diff options
Diffstat (limited to 'drivers/net')
64 files changed, 652 insertions, 297 deletions
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c index a8fde3bc458f..b93337b5a721 100644 --- a/drivers/net/bonding/bond_options.c +++ b/drivers/net/bonding/bond_options.c @@ -1526,7 +1526,7 @@ static int bond_option_ad_actor_system_set(struct bonding *bond, mac = (u8 *)&newval->value; } - if (!is_valid_ether_addr(mac)) + if (is_multicast_ether_addr(mac)) goto err; netdev_dbg(bond->dev, "Setting ad_actor_system to %pM\n", mac); diff --git a/drivers/net/dsa/mv88e6xxx/chip.c b/drivers/net/dsa/mv88e6xxx/chip.c index 14f87f6ac479..cd8462d1e27c 100644 --- a/drivers/net/dsa/mv88e6xxx/chip.c +++ b/drivers/net/dsa/mv88e6xxx/chip.c @@ -768,6 +768,10 @@ static void mv88e6xxx_mac_link_down(struct dsa_switch *ds, int port, if ((!mv88e6xxx_port_ppu_updates(chip, port) || mode == MLO_AN_FIXED) && ops->port_sync_link) err = ops->port_sync_link(chip, port, mode, false); + + if (!err && ops->port_set_speed_duplex) + err = ops->port_set_speed_duplex(chip, port, SPEED_UNFORCED, + DUPLEX_UNFORCED); mv88e6xxx_reg_unlock(chip); if (err) diff --git a/drivers/net/dsa/mv88e6xxx/port.c b/drivers/net/dsa/mv88e6xxx/port.c index d9817b20ea64..ab41619a809b 100644 --- a/drivers/net/dsa/mv88e6xxx/port.c +++ b/drivers/net/dsa/mv88e6xxx/port.c @@ -283,7 +283,7 @@ static int mv88e6xxx_port_set_speed_duplex(struct mv88e6xxx_chip *chip, if (err) return err; - if (speed) + if (speed != SPEED_UNFORCED) dev_dbg(chip->dev, "p%d: Speed set to %d Mbps\n", port, speed); else dev_dbg(chip->dev, "p%d: Speed unforced\n", port); @@ -516,7 +516,7 @@ int mv88e6393x_port_set_speed_duplex(struct mv88e6xxx_chip *chip, int port, if (err) return err; - if (speed) + if (speed != SPEED_UNFORCED) dev_dbg(chip->dev, "p%d: Speed set to %d Mbps\n", port, speed); else dev_dbg(chip->dev, "p%d: Speed unforced\n", port); diff --git a/drivers/net/ethernet/broadcom/bcmsysport.c b/drivers/net/ethernet/broadcom/bcmsysport.c index 40933bf5a710..60dde29974bf 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.c +++ b/drivers/net/ethernet/broadcom/bcmsysport.c @@ -1309,11 +1309,11 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb, struct bcm_sysport_priv *priv = netdev_priv(dev); struct device *kdev = &priv->pdev->dev; struct bcm_sysport_tx_ring *ring; + unsigned long flags, desc_flags; struct bcm_sysport_cb *cb; struct netdev_queue *txq; u32 len_status, addr_lo; unsigned int skb_len; - unsigned long flags; dma_addr_t mapping; u16 queue; int ret; @@ -1373,8 +1373,10 @@ static netdev_tx_t bcm_sysport_xmit(struct sk_buff *skb, ring->desc_count--; /* Ports are latched, so write upper address first */ + spin_lock_irqsave(&priv->desc_lock, desc_flags); tdma_writel(priv, len_status, TDMA_WRITE_PORT_HI(ring->index)); tdma_writel(priv, addr_lo, TDMA_WRITE_PORT_LO(ring->index)); + spin_unlock_irqrestore(&priv->desc_lock, desc_flags); /* Check ring space and update SW control flow */ if (ring->desc_count == 0) @@ -2013,6 +2015,7 @@ static int bcm_sysport_open(struct net_device *dev) } /* Initialize both hardware and software ring */ + spin_lock_init(&priv->desc_lock); for (i = 0; i < dev->num_tx_queues; i++) { ret = bcm_sysport_init_tx_ring(priv, i); if (ret) { diff --git a/drivers/net/ethernet/broadcom/bcmsysport.h b/drivers/net/ethernet/broadcom/bcmsysport.h index 984f76e74b43..16b73bb9acc7 100644 --- a/drivers/net/ethernet/broadcom/bcmsysport.h +++ b/drivers/net/ethernet/broadcom/bcmsysport.h @@ -711,6 +711,7 @@ struct bcm_sysport_priv { int wol_irq; /* Transmit rings */ + spinlock_t desc_lock; struct bcm_sysport_tx_ring *tx_rings; /* Receive queue */ diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c index 5f259641437a..c888ddee1fc4 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmmii.c +++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c @@ -589,9 +589,9 @@ static int bcmgenet_mii_pd_init(struct bcmgenet_priv *priv) * Internal or external PHY with MDIO access */ phydev = phy_attach(priv->dev, phy_name, pd->phy_interface); - if (!phydev) { + if (IS_ERR(phydev)) { dev_err(kdev, "failed to register PHY device\n"); - return -ENODEV; + return PTR_ERR(phydev); } } else { /* diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 2085844227fe..e54e70ebdd05 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -388,6 +388,8 @@ struct dpaa2_eth_ch_stats { __u64 bytes_per_cdan; }; +#define DPAA2_ETH_CH_STATS 7 + /* Maximum number of queues associated with a DPNI */ #define DPAA2_ETH_MAX_TCS 8 #define DPAA2_ETH_MAX_RX_QUEUES_PER_TC 16 diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c index adb8ce5306ee..3fdbf87dccb1 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-ethtool.c @@ -278,7 +278,7 @@ static void dpaa2_eth_get_ethtool_stats(struct net_device *net_dev, /* Per-channel stats */ for (k = 0; k < priv->num_channels; k++) { ch_stats = &priv->channel[k]->stats; - for (j = 0; j < sizeof(*ch_stats) / sizeof(__u64) - 1; j++) + for (j = 0; j < DPAA2_ETH_CH_STATS; j++) *((__u64 *)data + i + j) += *((__u64 *)ch_stats + j); } i += j; diff --git a/drivers/net/ethernet/google/gve/gve_adminq.c b/drivers/net/ethernet/google/gve/gve_adminq.c index 83ae56c310d3..326b56b49216 100644 --- a/drivers/net/ethernet/google/gve/gve_adminq.c +++ b/drivers/net/ethernet/google/gve/gve_adminq.c @@ -738,10 +738,7 @@ int gve_adminq_describe_device(struct gve_priv *priv) * is not set to GqiRda, choose the queue format in a priority order: * DqoRda, GqiRda, GqiQpl. Use GqiQpl as default. */ - if (priv->queue_format == GVE_GQI_RDA_FORMAT) { - dev_info(&priv->pdev->dev, - "Driver is running with GQI RDA queue format.\n"); - } else if (dev_op_dqo_rda) { + if (dev_op_dqo_rda) { priv->queue_format = GVE_DQO_RDA_FORMAT; dev_info(&priv->pdev->dev, "Driver is running with DQO RDA queue format.\n"); @@ -753,6 +750,9 @@ int gve_adminq_describe_device(struct gve_priv *priv) "Driver is running with GQI RDA queue format.\n"); supported_features_mask = be32_to_cpu(dev_op_gqi_rda->supported_features_mask); + } else if (priv->queue_format == GVE_GQI_RDA_FORMAT) { + dev_info(&priv->pdev->dev, + "Driver is running with GQI RDA queue format.\n"); } else { priv->queue_format = GVE_GQI_QPL_FORMAT; if (dev_op_gqi_qpl) diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h index 3f7a9a4c59d5..63f5abcc6bf4 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h +++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h @@ -839,6 +839,8 @@ struct hnae3_handle { u8 netdev_flags; struct dentry *hnae3_dbgfs; + /* protects concurrent contention between debugfs commands */ + struct mutex dbgfs_lock; /* Network interface message level enabled bits */ u32 msg_enable; diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c index 081295bff765..c381f8af67f0 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3_debugfs.c @@ -1226,6 +1226,7 @@ static ssize_t hns3_dbg_read(struct file *filp, char __user *buffer, if (ret) return ret; + mutex_lock(&handle->dbgfs_lock); save_buf = &hns3_dbg_cmd[index].buf; if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state) || @@ -1238,15 +1239,15 @@ static ssize_t hns3_dbg_read(struct file *filp, char __user *buffer, read_buf = *save_buf; } else { read_buf = kvzalloc(hns3_dbg_cmd[index].buf_len, GFP_KERNEL); - if (!read_buf) - return -ENOMEM; + if (!read_buf) { + ret = -ENOMEM; + goto out; + } /* save the buffer addr until the last read operation */ *save_buf = read_buf; - } - /* get data ready for the first time to read */ - if (!*ppos) { + /* get data ready for the first time to read */ ret = hns3_dbg_read_cmd(dbg_data, hns3_dbg_cmd[index].cmd, read_buf, hns3_dbg_cmd[index].buf_len); if (ret) @@ -1255,8 +1256,10 @@ static ssize_t hns3_dbg_read(struct file *filp, char __user *buffer, size = simple_read_from_buffer(buffer, count, ppos, read_buf, strlen(read_buf)); - if (size > 0) + if (size > 0) { + mutex_unlock(&handle->dbgfs_lock); return size; + } out: /* free the buffer for the last read operation */ @@ -1265,6 +1268,7 @@ out: *save_buf = NULL; } + mutex_unlock(&handle->dbgfs_lock); return ret; } @@ -1337,6 +1341,8 @@ int hns3_dbg_init(struct hnae3_handle *handle) debugfs_create_dir(hns3_dbg_dentry[i].name, handle->hnae3_dbgfs); + mutex_init(&handle->dbgfs_lock); + for (i = 0; i < ARRAY_SIZE(hns3_dbg_cmd); i++) { if ((hns3_dbg_cmd[i].cmd == HNAE3_DBG_CMD_TM_NODES && ae_dev->dev_version <= HNAE3_DEVICE_VERSION_V2) || @@ -1363,6 +1369,7 @@ int hns3_dbg_init(struct hnae3_handle *handle) return 0; out: + mutex_destroy(&handle->dbgfs_lock); debugfs_remove_recursive(handle->hnae3_dbgfs); handle->hnae3_dbgfs = NULL; return ret; @@ -1378,6 +1385,7 @@ void hns3_dbg_uninit(struct hnae3_handle *handle) hns3_dbg_cmd[i].buf = NULL; } + mutex_destroy(&handle->dbgfs_lock); debugfs_remove_recursive(handle->hnae3_dbgfs); handle->hnae3_dbgfs = NULL; } diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c index fdc66fae0960..c5ac6ecf36e1 100644 --- a/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c +++ b/drivers/net/ethernet/hisilicon/hns3/hns3vf/hclgevf_mbx.c @@ -114,7 +114,8 @@ int hclgevf_send_mbx_msg(struct hclgevf_dev *hdev, memcpy(&req->msg, send_msg, sizeof(struct hclge_vf_to_pf_msg)); - trace_hclge_vf_mbx_send(hdev, req); + if (test_bit(HCLGEVF_STATE_NIC_REGISTERED, &hdev->state)) + trace_hclge_vf_mbx_send(hdev, req); /* synchronous send */ if (need_resp) { diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c index cfdbf8c08d18..4e7c04047f91 100644 --- a/drivers/net/ethernet/intel/iavf/iavf_main.c +++ b/drivers/net/ethernet/intel/iavf/iavf_main.c @@ -2046,6 +2046,7 @@ static void iavf_watchdog_task(struct work_struct *work) } adapter->aq_required = 0; adapter->current_op = VIRTCHNL_OP_UNKNOWN; + mutex_unlock(&adapter->crit_lock); queue_delayed_work(iavf_wq, &adapter->watchdog_task, msecs_to_jiffies(10)); @@ -2076,16 +2077,14 @@ static void iavf_watchdog_task(struct work_struct *work) iavf_detect_recover_hung(&adapter->vsi); break; case __IAVF_REMOVE: - mutex_unlock(&adapter->crit_lock); - return; default: + mutex_unlock(&adapter->crit_lock); return; } /* check for hw reset */ reg_val = rd32(hw, IAVF_VF_ARQLEN1) & IAVF_VF_ARQLEN1_ARQENABLE_MASK; if (!reg_val) { - iavf_change_state(adapter, __IAVF_RESETTING); adapter->flags |= IAVF_FLAG_RESET_PENDING; adapter->aq_required = 0; adapter->current_op = VIRTCHNL_OP_UNKNOWN; diff --git a/drivers/net/ethernet/intel/ice/ice_base.c b/drivers/net/ethernet/intel/ice/ice_base.c index 1efc635cc0f5..fafe020e46ee 100644 --- a/drivers/net/ethernet/intel/ice/ice_base.c +++ b/drivers/net/ethernet/intel/ice/ice_base.c @@ -6,6 +6,18 @@ #include "ice_lib.h" #include "ice_dcb_lib.h" +static bool ice_alloc_rx_buf_zc(struct ice_rx_ring *rx_ring) +{ + rx_ring->xdp_buf = kcalloc(rx_ring->count, sizeof(*rx_ring->xdp_buf), GFP_KERNEL); + return !!rx_ring->xdp_buf; +} + +static bool ice_alloc_rx_buf(struct ice_rx_ring *rx_ring) +{ + rx_ring->rx_buf = kcalloc(rx_ring->count, sizeof(*rx_ring->rx_buf), GFP_KERNEL); + return !!rx_ring->rx_buf; +} + /** * __ice_vsi_get_qs_contig - Assign a contiguous chunk of queues to VSI * @qs_cfg: gathered variables needed for PF->VSI queues assignment @@ -492,8 +504,11 @@ int ice_vsi_cfg_rxq(struct ice_rx_ring *ring) xdp_rxq_info_reg(&ring->xdp_rxq, ring->netdev, ring->q_index, ring->q_vector->napi.napi_id); + kfree(ring->rx_buf); ring->xsk_pool = ice_xsk_pool(ring); if (ring->xsk_pool) { + if (!ice_alloc_rx_buf_zc(ring)) + return -ENOMEM; xdp_rxq_info_unreg_mem_model(&ring->xdp_rxq); ring->rx_buf_len = @@ -508,6 +523,8 @@ int ice_vsi_cfg_rxq(struct ice_rx_ring *ring) dev_info(dev, "Registered XDP mem model MEM_TYPE_XSK_BUFF_POOL on Rx ring %d\n", ring->q_index); } else { + if (!ice_alloc_rx_buf(ring)) + return -ENOMEM; if (!xdp_rxq_info_is_reg(&ring->xdp_rxq)) /* coverity[check_return] */ xdp_rxq_info_reg(&ring->xdp_rxq, diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c index bf7247c6f58e..442b031b0edc 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.c +++ b/drivers/net/ethernet/intel/ice/ice_ptp.c @@ -705,7 +705,7 @@ static int ice_ptp_adjfine(struct ptp_clock_info *info, long scaled_ppm) scaled_ppm = -scaled_ppm; } - while ((u64)scaled_ppm > div_u64(U64_MAX, incval)) { + while ((u64)scaled_ppm > div64_u64(U64_MAX, incval)) { /* handle overflow by scaling down the scaled_ppm and * the divisor, losing some precision */ @@ -1540,19 +1540,16 @@ static void ice_ptp_tx_tstamp_work(struct kthread_work *work) if (err) continue; - /* Check if the timestamp is valid */ - if (!(raw_tstamp & ICE_PTP_TS_VALID)) + /* Check if the timestamp is invalid or stale */ + if (!(raw_tstamp & ICE_PTP_TS_VALID) || + raw_tstamp == tx->tstamps[idx].cached_tstamp) continue; - /* clear the timestamp register, so that it won't show valid - * again when re-used. - */ - ice_clear_phy_tstamp(hw, tx->quad, phy_idx); - /* The timestamp is valid, so we'll go ahead and clear this * index and then send the timestamp up to the stack. */ spin_lock(&tx->lock); + tx->tstamps[idx].cached_tstamp = raw_tstamp; clear_bit(idx, tx->in_use); skb = tx->tstamps[idx].skb; tx->tstamps[idx].skb = NULL; diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h index f71ad317d6c8..53c15fc9d996 100644 --- a/drivers/net/ethernet/intel/ice/ice_ptp.h +++ b/drivers/net/ethernet/intel/ice/ice_ptp.h @@ -55,15 +55,21 @@ struct ice_perout_channel { * struct ice_tx_tstamp - Tracking for a single Tx timestamp * @skb: pointer to the SKB for this timestamp request * @start: jiffies when the timestamp was first requested + * @cached_tstamp: last read timestamp * * This structure tracks a single timestamp request. The SKB pointer is * provided when initiating a request. The start time is used to ensure that * we discard old requests that were not fulfilled within a 2 second time * window. + * Timestamp values in the PHY are read only and do not get cleared except at + * hardware reset or when a new timestamp value is captured. The cached_tstamp + * field is used to detect the case where a new timestamp has not yet been + * captured, ensuring that we avoid sending stale timestamp data to the stack. */ struct ice_tx_tstamp { struct sk_buff *skb; unsigned long start; + u64 cached_tstamp; }; /** diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.c b/drivers/net/ethernet/intel/ice/ice_txrx.c index bc3ba19dc88f..dccf09eefc75 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.c +++ b/drivers/net/ethernet/intel/ice/ice_txrx.c @@ -419,7 +419,10 @@ void ice_clean_rx_ring(struct ice_rx_ring *rx_ring) } rx_skip_free: - memset(rx_ring->rx_buf, 0, sizeof(*rx_ring->rx_buf) * rx_ring->count); + if (rx_ring->xsk_pool) + memset(rx_ring->xdp_buf, 0, array_size(rx_ring->count, sizeof(*rx_ring->xdp_buf))); + else + memset(rx_ring->rx_buf, 0, array_size(rx_ring->count, sizeof(*rx_ring->rx_buf))); /* Zero out the descriptor ring */ size = ALIGN(rx_ring->count * sizeof(union ice_32byte_rx_desc), @@ -446,8 +449,13 @@ void ice_free_rx_ring(struct ice_rx_ring *rx_ring) if (xdp_rxq_info_is_reg(&rx_ring->xdp_rxq)) xdp_rxq_info_unreg(&rx_ring->xdp_rxq); rx_ring->xdp_prog = NULL; - devm_kfree(rx_ring->dev, rx_ring->rx_buf); - rx_ring->rx_buf = NULL; + if (rx_ring->xsk_pool) { + kfree(rx_ring->xdp_buf); + rx_ring->xdp_buf = NULL; + } else { + kfree(rx_ring->rx_buf); + rx_ring->rx_buf = NULL; + } if (rx_ring->desc) { size = ALIGN(rx_ring->count * sizeof(union ice_32byte_rx_desc), @@ -475,8 +483,7 @@ int ice_setup_rx_ring(struct ice_rx_ring *rx_ring) /* warn if we are about to overwrite the pointer */ WARN_ON(rx_ring->rx_buf); rx_ring->rx_buf = - devm_kcalloc(dev, sizeof(*rx_ring->rx_buf), rx_ring->count, - GFP_KERNEL); + kcalloc(rx_ring->count, sizeof(*rx_ring->rx_buf), GFP_KERNEL); if (!rx_ring->rx_buf) return -ENOMEM; @@ -505,7 +512,7 @@ int ice_setup_rx_ring(struct ice_rx_ring *rx_ring) return 0; err: - devm_kfree(dev, rx_ring->rx_buf); + kfree(rx_ring->rx_buf); rx_ring->rx_buf = NULL; return -ENOMEM; } diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h index c56dd1749903..b7b3bd4816f0 100644 --- a/drivers/net/ethernet/intel/ice/ice_txrx.h +++ b/drivers/net/ethernet/intel/ice/ice_txrx.h @@ -24,7 +24,6 @@ #define ICE_MAX_DATA_PER_TXD_ALIGNED \ (~(ICE_MAX_READ_REQ_SIZE - 1) & ICE_MAX_DATA_PER_TXD) -#define ICE_RX_BUF_WRITE 16 /* Must be power of 2 */ #define ICE_MAX_TXQ_PER_TXQG 128 /* Attempt to maximize the headroom available for incoming frames. We use a 2K diff --git a/drivers/net/ethernet/intel/ice/ice_xsk.c b/drivers/net/ethernet/intel/ice/ice_xsk.c index bb9a80847298..c895351b25e0 100644 --- a/drivers/net/ethernet/intel/ice/ice_xsk.c +++ b/drivers/net/ethernet/intel/ice/ice_xsk.c @@ -12,6 +12,11 @@ #include "ice_txrx_lib.h" #include "ice_lib.h" +static struct xdp_buff **ice_xdp_buf(struct ice_rx_ring *rx_ring, u32 idx) +{ + return &rx_ring->xdp_buf[idx]; +} + /** * ice_qp_reset_stats - Resets all stats for rings of given index * @vsi: VSI that contains rings of interest @@ -372,7 +377,7 @@ bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count) dma_addr_t dma; rx_desc = ICE_RX_DESC(rx_ring, ntu); - xdp = &rx_ring->xdp_buf[ntu]; + xdp = ice_xdp_buf(rx_ring, ntu); nb_buffs = min_t(u16, count, rx_ring->count - ntu); nb_buffs = xsk_buff_alloc_batch(rx_ring->xsk_pool, xdp, nb_buffs); @@ -390,14 +395,9 @@ bool ice_alloc_rx_bufs_zc(struct ice_rx_ring *rx_ring, u16 count) } ntu += nb_buffs; - if (ntu == rx_ring->count) { - rx_desc = ICE_RX_DESC(rx_ring, 0); - xdp = rx_ring->xdp_buf; + if (ntu == rx_ring->count) ntu = 0; - } - /* clear the status bits for the next_to_use descriptor */ - rx_desc->wb.status_error0 = 0; ice_release_rx_desc(rx_ring, ntu); return count == nb_buffs; @@ -419,19 +419,18 @@ static void ice_bump_ntc(struct ice_rx_ring *rx_ring) /** * ice_construct_skb_zc - Create an sk_buff from zero-copy buffer * @rx_ring: Rx ring - * @xdp_arr: Pointer to the SW ring of xdp_buff pointers + * @xdp: Pointer to XDP buffer * * This function allocates a new skb from a zero-copy Rx buffer. * * Returns the skb on success, NULL on failure. */ static struct sk_buff * -ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff **xdp_arr) +ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff *xdp) { - struct xdp_buff *xdp = *xdp_arr; + unsigned int datasize_hard = xdp->data_end - xdp->data_hard_start; unsigned int metasize = xdp->data - xdp->data_meta; unsigned int datasize = xdp->data_end - xdp->data; - unsigned int datasize_hard = xdp->data_end - xdp->data_hard_start; struct sk_buff *skb; skb = __napi_alloc_skb(&rx_ring->q_vector->napi, datasize_hard, @@ -445,7 +444,6 @@ ice_construct_skb_zc(struct ice_rx_ring *rx_ring, struct xdp_buff **xdp_arr) skb_metadata_set(skb, metasize); xsk_buff_free(xdp); - *xdp_arr = NULL; return skb; } @@ -507,7 +505,6 @@ out_failure: int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) { unsigned int total_rx_bytes = 0, total_rx_packets = 0; - u16 cleaned_count = ICE_DESC_UNUSED(rx_ring); struct ice_tx_ring *xdp_ring; unsigned int xdp_xmit = 0; struct bpf_prog *xdp_prog; @@ -522,7 +519,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) while (likely(total_rx_packets < (unsigned int)budget)) { union ice_32b_rx_flex_desc *rx_desc; unsigned int size, xdp_res = 0; - struct xdp_buff **xdp; + struct xdp_buff *xdp; struct sk_buff *skb; u16 stat_err_bits; u16 vlan_tag = 0; @@ -540,31 +537,35 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) */ dma_rmb(); + xdp = *ice_xdp_buf(rx_ring, rx_ring->next_to_clean); + size = le16_to_cpu(rx_desc->wb.pkt_len) & ICE_RX_FLX_DESC_PKT_LEN_M; - if (!size) - break; + if (!size) { + xdp->data = NULL; + xdp->data_end = NULL; + xdp->data_hard_start = NULL; + xdp->data_meta = NULL; + goto construct_skb; + } - xdp = &rx_ring->xdp_buf[rx_ring->next_to_clean]; - xsk_buff_set_size(*xdp, size); - xsk_buff_dma_sync_for_cpu(*xdp, rx_ring->xsk_pool); + xsk_buff_set_size(xdp, size); + xsk_buff_dma_sync_for_cpu(xdp, rx_ring->xsk_pool); - xdp_res = ice_run_xdp_zc(rx_ring, *xdp, xdp_prog, xdp_ring); + xdp_res = ice_run_xdp_zc(rx_ring, xdp, xdp_prog, xdp_ring); if (xdp_res) { if (xdp_res & (ICE_XDP_TX | ICE_XDP_REDIR)) xdp_xmit |= xdp_res; else - xsk_buff_free(*xdp); + xsk_buff_free(xdp); - *xdp = NULL; total_rx_bytes += size; total_rx_packets++; - cleaned_count++; ice_bump_ntc(rx_ring); continue; } - +construct_skb: /* XDP_PASS path */ skb = ice_construct_skb_zc(rx_ring, xdp); if (!skb) { @@ -572,7 +573,6 