1180 lines
28 KiB
C
1180 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Huawei HiNIC PCI Express Linux driver
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* Copyright(c) 2017 Huawei Technologies Co., Ltd
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/pci.h>
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#include <linux/device.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/etherdevice.h>
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#include <linux/netdevice.h>
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#include <linux/slab.h>
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#include <linux/if_vlan.h>
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#include <linux/semaphore.h>
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#include <linux/workqueue.h>
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#include <net/ip.h>
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#include <linux/bitops.h>
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#include <linux/bitmap.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include "hinic_hw_qp.h"
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#include "hinic_hw_dev.h"
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#include "hinic_port.h"
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#include "hinic_tx.h"
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#include "hinic_rx.h"
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#include "hinic_dev.h"
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MODULE_AUTHOR("Huawei Technologies CO., Ltd");
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MODULE_DESCRIPTION("Huawei Intelligent NIC driver");
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MODULE_LICENSE("GPL");
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static unsigned int tx_weight = 64;
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module_param(tx_weight, uint, 0644);
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MODULE_PARM_DESC(tx_weight, "Number Tx packets for NAPI budget (default=64)");
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static unsigned int rx_weight = 64;
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module_param(rx_weight, uint, 0644);
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MODULE_PARM_DESC(rx_weight, "Number Rx packets for NAPI budget (default=64)");
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#define HINIC_DEV_ID_QUAD_PORT_25GE 0x1822
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#define HINIC_DEV_ID_DUAL_PORT_100GE 0x0200
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#define HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ 0x0205
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#define HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ 0x0210
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#define HINIC_WQ_NAME "hinic_dev"
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#define MSG_ENABLE_DEFAULT (NETIF_MSG_DRV | NETIF_MSG_PROBE | \
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NETIF_MSG_IFUP | \
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NETIF_MSG_TX_ERR | NETIF_MSG_RX_ERR)
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#define HINIC_LRO_MAX_WQE_NUM_DEFAULT 8
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#define HINIC_LRO_RX_TIMER_DEFAULT 16
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#define VLAN_BITMAP_SIZE(nic_dev) (ALIGN(VLAN_N_VID, 8) / 8)
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#define work_to_rx_mode_work(work) \
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container_of(work, struct hinic_rx_mode_work, work)
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#define rx_mode_work_to_nic_dev(rx_mode_work) \
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container_of(rx_mode_work, struct hinic_dev, rx_mode_work)
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static int change_mac_addr(struct net_device *netdev, const u8 *addr);
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static int set_features(struct hinic_dev *nic_dev,
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netdev_features_t pre_features,
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netdev_features_t features, bool force_change);
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static void update_rx_stats(struct hinic_dev *nic_dev, struct hinic_rxq *rxq)
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{
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struct hinic_rxq_stats *nic_rx_stats = &nic_dev->rx_stats;
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struct hinic_rxq_stats rx_stats;
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u64_stats_init(&rx_stats.syncp);
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hinic_rxq_get_stats(rxq, &rx_stats);
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u64_stats_update_begin(&nic_rx_stats->syncp);
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nic_rx_stats->bytes += rx_stats.bytes;
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nic_rx_stats->pkts += rx_stats.pkts;
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nic_rx_stats->errors += rx_stats.errors;
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nic_rx_stats->csum_errors += rx_stats.csum_errors;
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nic_rx_stats->other_errors += rx_stats.other_errors;
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u64_stats_update_end(&nic_rx_stats->syncp);
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hinic_rxq_clean_stats(rxq);
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}
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static void update_tx_stats(struct hinic_dev *nic_dev, struct hinic_txq *txq)
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{
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struct hinic_txq_stats *nic_tx_stats = &nic_dev->tx_stats;
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struct hinic_txq_stats tx_stats;
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u64_stats_init(&tx_stats.syncp);
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hinic_txq_get_stats(txq, &tx_stats);
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u64_stats_update_begin(&nic_tx_stats->syncp);
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nic_tx_stats->bytes += tx_stats.bytes;
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nic_tx_stats->pkts += tx_stats.pkts;
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nic_tx_stats->tx_busy += tx_stats.tx_busy;
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nic_tx_stats->tx_wake += tx_stats.tx_wake;
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nic_tx_stats->tx_dropped += tx_stats.tx_dropped;
