MODULE_LICENSE("Dual BSD/GPL");
MODULE_VERSION(DRV_VERSION);
+struct workqueue_struct *mlx4_wq;
+
#ifdef CONFIG_MLX4_DEBUG
int mlx4_debug_level = 0;
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 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[i] != port_type[i + 1]) {
+ if (!(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[i] == MLX4_PORT_TYPE_ETH &&
+ port_type[i + 1] == MLX4_PORT_TYPE_IB)
+ 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])) {
dev->caps.port_type[i] = MLX4_PORT_TYPE_IB;
else
dev->caps.port_type[i] = MLX4_PORT_TYPE_ETH;
+ dev->caps.possible_type[i] = dev->caps.port_type[i];
+ mlx4_priv(dev)->sense.sense_allowed[i] =
+ dev->caps.supported_type[i] == MLX4_PORT_TYPE_AUTO;
if (dev->caps.log_num_macs > dev_cap->log_max_macs[i]) {
dev->caps.log_num_macs = dev_cap->log_max_macs[i];
* 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 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++) {
+ /* Change the port type only if the new type is different
+ * from the current, and not set to Auto */
if (port_types[port] != dev->caps.port_type[port + 1]) {
change = 1;
dev->caps.port_type[port + 1] = port_types[port];
struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info,
port_attr);
struct mlx4_dev *mdev = info->dev;
+ char type[8];
+
+ sprintf(type, "%s",
+ (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB) ?
+ "ib" : "eth");
+ if (mdev->caps.possible_type[info->port] == MLX4_PORT_TYPE_AUTO)
+ sprintf(buf, "auto (%s)\n", type);
+ else
+ sprintf(buf, "%s\n", type);
- return sprintf(buf, "%s\n",
- mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_IB ?
- "ib" : "eth");
+ return strlen(buf);
}
static ssize_t set_port_type(struct device *dev,
struct mlx4_dev *mdev = info->dev;
struct mlx4_priv *priv = mlx4_priv(mdev);
enum mlx4_port_type types[MLX4_MAX_PORTS];
+ enum mlx4_port_type new_types[MLX4_MAX_PORTS];
int i;
int err = 0;
info->tmp_type = MLX4_PORT_TYPE_IB;
else if (!strcmp(buf, "eth\n"))
info->tmp_type = MLX4_PORT_TYPE_ETH;
+ else if (!strcmp(buf, "auto\n"))
+ info->tmp_type = MLX4_PORT_TYPE_AUTO;
else {
mlx4_err(mdev, "%s is not supported port type\n", buf);
return -EINVAL;
}
+ mlx4_stop_sense(mdev);
mutex_lock(&priv->port_mutex);
- for (i = 0; i < mdev->caps.num_ports; i++)
+ /* Possible type is always the one that was delivered */
+ mdev->caps.possible_type[info->port] = info->tmp_type;
+
+ 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];
+ mdev->caps.possible_type[i+1];
+ if (types[i] == MLX4_PORT_TYPE_AUTO)
+ types[i] = mdev->caps.port_type[i+1];
+ }
+
+ if (!(mdev->caps.flags & MLX4_DEV_CAP_FLAG_DPDP)) {
+ for (i = 1; i <= mdev->caps.num_ports; i++) {
+ if (mdev->caps.possible_type[i] == MLX4_PORT_TYPE_AUTO) {
+ mdev->caps.possible_type[i] = mdev->caps.port_type[i];
+ err = -EINVAL;
+ }
+ }
+ }
+ if (err) {
+ mlx4_err(mdev, "Auto sensing is not supported on this HCA. "
+ "Set only 'eth' or 'ib' for both ports "
+ "(should be the same)\n");
+ goto out;
+ }
- err = mlx4_check_port_params(mdev, types);
+ mlx4_do_sense_ports(mdev, new_types, types);
+
+ err = mlx4_check_port_params(mdev, new_types);
if (err)
goto out;
- for (i = 1; i <= mdev->caps.num_ports; i++)
- priv->port[i].tmp_type = 0;
+ /* We are about to apply the changes after the configuration
+ * was verified, no need to remember the temporary types
+ * any more */
+ for (i = 0; i < mdev->caps.num_ports; i++)
+ priv->port[i + 1].tmp_type = 0;
- err = mlx4_change_port_types(mdev, types);
+ err = mlx4_change_port_types(mdev, new_types);
out:
+ mlx4_start_sense(mdev);
mutex_unlock(&priv->port_mutex);
return err ? err : count;
}
((u64) (MLX4_CMPT_TYPE_EQ *
cmpt_entry_sz) << MLX4_CMPT_SHIFT),
cmpt_entry_sz,
