rte_log(RTE_LOG_ ## level, enicpmd_logtype_flow, \
fmt "\n", ##args)
+/*
+ * Common arguments passed to copy_item functions. Use this structure
+ * so we can easily add new arguments.
+ * item: Item specification.
+ * filter: Partially filled in NIC filter structure.
+ * inner_ofst: If zero, this is an outer header. If non-zero, this is
+ * the offset into L5 where the header begins.
+ * l2_proto_off: offset to EtherType eth or vlan header.
+ * l3_proto_off: offset to next protocol field in IPv4 or 6 header.
+ */
+struct copy_item_args {
+ const struct rte_flow_item *item;
+ struct filter_v2 *filter;
+ uint8_t *inner_ofst;
+ uint8_t l2_proto_off;
+ uint8_t l3_proto_off;
+ struct enic *enic;
+};
+
+/* functions for copying items into enic filters */
+typedef int (enic_copy_item_fn)(struct copy_item_args *arg);
+
/** 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);
+ enic_copy_item_fn *copy_item;
/** 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;
+ /* Inner packet version of copy_item. */
+ enic_copy_item_fn *inner_copy_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;
+ /* Max type in the above list, used to detect unsupported types */
+ enum rte_flow_item_type max_item_type;
};
/* 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 */
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 enic_copy_item_fn enic_copy_item_inner_eth_v2;
+static enic_copy_item_fn enic_copy_item_inner_vlan_v2;
+static enic_copy_item_fn enic_copy_item_inner_ipv4_v2;
+static enic_copy_item_fn enic_copy_item_inner_ipv6_v2;
+static enic_copy_item_fn enic_copy_item_inner_udp_v2;
+static enic_copy_item_fn enic_copy_item_inner_tcp_v2;
static copy_action_fn enic_copy_action_v1;
static copy_action_fn enic_copy_action_v2;
.prev_items = (const enum rte_flow_item_type[]) {
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = NULL,
},
[RTE_FLOW_ITEM_TYPE_UDP] = {
.copy_item = enic_copy_item_udp_v1,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = NULL,
},
[RTE_FLOW_ITEM_TYPE_TCP] = {
.copy_item = enic_copy_item_tcp_v1,
RTE_FLOW_ITEM_TYPE_IPV4,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = NULL,
},
};
RTE_FLOW_ITEM_TYPE_VXLAN,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_eth_v2,
},
[RTE_FLOW_ITEM_TYPE_VLAN] = {
.copy_item = enic_copy_item_vlan_v2,
RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_vlan_v2,
},
[RTE_FLOW_ITEM_TYPE_IPV4] = {
.copy_item = enic_copy_item_ipv4_v2,
RTE_FLOW_ITEM_TYPE_VLAN,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_ipv4_v2,
},
[RTE_FLOW_ITEM_TYPE_IPV6] = {
.copy_item = enic_copy_item_ipv6_v2,
RTE_FLOW_ITEM_TYPE_VLAN,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_ipv6_v2,
},
[RTE_FLOW_ITEM_TYPE_UDP] = {
.copy_item = enic_copy_item_udp_v2,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_udp_v2,
},
[RTE_FLOW_ITEM_TYPE_TCP] = {
.copy_item = enic_copy_item_tcp_v2,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_tcp_v2,
},
[RTE_FLOW_ITEM_TYPE_SCTP] = {
.copy_item = enic_copy_item_sctp_v2,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = NULL,
},
[RTE_FLOW_ITEM_TYPE_VXLAN] = {
.copy_item = enic_copy_item_vxlan_v2,
RTE_FLOW_ITEM_TYPE_UDP,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = NULL,
},
};
RTE_FLOW_ITEM_TYPE_VXLAN,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_eth_v2,
},
[RTE_FLOW_ITEM_TYPE_VLAN] = {
.copy_item = enic_copy_item_vlan_v2,
RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_vlan_v2,
},
[RTE_FLOW_ITEM_TYPE_IPV4] = {
.copy_item = enic_copy_item_ipv4_v2,
RTE_FLOW_ITEM_TYPE_VLAN,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_ipv4_v2,
},