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nic_tx_stats->big_frags_pkts += tx_stats.big_frags_pkts;
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u64_stats_update_end(&nic_tx_stats->syncp);
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hinic_txq_clean_stats(txq);
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}
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static void update_nic_stats(struct hinic_dev *nic_dev)
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{
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int i, num_qps = hinic_hwdev_num_qps(nic_dev->hwdev);
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for (i = 0; i < num_qps; i++)
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update_rx_stats(nic_dev, &nic_dev->rxqs[i]);
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for (i = 0; i < num_qps; i++)
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update_tx_stats(nic_dev, &nic_dev->txqs[i]);
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}
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/**
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* create_txqs - Create the Logical Tx Queues of specific NIC device
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* @nic_dev: the specific NIC device
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*
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* Return 0 - Success, negative - Failure
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**/
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static int create_txqs(struct hinic_dev *nic_dev)
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{
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int err, i, j, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
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struct net_device *netdev = nic_dev->netdev;
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size_t txq_size;
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if (nic_dev->txqs)
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return -EINVAL;
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txq_size = num_txqs * sizeof(*nic_dev->txqs);
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nic_dev->txqs = devm_kzalloc(&netdev->dev, txq_size, GFP_KERNEL);
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if (!nic_dev->txqs)
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return -ENOMEM;
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for (i = 0; i < num_txqs; i++) {
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struct hinic_sq *sq = hinic_hwdev_get_sq(nic_dev->hwdev, i);
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err = hinic_init_txq(&nic_dev->txqs[i], sq, netdev);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to init Txq\n");
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goto err_init_txq;
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}
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}
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return 0;
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err_init_txq:
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for (j = 0; j < i; j++)
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hinic_clean_txq(&nic_dev->txqs[j]);
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devm_kfree(&netdev->dev, nic_dev->txqs);
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return err;
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}
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/**
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* free_txqs - Free the Logical Tx Queues of specific NIC device
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* @nic_dev: the specific NIC device
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**/
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static void free_txqs(struct hinic_dev *nic_dev)
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{
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int i, num_txqs = hinic_hwdev_num_qps(nic_dev->hwdev);
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struct net_device *netdev = nic_dev->netdev;
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if (!nic_dev->txqs)
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return;
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for (i = 0; i < num_txqs; i++)
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hinic_clean_txq(&nic_dev->txqs[i]);
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devm_kfree(&netdev->dev, nic_dev->txqs);
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nic_dev->txqs = NULL;
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}
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/**
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* create_txqs - Create the Logical Rx Queues of specific NIC device
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* @nic_dev: the specific NIC device
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*
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* Return 0 - Success, negative - Failure
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**/
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static int create_rxqs(struct hinic_dev *nic_dev)
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{
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int err, i, j, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
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struct net_device *netdev = nic_dev->netdev;
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size_t rxq_size;
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if (nic_dev->rxqs)
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return -EINVAL;
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rxq_size = num_rxqs * sizeof(*nic_dev->rxqs);
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nic_dev->rxqs = devm_kzalloc(&netdev->dev, rxq_size, GFP_KERNEL);
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if (!nic_dev->rxqs)
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return -ENOMEM;
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for (i = 0; i < num_rxqs; i++) {
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struct hinic_rq *rq = hinic_hwdev_get_rq(nic_dev->hwdev, i);
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err = hinic_init_rxq(&nic_dev->rxqs[i], rq, netdev);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to init rxq\n");
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goto err_init_rxq;
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}
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}
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return 0;
