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net/sfc: support Rx checksum offload for EF100

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Also support Rx packet type offload.

Checksumming is actually always enabled. Report it per-queue offload
to give applications maximum flexibility.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2020-10-13 14:45:43 +01:00 committed by Ferruh Yigit
parent 942a636499
commit 9e6e7f479a
1 changed files with 182 additions and 1 deletions
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183
drivers/net/sfc/sfc_ef100_rx.c
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@ -177,6 +177,166 @@ sfc_ef100_rx_qrefill(struct sfc_ef100_rxq *rxq)
sfc_ef100_rx_qpush(rxq, added);
}
static inline uint64_t
sfc_ef100_rx_nt_or_inner_l4_csum(const efx_word_t class)
{
return EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_NT_OR_INNER_L4_CSUM) ==
ESE_GZ_RH_HCLASS_L4_CSUM_GOOD ?
PKT_RX_L4_CKSUM_GOOD : PKT_RX_L4_CKSUM_BAD;
}
static inline uint64_t
sfc_ef100_rx_tun_outer_l4_csum(const efx_word_t class)
{
return EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_TUN_OUTER_L4_CSUM) ==
ESE_GZ_RH_HCLASS_L4_CSUM_GOOD ?
PKT_RX_OUTER_L4_CKSUM_GOOD : PKT_RX_OUTER_L4_CKSUM_GOOD;
}
static uint32_t
sfc_ef100_rx_class_decode(const efx_word_t class, uint64_t *ol_flags)
{
uint32_t ptype;
bool no_tunnel = false;
if (unlikely(EFX_WORD_FIELD(class, ESF_GZ_RX_PREFIX_HCLASS_L2_CLASS) !=
ESE_GZ_RH_HCLASS_L2_CLASS_E2_0123VLAN))
return 0;
switch (EFX_WORD_FIELD(class, ESF_GZ_RX_PREFIX_HCLASS_L2_N_VLAN)) {
case 0:
ptype = RTE_PTYPE_L2_ETHER;
break;
case 1:
ptype = RTE_PTYPE_L2_ETHER_VLAN;
break;
default:
ptype = RTE_PTYPE_L2_ETHER_QINQ;
break;
}
switch (EFX_WORD_FIELD(class, ESF_GZ_RX_PREFIX_HCLASS_TUNNEL_CLASS)) {
case ESE_GZ_RH_HCLASS_TUNNEL_CLASS_NONE:
no_tunnel = true;
break;
case ESE_GZ_RH_HCLASS_TUNNEL_CLASS_VXLAN:
ptype |= RTE_PTYPE_TUNNEL_VXLAN | RTE_PTYPE_L4_UDP;
*ol_flags |= sfc_ef100_rx_tun_outer_l4_csum(class);
break;
case ESE_GZ_RH_HCLASS_TUNNEL_CLASS_NVGRE:
ptype |= RTE_PTYPE_TUNNEL_NVGRE;
break;
case ESE_GZ_RH_HCLASS_TUNNEL_CLASS_GENEVE:
ptype |= RTE_PTYPE_TUNNEL_GENEVE | RTE_PTYPE_L4_UDP;
*ol_flags |= sfc_ef100_rx_tun_outer_l4_csum(class);
break;
default:
/*
* Driver does not know the tunnel, but it is
* still a tunnel and NT_OR_INNER refer to inner
* frame.
