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path: root/drivers/infiniband/hw/mlx4/main.c
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Diffstat (limited to 'drivers/infiniband/hw/mlx4/main.c')
-rw-r--r--drivers/infiniband/hw/mlx4/main.c109
1 files changed, 85 insertions, 24 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index f9c12e92fdd..199c7896f08 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -48,6 +48,7 @@
#include <linux/mlx4/driver.h>
#include <linux/mlx4/cmd.h>
+#include <linux/mlx4/qp.h>
#include "mlx4_ib.h"
#include "user.h"
@@ -1546,7 +1547,7 @@ static int mlx4_ib_addr_event(int event, struct net_device *event_netdev,
iboe = &ibdev->iboe;
spin_lock(&iboe->lock);
- for (port = 1; port <= MLX4_MAX_PORTS; ++port)
+ for (port = 1; port <= ibdev->dev->caps.num_ports; ++port)
if ((netif_is_bond_master(real_dev) &&
(real_dev == iboe->masters[port - 1])) ||
(!netif_is_bond_master(real_dev) &&
@@ -1569,14 +1570,14 @@ static u8 mlx4_ib_get_dev_port(struct net_device *dev,
iboe = &ibdev->iboe;
- for (port = 1; port <= MLX4_MAX_PORTS; ++port)
+ for (port = 1; port <= ibdev->dev->caps.num_ports; ++port)
if ((netif_is_bond_master(real_dev) &&
(real_dev == iboe->masters[port - 1])) ||
(!netif_is_bond_master(real_dev) &&
(real_dev == iboe->netdevs[port - 1])))
break;
- if ((port == 0) || (port > MLX4_MAX_PORTS))
+ if ((port == 0) || (port > ibdev->dev->caps.num_ports))
return 0;
else
return port;
@@ -1614,6 +1615,53 @@ static int mlx4_ib_inet6_event(struct notifier_block *this, unsigned long event,
}
#endif
+#define MLX4_IB_INVALID_MAC ((u64)-1)
+static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
+ struct net_device *dev,
+ int port)
+{
+ u64 new_smac = 0;
+ u64 release_mac = MLX4_IB_INVALID_MAC;
+ struct mlx4_ib_qp *qp;
+
+ read_lock(&dev_base_lock);
+ new_smac = mlx4_mac_to_u64(dev->dev_addr);
+ read_unlock(&dev_base_lock);
+
+ mutex_lock(&ibdev->qp1_proxy_lock[port - 1]);
+ qp = ibdev->qp1_proxy[port - 1];
+ if (qp) {
+ int new_smac_index;
+ u64 old_smac = qp->pri.smac;
+ struct mlx4_update_qp_params update_params;
+
+ if (new_smac == old_smac)
+ goto unlock;
+
+ new_smac_index = mlx4_register_mac(ibdev->dev, port, new_smac);
+
+ if (new_smac_index < 0)
+ goto unlock;
+
+ update_params.smac_index = new_smac_index;
+ if (mlx4_update_qp(ibdev->dev, &qp->mqp, MLX4_UPDATE_QP_SMAC,
+ &update_params)) {
+ release_mac = new_smac;
+ goto unlock;
+ }
+
+ qp->pri.smac = new_smac;
+ qp->pri.smac_index = new_smac_index;
+
+ release_mac = old_smac;
+ }
+
+unlock:
+ mutex_unlock(&ibdev->qp1_proxy_lock[port - 1]);
+ if (release_mac != MLX4_IB_INVALID_MAC)
+ mlx4_unregister_mac(ibdev->dev, port, release_mac);
+}
+
static void mlx4_ib_get_dev_addr(struct net_device *dev,
struct mlx4_ib_dev *ibdev, u8 port)
{
@@ -1626,7 +1674,7 @@ static void mlx4_ib_get_dev_addr(struct net_device *dev,
union ib_gid gid;
- if ((port == 0) || (port > MLX4_MAX_PORTS))
+ if ((port == 0) || (port > ibdev->dev->caps.num_ports))
return;
/* IPv4 gids */
@@ -1689,9 +1737,13 @@ static int mlx4_ib_init_gid_table(struct mlx4_ib_dev *ibdev)
return 0;
}
-static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev)
+static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
+ struct net_device *dev,
+ unsigned long event)
+
{
struct mlx4_ib_iboe *iboe;
+ int update_qps_port = -1;
int port;
iboe = &ibdev->iboe;
@@ -1719,6 +1771,11 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev)
}
curr_master = iboe->masters[port - 1];
+ if (dev == iboe->netdevs[port - 1] &&
+ (event == NETDEV_CHANGEADDR || event == NETDEV_REGISTER ||
+ event == NETDEV_UP || event == NETDEV_CHANGE))
+ update_qps_port = port;
+
if (curr_netdev) {
port_state = (netif_running(curr_netdev) && netif_carrier_ok(curr_netdev)) ?
