diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index fc4022884dbbe292e14fd9d5401b994c34a0c7db..e9a409d7f4e2bc32ff130aa0c022e9c51887692c 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -821,7 +821,7 @@ static int gid_table_setup_one(struct ib_device *ib_dev)
if (err)
return err;
- roce_rescan_device(ib_dev);
+ rdma_roce_rescan_device(ib_dev);
return err;
}
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index 39e3c1d02613d9084c2c5e6cc06137eda07ce91f..39e4acdb025e308269f6878731d5c2e3ea84cc3e 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -137,7 +137,6 @@ int ib_cache_gid_del_all_netdev_gids(struct ib_device *ib_dev, u8 port,
int roce_gid_mgmt_init(void);
void roce_gid_mgmt_cleanup(void);
-void roce_rescan_device(struct ib_device *ib_dev);
unsigned long roce_gid_type_mask_support(struct ib_device *ib_dev, u8 port);
int ib_cache_setup_one(struct ib_device *device);
diff --git a/drivers/infiniband/core/roce_gid_mgmt.c b/drivers/infiniband/core/roce_gid_mgmt.c
index ebfe45739ca7d8d3e988ca53c07d0a2dfcf95b03..5a52ec77940af799c682a7dbdf8ac6a4d9abf7f7 100644
--- a/drivers/infiniband/core/roce_gid_mgmt.c
+++ b/drivers/infiniband/core/roce_gid_mgmt.c
@@ -410,13 +410,18 @@ static void enum_all_gids_of_dev_cb(struct ib_device *ib_dev,
rtnl_unlock();
}
-/* This function will rescan all of the network devices in the system
- * and add their gids, as needed, to the relevant RoCE devices. */
-void roce_rescan_device(struct ib_device *ib_dev)
+/**
+ * rdma_roce_rescan_device - Rescan all of the network devices in the system
+ * and add their gids, as needed, to the relevant RoCE devices.
+ *
+ * @device: the rdma device
+ */
+void rdma_roce_rescan_device(struct ib_device *ib_dev)
{
ib_enum_roce_netdev(ib_dev, pass_all_filter, NULL,
enum_all_gids_of_dev_cb, NULL);
}
+EXPORT_SYMBOL(rdma_roce_rescan_device);
static void callback_for_addr_gid_device_scan(struct ib_device *device,
u8 port,
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 5fcb2ed94c11bc39b0a7127f853b9baf8a23882f..4fbbe4c7a99be46aac7d8538ba348770bc0eb11b 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -74,6 +74,23 @@ enum {
MLX5_ATOMIC_SIZE_QP_8BYTES = 1 << 3,
};
+static LIST_HEAD(mlx5_ib_unaffiliated_port_list);
+static LIST_HEAD(mlx5_ib_dev_list);
+/*
+ * This mutex should be held when accessing either of the above lists
+ */
+static DEFINE_MUTEX(mlx5_ib_multiport_mutex);
+
+struct mlx5_ib_dev *mlx5_ib_get_ibdev_from_mpi(struct mlx5_ib_multiport_info *mpi)
+{
+ struct mlx5_ib_dev *dev;
+
+ mutex_lock(&mlx5_ib_multiport_mutex);
+ dev = mpi->ibdev;
+ mutex_unlock(&mlx5_ib_multiport_mutex);
+ return dev;
+}
+
static enum rdma_link_layer
mlx5_port_type_cap_to_rdma_ll(int port_type_cap)
{
@@ -120,7 +137,9 @@ static int mlx5_netdev_event(struct notifier_block *this,
struct mlx5_ib_dev *ibdev;
ibdev = roce->dev;
- mdev = ibdev->mdev;
+ mdev = mlx5_ib_get_native_port_mdev(ibdev, port_num, NULL);
+ if (!mdev)
+ return NOTIFY_DONE;
switch (event) {
case NETDEV_REGISTER:
@@ -175,6 +194,7 @@ static int mlx5_netdev_event(struct notifier_block *this,
break;
}
done:
+ mlx5_ib_put_native_port_mdev(ibdev, port_num);
return NOTIFY_DONE;
}
@@ -183,10 +203,15 @@ static struct net_device *mlx5_ib_get_netdev(struct ib_device *device,
{
struct mlx5_ib_dev *ibdev = to_mdev(device);
struct net_device *ndev;
+ struct mlx5_core_dev *mdev;
+
+ mdev = mlx5_ib_get_native_port_mdev(ibdev, port_num, NULL);
+ if (!mdev)
+ return NULL;
- ndev = mlx5_lag_get_roce_netdev(ibdev->mdev);
+ ndev = mlx5_lag_get_roce_netdev(mdev);
if (ndev)
- return ndev;
+ goto out;
/* Ensure ndev does not disappear before we invoke dev_hold()
*/
@@ -196,9 +221,70 @@ static struct net_device *mlx5_ib_get_netdev(struct ib_device *device,
dev_hold(ndev);
read_unlock(&ibdev->roce[port_num - 1].netdev_lock);
+out:
+ mlx5_ib_put_native_port_mdev(ibdev, port_num);
return ndev;
}
+struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *ibdev,
+ u8 ib_port_num,
+ u8 *native_port_num)
+{
+ enum rdma_link_layer ll = mlx5_ib_port_link_layer(&ibdev->ib_dev,
+ ib_port_num);
+ struct mlx5_core_dev *mdev = NULL;
+ struct mlx5_ib_multiport_info *mpi;
+ struct mlx5_ib_port *port;
+
+ if (native_port_num)
+ *native_port_num = 1;
+
+ if (!mlx5_core_mp_enabled(ibdev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
+ return ibdev->mdev;
+
+ port = &ibdev->port[ib_port_num - 1];
+ if (!port)
+ return NULL;
+
+ spin_lock(&port->mp.mpi_lock);
+ mpi = ibdev->port[ib_port_num - 1].mp.mpi;
+ if (mpi && !mpi->unaffiliate) {
+ mdev = mpi->mdev;
+ /* If it's the master no need to refcount, it'll exist
+ * as long as the ib_dev exists.
