[dpdk-dev] [PATCH 5/7] net/i40e: add FDIR support for GTP-C and GTP-U
Beilei Xing
beilei.xing at intel.com
Fri Aug 25 09:50:28 CEST 2017
This patch adds FDIR support for GTP-C and GTP-U.
Signed-off-by: Beilei Xing <beilei.xing at intel.com>
---
drivers/net/i40e/i40e_ethdev.c | 2 ++
drivers/net/i40e/i40e_ethdev.h | 9 ++++++++
drivers/net/i40e/i40e_fdir.c | 42 ++++++++++++++++++++++++++++++++++--
drivers/net/i40e/i40e_flow.c | 48 +++++++++++++++++++++++++++++++++++++++++-
4 files changed, 98 insertions(+), 3 deletions(-)
diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 7c9e5af..d7ef782 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -8228,6 +8228,8 @@ i40e_get_valid_input_set(enum i40e_filter_pctype pctype,
[I40E_FILTER_PCTYPE_L2_PAYLOAD] =
I40E_INSET_VLAN_OUTER | I40E_INSET_VLAN_INNER |
I40E_INSET_LAST_ETHER_TYPE,
+ [I40E_FILTER_PCTYPE_GTPC] = I40E_INSET_GTP_TEID,
+ [I40E_FILTER_PCTYPE_GTPU] = I40E_INSET_GTP_TEID,
};
if (pctype > I40E_FILTER_PCTYPE_L2_PAYLOAD)
diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index 6d871e4..1681bad 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -467,6 +467,14 @@ struct i40e_vmdq_info {
#define I40E_FDIR_IPv6_TC_OFFSET 20
/**
+ * A structure used to define the input for IPV4 GTP flow
+ */
+struct i40e_gtpv4_flow {
+ struct rte_eth_udpv4_flow udp; /**< IPv4 UDP fields to match. */
+ uint32_t teid; /**< TEID in big endian. */
+};
+
+/**
* A union contains the inputs for all types of flow
* Items in flows need to be in big endian
*/
@@ -480,6 +488,7 @@ union i40e_fdir_flow {
struct rte_eth_tcpv6_flow tcp6_flow;
struct rte_eth_sctpv6_flow sctp6_flow;
struct rte_eth_ipv6_flow ipv6_flow;
+ struct i40e_gtpv4_flow gtpv4_flow;
};
/**
diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index b0ba819..707ab4d 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -71,6 +71,7 @@
#define I40E_FDIR_IPv6_DEFAULT_HOP_LIMITS 0xFF
#define I40E_FDIR_IPv6_PAYLOAD_LEN 380
#define I40E_FDIR_UDP_DEFAULT_LEN 400
+#define I40E_FDIR_GTP_DEFAULT_LEN 384
/* Wait time for fdir filter programming */
#define I40E_FDIR_MAX_WAIT_US 10000
@@ -949,6 +950,7 @@ i40e_flow_fdir_fill_eth_ip_head(const struct i40e_fdir_input *fdir_input,
uint8_t len = 2 * sizeof(struct ether_addr);
struct ipv4_hdr *ip;
struct ipv6_hdr *ip6;
+ uint8_t pctype = fdir_input->pctype;
static const uint8_t next_proto[] = {
[I40E_FILTER_PCTYPE_FRAG_IPV4] = IPPROTO_IP,
[I40E_FILTER_PCTYPE_NONF_IPV4_TCP] = IPPROTO_TCP,
@@ -960,6 +962,8 @@ i40e_flow_fdir_fill_eth_ip_head(const struct i40e_fdir_input *fdir_input,
[I40E_FILTER_PCTYPE_NONF_IPV6_UDP] = IPPROTO_UDP,
[I40E_FILTER_PCTYPE_NONF_IPV6_SCTP] = IPPROTO_SCTP,
[I40E_FILTER_PCTYPE_NONF_IPV6_OTHER] = IPPROTO_NONE,
+ [I40E_FILTER_PCTYPE_GTPC] = IPPROTO_UDP,
+ [I40E_FILTER_PCTYPE_GTPU] = IPPROTO_UDP,
};
raw_pkt += 2 * sizeof(struct ether_addr);