[RTE_FLOW_ITEM_TYPE_IPV6] = {
.copy_item = enic_copy_item_ipv6_v2,
RTE_FLOW_ITEM_TYPE_VLAN,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_ipv6_v2,
},
[RTE_FLOW_ITEM_TYPE_UDP] = {
.copy_item = enic_copy_item_udp_v2,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_udp_v2,
},
[RTE_FLOW_ITEM_TYPE_TCP] = {
.copy_item = enic_copy_item_tcp_v2,
RTE_FLOW_ITEM_TYPE_IPV6,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = enic_copy_item_inner_tcp_v2,
},
[RTE_FLOW_ITEM_TYPE_SCTP] = {
.copy_item = enic_copy_item_sctp_v2,
- .valid_start_item = 1,
+ .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,
},
+ .inner_copy_item = NULL,
},
[RTE_FLOW_ITEM_TYPE_VXLAN] = {
.copy_item = enic_copy_item_vxlan_v2,
RTE_FLOW_ITEM_TYPE_UDP,
RTE_FLOW_ITEM_TYPE_END,
},
+ .inner_copy_item = NULL,
},
};
static const struct enic_filter_cap enic_filter_cap[] = {
[FILTER_IPV4_5TUPLE] = {
.item_info = enic_items_v1,
+ .max_item_type = RTE_FLOW_ITEM_TYPE_TCP,
},
[FILTER_USNIC_IP] = {
.item_info = enic_items_v2,
+ .max_item_type = RTE_FLOW_ITEM_TYPE_VXLAN,
},
[FILTER_DPDK_1] = {
.item_info = enic_items_v3,
+ .max_item_type = RTE_FLOW_ITEM_TYPE_VXLAN,
},
};
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)
+enic_copy_item_ipv4_v1(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
FLOW_TRACE();
- if (*inner_ofst)
- return ENOTSUP;
-
if (!mask)
mask = &rte_flow_item_ipv4_mask;
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)
+enic_copy_item_udp_v1(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
FLOW_TRACE();
- if (*inner_ofst)
- return ENOTSUP;
-
if (!mask)
mask = &rte_flow_item_udp_mask;
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)
+enic_copy_item_tcp_v1(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
FLOW_TRACE();
- if (*inner_ofst)
- return ENOTSUP;
-
if (!mask)
mask = &rte_flow_item_tcp_mask;
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.
+/*
+ * The common 'copy' function for all inner packet patterns. Patterns are
+ * first appended to the L5 pattern buffer. Then, since the NIC filter
+ * API has no special support for inner packet matching at the moment,
+ * we set EtherType and IP proto as necessary.
*/
static int
-enic_copy_item_eth_v2(const struct rte_flow_item *item,
- struct filter_v2 *enic_filter, u8 *inner_ofst)
+copy_inner_common(struct filter_generic_1 *gp, uint8_t *inner_ofst,
+ const void *val, const void *mask, uint8_t val_size,
+ uint8_t proto_off, uint16_t proto_val, uint8_t proto_size)
+{
+ uint8_t *l5_mask, *l5_val;
+ uint8_t start_off;
+
+ /* No space left in the L5 pattern buffer. */
+ start_off = *inner_ofst;
+ if ((start_off + val_size) > FILTER_GENERIC_1_KEY_LEN)
+ return ENOTSUP;
+ l5_mask = gp->layer[FILTER_GENERIC_1_L5].mask;
+ l5_val = gp->layer[FILTER_GENERIC_1_L5].val;
+ /* Copy the pattern into the L5 buffer. */
+ if (val) {
+ memcpy(l5_mask + start_off, mask, val_size);
+ memcpy(l5_val + start_off, val, val_size);
+ }
+ /* Set the protocol field in the previous header. */
+ if (proto_off) {
+ void *m, *v;
+
+ m = l5_mask + proto_off;
+ v = l5_val + proto_off;
+ if (proto_size == 1) {
+ *(uint8_t *)m = 0xff;
+ *(uint8_t *)v = (uint8_t)proto_val;
+ } else if (proto_size == 2) {
+ *(uint16_t *)m = 0xffff;
+ *(uint16_t *)v = proto_val;
+ }
+ }
+ /* All inner headers land in L5 buffer even if their spec is null. */
+ *inner_ofst += val_size;
+ return 0;
+}
+
+static int
+enic_copy_item_inner_eth_v2(struct copy_item_args *arg)
+{
+ const void *mask = arg->item->mask;
+ uint8_t *off = arg->inner_ofst;
+
+ FLOW_TRACE();
+ if (!mask)
+ mask = &rte_flow_item_eth_mask;
+ arg->l2_proto_off = *off + offsetof(struct ether_hdr, ether_type);
