From 62a890557f57e6cbebe9cc6c32aef045405d4fa2 Mon Sep 17 00:00:00 2001 From: Eran Ben Elisha Date: Mon, 15 Jun 2015 17:59:08 +0300 Subject: [PATCH] net/mlx4_en: Support ndo_get_vf_stats Implement the ndo to gather VF statistics through the PF. All counters related to this VF are stored in a per slave list, run over the slave's list and collect all statistics. Signed-off-by: Eran Ben Elisha Signed-off-by: Hadar Hen Zion Signed-off-by: Or Gerlitz Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/cmd.c | 30 ++++++++++++ .../net/ethernet/mellanox/mlx4/en_netdev.c | 10 ++++ drivers/net/ethernet/mellanox/mlx4/mlx4.h | 2 + .../ethernet/mellanox/mlx4/resource_tracker.c | 48 +++++++++++++++++++ include/linux/mlx4/cmd.h | 3 ++ 5 files changed, 93 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/cmd.c b/drivers/net/ethernet/mellanox/mlx4/cmd.c index 44b8f7715ade..82040137d7d9 100644 --- a/drivers/net/ethernet/mellanox/mlx4/cmd.c +++ b/drivers/net/ethernet/mellanox/mlx4/cmd.c @@ -3223,6 +3223,36 @@ if_stat_out: } EXPORT_SYMBOL_GPL(mlx4_get_counter_stats); +int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx, + struct ifla_vf_stats *vf_stats) +{ + struct mlx4_counter tmp_vf_stats; + int slave; + int err = 0; + + if (!vf_stats) + return -EINVAL; + + if (!mlx4_is_master(dev)) + return -EPROTONOSUPPORT; + + slave = mlx4_get_slave_indx(dev, vf_idx); + if (slave < 0) + return -EINVAL; + + port = mlx4_slaves_closest_port(dev, slave, port); + err = mlx4_calc_vf_counters(dev, slave, port, &tmp_vf_stats); + if (!err && tmp_vf_stats.counter_mode == 0) { + vf_stats->rx_packets = be64_to_cpu(tmp_vf_stats.rx_frames); + vf_stats->tx_packets = be64_to_cpu(tmp_vf_stats.tx_frames); + vf_stats->rx_bytes = be64_to_cpu(tmp_vf_stats.rx_bytes); + vf_stats->tx_bytes = be64_to_cpu(tmp_vf_stats.tx_bytes); + } + + return err; +} +EXPORT_SYMBOL_GPL(mlx4_get_vf_stats); + int mlx4_vf_smi_enabled(struct mlx4_dev *dev, int slave, int port) { struct mlx4_priv *priv = mlx4_priv(dev); diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index f9142f22d630..77179d7ae4cc 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -2292,6 +2292,15 @@ static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_st return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state); } +static int mlx4_en_get_vf_stats(struct net_device *dev, int vf, + struct ifla_vf_stats *vf_stats) +{ + struct mlx4_en_priv *en_priv = netdev_priv(dev); + struct mlx4_en_dev *mdev = en_priv->mdev; + + return mlx4_get_vf_stats(mdev->dev, en_priv->port, vf, vf_stats); +} + #define PORT_ID_BYTE_LEN 8 static int mlx4_en_get_phys_port_id(struct net_device *dev, struct netdev_phys_item_id *ppid) @@ -2489,6 +2498,7 @@ static const struct net_device_ops mlx4_netdev_ops_master = { .ndo_set_vf_rate = mlx4_en_set_vf_rate, .ndo_set_vf_spoofchk = mlx4_en_set_vf_spoofchk, .ndo_set_vf_link_state = mlx4_en_set_vf_link_state, + .ndo_get_vf_stats = mlx4_en_get_vf_stats, .ndo_get_vf_config = mlx4_en_get_vf_config, #ifdef CONFIG_NET_POLL_CONTROLLER .ndo_poll_controller = mlx4_en_netpoll, diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h index e9e94bc0e75d..a092c5c34d43 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h @@ -1010,6 +1010,8 @@ int __mlx4_write_mtt(struct mlx4_dev *dev, struct mlx4_mtt *mtt, int start_index, int npages, u64 *page_list); int __mlx4_counter_alloc(struct mlx4_dev *dev, u32 *idx); void __mlx4_counter_free(struct mlx4_dev *dev, u32 idx); +int mlx4_calc_vf_counters(struct mlx4_dev *dev, int slave, int port, + struct mlx4_counter *data); int __mlx4_xrcd_alloc(struct mlx4_dev *dev, u32 *xrcdn); void __mlx4_xrcd_free(struct mlx4_dev *dev, u32 xrcdn); diff --git a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c index 73db584bc240..731423ca575d 100644 --- a/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c +++ b/drivers/net/ethernet/mellanox/mlx4/resource_tracker.c @@ -46,6 +46,7 @@ #include "mlx4.h" #include "fw.h" +#include "mlx4_stats.h" #define MLX4_MAC_VALID (1ull << 63) #define MLX4_PF_COUNTERS_PER_PORT 2 @@ -1147,6 +1148,53 @@ static struct res_common *alloc_tr(u64 id, enum mlx4_resource type, int slave, return ret; } +int mlx4_calc_vf_counters(struct mlx4_dev *dev, int slave, int port, + struct mlx4_counter *data) +{ + struct mlx4_priv *priv = mlx4_priv(dev); + struct mlx4_resource_tracker *tracker = &priv->mfunc.master.res_tracker; + struct res_common *tmp; + struct res_counter *counter; + int *counters_arr; + int i = 0, err = 0; + + memset(data, 0, sizeof(*data)); + + counters_arr = kmalloc_array(dev->caps.max_counters, + sizeof(*counters_arr), GFP_KERNEL); + if (!counters_arr) + return -ENOMEM; + + spin_lock_irq(mlx4_tlock(dev)); + list_for_each_entry(tmp, + &tracker->slave_list[slave].res_list[RES_COUNTER], + list) { + counter = container_of(tmp, struct res_counter, com); + if (counter->port == port) { + counters_arr[i] = (int)tmp->res_id; + i++; + } + } + spin_unlock_irq(mlx4_tlock(dev)); + counters_arr[i] = -1; + + i = 0; + + while (counters_arr[i] != -1) { + err = mlx4_get_counter_stats(dev, counters_arr[i], data, + 0); + if (err) { + memset(data, 0, sizeof(*data)); + goto table_changed; + } + i++; + } + +table_changed: + kfree(counters_arr); + return 0; +} + static int add_res_range(struct mlx4_dev *dev, int slave, u64 base, int count, enum mlx4_resource type, int extra) { diff --git a/include/linux/mlx4/cmd.h b/include/linux/mlx4/cmd.h index 5dffc869988b..58391f2e0414 100644 --- a/include/linux/mlx4/cmd.h +++ b/include/linux/mlx4/cmd.h @@ -36,6 +36,7 @@ #include #include #include +#include enum { /* initialization and general commands */ @@ -303,6 +304,8 @@ void mlx4_free_cmd_mailbox(struct mlx4_dev *dev, struct mlx4_cmd_mailbox *mailbo int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, struct mlx4_counter *counter_stats, int reset); +int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx, + struct ifla_vf_stats *vf_stats); u32 mlx4_comm_get_version(void); int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac); int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan, u8 qos); -- 2.20.1