From: Yan Burman Date: Thu, 7 Feb 2013 02:25:22 +0000 (+0000) Subject: net/mlx4: Move Ethernet related functionality from mlx4_core to mlx4_en X-Git-Tag: v3.12-rc1~1418^2~138^2~5 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=16a10ffd20a13215243bdba64c8e57ef277a55b9;p=kernel%2Fkernel-generic.git net/mlx4: Move Ethernet related functionality from mlx4_core to mlx4_en Move low level code that deals with management of Ethernet MACs and QPs from mlx4_core to mlx4_en. Also convert the new functions to deal with MACs in form of char array instead of u64. Actual functions moved: mlx4_replace_mac mlx4_get_eth_qp mlx4_put_eth_qp To conduct this change, some functionality had to be exported from the core, the following functions were added: mlx4_get_base_qp __mlx4_replace_mac (low level function for CX1/A0 compatibility) Signed-off-by: Yan Burman Signed-off-by: Amir Vadai Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 0843dd7..63a1ef3 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -420,6 +420,206 @@ static void mlx4_en_u64_to_mac(unsigned char dst_mac[ETH_ALEN + 2], u64 src_mac) memset(&dst_mac[ETH_ALEN], 0, 2); } +static int mlx4_en_uc_steer_add(struct mlx4_en_priv *priv, + unsigned char *mac, int *qpn, u64 *reg_id) +{ + struct mlx4_en_dev *mdev = priv->mdev; + struct mlx4_dev *dev = mdev->dev; + int err; + + switch (dev->caps.steering_mode) { + case MLX4_STEERING_MODE_B0: { + struct mlx4_qp qp; + u8 gid[16] = {0}; + + qp.qpn = *qpn; + memcpy(&gid[10], mac, ETH_ALEN); + gid[5] = priv->port; + + err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH); + break; + } + case MLX4_STEERING_MODE_DEVICE_MANAGED: { + struct mlx4_spec_list spec_eth = { {NULL} }; + __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16); + + struct mlx4_net_trans_rule rule = { + .queue_mode = MLX4_NET_TRANS_Q_FIFO, + .exclusive = 0, + .allow_loopback = 1, + .promisc_mode = MLX4_FS_PROMISC_NONE, + .priority = MLX4_DOMAIN_NIC, + }; + + rule.port = priv->port; + rule.qpn = *qpn; + INIT_LIST_HEAD(&rule.list); + + spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH; + memcpy(spec_eth.eth.dst_mac, mac, ETH_ALEN); + memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN); + list_add_tail(&spec_eth.list, &rule.list); + + err = mlx4_flow_attach(dev, &rule, reg_id); + break; + } + default: + return -EINVAL; + } + if (err) + en_warn(priv, "Failed Attaching Unicast\n"); + + return err; +} + +static void mlx4_en_uc_steer_release(struct mlx4_en_priv *priv, + unsigned char *mac, int qpn, u64 reg_id) +{ + struct mlx4_en_dev *mdev = priv->mdev; + struct mlx4_dev *dev = mdev->dev; + + switch (dev->caps.steering_mode) { + case MLX4_STEERING_MODE_B0: { + struct mlx4_qp qp; + u8 gid[16] = {0}; + + qp.qpn = qpn; + memcpy(&gid[10], mac, ETH_ALEN); + gid[5] = priv->port; + + mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH); + break; + } + case MLX4_STEERING_MODE_DEVICE_MANAGED: { + mlx4_flow_detach(dev, reg_id); + break; + } + default: + en_err(priv, "Invalid steering mode.