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) break; } - cleaned_count++; ice_bump_ntc(rx_ring); if (eth_skb_pad(skb)) { @@ -594,8 +594,7 @@ int ice_clean_rx_irq_zc(struct ice_rx_ring *rx_ring, int budget) ice_receive_skb(rx_ring, skb, vlan_tag); } - if (cleaned_count >= ICE_RX_BUF_WRITE) - failure = !ice_alloc_rx_bufs_zc(rx_ring, cleaned_count); + failure = !ice_alloc_rx_bufs_zc(rx_ring, ICE_DESC_UNUSED(rx_ring)); ice_finalize_xdp_rx(xdp_ring, xdp_xmit); ice_update_rx_ring_stats(rx_ring, total_rx_packets, total_rx_bytes); @@ -811,15 +810,14 @@ bool ice_xsk_any_rx_ring_ena(struct ice_vsi *vsi) */ void ice_xsk_clean_rx_ring(struct ice_rx_ring *rx_ring) { - u16 i; - - for (i = 0; i < rx_ring->count; i++) { - struct xdp_buff **xdp = &rx_ring->xdp_buf[i]; + u16 count_mask = rx_ring->count - 1; + u16 ntc = rx_ring->next_to_clean; + u16 ntu = rx_ring->next_to_use; - if (!xdp) - continue; + for ( ; ntc != ntu; ntc = (ntc + 1) & count_mask) { + struct xdp_buff *xdp = *ice_xdp_buf(rx_ring, ntc); - *xdp = NULL; + xsk_buff_free(xdp); } } diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c index fd54d3ef890b..446894dde182 100644 --- a/drivers/net/ethernet/intel/igb/igb_main.c +++ b/drivers/net/ethernet/intel/igb/igb_main.c @@ -7648,6 +7648,20 @@ static int igb_set_vf_mac_filter(struct igb_adapter *adapter, const int vf, struct vf_mac_filter *entry = NULL; int ret = 0; + if ((vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) && + !vf_data->trusted) { + dev_warn(&pdev->dev, + "VF %d requested MAC filter but is administratively denied\n", + vf); + return -EINVAL; + } + if (!is_valid_ether_addr(addr)) { + dev_warn(&pdev->dev, + "VF %d attempted to set invalid MAC filter\n", + vf); + return -EINVAL; + } + switch (info) { case E1000_VF_MAC_FILTER_CLR: /* remove all unicast MAC filters related to the current VF */ @@ -7661,20 +7675,6 @@ static int igb_set_vf_mac_filter(struct igb_adapter *adapter, const int vf, } break; case E1000_VF_MAC_FILTER_ADD: - if ((vf_data->flags & IGB_VF_FLAG_PF_SET_MAC) && - !vf_data->trusted) { - dev_warn(&pdev->dev, - "VF %d requested MAC filter but is administratively denied\n", - vf); - return -EINVAL; - } - if (!is_valid_ether_addr(addr)) { - dev_warn(&pdev->dev, - "VF %d attempted to set invalid MAC filter\n", - vf); - return -EINVAL; - } - /* try to find empty slot in the list */ list_for_each(pos, &adapter->vf_macs.l) { entry = list_entry(pos, struct vf_mac_filter, l); @@ -9254,7 +9254,7 @@ static int __maybe_unused igb_suspend(struct device *dev) return __igb_shutdown(to_pci_dev(dev), NULL, 0); } -static int __maybe_unused igb_resume(struct device *dev) +static int __maybe_unused __igb_resume(struct device *dev, bool rpm) { struct pci_dev *pdev = to_pci_dev(dev); struct net_device *netdev = pci_get_drvdata(pdev); @@ -9297,17 +9297,24 @@ static int __maybe_unused igb_resume(struct device *dev) wr32(E1000_WUS, ~0); - rtnl_lock(); + if (!rpm) + rtnl_lock(); if (!err && netif_running(netdev)) err = __igb_open(netdev, true); if (!err) netif_device_attach(netdev); - rtnl_unlock(); + if (!rpm) + rtnl_unlock(); return err; } +static int __maybe_unused igb_resume(struct device *dev) +{ + return __igb_resume(dev, false); +} + static int __maybe_unused igb_runtime_idle(struct device *dev) { struct net_device *netdev = dev_get_drvdata(dev); @@ -9326,7 +9333,7 @@ static int __maybe_unused igb_runtime_suspend(struct device *dev) static int __maybe_unused igb_runtime_resume(struct device *dev) { - return igb_resume(dev); + return __igb_resume(dev, true); } static void igb_shutdown(struct pci_dev *pdev) @@ -9442,7 +9449,7 @@ static pci_ers_result_t igb_io_error_detected(struct pci_dev *pdev, * @pdev: Pointer to PCI device * * Restart the card from scratch, as if from a cold-boot. Implementation - * resembles the first-half of the igb_resume routine. + * resembles the first-half of the __igb_resume routine. **/ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) { @@ -9482,7 +9489,7 @@ static pci_ers_result_t igb_io_slot_reset(struct pci_dev *pdev) * * This callback is called when the error recovery driver tells us that * its OK to resume normal operation. Implementation resembles the - * second-half of the igb_resume routine. + * second-half of the __igb_resume routine. */ static void igb_io_resume(struct pci_dev *pdev) { diff --git a/drivers/net/ethernet/intel/igbvf/netdev.c b/drivers/net/ethernet/intel/igbvf/netdev.c index 74ccd622251a..4d988da68394 100644 --- a/drivers/net/ethernet/intel/igbvf/netdev.c +++ b/drivers/net/ethernet/intel/igbvf/netdev.c @@ -2859,6 +2859,7 @@ static int igbvf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) return 0; err_hw_init: + netif_napi_del(&adapter->rx_ring->napi); kfree(adapter->tx_ring); kfree(adapter->rx_ring); err_sw_init: diff --git a/drivers/net/ethernet/intel/igc/igc_i225.c b/drivers/net/ethernet/intel/igc/igc_i225.c index b2ef9fde97b3..b6807e16eea9 100644 --- a/drivers/net/ethernet/intel/igc/igc_i225.c +++ b/drivers/net/ethernet/intel/igc/igc_i225.c @@ -636,7 +636,7 @@ s32 igc_set_ltr_i225(struct igc_hw *hw, bool link) ltrv = rd32(IGC_LTRMAXV); if (ltr_max != (ltrv & IGC_LTRMAXV_LTRV_MASK)) { ltrv = IGC_LTRMAXV_LSNP_REQ | ltr_max | - (scale_min << IGC_LTRMAXV_SCALE_SHIFT); + (scale_max << IGC_LTRMAXV_SCALE_SHIFT); wr32(IGC_LTRMAXV, ltrv); } } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 0f9f022260d7..45e2ec4d264d 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -5531,6 +5531,10 @@ static int ixgbe_non_sfp_link_config(struct ixgbe_hw *hw) if (!speed && hw->mac.ops.get_link_capabilities) { ret = hw->mac.ops.get_link_capabilities(hw, &speed, &autoneg); + /* remove NBASE-T speeds from default autonegotiation + * to accommodate broken network switches in the field + * which cannot cope with advertised NBASE-T speeds + */ speed &= ~(IXGBE_LINK_SPEED_5GB_FULL | IXGBE_LINK_SPEED_2_5GB_FULL); } diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c index 9724ffb16518..e4b50c7781ff 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c @@ -3405,6 +3405,9 @@ static s32 ixgbe_reset_hw_X550em(struct ixgbe_hw *hw) /* flush pending Tx transactions */ ixgbe_clear_tx_pending(hw); + /* set MDIO speed before talking to the PHY in case it's the 1st time */ + ixgbe_set_mdio_speed(hw); + /* PHY ops must be identified and initialized prior to reset */ status = hw->phy.ops.init(hw); if (status == IXGBE_ERR_SFP_NOT_SUPPORTED || diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c index 0da09ea81980..96bd6f2b21ed 100644 --- a/drivers/net/ethernet/lantiq_xrx200.c +++ b/drivers/net/ethernet/lantiq_xrx200.c @@ -71,6 +71,8 @@ struct xrx200_priv { struct xrx200_chan chan_tx; struct xrx200_chan chan_rx; + u16 rx_buf_size; + struct net_device *net_dev; struct device *dev; @@ -97,6 +99,16 @@ static void xrx200_pmac_mask(struct xrx200_priv *priv, u32 clear, u32 set, xrx200_pmac_w32(priv, val, offset); } +static int xrx200_max_frame_len(int mtu) +{ + return VLAN_ETH_HLEN + mtu; +} + +static int xrx200_buffer_size(int mtu) +{ + return round_up(xrx200_max_frame_len(mtu), 4 * XRX200_DMA_BURST_LEN); +} + /* drop all the packets from the DMA ring */ static void xrx200_flush_dma(struct xrx200_chan *ch) { @@ -109,8 +121,7 @@ static void xrx200_flush_dma(struct xrx200_chan *ch) break; desc->ctl = LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | - (ch->priv->net_dev->mtu + VLAN_ETH_HLEN + - ETH_FCS_LEN); + ch->priv->rx_buf_size; ch->dma.desc++; ch->dma.desc %= LTQ_DESC_NUM; } @@ -158,21 +169,21 @@ static int xrx200_close(struct net_device *net_dev) static int xrx200_alloc_skb(struct xrx200_chan *ch) { - int len = ch->priv->net_dev->mtu + VLAN_ETH_HLEN + ETH_FCS_LEN; struct sk_buff *skb = ch->skb[ch->dma.desc]; + struct xrx200_priv *priv = ch->priv; dma_addr_t mapping; int ret = 0; - ch->skb[ch->dma.desc] = netdev_alloc_skb_ip_align(ch->priv->net_dev, - len); + ch->skb[ch->dma.desc] = netdev_alloc_skb_ip_align(priv->net_dev, + priv->rx_buf_size); if (!ch->skb[ch->dma.desc]) { ret = -ENOMEM; goto skip; } - mapping = dma_map_single(ch->priv->dev, ch->skb[ch->dma.desc]->data, - len, DMA_FROM_DEVICE); - if (unlikely(dma_mapping_error(ch->priv->dev, mapping))) { + mapping = dma_map_single(priv->dev, ch->skb[ch->dma.desc]->data, + priv->rx_buf_size, DMA_FROM_DEVICE); + if (unlikely(dma_mapping_error(priv->dev, mapping))) { dev_kfree_skb_any(ch->skb[ch->dma.desc]); ch->skb[ch->dma.desc] = skb; ret = -ENOMEM; @@ -184,7 +195,7 @@ static int xrx200_alloc_skb(struct xrx200_chan *ch) wmb(); skip: ch->dma.desc_base[ch->dma.desc].ctl = - LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | len; + LTQ_DMA_OWN | LTQ_DMA_RX_OFFSET(NET_IP_ALIGN) | priv->rx_buf_size; return ret; } @@ -356,6 +367,7 @@ xrx200_change_mtu(struct net_device *net_dev, int new_mtu) int ret = 0; net_dev->mtu = new_mtu; + priv->rx_buf_size = xrx200_buffer_size(new_mtu); if (new_mtu <= old_mtu) return ret; @@ -375,6 +387,7 @@ xrx200_change_mtu(struct net_device *net_dev, int new_mtu) ret = xrx200_alloc_skb(ch_rx); if (ret) { net_dev->mtu = old_mtu; + priv->rx_buf_size = xrx200_buffer_size(old_mtu); break; } dev_kfree_skb_any(skb); @@ -505,7 +518,8 @@ static int xrx200_probe(struct platform_device *pdev) net_dev->netdev_ops = &xrx200_netdev_ops; SET_NETDEV_DEV(net_dev, dev); net_dev->min_mtu = ETH_ZLEN; - net_dev->max_mtu = XRX200_DMA_DATA_LEN - VLAN_ETH_HLEN - ETH_FCS_LEN; + net_dev->max_mtu = XRX200_DMA_DATA_LEN - xrx200_max_frame_len(0); + priv->rx_buf_size = xrx200_buffer_size(ETH_DATA_LEN); /* load the memory ranges */ priv->pmac_reg = devm_platform_get_and_ioremap_resource(pdev, 0, NULL); diff --git a/drivers/net/ethernet/marvell/prestera/prestera_main.c b/drivers/net/ethernet/marvell/prestera/prestera_main.c index 4369a3ffad45..c687dc9aa973 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_main.