+ */
+ if (!mpi->is_master)
+ mpi->mdev_refcnt++;
+ }
+ spin_unlock(&port->mp.mpi_lock);
+
+ return mdev;
+}
+
+void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *ibdev, u8 port_num)
+{
+ enum rdma_link_layer ll = mlx5_ib_port_link_layer(&ibdev->ib_dev,
+ port_num);
+ struct mlx5_ib_multiport_info *mpi;
+ struct mlx5_ib_port *port;
+
+ if (!mlx5_core_mp_enabled(ibdev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
+ return;
+
+ port = &ibdev->port[port_num - 1];
+
+ spin_lock(&port->mp.mpi_lock);
+ mpi = ibdev->port[port_num - 1].mp.mpi;
+ if (mpi->is_master)
+ goto out;
+
+ mpi->mdev_refcnt--;
+ if (mpi->unaffiliate)
+ complete(&mpi->unref_comp);
+out:
+ spin_unlock(&port->mp.mpi_lock);
+}
+
static int translate_eth_proto_oper(u32 eth_proto_oper, u8 *active_speed,
u8 *active_width)
{
@@ -3160,12 +3246,11 @@ static void get_ext_port_caps(struct mlx5_ib_dev *dev)
mlx5_query_ext_port_caps(dev, port);
}
-static int get_port_caps(struct mlx5_ib_dev *dev)
+static int get_port_caps(struct mlx5_ib_dev *dev, u8 port)
{
struct ib_device_attr *dprops = NULL;
struct ib_port_attr *pprops = NULL;
int err = -ENOMEM;
- int port;
struct ib_udata uhw = {.inlen = 0, .outlen = 0};
pprops = kmalloc(sizeof(*pprops), GFP_KERNEL);
@@ -3186,22 +3271,21 @@ static int get_port_caps(struct mlx5_ib_dev *dev)
goto out;
}
- for (port = 1; port <= dev->num_ports; port++) {
- memset(pprops, 0, sizeof(*pprops));
- err = mlx5_ib_query_port(&dev->ib_dev, port, pprops);
- if (err) {
- mlx5_ib_warn(dev, "query_port %d failed %d\n",
- port, err);
- break;
- }
- dev->mdev->port_caps[port - 1].pkey_table_len =
- dprops->max_pkeys;
- dev->mdev->port_caps[port - 1].gid_table_len =
- pprops->gid_tbl_len;
- mlx5_ib_dbg(dev, "pkey_table_len %d, gid_table_len %d\n",
- dprops->max_pkeys, pprops->gid_tbl_len);
+ memset(pprops, 0, sizeof(*pprops));
+ err = mlx5_ib_query_port(&dev->ib_dev, port, pprops);
+ if (err) {
+ mlx5_ib_warn(dev, "query_port %d failed %d\n",
+ port, err);
+ goto out;
}
+ dev->mdev->port_caps[port - 1].pkey_table_len =
+ dprops->max_pkeys;
+ dev->mdev->port_caps[port - 1].gid_table_len =
+ pprops->gid_tbl_len;
+ mlx5_ib_dbg(dev, "port %d: pkey_table_len %d, gid_table_len %d\n",
+ port, dprops->max_pkeys, pprops->gid_tbl_len);
+
out:
kfree(pprops);
kfree(dprops);
@@ -4054,8 +4138,203 @@ mlx5_ib_get_vector_affinity(struct ib_device *ibdev, int comp_vector)
return mlx5_get_vector_affinity(dev->mdev, comp_vector);
}
+/* The mlx5_ib_multiport_mutex should be held when calling this function */
+static void mlx5_ib_unbind_slave_port(struct mlx5_ib_dev *ibdev,
+ struct mlx5_ib_multiport_info *mpi)
+{
+ u8 port_num = mlx5_core_native_port_num(mpi->mdev) - 1;
+ struct mlx5_ib_port *port = &ibdev->port[port_num];
+ int comps;
+ int err;
+ int i;
+
+ spin_lock(&port->mp.mpi_lock);
+ if (!mpi->ibdev) {
+ spin_unlock(&port->mp.mpi_lock);
+ return;
+ }
+ mpi->ibdev = NULL;
+
+ spin_unlock(&port->mp.mpi_lock);
+ mlx5_remove_netdev_notifier(ibdev, port_num);
+ spin_lock(&port->mp.mpi_lock);
+
+ comps = mpi->mdev_refcnt;
+ if (comps) {
+ mpi->unaffiliate = true;
+ init_completion(&mpi->unref_comp);
