* [PATCH v2] net/iavf: support raw packet for flow subscription
@ 2022-10-10 7:25 Jie Wang
0 siblings, 0 replies; only message in thread
From: Jie Wang @ 2022-10-10 7:25 UTC (permalink / raw)
To: dev
Cc: stevex.yang, qi.z.zhang, qiming.yang, jingjing.wu, beilei.xing, Jie Wang
Add Protocol Agnostic Flow (raw flow) support for flow subscription
in AVF.
For example, testpmd creates a flow subscription raw packet rule:
rule: eth + ipv4 src is 1.1.1.1 dst is 2.2.2.2
cmd: flow create 0 ingress pattern raw pattern spec \
00000000000000000000000008004500001400000000000000000101010102020202 \
pattern mask \
0000000000000000000000000000000000000000000000000000FFFFFFFFFFFFFFFF \
/ end actions port_representor port_id 0 / end
Signed-off-by: Jie Wang <jie1x.wang@intel.com>
---
v2: remove flow action passthru
---
drivers/net/iavf/iavf_fsub.c | 88 ++++++++++++++++++++++++++++++++----
1 file changed, 78 insertions(+), 10 deletions(-)
diff --git a/drivers/net/iavf/iavf_fsub.c b/drivers/net/iavf/iavf_fsub.c
index 3be75923a5..4082c0069f 100644
--- a/drivers/net/iavf/iavf_fsub.c
+++ b/drivers/net/iavf/iavf_fsub.c
@@ -57,6 +57,7 @@ static struct iavf_flow_parser iavf_fsub_parser;
static struct
iavf_pattern_match_item iavf_fsub_pattern_list[] = {
+ {iavf_pattern_raw, IAVF_INSET_NONE, IAVF_INSET_NONE},
{iavf_pattern_ethertype, IAVF_SW_INSET_ETHER, IAVF_INSET_NONE},
{iavf_pattern_eth_ipv4, IAVF_SW_INSET_MAC_IPV4, IAVF_INSET_NONE},
{iavf_pattern_eth_vlan_ipv4, IAVF_SW_INSET_MAC_VLAN_IPV4, IAVF_INSET_NONE},
@@ -153,6 +154,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
{
struct virtchnl_proto_hdrs *hdrs = &filter->sub_fltr.proto_hdrs;
enum rte_flow_item_type item_type;
+ const struct rte_flow_item_raw *raw_spec, *raw_mask;
const struct rte_flow_item_eth *eth_spec, *eth_mask;
const struct rte_flow_item_ipv4 *ipv4_spec, *ipv4_mask;
const struct rte_flow_item_ipv6 *ipv6_spec, *ipv6_mask;
@@ -164,20 +166,83 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
uint64_t outer_input_set = IAVF_INSET_NONE;
uint64_t *input = NULL;
uint16_t input_set_byte = 0;
- uint16_t j;
+ uint8_t item_num = 0;
uint32_t layer = 0;
- for (item = pattern; item->type !=
- RTE_FLOW_ITEM_TYPE_END; item++) {
+ for (item = pattern; item->type != RTE_FLOW_ITEM_TYPE_END; item++) {
if (item->last) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Not support range");
- return false;
+ return -rte_errno;
}
+
item_type = item->type;
+ item_num++;
switch (item_type) {
+ case RTE_FLOW_ITEM_TYPE_RAW: {
+ raw_spec = item->spec;
+ raw_mask = item->mask;
+
+ if (item_num != 1)
+ return -rte_errno;
+
+ if (raw_spec->length != raw_mask->length)
+ return -rte_errno;
+
+ uint16_t pkt_len = 0;
+ uint16_t tmp_val = 0;
+ uint8_t tmp = 0;
+ int i, j;
+
+ pkt_len = raw_spec->length;
+
+ for (i = 0, j = 0; i < pkt_len; i += 2, j++) {
+ tmp = raw_spec->pattern[i];
+ if (tmp >= 'a' && tmp <= 'f')
+ tmp_val = tmp - 'a' + 10;
+ if (tmp >= 'A' && tmp <= 'F')
+ tmp_val = tmp - 'A' + 10;
+ if (tmp >= '0' && tmp <= '9')
+ tmp_val = tmp - '0';
+
+ tmp_val *= 16;
+ tmp = raw_spec->pattern[i + 1];
+ if (tmp >= 'a' && tmp <= 'f')
+ tmp_val += (tmp - 'a' + 10);
+ if (tmp >= 'A' && tmp <= 'F')
+ tmp_val += (tmp - 'A' + 10);
+ if (tmp >= '0' && tmp <= '9')
+ tmp_val += (tmp - '0');
+
+ hdrs->raw.spec[j] = tmp_val;
+
+ tmp = raw_mask->pattern[i];
+ if (tmp >= 'a' && tmp <= 'f')
+ tmp_val = tmp - 'a' + 10;
+ if (tmp >= 'A' && tmp <= 'F')
+ tmp_val = tmp - 'A' + 10;
+ if (tmp >= '0' && tmp <= '9')
+ tmp_val = tmp - '0';
+
+ tmp_val *= 16;
+ tmp = raw_mask->pattern[i + 1];
+ if (tmp >= 'a' && tmp <= 'f')
+ tmp_val += (tmp - 'a' + 10);
+ if (tmp >= 'A' && tmp <= 'F')
+ tmp_val += (tmp - 'A' + 10);
+ if (tmp >= '0' && tmp <= '9')
+ tmp_val += (tmp - '0');
+
+ hdrs->raw.mask[j] = tmp_val;
+ }
+
+ hdrs->raw.pkt_len = pkt_len / 2;
+ hdrs->tunnel_level = 0;
+ hdrs->count = 0;
+ return 0;
+ }
case RTE_FLOW_ITEM_TYPE_ETH:
eth_spec = item->spec;
eth_mask = item->mask;
@@ -236,7 +301,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Invalid IPv4 mask.");
- return false;
+ return -rte_errno;
}
if (ipv4_mask->hdr.src_addr) {
@@ -268,7 +333,9 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
hdrs->count = ++layer;
break;
- case RTE_FLOW_ITEM_TYPE_IPV6:
+ case RTE_FLOW_ITEM_TYPE_IPV6: {
+ int j;
+
ipv6_spec = item->spec;
ipv6_mask = item->mask;
@@ -283,7 +350,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Invalid IPv6 mask");
- return false;
+ return -rte_errno;
}
for (j = 0; j < IAVF_IPV6_ADDR_LENGTH; j++) {
@@ -329,6 +396,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
hdrs->count = ++layer;
break;
+ }
case RTE_FLOW_ITEM_TYPE_UDP:
udp_spec = item->spec;
udp_mask = item->mask;
@@ -345,7 +413,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Invalid UDP mask");
- return false;
+ return -rte_errno;
}
if (udp_mask->hdr.src_port) {
@@ -386,7 +454,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM,
item, "Invalid TCP mask");
- return false;
+ return -rte_errno;
}
if (tcp_mask->hdr.src_port) {
@@ -427,7 +495,7 @@ iavf_fsub_parse_pattern(const struct rte_flow_item pattern[],
RTE_FLOW_ERROR_TYPE_ITEM,
item,
"Invalid VLAN input set.");
- return false;
+ return -rte_errno;
}
rte_memcpy(hdr->buffer_spec, &vlan_spec->hdr,
--
2.25.1
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