+ return copy_inner_common(&arg->filter->u.generic_1, off,
+ arg->item->spec, mask, sizeof(struct ether_hdr),
+ 0 /* no previous protocol */, 0, 0);
+}
+
+static int
+enic_copy_item_inner_vlan_v2(struct copy_item_args *arg)
+{
+ const void *mask = arg->item->mask;
+ uint8_t *off = arg->inner_ofst;
+ uint8_t eth_type_off;
+
+ FLOW_TRACE();
+ if (!mask)
+ mask = &rte_flow_item_vlan_mask;
+ /* Append vlan header to L5 and set ether type = TPID */
+ eth_type_off = arg->l2_proto_off;
+ arg->l2_proto_off = *off + offsetof(struct vlan_hdr, eth_proto);
+ return copy_inner_common(&arg->filter->u.generic_1, off,
+ arg->item->spec, mask, sizeof(struct vlan_hdr),
+ eth_type_off, rte_cpu_to_be_16(ETHER_TYPE_VLAN), 2);
+}
+
+static int
+enic_copy_item_inner_ipv4_v2(struct copy_item_args *arg)
+{
+ const void *mask = arg->item->mask;
+ uint8_t *off = arg->inner_ofst;
+
+ FLOW_TRACE();
+ if (!mask)
+ mask = &rte_flow_item_ipv4_mask;
+ /* Append ipv4 header to L5 and set ether type = ipv4 */
+ arg->l3_proto_off = *off + offsetof(struct ipv4_hdr, next_proto_id);
+ return copy_inner_common(&arg->filter->u.generic_1, off,
+ arg->item->spec, mask, sizeof(struct ipv4_hdr),
+ arg->l2_proto_off, rte_cpu_to_be_16(ETHER_TYPE_IPv4), 2);
+}
+
+static int
+enic_copy_item_inner_ipv6_v2(struct copy_item_args *arg)
{
+ const void *mask = arg->item->mask;
+ uint8_t *off = arg->inner_ofst;
+
+ FLOW_TRACE();
+ if (!mask)
+ mask = &rte_flow_item_ipv6_mask;
+ /* Append ipv6 header to L5 and set ether type = ipv6 */
+ arg->l3_proto_off = *off + offsetof(struct ipv6_hdr, proto);
+ return copy_inner_common(&arg->filter->u.generic_1, off,
+ arg->item->spec, mask, sizeof(struct ipv6_hdr),
+ arg->l2_proto_off, rte_cpu_to_be_16(ETHER_TYPE_IPv6), 2);
+}
+
+static int
+enic_copy_item_inner_udp_v2(struct copy_item_args *arg)
+{
+ const void *mask = arg->item->mask;
+ uint8_t *off = arg->inner_ofst;
+
+ FLOW_TRACE();
+ if (!mask)
+ mask = &rte_flow_item_udp_mask;
+ /* Append udp header to L5 and set ip proto = udp */
+ return copy_inner_common(&arg->filter->u.generic_1, off,
+ arg->item->spec, mask, sizeof(struct udp_hdr),
+ arg->l3_proto_off, IPPROTO_UDP, 1);
+}
+
+static int
+enic_copy_item_inner_tcp_v2(struct copy_item_args *arg)
+{
+ const void *mask = arg->item->mask;
+ uint8_t *off = arg->inner_ofst;
+
+ FLOW_TRACE();
+ if (!mask)
+ mask = &rte_flow_item_tcp_mask;
+ /* Append tcp header to L5 and set ip proto = tcp */
+ return copy_inner_common(&arg->filter->u.generic_1, off,
+ arg->item->spec, mask, sizeof(struct tcp_hdr),
+ arg->l3_proto_off, IPPROTO_TCP, 1);
+}
+
+static int
+enic_copy_item_eth_v2(struct copy_item_args *arg)
+{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
struct ether_hdr enic_spec;
struct ether_hdr enic_mask;
const struct rte_flow_item_eth *spec = item->spec;
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);
- }
+ /* 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));
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)
+enic_copy_item_vlan_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
+ struct ether_hdr *eth_mask;
+ struct ether_hdr *eth_val;
FLOW_TRACE();
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;
+ eth_mask = (void *)gp->layer[FILTER_GENERIC_1_L2].mask;
+ eth_val = (void *)gp->layer[FILTER_GENERIC_1_L2].val;
+ /* Outer TPID cannot be matched */
+ if (eth_mask->ether_type)
+ return ENOTSUP;
+ /*
+ * For recent models:
+ * When packet matching, the VIC always compares vlan-stripped
+ * L2, regardless of vlan stripping settings. So, the inner type
+ * from vlan becomes the ether type of the eth header.