+ spin_unlock(&port->mp.mpi_lock);
+
+ for (i = 0; i < comps; i++)
+ wait_for_completion(&mpi->unref_comp);
+
+ spin_lock(&port->mp.mpi_lock);
+ mpi->unaffiliate = false;
+ }
+
+ port->mp.mpi = NULL;
+
+ list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
+
+ spin_unlock(&port->mp.mpi_lock);
+
+ err = mlx5_nic_vport_unaffiliate_multiport(mpi->mdev);
+
+ mlx5_ib_dbg(ibdev, "unaffiliated port %d\n", port_num + 1);
+ /* Log an error, still needed to cleanup the pointers and add
+ * it back to the list.
+ */
+ if (err)
+ mlx5_ib_err(ibdev, "Failed to unaffiliate port %u\n",
+ port_num + 1);
+
+ ibdev->roce[port_num].last_port_state = IB_PORT_DOWN;
+}
+
+/* The mlx5_ib_multiport_mutex should be held when calling this function */
+static bool mlx5_ib_bind_slave_port(struct mlx5_ib_dev *ibdev,
+ struct mlx5_ib_multiport_info *mpi)
+{
+ u8 port_num = mlx5_core_native_port_num(mpi->mdev) - 1;
+ int err;
+
+ spin_lock(&ibdev->port[port_num].mp.mpi_lock);
+ if (ibdev->port[port_num].mp.mpi) {
+ mlx5_ib_warn(ibdev, "port %d already affiliated.\n",
+ port_num + 1);
+ spin_unlock(&ibdev->port[port_num].mp.mpi_lock);
+ return false;
+ }
+
+ ibdev->port[port_num].mp.mpi = mpi;
+ mpi->ibdev = ibdev;
+ spin_unlock(&ibdev->port[port_num].mp.mpi_lock);
+
+ err = mlx5_nic_vport_affiliate_multiport(ibdev->mdev, mpi->mdev);
+ if (err)
+ goto unbind;
+
+ err = get_port_caps(ibdev, mlx5_core_native_port_num(mpi->mdev));
+ if (err)
+ goto unbind;
+
+ err = mlx5_add_netdev_notifier(ibdev, port_num);
+ if (err) {
+ mlx5_ib_err(ibdev, "failed adding netdev notifier for port %u\n",
+ port_num + 1);
+ goto unbind;
+ }
+
+ return true;
+
+unbind:
+ mlx5_ib_unbind_slave_port(ibdev, mpi);
+ return false;
+}
+
+static int mlx5_ib_init_multiport_master(struct mlx5_ib_dev *dev)
+{
+ int port_num = mlx5_core_native_port_num(dev->mdev) - 1;
+ enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev,
+ port_num + 1);
+ struct mlx5_ib_multiport_info *mpi;
+ int err;
+ int i;
+
+ if (!mlx5_core_is_mp_master(dev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
+ return 0;
+
+ err = mlx5_query_nic_vport_system_image_guid(dev->mdev,
+ &dev->sys_image_guid);
+ if (err)
+ return err;
+
+ err = mlx5_nic_vport_enable_roce(dev->mdev);
+ if (err)
+ return err;
+
+ mutex_lock(&mlx5_ib_multiport_mutex);
+ for (i = 0; i < dev->num_ports; i++) {
+ bool bound = false;
+
+ /* build a stub multiport info struct for the native port. */
+ if (i == port_num) {
+ mpi = kzalloc(sizeof(*mpi), GFP_KERNEL);
+ if (!mpi) {
+ mutex_unlock(&mlx5_ib_multiport_mutex);
+ mlx5_nic_vport_disable_roce(dev->mdev);
+ return -ENOMEM;
+ }
+
+ mpi->is_master = true;
+ mpi->mdev = dev->mdev;
+ mpi->sys_image_guid = dev->sys_image_guid;
+ dev->port[i].mp.mpi = mpi;
+ mpi->ibdev = dev;
+ mpi = NULL;
+ continue;
+ }
+
+ list_for_each_entry(mpi, &mlx5_ib_unaffiliated_port_list,
+ list) {
+ if (dev->sys_image_guid == mpi->sys_image_guid &&
+ (mlx5_core_native_port_num(mpi->mdev) - 1) == i) {
+ bound = mlx5_ib_bind_slave_port(dev, mpi);
+ }
+
+ if (bound) {
+ dev_dbg(&mpi->mdev->pdev->dev, "removing port from unaffiliated list.\n");
+ mlx5_ib_dbg(dev, "port %d bound\n", i + 1);