@@ -975,7 +979,7 @@ i40e_flow_fdir_fill_eth_ip_head(const struct i40e_fdir_input *fdir_input,
raw_pkt += sizeof(uint16_t);
len += sizeof(uint16_t);
- switch (fdir_input->pctype) {
+ switch (pctype) {
case I40E_FILTER_PCTYPE_L2_PAYLOAD:
*ether_type = fdir_input->flow.l2_flow.ether_type;
break;
@@ -984,6 +988,8 @@ i40e_flow_fdir_fill_eth_ip_head(const struct i40e_fdir_input *fdir_input,
case I40E_FILTER_PCTYPE_NONF_IPV4_SCTP:
case I40E_FILTER_PCTYPE_NONF_IPV4_OTHER:
case I40E_FILTER_PCTYPE_FRAG_IPV4:
+ case I40E_FILTER_PCTYPE_GTPC:
+ case I40E_FILTER_PCTYPE_GTPU:
ip = (struct ipv4_hdr *)raw_pkt;
*ether_type = rte_cpu_to_be_16(ETHER_TYPE_IPv4);
@@ -1062,9 +1068,11 @@ i40e_flow_fdir_construct_pkt(struct i40e_pf *pf,
struct udp_hdr *udp;
struct tcp_hdr *tcp;
struct sctp_hdr *sctp;
+ struct rte_flow_item_gtp *gtp;
uint8_t size, dst = 0;
uint8_t i, pit_idx, set_idx = I40E_FLXPLD_L4_IDX; /* use l4 by default*/
int len;
+ uint8_t pctype = fdir_input->pctype;
/* fill the ethernet and IP head */
len = i40e_flow_fdir_fill_eth_ip_head(fdir_input, raw_pkt,
@@ -1073,7 +1081,7 @@ i40e_flow_fdir_construct_pkt(struct i40e_pf *pf,
return -EINVAL;
/* fill the L4 head */
- switch (fdir_input->pctype) {
+ switch (pctype) {
case I40E_FILTER_PCTYPE_NONF_IPV4_UDP:
udp = (struct udp_hdr *)(raw_pkt + len);
payload = (unsigned char *)udp + sizeof(struct udp_hdr);
@@ -1174,6 +1182,36 @@ i40e_flow_fdir_construct_pkt(struct i40e_pf *pf,
payload += sizeof(struct arp_hdr);
set_idx = I40E_FLXPLD_L2_IDX;
break;
+ case I40E_FILTER_PCTYPE_GTPC:
+ udp = (struct udp_hdr *)(raw_pkt + len);
+ udp->dst_port = rte_cpu_to_be_16(2123);
+ udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
+
+ gtp = (struct rte_flow_item_gtp *)
+ ((unsigned char *)udp + sizeof(struct udp_hdr));
+ gtp->v_pt_rsv_flags = 0x30;
+ gtp->msg_len = rte_cpu_to_be_16(I40E_FDIR_GTP_DEFAULT_LEN);
+ gtp->teid = fdir_input->flow.gtpv4_flow.teid;
+ gtp->msg_type = 0xff;
+
+ payload = (unsigned char *)gtp +
+ sizeof(struct rte_flow_item_gtp);
+ break;
+ case I40E_FILTER_PCTYPE_GTPU:
+ udp = (struct udp_hdr *)(raw_pkt + len);
+ udp->dst_port = rte_cpu_to_be_16(2152);
+ udp->dgram_len = rte_cpu_to_be_16(I40E_FDIR_UDP_DEFAULT_LEN);
+
+ gtp = (struct rte_flow_item_gtp *)
+ ((unsigned char *)udp + sizeof(struct udp_hdr));
+ gtp->v_pt_rsv_flags = 0x30;
+ gtp->msg_len = rte_cpu_to_be_16(I40E_FDIR_GTP_DEFAULT_LEN);
+ gtp->teid = fdir_input->flow.gtpv4_flow.teid;
+ gtp->msg_type = 0xff;
+
+ payload = (unsigned char *)gtp +
+ sizeof(struct rte_flow_item_gtp);
+ break;
default:
PMD_DRV_LOG(ERR, "unknown pctype %u.", fdir_input->pctype);
return -EINVAL;
diff --git a/drivers/net/i40e/i40e_flow.c b/drivers/net/i40e/i40e_flow.c
index 73af7fd..698368e 100644
--- a/drivers/net/i40e/i40e_flow.c
+++ b/drivers/net/i40e/i40e_flow.c
