diff options
author | Yevgeny Petrilin <yevgenyp@mellanox.co.il> | 2008-10-22 15:38:42 -0700 |
---|---|---|
committer | Roland Dreier <rolandd@cisco.com> | 2008-10-22 15:38:42 -0700 |
commit | 7ff93f8b7ecbc36e7ffc5c11a61643821c1bfee5 (patch) | |
tree | 4b38e1ead8b27a480cc766f6927dccf5b63793ae /drivers/net/mlx4 | |
parent | 2a2336f8228292b8197f4187e54b0748903e6645 (diff) | |
download | op-kernel-dev-7ff93f8b7ecbc36e7ffc5c11a61643821c1bfee5.zip op-kernel-dev-7ff93f8b7ecbc36e7ffc5c11a61643821c1bfee5.tar.gz |
mlx4_core: Multiple port type support
Multi-protocol adapters support different port types. Each consumer
of mlx4_core queries for supported port types; in particular mlx4_ib
can no longer assume that all physical ports belong to it. Port type
is configured through a sysfs interface. When the type of a port is
changed, all mlx4 interfaces are unregistered, and then registered
again with the new port types.
Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/net/mlx4')
-rw-r--r-- | drivers/net/mlx4/fw.c | 4 | ||||
-rw-r--r-- | drivers/net/mlx4/fw.h | 1 | ||||
-rw-r--r-- | drivers/net/mlx4/main.c | 211 | ||||
-rw-r--r-- | drivers/net/mlx4/mlx4.h | 6 | ||||
-rw-r--r-- | drivers/net/mlx4/port.c | 23 |
5 files changed, 239 insertions, 6 deletions
diff --git a/drivers/net/mlx4/fw.c b/drivers/net/mlx4/fw.c index 8d402db..be09fdb 100644 --- a/drivers/net/mlx4/fw.c +++ b/drivers/net/mlx4/fw.c @@ -88,6 +88,7 @@ static void dump_dev_cap_flags(struct mlx4_dev *dev, u32 flags) [ 8] = "P_Key violation counter", [ 9] = "Q_Key violation counter", [10] = "VMM", + [12] = "DPDP", [16] = "MW support", [17] = "APM support", [18] = "Atomic ops support", @@ -354,6 +355,7 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev_cap->max_pkeys[i] = 1 << (field & 0xf); } } else { +#define QUERY_PORT_SUPPORTED_TYPE_OFFSET 0x00 #define QUERY_PORT_MTU_OFFSET 0x01 #define QUERY_PORT_ETH_MTU_OFFSET 0x02 #define QUERY_PORT_WIDTH_OFFSET 0x06 @@ -368,6 +370,8 @@ int mlx4_QUERY_DEV_CAP(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) if (err) goto out; + MLX4_GET(field, outbox, QUERY_PORT_SUPPORTED_TYPE_OFFSET); + dev_cap->supported_port_types[i] = field & 3; MLX4_GET(field, outbox, QUERY_PORT_MTU_OFFSET); dev_cap->ib_mtu[i] = field & 0xf; MLX4_GET(field, outbox, QUERY_PORT_WIDTH_OFFSET); diff --git a/drivers/net/mlx4/fw.h b/drivers/net/mlx4/fw.h index d0913d4..526d7f3 100644 --- a/drivers/net/mlx4/fw.h +++ b/drivers/net/mlx4/fw.h @@ -104,6 +104,7 @@ struct mlx4_dev_cap { u32 reserved_lkey; u64 max_icm_sz; int max_gso_sz; + u8 supported_port_types[MLX4_MAX_PORTS + 1]; u8 log_max_macs[MLX4_MAX_PORTS + 1]; u8 log_max_vlans[MLX4_MAX_PORTS + 1]; }; diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index 0a5c8bf..c1d4478 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -98,6 +98,44 @@ module_param_named(use_prio, use_prio, bool, 0444); MODULE_PARM_DESC(use_prio, "Enable steering by VLAN priority on ETH ports " "(0/1, default 0)"); +static int mlx4_check_port_params(struct mlx4_dev *dev, + enum mlx4_port_type *port_type) +{ + int i; + + for (i = 0; i < dev->caps.num_ports - 1; i++) { + if (port_type[i] != port_type[i+1] && + !