+/* Generic flow management functions. */
+
+/** Generate flow_item[] entry. */
+#define MK_FLOW_ITEM(t, s) \
+ [RTE_FLOW_ITEM_TYPE_ ## t] = { \
+ .name = # t, \
+ .size = s, \
+ }
+
+/** Information about known flow pattern items. */
+static const struct {
+ const char *name;
+ size_t size;
+} flow_item[] = {
+ MK_FLOW_ITEM(END, 0),
+ MK_FLOW_ITEM(VOID, 0),
+ MK_FLOW_ITEM(INVERT, 0),
+ MK_FLOW_ITEM(ANY, sizeof(struct rte_flow_item_any)),
+ MK_FLOW_ITEM(PF, 0),
+ MK_FLOW_ITEM(VF, sizeof(struct rte_flow_item_vf)),
+ MK_FLOW_ITEM(PHY_PORT, sizeof(struct rte_flow_item_phy_port)),
+ MK_FLOW_ITEM(PORT_ID, sizeof(struct rte_flow_item_port_id)),
+ MK_FLOW_ITEM(RAW, sizeof(struct rte_flow_item_raw)),
+ MK_FLOW_ITEM(ETH, sizeof(struct rte_flow_item_eth)),
+ MK_FLOW_ITEM(VLAN, sizeof(struct rte_flow_item_vlan)),
+ MK_FLOW_ITEM(IPV4, sizeof(struct rte_flow_item_ipv4)),
+ MK_FLOW_ITEM(IPV6, sizeof(struct rte_flow_item_ipv6)),
+ MK_FLOW_ITEM(ICMP, sizeof(struct rte_flow_item_icmp)),
+ MK_FLOW_ITEM(UDP, sizeof(struct rte_flow_item_udp)),
+ MK_FLOW_ITEM(TCP, sizeof(struct rte_flow_item_tcp)),
+ MK_FLOW_ITEM(SCTP, sizeof(struct rte_flow_item_sctp)),
+ MK_FLOW_ITEM(VXLAN, sizeof(struct rte_flow_item_vxlan)),
+ MK_FLOW_ITEM(E_TAG, sizeof(struct rte_flow_item_e_tag)),
+ MK_FLOW_ITEM(NVGRE, sizeof(struct rte_flow_item_nvgre)),
+ MK_FLOW_ITEM(MPLS, sizeof(struct rte_flow_item_mpls)),
+ MK_FLOW_ITEM(GRE, sizeof(struct rte_flow_item_gre)),
+ MK_FLOW_ITEM(FUZZY, sizeof(struct rte_flow_item_fuzzy)),
+ MK_FLOW_ITEM(GTP, sizeof(struct rte_flow_item_gtp)),
+ MK_FLOW_ITEM(GTPC, sizeof(struct rte_flow_item_gtp)),
+ MK_FLOW_ITEM(GTPU, sizeof(struct rte_flow_item_gtp)),
+ MK_FLOW_ITEM(GENEVE, sizeof(struct rte_flow_item_geneve)),
+ MK_FLOW_ITEM(VXLAN_GPE, sizeof(struct rte_flow_item_vxlan_gpe)),
+ MK_FLOW_ITEM(ARP_ETH_IPV4, sizeof(struct rte_flow_item_arp_eth_ipv4)),
+ MK_FLOW_ITEM(IPV6_EXT, sizeof(struct rte_flow_item_ipv6_ext)),
+ MK_FLOW_ITEM(ICMP6, sizeof(struct rte_flow_item_icmp6)),
+ MK_FLOW_ITEM(ICMP6_ND_NS, sizeof(struct rte_flow_item_icmp6_nd_ns)),
+ MK_FLOW_ITEM(ICMP6_ND_NA, sizeof(struct rte_flow_item_icmp6_nd_na)),
+ MK_FLOW_ITEM(ICMP6_ND_OPT, sizeof(struct rte_flow_item_icmp6_nd_opt)),
+ MK_FLOW_ITEM(ICMP6_ND_OPT_SLA_ETH,
+ sizeof(struct rte_flow_item_icmp6_nd_opt_sla_eth)),
+ MK_FLOW_ITEM(ICMP6_ND_OPT_TLA_ETH,
+ sizeof(struct rte_flow_item_icmp6_nd_opt_tla_eth)),
+};
+
+/** Pattern item specification types. */
+enum item_spec_type {
+ ITEM_SPEC,
+ ITEM_LAST,
+ ITEM_MASK,
+};
+
+/** Compute storage space needed by item specification and copy it. */
+static size_t
+flow_item_spec_copy(void *buf, const struct rte_flow_item *item,
+ enum item_spec_type type)
+{
+ size_t size = 0;
+ const void *data =
+ type == ITEM_SPEC ? item->spec :
+ type == ITEM_LAST ? item->last :
+ type == ITEM_MASK ? item->mask :
+ NULL;
+
+ if (!item->spec || !data)
+ goto empty;
+ switch (item->type) {
+ union {
+ const struct rte_flow_item_raw *raw;
+ } spec;
+ union {
+ const struct rte_flow_item_raw *raw;
+ } last;
+ union {
+ const struct rte_flow_item_raw *raw;
+ } mask;
+ union {
+ const struct rte_flow_item_raw *raw;
+ } src;
+ union {
+ struct rte_flow_item_raw *raw;
