diff options
50 files changed, 148 insertions, 98 deletions
diff --git a/drivers/net/can/at91_can.c b/drivers/net/can/at91_can.c index 3a2d109a3792..199cb200f2bd 100644 --- a/drivers/net/can/at91_can.c +++ b/drivers/net/can/at91_can.c @@ -452,7 +452,7 @@ static netdev_tx_t at91_start_xmit(struct sk_buff *skb, struct net_device *dev) unsigned int mb, prio; u32 reg_mid, reg_mcr; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; mb = get_tx_next_mb(priv); diff --git a/drivers/net/can/c_can/c_can_main.c b/drivers/net/can/c_can/c_can_main.c index d6605dbb7737..c63f7fc1e691 100644 --- a/drivers/net/can/c_can/c_can_main.c +++ b/drivers/net/can/c_can/c_can_main.c @@ -457,7 +457,7 @@ static netdev_tx_t c_can_start_xmit(struct sk_buff *skb, struct c_can_tx_ring *tx_ring = &priv->tx; u32 idx, obj, cmd = IF_COMM_TX; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; if (c_can_tx_busy(priv, tx_ring)) diff --git a/drivers/net/can/can327.c b/drivers/net/can/can327.c index 0aa1af31d0fe..094197780776 100644 --- a/drivers/net/can/can327.c +++ b/drivers/net/can/can327.c @@ -813,7 +813,7 @@ static netdev_tx_t can327_netdev_start_xmit(struct sk_buff *skb, struct can327 *elm = netdev_priv(dev); struct can_frame *frame = (struct can_frame *)skb->data; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; /* We shouldn't get here after a hardware fault: diff --git a/drivers/net/can/cc770/cc770.c b/drivers/net/can/cc770/cc770.c index 0b9dfc76e769..30909f3aab57 100644 --- a/drivers/net/can/cc770/cc770.c +++ b/drivers/net/can/cc770/cc770.c @@ -429,7 +429,7 @@ static netdev_tx_t cc770_start_xmit(struct sk_buff *skb, struct net_device *dev) struct cc770_priv *priv = netdev_priv(dev); unsigned int mo = obj2msgobj(CC770_OBJ_TX); - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/ctucanfd/ctucanfd_base.c b/drivers/net/can/ctucanfd/ctucanfd_base.c index b8da15ea6ad9..64c349fd4600 100644 --- a/drivers/net/can/ctucanfd/ctucanfd_base.c +++ b/drivers/net/can/ctucanfd/ctucanfd_base.c @@ -600,7 +600,7 @@ static netdev_tx_t ctucan_start_xmit(struct sk_buff *skb, struct net_device *nde bool ok; unsigned long flags; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (unlikely(!CTU_CAN_FD_TXTNF(priv))) { diff --git a/drivers/net/can/dev/skb.c b/drivers/net/can/dev/skb.c index 791a51e2f5d6..241ec636e91f 100644 --- a/drivers/net/can/dev/skb.c +++ b/drivers/net/can/dev/skb.c @@ -5,7 +5,6 @@ */ #include <linux/can/dev.h> -#include <linux/can/netlink.h> #include <linux/module.h> #define MOD_DESC "CAN device driver interface" @@ -337,8 +336,6 @@ static bool can_skb_headroom_valid(struct net_device *dev, struct sk_buff *skb) /* Drop a given socketbuffer if it does not contain a valid CAN frame. */ bool can_dropped_invalid_skb(struct net_device *dev, struct sk_buff *skb) { - struct can_priv *priv = netdev_priv(dev); - switch (ntohs(skb->protocol)) { case ETH_P_CAN: if (!can_is_can_skb(skb)) @@ -359,13 +356,8 @@ bool can_dropped_invalid_skb(struct net_device *dev, struct sk_buff *skb) goto inval_skb; } - if (!can_skb_headroom_valid(dev, skb)) { + if (!can_skb_headroom_valid(dev, skb)) goto inval_skb; - } else if (priv->ctrlmode & CAN_CTRLMODE_LISTENONLY) { - netdev_info_once(dev, - "interface in listen only mode, dropping skb\n"); - goto inval_skb; - } return false; diff --git a/drivers/net/can/flexcan/flexcan-core.c b/drivers/net/can/flexcan/flexcan-core.c index 5ee38e586fd8..9bdadd716f4e 100644 --- a/drivers/net/can/flexcan/flexcan-core.c +++ b/drivers/net/can/flexcan/flexcan-core.c @@ -742,7 +742,7 @@ static netdev_tx_t flexcan_start_xmit(struct sk_buff *skb, struct net_device *de u32 ctrl = FLEXCAN_MB_CODE_TX_DATA | ((can_fd_len2dlc(cfd->len)) << 16); int i; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/grcan.c b/drivers/net/can/grcan.c index 6c37aab93eb3..4bedcc3eea0d 100644 --- a/drivers/net/can/grcan.c +++ b/drivers/net/can/grcan.c @@ -1345,7 +1345,7 @@ static netdev_tx_t grcan_start_xmit(struct sk_buff *skb, unsigned long flags; u32 oneshotmode = priv->can.ctrlmode & CAN_CTRLMODE_ONE_SHOT; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; /* Trying to transmit in silent mode will generate error interrupts, but diff --git a/drivers/net/can/ifi_canfd/ifi_canfd.c b/drivers/net/can/ifi_canfd/ifi_canfd.c index 8d42b7e6661f..07eaf724a572 100644 --- a/drivers/net/can/ifi_canfd/ifi_canfd.c +++ b/drivers/net/can/ifi_canfd/ifi_canfd.c @@ -860,7 +860,7 @@ static netdev_tx_t ifi_canfd_start_xmit(struct sk_buff *skb, u32 txst, txid, txdlc; int i; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; /* Check if the TX buffer is full */ diff --git a/drivers/net/can/janz-ican3.c b/drivers/net/can/janz-ican3.c index 71a2caae0757..0732a5092141 100644 --- a/drivers/net/can/janz-ican3.c +++ b/drivers/net/can/janz-ican3.c @@ -1693,7 +1693,7 @@ static netdev_tx_t ican3_xmit(struct sk_buff *skb, struct net_device *ndev) void __iomem *desc_addr; unsigned long flags; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; spin_lock_irqsave(&mod->lock, flags); diff --git a/drivers/net/can/kvaser_pciefd.c b/drivers/net/can/kvaser_pciefd.c index 4e9680c8eb34..bcad11709bc9 100644 --- a/drivers/net/can/kvaser_pciefd.c +++ b/drivers/net/can/kvaser_pciefd.c @@ -772,7 +772,7 @@ static netdev_tx_t kvaser_pciefd_start_xmit(struct sk_buff *skb, int nwords; u8 count; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; nwords = kvaser_pciefd_prepare_tx_packet(&packet, can, skb); diff --git a/drivers/net/can/m_can/m_can.c b/drivers/net/can/m_can/m_can.c index dcb582563d5e..00d11e95fd98 100644 --- a/drivers/net/can/m_can/m_can.c +++ b/drivers/net/can/m_can/m_can.c @@ -1721,7 +1721,7 @@ static netdev_tx_t m_can_start_xmit(struct sk_buff *skb, { struct m_can_classdev *cdev = netdev_priv(dev); - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; if (cdev->is_peripheral) { diff --git a/drivers/net/can/mscan/mscan.c b/drivers/net/can/mscan/mscan.c index 2119fbb287ef..a6829cdc0e81 100644 --- a/drivers/net/can/mscan/mscan.c +++ b/drivers/net/can/mscan/mscan.c @@ -191,7 +191,7 @@ static netdev_tx_t mscan_start_xmit(struct sk_buff *skb, struct net_device *dev) int i, rtr, buf_id; u32 can_id; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; out_8(®s->cantier, 0); diff --git a/drivers/net/can/pch_can.c b/drivers/net/can/pch_can.c index 0558ff67ec6a..2a44b2803e55 100644 --- a/drivers/net/can/pch_can.c +++ b/drivers/net/can/pch_can.c @@ -882,7 +882,7 @@ static netdev_tx_t pch_xmit(struct sk_buff *skb, struct net_device *ndev) int i; u32 id2; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; tx_obj_no = priv->tx_obj; diff --git a/drivers/net/can/peak_canfd/peak_canfd.c b/drivers/net/can/peak_canfd/peak_canfd.c index f8420cc1d907..31c9c127e24b 100644 --- a/drivers/net/can/peak_canfd/peak_canfd.c +++ b/drivers/net/can/peak_canfd/peak_canfd.c @@ -651,7 +651,7 @@ static netdev_tx_t peak_canfd_start_xmit(struct sk_buff *skb, int room_left; u8 len; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; msg_size = ALIGN(sizeof(*msg) + cf->len, 4); diff --git a/drivers/net/can/rcar/rcar_can.c b/drivers/net/can/rcar/rcar_can.c index 6ee968c59ac9..cc43c9c5e38c 100644 --- a/drivers/net/can/rcar/rcar_can.c +++ b/drivers/net/can/rcar/rcar_can.c @@ -590,7 +590,7 @@ static netdev_tx_t rcar_can_start_xmit(struct sk_buff *skb, struct can_frame *cf = (struct can_frame *)skb->data; u32 data, i; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (cf->can_id & CAN_EFF_FLAG) /* Extended frame format */ diff --git a/drivers/net/can/rcar/rcar_canfd.c b/drivers/net/can/rcar/rcar_canfd.c index 198da643ee6d..b306cf554634 100644 --- a/drivers/net/can/rcar/rcar_canfd.c +++ b/drivers/net/can/rcar/rcar_canfd.c @@ -81,8 +81,7 @@ enum rcanfd_chip_id { /* RSCFDnCFDGERFL / RSCFDnGERFL */ #define RCANFD_GERFL_EEF0_7 GENMASK(23, 16) -#define RCANFD_GERFL_EEF1 BIT(17) -#define RCANFD_GERFL_EEF0 BIT(16) +#define RCANFD_GERFL_EEF(ch) BIT(16 + (ch)) #define RCANFD_GERFL_CMPOF BIT(3) /* CAN FD only */ #define RCANFD_GERFL_THLES