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Date: Tue, 18 Sep 2018 16:03:44 +0300
From: Jan Dakinevich <jan.dakinevich@...tuozzo.com>
To: Doug Ledford <dledford@...hat.com>, Jason Gunthorpe <jgg@...pe.ca>,
Yishai Hadas <yishaih@...lanox.com>,
Leon Romanovsky <leon@...nel.org>,
Parav Pandit <parav@...lanox.com>,
Mark Bloch <markb@...lanox.com>,
Daniel Jurgens <danielj@...lanox.com>,
Kees Cook <keescook@...omium.org>,
Kamal Heib <kamalheib1@...il.com>,
Bart Van Assche <bvanassche@....org>,
linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Cc: Denis Lunev <den@...tuozzo.com>,
Konstantin Khorenko <khorenko@...tuozzo.com>,
Jan Dakinevich <jan.dakinevich@...tuozzo.com>
Subject: [PATCH 2/4] IB/mlx4: move iboe field aside from mlx4_ib_dev
This is the 1st patch of 3 of the work for decreasing size
of mlx4_ib_dev.
The field takes about 8K and could be safely allocated with kvzalloc.
Signed-off-by: Jan Dakinevich <jan.dakinevich@...tuozzo.com>
---
drivers/infiniband/hw/mlx4/main.c | 65 ++++++++++++++++++++++--------------
drivers/infiniband/hw/mlx4/mlx4_ib.h | 3 +-
drivers/infiniband/hw/mlx4/qp.c | 4 +--
3 files changed, 44 insertions(+), 28 deletions(-)
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 0bbeaaa..1e3bb67 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -249,7 +249,7 @@ static int mlx4_ib_update_gids(struct gid_entry *gids,
static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context)
{
struct mlx4_ib_dev *ibdev = to_mdev(attr->device);
- struct mlx4_ib_iboe *iboe = &ibdev->iboe;
+ struct mlx4_ib_iboe *iboe = ibdev->iboe;
struct mlx4_port_gid_table *port_gid_table;
int free = -1, found = -1;
int ret = 0;
@@ -327,7 +327,7 @@ static int mlx4_ib_del_gid(const struct ib_gid_attr *attr, void **context)
{
struct gid_cache_context *ctx = *context;
struct mlx4_ib_dev *ibdev = to_mdev(attr->device);
- struct mlx4_ib_iboe *iboe = &ibdev->iboe;
+ struct mlx4_ib_iboe *iboe = ibdev->iboe;
struct mlx4_port_gid_table *port_gid_table;
int ret = 0;
int hw_update = 0;
@@ -382,7 +382,7 @@ static int mlx4_ib_del_gid(const struct ib_gid_attr *attr, void **context)
int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
const struct ib_gid_attr *attr)
{
- struct mlx4_ib_iboe *iboe = &ibdev->iboe;
+ struct mlx4_ib_iboe *iboe = ibdev->iboe;
struct gid_cache_context *ctx = NULL;
struct mlx4_port_gid_table *port_gid_table;
int real_index = -EINVAL;
@@ -742,7 +742,7 @@ static int eth_link_query_port(struct ib_device *ibdev, u8 port,
{
struct mlx4_ib_dev *mdev = to_mdev(ibdev);
- struct mlx4_ib_iboe *iboe = &mdev->iboe;
+ struct mlx4_ib_iboe *iboe = mdev->iboe;
struct net_device *ndev;
enum ib_mtu tmp;
struct mlx4_cmd_mailbox *mailbox;
@@ -1415,11 +1415,11 @@ int mlx4_ib_add_mc(struct mlx4_ib_dev *mdev, struct mlx4_ib_qp *mqp,
if (!mqp->port)
return 0;
- spin_lock_bh(&mdev->iboe.lock);
- ndev = mdev->iboe.netdevs[mqp->port - 1];
+ spin_lock_bh(&mdev->iboe->lock);
+ ndev = mdev->iboe->netdevs[mqp->port - 1];
if (ndev)
dev_hold(ndev);
- spin_unlock_bh(&mdev->iboe.lock);
+ spin_unlock_bh(&mdev->iboe->lock);
if (ndev) {
ret = 1;
@@ -2078,11 +2078,11 @@ static int mlx4_ib_mcg_detach(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
mutex_lock(&mqp->mutex);
ge = find_gid_entry(mqp, gid->raw);
if (ge) {
- spin_lock_bh(&mdev->iboe.lock);
- ndev = ge->added ? mdev->iboe.netdevs[ge->port - 1] : NULL;
+ spin_lock_bh(&mdev->iboe->lock);
+ ndev = ge->added ? mdev->iboe->netdevs[ge->port - 1] : NULL;
if (ndev)
dev_hold(ndev);
- spin_unlock_bh(&mdev->iboe.lock);
+ spin_unlock_bh(&mdev->iboe->lock);
if (ndev)
dev_put(ndev);
list_del(&ge->list);
@@ -2373,7 +2373,7 @@ static void mlx4_ib_update_qps(struct mlx4_ib_dev *ibdev,
new_smac = mlx4_mac_to_u64(dev->dev_addr);
read_unlock(&dev_base_lock);
- atomic64_set(&ibdev->iboe.mac[port - 1], new_smac);
+ atomic64_set(&ibdev->iboe->mac[port - 1], new_smac);
/* no need for update QP1 and mac registration in non-SRIOV */
if (!mlx4_is_mfunc(ibdev->dev))
@@ -2429,7 +2429,7 @@ static void mlx4_ib_scan_netdevs(struct mlx4_ib_dev *ibdev,
ASSERT_RTNL();
- iboe = &ibdev->iboe;
+ iboe = ibdev->iboe;
spin_lock_bh(&iboe->lock);
