From 3e5c291c7942d0909a48bc5ec1b9bba136465166 Mon Sep 17 00:00:00 2001 From: Vincent Mailhol Date: Tue, 19 Jul 2022 23:35:49 +0900 Subject: can: add CAN_ERR_CNT flag to notify availability of error counter Add a dedicated flag in uapi/linux/can/error.h to notify the userland that fields data[6] and data[7] of the CAN error frame were respectively populated with the tx and rx error counters. For all driver tree-wide, set up this flags whenever needed. Link: https://lore.kernel.org/all/20220719143550.3681-12-mailhol.vincent@wanadoo.fr Signed-off-by: Vincent Mailhol Signed-off-by: Marc Kleine-Budde --- drivers/net/can/c_can/c_can_main.c | 6 +++--- drivers/net/can/cc770/cc770.c | 1 + drivers/net/can/ctucanfd/ctucanfd_base.c | 5 +++-- drivers/net/can/grcan.c | 1 + drivers/net/can/ifi_canfd/ifi_canfd.c | 4 ++-- drivers/net/can/janz-ican3.c | 4 ++-- drivers/net/can/kvaser_pciefd.c | 2 +- drivers/net/can/m_can/m_can.c | 4 ++-- drivers/net/can/pch_can.c | 1 + drivers/net/can/peak_canfd/peak_canfd.c | 6 +++--- drivers/net/can/rcar/rcar_can.c | 1 + drivers/net/can/rcar/rcar_canfd.c | 4 ++-- drivers/net/can/sja1000/sja1000.c | 1 + drivers/net/can/slcan/slcan-core.c | 1 + drivers/net/can/spi/hi311x.c | 1 + drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c | 1 + drivers/net/can/sun4i_can.c | 1 + drivers/net/can/ti_hecc.c | 1 + drivers/net/can/usb/esd_usb.c | 3 ++- drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c | 2 ++ drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c | 1 + drivers/net/can/usb/peak_usb/pcan_usb.c | 1 + drivers/net/can/usb/usb_8dev.c | 1 + drivers/net/can/xilinx_can.c | 1 + 24 files changed, 36 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c index ed4db4cf8716..de38d8f7b5f7 100644 --- a/drivers/net/can/c_can/c_can_main.c +++ b/drivers/net/can/c_can/c_can_main.c @@ -952,14 +952,14 @@ static int c_can_handle_state_change(struct net_device *dev, switch (error_type) { case C_CAN_NO_ERROR: - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = CAN_ERR_CRTL_ACTIVE; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; break; case C_CAN_ERROR_WARNING: /* error warning state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (bec.txerr > bec.rxerr) ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; @@ -969,7 +969,7 @@ static int c_can_handle_state_change(struct net_device *dev, break; case C_CAN_ERROR_PASSIVE: /* error passive state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; if (rx_err_passive) cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE; if (bec.txerr > 127) diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index bb7224cfc6ab..797a954bb1a0 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -512,6 +512,7 @@ static int cc770_err(struct net_device *dev, u8 status) /* Use extended functions of the CC770 */ if (priv->control_normal_mode & CTRL_EAF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = cc770_read_reg(priv, tx_error_counter); cf->data[7] = cc770_read_reg(priv, rx_error_counter); } diff --git a/drivers/net/can/ctucanfd/ctucanfd_base.c b/drivers/net/can/ctucanfd/ctucanfd_base.c index 14ac7c0ee04c..6b281f6eb9b4 100644 --- a/drivers/net/can/ctucanfd/ctucanfd_base.c +++ b/drivers/net/can/ctucanfd/ctucanfd_base.c @@ -847,7 +847,7 @@ static void ctucan_err_interrupt(struct net_device *ndev, u32 isr) case CAN_STATE_ERROR_PASSIVE: priv->can.can_stats.error_passive++; if (skb) { - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (bec.rxerr > 127) ? CAN_ERR_CRTL_RX_PASSIVE : CAN_ERR_CRTL_TX_PASSIVE; @@ -858,7 +858,7 @@ static void ctucan_err_interrupt(struct net_device *ndev, u32 isr) case CAN_STATE_ERROR_WARNING: priv->can.can_stats.error_warning++; if (skb) { - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] |= (bec.txerr > bec.rxerr) ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; @@ -867,6 +867,7 @@ static void ctucan_err_interrupt(struct net_device *ndev, u32 isr) } break; case CAN_STATE_ERROR_ACTIVE: + cf->can_id |= CAN_ERR_CNT; cf->data[1] = CAN_ERR_CRTL_ACTIVE; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c index 4c47c1055eff..24035a6187c9 100644 --- a/drivers/net/can/grcan.c +++ b/drivers/net/can/grcan.c @@ -671,6 +671,7 @@ static void grcan_err(struct net_device *dev, u32 sources, u32 status) /* There are no others at this point */ break; } + cf.can_id |= CAN_ERR_CNT; cf.data[6] = txerr; cf.data[7] = rxerr; priv->can.state = state; diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 968ed6d7316b..64e3be8b73af 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -492,7 +492,7 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev, switch (new_state) { case CAN_STATE_ERROR_WARNING: /* error warning state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (bec.txerr > bec.rxerr) ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; @@ -501,7 +501,7 @@ static int ifi_canfd_handle_state_change(struct net_device *ndev, break; case CAN_STATE_ERROR_PASSIVE: /* error passive state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE; if (bec.txerr > 127) cf->data[1] |= CAN_ERR_CRTL_TX_PASSIVE; diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 35bfb82d6929..ccb5c5405224 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1127,7 +1127,7 @@ static int ican3_handle_cevtind(struct ican3_dev *mod, struct ican3_msg *msg) /* bus error interrupt */ if (isrc == CEVTIND_BEI) { mod->can.can_stats.bus_error++; - cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; + cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR | CAN_ERR_CNT; switch (ecc & ECC_MASK) { case ECC_BIT: @@ -1153,7 +1153,7 @@ static int ican3_handle_cevtind(struct ican3_dev *mod, struct ican3_msg *msg) if (state != mod->can.state && (state == CAN_STATE_ERROR_WARNING || state == CAN_STATE_ERROR_PASSIVE)) { - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; if (state == CAN_STATE_ERROR_WARNING) { mod->can.can_stats.error_warning++; cf->data[1] = (txerr > rxerr) ? diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 017f2d36ffc3..dcd2c9d50d5e 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -1306,7 +1306,7 @@ static int kvaser_pciefd_rx_error_frame(struct kvaser_pciefd_can *can, shhwtstamps->hwtstamp = ns_to_ktime(div_u64(p->timestamp * 1000, can->kv_pcie->freq_to_ticks_div)); - cf->can_id |= CAN_ERR_BUSERROR; + cf->can_id |= CAN_ERR_BUSERROR | CAN_ERR_CNT; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index afaaeb610c00..713a4b0edf86 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -741,7 +741,7 @@ static int m_can_handle_state_change(struct net_device *dev, switch (new_state) { case CAN_STATE_ERROR_WARNING: /* error warning state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (bec.txerr > bec.rxerr) ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; @@ -750,7 +750,7 @@ static int m_can_handle_state_change(struct net_device *dev, break; case CAN_STATE_ERROR_PASSIVE: /* error passive state */ - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; ecr = m_can_read(cdev, M_CAN_ECR); if (ecr & ECR_RP) cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE; diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 497ef77340ea..50f6719b3aa4 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -497,6 +497,7 @@ static void pch_can_error(struct net_device *ndev, u32 status) priv->can.can_stats.bus_off++; can_bus_off(ndev); } else { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = errc & PCH_TEC; cf->data[7] = (errc & PCH_REC) >> 8; } diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c index b2dea360813d..afb9adb3d5c2 100644 --- a/drivers/net/can/peak_canfd/peak_canfd.c +++ b/drivers/net/can/peak_canfd/peak_canfd.c @@ -373,7 +373,7 @@ static int pucan_handle_status(struct peak_canfd_priv *priv, priv->can.state = CAN_STATE_ERROR_PASSIVE; priv->can.can_stats.error_passive++; if (skb) { - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (priv->bec.txerr > priv->bec.rxerr) ? CAN_ERR_CRTL_TX_PASSIVE : CAN_ERR_CRTL_RX_PASSIVE; @@ -386,7 +386,7 @@ static int pucan_handle_status(struct peak_canfd_priv *priv, priv->can.state = CAN_STATE_ERROR_WARNING; priv->can.can_stats.error_warning++; if (skb) { - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = (priv->bec.txerr > priv->bec.rxerr) ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; @@ -430,7 +430,7 @@ static int pucan_handle_cache_critical(struct peak_canfd_priv *priv) return -ENOMEM; } - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = CAN_ERR_CRTL_RX_OVERFLOW; cf->data[6] = priv->bec.txerr; diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index 24d7a71def6a..d11db2112a4a 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -334,6 +334,7 @@ static void rcar_can_error(struct net_device *ndev) if (skb) cf->can_id |= CAN_ERR_BUSOFF; } else if (skb) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index ba42cef10a53..e3382284e172 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -1052,7 +1052,7 @@ static void rcar_canfd_error(struct net_device *ndev, u32 cerfl, netdev_dbg(ndev, "Error warning interrupt\n"); priv->can.state = CAN_STATE_ERROR_WARNING; priv->can.can_stats.error_warning++; - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = txerr > rxerr ? CAN_ERR_CRTL_TX_WARNING : CAN_ERR_CRTL_RX_WARNING; cf->data[6] = txerr; @@ -1062,7 +1062,7 @@ static void rcar_canfd_error(struct net_device *ndev, u32 cerfl, netdev_dbg(ndev, "Error passive interrupt\n"); priv->can.state = CAN_STATE_ERROR_PASSIVE; priv->can.can_stats.error_passive++; - cf->can_id |= CAN_ERR_CRTL; + cf->can_id |= CAN_ERR_CRTL | CAN_ERR_CNT; cf->data[1] = txerr > rxerr ? CAN_ERR_CRTL_TX_PASSIVE : CAN_ERR_CRTL_RX_PASSIVE; cf->data[6] = txerr; diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 74bff5092b47..75a2f9bf8c16 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -426,6 +426,7 @@ static int sja1000_err(struct net_device *dev, uint8_t isrc, uint8_t status) state = CAN_STATE_ERROR_ACTIVE; } if (state != