Check the direction bit in the error frame packet (EPACK) to determine
which net_device_stats {rx,tx}_errors counter to increase.
Signed-off-by: Jimmy Assarsson <extja@xxxxxxxxxx>
---
Changes in v3:
- No changes.
Changes in v2:
- Rebased on [PATCH v5 0/5] fix statistics and payload issues for
error [1] series.
[1]
https://lore.kernel.org/all/20211207121531.42941-1-mailhol.vincent@xxxxxxxxxx
drivers/net/can/kvaser_pciefd.c | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c
index 6fd6bed04577..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 {
@@ -1286,7 +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;
--
2.34.1