\n"); + } +} + +static int mlx4_en_get_qp(struct mlx4_en_priv *priv) +{ + struct mlx4_en_dev *mdev = priv->mdev; + struct mlx4_dev *dev = mdev->dev; + struct mlx4_mac_entry *entry; + int index = 0; + int err = 0; + u64 reg_id; + int *qpn = &priv->base_qpn; + u64 mac = mlx4_en_mac_to_u64(priv->dev->dev_addr); + + en_dbg(DRV, priv, "Registering MAC: %pM for adding\n", + priv->dev->dev_addr); + index = mlx4_register_mac(dev, priv->port, mac); + if (index < 0) { + err = index; + en_err(priv, "Failed adding MAC: %pM\n", + priv->dev->dev_addr); + return err; + } + + if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { + int base_qpn = mlx4_get_base_qpn(dev, priv->port); + *qpn = base_qpn + index; + return 0; + } + + err = mlx4_qp_reserve_range(dev, 1, 1, qpn); + en_dbg(DRV, priv, "Reserved qp %d\n", *qpn); + if (err) { + en_err(priv, "Failed to reserve qp for mac registration\n"); + goto qp_err; + } + + err = mlx4_en_uc_steer_add(priv, priv->dev->dev_addr, qpn, ®_id); + if (err) + goto steer_err; + + entry = kmalloc(sizeof(*entry), GFP_KERNEL); + if (!entry) { + err = -ENOMEM; + goto alloc_err; + } + memcpy(entry->mac, priv->dev->dev_addr, sizeof(entry->mac)); + entry->reg_id = reg_id; + + err = radix_tree_insert(&priv->mac_tree, *qpn, entry); + if (err) + goto insert_err; + return 0; + +insert_err: + kfree(entry); + +alloc_err: + mlx4_en_uc_steer_release(priv, priv->dev->dev_addr, *qpn, reg_id); + +steer_err: + mlx4_qp_release_range(dev, *qpn, 1); + +qp_err: + mlx4_unregister_mac(dev, priv->port, mac); + return err; +} + +static void mlx4_en_put_qp(struct mlx4_en_priv *priv) +{ + struct mlx4_en_dev *mdev = priv->mdev; + struct mlx4_dev *dev = mdev->dev; + struct mlx4_mac_entry *entry; + int qpn = priv->base_qpn; + u64 mac = mlx4_en_mac_to_u64(priv->dev->dev_addr); + + en_dbg(DRV, priv, "Registering MAC: %pM for deleting\n", + priv->dev->dev_addr); + mlx4_unregister_mac(dev, priv->port, mac); + + if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) { + entry = radix_tree_lookup(&priv->mac_tree, qpn); + if (entry) { + en_dbg(DRV, priv, "Releasing qp: port %d, MAC %pM, qpn %d\n", + priv->port, entry->mac, qpn); + mlx4_en_uc_steer_release(priv, entry->mac, + qpn, entry->reg_id); + mlx4_qp_release_range(dev, qpn, 1); + radix_tree_delete(&priv->mac_tree, qpn); + kfree(entry); + } + } +} + +static int mlx4_en_replace_mac(struct mlx4_en_priv *priv, int qpn, + unsigned char *new_mac) +{ + struct mlx4_en_dev *mdev = priv->mdev; + struct mlx4_dev *dev = mdev->dev; + struct mlx4_mac_entry *entry; + int err = 0; + u64 new_mac_u64 = mlx4_en_mac_to_u64(new_mac); + + if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) { + u64 prev_mac_u64; + + entry = radix_tree_lookup(&priv->mac_tree, qpn); + if (!entry) + return -EINVAL; + prev_mac_u64 = mlx4_en_mac_to_u64(entry->mac); + mlx4_en_uc_steer_release(priv, entry->mac, + qpn, entry->reg_id); + mlx4_unregister_mac(dev, priv->port, prev_mac_u64); + memcpy(entry->mac, new_mac, ETH_ALEN); + entry->reg_id = 0; + mlx4_register_mac(dev, priv->port, new_mac_u64); + err = mlx4_en_uc_steer_add(priv, new_mac, + &qpn, &entry->reg_id); + return err; + } + + return __mlx4_replace_mac(dev, priv->port, qpn, new_mac_u64); +} + u64 mlx4_en_mac_to_u64(u8 *addr) { u64 mac = 0; @@ -456,9 +656,8 @@ static void mlx4_en_do_set_mac(struct work_struct *work) mutex_lock(&mdev->state_lock); if (priv->port_up) { /* Remove old MAC and insert the new one */ - u64 mac = mlx4_en_mac_to_u64(priv->dev->dev_addr); - err = mlx4_replace_mac(mdev->dev, priv->port, - priv->base_qpn, mac); + err = mlx4_en_replace_mac(priv, priv->base_qpn, + priv->dev->dev_addr); if (err) en_err(priv, "Failed changing HW MAC address\n"); memcpy(priv->prev_mac, priv->dev->dev_addr, @@ -1035,7 +1234,6 @@ int mlx4_en_start_port(struct net_device *dev) int i; int j; u8 mc_list[16] = {0}; - u64 mac = mlx4_en_mac_to_u64(dev->dev_addr); if (priv->port_up) { en_dbg(DRV, priv, "start port called while port already up\n"); @@ -1082,8 +1280,7 @@ int mlx4_en_start_port(struct