@@ -189,6 +189,14 @@ static enum rte_flow_item_type pattern_fdir_ipv4_sctp[] = {
RTE_FLOW_ITEM_TYPE_END,
};
+static enum rte_flow_item_type pattern_fdir_ipv4_gtp[] = {
+ RTE_FLOW_ITEM_TYPE_ETH,
+ RTE_FLOW_ITEM_TYPE_IPV4,
+ RTE_FLOW_ITEM_TYPE_UDP,
+ RTE_FLOW_ITEM_TYPE_GTP,
+ RTE_FLOW_ITEM_TYPE_END,
+};
+
static enum rte_flow_item_type pattern_fdir_ipv6[] = {
RTE_FLOW_ITEM_TYPE_ETH,
RTE_FLOW_ITEM_TYPE_IPV6,
@@ -1576,6 +1584,7 @@ static struct i40e_valid_pattern i40e_supported_patterns[] = {
{ pattern_fdir_ipv4_udp, i40e_flow_parse_fdir_filter },
{ pattern_fdir_ipv4_tcp, i40e_flow_parse_fdir_filter },
{ pattern_fdir_ipv4_sctp, i40e_flow_parse_fdir_filter },
+ { pattern_fdir_ipv4_gtp, i40e_flow_parse_fdir_filter },
{ pattern_fdir_ipv6, i40e_flow_parse_fdir_filter },
{ pattern_fdir_ipv6_udp, i40e_flow_parse_fdir_filter },
{ pattern_fdir_ipv6_tcp, i40e_flow_parse_fdir_filter },
@@ -2326,10 +2335,11 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
const struct rte_flow_item_tcp *tcp_spec, *tcp_mask;
const struct rte_flow_item_udp *udp_spec, *udp_mask;
const struct rte_flow_item_sctp *sctp_spec, *sctp_mask;
+ const struct rte_flow_item_gtp *gtp_spec, *gtp_mask;
const struct rte_flow_item_raw *raw_spec, *raw_mask;
const struct rte_flow_item_vf *vf_spec;
- enum i40e_filter_pctype pctype = 0;
+ uint8_t pctype = 0;
uint64_t input_set = I40E_INSET_NONE;
uint16_t frag_off;
enum rte_flow_item_type item_type;
@@ -2351,6 +2361,7 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
uint16_t outer_tpid;
uint16_t ether_type;
uint32_t vtc_flow_cpu;
+ uint16_t udp_dst_port = 0;
int ret;
memset(off_arr, 0, sizeof(off_arr));
@@ -2631,11 +2642,46 @@ i40e_flow_parse_fdir_pattern(struct rte_eth_dev *dev,
filter->input.flow.udp6_flow.dst_port =
udp_spec->hdr.dst_port;
}
+
+ udp_dst_port = udp_spec->hdr.dst_port;
}
layer_idx = I40E_FLXPLD_L4_IDX;
break;
+ case RTE_FLOW_ITEM_TYPE_GTP:
+ gtp_spec = (const struct rte_flow_item_gtp *)item->spec;
+ gtp_mask = (const struct rte_flow_item_gtp *)item->mask;
+
+ if (gtp_spec && gtp_mask) {
+ if (gtp_mask->v_pt_rsv_flags ||
+ gtp_mask->msg_type ||
+ gtp_mask->msg_len ||
+ gtp_mask->teid != UINT32_MAX) {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "Invalid GTP mask");
+ return -rte_errno;
+ }
+
+ input_set |= I40E_INSET_GTP_TEID;
+ filter->input.flow.gtpv4_flow.teid =
+ gtp_spec->teid;
+
+ if (udp_dst_port == rte_cpu_to_be_16(2123))
+ pctype = I40E_FILTER_PCTYPE_GTPC;
+ else if (udp_dst_port == rte_cpu_to_be_16(2152))
+ pctype = I40E_FILTER_PCTYPE_GTPU;
+ else {
+ rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_ITEM,
+ item,
+ "Invalid GTP flow");
+ return -rte_errno;
+ }
+ }
+ break;
case RTE_FLOW_ITEM_TYPE_SCTP:
sctp_spec =
(const struct rte_flow_item_sctp *)item->spec;
--
2.5.5
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