+ list_del(&mpi->list);
+ break;
+ }
+ }
+ if (!bound) {
+ get_port_caps(dev, i + 1);
+ mlx5_ib_dbg(dev, "no free port found for port %d\n",
+ i + 1);
+ }
+ }
+
+ list_add_tail(&dev->ib_dev_list, &mlx5_ib_dev_list);
+ mutex_unlock(&mlx5_ib_multiport_mutex);
+ return err;
+}
+
+static void mlx5_ib_cleanup_multiport_master(struct mlx5_ib_dev *dev)
+{
+ int port_num = mlx5_core_native_port_num(dev->mdev) - 1;
+ enum rdma_link_layer ll = mlx5_ib_port_link_layer(&dev->ib_dev,
+ port_num + 1);
+ int i;
+
+ if (!mlx5_core_is_mp_master(dev->mdev) || ll != IB_LINK_LAYER_ETHERNET)
+ return;
+
+ mutex_lock(&mlx5_ib_multiport_mutex);
+ for (i = 0; i < dev->num_ports; i++) {
+ if (dev->port[i].mp.mpi) {
+ /* Destroy the native port stub */
+ if (i == port_num) {
+ kfree(dev->port[i].mp.mpi);
+ dev->port[i].mp.mpi = NULL;
+ } else {
+ mlx5_ib_dbg(dev, "unbinding port_num: %d\n", i + 1);
+ mlx5_ib_unbind_slave_port(dev, dev->port[i].mp.mpi);
+ }
+ }
+ }
+
+ mlx5_ib_dbg(dev, "removing from devlist\n");
+ list_del(&dev->ib_dev_list);
+ mutex_unlock(&mlx5_ib_multiport_mutex);
+
+ mlx5_nic_vport_disable_roce(dev->mdev);
+}
+
static void mlx5_ib_stage_init_cleanup(struct mlx5_ib_dev *dev)
{
+ mlx5_ib_cleanup_multiport_master(dev);
#ifdef CONFIG_INFINIBAND_ON_DEMAND_PAGING
cleanup_srcu_struct(&dev->mr_srcu);
#endif
@@ -4067,16 +4346,36 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
struct mlx5_core_dev *mdev = dev->mdev;
const char *name;
int err;
+ int i;
dev->port = kcalloc(dev->num_ports, sizeof(*dev->port),
GFP_KERNEL);
if (!dev->port)
return -ENOMEM;
- err = get_port_caps(dev);
+ for (i = 0; i < dev->num_ports; i++) {
+ spin_lock_init(&dev->port[i].mp.mpi_lock);
+ rwlock_init(&dev->roce[i].netdev_lock);
+ }
+
+ err = mlx5_ib_init_multiport_master(dev);
if (err)
goto err_free_port;
+ if (!mlx5_core_mp_enabled(mdev)) {
+ int i;
+
+ for (i = 1; i <= dev->num_ports; i++) {
+ err = get_port_caps(dev, i);
+ if (err)
+ break;
+ }
+ } else {
+ err = get_port_caps(dev, mlx5_core_native_port_num(mdev));
+ }
+ if (err)
+ goto err_mp;
+
if (mlx5_use_mad_ifc(dev))
get_ext_port_caps(dev);
@@ -4106,6 +4405,8 @@ static int mlx5_ib_stage_init_init(struct mlx5_ib_dev *dev)
#endif
return 0;
+err_mp:
+ mlx5_ib_cleanup_multiport_master(dev);
err_free_port:
kfree(dev->port);
@@ -4252,16 +4553,16 @@ static int mlx5_ib_stage_roce_init(struct mlx5_ib_dev *dev)
struct mlx5_core_dev *mdev = dev->mdev;
enum rdma_link_layer ll;
int port_type_cap;
- u8 port_num = 0;
+ u8 port_num;
int err;
int i;
+ port_num = mlx5_core_native_port_num(dev->mdev) - 1;
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
if (ll == IB_LINK_LAYER_ETHERNET) {
for (i = 0; i < dev->num_ports; i++) {
- rwlock_init(&dev->roce[i].netdev_lock);
dev->roce[i].dev = dev;
dev->roce[i].native_port_num = i + 1;
dev->roce[i].last_port_state = IB_PORT_DOWN;
@@ -4292,8 +4593,9 @@ static void mlx5_ib_stage_roce_cleanup(struct mlx5_ib_dev *dev)
struct mlx5_core_dev *mdev = dev->mdev;
enum rdma_link_layer ll;
int port_type_cap;
- u8 port_num = 0;
+ u8 port_num;
+ port_num = mlx5_core_native_port_num(dev->mdev) - 1;
