+ const struct flow *);
+uint64_t flow_wc_map(const struct flow *);
+
void flow_wildcards_clear_non_packet_fields(struct flow_wildcards *);
bool flow_wildcards_is_catchall(const struct flow_wildcards *);
void flow_wildcards_set_reg_mask(struct flow_wildcards *,
int idx, uint32_t mask);
+void flow_wildcards_set_xreg_mask(struct flow_wildcards *,
+ int idx, uint64_t mask);
void flow_wildcards_and(struct flow_wildcards *dst,
const struct flow_wildcards *src1,
const struct flow_wildcards *src2);
bool flow_wildcards_has_extra(const struct flow_wildcards *,
const struct flow_wildcards *);
-
-void flow_wildcards_fold_minimask(struct flow_wildcards *,
- const struct minimask *);
-void flow_wildcards_fold_minimask_range(struct flow_wildcards *,
- const struct minimask *,
- uint8_t start, uint8_t end);
-
uint32_t flow_wildcards_hash(const struct flow_wildcards *, uint32_t basis);
bool flow_wildcards_equal(const struct flow_wildcards *,
const struct flow_wildcards *);
\f
/* Compressed flow. */
-#define MINI_N_INLINE (sizeof(void *) == 4 ? 7 : 8)
-BUILD_ASSERT_DECL(FLOW_U32S <= 64);
+/* Number of 64-bit words present in struct miniflow. */
+#define MINI_N_INLINE 4
+
+/* Maximum number of 64-bit words supported. */
+BUILD_ASSERT_DECL(FLOW_U64S <= 63);
/* A sparse representation of a "struct flow".
*
* saves time when the goal is to iterate over only the nonzero parts of the
* struct.
*
- * The 'map' member holds one bit for each uint32_t in a "struct flow". Each
- * 0-bit indicates that the corresponding uint32_t is zero, each 1-bit that it
- * *may* be nonzero.
- *
- * 'values' points to the start of an array that has one element for each 1-bit
- * in 'map'. The least-numbered 1-bit is in values[0], the next 1-bit is in
- * values[1], and so on.
+ * The 'map' member holds one bit for each uint64_t in a "struct flow". Each
+ * 0-bit indicates that the corresponding uint64_t is zero, each 1-bit that it
+ * *may* be nonzero (see below how this applies to minimasks).
*
- * 'values' may point to a few different locations:
+ * The 'values_inline' boolean member indicates that the values are at
+ * 'inline_values'. If 'values_inline' is zero, then the values are
+ * offline at 'offline_values'. In either case, values is an array that has
+ * one element for each 1-bit in 'map'. The least-numbered 1-bit is in
+ * the first element of the values array, the next 1-bit is in the next array
+ * element, and so on.
*
- * - If 'map' has MINI_N_INLINE or fewer 1-bits, it may point to
- * 'inline_values'. One hopes that this is the common case.
+ * MINI_N_INLINE is the default number of inline words. When a miniflow is
+ * dynamically allocated the actual amount of inline storage may be different.
+ * In that case 'inline_values' contains storage at least for the number
+ * of words indicated by 'map' (one uint64_t for each 1-bit in the map).
*
- * - If 'map' has more than MINI_N_INLINE 1-bits, it may point to memory
- * allocated with malloc().
- *
- * - The caller could provide storage on the stack for situations where
- * that makes sense. So far that's only proved useful for
- * minimask_combine(), but the principle works elsewhere.
- *
- * Elements in 'values' are allowed to be zero. This is useful for "struct
+ * Elements in values array are allowed to be zero. This is useful for "struct
* minimatch", for which ensuring that the miniflow and minimask members have
* same 'map' allows optimization. This allowance applies only to a miniflow
* that is not a mask. That is, a minimask may NOT have zero elements in
* its 'values'.