+ *
+ * Older models w/o hardware vxlan parser have a different
+ * behavior when vlan stripping is disabled. In this case,
+ * vlan tag remains in the L2 buffer.
+ */
+ if (!arg->enic->vxlan && !arg->enic->ig_vlan_strip_en) {
+ struct vlan_hdr *vlan;
- /* Outer TPID cannot be matched */
- if (eth_mask->ether_type)
- return ENOTSUP;
+ vlan = (struct vlan_hdr *)(eth_mask + 1);
+ vlan->eth_proto = mask->inner_type;
+ vlan = (struct vlan_hdr *)(eth_val + 1);
+ vlan->eth_proto = spec->inner_type;
+ } else {
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);
}
+ /* For TCI, use the vlan mask/val fields (little endian). */
+ gp->mask_vlan = rte_be_to_cpu_16(mask->tci);
+ gp->val_vlan = rte_be_to_cpu_16(spec->tci);
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)
+enic_copy_item_ipv4_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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 IPv4 */
+ gp->mask_flags |= FILTER_GENERIC_1_IPV4;
+ gp->val_flags |= FILTER_GENERIC_1_IPV4;
- /* Match all if no spec */
- if (!spec)
- return 0;
+ /* Match all if no spec */
+ if (!spec)
+ return 0;
- if (!mask)
- mask = &rte_flow_item_ipv4_mask;
+ 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);
- }
+ 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));
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)
+enic_copy_item_ipv6_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
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);
- }
+ 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));
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)
+enic_copy_item_udp_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
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);
- }
+ 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));
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)
+enic_copy_item_tcp_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
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);
- }
+ 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));
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)
+enic_copy_item_sctp_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
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;
+ uint8_t *ip_proto_mask = NULL;
+ uint8_t *ip_proto = NULL;
FLOW_TRACE();
- if (*inner_ofst)
- return ENOTSUP;
+ /*
+ * The NIC filter API has no flags for "match sctp", so explicitly set
+ * the protocol number in the IP pattern.
+ */
+ if (gp->val_flags & FILTER_GENERIC_1_IPV4) {
+ struct ipv4_hdr *ip;
+ ip = (struct ipv4_hdr *)gp->layer[FILTER_GENERIC_1_L3].mask;
+ ip_proto_mask = &ip->next_proto_id;
+ ip = (struct ipv4_hdr *)gp->layer[FILTER_GENERIC_1_L3].val;
+ ip_proto = &ip->next_proto_id;
+ } else if (gp->val_flags & FILTER_GENERIC_1_IPV6) {
+ struct ipv6_hdr *ip;
+ ip = (struct ipv6_hdr *)gp->layer[FILTER_GENERIC_1_L3].mask;
+ ip_proto_mask = &ip->proto;
+ ip = (struct ipv6_hdr *)gp->layer[FILTER_GENERIC_1_L3].val;
+ ip_proto = &ip->proto;
+ } else {
+ /* Need IPv4/IPv6 pattern first */
+ return EINVAL;
+ }
+ *ip_proto = IPPROTO_SCTP;
+ *ip_proto_mask = 0xff;
/* Match all if no spec */
if (!spec)
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)
+enic_copy_item_vxlan_v2(struct copy_item_args *arg)
{
+ const struct rte_flow_item *item = arg->item;
+ struct filter_v2 *enic_filter = arg->filter;
+ uint8_t *inner_ofst = arg->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;
+ struct udp_hdr *udp;
FLOW_TRACE();
- if (*inner_ofst)
- return EINVAL;
-
+ /*
+ * The NIC filter API has no flags for "match vxlan". Set UDP port to
+ * avoid false positives.
+ */
+ gp->mask_flags |= FILTER_GENERIC_1_UDP;
+ gp->val_flags |= FILTER_GENERIC_1_UDP;
+ udp = (struct udp_hdr *)gp->layer[FILTER_GENERIC_1_L4].mask;
+ udp->dst_port = 0xffff;
+ udp = (struct udp_hdr *)gp->layer[FILTER_GENERIC_1_L4].val;
+ udp->dst_port = RTE_BE16(4789);
/* Match all if no spec */
if (!spec)
return 0;
return 0;
}
+/*
+ * Fix up the L5 layer.. HW vxlan parsing removes vxlan header from L5.
+ * Instead it is in L4 following the UDP header. Append the vxlan
+ * pattern to L4 (udp) and shift any inner packet pattern in L5.