BIT(2) #define RCANFD_GERFL_MES BIT(1) @@ -90,7 +89,7 @@ enum rcanfd_chip_id { #define RCANFD_GERFL_ERR(gpriv, x) \ ((x) & (reg_v3u(gpriv, RCANFD_GERFL_EEF0_7, \ - RCANFD_GERFL_EEF0 | RCANFD_GERFL_EEF1) | \ + RCANFD_GERFL_EEF(0) | RCANFD_GERFL_EEF(1)) | \ RCANFD_GERFL_MES | \ ((gpriv)->fdmode ? RCANFD_GERFL_CMPOF : 0))) @@ -936,12 +935,8 @@ static void rcar_canfd_global_error(struct net_device *ndev) u32 ridx = ch + RCANFD_RFFIFO_IDX; gerfl = rcar_canfd_read(priv->base, RCANFD_GERFL); - if ((gerfl & RCANFD_GERFL_EEF0) && (ch == 0)) { - netdev_dbg(ndev, "Ch0: ECC Error flag\n"); - stats->tx_dropped++; - } - if ((gerfl & RCANFD_GERFL_EEF1) && (ch == 1)) { - netdev_dbg(ndev, "Ch1: ECC Error flag\n"); + if (gerfl & RCANFD_GERFL_EEF(ch)) { + netdev_dbg(ndev, "Ch%u: ECC Error flag\n", ch); stats->tx_dropped++; } if (gerfl & RCANFD_GERFL_MES) { @@ -1481,7 +1476,7 @@ static netdev_tx_t rcar_canfd_start_xmit(struct sk_buff *skb, unsigned long flags; u32 ch = priv->channel; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (cf->can_id & CAN_EFF_FLAG) { diff --git a/drivers/net/can/sja1000/sja1000.c b/drivers/net/can/sja1000/sja1000.c index 1bb1129b0450..aac5956e4a53 100644 --- a/drivers/net/can/sja1000/sja1000.c +++ b/drivers/net/can/sja1000/sja1000.c @@ -291,7 +291,7 @@ static netdev_tx_t sja1000_start_xmit(struct sk_buff *skb, u8 cmd_reg_val = 0x00; int i; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/slcan/slcan-core.c b/drivers/net/can/slcan/slcan-core.c index 8d13fdf8c28a..fbb34139daa1 100644 --- a/drivers/net/can/slcan/slcan-core.c +++ b/drivers/net/can/slcan/slcan-core.c @@ -594,7 +594,7 @@ static netdev_tx_t slcan_netdev_xmit(struct sk_buff *skb, { struct slcan *sl = netdev_priv(dev); - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; spin_lock(&sl->lock); diff --git a/drivers/net/can/softing/softing_main.c b/drivers/net/can/softing/softing_main.c index a5ef57f415f7..c72f505d29fe 100644 --- a/drivers/net/can/softing/softing_main.c +++ b/drivers/net/can/softing/softing_main.c @@ -60,7 +60,7 @@ static netdev_tx_t softing_netdev_start_xmit(struct sk_buff *skb, struct can_frame *cf = (struct can_frame *)skb->data; uint8_t buf[DPRAM_TX_SIZE]; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; spin_lock(&card->spin); diff --git a/drivers/net/can/spi/hi311x.c b/drivers/net/can/spi/hi311x.c index b87dc420428d..e1b8533a602e 100644 --- a/drivers/net/can/spi/hi311x.c +++ b/drivers/net/can/spi/hi311x.c @@ -373,7 +373,7 @@ static netdev_tx_t hi3110_hard_start_xmit(struct sk_buff *skb, return NETDEV_TX_BUSY; } - if (can_dropped_invalid_skb(net, skb)) + if (can_dev_dropped_skb(net, skb)) return NETDEV_TX_OK; netif_stop_queue(net); diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c index 24883a65ca66..79c4bab5f724 100644 --- a/drivers/net/can/spi/mcp251x.c +++ b/drivers/net/can/spi/mcp251x.c @@ -789,7 +789,7 @@ static netdev_tx_t mcp251x_hard_start_xmit(struct sk_buff *skb, return NETDEV_TX_BUSY; } - if (can_dropped_invalid_skb(net, skb)) + if (can_dev_dropped_skb(net, skb)) return NETDEV_TX_OK; netif_stop_queue(net); diff --git a/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c b/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c index ffb6c36b7d9b..160528d3cc26 100644 --- a/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c +++ b/drivers/net/can/spi/mcp251xfd/mcp251xfd-tx.c @@ -172,7 +172,7 @@ netdev_tx_t mcp251xfd_start_xmit(struct sk_buff *skb, u8 tx_head; int err; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (mcp251xfd_tx_busy(priv, tx_ring)) diff --git a/drivers/net/can/sun4i_can.c b/drivers/net/can/sun4i_can.c index 525309da1320..2b78f9197681 100644 --- a/drivers/net/can/sun4i_can.c +++ b/drivers/net/can/sun4i_can.c @@ -429,7 +429,7 @@ static netdev_tx_t sun4ican_start_xmit(struct sk_buff *skb, struct net_device *d canid_t id; int i; - if (can_dropped_invalid_skb(dev, skb)) + if (can_dev_dropped_skb(dev, skb)) return NETDEV_TX_OK; netif_stop_queue(dev); diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c