net_device *dev) /* Set qp number */ en_dbg(DRV, priv, "Getting qp number for port %d\n", priv->port); - err = mlx4_get_eth_qp(mdev->dev, priv->port, - mac, &priv->base_qpn); + err = mlx4_en_get_qp(priv); if (err) { en_err(priv, "Failed getting eth qp\n"); goto cq_err; @@ -1196,7 +1393,7 @@ tx_err: rss_err: mlx4_en_release_rss_steer(priv); mac_err: - mlx4_put_eth_qp(mdev->dev, priv->port, mac, priv->base_qpn); + mlx4_en_put_qp(priv); cq_err: while (rx_index--) mlx4_en_deactivate_cq(priv, &priv->rx_cq[rx_index]); @@ -1215,7 +1412,6 @@ void mlx4_en_stop_port(struct net_device *dev, int detach) struct ethtool_flow_id *flow, *tmp_flow; int i; u8 mc_list[16] = {0}; - u64 mac = mlx4_en_mac_to_u64(dev->dev_addr); if (!priv->port_up) { en_dbg(DRV, priv, "stop port called while port already down\n"); @@ -1296,7 +1492,7 @@ void mlx4_en_stop_port(struct net_device *dev, int detach) mlx4_en_release_rss_steer(priv); /* Unregister Mac address for the port */ - mlx4_put_eth_qp(mdev->dev, priv->port, mac, priv->base_qpn); + mlx4_en_put_qp(priv); if (!(mdev->dev->caps.flags2 & MLX4_DEV_CAP_FLAGS2_REASSIGN_MAC_EN)) mdev->mac_removed[priv->port] = 1; @@ -1661,6 +1857,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, dev->dcbnl_ops = &mlx4_en_dcbnl_ops; #endif + INIT_RADIX_TREE(&priv->mac_tree, GFP_KERNEL); + /* Query for default mac and max mtu */ priv->max_mtu = mdev->dev->caps.eth_mtu_cap[priv->port]; diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 12ddae6..2d7b937 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1833,12 +1833,9 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port) info->dev = dev; info->port = port; if (!mlx4_is_slave(dev)) { - INIT_RADIX_TREE(&info->mac_tree, GFP_KERNEL); mlx4_init_mac_table(dev, &info->mac_table); mlx4_init_vlan_table(dev, &info->vlan_table); - info->base_qpn = - dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] + - (port - 1) * (1 << log_num_mac); + info->base_qpn = mlx4_get_base_qpn(dev, port); } sprintf(info->dev_name, "mlx4_port%d", port); diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h index 172daaa..ed4a695 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h @@ -653,11 +653,6 @@ struct mlx4_set_port_rqp_calc_context { __be32 mcast; }; -struct mlx4_mac_entry { - u64 mac; - u64 reg_id; -}; - struct mlx4_port_info { struct mlx4_dev *dev; int port; @@ -667,7 +662,6 @@ struct mlx4_port_info { char dev_mtu_name[16]; struct device_attribute port_mtu_attr; struct mlx4_mac_table mac_table; - struct radix_tree_root mac_tree; struct mlx4_vlan_table vlan_table; int base_qpn; }; @@ -916,7 +910,6 @@ int __mlx4_qp_reserve_range(struct mlx4_dev *dev, int cnt, int align, void __mlx4_qp_release_range(struct mlx4_dev *dev, int base_qpn, int cnt); int __mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac); void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac); -int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac); 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); diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 9d0105d..84ed3285 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -521,6 +521,7 @@ struct mlx4_en_priv { bool wol; struct device *ddev; int base_tx_qpn; + struct radix_tree_root mac_tree; #ifdef CONFIG_MLX4_EN_DCB struct ieee_ets ets; @@ -540,6 +541,11 @@ enum mlx4_en_wol { MLX4_EN_WOL_ENABLED = (1ULL << 62), }; +struct mlx4_mac_entry { + unsigned char mac[ETH_ALEN + 2]; + u64 reg_id; +}; + #define MLX4_EN_WOL_DO_MODIFY (1ULL << 63) void mlx4_en_update_loopback_state(struct