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_main.c @@ -54,12 +54,14 @@ int prestera_port_pvid_set(struct prestera_port *port, u16 vid) struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, u32 dev_id, u32 hw_id) { - struct prestera_port *port = NULL; + struct prestera_port *port = NULL, *tmp; read_lock(&sw->port_list_lock); - list_for_each_entry(port, &sw->port_list, list) { - if (port->dev_id == dev_id && port->hw_id == hw_id) + list_for_each_entry(tmp, &sw->port_list, list) { + if (tmp->dev_id == dev_id && tmp->hw_id == hw_id) { + port = tmp; break; + } } read_unlock(&sw->port_list_lock); @@ -68,12 +70,14 @@ struct prestera_port *prestera_port_find_by_hwid(struct prestera_switch *sw, struct prestera_port *prestera_find_port(struct prestera_switch *sw, u32 id) { - struct prestera_port *port = NULL; + struct prestera_port *port = NULL, *tmp; read_lock(&sw->port_list_lock); - list_for_each_entry(port, &sw->port_list, list) { - if (port->id == id) + list_for_each_entry(tmp, &sw->port_list, list) { + if (tmp->id == id) { + port = tmp; break; + } } read_unlock(&sw->port_list_lock); @@ -764,23 +768,27 @@ static int prestera_netdev_port_event(struct net_device *lower, struct net_device *dev, unsigned long event, void *ptr) { - struct netdev_notifier_changeupper_info *info = ptr; + struct netdev_notifier_info *info = ptr; + struct netdev_notifier_changeupper_info *cu_info; struct prestera_port *port = netdev_priv(dev); struct netlink_ext_ack *extack; struct net_device *upper; - extack = netdev_notifier_info_to_extack(&info->info); - upper = info->upper_dev; + extack = netdev_notifier_info_to_extack(info); + cu_info = container_of(info, + struct netdev_notifier_changeupper_info, + info); switch (event) { case NETDEV_PRECHANGEUPPER: + upper = cu_info->upper_dev; if (!netif_is_bridge_master(upper) && !netif_is_lag_master(upper)) { NL_SET_ERR_MSG_MOD(extack, "Unknown upper device type"); return -EINVAL; } - if (!info->linking) + if (!cu_info->linking) break; if (netdev_has_any_upper_dev(upper)) { @@ -789,7 +797,7 @@ static int prestera_netdev_port_event(struct net_device *lower, } if (netif_is_lag_master(upper) && - !prestera_lag_master_check(upper, info->upper_info, extack)) + !prestera_lag_master_check(upper, cu_info->upper_info, extack)) return -EOPNOTSUPP; if (netif_is_lag_master(upper) && vlan_uses_dev(dev)) { NL_SET_ERR_MSG_MOD(extack, @@ -805,14 +813,15 @@ static int prestera_netdev_port_event(struct net_device *lower, break; case NETDEV_CHANGEUPPER: + upper = cu_info->upper_dev; if (netif_is_bridge_master(upper)) { - if (info->linking) + if (cu_info->linking) return prestera_bridge_port_join(upper, port, extack); else prestera_bridge_port_leave(upper, port); } else if (netif_is_lag_master(upper)) { - if (info->linking) + if (cu_info->linking) return prestera_lag_port_add(port, upper); else prestera_lag_port_del(port); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c index 217e3b351dfe..c34833ff1dde 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c @@ -8494,7 +8494,8 @@ mlxsw_sp_rif_mac_profile_replace(struct mlxsw_sp *mlxsw_sp, u8 mac_profile; int err; - if (!mlxsw_sp_rif_mac_profile_is_shared(rif)) + if (!mlxsw_sp_rif_mac_profile_is_shared(rif) && + !mlxsw_sp_rif_mac_profile_find(mlxsw_sp, new_mac)) return mlxsw_sp_rif_mac_profile_edit(rif, new_mac); err = mlxsw_sp_rif_mac_profile_get(mlxsw_sp, new_mac, diff --git a/drivers/net/ethernet/micrel/ks8851_par.c b/drivers/net/ethernet/micrel/ks8851_par.c index 2e25798c610e..7f49042484bd 100644 --- a/drivers/net/ethernet/micrel/ks8851_par.c +++ b/drivers/net/ethernet/micrel/ks8851_par.c @@ -321,6 +321,8 @@ static int ks8851_probe_par(struct platform_device *pdev) return ret; netdev->irq = platform_get_irq(pdev, 0); + if (netdev->irq < 0) + return netdev->irq; return ks8851_probe_common(netdev, dev, msg_enable); } diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h index 7160b42f51dd..d0111cb3b40e 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov.h @@ -201,7 +201,7 @@ int qlcnic_sriov_get_vf_vport_info(struct qlcnic_adapter *, struct qlcnic_info *, u16); int qlcnic_sriov_cfg_vf_guest_vlan(struct qlcnic_adapter *, u16, u8); void qlcnic_sriov_free_vlans(struct qlcnic_adapter *); -void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *); +int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *); bool qlcnic_sriov_check_any_vlan(struct qlcnic_vf_info *); void qlcnic_sriov_del_vlan_id(struct qlcnic_sriov *, struct qlcnic_vf_info *, u16); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c index dd03be3fc82a..42a44c97572a 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_common.c @@ -432,7 +432,7 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter, struct qlcnic_cmd_args *cmd) { struct qlcnic_sriov *sriov = adapter->ahw->sriov; - int i, num_vlans; + int i, num_vlans, ret; u16 *vlans; if (sriov->allowed_vlans) @@ -443,7 +443,9 @@ static int qlcnic_sriov_set_guest_vlan_mode(struct qlcnic_adapter *adapter, dev_info(&adapter->pdev->dev, "Number of allowed Guest VLANs = %d\n", sriov->num_allowed_vlans); - qlcnic_sriov_alloc_vlans(adapter); + ret = qlcnic_sriov_alloc_vlans(adapter); + if (ret) + return ret; if (!sriov->any_vlan) return 0; @@ -2154,7 +2156,7 @@ static int qlcnic_sriov_vf_resume(struct qlcnic_adapter *adapter) return err; } -void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) +int qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) { struct qlcnic_sriov *sriov = adapter->ahw->sriov; struct qlcnic_vf_info *vf; @@ -2164,7 +2166,11 @@ void qlcnic_sriov_alloc_vlans(struct qlcnic_adapter *adapter) vf = &sriov->vf_info[i]; vf->sriov_vlans = kcalloc(sriov->num_allowed_vlans, sizeof(*vf->sriov_vlans), GFP_KERNEL); + if (!vf->sriov_vlans) + return -ENOMEM; } + + return 0; } void qlcnic_sriov_free_vlans(struct qlcnic_adapter *adapter) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c index 447720b93e5a..e90fa97c0ae6 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c @@ -597,7 +597,9 @@ static int __qlcnic_pci_sriov_enable(struct qlcnic_adapter *adapter, if (err) goto del_flr_queue; - qlcnic_sriov_alloc_vlans(adapter); + err = qlcnic_sriov_alloc_vlans(adapter); + if (err) + goto del_flr_queue; return err; diff --git a/drivers/net/ethernet/sfc/ef100_nic.c b/drivers/net/ethernet/sfc/ef100_nic.c index 6aa81229b68a..e77a5cb4e40d 100644 --- a/drivers/net/ethernet/sfc/ef100_nic.c +++ b/drivers/net/ethernet/sfc/ef100_nic.c @@ -609,6 +609,9 @@ static size_t ef100_update_stats(struct efx_nic *efx, ef100_common_stat_mask(mask); ef100_ethtool_stat_mask(mask); + if (!mc_stats) + return 0; + efx_nic_copy_stats(efx, mc_stats); efx_nic_update_stats(ef100_stat_desc, EF100_STAT_COUNT, mask, stats, mc_stats, false); diff --git a/drivers/net/ethernet/sfc/falcon/rx.c b/drivers/net/ethernet/sfc/falcon/rx.c index 966f13e7475d..11a6aee852e9 100644 --- a/drivers/net/ethernet/sfc/falcon/rx.c +++ b/drivers/net/ethernet/sfc/falcon/rx.c @@ -728,7 +728,10 @@ static void ef4_init_rx_recycle_ring(struct ef4_nic *efx, efx->rx_bufs_per_page); rx_queue->page_ring = kcalloc(page_ring_size, sizeof(*rx_queue->page_ring), GFP_KERNEL); - rx_queue->page_ptr_mask = page_ring_size - 1; + if (!rx_queue->page_ring) + rx_queue->page_ptr_mask = 0; + else + rx_queue->page_ptr_mask = page_ring_size - 1; } void ef4_init_rx_queue(struct ef4_rx_queue *rx_queue) diff --git a/drivers/net/ethernet/sfc/rx_common.c b/drivers/net/ethernet/sfc/rx_common.c index 68fc7d317693..0983abc0cc5f 100644 --- a/drivers/net/ethernet/sfc/rx_common.c +++ b/drivers/net/ethernet/sfc/rx_common.c @@ -150,7 +150,10 @@ static void efx_init_rx_recycle_ring(struct efx_rx_queue *rx_queue) efx->rx_bufs_per_page); rx_queue->page_ring = kcalloc(page_ring_size, sizeof(*rx_queue->page_ring), GFP_KERNEL); - rx_queue->page_ptr_mask = page_ring_size - 1; + if (!rx_queue->page_ring) + rx_queue->page_ptr_mask = 0; + else + rx_queue->page_ptr_mask = page_ring_size - 1; } static void efx_fini_rx_recycle_ring(struct efx_rx_queue *rx_queue) diff --git a/drivers/net/ethernet/smsc/smc911x.c b/drivers/net/ethernet/smsc/smc911x.c index 89381f796985..dd6f69ced4ee 100644 --- a/drivers/net/ethernet/smsc/smc911x.c +++ b/drivers/net/ethernet/smsc/smc911x.c @@ -2072,6 +2072,11 @@ static int smc911x_drv_probe(struct platform_device *pdev) ndev->dma = (unsigned char)-1; ndev->irq = platform_get_irq(pdev, 0); + if (ndev->irq < 0) { + ret = ndev->irq; + goto release_both; + } + lp = netdev_priv(ndev); lp->netdev = ndev; #ifdef SMC_DYNAMIC_BUS_CONFIG diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c index 6924a6aacbd5..c469abc91fa1 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-rk.c @@ -33,6 +33,7 @@ struct rk_gmac_ops { void (*set_rgmii_speed)(struct rk_priv_data *bsp_priv, int speed); void (*set_rmii_speed)(struct rk_priv_data *bsp_priv, int speed); void (*integrated_phy_powerup)(struct rk_priv_data *bsp_priv); + bool regs_valid; u32 regs[]; }; @@ -1092,6 +1093,7 @@ static const struct rk_gmac_ops rk3568_ops = { .set_to_rmii = rk3568_set_to_rmii, .set_rgmii_speed = rk3568_set_gmac_speed, .set_rmii_speed = rk3568_set_gmac_speed, + .regs_valid = true, .regs = { 0xfe2a0000, /* gmac0 */ 0xfe010000, /* gmac1 */ @@ -1383,7 +1385,7 @@ static struct rk_priv_data *rk_gmac_setup(struct platform_device *pdev, * to be distinguished. */ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res) { + if (res && ops->regs_valid) { int i = 0; while (ops->regs[i]) { diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c index 66fc8be34bb7..e2e0f977875d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-visconti.c @@ -26,7 +26,7 @@ #define ETHER_CLK_SEL_FREQ_SEL_125M (BIT(9) | BIT(8)) #define ETHER_CLK_SEL_FREQ_SEL_50M BIT(9) #define ETHER_CLK_SEL_FREQ_SEL_25M BIT(8) -#define ETHER_CLK_SEL_FREQ_SEL_2P5M BIT(0) +#define ETHER_CLK_SEL_FREQ_SEL_2P5M 0 #define ETHER_CLK_SEL_TX_CLK_EXT_SEL_IN BIT(0) #define ETHER_CLK_SEL_TX_CLK_EXT_SEL_TXC BIT(10) #define ETHER_CLK_SEL_TX_CLK_EXT_SEL_DIV BIT(11) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index 5f129733aabd..873b9e3e5da2 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -172,6 +172,19 @@ struct stmmac_flow_entry { int is_l4; }; +/* Rx Frame Steering */ +enum stmmac_rfs_type { + STMMAC_RFS_T_VLAN, + STMMAC_RFS_T_MAX, +}; + +struct stmmac_rfs_entry { + unsigned long cookie; + int in_use; + int type; + int tc; +}; + struct stmmac_priv { /* Frequently used values are kept adjacent for cache effect */ u32 tx_coal_frames[MTL_MAX_TX_QUEUES]; @@ -289,6 +302,10 @@ struct stmmac_priv { struct stmmac_tc_entry *tc_entries; unsigned