(dev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) { + mlx4_err(dev, "Only same port types supported " + "on this HCA, aborting.\n"); + return -EINVAL; + } + } + if ((port_type[0] == MLX4_PORT_TYPE_ETH) && + (port_type[1] == MLX4_PORT_TYPE_IB)) { + mlx4_err(dev, "eth-ib configuration is not supported.\n"); + return -EINVAL; + } + + for (i = 0; i < dev->caps.num_ports; i++) { + if (!(port_type[i] & dev->caps.supported_type[i+1])) { + mlx4_err(dev, "Requested port type for port %d is not " + "supported on this HCA\n", i + 1); + return -EINVAL; + } + } + return 0; +} + +static void mlx4_set_port_mask(struct mlx4_dev *dev) +{ + int i; + + dev->caps.port_mask = 0; + for (i = 1; i <= dev->caps.num_ports; ++i) + if (dev->caps.port_type[i] == MLX4_PORT_TYPE_IB) + dev->caps.port_mask |= 1 << (i - 1); +} static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) { int err; @@ -139,6 +177,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.port_width_cap[i] = dev_cap->max_port_width[i]; dev->caps.eth_mtu_cap[i] = dev_cap->eth_mtu[i]; dev->caps.def_mac[i] = dev_cap->def_mac[i]; + dev->caps.supported_type[i] = dev_cap->supported_port_types[i]; } dev->caps.num_uars = dev_cap->uar_size / PAGE_SIZE; @@ -182,6 +221,11 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) dev->caps.log_num_prios = use_prio ? 3 : 0; for (i = 1; i <= dev->caps.num_ports; ++i) { + if (dev->caps.supported_type[i] != MLX4_PORT_TYPE_ETH) + dev->caps.port_type[i] = MLX4_PORT_TYPE_IB; + else + dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH; + if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) { dev->caps.log_num_macs = dev_cap->log_max_macs[i]; mlx4_warn(dev, "Requested number of MACs is too much " @@ -196,6 +240,8 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) } } + mlx4_set_port_mask(dev); + dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FW] = dev_cap->reserved_qps; dev->caps.reserved_qps_cnt[MLX4_QP_REGION_ETH_ADDR] = dev->caps.reserved_qps_cnt[MLX4_QP_REGION_FC_ADDR] = @@ -213,6 +259,95 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap) return 0; } +/* + * Change the port configuration of the device. + * Every user of this function must hold the port mutex. + */ +static int mlx4_change_port_types(struct mlx4_dev *dev, + enum mlx4_port_type *port_types) +{ + int err = 0; + int change = 0; + int port; + + for (port = 0; port < dev->caps.num_ports; port++) { + if (port_types[port] != dev->caps.port_type[port + 1]) { + change = 1; + dev->caps.port_type[port + 1] = port_types[port]; + } + } + if (change) { + mlx4_unregister_device(dev); + for (port = 1; port <= dev->caps.num_ports; port++) { + mlx4_CLOSE_PORT(dev, port); + err = mlx4_SET_PORT(dev, port); + if (err) { + mlx4_err(dev, "Failed to set port %d, " + "aborting\n", port); + goto out; + } + } + mlx4_set_port_mask(dev); + err = mlx4_register_device(dev); + } + +out: + return err; +} + +static ssize_t show_port_type(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, + port_attr); + struct mlx4_dev *mdev = info->dev; + + return sprintf(buf, "%s\n", + mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB ? + "ib" : "eth"); +} + +static ssize_t set_port_type(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, + port_attr); + struct mlx4_dev *mdev = info->dev; + struct mlx4_priv *priv = mlx4_priv(mdev); + enum mlx4_port_type types[MLX4_MAX_PORTS]; + int i; + int err = 0; + + if (!strcmp(buf, "ib\n")) + info->tmp_type = MLX4_PORT_TYPE_IB; + else if (!strcmp(buf, "eth\n")) + info->tmp_type = MLX4_PORT_TYPE_ETH; + else { + mlx4_err(mdev, "%s is not supported port type\n", buf); + return -EINVAL; + } + + mutex_lock(&priv->port_mutex); + for (i = 0; i < mdev->caps.num_ports; i++) + types[i] = priv->port[i+1].tmp_type ? priv->port[i+1].tmp_type : + mdev->caps.port_type[i+1]; + + err = mlx4_check_port_params(mdev, types); + if (err) + goto out; + + for (i = 1; i <= mdev->caps.num_ports; i++) + priv->port[i].tmp_type = 0; + + err = mlx4_change_port_types(mdev, types); + +out: + mutex_unlock(&priv->port_mutex); + return err ? err : count; +} + static int mlx4_load_fw(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -617,6 +752,7 @@ static int mlx4_setup_hca(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); int err; + int port; err = mlx4_init_uar_table(dev); if (err) { @@ -715,8 +851,20 @@ static int mlx4_setup_hca(struct mlx4_dev *dev) goto err_qp_table_free; } + for (port = 1; port <= dev->caps.num_ports; port++) { + err = mlx4_SET_PORT(dev, port); + if (err) { + mlx4_err(dev, "Failed to set port %d, aborting\n", + port); + goto err_mcg_table_free; + } + } + return 0; +err_mcg_table_free: + mlx4_cleanup_mcg_table(dev); + err_qp_table_free: mlx4_cleanup_qp_table(dev); @@ -780,14 +928,37 @@ no_msi: priv->eq_table.eq[i].irq = dev->pdev->irq; } -static void mlx4_init_port_info(struct mlx4_dev *dev, int port) +static int mlx4_init_port_info(struct mlx4_dev *dev, int port) { struct mlx4_port_info *info = &mlx4_priv(dev)->port[port]; + int err = 0; info->dev = dev; info->port = port; mlx4_init_mac_table(dev, &info->mac_table); mlx4_init_vlan_table(dev, &info->vlan_table); + + sprintf(info->dev_name, "mlx4_port%d", port); + info->port_attr.attr.name = info->dev_name; + info->port_attr.attr.mode = S_IRUGO | S_IWUSR; + info->port_attr.show = show_port_type; + info->port_attr.store = set_port_type; + + err = device_create_file(&dev->pdev->dev, &info->port_attr); + if (err) { + mlx4_err(dev, "Failed to create file for port %d\n", port); + info->port = -1; + } + + return err; +} + +static void mlx4_cleanup_port_info(struct mlx4_port_info *info) +{ + if (info->port < 0) + return; + + device_remove_file(&info->dev->pdev->dev, &info->port_attr); } static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) @@ -870,6 +1041,8 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) INIT_LIST_HEAD(&priv->ctx_list); spin_lock_init(&priv->ctx_lock); + mutex_init(&priv->port_mutex); + INIT_LIST_HEAD(&priv->pgdir_list); mutex_init(&priv->pgdir_mutex); @@ -905,18 +1078,24 @@ static int __mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id) if (err) goto err_close; - for (port = 1; port <= dev->caps.num_ports; port++) - mlx4_init_port_info(dev, port); + for (port = 1; port <= dev->caps.num_ports; port++) { + err = mlx4_init_port_info(dev, port); + if (err) + goto err_port; + } err = mlx4_register_device(dev); if (err) - goto err_cleanup; + goto err_port; pci_set_drvdata(pdev, dev); return 0; -err_cleanup: +err_port: + for (port = 1; port <= dev->caps.num_ports; port++) + mlx4_cleanup_port_info(&priv->port[port]); + mlx4_cleanup_mcg_table(dev); mlx4_cleanup_qp_table(dev); mlx4_cleanup_srq_table(dev); @@ -973,8 +1152,10 @@ static void mlx4_remove_one(struct pci_dev *pdev) if (dev) { mlx4_unregister_device(dev); - for (p = 1; p <= dev->caps.num_ports; ++p) + for (p = 1; p <= dev->caps.num_ports; p++) { + mlx4_cleanup_port_info(&priv->port[p]); mlx4_CLOSE_PORT(dev, p); + } mlx4_cleanup_mcg_table(dev); mlx4_cleanup_qp_table(dev); @@ -1026,10 +1207,28 @@ static struct pci_driver mlx4_driver = { .remove = __devexit_p(mlx4_remove_one) }; +static int __init mlx4_verify_params(void) +{ + if ((log_num_mac < 0) || (log_num_mac > 7)) { + printk(KERN_WARNING "mlx4_core: bad num_mac: %d\n", log_num_mac); + return -1; + } + + if ((log_num_vlan < 0) || (log_num_vlan > 7)) { + printk(KERN_WARNING "mlx4_core: bad num_vlan: %d\n", log_num_vlan); + return -1; + } + + return 0; +} + static int __init mlx4_init(void) { int ret; + if (mlx4_verify_params()) + return -EINVAL; + ret = mlx4_catas_init(); if (ret) return ret; diff --git a/drivers/net/mlx4/mlx4.h b/drivers/net/mlx4/mlx4.h index 23309f3..fa431fa 100644 --- a/drivers/net/mlx4/mlx4.h +++ b/drivers/net/mlx4/mlx4.h @@ -277,6 +277,9 @@ struct mlx4_vlan_table { struct mlx4_port_info { struct mlx4_dev *dev; int port; + char dev_name[16]; + struct device_attribute port_attr; + enum mlx4_port_type tmp_type; struct mlx4_mac_table mac_table; struct mlx4_vlan_table vlan_table; }; @@ -310,6 +313,7 @@ struct mlx4_priv { struct mlx4_uar driver_uar; void __iomem *kar; struct mlx4_port_info port[MLX4_MAX_PORTS + 1]; + struct mutex port_mutex; }; static inline struct mlx4_priv *mlx4_priv(struct mlx4_dev *dev) @@ -383,4 +387,6 @@ void mlx4_handle_catas_err(struct mlx4_dev *dev); void mlx4_init_mac_table(struct mlx4_dev *dev, struct mlx4_mac_table *table); void mlx4_init_vlan_table(struct mlx4_dev *dev, struct mlx4_vlan_table *table); +int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port); + #endif /* MLX4_H */ diff --git a/drivers/net/mlx4/port.c b/drivers/net/mlx4/port.c index 8644f3d9..e2fdab4 100644 --- a/drivers/net/mlx4/port.c +++ b/drivers/net/mlx4/port.c @@ -257,3 +257,26 @@ out: mutex_unlock(&table->mutex); } EXPORT_SYMBOL_GPL(mlx4_unregister_vlan); + +int mlx4_SET_PORT(struct mlx4_dev *dev, u8 port) +{ + struct mlx4_cmd_mailbox *mailbox; + int err; + u8 is_eth = dev->caps.port_type[port] == MLX4_PORT_TYPE_ETH; + + mailbox = mlx4_alloc_cmd_mailbox(dev); + if (IS_ERR(mailbox)) + return PTR_ERR(mailbox); + + memset(mailbox->buf, 0, 256); + if (is_eth) { + ((u8 *) mailbox->buf)[3] = 6; + ((__be16 *) mailbox->buf)[4] = cpu_to_be16(1 << 15); + ((__be16 *) mailbox->buf)[6] = cpu_to_be16(1 << 15); + } + err = mlx4_cmd(dev, mailbox->dma, port, is_eth, MLX4_CMD_SET_PORT, + MLX4_CMD_TIME_CLASS_B); + + mlx4_free_cmd_mailbox(dev, mailbox); + return err; +} |