index b218fb3c6b76..27700f72eac2 100644 --- a/drivers/net/can/ti_hecc.c +++ b/drivers/net/can/ti_hecc.c @@ -470,7 +470,7 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev) u32 mbxno, mbx_mask, data; unsigned long flags; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; mbxno = get_tx_head_mb(priv); diff --git a/drivers/net/can/usb/ems_usb.c b/drivers/net/can/usb/ems_usb.c index d31191686a54..050c0b49938a 100644 --- a/drivers/net/can/usb/ems_usb.c +++ b/drivers/net/can/usb/ems_usb.c @@ -747,7 +747,7 @@ static netdev_tx_t ems_usb_start_xmit(struct sk_buff *skb, struct net_device *ne size_t size = CPC_HEADER_SIZE + CPC_MSG_HEADER_LEN + sizeof(struct cpc_can_msg); - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* create a URB, and a buffer for it, and copy the data to the URB */ diff --git a/drivers/net/can/usb/esd_usb.c b/drivers/net/can/usb/esd_usb.c index 1bcfad11b1e4..81b88e9e5bdc 100644 --- a/drivers/net/can/usb/esd_usb.c +++ b/drivers/net/can/usb/esd_usb.c @@ -725,7 +725,7 @@ static netdev_tx_t esd_usb_start_xmit(struct sk_buff *skb, int ret = NETDEV_TX_OK; size_t size = sizeof(struct esd_usb_msg); - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* create a URB, and a buffer for it, and copy the data to the URB */ diff --git a/drivers/net/can/usb/etas_es58x/es58x_core.c b/drivers/net/can/usb/etas_es58x/es58x_core.c index 51294b717040..25f863b4f5f0 100644 --- a/drivers/net/can/usb/etas_es58x/es58x_core.c +++ b/drivers/net/can/usb/etas_es58x/es58x_core.c @@ -1913,7 +1913,7 @@ static netdev_tx_t es58x_start_xmit(struct sk_buff *skb, unsigned int frame_len; int ret; - if (can_dropped_invalid_skb(netdev, skb)) { + if (can_dev_dropped_skb(netdev, skb)) { if (priv->tx_urb) goto xmit_commit; return NETDEV_TX_OK; diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c index f0065d40eb24..9c2c25fde3d1 100644 --- a/drivers/net/can/usb/gs_usb.c +++ b/drivers/net/can/usb/gs_usb.c @@ -723,7 +723,7 @@ static netdev_tx_t gs_can_start_xmit(struct sk_buff *skb, unsigned int idx; struct gs_tx_context *txc; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* find an empty context to keep track of transmission */ diff --git a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c index e91648ed7386..802e27c0eced 100644 --- a/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c +++ b/drivers/net/can/usb/kvaser_usb/kvaser_usb_core.c @@ -570,7 +570,7 @@ static netdev_tx_t kvaser_usb_start_xmit(struct sk_buff *skb, unsigned int i; unsigned long flags; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; urb = usb_alloc_urb(0, GFP_ATOMIC); diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c index 69346c63021f..218b098b261d 100644 --- a/drivers/net/can/usb/mcba_usb.c +++ b/drivers/net/can/usb/mcba_usb.c @@ -311,7 +311,7 @@ static netdev_tx_t mcba_usb_start_xmit(struct sk_buff *skb, .cmd_id = MBCA_CMD_TRANSMIT_MESSAGE_EV }; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; ctx = mcba_usb_get_free_ctx(priv, cf); diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c index 225697d70a9a..1d996d3320fe 100644 --- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c +++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c @@ -351,7 +351,7 @@ static netdev_tx_t peak_usb_ndo_start_xmit(struct sk_buff *skb, int i, err; size_t size = dev->adapter->tx_buffer_size; - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; for (i = 0; i < PCAN_USB_MAX_TX_URBS; i++) diff --git a/drivers/net/can/usb/ucan.c b/drivers/net/can/usb/ucan.c index 7c35f50fda4e..67c2ff407d06 100644 --- a/drivers/net/can/usb/ucan.c +++ b/drivers/net/can/usb/ucan.c @@ -1120,7 +1120,7 @@ static netdev_tx_t ucan_start_xmit(struct sk_buff *skb, struct can_frame *cf = (struct can_frame *)skb->data; /* check skb */ - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* allocate a context and slow down tx path, if fifo state is low */ diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c index 64c00abe91cf..8a5596ce4e46 100644 --- a/drivers/net/can/usb/usb_8dev.c +++ b/drivers/net/can/usb/usb_8dev.c @@ -602,7 +602,7 @@ static netdev_tx_t usb_8dev_start_xmit(struct sk_buff *skb, int i, err; size_t size = sizeof(struct usb_8dev_tx_msg); - if (can_dropped_invalid_skb(netdev, skb)) + if (can_dev_dropped_skb(netdev, skb)) return NETDEV_TX_OK; /* create a URB, and a buffer for it, and copy the data to the URB */ diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c index 5d3172795ad0..43c812ea1de0 100644 --- a/drivers/net/can/xilinx_can.c +++ b/drivers/net/can/xilinx_can.c @@ -743,7 +743,7 @@ static netdev_tx_t xcan_start_xmit(struct sk_buff *skb, struct net_device *ndev) struct xcan_priv *priv = netdev_priv(ndev); int ret; - if (can_dropped_invalid_skb(ndev, skb)) + if (can_dev_dropped_skb(ndev, skb)) return NETDEV_TX_OK; if (priv->devtype.flags & XCAN_FLAG_TX_MAILBOXES) diff --git a/drivers/net/ethernet/ibm/ibmveth.c b/drivers/net/ethernet/ibm/ibmveth.c index 3b14dc93f59d..5b96cd94dcd2 100644 --- a/drivers/net/ethernet/ibm/ibmveth.c +++ b/drivers/net/ethernet/ibm/ibmveth.c @@ -1757,7 +1757,8 @@ static int ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) kobject_uevent(kobj, KOBJ_ADD); } - rc = netif_set_real_num_tx_queues(netdev, ibmveth_real_max_tx_queues()); + rc = netif_set_real_num_tx_queues(netdev, min(num_online_cpus(), + IBMVETH_DEFAULT_QUEUES)); if (rc) { netdev_dbg(netdev, "failed to set number of tx queues rc=%d\n", rc); diff --git a/drivers/net/ethernet/ibm/ibmveth.h b/drivers/net/ethernet/ibm/ibmveth.h index daf6f615c03f..115d4c45aa77 100644 --- a/drivers/net/ethernet/ibm/ibmveth.h +++ b/drivers/net/ethernet/ibm/ibmveth.h @@ -100,6 +100,7 @@ static inline long h_illan_attributes(unsigned long unit_address, #define IBMVETH_MAX_BUF_SIZE (1024 * 128) #define IBMVETH_MAX_TX_BUF_SIZE (1024 * 64) #define IBMVETH_MAX_QUEUES 16U +#define IBMVETH_DEFAULT_QUEUES 8U static int pool_size[] = { 512, 1024 * 2, 1024 * 16, 1024 * 32, 1024 * 64 }; static int pool_count[] = { 256, 512, 256, 256, 256 }; diff --git a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c index 42ee963e9f75..9277a8fd1339 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_rxtx.c @@ -776,6 +776,7 @@ tx_done: int prestera_rxtx_switch_init(struct prestera_switch *sw) { struct prestera_rxtx *rxtx; + int err; rxtx = kzalloc(sizeof(*rxtx), GFP_KERNEL); if (!rxtx) @@ -783,7 +784,11 @@ int prestera_rxtx_switch_init(struct prestera_switch *sw) sw->rxtx = rxtx; - return prestera_sdma_switch_init(sw); + err = prestera_sdma_switch_init(sw); + if (err) + kfree(rxtx); + + return err; } void prestera_rxtx_switch_fini(struct prestera_switch *sw) diff --git a/drivers/net/ethernet/ni/nixge.c b/drivers/net/ethernet/ni/nixge.c index 3db4a2431741..19d043b593cc 100644 --- a/drivers/net/ethernet/ni/nixge.c +++ b/drivers/net/ethernet/ni/nixge.c @@ -900,6 +900,7 @@ static int nixge_open(struct net_device *ndev) err_rx_irq: free_irq(priv->tx_irq, ndev); err_tx_irq: + napi_disable(&priv->napi); phy_stop(phy); phy_disconnect(phy); tasklet_kill(&priv->dma_err_tasklet); diff --git a/drivers/net/tun.c b/drivers/net/tun.c index eb12f3136a54..7a3ab3427369 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1967,18 +1967,25 @@ drop: skb_headlen(skb)); if (unlikely(headlen > skb_headlen(skb))) { + WARN_ON_ONCE(1); + err = -ENOMEM; dev_core_stats_rx_dropped_inc(tun->dev); +napi_busy: napi_free_frags(&tfile->napi); rcu_read_unlock(); mutex_unlock(&tfile->napi_mutex); - WARN_ON(1); - return -ENOMEM; + return err; } - local_bh_disable(); - napi_gro_frags(&tfile->napi); - napi_complete(&tfile->napi); - local_bh_enable(); + if (likely(napi_schedule_prep(&tfile->napi))) { + local_bh_disable(); + napi_gro_frags(&tfile->napi); + napi_complete(&tfile->napi); + local_bh_enable(); + } else { + err = -EBUSY; + goto napi_busy; + } mutex_unlock(&tfile->napi_mutex); } else if (tfile->napi_enabled) { struct sk_buff_head *queue = &tfile->sk.sk_write_queue; diff --git a/drivers/net/wwan/Kconfig b/drivers/net/wwan/Kconfig index 3486ffe94ac4..ac4d73b5626f 100644 --- a/drivers/net/wwan/Kconfig +++ b/drivers/net/wwan/Kconfig @@ -94,7 +94,7 @@ config RPMSG_WWAN_CTRL config IOSM tristate "IOSM Driver for Intel M.2 WWAN Device" - depends on INTEL_IOMMU + depends on PCI select NET_DEVLINK select RELAY if WWAN_DEBUGFS help diff --git a/drivers/net/wwan/iosm/iosm_ipc_coredump.c b/drivers/net/wwan/iosm/iosm_ipc_coredump.c index 9acd87724c9d..26ca30476f40 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_coredump.c +++ b/drivers/net/wwan/iosm/iosm_ipc_coredump.