int flow_entries_max; struct stmmac_flow_entry *flow_entries; + unsigned int rfs_entries_max[STMMAC_RFS_T_MAX]; + unsigned int rfs_entries_cnt[STMMAC_RFS_T_MAX]; + unsigned int rfs_entries_total; + struct stmmac_rfs_entry *rfs_entries; /* Pulse Per Second output */ struct stmmac_pps_cfg pps[STMMAC_PPS_MAX]; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c index da8306f60730..8ded4be08b00 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c @@ -1461,16 +1461,20 @@ static int stmmac_init_rx_buffers(struct stmmac_priv *priv, struct dma_desc *p, { struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; struct stmmac_rx_buffer *buf = &rx_q->buf_pool[i]; + gfp_t gfp = (GFP_ATOMIC | __GFP_NOWARN); + + if (priv->dma_cap.addr64 <= 32) + gfp |= GFP_DMA32; if (!buf->page) { - buf->page = page_pool_dev_alloc_pages(rx_q->page_pool); + buf->page = page_pool_alloc_pages(rx_q->page_pool, gfp); if (!buf->page) return -ENOMEM; buf->page_offset = stmmac_rx_offset(priv); } if (priv->sph && !buf->sec_page) { - buf->sec_page = page_pool_dev_alloc_pages(rx_q->page_pool); + buf->sec_page = page_pool_alloc_pages(rx_q->page_pool, gfp); if (!buf->sec_page) return -ENOMEM; @@ -4482,6 +4486,10 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv, u32 queue) struct stmmac_rx_queue *rx_q = &priv->rx_queue[queue]; int dirty = stmmac_rx_dirty(priv, queue); unsigned int entry = rx_q->dirty_rx; + gfp_t gfp = (GFP_ATOMIC | __GFP_NOWARN); + + if (priv->dma_cap.addr64 <= 32) + gfp |= GFP_DMA32; while (dirty-- > 0) { struct stmmac_rx_buffer *buf = &rx_q->buf_pool[entry]; @@ -4494,13 +4502,13 @@ static inline void stmmac_rx_refill(struct stmmac_priv *priv, u32 queue) p = rx_q->dma_rx + entry; if (!buf->page) { - buf->page = page_pool_dev_alloc_pages(rx_q->page_pool); + buf->page = page_pool_alloc_pages(rx_q->page_pool, gfp); if (!buf->page) break; } if (priv->sph && !buf->sec_page) { - buf->sec_page = page_pool_dev_alloc_pages(rx_q->page_pool); + buf->sec_page = page_pool_alloc_pages(rx_q->page_pool, gfp); if (!buf->sec_page) break; diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c index 580cc035536b..be9b58b2abf9 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c @@ -102,7 +102,7 @@ static int stmmac_adjust_time(struct ptp_clock_info *ptp, s64 delta) time.tv_nsec = priv->plat->est->btr_reserve[0]; time.tv_sec = priv->plat->est->btr_reserve[1]; basetime = timespec64_to_ktime(time); - cycle_time = priv->plat->est->ctr[1] * NSEC_PER_SEC + + cycle_time = (u64)priv->plat->est->ctr[1] * NSEC_PER_SEC + priv->plat->est->ctr[0]; time = stmmac_calc_tas_basetime(basetime, current_time_ns, diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c index 1c4ea0b1b845..d0a2b289f460 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_tc.c @@ -232,11 +232,33 @@ static int tc_setup_cls_u32(struct stmmac_priv *priv, } } +static int tc_rfs_init(struct stmmac_priv *priv) +{ + int i; + + priv->rfs_entries_max[STMMAC_RFS_T_VLAN] = 8; + + for (i = 0; i < STMMAC_RFS_T_MAX; i++) + priv->rfs_entries_total += priv->rfs_entries_max[i]; + + priv->rfs_entries = devm_kcalloc(priv->device, + priv->rfs_entries_total, + sizeof(*priv->rfs_entries), + GFP_KERNEL); + if (!priv->rfs_entries) + return -ENOMEM; + + dev_info(priv->device, "Enabled RFS Flow TC (entries=%d)\n", + priv->rfs_entries_total); + + return 0; +} + static int tc_init(struct stmmac_priv *priv) { struct dma_features *dma_cap = &priv->dma_cap; unsigned int count; - int i; + int ret, i; if (dma_cap->l3l4fnum) { priv->flow_entries_max = dma_cap->l3l4fnum; @@ -250,10 +272,14 @@ static int tc_init(struct stmmac_priv *priv) for (i = 0; i < priv->flow_entries_max; i++) priv->flow_entries[i].idx = i; - dev_info(priv->device, "Enabled Flow TC (entries=%d)\n", + dev_info(priv->device, "Enabled L3L4 Flow TC (entries=%d)\n", priv->flow_entries_max); } + ret = tc_rfs_init(priv); + if (ret) + return -ENOMEM; + if (!priv->plat->fpe_cfg) { priv->plat->fpe_cfg = devm_kzalloc(priv->device, sizeof(*priv->plat->fpe_cfg), @@ -607,16 +633,45 @@ static int tc_del_flow(struct stmmac_priv *priv, return ret; } +static struct stmmac_rfs_entry *tc_find_rfs(struct stmmac_priv *priv, + struct flow_cls_offload *cls, + bool get_free) +{ + int i; + + for (i = 0; i < priv->rfs_entries_total; i++) { + struct stmmac_rfs_entry *entry = &priv->rfs_entries[i]; + + if (entry->cookie == cls->cookie) + return entry; + if (get_free && entry->in_use == false) + return entry; + } + + return NULL; +} + #define VLAN_PRIO_FULL_MASK (0x07) static int tc_add_vlan_flow(struct stmmac_priv *priv, struct flow_cls_offload *cls) { + struct stmmac_rfs_entry *entry = tc_find_rfs(priv, cls, false); struct flow_rule *rule = flow_cls_offload_flow_rule(cls); struct flow_dissector *dissector = rule->match.dissector; int tc = tc_classid_to_hwtc(priv->dev, cls->classid); struct flow_match_vlan match; + if (!entry) { + entry = tc_find_rfs(priv, cls, true); + if (!entry) + return -ENOENT; + } + + if (priv->rfs_entries_cnt[STMMAC_RFS_T_VLAN] >= + priv->rfs_entries_max[STMMAC_RFS_T_VLAN]) + return -ENOENT; + /* Nothing to do here */ if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_VLAN)) return -EINVAL; @@ -638,6 +693,12 @@ static int tc_add_vlan_flow(struct stmmac_priv *priv, prio = BIT(match.key->vlan_priority); stmmac_rx_queue_prio(priv, priv->hw, prio, tc); + + entry->in_use = true; + entry->cookie = cls->cookie; + entry->tc = tc; + entry->type = STMMAC_RFS_T_VLAN; + priv->rfs_entries_cnt[STMMAC_RFS_T_VLAN]++; } return 0; @@ -646,20 +707,19 @@ static int tc_add_vlan_flow(struct stmmac_priv *priv, static int tc_del_vlan_flow(struct stmmac_priv *priv, struct flow_cls_offload *cls) { - struct flow_rule *rule = flow_cls_offload_flow_rule(cls); - struct flow_dissector *dissector = rule->match.dissector; - int tc = tc_classid_to_hwtc(priv->dev, cls->classid); + struct stmmac_rfs_entry *entry = tc_find_rfs(priv, cls, false); - /* Nothing to do here */ - if (!dissector_uses_key(dissector, FLOW_DISSECTOR_KEY_VLAN)) - return -EINVAL; + if (!entry || !entry->in_use || entry->type != STMMAC_RFS_T_VLAN) + return -ENOENT; - if (tc < 0) { - netdev_err(priv->dev, "Invalid traffic class\n"); - return -EINVAL; - } + stmmac_rx_queue_prio(priv, priv->hw, 0, entry->tc); + + entry->in_use = false; + entry->cookie = 0; + entry->tc = 0; + entry->type = 0; - stmmac_rx_queue_prio(priv, priv->hw, 0, tc); + priv->rfs_entries_cnt[STMMAC_RFS_T_VLAN]--; return 0; } diff --git a/drivers/net/ethernet/ti/am65-cpsw-nuss.c b/drivers/net/ethernet/ti/am65-cpsw-nuss.c index c092cb61416a..ffbbda8f4d41 100644 --- a/drivers/net/ethernet/ti/am65-cpsw-nuss.c +++ b/drivers/net/ethernet/ti/am65-cpsw-nuss.c @@ -1844,13 +1844,14 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) if (ret < 0) { dev_err(dev, "%pOF error reading port_id %d\n", port_np, ret); - return ret; + goto of_node_put; } if (!port_id || port_id > common->port_num) { dev_err(dev, "%pOF has invalid port_id %u %s\n", port_np, port_id, port_np->name); - return -EINVAL; + ret = -EINVAL; + goto of_node_put; } port = am65_common_get_port(common, port_id); @@ -1866,8 +1867,10 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) (AM65_CPSW_NU_FRAM_PORT_OFFSET * (port_id - 1)); port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base); - if (IS_ERR(port->slave.mac_sl)) - return PTR_ERR(port->slave.mac_sl); + if (IS_ERR(port->slave.mac_sl)) { + ret = PTR_ERR(port->slave.mac_sl); + goto of_node_put; + } port->disabled = !of_device_is_available(port_np); if (port->disabled) { @@ -1880,7 +1883,7 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) ret = PTR_ERR(port->slave.ifphy); dev_err(dev, "%pOF error retrieving port phy: %d\n", port_np, ret); - return ret; + goto of_node_put; } port->slave.mac_only = @@ -1889,10 +1892,12 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) /* get phy/link info */ if (of_phy_is_fixed_link(port_np)) { ret = of_phy_register_fixed_link(port_np); - if (ret) - return dev_err_probe(dev, ret, + if (ret) { + ret = dev_err_probe(dev, ret, "failed to register fixed-link phy %pOF\n", port_np); + goto of_node_put; + } port->slave.phy_node = of_node_get(port_np); } else { port->slave.phy_node = @@ -1902,14 +1907,15 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) if (!port->slave.phy_node) { dev_err(dev, "slave[%d] no phy found\n", port_id); - return -ENODEV; + ret = -ENODEV; + goto of_node_put; } ret = of_get_phy_mode(port_np, &port->slave.phy_if); if (ret) { dev_err(dev, "%pOF read phy-mode err %d\n", port_np, ret); - return ret; + goto of_node_put; } ret = of_get_mac_address(port_np, port->slave.mac_addr); @@ -1932,6 +1938,11 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common) } return 0; + +of_node_put: + of_node_put(port_np); + of_node_put(node); + return ret; } static void am65_cpsw_pcpu_stats_free(void *data) diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index b06c17ac8d4e..ebd287039a54 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -1262,6 +1262,11 @@ static int fjes_probe(struct platform_device *plat_dev) hw->hw_res.start = res->start; hw->hw_res.size = resource_size(res); hw->hw_res.irq = platform_get_irq(plat_dev, 0); + if (hw->hw_res.irq < 0) { + err = hw->hw_res.irq; + goto err_free_control_wq; + } + err = fjes_hw_init(&adapter->hw); if (err) goto err_free_control_wq; diff --git a/drivers/net/hamradio/mkiss.c b/drivers/net/hamradio/mkiss.c index 7da2bb8a443c..edde9c3ae12b 100644 --- a/drivers/net/hamradio/mkiss.c +++ b/drivers/net/hamradio/mkiss.c @@ -794,14 +794,14 @@ static void mkiss_close(struct tty_struct *tty) */ netif_stop_queue(ax->dev); - ax->tty = NULL; - unregister_netdev(ax->dev); /* Free all AX25 frame buffers after unreg. */ kfree(ax->rbuff); kfree(ax->xbuff); + ax->tty = NULL; + free_netdev(ax->dev); } diff --git a/drivers/net/netdevsim/bpf.c b/drivers/net/netdevsim/bpf.c index 90aafb56f140..a43820212932 100644 --- a/drivers/net/netdevsim/bpf.c +++ b/drivers/net/netdevsim/bpf.c @@ -514,6 +514,7 @@ nsim_bpf_map_alloc(struct netdevsim *ns, struct bpf_offloaded_map *offmap) goto err_free; key = nmap->entry[i].key; *key = i; + memset(nmap->entry[i].value, 0, offmap->map.value_size); } } diff --git a/drivers/net/netdevsim/ethtool.c