+ } dst;
+ size_t off;
+
+ case RTE_FLOW_ITEM_TYPE_RAW:
+ spec.raw = item->spec;
+ last.raw = item->last ? item->last : item->spec;
+ mask.raw = item->mask ? item->mask : &rte_flow_item_raw_mask;
+ src.raw = data;
+ dst.raw = buf;
+ off = RTE_ALIGN_CEIL(sizeof(struct rte_flow_item_raw),
+ sizeof(*src.raw->pattern));
+ if (type == ITEM_SPEC ||
+ (type == ITEM_MASK &&
+ ((spec.raw->length & mask.raw->length) >=
+ (last.raw->length & mask.raw->length))))
+ size = spec.raw->length & mask.raw->length;
+ else
+ size = last.raw->length & mask.raw->length;
+ size = off + size * sizeof(*src.raw->pattern);
+ if (dst.raw) {
+ memcpy(dst.raw, src.raw, sizeof(*src.raw));
+ dst.raw->pattern = memcpy((uint8_t *)dst.raw + off,
+ src.raw->pattern,
+ size - off);
+ }
+ break;
+ default:
+ size = flow_item[item->type].size;
+ if (buf)
+ memcpy(buf, data, size);
+ break;
+ }
+empty:
+ return RTE_ALIGN_CEIL(size, sizeof(double));
+}
+
+/** Generate flow_action[] entry. */
+#define MK_FLOW_ACTION(t, s) \
+ [RTE_FLOW_ACTION_TYPE_ ## t] = { \
+ .name = # t, \
+ .size = s, \
+ }
+
+/** Information about known flow actions. */
+static const struct {
+ const char *name;
+ size_t size;
+} flow_action[] = {
+ MK_FLOW_ACTION(END, 0),
+ MK_FLOW_ACTION(VOID, 0),
+ MK_FLOW_ACTION(PASSTHRU, 0),
+ MK_FLOW_ACTION(MARK, sizeof(struct rte_flow_action_mark)),
+ MK_FLOW_ACTION(FLAG, 0),
+ MK_FLOW_ACTION(QUEUE, sizeof(struct rte_flow_action_queue)),
+ MK_FLOW_ACTION(DROP, 0),
+ MK_FLOW_ACTION(COUNT, sizeof(struct rte_flow_action_count)),
+ MK_FLOW_ACTION(RSS, sizeof(struct rte_flow_action_rss)),
+ MK_FLOW_ACTION(PF, 0),
+ MK_FLOW_ACTION(VF, sizeof(struct rte_flow_action_vf)),
+ MK_FLOW_ACTION(PHY_PORT, sizeof(struct rte_flow_action_phy_port)),
+ MK_FLOW_ACTION(PORT_ID, sizeof(struct rte_flow_action_port_id)),
+ MK_FLOW_ACTION(METER, sizeof(struct rte_flow_action_meter)),
+ MK_FLOW_ACTION(OF_SET_MPLS_TTL,
+ sizeof(struct rte_flow_action_of_set_mpls_ttl)),
+ MK_FLOW_ACTION(OF_DEC_MPLS_TTL, 0),
+ MK_FLOW_ACTION(OF_SET_NW_TTL,
+ sizeof(struct rte_flow_action_of_set_nw_ttl)),
+ MK_FLOW_ACTION(OF_DEC_NW_TTL, 0),
+ MK_FLOW_ACTION(OF_COPY_TTL_OUT, 0),
+ MK_FLOW_ACTION(OF_COPY_TTL_IN, 0),
+ MK_FLOW_ACTION(OF_POP_VLAN, 0),
+ MK_FLOW_ACTION(OF_PUSH_VLAN,
+ sizeof(struct rte_flow_action_of_push_vlan)),
+ MK_FLOW_ACTION(OF_SET_VLAN_VID,
+ sizeof(struct rte_flow_action_of_set_vlan_vid)),
+ MK_FLOW_ACTION(OF_SET_VLAN_PCP,
+ sizeof(struct rte_flow_action_of_set_vlan_pcp)),
+ MK_FLOW_ACTION(OF_POP_MPLS,
+ sizeof(struct rte_flow_action_of_pop_mpls)),
+ MK_FLOW_ACTION(OF_PUSH_MPLS,
+ sizeof(struct rte_flow_action_of_push_mpls)),
+};
+
+/** Compute storage space needed by action configuration and copy it. */
+static size_t
+flow_action_conf_copy(void *buf, const struct rte_flow_action *action)
+{
+ size_t size = 0;
+
+ if (!action->conf)
+ goto empty;
+ switch (action->type) {
+ union {
+ const struct rte_flow_action_rss *rss;
+ } src;
+ union {
+ struct rte_flow_action_rss *rss;
+ } dst;
+ size_t off;
+
+ case RTE_FLOW_ACTION_TYPE_RSS:
+ src.rss = action->conf;
+ dst.rss = buf;
+ off = 0;
+ if (dst.rss)
+ *dst.rss = (struct rte_flow_action_rss){
+ .func = src.rss->func,