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2020-2021 Intel Corporation. */ +#include <linux/vmalloc.h> #include "iosm_ipc_coredump.h" diff --git a/drivers/net/wwan/iosm/iosm_ipc_devlink.c b/drivers/net/wwan/iosm/iosm_ipc_devlink.c index 17da85a8f337..2fe724d623c0 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_devlink.c +++ b/drivers/net/wwan/iosm/iosm_ipc_devlink.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2020-2021 Intel Corporation. */ +#include <linux/vmalloc.h> #include "iosm_ipc_chnl_cfg.h" #include "iosm_ipc_coredump.h" diff --git a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c index b7f9237dedf7..66b90cc4c346 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c +++ b/drivers/net/wwan/iosm/iosm_ipc_imem_ops.c @@ -91,6 +91,14 @@ void ipc_imem_wwan_channel_init(struct iosm_imem *ipc_imem, } ipc_chnl_cfg_get(&chnl_cfg, ipc_imem->nr_of_channels); + + if (ipc_imem->mmio->mux_protocol == MUX_AGGREGATION && + ipc_imem->nr_of_channels == IPC_MEM_IP_CHL_ID_0) { + chnl_cfg.ul_nr_of_entries = IPC_MEM_MAX_TDS_MUX_AGGR_UL; + chnl_cfg.dl_nr_of_entries = IPC_MEM_MAX_TDS_MUX_AGGR_DL; + chnl_cfg.dl_buf_size = IPC_MEM_MAX_ADB_BUF_SIZE; + } + ipc_imem_channel_init(ipc_imem, IPC_CTYPE_WWAN, chnl_cfg, IRQ_MOD_OFF); diff --git a/drivers/net/wwan/iosm/iosm_ipc_mux.h b/drivers/net/wwan/iosm/iosm_ipc_mux.h index cd9d74cc097f..9968bb885c1f 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_mux.h +++ b/drivers/net/wwan/iosm/iosm_ipc_mux.h @@ -10,6 +10,7 @@ #define IPC_MEM_MAX_UL_DG_ENTRIES 100 #define IPC_MEM_MAX_TDS_MUX_AGGR_UL 60 +#define IPC_MEM_MAX_TDS_MUX_AGGR_DL 60 #define IPC_MEM_MAX_ADB_BUF_SIZE (16 * 1024) #define IPC_MEM_MAX_UL_ADB_BUF_SIZE IPC_MEM_MAX_ADB_BUF_SIZE diff --git a/drivers/net/wwan/iosm/iosm_ipc_pcie.c b/drivers/net/wwan/iosm/iosm_ipc_pcie.c index 31f57b986df2..d3d34d1c4704 100644 --- a/drivers/net/wwan/iosm/iosm_ipc_pcie.c +++ b/drivers/net/wwan/iosm/iosm_ipc_pcie.c @@ -232,6 +232,7 @@ static void ipc_pcie_config_init(struct iosm_pcie *ipc_pcie) */ static enum ipc_pcie_sleep_state ipc_pcie_read_bios_cfg(struct device *dev) { + enum ipc_pcie_sleep_state sleep_state = IPC_PCIE_D0L12; union acpi_object *object; acpi_handle handle_acpi; @@ -242,18 +243,23 @@ static enum ipc_pcie_sleep_state ipc_pcie_read_bios_cfg(struct device *dev) } object = acpi_evaluate_dsm(handle_acpi, &wwan_acpi_guid, 0, 3, NULL); + if (!object) + goto default_ret; + + if (object->integer.value == 3) + sleep_state = IPC_PCIE_D3L2; - if (object && object->integer.value == 3) - return IPC_PCIE_D3L2; + kfree(object); default_ret: - return IPC_PCIE_D0L12; + return sleep_state; } static int ipc_pcie_probe(struct pci_dev *pci, const struct pci_device_id *pci_id) { struct iosm_pcie *ipc_pcie = kzalloc(sizeof(*ipc_pcie), GFP_KERNEL); + int ret; pr_debug("Probing device 0x%X from the vendor 0x%X", pci_id->device, pci_id->vendor); @@ -286,6 +292,12 @@ static int ipc_pcie_probe(struct pci_dev *pci, goto pci_enable_fail; } + ret = dma_set_mask(ipc_pcie->dev, DMA_BIT_MASK(64)); + if (ret) { + dev_err(ipc_pcie->dev, "Could not set PCI DMA mask: %d", ret); + return ret; + } + ipc_pcie_config_aspm(ipc_pcie); dev_dbg(ipc_pcie->dev, "PCIe device enabled."); diff --git a/include/linux/can/dev.h b/include/linux/can/dev.h index 58f5431a5559..982ba245eb41 100644 --- a/include/linux/can/dev.h +++ b/include/linux/can/dev.h @@ -152,6 +152,22 @@ static inline bool can_is_canxl_dev_mtu(unsigned