b/drivers/net/netdevsim/ethtool.c index 0ab6a40be611..a6a713b31aad 100644 --- a/drivers/net/netdevsim/ethtool.c +++ b/drivers/net/netdevsim/ethtool.c @@ -77,7 +77,10 @@ static int nsim_set_ringparam(struct net_device *dev, { struct netdevsim *ns = netdev_priv(dev); - memcpy(&ns->ethtool.ring, ring, sizeof(ns->ethtool.ring)); + ns->ethtool.ring.rx_pending = ring->rx_pending; + ns->ethtool.ring.rx_jumbo_pending = ring->rx_jumbo_pending; + ns->ethtool.ring.rx_mini_pending = ring->rx_mini_pending; + ns->ethtool.ring.tx_pending = ring->tx_pending; return 0; } diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index c204067f1890..c198722e4871 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -460,6 +460,9 @@ static void of_mdiobus_link_mdiodev(struct mii_bus *bus, if (addr == mdiodev->addr) { device_set_node(dev, of_fwnode_handle(child)); + /* The refcount on "child" is passed to the mdio + * device. Do _not_ use of_node_put(child) here. + */ return; } } diff --git a/drivers/net/tun.c b/drivers/net/tun.c index 1572878c3403..45a67e72a02c 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -209,6 +209,9 @@ struct tun_struct { struct tun_prog __rcu *steering_prog; struct tun_prog __rcu *filter_prog; struct ethtool_link_ksettings link_ksettings; + /* init args */ + struct file *file; + struct ifreq *ifr; }; struct veth { @@ -216,6 +219,9 @@ struct veth { __be16 h_vlan_TCI; }; +static void tun_flow_init(struct tun_struct *tun); +static void tun_flow_uninit(struct tun_struct *tun); + static int tun_napi_receive(struct napi_struct *napi, int budget) { struct tun_file *tfile = container_of(napi, struct tun_file, napi); @@ -953,6 +959,49 @@ static int check_filter(struct tap_filter *filter, const struct sk_buff *skb) static const struct ethtool_ops tun_ethtool_ops; +static int tun_net_init(struct net_device *dev) +{ + struct tun_struct *tun = netdev_priv(dev); + struct ifreq *ifr = tun->ifr; + int err; + + dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); + if (!dev->tstats) + return -ENOMEM; + + spin_lock_init(&tun->lock); + + err = security_tun_dev_alloc_security(&tun->security); + if (err < 0) { + free_percpu(dev->tstats); + return err; + } + + tun_flow_init(tun); + + dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | + TUN_USER_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX; + dev->features = dev->hw_features | NETIF_F_LLTX; + dev->vlan_features = dev->features & + ~(NETIF_F_HW_VLAN_CTAG_TX | + NETIF_F_HW_VLAN_STAG_TX); + + tun->flags = (tun->flags & ~TUN_FEATURES) | + (ifr->ifr_flags & TUN_FEATURES); + + INIT_LIST_HEAD(&tun->disabled); + err = tun_attach(tun, tun->file, false, ifr->ifr_flags & IFF_NAPI, + ifr->ifr_flags & IFF_NAPI_FRAGS, false); + if (err < 0) { + tun_flow_uninit(tun); + security_tun_dev_free_security(tun->security); + free_percpu(dev->tstats); + return err; + } + return 0; +} + /* Net device detach from fd. */ static void tun_net_uninit(struct net_device *dev) { @@ -1169,6 +1218,7 @@ static int tun_net_change_carrier(struct net_device *dev, bool new_carrier) } static const struct net_device_ops tun_netdev_ops = { + .ndo_init = tun_net_init, .ndo_uninit = tun_net_uninit, .ndo_open = tun_net_open, .ndo_stop = tun_net_close, @@ -1252,6 +1302,7 @@ static int tun_xdp_tx(struct net_device *dev, struct xdp_buff *xdp) } static const struct net_device_ops tap_netdev_ops = { + .ndo_init = tun_net_init, .ndo_uninit = tun_net_uninit, .ndo_open = tun_net_open, .ndo_stop = tun_net_close, @@ -1292,7 +1343,7 @@ static void tun_flow_uninit(struct tun_struct *tun) #define MAX_MTU 65535 /* Initialize net device. */ -static void tun_net_init(struct net_device *dev) +static void tun_net_initialize(struct net_device *dev) { struct tun_struct *tun = netdev_priv(dev); @@ -2206,11 +2257,6 @@ static void tun_free_netdev(struct net_device *dev) BUG_ON(!(list_empty(&tun->disabled))); free_percpu(dev->tstats); - /* We clear tstats so that tun_set_iff() can tell if - * tun_free_netdev() has been called from register_netdevice(). - */ - dev->tstats = NULL; - tun_flow_uninit(tun); security_tun_dev_free_security(tun->security); __tun_set_ebpf(tun, &tun->steering_prog, NULL); @@ -2716,41 +2762,16 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) tun->rx_batched = 0; RCU_INIT_POINTER(tun->steering_prog, NULL); - dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats); - if (!dev->tstats) { - err = -ENOMEM; - goto err_free_dev; - } - - spin_lock_init(&tun->lock); - - err = security_tun_dev_alloc_security(&tun->security); - if (err < 0) - goto err_free_stat; - - tun_net_init(dev); - tun_flow_init(tun); + tun->ifr = ifr; + tun->file = file; - dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | - TUN_USER_FEATURES | NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_STAG_TX; - dev->features = dev->hw_features | NETIF_F_LLTX; - dev->vlan_features = dev->features & - ~(NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_STAG_TX); - - tun->flags = (tun->flags & ~TUN_FEATURES) | - (ifr->ifr_flags & TUN_FEATURES); - - INIT_LIST_HEAD(&tun->disabled); - err = tun_attach(tun, file, false, ifr->ifr_flags & IFF_NAPI, - ifr->ifr_flags & IFF_NAPI_FRAGS, false); - if (err < 0) - goto err_free_flow; + tun_net_initialize(dev); err = register_netdevice(tun->dev); - if (err < 0) - goto err_detach; + if (err < 0) { + free_netdev(dev); + return err; + } /* free_netdev() won't check refcnt, to avoid race * with dev_put() we need publish tun after registration. */ @@ -2767,24 +2788,6 @@ static int tun_set_iff(struct net *net, struct file *file, struct ifreq *ifr) strcpy(ifr->ifr_name, tun->dev->name); return 0; - -err_detach: - tun_detach_all(dev); - /* We are here because register_netdevice() has failed. - * If register_netdevice() already called tun_free_netdev() - * while dealing with the error, dev->stats has been cleared. - */ - if (!dev->tstats) - goto err_free_dev; - -err_free_flow: - tun_flow_uninit(tun); - security_tun_dev_free_security(tun->security); -err_free_stat: - free_percpu(dev->tstats); -err_free_dev: - free_netdev(dev); - return err; } static void tun_get_iff(struct tun_struct *tun, struct ifreq *ifr) diff --git a/drivers/net/usb/asix_common.c b/drivers/net/usb/asix_common.c index 42ba4af68090..71682970be58 100644 --- a/drivers/net/usb/asix_common.c +++ b/drivers/net/usb/asix_common.c @@ -9,6 +9,8 @@ #include "asix.h" +#define AX_HOST_EN_RETRIES 30 + int asix_read_cmd(struct usbnet *dev, u8 cmd, u16 value, u16 index, u16 size, void *data, int in_pm) { @@ -68,7 +70,7 @@ static int asix_check_host_enable(struct usbnet *dev, int in_pm) int i, ret; u8 smsr; - for (i = 0; i < 30; ++i) { + for (i = 0; i < AX_HOST_EN_RETRIES; ++i) { ret = asix_set_sw_mii(dev, in_pm); if (ret == -ENODEV || ret == -ETIMEDOUT) break; @@ -77,13 +79,13 @@ static int asix_check_host_enable(struct usbnet *dev, int in_pm) 0, 0, 1, &smsr, in_pm); if (ret == -ENODEV) break; - else if (ret < 0) + else if (ret < sizeof(smsr)) continue; else if (smsr & AX_HOST_EN) break; } - return ret; + return i >= AX_HOST_EN_RETRIES ? -ETIMEDOUT : ret; } static void reset_asix_rx_fixup_info(struct asix_rx_fixup_info *rx) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index 8cd265fc1fd9..075f8abde5cd 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -76,6 +76,8 @@ #define LAN7801_USB_PRODUCT_ID (0x7801) #define LAN78XX_EEPROM_MAGIC (0x78A5) #define LAN78XX_OTP_MAGIC (0x78F3) +#define AT29M2AF_USB_VENDOR_ID (0x07C9) +#define AT29M2AF_USB_PRODUCT_ID (0x0012) #define MII_READ 1 #define MII_WRITE 0 @@ -4734,6 +4736,10 @@ static const struct usb_device_id products[] = { /* LAN7801 USB Gigabit Ethernet Device */ USB_DEVICE(LAN78XX_USB_VENDOR_ID, LAN7801_USB_PRODUCT_ID), }, + { + /* ATM2-AF USB Gigabit Ethernet Device */ + USB_DEVICE(AT29M2AF_USB_VENDOR_ID, AT29M2AF_USB_PRODUCT_ID), + }, {}, }; MODULE_DEVICE_TABLE(usb, products); diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 86b814e99224..f510e8219470 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -1358,6 +1358,7 @@ static const struct usb_device_id products[] = { {QMI_QUIRK_SET_DTR(0x1bc7, 0x1040, 2)}, /* Telit LE922A */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1050, 2)}, /* Telit FN980 */ {QMI_QUIRK_SET_DTR(0x1bc7, 0x1060, 2)}, /* Telit LN920 */ + {QMI_QUIRK_SET_DTR(0x1bc7, 0x1070, 2)}, /* Telit FN990 */ {QMI_FIXED_INTF(0x1bc7, 0x1100, 3)}, /* Telit ME910 */ {QMI_FIXED_INTF(0x1bc7, 0x1101, 3)}, /* Telit ME910 dual modem */ {QMI_FIXED_INTF(0x1bc7, 0x1200, 5)}, /* Telit LE920 */ diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index f9877a3e83ac..3085e8118d7f 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -32,7 +32,7 @@ #define NETNEXT_VERSION "12" /* Information for net */ -#define NET_VERSION "11" +#define NET_VERSION "12" #define DRIVER_VERSION "v1." NETNEXT_VERSION "." NET_VERSION #define DRIVER_AUTHOR "Realtek linux nic maintainers <nic_swsd@realtek.com>" @@ -4016,6 +4016,11 @@ static void rtl_clear_bp(struct r8152 *tp, u16 type) ocp_write_word(tp, type, PLA_BP_BA, 0); } +static inline void rtl_reset_ocp_base(struct r8152 *tp) +{ + tp->ocp_base = -1; +} + static int rtl_phy_patch_request(struct r8152 *tp, bool request, bool wait) { u16 data, check; @@ -4087,8 +4092,6 @@ static int rtl_post_ram_code(struct r8152 *tp, u16 key_addr, bool wait) rtl_phy_patch_request(tp, false, wait); - ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base); - return 0; } @@ -4800,6 +4803,8 @@ static void rtl_ram_code_speed_up(struct r8152 *tp, struct fw_phy_speed_up *phy, u32 len; u8 *data; + rtl_reset_ocp_base(tp); + if (sram_read(tp, SRAM_GPHY_FW_VER) >= __le16_to_cpu(phy->version)) { dev_dbg(&tp->intf->dev, "PHY firmware has been the newest\n"); return; @@ -4845,7 +4850,8 @@ static void rtl_ram_code_speed_up(struct r8152 *tp, struct fw_phy_speed_up *phy, } } - ocp_write_word(tp, MCU_TYPE_PLA, PLA_OCP_GPHY_BASE, tp->ocp_base); + rtl_reset_ocp_base(tp); + rtl_phy_patch_request(tp, false, wait); if (sram_read(tp, SRAM_GPHY_FW_VER) == __le16_to_cpu(phy->version)) @@ -4861,6 +4867,8 @@ static int rtl8152_fw_phy_ver(struct r8152 *tp, struct fw_phy_ver *phy_ver) ver_addr = __le16_to_cpu(phy_ver->ver.addr); ver = __le16_to_cpu(phy_ver->ver.data); + rtl_reset_ocp_base(tp); + if (sram_read(tp, ver_addr) >= ver) { dev_dbg(&tp->intf->dev, "PHY firmware has been the newest\n"); return 0; @@ -4877,6 +4885,8 @@ static void rtl8152_fw_phy_fixup(struct r8152 *tp, struct fw_phy_fixup *fix) { u16 addr, data; + rtl_reset_ocp_base(tp); + addr = __le16_to_cpu(fix->setting.addr); data = ocp_reg_read(tp, addr); @@ -4908,6 +4918,8 @@ static void rtl8152_fw_phy_union_apply(struct r8152 *tp, struct fw_phy_union *ph u32 length; int i, num; + rtl_reset_ocp_base(tp); + num = phy->pre_num; for (i = 0; i < num; i++) sram_write(tp, __le16_to_cpu(phy->pre_set[i].addr), @@ -4938,6 +4950,8 @@ static void rtl8152_fw_phy_nc_apply(struct r8152 *tp, struct fw_phy_nc *phy) u32 length, i, num; __le16 *data; + rtl_reset_ocp_base(tp); + mode_reg = __le16_to_cpu(phy->mode_reg); sram_write(tp, mode_reg, __le16_to_cpu(phy->mode_pre)); sram_write(tp, __le16_to_cpu(phy->ba_reg), @@ -5107,6 +5121,7 @@ post_fw: if (rtl_fw->post_fw) rtl_fw->post_fw(tp); + rtl_reset_ocp_base(tp); strscpy(rtl_fw->version, fw_hdr->version, RTL_VER_SIZE); dev_info(&tp->intf->dev, "load %s successfully\n", rtl_fw->version); } @@ -6584,6 +6599,21 @@ static bool rtl8153_in_nway(struct r8152 *tp) return true; } +static void r8156_mdio_force_mode(struct r8152 *tp) +{ + u16 data; + + /* Select force mode through 0xa5b4 bit 15 + * 0: MDIO force mode + * 1: MMD force mode + */ + data = ocp_reg_read(tp, 0xa5b4); + if (data & BIT(15)) { + data &= ~BIT(15); + ocp_reg_write(tp, 0xa5b4, data); + } +} + static void set_carrier(struct r8152 *tp) { struct net_device *netdev = tp->netdev; @@ -8016,6 +8046,7 @@ static void r8156_init(struct r8152 *tp) ocp_data |= ACT_ODMA; ocp_write_byte(tp, MCU_TYPE_USB, USB_BMU_CONFIG, ocp_data); + r8156_mdio_force_mode(tp); rtl_tally_reset(tp); tp->coalesce = 15000; /* 15 us */ @@ -8145,6 +8176,7 @@ static void r8156b_init(struct r8152 *tp) ocp_data &= ~(RX_AGG_DISABLE | RX_ZERO_EN); ocp_write_word(tp, MCU_TYPE_USB, USB_USB_CTRL, ocp_data); + r8156_mdio_force_mode(tp); rtl_tally_reset(tp); tp->coalesce = 15000; /* 15 us */ @@ -8467,6 +8499,8 @@ static int rtl8152_resume(struct usb_interface *intf) mutex_lock(&tp->control); + rtl_reset_ocp_base(tp); + if (test_bit(SELECTIVE_SUSPEND, &tp->flags)) ret = rtl8152_runtime_resume(tp); else @@ -8482,6 +8516,7 @@ static int rtl8152_reset_resume(struct usb_interface *intf) struct r8152 *tp = usb_get_intfdata(intf); clear_bit(SELECTIVE_SUSPEND, &tp->flags); + rtl_reset_ocp_base(tp); tp->rtl_ops.init(tp); queue_delayed_work(system_long_wq, &tp->hw_phy_work, 0); set_ethernet_addr(tp, true); diff --git a/drivers/net/veth.c b/drivers/net/veth.c index 50eb43e5bf45..2acdb8ad6c71 100644 --- a/drivers/net/veth.c +++ b/drivers/net/veth.c @@ -879,8 +879,12 @@ static int veth_xdp_rcv(struct veth_rq *rq, int budget, stats->xdp_bytes += skb->len; skb = veth_xdp_rcv_skb(rq, skb, bq, stats); - if (skb) - napi_gro_receive(&rq->xdp_napi, skb); + if (skb) { + if (skb_shared(skb) || skb_unclone(skb, GFP_ATOMIC)) + netif_receive_skb(skb); + else + napi_gro_receive(&rq->xdp_napi, skb); + } } done++; } diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 55db6a336f7e..b107835242ad 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -733,7 +733,7 @@ static struct sk_buff *receive_small(struct net_device *dev, pr_debug("%s: rx error: len %u exceeds max size %d\n", dev->name, len, GOOD_PACKET_LEN); dev->stats.rx_length_errors++; - goto err_len; + goto err; } if (likely(!vi->xdp_enabled)) { @@ -825,10 +825,8 @@ static struct sk_buff *receive_small(struct net_device *dev, skip_xdp: skb = build_skb(buf, buflen); - if (!skb) { - put_page(page); + if (!skb) goto err; - } skb_reserve(skb, headroom - delta); skb_put(skb, len); if (!xdp_prog) { @@ -839,13 +837,12 @@ skip_xdp: if (metasize) skb_metadata_set(skb, metasize); -err: return skb; err_xdp: rcu_read_unlock(); stats->xdp_drops++; -err_len: +err: stats->drops++; put_page(page); xdp_xmit: diff --git a/drivers/net/wireless/broadcom/brcm80211/Kconfig b/drivers/net/wireless/broadcom/brcm80211/Kconfig index 5bf2318763c5..3a1a35b5672f 100644 --- a/drivers/net/wireless/broadcom/brcm80211/Kconfig +++ b/drivers/net/wireless/broadcom/brcm80211/Kconfig @@ -7,16 +7,20 @@ config BRCMSMAC depends on MAC80211 depends on BCMA_POSSIBLE select BCMA - select NEW_LEDS if BCMA_DRIVER_GPIO - select LEDS_CLASS if BCMA_DRIVER_GPIO select BRCMUTIL select FW_LOADER select CORDIC help This module adds support for PCIe wireless adapters based on Broadcom - IEEE802.11n SoftMAC chipsets. It also has WLAN led support, which will - be available if you select BCMA_DRIVER_GPIO. If you choose to build a - module, the driver will be called brcmsmac.ko. + IEEE802.11n SoftMAC chipsets. If you choose to build a module, the + driver will be called brcmsmac.ko. + +config BRCMSMAC_LEDS + def_bool BRCMSMAC && BCMA_DRIVER_GPIO && MAC80211_LEDS + help + The brcmsmac LED support depends on the presence of the + BCMA_DRIVER_GPIO driver, and it only works if LED support + is enabled and reachable from the driver module. source "drivers/net/wireless/broadcom/brcm80211/brcmfmac/Kconfig" diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/Makefile b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/Makefile index 482d7737764d..090757730ba6 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/Makefile +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/Makefile @@ -42,6 +42,6 @@ brcmsmac-y := \ brcms_trace_events.o \ debug.o -brcmsmac-$(CONFIG_BCMA_DRIVER_GPIO) += led.o +brcmsmac-$(CONFIG_BRCMSMAC_LEDS) += led.o obj-$(CONFIG_BRCMSMAC) += brcmsmac.o diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.h b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.h index d65f5c268fd7..2a5cbeb9e783 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.h +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/led.h @@ -24,7 +24,7 @@ struct brcms_led { struct gpio_desc *gpiod; }; -#ifdef CONFIG_BCMA_DRIVER_GPIO +#ifdef CONFIG_BRCMSMAC_LEDS void brcms_led_unregister(struct brcms_info *wl); int brcms_led_register(struct brcms_info *wl); #else diff --git a/drivers/net/wireless/intel/iwlegacy/Kconfig b/drivers/net/wireless/intel/iwlegacy/Kconfig index 24fe3f63c321..7eacc8e58ee1 100644 --- a/drivers/net/wireless/intel/iwlegacy/Kconfig +++ b/drivers/net/wireless/intel/iwlegacy/Kconfig @@ -2,14 +2,13 @@ config IWLEGACY tristate select FW_LOADER - select NEW_LEDS - select LEDS_CLASS select LEDS_TRIGGERS select MAC80211_LEDS config IWL4965 tristate "Intel Wireless WiFi 4965AGN (iwl4965)" depends on PCI && MAC80211 + depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211 select IWLEGACY help This option enables support for @@ -38,6 +37,7 @@ config IWL4965 config IWL3945 tristate "Intel PRO/Wireless 3945ABG/BG Network Connection (iwl3945)" depends on PCI && MAC80211 + depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211 select IWLEGACY help Select to build the driver supporting the: diff --git a/drivers/net/wireless/intel/iwlwifi/Kconfig b/drivers/net/wireless/intel/iwlwifi/Kconfig index 1085afbefba8..418ae4f870ab 100644 --- a/drivers/net/wireless/intel/iwlwifi/Kconfig +++ b/drivers/net/wireless/intel/iwlwifi/Kconfig @@ -47,7 +47,7 @@ if IWLWIFI config IWLWIFI_LEDS bool - depends on LEDS_CLASS=y || LEDS_CLASS=IWLWIFI + depends on LEDS_CLASS=y || LEDS_CLASS=MAC80211 depends on IWLMVM || IWLDVM select LEDS_TRIGGERS select MAC80211_LEDS diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c index bdd4ee432548..76e0b7b45980 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/tx.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/tx.c @@ -269,17 +269,18 @@ static u32 iwl_mvm_get_tx_rate(struct iwl_mvm *mvm, u8 rate_plcp; u32 rate_flags = 0; bool is_cck; - struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); /* info->control is only relevant for non HW rate control */ if (!ieee80211_hw_check(mvm->hw, HAS_RATE_CONTROL)) { + struct iwl_mvm_sta *mvmsta = iwl_mvm_sta_from_mac80211(sta); + /* HT rate doesn't make sense for a non data frame */ WARN_ONCE(info->control.rates[0].flags & IEEE80211_TX_RC_MCS && !ieee80211_is_data(fc), "Got a HT rate (flags:0x%x/mcs:%d/fc:0x%x/state:%d) for a non data frame\n", info->control.rates[0].flags, info->control.rates[0].idx, - le16_to_cpu(fc), mvmsta->sta_state); + le16_to_cpu(fc), sta ? mvmsta->sta_state : -1); rate_idx = info->control.rates[0].idx; } diff --git a/drivers/net/wireless/mediatek/mt76/Makefile b/drivers/net/wireless/mediatek/mt76/Makefile index 79ab850a45a2..c78ae4b89761 100644 --- a/drivers/net/wireless/mediatek/mt76/Makefile +++ b/drivers/net/wireless/mediatek/mt76/Makefile @@ -34,4 +34,4 @@ obj-$(CONFIG_MT76x2_COMMON) += mt76x2/ obj-$(CONFIG_MT7603E) += mt7603/ obj-$(CONFIG_MT7615_COMMON) += mt7615/ obj-$(CONFIG_MT7915E) += mt7915/ -obj-$(CONFIG_MT7921E) += mt7921/ +obj-$(CONFIG_MT7921_COMMON) += mt7921/ diff --git a/drivers/net/xen-netback/common.h b/drivers/net/xen-netback/common.h index 4a16d6e33c09..d9dea4829c86 100644 --- a/drivers/net/xen-netback/common.h +++ b/drivers/net/xen-netback/common.h @@ -203,6 +203,7 @@ struct xenvif_queue { /* Per-queue data for xenvif */ unsigned int rx_queue_max; unsigned int rx_queue_len; unsigned long last_rx_time; + unsigned int rx_slots_needed; bool stalled; struct xenvif_copy_state rx_copy; diff --git a/drivers/net/xen-netback/rx.c b/drivers/net/xen-netback/rx.c index accc991d153f..dbac4c03d21a 100644 --- a/drivers/net/xen-netback/rx.c +++ b/drivers/net/xen-netback/rx.c @@ -33,28 +33,36 @@ #include <xen/xen.h> #include <xen/events.h> -static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue) +/* + * Update the needed ring page slots for the first SKB queued. + * Note that any call sequence outside the RX thread calling this function + * needs to wake up the RX thread via a call of xenvif_kick_thread() + * afterwards in order to avoid a race with putting the thread to sleep. + */ +static void xenvif_update_needed_slots(struct xenvif_queue *queue, + const struct sk_buff *skb) { - RING_IDX prod, cons; - struct sk_buff *skb; - int needed; - unsigned long flags; - - spin_lock_irqsave(&queue->rx_queue.lock, flags); + unsigned int needed = 0; - skb = skb_peek(&queue->rx_queue); - if (!skb) { - spin_unlock_irqrestore(&queue->rx_queue.lock, flags); - return false; + if (skb) { + needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE); + if (skb_is_gso(skb)) + needed++; + if (skb->sw_hash) + needed++; } - needed = DIV_ROUND_UP(skb->len, XEN_PAGE_SIZE); - if (skb_is_gso(skb)) - needed++; - if (skb->sw_hash) - needed++; + WRITE_ONCE(queue->rx_slots_needed, needed); +} - spin_unlock_irqrestore(&queue->rx_queue.lock, flags); +static bool xenvif_rx_ring_slots_available(struct xenvif_queue *queue) +{ + RING_IDX prod, cons; + unsigned int needed; + + needed = READ_ONCE(queue->rx_slots_needed); + if (!needed) + return false; do { prod = queue->rx.sring->req_prod; @@ -80,13 +88,19 @@ void xenvif_rx_queue_tail(struct xenvif_queue *queue, struct sk_buff *skb) spin_lock_irqsave(&queue->rx_queue.lock, flags); - __skb_queue_tail(&queue->rx_queue, skb); - - queue->rx_queue_len += skb->len; - if (queue->rx_queue_len > queue->rx_queue_max) { + if (queue->rx_queue_len >= queue->rx_queue_max) { struct net_device *dev = queue->vif->dev; netif_tx_stop_queue(netdev_get_tx_queue(dev, queue->id)); + kfree_skb(skb); + queue->vif->dev->stats.rx_dropped++; + } else { + if (skb_queue_empty(&queue->rx_queue)) + xenvif_update_needed_slots(queue, skb); + + __skb_queue_tail(&queue->rx_queue, skb); + + queue->rx_queue_len += skb->len; } spin_unlock_irqrestore(&queue->rx_queue.lock, flags); @@ -100,6 +114,8 @@ static struct sk_buff *xenvif_rx_dequeue(struct xenvif_queue *queue) skb = __skb_dequeue(&queue->rx_queue); if (skb) { + xenvif_update_needed_slots(queue, skb_peek(&queue->rx_queue)); + queue->rx_queue_len -= skb->len; if (queue->rx_queue_len < queue->rx_queue_max) { struct netdev_queue *txq; @@ -134,6 +150,7 @@ static void xenvif_rx_queue_drop_expired(struct xenvif_queue *queue) break; xenvif_rx_dequeue(queue); kfree_skb(skb); + queue->vif->dev->stats.rx_dropped++; } } @@ -487,27 +504,31 @@ void xenvif_rx_action(struct xenvif_queue *queue) xenvif_rx_copy_flush(queue); } -static bool xenvif_rx_queue_stalled(struct xenvif_queue *queue) +static RING_IDX xenvif_rx_queue_slots(const struct xenvif_queue *queue) { RING_IDX prod, cons; prod = queue->rx.sring->req_prod; cons = queue->rx.req_cons; + return prod - cons; +} + +static bool xenvif_rx_queue_stalled(const struct xenvif_queue *queue) +{ + unsigned int needed = READ_ONCE(queue->rx_slots_needed); + return !queue->stalled && - prod - cons < 1 && + xenvif_rx_queue_slots(queue) < needed && time_after(jiffies, queue->last_rx_time + queue->vif->stall_timeout); } static bool xenvif_rx_queue_ready(struct xenvif_queue *queue) { - RING_IDX prod, cons; - - prod = queue->rx.sring->req_prod; - cons = queue->rx.req_cons; + unsigned int needed = READ_ONCE(queue->rx_slots_needed); - return queue->stalled && prod - cons >= 1; + return queue->stalled && xenvif_rx_queue_slots(queue) >= needed; } bool xenvif_have_rx_work(struct xenvif_queue *queue, bool test_kthread) diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 911f43986a8c..d514d96027a6 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -148,6 +148,9 @@ struct netfront_queue { grant_ref_t gref_rx_head; grant_ref_t grant_rx_ref[NET_RX_RING_SIZE]; + unsigned int rx_rsp_unconsumed; + spinlock_t rx_cons_lock; + struct page_pool *page_pool; struct xdp_rxq_info xdp_rxq; }; @@ -376,12 +379,13 @@ static int xennet_open(struct net_device *dev) return 0; } -static void xennet_tx_buf_gc(struct netfront_queue *queue) +static bool xennet_tx_buf_gc(struct netfront_queue *queue) { RING_IDX cons, prod; unsigned short id; struct sk_buff *skb; bool more_to_do; + bool work_done = false; const struct device *dev = &queue->info->netdev->dev; BUG_ON(!netif_carrier_ok(queue->info->netdev)); @@ -398,6 +402,8 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue) for (cons = queue->tx.rsp_cons; cons != prod; cons++) { struct xen_netif_tx_response txrsp; + work_done = true; + RING_COPY_RESPONSE(&queue->tx, cons, &txrsp); if (txrsp.status == XEN_NETIF_RSP_NULL) continue; @@ -441,11 +447,13 @@ static void xennet_tx_buf_gc(struct netfront_queue *queue) xennet_maybe_wake_tx(queue); - return; + return work_done; err: queue->info->broken = true; dev_alert(dev, "Disabled for further use\n"); + + return work_done; } struct xennet_gnttab_make_txreq { @@ -834,6 +842,16 @@ static int xennet_close(struct net_device *dev) return 0; } +static void xennet_set_rx_rsp_cons(struct netfront_queue *queue, RING_IDX val) +{ + unsigned long flags; + + spin_lock_irqsave(&queue->rx_cons_lock, flags); + queue->rx.rsp_cons = val; + queue->rx_rsp_unconsumed = RING_HAS_UNCONSUMED_RESPONSES(&queue->rx); + spin_unlock_irqrestore(&queue->rx_cons_lock, flags); +} + static void xennet_move_rx_slot(struct netfront_queue *queue, struct sk_buff *skb, grant_ref_t ref) { @@ -885,7 +903,7 @@ static int xennet_get_extras(struct netfront_queue *queue, xennet_move_rx_slot(queue, skb, ref); } while (extra.flags & XEN_NETIF_EXTRA_FLAG_MORE); - queue->rx.rsp_cons = cons; + xennet_set_rx_rsp_cons(queue, cons); return err; } @@ -1039,7 +1057,7 @@ next: } if (unlikely(err)) - queue->rx.rsp_cons = cons + slots; + xennet_set_rx_rsp_cons(queue, cons + slots); return err; } @@ -1093,7 +1111,8 @@ static int xennet_fill_frags(struct netfront_queue *queue, __pskb_pull_tail(skb, pull_to - skb_headlen(skb)); } if (unlikely(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS)) { - queue->rx.rsp_cons = ++cons + skb_queue_len(list); + xennet_set_rx_rsp_cons(queue, + ++cons + skb_queue_len(list)); kfree_skb(nskb); return -ENOENT; } @@ -1106,7 +1125,7 @@ static int xennet_fill_frags(struct netfront_queue *queue, kfree_skb(nskb); } - queue->rx.rsp_cons = cons; + xennet_set_rx_rsp_cons(queue, cons); return 0; } @@ -1229,7 +1248,9 @@ err: if (unlikely(xennet_set_skb_gso(skb, gso))) { __skb_queue_head(&tmpq, skb); - queue->rx.rsp_cons += skb_queue_len(&tmpq); + xennet_set_rx_rsp_cons(queue, + queue->rx.rsp_cons + + skb_queue_len(&tmpq)); goto err; } } @@ -1253,7 +1274,8 @@ err: __skb_queue_tail(&rxq, skb); - i = ++queue->rx.rsp_cons; + i = queue->rx.rsp_cons + 1; + xennet_set_rx_rsp_cons(queue, i); work_done++; } if (need_xdp_flush) @@ -1417,40 +1439,79 @@ static int xennet_set_features(struct net_device *dev, return 0; } -static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id) +static bool xennet_handle_tx(struct netfront_queue *queue, unsigned int *eoi) { - struct netfront_queue *queue = dev_id; unsigned long flags; - if (queue->info->broken) - return IRQ_HANDLED; + if (unlikely(queue->info->broken)) + return false; spin_lock_irqsave(&queue->tx_lock, flags); - xennet_tx_buf_gc(queue); + if (xennet_tx_buf_gc(queue)) + *eoi = 0; spin_unlock_irqrestore(&queue->tx_lock, flags); + return true; +} + +static irqreturn_t xennet_tx_interrupt(int irq, void *dev_id) +{ + unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS; + + if (likely(xennet_handle_tx(dev_id, &eoiflag))) + xen_irq_lateeoi(irq, eoiflag); + return IRQ_HANDLED; } -static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id) +static bool xennet_handle_rx(struct netfront_queue *queue, unsigned int *eoi) { - struct netfront_queue *queue = dev_id; - struct net_device *dev = queue->info->netdev; + unsigned int work_queued; + unsigned long flags; - if (queue->info->broken) - return IRQ_HANDLED; + if (unlikely(queue->info->broken)) + return false; + + spin_lock_irqsave(&queue->rx_cons_lock, flags); + work_queued = RING_HAS_UNCONSUMED_RESPONSES(&queue->rx); + if (work_queued > queue->rx_rsp_unconsumed) { + queue->rx_rsp_unconsumed = work_queued; + *eoi = 0; + } else if (unlikely(work_queued < queue->rx_rsp_unconsumed)) { + const struct device *dev = &queue->info->netdev->dev; + + spin_unlock_irqrestore(&queue->rx_cons_lock, flags); + dev_alert(dev, "RX producer index going backwards\n"); + dev_alert(dev, "Disabled for further use\n"); + queue->info->broken = true; + return false; + } + spin_unlock_irqrestore(&queue->rx_cons_lock, flags); - if (likely(netif_carrier_ok(dev) && - RING_HAS_UNCONSUMED_RESPONSES(&queue->rx))) + if (likely(netif_carrier_ok(queue->info->netdev) && work_queued)) napi_schedule(&queue->napi); + return true; +} + +static irqreturn_t xennet_rx_interrupt(int irq, void *dev_id) +{ + unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS; + + if (likely(xennet_handle_rx(dev_id, &eoiflag))) + xen_irq_lateeoi(irq, eoiflag); + return IRQ_HANDLED; } static irqreturn_t xennet_interrupt(int irq, void *dev_id) { - xennet_tx_interrupt(irq, dev_id); - xennet_rx_interrupt(irq, dev_id); + unsigned int eoiflag = XEN_EOI_FLAG_SPURIOUS; + + if (xennet_handle_tx(dev_id, &eoiflag) && + xennet_handle_rx(dev_id, &eoiflag)) + xen_irq_lateeoi(irq, eoiflag); + return IRQ_HANDLED; } @@ -1768,9 +1829,10 @@ static int setup_netfront_single(struct netfront_queue *queue) if (err < 0) goto fail; - err = bind_evtchn_to_irqhandler(queue->tx_evtchn, - xennet_interrupt, - 0, queue->info->netdev->name, queue); + err = bind_evtchn_to_irqhandler_lateeoi(queue->tx_evtchn, + xennet_interrupt, 0, + queue->info->netdev->name, + queue); if (err < 0) goto bind_fail; queue->rx_evtchn = queue->tx_evtchn; @@ -1798,18 +1860,18 @@ static int setup_netfront_split(struct netfront_queue *queue) snprintf(queue->tx_irq_name, sizeof(queue->tx_irq_name), "%s-tx", queue->name); - err = bind_evtchn_to_irqhandler(queue->tx_evtchn, - xennet_tx_interrupt, - 0, queue->tx_irq_name, queue); + err = bind_evtchn_to_irqhandler_lateeoi(queue->tx_evtchn, + xennet_tx_interrupt, 0, + queue->tx_irq_name, queue); if (err < 0) goto bind_tx_fail; queue->tx_irq = err; snprintf(queue->rx_irq_name, sizeof(queue->rx_irq_name), "%s-rx", queue->name); - err = bind_evtchn_to_irqhandler(queue->rx_evtchn, - xennet_rx_interrupt, - 0, queue->rx_irq_name, queue); + err = bind_evtchn_to_irqhandler_lateeoi(queue->rx_evtchn, + xennet_rx_interrupt, 0, + queue->rx_irq_name, queue); if (err < 0) goto bind_rx_fail; queue->rx_irq = err; @@ -1911,6 +1973,7 @@ static int xennet_init_queue(struct netfront_queue *queue) spin_lock_init(&queue->tx_lock); spin_lock_init(&queue->rx_lock); + spin_lock_init(&queue->rx_cons_lock); timer_setup(&queue->rx_refill_timer, rx_refill_timeout, 0); |