*/
struct miniflow {
- uint64_t map;
- uint32_t *values;
- uint32_t inline_values[MINI_N_INLINE];
+ uint64_t map:63;
+ uint64_t values_inline:1;
+ union {
+ uint64_t *offline_values;
+ uint64_t inline_values[MINI_N_INLINE]; /* Minimum inline size. */
+ };
};
+BUILD_ASSERT_DECL(sizeof(struct miniflow)
+ == sizeof(uint64_t) + MINI_N_INLINE * sizeof(uint64_t));
+
+#define MINIFLOW_VALUES_SIZE(COUNT) ((COUNT) * sizeof(uint64_t))
+
+static inline uint64_t *miniflow_values(struct miniflow *mf)
+{
+ return OVS_LIKELY(mf->values_inline)
+ ? mf->inline_values : mf->offline_values;
+}
+
+static inline const uint64_t *miniflow_get_values(const struct miniflow *mf)
+{
+ return OVS_LIKELY(mf->values_inline)
+ ? mf->inline_values : mf->offline_values;
+}
/* This is useful for initializing a miniflow for a miniflow_extract() call. */
static inline void miniflow_initialize(struct miniflow *mf,
- uint32_t buf[FLOW_U32S])
+ uint64_t buf[FLOW_U64S])
{
mf->map = 0;
- mf->values = buf;
+ mf->values_inline = (buf == (uint64_t *)(mf + 1));
+ if (!mf->values_inline) {
+ mf->offline_values = buf;
+ }
}
struct pkt_metadata;
/* The 'dst->values' must be initialized with a buffer with space for
- * FLOW_U32S. 'dst->map' is ignored on input and set on output to
+ * FLOW_U64S. 'dst->map' is ignored on input and set on output to
* indicate which fields were extracted. */
-void miniflow_extract(struct ofpbuf *packet, const struct pkt_metadata *,
- struct miniflow *dst);
+void miniflow_extract(struct dp_packet *packet, struct miniflow *dst);
void miniflow_init(struct miniflow *, const struct flow *);
void miniflow_init_with_minimask(struct miniflow *, const struct flow *,
const struct minimask *);
void miniflow_clone(struct miniflow *, const struct miniflow *);
+void miniflow_clone_inline(struct miniflow *, const struct miniflow *,
+ size_t n_values);
void miniflow_move(struct miniflow *dst, struct miniflow *);
void miniflow_destroy(struct miniflow *);
void miniflow_expand(const struct miniflow *, struct flow *);
-/* These accessors use byte offsets, which are assumed to be compile-time
- * constants. */
-static inline uint8_t miniflow_get_u8(const struct miniflow *,
- unsigned int ofs);
-static inline uint16_t miniflow_get_u16(const struct miniflow *,
- unsigned int ofs);
-static inline ovs_be16 miniflow_get_be16(const struct miniflow *,
- unsigned int ofs);
+static inline uint64_t flow_u64_value(const struct flow *flow, size_t index)
+{
+ return ((uint64_t *)(flow))[index];
+}
+
+static inline uint64_t *flow_u64_lvalue(struct flow *flow, size_t index)
+{
+ return &((uint64_t *)(flow))[index];
+}
+
+static inline bool
+flow_get_next_in_map(const struct flow *flow, uint64_t map, uint64_t *value)
+{
+ if (map) {
+ *value = flow_u64_value(flow, raw_ctz(map));
+ return true;
+ }
+ return false;
+}
+
+/* Iterate through all flow u64 values specified by 'MAP'. */
+#define FLOW_FOR_EACH_IN_MAP(VALUE, FLOW, MAP) \
+ for (uint64_t map__ = (MAP); \
+ flow_get_next_in_map(FLOW, map__, &(VALUE)); \
+ map__ = zero_rightmost_1bit(map__))
+
+/* Iterate through all struct flow u64 indices specified by 'MAP'. */
+#define MAP_FOR_EACH_INDEX(U64IDX, MAP) \
+ for (uint64_t map__ = (MAP); \
+ map__ && ((U64IDX) = raw_ctz(map__), true); \
+ map__ = zero_rightmost_1bit(map__))
+
+#define FLOW_U64_SIZE(FIELD) \
+ DIV_ROUND_UP(sizeof(((struct flow *)0)->FIELD), sizeof(uint64_t))
+
+#define MINIFLOW_MAP(FIELD) \
+ (((UINT64_C(1) << FLOW_U64_SIZE(FIELD)) - 1) \
+ << (offsetof(struct flow, FIELD) / sizeof(uint64_t)))
+
+struct mf_for_each_in_map_aux {