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err_init_rxq:
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for (j = 0; j < i; j++)
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hinic_clean_rxq(&nic_dev->rxqs[j]);
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devm_kfree(&netdev->dev, nic_dev->rxqs);
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return err;
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}
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/**
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* free_txqs - Free the Logical Rx Queues of specific NIC device
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* @nic_dev: the specific NIC device
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**/
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static void free_rxqs(struct hinic_dev *nic_dev)
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{
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int i, num_rxqs = hinic_hwdev_num_qps(nic_dev->hwdev);
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struct net_device *netdev = nic_dev->netdev;
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if (!nic_dev->rxqs)
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return;
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for (i = 0; i < num_rxqs; i++)
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hinic_clean_rxq(&nic_dev->rxqs[i]);
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devm_kfree(&netdev->dev, nic_dev->rxqs);
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nic_dev->rxqs = NULL;
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}
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static int hinic_configure_max_qnum(struct hinic_dev *nic_dev)
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{
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int err;
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err = hinic_set_max_qnum(nic_dev, nic_dev->hwdev->nic_cap.max_qps);
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if (err)
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return err;
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return 0;
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}
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static int hinic_rss_init(struct hinic_dev *nic_dev)
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{
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u8 default_rss_key[HINIC_RSS_KEY_SIZE];
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u8 tmpl_idx = nic_dev->rss_tmpl_idx;
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u32 *indir_tbl;
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int err, i;
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indir_tbl = kcalloc(HINIC_RSS_INDIR_SIZE, sizeof(u32), GFP_KERNEL);
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if (!indir_tbl)
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return -ENOMEM;
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netdev_rss_key_fill(default_rss_key, sizeof(default_rss_key));
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for (i = 0; i < HINIC_RSS_INDIR_SIZE; i++)
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indir_tbl[i] = ethtool_rxfh_indir_default(i, nic_dev->num_rss);
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err = hinic_rss_set_template_tbl(nic_dev, tmpl_idx, default_rss_key);
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if (err)
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goto out;
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err = hinic_rss_set_indir_tbl(nic_dev, tmpl_idx, indir_tbl);
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if (err)
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goto out;
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err = hinic_set_rss_type(nic_dev, tmpl_idx, nic_dev->rss_type);
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if (err)
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goto out;
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err = hinic_rss_set_hash_engine(nic_dev, tmpl_idx,
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nic_dev->rss_hash_engine);
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if (err)
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goto out;
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err = hinic_rss_cfg(nic_dev, 1, tmpl_idx);
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if (err)
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goto out;
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out:
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kfree(indir_tbl);
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return err;
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}
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static void hinic_rss_deinit(struct hinic_dev *nic_dev)
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{
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hinic_rss_cfg(nic_dev, 0, nic_dev->rss_tmpl_idx);
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}
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static void hinic_init_rss_parameters(struct hinic_dev *nic_dev)
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{
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nic_dev->rss_hash_engine = HINIC_RSS_HASH_ENGINE_TYPE_XOR;
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nic_dev->rss_type.tcp_ipv6_ext = 1;
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nic_dev->rss_type.ipv6_ext = 1;
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nic_dev->rss_type.tcp_ipv6 = 1;
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nic_dev->rss_type.ipv6 = 1;
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nic_dev->rss_type.tcp_ipv4 = 1;
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nic_dev->rss_type.ipv4 = 1;
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nic_dev->rss_type.udp_ipv6 = 1;
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nic_dev->rss_type.udp_ipv4 = 1;
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}
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static void hinic_enable_rss(struct hinic_dev *nic_dev)
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{
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struct net_device *netdev = nic_dev->netdev;
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struct hinic_hwdev *hwdev = nic_dev->hwdev;
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struct hinic_hwif *hwif = hwdev->hwif;
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struct pci_dev *pdev = hwif->pdev;
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int i, node, err = 0;
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u16 num_cpus = 0;