port_type_cap = MLX5_CAP_GEN(mdev, port_type);
ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
@@ -4443,6 +4745,8 @@ static void __mlx5_ib_remove(struct mlx5_ib_dev *dev,
ib_dealloc_device((struct ib_device *)dev);
}
+static void *mlx5_ib_add_slave_port(struct mlx5_core_dev *mdev, u8 port_num);
+
static void *__mlx5_ib_add(struct mlx5_core_dev *mdev,
const struct mlx5_ib_profile *profile)
{
@@ -4457,7 +4761,8 @@ static void *__mlx5_ib_add(struct mlx5_core_dev *mdev,
return NULL;
dev->mdev = mdev;
- dev->num_ports = MLX5_CAP_GEN(mdev, num_ports);
+ dev->num_ports = max(MLX5_CAP_GEN(mdev, num_ports),
+ MLX5_CAP_GEN(mdev, num_vhca_ports));
for (i = 0; i < MLX5_IB_STAGE_MAX; i++) {
if (profile->stage[i].init) {
@@ -4520,15 +4825,81 @@ static const struct mlx5_ib_profile pf_profile = {
NULL),
};
+static void *mlx5_ib_add_slave_port(struct mlx5_core_dev *mdev, u8 port_num)
+{
+ struct mlx5_ib_multiport_info *mpi;
+ struct mlx5_ib_dev *dev;
+ bool bound = false;
+ int err;
+
+ mpi = kzalloc(sizeof(*mpi), GFP_KERNEL);
+ if (!mpi)
+ return NULL;
+
+ mpi->mdev = mdev;
+
+ err = mlx5_query_nic_vport_system_image_guid(mdev,
+ &mpi->sys_image_guid);
+ if (err) {
+ kfree(mpi);
+ return NULL;
+ }
+
+ mutex_lock(&mlx5_ib_multiport_mutex);
+ list_for_each_entry(dev, &mlx5_ib_dev_list, ib_dev_list) {
+ if (dev->sys_image_guid == mpi->sys_image_guid)
+ bound = mlx5_ib_bind_slave_port(dev, mpi);
+
+ if (bound) {
+ rdma_roce_rescan_device(&dev->ib_dev);
+ break;
+ }
+ }
+
+ if (!bound) {
+ list_add_tail(&mpi->list, &mlx5_ib_unaffiliated_port_list);
+ dev_dbg(&mdev->pdev->dev, "no suitable IB device found to bind to, added to unaffiliated list.\n");
+ } else {
+ mlx5_ib_dbg(dev, "bound port %u\n", port_num + 1);
+ }
+ mutex_unlock(&mlx5_ib_multiport_mutex);
+
+ return mpi;
+}
+
static void *mlx5_ib_add(struct mlx5_core_dev *mdev)
{
+ enum rdma_link_layer ll;
+ int port_type_cap;
+
+ port_type_cap = MLX5_CAP_GEN(mdev, port_type);
+ ll = mlx5_port_type_cap_to_rdma_ll(port_type_cap);
+
+ if (mlx5_core_is_mp_slave(mdev) && ll == IB_LINK_LAYER_ETHERNET) {
+ u8 port_num = mlx5_core_native_port_num(mdev) - 1;
+
+ return mlx5_ib_add_slave_port(mdev, port_num);
+ }
+
return __mlx5_ib_add(mdev, &pf_profile);
}
static void mlx5_ib_remove(struct mlx5_core_dev *mdev, void *context)
{
- struct mlx5_ib_dev *dev = context;
+ struct mlx5_ib_multiport_info *mpi;
+ struct mlx5_ib_dev *dev;
+
+ if (mlx5_core_is_mp_slave(mdev)) {
+ mpi = context;
+ mutex_lock(&mlx5_ib_multiport_mutex);
+ if (mpi->ibdev)
+ mlx5_ib_unbind_slave_port(mpi->ibdev, mpi);
+ list_del(&mpi->list);
+ mutex_unlock(&mlx5_ib_multiport_mutex);
+ return;
+ }
+ dev = context;
__mlx5_ib_remove(dev, dev->profile, MLX5_IB_STAGE_MAX);
}
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 6106dde351446b3a9cf75d52f164d3a3cd3f865f..a70a4c02e3969b3e5f0b206032c55e7d2ca8d4c2 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -654,8 +654,17 @@ struct mlx5_ib_counters {
u16 set_id;
};
+struct mlx5_ib_multiport_info;
+
+struct mlx5_ib_multiport {
+ struct mlx5_ib_multiport_info *mpi;
+ /* To be held when accessing the multiport info */
+ spinlock_t mpi_lock;
+};
+