int mtu) return (mtu >= CANXL_MIN_MTU && mtu <= CANXL_MAX_MTU); } +/* drop skb if it does not contain a valid CAN frame for sending */ +static inline bool can_dev_dropped_skb(struct net_device *dev, struct sk_buff *skb) +{ + struct can_priv *priv = netdev_priv(dev); + + if (priv->ctrlmode & CAN_CTRLMODE_LISTENONLY) { + netdev_info_once(dev, + "interface in listen only mode, dropping skb\n"); + kfree_skb(skb); + dev->stats.tx_dropped++; + return true; + } + + return can_dropped_invalid_skb(dev, skb); +} + void can_setup(struct net_device *dev); struct net_device *alloc_candev_mqs(int sizeof_priv, unsigned int echo_skb_max, diff --git a/net/can/af_can.c b/net/can/af_can.c index 9503ab10f9b8..27dcdcc0b808 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -450,7 +450,7 @@ int can_rx_register(struct net *net, struct net_device *dev, canid_t can_id, /* insert new receiver (dev,canid,mask) -> (func,data) */ - if (dev && dev->type != ARPHRD_CAN) + if (dev && (dev->type != ARPHRD_CAN || !can_get_ml_priv(dev))) return -ENODEV; if (dev && !net_eq(net, dev_net(dev))) @@ -902,6 +902,7 @@ out_pernet: static __exit void can_exit(void) { /* protocol unregister */ + dev_remove_pack(&canxl_packet); dev_remove_pack(&canfd_packet); dev_remove_pack(&can_packet); sock_unregister(PF_CAN); diff --git a/net/can/isotp.c b/net/can/isotp.c index a9d1357f8489..608f8c24ae46 100644 --- a/net/can/isotp.c +++ b/net/can/isotp.c @@ -111,6 +111,9 @@ MODULE_ALIAS("can-proto-6"); #define ISOTP_FC_WT 1 /* wait */ #define ISOTP_FC_OVFLW 2 /* overflow */ +#define ISOTP_FC_TIMEOUT 1 /* 1 sec */ +#define ISOTP_ECHO_TIMEOUT 2 /* 2 secs */ + enum { ISOTP_IDLE = 0, ISOTP_WAIT_FIRST_FC, @@ -258,7 +261,8 @@ static int isotp_send_fc(struct sock *sk, int ae, u8 flowstatus) so->lastrxcf_tstamp = ktime_set(0, 0); /* start rx timeout watchdog */ - hrtimer_start(&so->rxtimer, ktime_set(1, 0), HRTIMER_MODE_REL_SOFT); + hrtimer_start(&so->rxtimer, ktime_set(ISOTP_FC_TIMEOUT, 0), + HRTIMER_MODE_REL_SOFT); return 0; } @@ -344,6 +348,8 @@ static int check_pad(struct isotp_sock *so, struct canfd_frame *cf, return 0; } +static void isotp_send_cframe(struct isotp_sock *so); + static int isotp_rcv_fc(struct isotp_sock *so, struct canfd_frame *cf, int ae) { struct sock *sk = &so->sk; @@ -398,14 +404,15 @@ static int isotp_rcv_fc(struct isotp_sock *so, struct canfd_frame *cf, int ae) case ISOTP_FC_CTS: so->tx.bs = 0; so->tx.state = ISOTP_SENDING; - /* start cyclic timer for sending CF frame */ - hrtimer_start(&so->txtimer, so->tx_gap, + /* send CF frame and enable echo timeout handling */ + hrtimer_start(&so->txtimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); + isotp_send_cframe(so); break; case ISOTP_FC_WT: /* start timer to wait for next FC frame */ - hrtimer_start(&so->txtimer, ktime_set(1, 0), + hrtimer_start(&so->txtimer, ktime_set(ISOTP_FC_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); break; @@ -600,7 +607,7 @@ static int isotp_rcv_cf(struct sock *sk, struct canfd_frame *cf, int ae, /* perform blocksize handling, if enabled */ if (!so->rxfc.bs || ++so->rx.bs < so->rxfc.bs) { /* start rx timeout watchdog */ - hrtimer_start(&so->rxtimer, ktime_set(1, 0), + hrtimer_start(&so->rxtimer, ktime_set(ISOTP_FC_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); return 0; } @@ -829,7 +836,7 @@ static void isotp_rcv_echo(struct sk_buff *skb, void *data) struct isotp_sock *so = isotp_sk(sk); struct canfd_frame *cf = (struct canfd_frame *)skb->data; - /* only handle my own local echo skb's */ + /* only handle my own local echo CF/SF skb's (no FF!) */ if (skb->sk != sk || so->cfecho != *(u32 *)cf->data) return; @@ -849,13 +856,16 @@ static void isotp_rcv_echo(struct sk_buff *skb, void *data) if (so->txfc.bs && so->tx.bs >= so->txfc.bs) { /* stop and wait for FC with timeout */ so->tx.state = ISOTP_WAIT_FC; - hrtimer_start(&so->txtimer, ktime_set(1, 0), + hrtimer_start(&so->txtimer, ktime_set(ISOTP_FC_TIMEOUT, 0), HRTIMER_MODE_REL_SOFT); return; } /* no gap