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nic_dev->max_qps = hinic_hwdev_max_num_qps(hwdev);
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if (nic_dev->max_qps <= 1) {
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nic_dev->flags &= ~HINIC_RSS_ENABLE;
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nic_dev->rss_limit = nic_dev->max_qps;
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nic_dev->num_qps = nic_dev->max_qps;
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nic_dev->num_rss = nic_dev->max_qps;
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return;
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}
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err = hinic_rss_template_alloc(nic_dev, &nic_dev->rss_tmpl_idx);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to alloc tmpl_idx for rss, can't enable rss for this function\n");
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nic_dev->flags &= ~HINIC_RSS_ENABLE;
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nic_dev->max_qps = 1;
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nic_dev->rss_limit = nic_dev->max_qps;
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nic_dev->num_qps = nic_dev->max_qps;
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nic_dev->num_rss = nic_dev->max_qps;
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return;
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}
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nic_dev->flags |= HINIC_RSS_ENABLE;
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for (i = 0; i < num_online_cpus(); i++) {
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node = cpu_to_node(i);
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if (node == dev_to_node(&pdev->dev))
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num_cpus++;
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}
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if (!num_cpus)
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num_cpus = num_online_cpus();
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nic_dev->num_qps = hinic_hwdev_num_qps(hwdev);
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nic_dev->num_qps = min_t(u16, nic_dev->num_qps, num_cpus);
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nic_dev->rss_limit = nic_dev->num_qps;
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nic_dev->num_rss = nic_dev->num_qps;
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hinic_init_rss_parameters(nic_dev);
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err = hinic_rss_init(nic_dev);
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if (err)
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netif_err(nic_dev, drv, netdev, "Failed to init rss\n");
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}
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static int hinic_open(struct net_device *netdev)
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{
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struct hinic_dev *nic_dev = netdev_priv(netdev);
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enum hinic_port_link_state link_state;
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int err, ret;
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if (!(nic_dev->flags & HINIC_INTF_UP)) {
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err = hinic_hwdev_ifup(nic_dev->hwdev);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed - HW interface up\n");
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return err;
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}
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}
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err = create_txqs(nic_dev);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to create Tx queues\n");
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goto err_create_txqs;
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}
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err = create_rxqs(nic_dev);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to create Rx queues\n");
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goto err_create_rxqs;
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}
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hinic_enable_rss(nic_dev);
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err = hinic_configure_max_qnum(nic_dev);
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if (err) {
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netif_err(nic_dev, drv, nic_dev->netdev,
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"Failed to configure the maximum number of queues\n");
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goto err_port_state;
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}
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netif_set_real_num_tx_queues(netdev, nic_dev->num_qps);
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netif_set_real_num_rx_queues(netdev, nic_dev->num_qps);
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err = hinic_port_set_state(nic_dev, HINIC_PORT_ENABLE);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to set port state\n");
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goto err_port_state;
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}
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err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_ENABLE);
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if (err) {
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netif_err(nic_dev, drv, netdev,
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"Failed to set func port state\n");
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goto err_func_port_state;
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}
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/* Wait up to 3 sec between port enable to link state */
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msleep(3000);
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down(&nic_dev->mgmt_lock);
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err = hinic_port_link_state(nic_dev, &link_state);
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if (err) {
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netif_err(nic_dev, drv, netdev, "Failed to get link state\n");
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goto err_port_link;
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}
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if (link_state == HINIC_LINK_STATE_UP)
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nic_dev->flags |= HINIC_LINK_UP;
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nic_dev->flags |= HINIC_INTF_UP;