+ const uint64_t *values;
+ uint64_t fmap;
+ uint64_t map;
+};
+
+static inline bool
+mf_get_next_in_map(struct mf_for_each_in_map_aux *aux, uint64_t *value)
+{
+ if (aux->map) {
+ uint64_t rm1bit = rightmost_1bit(aux->map);
+ aux->map -= rm1bit;
+
+ if (aux->fmap & rm1bit) {
+ /* Advance 'aux->values' to point to the value for 'rm1bit'. */
+ uint64_t trash = aux->fmap & (rm1bit - 1);
+ if (trash) {
+ aux->fmap -= trash;
+ aux->values += count_1bits(trash);
+ }
+
+ /* Retrieve the value for 'rm1bit' then advance past it. */
+ aux->fmap -= rm1bit;
+ *value = *aux->values++;
+ } else {
+ *value = 0;
+ }
+ return true;
+ } else {
+ return false;
+ }
+}
+
+/* Iterate through all miniflow u64 values specified by 'MAP'. */
+#define MINIFLOW_FOR_EACH_IN_MAP(VALUE, FLOW, MAP) \
+ for (struct mf_for_each_in_map_aux aux__ \
+ = { miniflow_get_values(FLOW), (FLOW)->map, MAP }; \
+ mf_get_next_in_map(&aux__, &(VALUE)); \
+ )
+
+/* This can be used when it is known that 'u64_idx' is set in 'map'. */
+static inline uint64_t
+miniflow_values_get__(const uint64_t *values, uint64_t map, int u64_idx)
+{
+ return values[count_1bits(map & ((UINT64_C(1) << u64_idx) - 1))];
+}
+
+/* This can be used when it is known that 'u64_idx' is set in
+ * the map of 'mf'. */
+static inline uint64_t
+miniflow_get__(const struct miniflow *mf, int u64_idx)
+{
+ return miniflow_values_get__(miniflow_get_values(mf), mf->map, u64_idx);
+}
+
+/* Get the value of 'FIELD' of an up to 8 byte wide integer type 'TYPE' of
+ * a miniflow. */
+#define MINIFLOW_GET_TYPE(MF, TYPE, OFS) \
+ (((MF)->map & (UINT64_C(1) << (OFS) / sizeof(uint64_t))) \
+ ? ((OVS_FORCE const TYPE *) \
+ (miniflow_get_values(MF) \
+ + count_1bits((MF)->map & \
+ ((UINT64_C(1) << (OFS) / sizeof(uint64_t)) - 1)))) \
+ [(OFS) % sizeof(uint64_t) / sizeof(TYPE)] \
+ : 0) \
+
+#define MINIFLOW_GET_U8(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, uint8_t, offsetof(struct flow, FIELD))
+#define MINIFLOW_GET_U16(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, uint16_t, offsetof(struct flow, FIELD))
+#define MINIFLOW_GET_BE16(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, ovs_be16, offsetof(struct flow, FIELD))
+#define MINIFLOW_GET_U32(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, uint32_t, offsetof(struct flow, FIELD))
+#define MINIFLOW_GET_BE32(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, ovs_be32, offsetof(struct flow, FIELD))
+#define MINIFLOW_GET_U64(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, uint64_t, offsetof(struct flow, FIELD))
+#define MINIFLOW_GET_BE64(FLOW, FIELD) \
+ MINIFLOW_GET_TYPE(FLOW, ovs_be64, offsetof(struct flow, FIELD))
+
+static inline uint64_t miniflow_get(const struct miniflow *,
+ unsigned int u64_ofs);
static inline uint32_t miniflow_get_u32(const struct miniflow *,
- unsigned int ofs);
+ unsigned int u32_ofs);
static inline ovs_be32 miniflow_get_be32(const struct miniflow *,
- unsigned int ofs);
-
+ unsigned int be32_ofs);
static inline uint16_t miniflow_get_vid(const struct miniflow *);
static inline uint16_t miniflow_get_tcp_flags(const struct miniflow *);
static inline ovs_be64 miniflow_get_metadata(const struct miniflow *);
bool miniflow_equal_flow_in_minimask(const struct miniflow *a,
const struct flow *b,
const struct minimask *);
-uint32_t miniflow_hash(const struct miniflow *, uint32_t basis);
-uint32_t miniflow_hash_in_minimask(const struct miniflow *,
- const struct minimask *, uint32_t basis);
-uint64_t miniflow_get_map_in_range(const struct miniflow *miniflow,
- uint8_t start, uint8_t end,