between data frames needed => use burst mode */ if (!so->tx_gap) { + /* enable echo timeout handling */ + hrtimer_start(&so->txtimer, ktime_set(ISOTP_ECHO_TIMEOUT, 0), + HRTIMER_MODE_REL_SOFT); isotp_send_cframe(so); return; } @@ -879,7 +889,7 @@ static enum hrtimer_restart isotp_tx_timer_handler(struct hrtimer *hrtimer) /* start timeout for unlikely lost echo skb */ hrtimer_set_expires(&so->txtimer, ktime_add(ktime_get(), - ktime_set(2, 0))); + ktime_set(ISOTP_ECHO_TIMEOUT, 0))); restart = HRTIMER_RESTART; /* push out the next consecutive frame */ @@ -907,7 +917,8 @@ static enum hrtimer_restart isotp_tx_timer_handler(struct hrtimer *hrtimer) break; default: - WARN_ON_ONCE(1); + WARN_ONCE(1, "can-isotp: tx timer state %08X cfecho %08X\n", + so->tx.state, so->cfecho); } return restart; @@ -923,7 +934,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) struct canfd_frame *cf; int ae = (so->opt.flags & CAN_ISOTP_EXTEND_ADDR) ? 1 : 0; int wait_tx_done = (so->opt.flags & CAN_ISOTP_WAIT_TX_DONE) ? 1 : 0; - s64 hrtimer_sec = 0; + s64 hrtimer_sec = ISOTP_ECHO_TIMEOUT; int off; int err; @@ -942,6 +953,8 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) err = wait_event_interruptible(so->wait, so->tx.state == ISOTP_IDLE); if (err) goto err_out; + + so->tx.state = ISOTP_SENDING; } if (!size || size > MAX_MSG_LENGTH) { @@ -986,6 +999,10 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) cf = (struct canfd_frame *)skb->data; skb_put_zero(skb, so->ll.mtu); + /* cfecho should have been zero'ed by init / former isotp_rcv_echo() */ + if (so->cfecho) + pr_notice_once("can-isotp: uninit cfecho %08X\n", so->cfecho); + /* check for single frame transmission depending on TX_DL */ if (size <= so->tx.ll_dl - SF_PCI_SZ4 - ae - off) { /* The message size generally fits into a SingleFrame - good. @@ -1011,11 +1028,8 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) else cf->data[ae] |= size; - so->tx.state = ISOTP_IDLE; - wake_up_interruptible(&so->wait); - - /* don't enable wait queue for a single frame transmission */ - wait_tx_done = 0; + /* set CF echo tag for isotp_rcv_echo() (SF-mode) */ + so->cfecho = *(u32 *)cf->data; } else { /* send first frame */ @@ -1031,31 +1045,23 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) /* disable wait for FCs due to activated block size */ so->txfc.bs = 0; - /* cfecho should have been zero'ed by init */ - if (so->cfecho) - pr_notice_once("can-isotp: no fc cfecho %08X\n", - so->cfecho); - - /* set consecutive frame echo tag */ + /* set CF echo tag for isotp_rcv_echo() (CF-mode) */ so->cfecho = *(u32 *)cf->data; - - /* switch directly to ISOTP_SENDING state */ - so->tx.state = ISOTP_SENDING; - - /* start timeout for unlikely lost echo skb */ - hrtimer_sec = 2; } else { /* standard flow control check */ so->tx.state = ISOTP_WAIT_FIRST_FC; /* start timeout for FC */ - hrtimer_sec = 1; - } + hrtimer_sec = ISOTP_FC_TIMEOUT; - hrtimer_start(&so->txtimer, ktime_set(hrtimer_sec, 0), - HRTIMER_MODE_REL_SOFT); + /* no CF echo tag for isotp_rcv_echo() (FF-mode) */ + so->cfecho = 0; + } } + hrtimer_start(&so->txtimer, ktime_set(hrtimer_sec, 0), + HRTIMER_MODE_REL_SOFT); + /* send the first or only CAN frame */ cf->flags = so->ll.tx_flags; @@ -1068,8 +1074,7 @@ static int isotp_sendmsg(struct socket *sock, struct msghdr *msg, size_t size) __func__, ERR_PTR(err)); /* no transmission -> no timeout monitoring */ - if (hrtimer_sec) - hrtimer_cancel(&so->txtimer); + hrtimer_cancel(&so->txtimer); /* reset consecutive frame echo tag */ so->cfecho = 0; diff --git a/net/can/j1939/main.c b/net/can/j1939/main.c index 144c86b0e3ff..821d4ff303b3 100644 --- a/net/can/j1939/main.c +++ b/net/can/j1939/main.c @@ -336,6 +336,9 @@ int j1939_send_one(struct j1939_priv *priv, struct sk_buff *skb) /* re-claim the CAN_HDR from the SKB */ cf = skb_push(skb, J1939_CAN_HDR); + /* initialize header structure */ + memset(cf, 0, J1939_CAN_HDR); + /* make it a full can frame again */ skb_put(skb, J1939_CAN_FTR + (8 - dlc)); |