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if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
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(HINIC_LINK_UP | HINIC_INTF_UP)) {
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netif_info(nic_dev, drv, netdev, "link + intf UP\n");
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netif_carrier_on(netdev);
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netif_tx_wake_all_queues(netdev);
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}
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up(&nic_dev->mgmt_lock);
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netif_info(nic_dev, drv, netdev, "HINIC_INTF is UP\n");
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return 0;
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err_port_link:
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up(&nic_dev->mgmt_lock);
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ret = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
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if (ret)
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netif_warn(nic_dev, drv, netdev,
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"Failed to revert func port state\n");
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err_func_port_state:
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ret = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
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if (ret)
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netif_warn(nic_dev, drv, netdev,
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"Failed to revert port state\n");
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err_port_state:
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free_rxqs(nic_dev);
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if (nic_dev->flags & HINIC_RSS_ENABLE) {
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hinic_rss_deinit(nic_dev);
|
|
hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
|
|
}
|
|
|
|
err_create_rxqs:
|
|
free_txqs(nic_dev);
|
|
|
|
err_create_txqs:
|
|
if (!(nic_dev->flags & HINIC_INTF_UP))
|
|
hinic_hwdev_ifdown(nic_dev->hwdev);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_close(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
unsigned int flags;
|
|
int err;
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
flags = nic_dev->flags;
|
|
nic_dev->flags &= ~HINIC_INTF_UP;
|
|
|
|
netif_carrier_off(netdev);
|
|
netif_tx_disable(netdev);
|
|
|
|
update_nic_stats(nic_dev);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_set_func_state(nic_dev, HINIC_FUNC_PORT_DISABLE);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to set func port state\n");
|
|
nic_dev->flags |= (flags & HINIC_INTF_UP);
|
|
return err;
|
|
}
|
|
|
|
err = hinic_port_set_state(nic_dev, HINIC_PORT_DISABLE);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to set port state\n");
|
|
nic_dev->flags |= (flags & HINIC_INTF_UP);
|
|
return err;
|
|
}
|
|
|
|
if (nic_dev->flags & HINIC_RSS_ENABLE) {
|
|
hinic_rss_deinit(nic_dev);
|
|
hinic_rss_template_free(nic_dev, nic_dev->rss_tmpl_idx);
|
|
}
|
|
|
|
free_rxqs(nic_dev);
|
|
free_txqs(nic_dev);
|
|
|
|
if (flags & HINIC_INTF_UP)
|
|
hinic_hwdev_ifdown(nic_dev->hwdev);
|
|
|
|
netif_info(nic_dev, drv, netdev, "HINIC_INTF is DOWN\n");
|
|
return 0;
|
|
}
|
|
|
|
static int hinic_change_mtu(struct net_device *netdev, int new_mtu)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
int err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "set_mtu = %d\n", new_mtu);
|
|
|
|
err = hinic_port_set_mtu(nic_dev, new_mtu);
|
|
if (err)
|
|
netif_err(nic_dev, drv, netdev, "Failed to set port mtu\n");
|
|
else
|
|
netdev->mtu = new_mtu;
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* change_mac_addr - change the main mac address of network device
|
|
* @netdev: network device
|
|
* @addr: mac address to set
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int change_mac_addr(struct net_device *netdev, const u8 *addr)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
u16 vid = 0;
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(addr))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
netif_info(nic_dev, drv, netdev, "change mac addr = %02x %02x %02x %02x %02x %02x\n",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
do {
|
|
err = hinic_port_del_mac(nic_dev, netdev->dev_addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to delete mac\n");
|
|
break;
|
|
}
|
|
|
|
err = hinic_port_add_mac(nic_dev, addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
|
|
break;
|
|
}
|
|
|
|
vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
|
|
} while (vid != VLAN_N_VID);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_set_mac_addr(struct net_device *netdev, void *addr)
|
|
{
|
|
unsigned char new_mac[ETH_ALEN];
|
|
struct sockaddr *saddr = addr;
|
|
int err;
|
|
|
|
memcpy(new_mac, saddr->sa_data, ETH_ALEN);
|
|
|
|
err = change_mac_addr(netdev, new_mac);
|
|
if (!err)
|
|
memcpy(netdev->dev_addr, new_mac, ETH_ALEN);
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* add_mac_addr - add mac address to network device
|
|
* @netdev: network device
|
|
* @addr: mac address to add
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int add_mac_addr(struct net_device *netdev, const u8 *addr)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
u16 vid = 0;
|
|
int err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "set mac addr = %02x %02x %02x %02x %02x %02x\n",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
do {
|
|
err = hinic_port_add_mac(nic_dev, addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to add mac\n");
|
|
break;
|
|
}
|
|
|
|
vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
|
|
} while (vid != VLAN_N_VID);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* remove_mac_addr - remove mac address from network device
|
|
* @netdev: network device
|
|
* @addr: mac address to remove
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int remove_mac_addr(struct net_device *netdev, const u8 *addr)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
u16 vid = 0;
|
|
int err;
|
|
|
|
if (!is_valid_ether_addr(addr))
|
|
return -EADDRNOTAVAIL;
|
|
|
|
netif_info(nic_dev, drv, netdev, "remove mac addr = %02x %02x %02x %02x %02x %02x\n",
|
|
addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
do {
|
|
err = hinic_port_del_mac(nic_dev, addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to delete mac\n");
|
|
break;
|
|
}
|
|
|
|
vid = find_next_bit(nic_dev->vlan_bitmap, VLAN_N_VID, vid + 1);
|
|
} while (vid != VLAN_N_VID);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_vlan_rx_add_vid(struct net_device *netdev,
|
|