+ .level = src.rss->level,
+ .types = src.rss->types,
+ .key_len = src.rss->key_len,
+ .queue_num = src.rss->queue_num,
+ };
+ off += sizeof(*src.rss);
+ if (src.rss->key_len) {
+ off = RTE_ALIGN_CEIL(off, sizeof(double));
+ size = sizeof(*src.rss->key) * src.rss->key_len;
+ if (dst.rss)
+ dst.rss->key = memcpy
+ ((void *)((uintptr_t)dst.rss + off),
+ src.rss->key, size);
+ off += size;
+ }
+ if (src.rss->queue_num) {
+ off = RTE_ALIGN_CEIL(off, sizeof(double));
+ size = sizeof(*src.rss->queue) * src.rss->queue_num;
+ if (dst.rss)
+ dst.rss->queue = memcpy
+ ((void *)((uintptr_t)dst.rss + off),
+ src.rss->queue, size);
+ off += size;
+ }
+ size = off;
+ break;
+ default:
+ size = flow_action[action->type].size;
+ if (buf)
+ memcpy(buf, action->conf, size);
+ break;
+ }
+empty:
+ return RTE_ALIGN_CEIL(size, sizeof(double));
+}
+
+/** Generate a port_flow entry from attributes/pattern/actions. */
+static struct port_flow *
+port_flow_new(const struct rte_flow_attr *attr,
+ const struct rte_flow_item *pattern,
+ const struct rte_flow_action *actions)
+{
+ const struct rte_flow_item *item;
+ const struct rte_flow_action *action;
+ struct port_flow *pf = NULL;
+ size_t tmp;
+ size_t off1 = 0;
+ size_t off2 = 0;
+ int err = ENOTSUP;
+
+store:
+ item = pattern;
+ if (pf)
+ pf->pattern = (void *)&pf->data[off1];
+ do {
+ struct rte_flow_item *dst = NULL;
+
+ if ((unsigned int)item->type >= RTE_DIM(flow_item) ||
+ !flow_item[item->type].name)
+ goto notsup;
+ if (pf)
+ dst = memcpy(pf->data + off1, item, sizeof(*item));
+ off1 += sizeof(*item);
+ if (item->spec) {
+ if (pf)
+ dst->spec = pf->data + off2;
+ off2 += flow_item_spec_copy
+ (pf ? pf->data + off2 : NULL, item, ITEM_SPEC);
+ }
+ if (item->last) {
+ if (pf)
+ dst->last = pf->data + off2;
+ off2 += flow_item_spec_copy
+ (pf ? pf->data + off2 : NULL, item, ITEM_LAST);
+ }
+ if (item->mask) {
+ if (pf)
+ dst->mask = pf->data + off2;
+ off2 += flow_item_spec_copy
+ (pf ? pf->data + off2 : NULL, item, ITEM_MASK);
+ }
+ off2 = RTE_ALIGN_CEIL(off2, sizeof(double));
+ } while ((item++)->type != RTE_FLOW_ITEM_TYPE_END);
+ off1 = RTE_ALIGN_CEIL(off1, sizeof(double));
+ action = actions;
+ if (pf)
+ pf->actions = (void *)&pf->data[off1];
+ do {
+ struct rte_flow_action *dst = NULL;
+
+ if ((unsigned int)action->type >= RTE_DIM(flow_action) ||
+ !flow_action[action->type].name)
+ goto notsup;
+ if (pf)
+ dst = memcpy(pf->data + off1, action, sizeof(*action));
+ off1 += sizeof(*action);
+ if (action->conf) {
+ if (pf)
+ dst->conf = pf->data + off2;
+ off2 += flow_action_conf_copy
+ (pf ? pf->data + off2 : NULL, action);
+ }
+ off2 = RTE_ALIGN_CEIL(off2, sizeof(double));
+ } while ((action++)->type != RTE_FLOW_ACTION_TYPE_END);
+ if (pf != NULL)
+ return pf;
+ off1 = RTE_ALIGN_CEIL(off1, sizeof(double));
+ tmp = RTE_ALIGN_CEIL(offsetof(struct port_flow, data), sizeof(double));
+ pf = calloc(1, tmp + off1 + off2);
+ if (pf == NULL)
+ err = errno;
+ else {
+ *pf = (const struct port_flow){
+ .size = tmp + off1 + off2,
+ .attr = *attr,
+ };
+ tmp -= offsetof(struct port_flow, data);
+ off2 = tmp + off1;
+ off1 = tmp;
+ goto store;
+ }
+notsup:
+ rte_errno = err;
+ return NULL;