net_device *dev, diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c b/drivers/net/ethernet/mellanox/mlx4/port.c index 4c51b05..719ead1 100644 --- a/drivers/net/ethernet/mellanox/mlx4/port.c +++ b/drivers/net/ethernet/mellanox/mlx4/port.c @@ -74,87 +74,6 @@ void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table) table->total = 0; } -static int mlx4_uc_steer_add(struct mlx4_dev *dev, u8 port, - u64 mac, int *qpn, u64 *reg_id) -{ - __be64 be_mac; - int err; - - mac &= MLX4_MAC_MASK; - be_mac = cpu_to_be64(mac << 16); - - switch (dev->caps.steering_mode) { - case MLX4_STEERING_MODE_B0: { - struct mlx4_qp qp; - u8 gid[16] = {0}; - - qp.qpn = *qpn; - memcpy(&gid[10], &be_mac, ETH_ALEN); - gid[5] = port; - - err = mlx4_unicast_attach(dev, &qp, gid, 0, MLX4_PROT_ETH); - break; - } - case MLX4_STEERING_MODE_DEVICE_MANAGED: { - struct mlx4_spec_list spec_eth = { {NULL} }; - __be64 mac_mask = cpu_to_be64(MLX4_MAC_MASK << 16); - - struct mlx4_net_trans_rule rule = { - .queue_mode = MLX4_NET_TRANS_Q_FIFO, - .exclusive = 0, - .allow_loopback = 1, - .promisc_mode = MLX4_FS_PROMISC_NONE, - .priority = MLX4_DOMAIN_NIC, - }; - - rule.port = port; - rule.qpn = *qpn; - INIT_LIST_HEAD(&rule.list); - - spec_eth.id = MLX4_NET_TRANS_RULE_ID_ETH; - memcpy(spec_eth.eth.dst_mac, &be_mac, ETH_ALEN); - memcpy(spec_eth.eth.dst_mac_msk, &mac_mask, ETH_ALEN); - list_add_tail(&spec_eth.list, &rule.list); - - err = mlx4_flow_attach(dev, &rule, reg_id); - break; - } - default: - return -EINVAL; - } - if (err) - mlx4_warn(dev, "Failed Attaching Unicast\n"); - - return err; -} - -static void mlx4_uc_steer_release(struct mlx4_dev *dev, u8 port, - u64 mac, int qpn, u64 reg_id) -{ - switch (dev->caps.steering_mode) { - case MLX4_STEERING_MODE_B0: { - struct mlx4_qp qp; - u8 gid[16] = {0}; - __be64 be_mac; - - qp.qpn = qpn; - mac &= MLX4_MAC_MASK; - be_mac = cpu_to_be64(mac << 16); - memcpy(&gid[10], &be_mac, ETH_ALEN); - gid[5] = port; - - mlx4_unicast_detach(dev, &qp, gid, MLX4_PROT_ETH); - break; - } - case MLX4_STEERING_MODE_DEVICE_MANAGED: { - mlx4_flow_detach(dev, reg_id); - break; - } - default: - mlx4_err(dev, "Invalid steering mode.\n"); - } -} - static int validate_index(struct mlx4_dev *dev, struct mlx4_mac_table *table, int index) { @@ -181,92 +100,6 @@ static int find_index(struct mlx4_dev *dev, return -EINVAL; } -int mlx4_get_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn) -{ - struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; - struct mlx4_mac_entry *entry; - int index = 0; - int err = 0; - u64 reg_id; - - mlx4_dbg(dev, "Registering MAC: 0x%llx for adding\n", - (unsigned long long) mac); - index = mlx4_register_mac(dev, port, mac); - if (index < 0) { - err = index; - mlx4_err(dev, "Failed adding MAC: 0x%llx\n", - (unsigned long long) mac); - return err; - } - - if (dev->caps.steering_mode == MLX4_STEERING_MODE_A0) { - *qpn = info->base_qpn + index; - return 0; - } - - err = mlx4_qp_reserve_range(dev, 1, 1, qpn); - mlx4_dbg(dev, "Reserved qp %d\n", *qpn); - if (err) { - mlx4_err(dev, "Failed to reserve qp for mac registration\n"); - goto qp_err; - } - - err = mlx4_uc_steer_add(dev, port, mac, qpn, ®_id); - if (err) - goto steer_err; - - entry = kmalloc(sizeof *entry, GFP_KERNEL); - if (!entry) { - err = -ENOMEM; - goto alloc_err; - } - entry->mac = mac; - entry->reg_id = reg_id; - err = radix_tree_insert(&info->mac_tree, *qpn, entry); - if (err) - goto insert_err; - return 0; - -insert_err: - kfree(entry); - -alloc_err: - mlx4_uc_steer_release(dev, port, mac, *qpn, reg_id); - -steer_err: - mlx4_qp_release_range(dev, *qpn, 1); - -qp_err: - mlx4_unregister_mac(dev, port, mac); - return err; -} -EXPORT_SYMBOL_GPL(mlx4_get_eth_qp); - -void mlx4_put_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int qpn) -{ - struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; - struct mlx4_mac_entry *entry; - - mlx4_dbg(dev, "Registering MAC: 0x%llx for deleting\n", - (unsigned long long) mac); - mlx4_unregister_mac(dev, port, mac); - - if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) { - entry = radix_tree_lookup(&info->mac_tree, qpn); - if (entry) { - mlx4_dbg(dev, "Releasing qp: port %d, mac 0x%llx," - " qpn %d\n", port, - (unsigned long long) mac, qpn); - mlx4_uc_steer_release(dev, port, entry->mac, - qpn, entry->reg_id); - mlx4_qp_release_range(dev, qpn, 1); - radix_tree_delete(&info->mac_tree, qpn); - kfree(entry); - } - } -} -EXPORT_SYMBOL_GPL(mlx4_put_eth_qp); - static int mlx4_set_port_mac_table(struct mlx4_dev *dev, u8 port, __be64 *entries) { @@ -359,6 +192,12 @@ int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac) } EXPORT_SYMBOL_GPL(mlx4_register_mac); +int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port) +{ + return dev->caps.reserved_qps_base[MLX4_QP_REGION_ETH_ADDR] + + (port - 1) * (1 << dev->caps.log_num_macs); +} +EXPORT_SYMBOL_GPL(mlx4_get_base_qpn); void __mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac) { @@ -397,29 +236,13 @@ void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac) } EXPORT_SYMBOL_GPL(mlx4_unregister_mac); -int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac) +int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac) { struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; struct mlx4_mac_table *table = &info->mac_table; - struct mlx4_mac_entry *entry; int index = qpn - info->base_qpn; int err = 0; - if (dev->caps.steering_mode != MLX4_STEERING_MODE_A0) { - entry = radix_tree_lookup(&info->mac_tree, qpn); - if (!entry) - return -EINVAL; - mlx4_uc_steer_release(dev, port, entry->mac, - qpn, entry->reg_id); - mlx4_unregister_mac(dev, port, entry->mac); - entry->mac = new_mac; - entry->reg_id = 0; - mlx4_register_mac(dev, port, new_mac); - err = mlx4_uc_steer_add(dev, port, entry->mac, - &qpn, &entry->reg_id); - return err; - } - /* CX1 doesn't support multi-functions */ mutex_lock(&table->mutex); @@ -439,7 +262,7 @@ out: mutex_unlock(&table->mutex); return err; } -EXPORT_SYMBOL_GPL(mlx4_replace_mac); +EXPORT_SYMBOL_GPL(__mlx4_replace_mac); static int mlx4_set_port_vlan_table(struct mlx4_dev *dev, u8 port, __be32 *entries) diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h index 1883e8e..6d48fce 100644 --- a/include/linux/mlx4/device.h +++ b/include/linux/mlx4/device.h @@ -956,9 +956,8 @@ int mlx4_SET_MCAST_FLTR(struct mlx4_dev *dev, u8 port, u64 mac, u64 clear, u8 mo int mlx4_register_mac(struct mlx4_dev *dev, u8 port, u64 mac); void mlx4_unregister_mac(struct mlx4_dev *dev, u8 port, u64 mac); -int mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac); -int mlx4_get_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int *qpn); -void mlx4_put_eth_qp(struct mlx4_dev *dev, u8 port, u64 mac, int qpn); +int mlx4_get_base_qpn(struct mlx4_dev *dev, u8 port); +int __mlx4_replace_mac(struct mlx4_dev *dev, u8 port, int qpn, u64 new_mac); void mlx4_set_stats_bitmap(struct mlx4_dev *dev, u64 *stats_bitmap); int mlx4_SET_PORT_general(struct mlx4_dev *dev, u8 port, int mtu, u8 pptx, u8 pfctx, u8 pprx, u8 pfcrx);