/*-
+ * BSD LICENSE
+ *
* Copyright (c) 2017 Solarflare Communications Inc.
* All rights reserved.
*
SFC_FLOW_ITEM_START_LAYER,
SFC_FLOW_ITEM_L2,
SFC_FLOW_ITEM_L3,
+ SFC_FLOW_ITEM_L4,
};
typedef int (sfc_flow_item_parse)(const struct rte_flow_item *item,
static sfc_flow_item_parse sfc_flow_parse_vlan;
static sfc_flow_item_parse sfc_flow_parse_ipv4;
static sfc_flow_item_parse sfc_flow_parse_ipv6;
+static sfc_flow_item_parse sfc_flow_parse_tcp;
+static sfc_flow_item_parse sfc_flow_parse_udp;
static boolean_t
sfc_flow_is_zero(const uint8_t *buf, unsigned int size)
*
* @param item[in]
* Item specification. Only source and destination addresses and
- * Ethernet type fields are supported. If the mask is NULL, default
- * mask will be used. Ranging is not supported.
+ * Ethernet type fields are supported. In addition to full and
+ * empty masks of destination address, individual/group mask is
+ * also supported. If the mask is NULL, default mask will be used.
+ * Ranging is not supported.
* @param efx_spec[in, out]
* EFX filter specification to update.
* @param[out] error
.src.addr_bytes = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff },
.type = 0xffff,
};
+ const uint8_t ig_mask[EFX_MAC_ADDR_LEN] = {
+ 0x01, 0x00, 0x00, 0x00, 0x00, 0x00
+ };
rc = sfc_flow_parse_init(item,
(const void **)&spec,
efx_spec->efs_match_flags |= EFX_FILTER_MATCH_LOC_MAC;
rte_memcpy(efx_spec->efs_loc_mac, spec->dst.addr_bytes,
EFX_MAC_ADDR_LEN);
+ } else if (memcmp(mask->dst.addr_bytes, ig_mask,
+ EFX_MAC_ADDR_LEN) == 0) {
+ if (is_unicast_ether_addr(&spec->dst))
+ efx_spec->efs_match_flags |=
+ EFX_FILTER_MATCH_UNKNOWN_UCAST_DST;
+ else
+ efx_spec->efs_match_flags |=
+ EFX_FILTER_MATCH_UNKNOWN_MCAST_DST;
} else if (!is_zero_ether_addr(&mask->dst)) {
goto fail_bad_mask;
}
return -rte_errno;
}
+/**
+ * Convert TCP item to EFX filter specification.
+ *
+ * @param item[in]
+ * Item specification. Only source and destination ports fields
+ * are supported. If the mask is NULL, default mask will be used.
+ * Ranging is not supported.
+ * @param efx_spec[in, out]
+ * EFX filter specification to update.
+ * @param[out] error
+ * Perform verbose error reporting if not NULL.
+ */
+static int
+sfc_flow_parse_tcp(const struct rte_flow_item *item,
+ efx_filter_spec_t *efx_spec,
+ struct rte_flow_error *error)
+{
+ int rc;
+ const struct rte_flow_item_tcp *spec = NULL;
+ const struct rte_flow_item_tcp *mask = NULL;
+ const struct rte_flow_item_tcp supp_mask = {
+ .hdr = {
+ .src_port = 0xffff,
+ .dst_port = 0xffff,
+ }
+ };
+
+ rc = sfc_flow_parse_init(item,
+ (const void **)&spec,
+ (const void **)&mask,
+ &supp_mask,
+ &rte_flow_item_tcp_mask,
+ sizeof(struct rte_flow_item_tcp),
+ error);
+ if (rc != 0)
+ return rc;
+
+ /*
+ * Filtering by TCP source and destination ports requires
+ * the appropriate IP_PROTO in hardware filters
+ */
+ if (!(efx_spec->efs_match_flags & EFX_FILTER_MATCH_IP_PROTO)) {
+ efx_spec->efs_match_flags |= EFX_FILTER_MATCH_IP_PROTO;
+ efx_spec->efs_ip_proto = EFX_IPPROTO_TCP;
+ } else if (efx_spec->efs_ip_proto != EFX_IPPROTO_TCP) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM, item,
+ "IP proto in pattern with TCP item should be appropriate");
+ return -rte_errno;
+ }
+
+ if (spec == NULL)
+ return 0;
+
+ /*
+ * Source and destination ports are in big-endian byte order in item and
+ * in little-endian in efx_spec, so byte swap is used
+ */
+ if (mask->hdr.src_port == supp_mask.hdr.src_port) {
+ efx_spec->efs_match_flags |= EFX_FILTER_MATCH_REM_PORT;
+ efx_spec->efs_rem_port = rte_bswap16(spec->hdr.src_port);
+ } else if (mask->hdr.src_port != 0) {
+ goto fail_bad_mask;
+ }
+
+ if (mask->hdr.dst_port == supp_mask.hdr.dst_port) {
+ efx_spec->efs_match_flags |= EFX_FILTER_MATCH_LOC_PORT;
+ efx_spec->efs_loc_port = rte_bswap16(spec->hdr.dst_port);
+ } else if (mask->hdr.dst_port != 0) {
+ goto fail_bad_mask;
+ }
+
+ return 0;
+
+fail_bad_mask:
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM, item,
+ "Bad mask in the TCP pattern item");
+ return -rte_errno;
+}
+
+/**
+ * Convert UDP item to EFX filter specification.
