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net/sfc: support GENEVE in flow API filters

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Exact match of virtual network identifier is supported by parser.
IP protocol match are enforced to UDP.
Only Ethernet protocol type is supported.

Signed-off-by: Roman Zhukov <roman.zhukov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
This commit is contained in:
Roman Zhukov 2018-03-06 15:24:52 +00:00 committed by Ferruh Yigit
parent 8ffe484595
commit 735783c414
2 changed files with 81 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
doc/guides/nics/sfc_efx.rst
View File

@ -168,6 +168,9 @@ Supported pattern items:
- VXLAN (exact match of VXLAN network identifier)
- GENEVE (exact match of virtual network identifier, only Ethernet (0x6558)
protocol type is supported)
- NVGRE (exact match of virtual subnet ID)
Supported actions:

80
drivers/net/sfc/sfc_flow.c
View File

@ -58,6 +58,7 @@ 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 sfc_flow_item_parse sfc_flow_parse_vxlan;
static sfc_flow_item_parse sfc_flow_parse_geneve;
static sfc_flow_item_parse sfc_flow_parse_nvgre;
static boolean_t
@ -717,7 +718,7 @@ sfc_flow_set_match_flags_for_encap_pkts(const struct rte_flow_item *item,
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Outer IP header protocol must be UDP "
"in VxLAN pattern");
"in VxLAN/GENEVE pattern");
return -rte_errno;
case EFX_IPPROTO_GRE:
@ -730,7 +731,7 @@ sfc_flow_set_match_flags_for_encap_pkts(const struct rte_flow_item *item,
default:
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Only VxLAN/NVGRE tunneling patterns "
"Only VxLAN/GENEVE/NVGRE tunneling patterns "
"are supported");
return -rte_errno;
}
@ -831,6 +832,74 @@ sfc_flow_parse_vxlan(const struct rte_flow_item *item,
return rc;
}
/**
* Convert GENEVE item to EFX filter specification.
*
* @param item[in]
* Item specification. Only Virtual Network Identifier and protocol type
* fields are supported. But protocol type can be only Ethernet (0x6558).
* 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_geneve(const struct rte_flow_item *item,
efx_filter_spec_t *efx_spec,
struct rte_flow_error *error)
{
int rc;
const struct rte_flow_item_geneve *spec = NULL;
const struct rte_flow_item_geneve *mask = NULL;
const struct rte_flow_item_geneve supp_mask = {
.protocol = RTE_BE16(0xffff),
.vni = { 0xff, 0xff, 0xff }
};
rc = sfc_flow_parse_init(item,
(const void **)&spec,
(const void **)&mask,
&supp_mask,
&rte_flow_item_geneve_mask,
sizeof(struct rte_flow_item_geneve),
error);
if (rc != 0)
return rc;
rc = sfc_flow_set_match_flags_for_encap_pkts(item, efx_spec,
EFX_IPPROTO_UDP, error);
if (rc != 0)
return rc;
efx_spec->efs_encap_type = EFX_TUNNEL_PROTOCOL_GENEVE;
efx_spec->efs_match_flags |= EFX_FILTER_MATCH_ENCAP_TYPE;
if (spec == NULL)
return 0;
if (mask->protocol == supp_mask.protocol) {
if (spec->protocol != rte_cpu_to_be_16(ETHER_TYPE_TEB)) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"GENEVE encap. protocol must be Ethernet "
"(0x6558) in the GENEVE pattern item");
return -rte_errno;
}
} else if (mask->protocol != 0) {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_ITEM, item,
"Unsupported mask for GENEVE encap. protocol");
return -rte_errno;
}
rc = sfc_flow_set_efx_spec_vni_or_vsid(efx_spec, spec->vni,
mask->vni, item, error);
return rc;
}
/**
* Convert NVGRE item to EFX filter specification.
*
@ -931,6 +1000,12 @@ static const struct sfc_flow_item sfc_flow_items[] = {
.layer = SFC_FLOW_ITEM_START_LAYER,
.parse = sfc_flow_parse_vxlan,
},
{
.type = RTE_FLOW_ITEM_TYPE_GENEVE,
.prev_layer = SFC_FLOW_ITEM_L4,
.layer = SFC_FLOW_ITEM_START_LAYER,
.parse = sfc_flow_parse_geneve,
},
{
.type = RTE_FLOW_ITEM_TYPE_NVGRE,
.prev_layer = SFC_FLOW_ITEM_L3,
@ -1045,6 +1120,7 @@ sfc_flow_parse_pattern(const struct rte_flow_item pattern[],
break;
case RTE_FLOW_ITEM_TYPE_VXLAN:
case RTE_FLOW_ITEM_TYPE_GENEVE:
case RTE_FLOW_ITEM_TYPE_NVGRE:
if (is_ifrm) {
rte_flow_error_set(error, EINVAL,