__always_unused __be16 proto, u16 vid)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
int ret, err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "add vid = %d\n", vid);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_add_vlan(nic_dev, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to add vlan\n");
|
|
goto err_vlan_add;
|
|
}
|
|
|
|
err = hinic_port_add_mac(nic_dev, netdev->dev_addr, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to set mac\n");
|
|
goto err_add_mac;
|
|
}
|
|
|
|
bitmap_set(nic_dev->vlan_bitmap, vid, 1);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return 0;
|
|
|
|
err_add_mac:
|
|
ret = hinic_port_del_vlan(nic_dev, vid);
|
|
if (ret)
|
|
netif_err(nic_dev, drv, netdev,
|
|
"Failed to revert by removing vlan\n");
|
|
|
|
err_vlan_add:
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_vlan_rx_kill_vid(struct net_device *netdev,
|
|
__always_unused __be16 proto, u16 vid)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
int err;
|
|
|
|
netif_info(nic_dev, drv, netdev, "remove vid = %d\n", vid);
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
err = hinic_port_del_vlan(nic_dev, vid);
|
|
if (err) {
|
|
netif_err(nic_dev, drv, netdev, "Failed to delete vlan\n");
|
|
goto err_del_vlan;
|
|
}
|
|
|
|
bitmap_clear(nic_dev->vlan_bitmap, vid, 1);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
return 0;
|
|
|
|
err_del_vlan:
|
|
up(&nic_dev->mgmt_lock);
|
|
return err;
|
|
}
|
|
|
|
static void set_rx_mode(struct work_struct *work)
|
|
{
|
|
struct hinic_rx_mode_work *rx_mode_work = work_to_rx_mode_work(work);
|
|
struct hinic_dev *nic_dev = rx_mode_work_to_nic_dev(rx_mode_work);
|
|
|
|
netif_info(nic_dev, drv, nic_dev->netdev, "set rx mode work\n");
|
|
|
|
hinic_port_set_rx_mode(nic_dev, rx_mode_work->rx_mode);
|
|
|
|
__dev_uc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
|
|
__dev_mc_sync(nic_dev->netdev, add_mac_addr, remove_mac_addr);
|
|
}
|
|
|
|
static void hinic_set_rx_mode(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_rx_mode_work *rx_mode_work;
|
|
u32 rx_mode;
|
|
|
|
rx_mode_work = &nic_dev->rx_mode_work;
|
|
|
|
rx_mode = HINIC_RX_MODE_UC |
|
|
HINIC_RX_MODE_MC |
|
|
HINIC_RX_MODE_BC;
|
|
|
|
if (netdev->flags & IFF_PROMISC)
|
|
rx_mode |= HINIC_RX_MODE_PROMISC;
|
|
else if (netdev->flags & IFF_ALLMULTI)
|
|
rx_mode |= HINIC_RX_MODE_MC_ALL;
|
|
|
|
rx_mode_work->rx_mode = rx_mode;
|
|
|
|
queue_work(nic_dev->workq, &rx_mode_work->work);
|
|
}
|
|
|
|
static void hinic_tx_timeout(struct net_device *netdev)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
|
|
netif_err(nic_dev, drv, netdev, "Tx timeout\n");
|
|
}
|
|
|
|
static void hinic_get_stats64(struct net_device *netdev,
|
|
struct rtnl_link_stats64 *stats)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_rxq_stats *nic_rx_stats;
|
|
struct hinic_txq_stats *nic_tx_stats;
|
|
|
|
nic_rx_stats = &nic_dev->rx_stats;
|
|
nic_tx_stats = &nic_dev->tx_stats;
|
|
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
if (nic_dev->flags & HINIC_INTF_UP)
|
|
update_nic_stats(nic_dev);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
stats->rx_bytes = nic_rx_stats->bytes;
|
|
stats->rx_packets = nic_rx_stats->pkts;
|
|
stats->rx_errors = nic_rx_stats->errors;
|
|
|
|
stats->tx_bytes = nic_tx_stats->bytes;
|
|
stats->tx_packets = nic_tx_stats->pkts;
|
|
stats->tx_errors = nic_tx_stats->tx_dropped;
|
|
}
|
|
|
|
static int hinic_set_features(struct net_device *netdev,
|
|
netdev_features_t features)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
|
|
return set_features(nic_dev, nic_dev->netdev->features,
|
|
features, false);
|
|
}
|
|
|
|
static netdev_features_t hinic_fix_features(struct net_device *netdev,
|
|
netdev_features_t features)
|
|
{
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
|
|
/* If Rx checksum is disabled, then LRO should also be disabled */
|
|
if (!(features & NETIF_F_RXCSUM)) {
|
|
netif_info(nic_dev, drv, netdev, "disabling LRO as RXCSUM is off\n");
|
|
features &= ~NETIF_F_LRO;
|
|
}
|
|
|
|
return features;
|
|
}
|
|
|
|
static const struct net_device_ops hinic_netdev_ops = {
|
|
.ndo_open = hinic_open,
|
|
.ndo_stop = hinic_close,
|
|
.ndo_change_mtu = hinic_change_mtu,
|
|
.ndo_set_mac_address = hinic_set_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
.ndo_vlan_rx_add_vid = hinic_vlan_rx_add_vid,
|
|
.ndo_vlan_rx_kill_vid = hinic_vlan_rx_kill_vid,
|
|
.ndo_set_rx_mode = hinic_set_rx_mode,
|
|
.ndo_start_xmit = hinic_xmit_frame,
|
|
.ndo_tx_timeout = hinic_tx_timeout,
|
|
.ndo_get_stats64 = hinic_get_stats64,
|
|
.ndo_fix_features = hinic_fix_features,
|
|
.ndo_set_features = hinic_set_features,
|
|
};
|
|
|
|
static void netdev_features_init(struct net_device *netdev)
|
|
{
|
|
netdev->hw_features = NETIF_F_SG | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM |
|
|
NETIF_F_IPV6_CSUM | NETIF_F_TSO | NETIF_F_TSO6 |
|
|
NETIF_F_RXCSUM | NETIF_F_LRO |
|
|
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
|
|
|
|
netdev->vlan_features = netdev->hw_features;
|
|
|
|
netdev->features = netdev->hw_features | NETIF_F_HW_VLAN_CTAG_FILTER;
|
|
}
|
|
|
|
/**
|
|
* link_status_event_handler - link event handler
|
|
* @handle: nic device for the handler
|
|
* @buf_in: input buffer
|
|
* @in_size: input size
|
|
* @buf_in: output buffer
|
|
* @out_size: returned output size
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static void link_status_event_handler(void *handle, void *buf_in, u16 in_size,
|
|
void *buf_out, u16 *out_size)
|
|
{
|
|
struct hinic_port_link_status *link_status, *ret_link_status;
|
|
struct hinic_dev *nic_dev = handle;
|
|
|
|
link_status = buf_in;
|
|
|
|
if (link_status->link == HINIC_LINK_STATE_UP) {
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
nic_dev->flags |= HINIC_LINK_UP;
|
|
|
|
if ((nic_dev->flags & (HINIC_LINK_UP | HINIC_INTF_UP)) ==
|
|
(HINIC_LINK_UP | HINIC_INTF_UP)) {
|
|
netif_carrier_on(nic_dev->netdev);
|
|
netif_tx_wake_all_queues(nic_dev->netdev);
|
|
}
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is UP\n");
|
|
} else {
|
|
down(&nic_dev->mgmt_lock);
|
|
|
|
nic_dev->flags &= ~HINIC_LINK_UP;
|
|
|
|
netif_carrier_off(nic_dev->netdev);
|
|
netif_tx_disable(nic_dev->netdev);
|
|
|
|
up(&nic_dev->mgmt_lock);
|
|
|
|
netif_info(nic_dev, drv, nic_dev->netdev, "HINIC_Link is DOWN\n");
|
|
}
|
|
|
|
ret_link_status = buf_out;
|
|
ret_link_status->status = 0;
|
|
|
|
*out_size = sizeof(*ret_link_status);
|
|
}
|
|
|
|
static int set_features(struct hinic_dev *nic_dev,
|
|
netdev_features_t pre_features,
|
|
netdev_features_t features, bool force_change)
|
|
{
|
|
netdev_features_t changed = force_change ? ~0 : pre_features ^ features;
|
|
u32 csum_en = HINIC_RX_CSUM_OFFLOAD_EN;
|
|
int err = 0;
|
|
|
|
if (changed & NETIF_F_TSO)
|
|
err = hinic_port_set_tso(nic_dev, (features & NETIF_F_TSO) ?