+ *
+ * @param item[in]
+ * Item specification. Only source and destination ports fields
+ * are supported. If the mask is NULL, default mask will be used.
+ * Ranging is not supported.
+ * @param efx_spec[in, out]
+ * EFX filter specification to update.
+ * @param[out] error
+ * Perform verbose error reporting if not NULL.
+ */
+static int
+sfc_flow_parse_udp(const struct rte_flow_item *item,
+ efx_filter_spec_t *efx_spec,
+ struct rte_flow_error *error)
+{
+ int rc;
+ const struct rte_flow_item_udp *spec = NULL;
+ const struct rte_flow_item_udp *mask = NULL;
+ const struct rte_flow_item_udp supp_mask = {
+ .hdr = {
+ .src_port = 0xffff,
+ .dst_port = 0xffff,
+ }
+ };
+
+ rc = sfc_flow_parse_init(item,
+ (const void **)&spec,
+ (const void **)&mask,
+ &supp_mask,
+ &rte_flow_item_udp_mask,
+ sizeof(struct rte_flow_item_udp),
+ error);
+ if (rc != 0)
+ return rc;
+
+ /*
+ * Filtering by UDP source and destination ports requires
+ * the appropriate IP_PROTO in hardware filters
+ */
+ if (!(efx_spec->efs_match_flags & EFX_FILTER_MATCH_IP_PROTO)) {
+ efx_spec->efs_match_flags |= EFX_FILTER_MATCH_IP_PROTO;
+ efx_spec->efs_ip_proto = EFX_IPPROTO_UDP;
+ } else if (efx_spec->efs_ip_proto != EFX_IPPROTO_UDP) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM, item,
+ "IP proto in pattern with UDP item should be appropriate");
+ return -rte_errno;
+ }
+
+ if (spec == NULL)
+ return 0;
+
+ /*
+ * Source and destination ports are in big-endian byte order in item and
+ * in little-endian in efx_spec, so byte swap is used
+ */
+ if (mask->hdr.src_port == supp_mask.hdr.src_port) {
+ efx_spec->efs_match_flags |= EFX_FILTER_MATCH_REM_PORT;
+ efx_spec->efs_rem_port = rte_bswap16(spec->hdr.src_port);
+ } else if (mask->hdr.src_port != 0) {
+ goto fail_bad_mask;
+ }
+
+ if (mask->hdr.dst_port == supp_mask.hdr.dst_port) {
+ efx_spec->efs_match_flags |= EFX_FILTER_MATCH_LOC_PORT;
+ efx_spec->efs_loc_port = rte_bswap16(spec->hdr.dst_port);
+ } else if (mask->hdr.dst_port != 0) {
+ goto fail_bad_mask;
+ }
+
+ return 0;
+
+fail_bad_mask:
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM, item,
+ "Bad mask in the UDP pattern item");
+ return -rte_errno;
+}
+
static const struct sfc_flow_item sfc_flow_items[] = {
{
.type = RTE_FLOW_ITEM_TYPE_VOID,
.layer = SFC_FLOW_ITEM_L3,
.parse = sfc_flow_parse_ipv6,
},
+ {
+ .type = RTE_FLOW_ITEM_TYPE_TCP,
+ .prev_layer = SFC_FLOW_ITEM_L3,
+ .layer = SFC_FLOW_ITEM_L4,
+ .parse = sfc_flow_parse_tcp,
+ },
+ {
+ .type = RTE_FLOW_ITEM_TYPE_UDP,
+ .prev_layer = SFC_FLOW_ITEM_L3,
+ .layer = SFC_FLOW_ITEM_L4,
+ .parse = sfc_flow_parse_udp,
+ },
};
/*
return -rte_errno;
}
- for (; pattern != NULL &&
- pattern->type != RTE_FLOW_ITEM_TYPE_END; pattern++) {
+ for (; pattern->type != RTE_FLOW_ITEM_TYPE_END; pattern++) {
item = sfc_flow_get_item(pattern->type);
if (item == NULL) {
rte_flow_error_set(error, ENOTSUP,
prev_layer = item->layer;
}
- if (pattern == NULL) {
- rte_flow_error_set(error, EINVAL,
- RTE_FLOW_ERROR_TYPE_ITEM, NULL,
- "NULL item");
- return -rte_errno;
- }
-
return 0;
}
git.droids-corp.org / dpdk.git / blobdiff