struct mlx5_ib_port {
struct mlx5_ib_counters cnts;
+ struct mlx5_ib_multiport mp;
};
struct mlx5_roce {
@@ -756,6 +765,17 @@ struct mlx5_ib_profile {
struct mlx5_ib_stage stage[MLX5_IB_STAGE_MAX];
};
+struct mlx5_ib_multiport_info {
+ struct list_head list;
+ struct mlx5_ib_dev *ibdev;
+ struct mlx5_core_dev *mdev;
+ struct completion unref_comp;
+ u64 sys_image_guid;
+ u32 mdev_refcnt;
+ bool is_master;
+ bool unaffiliate;
+};
+
struct mlx5_ib_dev {
struct ib_device ib_dev;
struct mlx5_core_dev *mdev;
@@ -800,6 +820,8 @@ struct mlx5_ib_dev {
struct mutex lb_mutex;
u32 user_td;
u8 umr_fence;
+ struct list_head ib_dev_list;
+ u64 sys_image_guid;
};
static inline struct mlx5_ib_cq *to_mibcq(struct mlx5_core_cq *mcq)
@@ -1071,6 +1093,12 @@ int mlx5_ib_generate_wc(struct ib_cq *ibcq, struct ib_wc *wc);
void mlx5_ib_free_bfreg(struct mlx5_ib_dev *dev, struct mlx5_bfreg_info *bfregi,
int bfregn);
+struct mlx5_ib_dev *mlx5_ib_get_ibdev_from_mpi(struct mlx5_ib_multiport_info *mpi);
+struct mlx5_core_dev *mlx5_ib_get_native_port_mdev(struct mlx5_ib_dev *dev,
+ u8 ib_port_num,
+ u8 *native_port_num);
+void mlx5_ib_put_native_port_mdev(struct mlx5_ib_dev *dev,
+ u8 port_num);
static inline void init_query_mad(struct ib_smp *mad)
{
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c
index c4392f741c5fe1466699b71f6d8567c81790f2cc..c841b03c3e48090f64a2263043e7d10bca9be7a9 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/conn.c
@@ -688,7 +688,7 @@ static inline int mlx5_fpga_conn_init_qp(struct mlx5_fpga_conn *conn)
MLX5_SET(qpc, qpc, st, MLX5_QP_ST_RC);
MLX5_SET(qpc, qpc, pm_state, MLX5_QP_PM_MIGRATED);
MLX5_SET(qpc, qpc, primary_address_path.pkey_index, MLX5_FPGA_PKEY_INDEX);
- MLX5_SET(qpc, qpc, primary_address_path.port, MLX5_FPGA_PORT_NUM);
+ MLX5_SET(qpc, qpc, primary_address_path.vhca_port_num, MLX5_FPGA_PORT_NUM);
MLX5_SET(qpc, qpc, pd, conn->fdev->conn_res.pdn);
MLX5_SET(qpc, qpc, cqn_snd, conn->cq.mcq.cqn);
MLX5_SET(qpc, qpc, cqn_rcv, conn->cq.mcq.cqn);
@@ -727,7 +727,7 @@ static inline int mlx5_fpga_conn_rtr_qp(struct mlx5_fpga_conn *conn)
MLX5_SET(qpc, qpc, next_rcv_psn,
MLX5_GET(fpga_qpc, conn->fpga_qpc, next_send_psn));
MLX5_SET(qpc, qpc, primary_address_path.pkey_index, MLX5_FPGA_PKEY_INDEX);
- MLX5_SET(qpc, qpc, primary_address_path.port, MLX5_FPGA_PORT_NUM);
+ MLX5_SET(qpc, qpc, primary_address_path.vhca_port_num, MLX5_FPGA_PORT_NUM);
ether_addr_copy(MLX5_ADDR_OF(qpc, qpc, primary_address_path.rmac_47_32),
MLX5_ADDR_OF(fpga_qpc, conn->fpga_qpc, fpga_mac_47_32));
MLX5_SET(qpc, qpc, primary_address_path.udp_sport,
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
index d2a66dc4adc6d2933cfbc60c28cd49c67716a010..261b95d014a05df62d2eb457f320c23fa8e977da 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ipoib/ipoib.c
@@ -187,7 +187,7 @@ int mlx5i_create_underlay_qp(struct mlx5_core_dev *mdev, struct mlx5_core_qp *qp
MLX5_QP_ENHANCED_ULP_STATELESS_MODE);
addr_path = MLX5_ADDR_OF(qpc, qpc, primary_address_path);
- MLX5_SET(ads, addr_path, port, 1);
+ MLX5_SET(ads, addr_path, vhca_port_num, 1);
MLX5_SET(ads, addr_path, grh, 1);