|
|
HINIC_TSO_ENABLE : HINIC_TSO_DISABLE);
|
|
|
|
if (changed & NETIF_F_RXCSUM)
|
|
err = hinic_set_rx_csum_offload(nic_dev, csum_en);
|
|
|
|
if (changed & NETIF_F_LRO) {
|
|
err = hinic_set_rx_lro_state(nic_dev,
|
|
!!(features & NETIF_F_LRO),
|
|
HINIC_LRO_RX_TIMER_DEFAULT,
|
|
HINIC_LRO_MAX_WQE_NUM_DEFAULT);
|
|
}
|
|
|
|
if (changed & NETIF_F_HW_VLAN_CTAG_RX)
|
|
err = hinic_set_rx_vlan_offload(nic_dev,
|
|
!!(features &
|
|
NETIF_F_HW_VLAN_CTAG_RX));
|
|
|
|
return err;
|
|
}
|
|
|
|
/**
|
|
* nic_dev_init - Initialize the NIC device
|
|
* @pdev: the NIC pci device
|
|
*
|
|
* Return 0 - Success, negative - Failure
|
|
**/
|
|
static int nic_dev_init(struct pci_dev *pdev)
|
|
{
|
|
struct hinic_rx_mode_work *rx_mode_work;
|
|
struct hinic_txq_stats *tx_stats;
|
|
struct hinic_rxq_stats *rx_stats;
|
|
struct hinic_dev *nic_dev;
|
|
struct net_device *netdev;
|
|
struct hinic_hwdev *hwdev;
|
|
int err, num_qps;
|
|
|
|
hwdev = hinic_init_hwdev(pdev);
|
|
if (IS_ERR(hwdev)) {
|
|
dev_err(&pdev->dev, "Failed to initialize HW device\n");
|
|
return PTR_ERR(hwdev);
|
|
}
|
|
|
|
num_qps = hinic_hwdev_num_qps(hwdev);
|
|
if (num_qps <= 0) {
|
|
dev_err(&pdev->dev, "Invalid number of QPS\n");
|
|
err = -EINVAL;
|
|
goto err_num_qps;
|
|
}
|
|
|
|
netdev = alloc_etherdev_mq(sizeof(*nic_dev), num_qps);
|
|
if (!netdev) {
|
|
dev_err(&pdev->dev, "Failed to allocate Ethernet device\n");
|
|
err = -ENOMEM;
|
|
goto err_alloc_etherdev;
|
|
}
|
|
|
|
hinic_set_ethtool_ops(netdev);
|
|
netdev->netdev_ops = &hinic_netdev_ops;
|
|
netdev->max_mtu = ETH_MAX_MTU;
|
|
|
|
nic_dev = netdev_priv(netdev);
|
|
nic_dev->netdev = netdev;
|
|
nic_dev->hwdev = hwdev;
|
|
nic_dev->msg_enable = MSG_ENABLE_DEFAULT;
|
|
nic_dev->flags = 0;
|
|
nic_dev->txqs = NULL;
|
|
nic_dev->rxqs = NULL;
|
|
nic_dev->tx_weight = tx_weight;
|
|
nic_dev->rx_weight = rx_weight;
|
|
|
|
sema_init(&nic_dev->mgmt_lock, 1);
|
|
|
|
tx_stats = &nic_dev->tx_stats;
|
|
rx_stats = &nic_dev->rx_stats;
|
|
|
|
u64_stats_init(&tx_stats->syncp);
|
|
u64_stats_init(&rx_stats->syncp);
|
|
|
|
nic_dev->vlan_bitmap = devm_kzalloc(&pdev->dev,
|
|
VLAN_BITMAP_SIZE(nic_dev),
|
|
GFP_KERNEL);
|
|
if (!nic_dev->vlan_bitmap) {
|
|
err = -ENOMEM;
|
|
goto err_vlan_bitmap;
|
|
}
|
|
|
|
nic_dev->workq = create_singlethread_workqueue(HINIC_WQ_NAME);
|
|
if (!nic_dev->workq) {
|
|
err = -ENOMEM;
|
|
goto err_workq;
|
|
}
|
|
|
|
pci_set_drvdata(pdev, netdev);
|
|
|
|
err = hinic_port_get_mac(nic_dev, netdev->dev_addr);
|
|
if (err)
|
|
dev_warn(&pdev->dev, "Failed to get mac address\n");
|
|
|
|
err = hinic_port_add_mac(nic_dev, netdev->dev_addr, 0);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to add mac\n");
|
|
goto err_add_mac;
|
|
}
|
|
|
|
err = hinic_port_set_mtu(nic_dev, netdev->mtu);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to set mtu\n");
|
|
goto err_set_mtu;
|
|
}
|
|
|
|
rx_mode_work = &nic_dev->rx_mode_work;
|
|
INIT_WORK(&rx_mode_work->work, set_rx_mode);
|
|
|
|
netdev_features_init(netdev);
|
|
|
|
netif_carrier_off(netdev);
|
|
|
|
hinic_hwdev_cb_register(nic_dev->hwdev, HINIC_MGMT_MSG_CMD_LINK_STATUS,
|
|
nic_dev, link_status_event_handler);
|
|
|
|
err = set_features(nic_dev, 0, nic_dev->netdev->features, true);
|
|
if (err)
|
|
goto err_set_features;
|
|
|
|
SET_NETDEV_DEV(netdev, &pdev->dev);
|
|
|
|
err = register_netdev(netdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to register netdev\n");