- unsigned int *offset);
+uint32_t miniflow_hash_5tuple(const struct miniflow *flow, uint32_t basis);
\f
/* Compressed flow wildcards. */
void minimask_move(struct minimask *dst, struct minimask *src);
void minimask_combine(struct minimask *dst,
const struct minimask *a, const struct minimask *b,
- uint32_t storage[FLOW_U32S]);
+ uint64_t storage[FLOW_U64S]);
void minimask_destroy(struct minimask *);
void minimask_expand(const struct minimask *, struct flow_wildcards *);
-uint32_t minimask_get(const struct minimask *, unsigned int u32_ofs);
+static inline uint32_t minimask_get_u32(const struct minimask *,
+ unsigned int u32_ofs);
+static inline ovs_be32 minimask_get_be32(const struct minimask *,
+ unsigned int be32_ofs);
static inline uint16_t minimask_get_vid_mask(const struct minimask *);
static inline ovs_be64 minimask_get_metadata_mask(const struct minimask *);
bool minimask_equal(const struct minimask *a, const struct minimask *b);
-uint32_t minimask_hash(const struct minimask *, uint32_t basis);
-
bool minimask_has_extra(const struct minimask *, const struct minimask *);
-bool minimask_is_catchall(const struct minimask *);
-\f
-
-/* 'OFS' is a compile-time constant. */
-#define MINIFLOW_GET_TYPE(MF, TYPE, OFS) \
- (MF->map & UINT64_C(1) << OFS / 4) \
- ? ((OVS_FORCE const TYPE *) \
- (MF->values + count_1bits(MF->map & ((UINT64_C(1) << OFS / 4) - 1)))) \
- [OFS % 4 / sizeof(TYPE)] \
- : 0
-static inline uint8_t
-miniflow_get_u8(const struct miniflow *flow, unsigned int ofs)
+\f
+/* Returns true if 'mask' matches every packet, false if 'mask' fixes any bits
+ * or fields. */
+static inline bool
+minimask_is_catchall(const struct minimask *mask)
{
- return MINIFLOW_GET_TYPE(flow, uint8_t, ofs);
+ /* For every 1-bit in mask's map, the corresponding value is non-zero,
+ * so the only way the mask can not fix any bits or fields is for the
+ * map the be zero. */
+ return mask->masks.map == 0;
}
-static inline uint16_t
-miniflow_get_u16(const struct miniflow *flow, unsigned int ofs)
+/* Returns the uint64_t that would be at byte offset '8 * u64_ofs' if 'flow'
+ * were expanded into a "struct flow". */
+static inline uint64_t miniflow_get(const struct miniflow *flow,
+ unsigned int u64_ofs)
{
- return MINIFLOW_GET_TYPE(flow, uint16_t, ofs);
+ return flow->map & (UINT64_C(1) << u64_ofs)
+ ? miniflow_get__(flow, u64_ofs) : 0;
}
-/* Returns the ovs_be16 that would be at byte offset 'u8_ofs' if 'flow' were
- * expanded into a "struct flow". */
-static inline ovs_be16
-miniflow_get_be16(const struct miniflow *flow, unsigned int ofs)
+static inline uint32_t miniflow_get_u32(const struct miniflow *flow,
+ unsigned int u32_ofs)
{
- return MINIFLOW_GET_TYPE(flow, ovs_be16, ofs);
-}
+ uint64_t value = miniflow_get(flow, u32_ofs / 2);
-static inline uint32_t
-miniflow_get_u32(const struct miniflow *flow, unsigned int ofs)
-{
- return MINIFLOW_GET_TYPE(flow, uint32_t, ofs);
+#if WORDS_BIGENDIAN
+ return (u32_ofs & 1) ? value : value >> 32;
+#else
+ return (u32_ofs & 1) ? value >> 32 : value;
+#endif
}
-static inline ovs_be32
-miniflow_get_be32(const struct miniflow *flow, unsigned int ofs)
+static inline ovs_be32 miniflow_get_be32(const struct miniflow *flow,
+ unsigned int be32_ofs)
{
- return MINIFLOW_GET_TYPE(flow, ovs_be32, ofs);
+ return (OVS_FORCE ovs_be32)miniflow_get_u32(flow, be32_ofs);
}
-#undef MINIFLOW_GET_TYPE
-
/* Returns the VID within the vlan_tci member of the "struct flow" represented
* by 'flow'. */
static inline uint16_t
miniflow_get_vid(const struct miniflow *flow)
{
- ovs_be16 tci = miniflow_get_be16(flow, offsetof(struct flow, vlan_tci));