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } diff --git a/drivers/net/can/slcan/slcan-core.c b/drivers/net/can/slcan/slcan-core.c index dfd1baba4130..dc28e715bbe1 100644 --- a/drivers/net/can/slcan/slcan-core.c +++ b/drivers/net/can/slcan/slcan-core.c @@ -314,6 +314,7 @@ static void slc_bump_state(struct slcan *sl) if (state == CAN_STATE_BUS_OFF) { can_bus_off(dev); } else if (skb) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c index bfb7c4bb5bc3..167114aae6dd 100644 --- a/drivers/net/can/spi/hi311x.c +++ b/drivers/net/can/spi/hi311x.c @@ -680,6 +680,7 @@ static irqreturn_t hi3110_can_ist(int irq, void *dev_id) break; } } else { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c index 9b47b07162fe..f4e174cadd4e 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-core.c @@ -1099,6 +1099,7 @@ static int mcp251xfd_handle_cerrif(struct mcp251xfd_priv *priv) err = mcp251xfd_get_berr_counter(priv->ndev, &bec); if (err) return err; + cf->can_id |= CAN_ERR_CNT; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; } diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index afe9b541f037..b90dfb429ccd 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -566,6 +566,7 @@ static int sun4i_can_err(struct net_device *dev, u8 isrc, u8 status) state = CAN_STATE_ERROR_ACTIVE; } if (skb && state != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index debe17bfd0f0..afa38771520e 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -662,6 +662,7 @@ static void ti_hecc_change_state(struct net_device *ndev, can_change_state(priv->ndev, cf, tx_state, rx_state); if (max(tx_state, rx_state) != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = hecc_read(priv, HECC_CANTEC); cf->data[7] = hecc_read(priv, HECC_CANREC); } diff --git a/drivers/net/can/usb/esd_usb.c b/drivers/net/can/usb/esd_usb.c index 8a4bf2961f3d..177ed33e08d9 100644 --- a/drivers/net/can/usb/esd_usb.c +++ b/drivers/net/can/usb/esd_usb.c @@ -265,7 +265,8 @@ static void esd_usb_rx_event(struct esd_usb_net_priv *priv, priv->can.can_stats.bus_error++; stats->rx_errors++; - cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR; + cf->can_id |= CAN_ERR_PROT | CAN_ERR_BUSERROR | + CAN_ERR_CNT; switch (ecc & SJA1000_ECC_MASK) { case SJA1000_ECC_BIT: diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c index 404093468b2f..dd65c101bfb8 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_hydra.c @@ -918,6 +918,7 @@ static void kvaser_usb_hydra_update_state(struct kvaser_usb_net_priv *priv, priv->can.can_stats.restarts++; if (new_state != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = bec->txerr; cf->data[7] = bec->rxerr; } @@ -1072,6 +1073,7 @@ kvaser_usb_hydra_error_frame(struct kvaser_usb_net_priv *priv, cf->can_id |= CAN_ERR_BUSERROR; if (new_state != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = bec.txerr; cf->data[7] = bec.rxerr; } diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c index f551fde16a70..07f687f29b34 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_leaf.c @@ -854,6 +854,7 @@ static void kvaser_usb_leaf_rx_error(const struct kvaser_usb *dev, } if (new_state != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = es->txerr; cf->data[7] = es->rxerr; } diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c index 091c631ebe23..d07b7ee79e3e 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb.c @@ -506,6 +506,7 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n, /* Supply TX/RX error counters in case of * controller error. */ + cf->can_id = CAN_ERR_CNT; cf->data[6] = mc->pdev->bec.txerr; cf->data[7] = mc->pdev->bec.rxerr; } diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 4d38dc90472a..8b7cd69e20b0 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -439,6 +439,7 @@ static void usb_8dev_rx_err_msg(struct usb_8dev_priv *priv, if (rx_errors) stats->rx_errors++; if (priv->can.state != CAN_STATE_BUS_OFF) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 0de2f97d9f62..caa6b4cee63f 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -965,6 +965,7 @@ static void xcan_set_error_state(struct net_device *ndev, can_change_state(ndev, cf, tx_state, rx_state); if (cf) { + cf->can_id |= CAN_ERR_CNT; cf->data[6] = txerr; cf->data[7] = rxerr; } -- cgit v1.2.3