IB_PORT_ACTIVE : IB_PORT_DOWN;
@@ -1752,6 +1809,9 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev)
}
spin_unlock(&iboe->lock);
+
+ if (update_qps_port > 0)
+ mlx4_ib_update_qps(ibdev, dev, update_qps_port);
}
static int mlx4_ib_netdev_event(struct notifier_block *this,
@@ -1764,7 +1824,7 @@ static int mlx4_ib_netdev_event(struct notifier_block *this,
return NOTIFY_DONE;
ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
- mlx4_ib_scan_netdevs(ibdev);
+ mlx4_ib_scan_netdevs(ibdev, dev, event);
return NOTIFY_DONE;
}
@@ -1803,7 +1863,7 @@ static void init_pkeys(struct mlx4_ib_dev *ibdev)
static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
{
- char name[32];
+ char name[80];
int eq_per_port = 0;
int added_eqs = 0;
int total_eqs = 0;
@@ -1833,8 +1893,8 @@ static void mlx4_ib_alloc_eqs(struct mlx4_dev *dev, struct mlx4_ib_dev *ibdev)
eq = 0;
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB) {
for (j = 0; j < eq_per_port; j++) {
- sprintf(name, "mlx4-ib-%d-%d@%s",
- i, j, dev->pdev->bus->name);
+ snprintf(name, sizeof(name), "mlx4-ib-%d-%d@%s",
+ i, j, dev->pdev->bus->name);
/* Set IRQ for specific name (per ring) */
if (mlx4_assign_eq(dev, name, NULL,
&ibdev->eq_table[eq])) {
@@ -1888,14 +1948,6 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
pr_info_once("%s", mlx4_ib_version);
- mlx4_foreach_non_ib_transport_port(i, dev)
- num_ports++;
-
- if (mlx4_is_mfunc(dev) && num_ports) {
- dev_err(&dev->pdev->dev, "RoCE is not supported over SRIOV as yet\n");
- return NULL;
- }
-
num_ports = 0;
mlx4_foreach_ib_transport_port(i, dev)
num_ports++;
@@ -2051,13 +2103,15 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
goto err_map;
for (i = 0; i < ibdev->num_ports; ++i) {
+ mutex_init(&ibdev->qp1_proxy_lock[i]);
if (mlx4_ib_port_link_layer(&ibdev->ib_dev, i + 1) ==
IB_LINK_LAYER_ETHERNET) {
err = mlx4_counter_alloc(ibdev->dev, &ibdev->counters[i]);
if (err)
ibdev->counters[i] = -1;
- } else
- ibdev->counters[i] = -1;
+ } else {
+ ibdev->counters[i] = -1;
+ }
}
mlx4_foreach_port(i, dev, MLX4_PORT_TYPE_IB)
@@ -2133,7 +2187,7 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
for (i = 1 ; i <= ibdev->num_ports ; ++i)
reset_gid_table(ibdev, i);
rtnl_lock();
- mlx4_ib_scan_netdevs(ibdev);
+ mlx4_ib_scan_netdevs(ibdev, NULL, 0);
rtnl_unlock();
mlx4_ib_init_gid_table(ibdev);
}
@@ -2331,17 +2385,24 @@ static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
struct mlx4_dev *dev = ibdev->dev;
int i;
unsigned long flags;
+ struct mlx4_active_ports actv_ports;
+ unsigned int ports;
+ unsigned int first_port;
if (!mlx4_is_master(dev))
return;
- dm = kcalloc(dev->caps.num_ports, sizeof *dm, GFP_ATOMIC);
+ actv_ports = mlx4_get_active_ports(dev, slave);
+ ports = bitmap_weight(actv_ports.ports, dev->caps.num_ports);
+ first_port = find_first_bit(actv_ports.ports, dev->caps.num_ports);
+
+ dm = kcalloc(ports, sizeof(*dm), GFP_ATOMIC);
if (!dm) {
pr_err("failed to allocate memory for tunneling qp update\n");
goto out;
}
- for (i = 0; i < dev->caps.num_ports; i++) {
+ for (i = 0; i < ports; i++) {
dm[i] = kmalloc(sizeof (struct mlx4_ib_demux_work), GFP_ATOMIC);
if (!dm[i]) {
pr_err("failed to allocate memory for tunneling qp update work struct\n");
@@ -2353,9 +2414,9 @@ static void do_slave_init(struct mlx4_ib_dev *ibdev, int slave, int do_init)
}
}
/* initialize or tear down tunnel QPs for the slave */
- for (i = 0; i < dev->caps.num_ports; i++) {
+ for (i = 0; i < ports; i++) {
INIT_WORK(&dm[i]->work, mlx4_ib_tunnels_update_work);
- dm[i]->port = i + 1;
+ dm[i]->port = first_port + i + 1;
dm[i]->slave = slave;
dm[i]->do_init = do_init;
dm[i]->dev = ibdev;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-04-06 20:07:54 +0000