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path: root/drivers/net/ethernet/sfc/ef10.c
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Diffstat (limited to 'drivers/net/ethernet/sfc/ef10.c')
-rw-r--r--drivers/net/ethernet/sfc/ef10.c123
1 files changed, 111 insertions, 12 deletions
diff --git a/drivers/net/ethernet/sfc/ef10.c b/drivers/net/ethernet/sfc/ef10.c
index dec0c8083ff3..fd1008daf1e3 100644
--- a/drivers/net/ethernet/sfc/ef10.c
+++ b/drivers/net/ethernet/sfc/ef10.c
@@ -3154,13 +3154,103 @@ static void efx_ef10_handle_rx_abort(struct efx_rx_queue *rx_queue)
++efx_rx_queue_channel(rx_queue)->n_rx_nodesc_trunc;
}
+static u16 efx_ef10_handle_rx_event_errors(struct efx_channel *channel,
+ unsigned int n_packets,
+ unsigned int rx_encap_hdr,
+ unsigned int rx_l3_class,
+ unsigned int rx_l4_class,
+ const efx_qword_t *event)
+{
+ struct efx_nic *efx = channel->efx;
+
+ if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_ECRC_ERR)) {
+ if (!efx->loopback_selftest)
+ channel->n_rx_eth_crc_err += n_packets;
+ return EFX_RX_PKT_DISCARD;
+ }
+ if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_IPCKSUM_ERR)) {
+ if (unlikely(rx_encap_hdr != ESE_EZ_ENCAP_HDR_VXLAN &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP4_FRAG &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP6 &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP6_FRAG))
+ netdev_WARN(efx->net_dev,
+ "invalid class for RX_IPCKSUM_ERR: event="
+ EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*event));
+ if (!efx->loopback_selftest)
+ *(rx_encap_hdr ?
+ &channel->n_rx_outer_ip_hdr_chksum_err :
+ &channel->n_rx_ip_hdr_chksum_err) += n_packets;
+ return 0;
+ }
+ if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_TCPUDP_CKSUM_ERR)) {
+ if (unlikely(rx_encap_hdr != ESE_EZ_ENCAP_HDR_VXLAN &&
+ ((rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP6) ||
+ (rx_l4_class != ESE_DZ_L4_CLASS_TCP &&
+ rx_l4_class != ESE_DZ_L4_CLASS_UDP))))
+ netdev_WARN(efx->net_dev,
+ "invalid class for RX_TCPUDP_CKSUM_ERR: event="
+ EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*event));
+ if (!efx->loopback_selftest)
+ *(rx_encap_hdr ?
+ &channel->n_rx_outer_tcp_udp_chksum_err :
+ &channel->n_rx_tcp_udp_chksum_err) += n_packets;
+ return 0;
+ }
+ if (EFX_QWORD_FIELD(*event, ESF_EZ_RX_IP_INNER_CHKSUM_ERR)) {
+ if (unlikely(!rx_encap_hdr))
+ netdev_WARN(efx->net_dev,
+ "invalid encapsulation type for RX_IP_INNER_CHKSUM_ERR: event="
+ EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*event));
+ else if (unlikely(rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP4_FRAG &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP6 &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP6_FRAG))
+ netdev_WARN(efx->net_dev,
+ "invalid class for RX_IP_INNER_CHKSUM_ERR: event="
+ EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*event));
+ if (!efx->loopback_selftest)
+ channel->n_rx_inner_ip_hdr_chksum_err += n_packets;
+ return 0;
+ }
+ if (EFX_QWORD_FIELD(*event, ESF_EZ_RX_TCP_UDP_INNER_CHKSUM_ERR)) {