+ ovs_be16 tci = MINIFLOW_GET_BE16(flow, vlan_tci);
return vlan_tci_to_vid(tci);
}
+/* Returns the uint32_t that would be at byte offset '4 * u32_ofs' if 'mask'
+ * were expanded into a "struct flow_wildcards". */
+static inline uint32_t
+minimask_get_u32(const struct minimask *mask, unsigned int u32_ofs)
+{
+ return miniflow_get_u32(&mask->masks, u32_ofs);
+}
+
+static inline ovs_be32
+minimask_get_be32(const struct minimask *mask, unsigned int be32_ofs)
+{
+ return (OVS_FORCE ovs_be32)minimask_get_u32(mask, be32_ofs);
+}
+
/* Returns the VID mask within the vlan_tci member of the "struct
* flow_wildcards" represented by 'mask'. */
static inline uint16_t
static inline uint16_t
miniflow_get_tcp_flags(const struct miniflow *flow)
{
- return ntohs(miniflow_get_be16(flow, offsetof(struct flow, tcp_flags)));
+ return ntohs(MINIFLOW_GET_BE16(flow, tcp_flags));
}
/* Returns the value of the OpenFlow 1.1+ "metadata" field in 'flow'. */
static inline ovs_be64
miniflow_get_metadata(const struct miniflow *flow)
{
- enum { MD_OFS = offsetof(struct flow, metadata) };
- BUILD_ASSERT_DECL(MD_OFS % sizeof(uint32_t) == 0);
- ovs_be32 hi = miniflow_get_be32(flow, MD_OFS);
- ovs_be32 lo = miniflow_get_be32(flow, MD_OFS + 4);
-
- return htonll(((uint64_t) ntohl(hi) << 32) | ntohl(lo));
+ return MINIFLOW_GET_BE64(flow, metadata);
}
/* Returns the mask for the OpenFlow 1.1+ "metadata" field in 'mask'.
static inline ovs_be64
minimask_get_metadata_mask(const struct minimask *mask)
{
- return miniflow_get_metadata(&mask->masks);
+ return MINIFLOW_GET_BE64(&mask->masks, metadata);
}
-static inline struct pkt_metadata
-pkt_metadata_from_flow(const struct flow *flow)
+/* Perform a bitwise OR of miniflow 'src' flow data with the equivalent
+ * fields in 'dst', storing the result in 'dst'. */
+static inline void
+flow_union_with_miniflow(struct flow *dst, const struct miniflow *src)
{
- struct pkt_metadata md;
+ uint64_t *dst_u64 = (uint64_t *) dst;
+ const uint64_t *p = miniflow_get_values(src);
+ int idx;
- md.recirc_id = flow->recirc_id;
- md.dp_hash = flow->dp_hash;
- md.tunnel = flow->tunnel;
- md.skb_priority = flow->skb_priority;
- md.pkt_mark = flow->pkt_mark;
- md.in_port = flow->in_port;
+ MAP_FOR_EACH_INDEX(idx, src->map) {
+ dst_u64[idx] |= *p++;
+ }
+}
- return md;
+static inline void
+pkt_metadata_from_flow(struct pkt_metadata *md, const struct flow *flow)
+{
+ md->recirc_id = flow->recirc_id;
+ md->dp_hash = flow->dp_hash;
+ md->tunnel = flow->tunnel;
+ md->skb_priority = flow->skb_priority;
+ md->pkt_mark = flow->pkt_mark;
+ md->in_port = flow->in_port;
}
static inline bool is_ip_any(const struct flow *flow)
&& flow->nw_proto == IPPROTO_ICMPV6);
}
+static inline bool is_igmp(const struct flow *flow)
+{
+ return (flow->dl_type == htons(ETH_TYPE_IP)
+ && flow->nw_proto == IPPROTO_IGMP);
+}
+
+static inline bool is_mld(const struct flow *flow)
+{
+ return is_icmpv6(flow)
+ && (flow->tp_src == htons(MLD_QUERY)
+ || flow->tp_src == htons(MLD_REPORT)
+ || flow->tp_src == htons(MLD_DONE)
+ || flow->tp_src == htons(MLD2_REPORT));
+}
+
+static inline bool is_mld_query(const struct flow *flow)
+{
+ return is_icmpv6(flow) && flow->tp_src == htons(MLD_QUERY);
+}
+
+static inline bool is_mld_report(const struct flow *flow)
+{
+ return is_mld(flow) && !is_mld_query(flow);
+}
+
+static inline bool is_stp(const struct flow *flow)
+{
+ return (eth_addr_equals(flow->dl_dst, eth_addr_stp)
+ && flow->dl_type == htons(FLOW_DL_TYPE_NONE));
+}
+
#endif /* flow.h */
projects / cascardo / ovs.git / blobdiff