*/
no_tunnel = false;
}
if (no_tunnel) {
bool l4_valid = true;
switch (EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_NT_OR_INNER_L3_CLASS)) {
case ESE_GZ_RH_HCLASS_L3_CLASS_IP4GOOD:
ptype |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
*ol_flags |= PKT_RX_IP_CKSUM_GOOD;
break;
case ESE_GZ_RH_HCLASS_L3_CLASS_IP4BAD:
ptype |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
*ol_flags |= PKT_RX_IP_CKSUM_BAD;
break;
case ESE_GZ_RH_HCLASS_L3_CLASS_IP6:
ptype |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
break;
default:
l4_valid = false;
}
if (l4_valid) {
switch (EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_NT_OR_INNER_L4_CLASS)) {
case ESE_GZ_RH_HCLASS_L4_CLASS_TCP:
ptype |= RTE_PTYPE_L4_TCP;
*ol_flags |=
sfc_ef100_rx_nt_or_inner_l4_csum(class);
break;
case ESE_GZ_RH_HCLASS_L4_CLASS_UDP:
ptype |= RTE_PTYPE_L4_UDP;
*ol_flags |=
sfc_ef100_rx_nt_or_inner_l4_csum(class);
break;
case ESE_GZ_RH_HCLASS_L4_CLASS_FRAG:
ptype |= RTE_PTYPE_L4_FRAG;
break;
}
}
} else {
bool l4_valid = true;
switch (EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_TUN_OUTER_L3_CLASS)) {
case ESE_GZ_RH_HCLASS_L3_CLASS_IP4GOOD:
ptype |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
break;
case ESE_GZ_RH_HCLASS_L3_CLASS_IP4BAD:
ptype |= RTE_PTYPE_L3_IPV4_EXT_UNKNOWN;
*ol_flags |= PKT_RX_EIP_CKSUM_BAD;
break;
case ESE_GZ_RH_HCLASS_L3_CLASS_IP6:
ptype |= RTE_PTYPE_L3_IPV6_EXT_UNKNOWN;
break;
}
switch (EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_NT_OR_INNER_L3_CLASS)) {
case ESE_GZ_RH_HCLASS_L3_CLASS_IP4GOOD:
ptype |= RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
*ol_flags |= PKT_RX_IP_CKSUM_GOOD;
break;
case ESE_GZ_RH_HCLASS_L3_CLASS_IP4BAD:
ptype |= RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN;
*ol_flags |= PKT_RX_IP_CKSUM_BAD;
break;
case ESE_GZ_RH_HCLASS_L3_CLASS_IP6:
ptype |= RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN;
break;
default:
l4_valid = false;
break;
}
if (l4_valid) {
switch (EFX_WORD_FIELD(class,
ESF_GZ_RX_PREFIX_HCLASS_NT_OR_INNER_L4_CLASS)) {
case ESE_GZ_RH_HCLASS_L4_CLASS_TCP:
ptype |= RTE_PTYPE_INNER_L4_TCP;
*ol_flags |=
sfc_ef100_rx_nt_or_inner_l4_csum(class);
break;
case ESE_GZ_RH_HCLASS_L4_CLASS_UDP:
ptype |= RTE_PTYPE_INNER_L4_UDP;
*ol_flags |=
sfc_ef100_rx_nt_or_inner_l4_csum(class);
break;
case ESE_GZ_RH_HCLASS_L4_CLASS_FRAG:
ptype |= RTE_PTYPE_INNER_L4_FRAG;
break;
}
}
}
return ptype;
}
static bool
sfc_ef100_rx_prefix_to_offloads(const efx_oword_t *rx_prefix,
struct rte_mbuf *m)
@ -195,6 +355,8 @@ sfc_ef100_rx_prefix_to_offloads(const efx_oword_t *rx_prefix,
ESE_GZ_RH_HCLASS_L2_STATUS_OK))
return false;
m->packet_type = sfc_ef100_rx_class_decode(*class, &ol_flags);
m->ol_flags = ol_flags;
return true;
}
@ -374,6 +536,22 @@ static const uint32_t *
sfc_ef100_supported_ptypes_get(__rte_unused uint32_t tunnel_encaps)
{
static const uint32_t ef100_native_ptypes[] = {
RTE_PTYPE_L2_ETHER,
RTE_PTYPE_L2_ETHER_VLAN,
RTE_PTYPE_L2_ETHER_QINQ,
RTE_PTYPE_L3_IPV4_EXT_UNKNOWN,
RTE_PTYPE_L3_IPV6_EXT_UNKNOWN,
RTE_PTYPE_L4_TCP,
RTE_PTYPE_L4_UDP,
RTE_PTYPE_L4_FRAG,
RTE_PTYPE_TUNNEL_VXLAN,
RTE_PTYPE_TUNNEL_NVGRE,
RTE_PTYPE_TUNNEL_GENEVE,
RTE_PTYPE_INNER_L3_IPV4_EXT_UNKNOWN,
RTE_PTYPE_INNER_L3_IPV6_EXT_UNKNOWN,
RTE_PTYPE_INNER_L4_TCP,
RTE_PTYPE_INNER_L4_UDP,
RTE_PTYPE_INNER_L4_FRAG,
RTE_PTYPE_UNKNOWN
};
@ -596,7 +774,10 @@ struct sfc_dp_rx sfc_ef100_rx = {
},
.features = SFC_DP_RX_FEAT_MULTI_PROCESS,
.dev_offload_capa = 0,
.queue_offload_capa = DEV_RX_OFFLOAD_SCATTER,
.queue_offload_capa = DEV_RX_OFFLOAD_CHECKSUM |
DEV_RX_OFFLOAD_OUTER_IPV4_CKSUM |
DEV_RX_OFFLOAD_OUTER_UDP_CKSUM |
DEV_RX_OFFLOAD_SCATTER,
.get_dev_info = sfc_ef100_rx_get_dev_info,
.qsize_up_rings = sfc_ef100_rx_qsize_up_rings,
.qcreate = sfc_ef100_rx_qcreate,