+ if (unlikely(!rx_encap_hdr))
+ netdev_WARN(efx->net_dev,
+ "invalid encapsulation type for RX_TCP_UDP_INNER_CHKSUM_ERR: event="
+ EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*event));
+ else if (unlikely((rx_l3_class != ESE_DZ_L3_CLASS_IP4 &&
+ rx_l3_class != ESE_DZ_L3_CLASS_IP6) ||
+ (rx_l4_class != ESE_DZ_L4_CLASS_TCP &&
+ rx_l4_class != ESE_DZ_L4_CLASS_UDP)))
+ netdev_WARN(efx->net_dev,
+ "invalid class for RX_TCP_UDP_INNER_CHKSUM_ERR: event="
+ EFX_QWORD_FMT "\n",
+ EFX_QWORD_VAL(*event));
+ if (!efx->loopback_selftest)
+ channel->n_rx_inner_tcp_udp_chksum_err += n_packets;
+ return 0;
+ }
+
+ WARN_ON(1); /* No error bits were recognised */
+ return 0;
+}
+
static int efx_ef10_handle_rx_event(struct efx_channel *channel,
const efx_qword_t *event)
{
- unsigned int rx_bytes, next_ptr_lbits, rx_queue_label, rx_l4_class;
+ unsigned int rx_bytes, next_ptr_lbits, rx_queue_label;
+ unsigned int rx_l3_class, rx_l4_class, rx_encap_hdr;
unsigned int n_descs, n_packets, i;
struct efx_nic *efx = channel->efx;
+ struct efx_ef10_nic_data *nic_data = efx->nic_data;
struct efx_rx_queue *rx_queue;
+ efx_qword_t errors;
bool rx_cont;
u16 flags = 0;
@@ -3171,8 +3261,14 @@ static int efx_ef10_handle_rx_event(struct efx_channel *channel,
rx_bytes = EFX_QWORD_FIELD(*event, ESF_DZ_RX_BYTES);
next_ptr_lbits = EFX_QWORD_FIELD(*event, ESF_DZ_RX_DSC_PTR_LBITS);
rx_queue_label = EFX_QWORD_FIELD(*event, ESF_DZ_RX_QLABEL);
+ rx_l3_class = EFX_QWORD_FIELD(*event, ESF_DZ_RX_L3_CLASS);
rx_l4_class = EFX_QWORD_FIELD(*event, ESF_DZ_RX_L4_CLASS);
rx_cont = EFX_QWORD_FIELD(*event, ESF_DZ_RX_CONT);
+ rx_encap_hdr =
+ nic_data->datapath_caps &
+ (1 << MC_CMD_GET_CAPABILITIES_OUT_VXLAN_NVGRE_LBN) ?
+ EFX_QWORD_FIELD(*event, ESF_EZ_RX_ENCAP_HDR) :
+ ESE_EZ_ENCAP_HDR_NONE;
if (EFX_QWORD_FIELD(*event, ESF_DZ_RX_DROP_EVENT))
netdev_WARN(efx->net_dev, "saw RX_DROP_EVENT: event="
@@ -3232,17 +3328,20 @@ static int efx_ef10_handle_rx_event(struct efx_channel *channel,
n_packets = 1;
}
- if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_RX_ECRC_ERR)))
- flags |= EFX_RX_PKT_DISCARD;
-
- if (unlikely(EFX_QWORD_FIELD(*event, ESF_DZ_RX_IPCKSUM_ERR))) {
- channel->n_rx_ip_hdr_chksum_err += n_packets;
- } else if (unlikely(EFX_QWORD_FIELD(*event,
- ESF_DZ_RX_TCPUDP_CKSUM_ERR))) {
- channel->n_rx_tcp_udp_chksum_err += n_packets;
- } else if (rx_l4_class == ESE_DZ_L4_CLASS_TCP ||
- rx_l4_class == ESE_DZ_L4_CLASS_UDP) {
- flags |= EFX_RX_PKT_CSUMMED;
+ EFX_POPULATE_QWORD_5(errors, ESF_DZ_RX_ECRC_ERR, 1,
+ ESF_DZ_RX_IPCKSUM_ERR, 1,
+ ESF_DZ_RX_TCPUDP_CKSUM_ERR, 1,
+ ESF_EZ_RX_IP_INNER_CHKSUM_ERR, 1,
+ ESF_EZ_RX_TCP_UDP_INNER_CHKSUM_ERR, 1);
+ EFX_AND_QWORD(errors, *event, errors);
+ if (unlikely(!EFX_QWORD_IS_ZERO(errors))) {
+ flags |= efx_ef10_handle_rx_event_errors(channel, n_packets,
+ rx_l3_class, rx_l4_class,
+ rx_encap_hdr, event);
+ } else {
+ if (rx_l4_class == ESE_DZ_L4_CLASS_TCP ||
+ rx_l4_class == ESE_DZ_L4_CLASS_UDP)
+ flags |= EFX_RX_PKT_CSUMMED;
}
if (rx_l4_class == ESE_DZ_L4_CLASS_TCP)
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