ret = mlx5_core_create_qp(mdev, qp, in, inlen);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/vport.c b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
index 916523103f16e439e868a8656c54cc820a96f554..9cb939b6a859e39f3a2933a0dca213da966e5284 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/vport.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/vport.c
@@ -1121,3 +1121,61 @@ int mlx5_core_modify_hca_vport_context(struct mlx5_core_dev *dev,
return err;
}
EXPORT_SYMBOL_GPL(mlx5_core_modify_hca_vport_context);
+
+int mlx5_nic_vport_affiliate_multiport(struct mlx5_core_dev *master_mdev,
+ struct mlx5_core_dev *port_mdev)
+{
+ int inlen = MLX5_ST_SZ_BYTES(modify_nic_vport_context_in);
+ void *in;
+ int err;
+
+ in = kvzalloc(inlen, GFP_KERNEL);
+ if (!in)
+ return -ENOMEM;
+
+ err = mlx5_nic_vport_enable_roce(port_mdev);
+ if (err)
+ goto free;
+
+ MLX5_SET(modify_nic_vport_context_in, in, field_select.affiliation, 1);
+ MLX5_SET(modify_nic_vport_context_in, in,
+ nic_vport_context.affiliated_vhca_id,
+ MLX5_CAP_GEN(master_mdev, vhca_id));
+ MLX5_SET(modify_nic_vport_context_in, in,
+ nic_vport_context.affiliation_criteria,
+ MLX5_CAP_GEN(port_mdev, affiliate_nic_vport_criteria));
+
+ err = mlx5_modify_nic_vport_context(port_mdev, in, inlen);
+ if (err)
+ mlx5_nic_vport_disable_roce(port_mdev);
+
+free:
+ kvfree(in);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_nic_vport_affiliate_multiport);
+
+int mlx5_nic_vport_unaffiliate_multiport(struct mlx5_core_dev *port_mdev)
+{
+ int inlen = MLX5_ST_SZ_BYTES(modify_nic_vport_context_in);
+ void *in;
+ int err;
+
+ in = kvzalloc(inlen, GFP_KERNEL);
+ if (!in)
+ return -ENOMEM;
+
+ MLX5_SET(modify_nic_vport_context_in, in, field_select.affiliation, 1);
+ MLX5_SET(modify_nic_vport_context_in, in,
+ nic_vport_context.affiliated_vhca_id, 0);
+ MLX5_SET(modify_nic_vport_context_in, in,
+ nic_vport_context.affiliation_criteria, 0);
+
+ err = mlx5_modify_nic_vport_context(port_mdev, in, inlen);
+ if (!err)
+ mlx5_nic_vport_disable_roce(port_mdev);
+
+ kvfree(in);
+ return err;
+}
+EXPORT_SYMBOL_GPL(mlx5_nic_vport_unaffiliate_multiport);
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 28733529f6ff95a223b2ed3edb1ac75192fe8046..d5c787519e06d0938fc9566d340c0e48c5674222 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -1234,9 +1234,29 @@ static inline bool mlx5_rl_is_supported(struct mlx5_core_dev *dev)
return !!(dev->priv.rl_table.max_size);
}
+static inline int mlx5_core_is_mp_slave(struct mlx5_core_dev *dev)
+{
+ return MLX5_CAP_GEN(dev, affiliate_nic_vport_criteria) &&
+ MLX5_CAP_GEN(dev, num_vhca_ports) <= 1;
+}
+
+static inline int mlx5_core_is_mp_master(struct mlx5_core_dev *dev)
+{
+ return MLX5_CAP_GEN(dev, num_vhca_ports) > 1;
+}
+
+static inline int mlx5_core_mp_enabled(struct mlx5_core_dev *dev)
+{
+ return mlx5_core_is_mp_slave(dev) ||
+ mlx5_core_is_mp_master(dev);
+}
+
static inline int mlx5_core_native_port_num(struct mlx5_core_dev *dev)
{
- return 1;
+ if (!mlx5_core_mp_enabled(dev))
+ return 1;
+
+ return MLX5_CAP_GEN(dev, native_port_num);
}
enum {