- roundup_pow_of_two(MLX4_NUM_EQ +
- dev->caps.reserved_eqs),
- MLX4_NUM_EQ + dev->caps.reserved_eqs, 0, 0);
+ dev->caps.num_eqs, dev->caps.num_eqs, 0, 0);
if (err)
goto err_cq;
if (dev->flags & MLX4_FLAG_MSI_X) {
mlx4_warn(dev, "NOP command failed to generate MSI-X "
"interrupt IRQ %d).\n",
- priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
+ priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
mlx4_warn(dev, "Trying again without MSI-X.\n");
} else {
mlx4_err(dev, "NOP command failed to generate interrupt "
"(IRQ %d), aborting.\n",
- priv->eq_table.eq[MLX4_EQ_ASYNC].irq);
+ priv->eq_table.eq[dev->caps.num_comp_vectors].irq);
mlx4_err(dev, "BIOS or ACPI interrupt routing problem?\n");
}
static void mlx4_enable_msi_x(struct mlx4_dev *dev)
{
struct mlx4_priv *priv = mlx4_priv(dev);
- struct msix_entry entries[MLX4_NUM_EQ];
+ struct msix_entry *entries;
+ int nreq;
int err;
int i;
if (msi_x) {
- for (i = 0; i < MLX4_NUM_EQ; ++i)
+ nreq = min_t(int, dev->caps.num_eqs - dev->caps.reserved_eqs,
+ num_possible_cpus() + 1);
+ entries = kcalloc(nreq, sizeof *entries, GFP_KERNEL);
+ if (!entries)
+ goto no_msi;
+
+ for (i = 0; i < nreq; ++i)
entries[i].entry = i;
- err = pci_enable_msix(dev->pdev, entries, ARRAY_SIZE(entries));
+ retry:
+ err = pci_enable_msix(dev->pdev, entries, nreq);
if (err) {
- if (err > 0)
- mlx4_info(dev, "Only %d MSI-X vectors available, "
- "not using MSI-X\n", err);
+ /* Try again if at least 2 vectors are available */
+ if (err > 1) {
+ mlx4_info(dev, "Requested %d vectors, "
+ "but only %d MSI-X vectors available, "
+ "trying again\n", nreq, err);
+ nreq = err;
+ goto retry;
+ }
+
goto no_msi;
}
- for (i = 0; i < MLX4_NUM_EQ; ++i)
+ dev->caps.num_comp_vectors = nreq - 1;
+ for (i = 0; i < nreq; ++i)
priv->eq_table.eq[i].irq = entries[i].vector;
dev->flags |= MLX4_FLAG_MSI_X;
+
+ kfree(entries);
return;
}
no_msi:
- for (i = 0; i < MLX4_NUM_EQ; ++i)
+ dev->caps.num_comp_vectors = 1;
+
+ for (i = 0; i < 2; ++i)
priv->eq_table.eq[i].irq = dev->pdev->irq;
}
if (err)
goto err_cmd;
+ err = mlx4_alloc_eq_table(dev);
+ if (err)
+ goto err_close;
+
mlx4_enable_msi_x(dev);
err = mlx4_setup_hca(dev);
}
if (err)
- goto err_close;
+ goto err_free_eq;
for (port = 1; port <= dev->caps.num_ports; port++) {
err = mlx4_init_port_info(dev, port);
if (err)
goto err_port;
+ mlx4_sense_init(dev);
+ mlx4_start_sense(dev);
+
pci_set_drvdata(pdev, dev);
return 0;
mlx4_cleanup_pd_table(dev);
mlx4_cleanup_uar_table(dev);
+err_free_eq:
+ mlx4_free_eq_table(dev);
+
err_close:
if (dev->flags & MLX4_FLAG_MSI_X)
pci_disable_msix(pdev);
int p;
if (dev) {
+ mlx4_stop_sense(dev);
mlx4_unregister_device(dev);
for (p = 1; p <= dev->caps.num_ports; p++) {
iounmap(priv->kar);
mlx4_uar_free(dev, &priv->driver_uar);
mlx4_cleanup_uar_table(dev);
+ mlx4_free_eq_table(dev);
mlx4_close_hca(dev);
mlx4_cmd_cleanup(dev);
{ PCI_VDEVICE(MELLANOX, 0x673c) }, /* MT25408 "Hermon" QDR PCIe gen2 */
{ PCI_VDEVICE(MELLANOX, 0x6368) }, /* MT25408 "Hermon" EN 10GigE */
{ PCI_VDEVICE(MELLANOX, 0x6750) }, /* MT25408 "Hermon" EN 10GigE PCIe gen2 */
+ { PCI_VDEVICE(MELLANOX, 0x6372) }, /* MT25458 ConnectX EN 10GBASE-T 10GigE */
+ { PCI_VDEVICE(MELLANOX, 0x675a) }, /* MT25458 ConnectX EN 10GBASE-T+Gen2 10GigE */
{ 0, }
};
if (mlx4_verify_params())
return -EINVAL;
- ret = mlx4_catas_init();
- if (ret)
- return ret;
+ mlx4_catas_init();
+
+ mlx4_wq = create_singlethread_workqueue("mlx4");
+ if (!mlx4_wq)
+ return -ENOMEM;
ret = pci_register_driver(&mlx4_driver);
return ret < 0 ? ret : 0;
static void __exit mlx4_cleanup(void)
{
pci_unregister_driver(&mlx4_driver);
- mlx4_catas_cleanup();
+ destroy_workqueue(mlx4_wq);
}
module_init(mlx4_init);
projects / cascardo / linux.git / blobdiff