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path: root/drivers/net/can/kvaser_pciefd.c
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-rw-r--r--drivers/net/can/kvaser_pciefd.c24
1 files changed, 13 insertions, 11 deletions
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index 74d9899fc904..017f2d36ffc3 100644
--- a/drivers/net/can/kvaser_pciefd.c
+++ b/drivers/net/can/kvaser_pciefd.c
@@ -248,6 +248,9 @@ MODULE_DESCRIPTION("CAN driver for Kvaser CAN/PCIe devices");
#define KVASER_PCIEFD_SPACK_EWLR BIT(23)
#define KVASER_PCIEFD_SPACK_EPLR BIT(24)
+/* Kvaser KCAN_EPACK second word */
+#define KVASER_PCIEFD_EPACK_DIR_TX BIT(0)
+
struct kvaser_pciefd;
struct kvaser_pciefd_can {
@@ -1182,20 +1185,21 @@ static int kvaser_pciefd_handle_data_packet(struct kvaser_pciefd *pcie,
cf->len = can_fd_dlc2len(p->header[1] >> KVASER_PCIEFD_RPACKET_DLC_SHIFT);
- if (p->header[0] & KVASER_PCIEFD_RPACKET_RTR)
+ if (p->header[0] & KVASER_PCIEFD_RPACKET_RTR) {
cf->can_id |= CAN_RTR_FLAG;
- else
+ } else {
memcpy(cf->data, data, cf->len);
+ stats->rx_bytes += cf->len;
+ }
+ stats->rx_packets++;
+
shhwtstamps = skb_hwtstamps(skb);
shhwtstamps->hwtstamp =
ns_to_ktime(div_u64(p->timestamp * 1000,
pcie->freq_to_ticks_div));
- stats->rx_bytes += cf->len;
- stats->rx_packets++;
-
return netif_rx(skb);
}
@@ -1285,7 +1289,10 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can,
can->err_rep_cnt++;
can->can.can_stats.bus_error++;
- stats->rx_errors++;
+ if (p->header[1] & KVASER_PCIEFD_EPACK_DIR_TX)
+ stats->tx_errors++;
+ else
+ stats->rx_errors++;
can->bec.txerr = bec.txerr;
can->bec.rxerr = bec.rxerr;
@@ -1304,9 +1311,6 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can,
cf->data[6] = bec.txerr;
cf->data[7] = bec.rxerr;
- stats->rx_packets++;
- stats->rx_bytes += cf->len;
-
netif_rx(skb);
return 0;
}
@@ -1504,8 +1508,6 @@ static void kvaser_pciefd_handle_nack_packet(struct kvaser_pciefd_can *can,
if (skb) {
cf->can_id |= CAN_ERR_BUSERROR;
- stats->rx_bytes += cf->len;
- stats->rx_packets++;
netif_rx(skb);
} else {
stats->rx_dropped++;