|
|
goto err_reg_netdev;
|
|
}
|
|
|
|
return 0;
|
|
|
|
err_reg_netdev:
|
|
err_set_features:
|
|
hinic_hwdev_cb_unregister(nic_dev->hwdev,
|
|
HINIC_MGMT_MSG_CMD_LINK_STATUS);
|
|
cancel_work_sync(&rx_mode_work->work);
|
|
|
|
err_set_mtu:
|
|
err_add_mac:
|
|
pci_set_drvdata(pdev, NULL);
|
|
destroy_workqueue(nic_dev->workq);
|
|
|
|
err_workq:
|
|
err_vlan_bitmap:
|
|
free_netdev(netdev);
|
|
|
|
err_alloc_etherdev:
|
|
err_num_qps:
|
|
hinic_free_hwdev(hwdev);
|
|
return err;
|
|
}
|
|
|
|
static int hinic_probe(struct pci_dev *pdev,
|
|
const struct pci_device_id *id)
|
|
{
|
|
int err = pci_enable_device(pdev);
|
|
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to enable PCI device\n");
|
|
return err;
|
|
}
|
|
|
|
err = pci_request_regions(pdev, HINIC_DRV_NAME);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to request PCI regions\n");
|
|
goto err_pci_regions;
|
|
}
|
|
|
|
pci_set_master(pdev);
|
|
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_warn(&pdev->dev, "Couldn't set 64-bit DMA mask\n");
|
|
err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to set DMA mask\n");
|
|
goto err_dma_mask;
|
|
}
|
|
}
|
|
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
|
|
if (err) {
|
|
dev_warn(&pdev->dev,
|
|
"Couldn't set 64-bit consistent DMA mask\n");
|
|
err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(32));
|
|
if (err) {
|
|
dev_err(&pdev->dev,
|
|
"Failed to set consistent DMA mask\n");
|
|
goto err_dma_consistent_mask;
|
|
}
|
|
}
|
|
|
|
err = nic_dev_init(pdev);
|
|
if (err) {
|
|
dev_err(&pdev->dev, "Failed to initialize NIC device\n");
|
|
goto err_nic_dev_init;
|
|
}
|
|
|
|
dev_info(&pdev->dev, "HiNIC driver - probed\n");
|
|
return 0;
|
|
|
|
err_nic_dev_init:
|
|
err_dma_consistent_mask:
|
|
err_dma_mask:
|
|
pci_release_regions(pdev);
|
|
|
|
err_pci_regions:
|
|
pci_disable_device(pdev);
|
|
return err;
|
|
}
|
|
|
|
static void hinic_remove(struct pci_dev *pdev)
|
|
{
|
|
struct net_device *netdev = pci_get_drvdata(pdev);
|
|
struct hinic_dev *nic_dev = netdev_priv(netdev);
|
|
struct hinic_rx_mode_work *rx_mode_work;
|
|
|
|
unregister_netdev(netdev);
|
|
|
|
hinic_hwdev_cb_unregister(nic_dev->hwdev,
|
|
HINIC_MGMT_MSG_CMD_LINK_STATUS);
|
|
|
|
rx_mode_work = &nic_dev->rx_mode_work;
|
|
cancel_work_sync(&rx_mode_work->work);
|
|
|
|
pci_set_drvdata(pdev, NULL);
|
|
|
|
destroy_workqueue(nic_dev->workq);
|
|
|
|
hinic_free_hwdev(nic_dev->hwdev);
|
|
|
|
free_netdev(netdev);
|
|
|
|
pci_release_regions(pdev);
|
|
pci_disable_device(pdev);
|
|
|
|
dev_info(&pdev->dev, "HiNIC driver - removed\n");
|
|
}
|
|
|
|
static void hinic_shutdown(struct pci_dev *pdev)
|
|
{
|
|
pci_disable_device(pdev);
|
|
}
|
|
|
|
static const struct pci_device_id hinic_pci_table[] = {
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE), 0},
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE), 0},
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_DUAL_PORT_100GE_MEZZ), 0},
|
|
{ PCI_VDEVICE(HUAWEI, HINIC_DEV_ID_QUAD_PORT_25GE_MEZZ), 0},
|
|
{ 0, 0}
|
|
};
|
|
MODULE_DEVICE_TABLE(pci, hinic_pci_table);
|
|
|
|
static struct pci_driver hinic_driver = {
|
|
.name = HINIC_DRV_NAME,
|
|
.id_table = hinic_pci_table,
|
|
.probe = hinic_probe,
|
|
.remove = hinic_remove,
|
|
.shutdown = hinic_shutdown,
|
|
};
|
|
|
|
module_pci_driver(hinic_driver);
|