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index b1c81d7a86cbf353833202c0577c1e52440bea59..7e88c8e7f3742c330c07f2072d0befdc804458e3 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -502,7 +502,7 @@ struct mlx5_ifc_ads_bits {
u8 dei_cfi[0x1];
u8 eth_prio[0x3];
u8 sl[0x4];
- u8 port[0x8];
+ u8 vhca_port_num[0x8];
u8 rmac_47_32[0x10];
u8 rmac_31_0[0x20];
@@ -794,7 +794,10 @@ enum {
};
struct mlx5_ifc_cmd_hca_cap_bits {
- u8 reserved_at_0[0x80];
+ u8 reserved_at_0[0x30];
+ u8 vhca_id[0x10];
+
+ u8 reserved_at_40[0x40];
u8 log_max_srq_sz[0x8];
u8 log_max_qp_sz[0x8];
@@ -1066,8 +1069,11 @@ struct mlx5_ifc_cmd_hca_cap_bits {
u8 reserved_at_5f8[0x3];
u8 log_max_xrq[0x5];
- u8 reserved_at_600[0x1e];
- u8 sw_owner_id;
+ u8 affiliate_nic_vport_criteria[0x8];
+ u8 native_port_num[0x8];
+ u8 num_vhca_ports[0x8];
+ u8 reserved_at_618[0x6];
+ u8 sw_owner_id[0x1];
u8 reserved_at_61f[0x1e1];
};
@@ -2617,7 +2623,12 @@ struct mlx5_ifc_nic_vport_context_bits {
u8 event_on_mc_address_change[0x1];
u8 event_on_uc_address_change[0x1];
- u8 reserved_at_40[0xf0];
+ u8 reserved_at_40[0xc];
+
+ u8 affiliation_criteria[0x4];
+ u8 affiliated_vhca_id[0x10];
+
+ u8 reserved_at_60[0xd0];
u8 mtu[0x10];
@@ -3260,7 +3271,8 @@ struct mlx5_ifc_set_roce_address_in_bits {
u8 op_mod[0x10];
u8 roce_address_index[0x10];
- u8 reserved_at_50[0x10];
+ u8 reserved_at_50[0xc];
+ u8 vhca_port_num[0x4];
u8 reserved_at_60[0x20];
@@ -3880,7 +3892,8 @@ struct mlx5_ifc_query_roce_address_in_bits {
u8 op_mod[0x10];
u8 roce_address_index[0x10];
- u8 reserved_at_50[0x10];
+ u8 reserved_at_50[0xc];
+ u8 vhca_port_num[0x4];
u8 reserved_at_60[0x20];
};
@@ -5312,7 +5325,9 @@ struct mlx5_ifc_modify_nic_vport_context_out_bits {
};
struct mlx5_ifc_modify_nic_vport_field_select_bits {
- u8 reserved_at_0[0x14];
+ u8 reserved_at_0[0x12];
+ u8 affiliation[0x1];
+ u8 reserved_at_e[0x1];
u8 disable_uc_local_lb[0x1];
u8 disable_mc_local_lb[0x1];
u8 node_guid[0x1];
diff --git a/include/linux/mlx5/vport.h b/include/linux/mlx5/vport.h
index aaa0bb9e7655c454877d283222312422a6a30c3f..64e193e8739471b1f003234bf4501adab7d61ede 100644
--- a/include/linux/mlx5/vport.h
+++ b/include/linux/mlx5/vport.h
@@ -116,4 +116,8 @@ int mlx5_core_modify_hca_vport_context(struct mlx5_core_dev *dev,
struct mlx5_hca_vport_context *req);
int mlx5_nic_vport_update_local_lb(struct mlx5_core_dev *mdev, bool enable);
int mlx5_nic_vport_query_local_lb(struct mlx5_core_dev *mdev, bool *status);
+
+int mlx5_nic_vport_affiliate_multiport(struct mlx5_core_dev *master_mdev,
+ struct mlx5_core_dev *port_mdev);
+int mlx5_nic_vport_unaffiliate_multiport(struct mlx5_core_dev *port_mdev);
#endif /* __MLX5_VPORT_H__ */
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index e44a8adac67771c2933cc83668d941da5c2c3200..f25c03687ee9ffddbacc1c76a5eabf6042125ec5 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -3850,4 +3850,12 @@ ib_get_vector_affinity(struct ib_device *device, int comp_vector)
}
+/**
+ * rdma_roce_rescan_device - Rescan all of the network devices in the system
+ * and add their gids, as needed, to the relevant RoCE devices.
+ *
+ * @device: the rdma device
+ */
+void rdma_roce_rescan_device(struct ib_device *ibdev);
+
#endif /* IB_VERBS_H */