+ */
+static void
+fixup_l5_layer(struct enic *enic, struct filter_generic_1 *gp,
+ uint8_t inner_ofst)
+{
+ uint8_t layer[FILTER_GENERIC_1_KEY_LEN];
+ uint8_t inner;
+ uint8_t vxlan;
+
+ if (!(inner_ofst > 0 && enic->vxlan))
+ return;
+ FLOW_TRACE();
+ vxlan = sizeof(struct vxlan_hdr);
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].mask + sizeof(struct udp_hdr),
+ gp->layer[FILTER_GENERIC_1_L5].mask, vxlan);
+ memcpy(gp->layer[FILTER_GENERIC_1_L4].val + sizeof(struct udp_hdr),
+ gp->layer[FILTER_GENERIC_1_L5].val, vxlan);
+ inner = inner_ofst - vxlan;
+ memset(layer, 0, sizeof(layer));
+ memcpy(layer, gp->layer[FILTER_GENERIC_1_L5].mask + vxlan, inner);
+ memcpy(gp->layer[FILTER_GENERIC_1_L5].mask, layer, sizeof(layer));
+ memset(layer, 0, sizeof(layer));
+ memcpy(layer, gp->layer[FILTER_GENERIC_1_L5].val + vxlan, inner);
+ memcpy(gp->layer[FILTER_GENERIC_1_L5].val, layer, sizeof(layer));
+}
+
/**
* Build the intenal enic filter structure from the provided pattern. The
* pattern is validated as the items are copied.
*/
static int
enic_copy_filter(const struct rte_flow_item pattern[],
- const struct enic_items *items_info,
+ const struct enic_filter_cap *cap,
+ struct enic *enic,
struct filter_v2 *enic_filter,
struct rte_flow_error *error)
{
u8 inner_ofst = 0; /* If encapsulated, ofst into L5 */
enum rte_flow_item_type prev_item;
const struct enic_items *item_info;
-
+ struct copy_item_args args;
+ enic_copy_item_fn *copy_fn;
u8 is_first_item = 1;
FLOW_TRACE();
prev_item = 0;
+ args.filter = enic_filter;
+ args.inner_ofst = &inner_ofst;
+ args.enic = enic;
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];
+ item_info = &cap->item_info[item->type];
+ if (item->type > cap->max_item_type ||
+ item_info->copy_item == NULL ||
+ (inner_ofst > 0 && item_info->inner_copy_item == NULL)) {
+ rte_flow_error_set(error, ENOTSUP,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ NULL, "Unsupported item.");
+ return -rte_errno;
+ }
/* 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);
+ args.item = item;
+ copy_fn = inner_ofst > 0 ? item_info->inner_copy_item :
+ item_info->copy_item;
+ ret = copy_fn(&args);
if (ret)
goto item_not_supported;
prev_item = item->type;
is_first_item = 0;
}
+ fixup_l5_layer(enic, &enic_filter->u.generic_1, inner_ofst);
+
return 0;
item_not_supported:
if (overlap & MARK)
return ENOTSUP;
overlap |= MARK;
- /* ENIC_MAGIC_FILTER_ID is reserved and is the highest
- * in the range of allows mark ids.
+ /*
+ * Map mark ID (32-bit) to filter ID (16-bit):
+ * - Reject values > 16 bits
+ * - Filter ID 0 is reserved for filters that steer
+ * but not mark. So add 1 to the mark ID to avoid
+ * using 0.
+ * - Filter ID (ENIC_MAGIC_FILTER_ID = 0xffff) is
+ * reserved for the "flag" action below.
*/
- if (mark->id >= ENIC_MAGIC_FILTER_ID)
+ if (mark->id >= ENIC_MAGIC_FILTER_ID - 1)
return EINVAL;
- enic_action->filter_id = mark->id;
+ enic_action->filter_id = mark->id + 1;
enic_action->flags |= FILTER_ACTION_FILTER_ID_FLAG;
break;
}
if (overlap & MARK)
return ENOTSUP;
overlap |= MARK;
+ /* ENIC_MAGIC_FILTER_ID is reserved for flagging */
enic_action->filter_id = ENIC_MAGIC_FILTER_ID;
enic_action->flags |= FILTER_ACTION_FILTER_ID_FLAG;
break;
return -rte_errno;
}
enic_filter->type = enic->flow_filter_mode;
- ret = enic_copy_filter(pattern, enic_filter_cap->item_info,
+ ret = enic_copy_filter(pattern, enic_filter_cap, enic,
enic_filter, error);
return ret;
}
Code Review / deb_dpdk.git / blobdiff