mlx4_foreach_ib_transport_port(port, ibdev->dev) {
@@ -2453,13 +2453,13 @@ static int mlx4_ib_netdev_event(struct notifier_block *this,
unsigned long event, void *ptr)
{
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
- struct mlx4_ib_dev *ibdev;
+ struct mlx4_ib_iboe *iboe;
if (!net_eq(dev_net(dev), &init_net))
return NOTIFY_DONE;
- ibdev = container_of(this, struct mlx4_ib_dev, iboe.nb);
- mlx4_ib_scan_netdevs(ibdev, dev, event);
+ iboe = container_of(this, struct mlx4_ib_iboe, nb);
+ mlx4_ib_scan_netdevs(iboe->parent, dev, event);
return NOTIFY_DONE;
}
@@ -2589,6 +2589,14 @@ static void get_fw_ver_str(struct ib_device *device, char *str)
(int) dev->dev->caps.fw_ver & 0xffff);
}
+static void mlx4_ib_release(struct ib_device *device)
+{
+ struct mlx4_ib_dev *ibdev = container_of(device, struct mlx4_ib_dev,
+ ib_dev);
+
+ kvfree(ibdev->iboe);
+}
+
static void *mlx4_ib_add(struct mlx4_dev *dev)
{
struct mlx4_ib_dev *ibdev;
@@ -2619,7 +2627,14 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
return NULL;
}
- iboe = &ibdev->iboe;
+ ibdev->ib_dev.release = mlx4_ib_release;
+
+ ibdev->iboe = kvzalloc(sizeof(struct mlx4_ib_iboe), GFP_KERNEL);
+ if (!ibdev->iboe)
+ goto err_dealloc;
+
+ ibdev->iboe->parent = ibdev;
+ iboe = ibdev->iboe;
if (mlx4_pd_alloc(dev, &ibdev->priv_pdn))
goto err_dealloc;
@@ -2948,10 +2963,10 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
return ibdev;
err_notif:
- if (ibdev->iboe.nb.notifier_call) {
- if (unregister_netdevice_notifier(&ibdev->iboe.nb))
+ if (ibdev->iboe->nb.notifier_call) {
+ if (unregister_netdevice_notifier(&ibdev->iboe->nb))
pr_warn("failure unregistering notifier\n");
- ibdev->iboe.nb.notifier_call = NULL;
+ ibdev->iboe->nb.notifier_call = NULL;
}
flush_workqueue(wq);
@@ -3073,10 +3088,10 @@ static void mlx4_ib_remove(struct mlx4_dev *dev, void *ibdev_ptr)
mlx4_ib_mad_cleanup(ibdev);
ib_unregister_device(&ibdev->ib_dev);
mlx4_ib_diag_cleanup(ibdev);
- if (ibdev->iboe.nb.notifier_call) {
- if (unregister_netdevice_notifier(&ibdev->iboe.nb))
+ if (ibdev->iboe->nb.notifier_call) {
+ if (unregister_netdevice_notifier(&ibdev->iboe->nb))
pr_warn("failure unregistering notifier\n");
- ibdev->iboe.nb.notifier_call = NULL;
+ ibdev->iboe->nb.notifier_call = NULL;
}
mlx4_qp_release_range(dev, ibdev->steer_qpn_base,
@@ -3218,9 +3233,9 @@ static void handle_bonded_port_state_event(struct work_struct *work)
struct ib_event ibev;
kfree(ew);
- spin_lock_bh(&ibdev->iboe.lock);
+ spin_lock_bh(&ibdev->iboe->lock);
for (i = 0; i < MLX4_MAX_PORTS; ++i) {
- struct net_device *curr_netdev = ibdev->iboe.netdevs[i];
+ struct net_device *curr_netdev = ibdev->iboe->netdevs[i];
enum ib_port_state curr_port_state;
if (!curr_netdev)
@@ -3234,7 +3249,7 @@ static void handle_bonded_port_state_event(struct work_struct *work)
bonded_port_state = (bonded_port_state != IB_PORT_ACTIVE) ?
curr_port_state : IB_PORT_ACTIVE;
}
- spin_unlock_bh(&ibdev->iboe.lock);
+ spin_unlock_bh(&ibdev->iboe->lock);
ibev.device = &ibdev->ib_dev;
ibev.element.port_num = 1;
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index e10dccc..2996c61 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -524,6 +524,7 @@ struct mlx4_ib_iboe {
atomic64_t mac[MLX4_MAX_PORTS];
struct notifier_block nb;
struct mlx4_port_gid_table gids[MLX4_MAX_PORTS];
+ struct mlx4_ib_dev *parent;
};
struct pkey_mgt {
@@ -600,7 +601,7 @@ struct mlx4_ib_dev {
struct mutex cap_mask_mutex;
bool ib_active;
- struct mlx4_ib_iboe iboe;
+ struct mlx4_ib_iboe *iboe;
struct mlx4_ib_counters counters_table[MLX4_MAX_PORTS];
int *eq_table;
struct kobject *iov_parent;
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 6dd3cd2..853ef6f 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -1868,7 +1868,7 @@ static int handle_eth_ud_smac_index(struct mlx4_ib_dev *dev,
u64 u64_mac;
int smac_index;
- u64_mac = atomic64_read(&dev->iboe.mac[qp->port - 1]);
+ u64_mac = atomic64_read(&dev->iboe->mac[qp->port - 1]);
context->pri_path.sched_queue = MLX4_IB_DEFAULT_SCHED_QUEUE | ((qp->port - 1) << 6);
if (!qp->pri.smac && !qp->pri.smac_port) {
@@ -2926,7 +2926,7 @@ static int fill_gid_by_hw_index(struct mlx4_ib_dev *ibdev, u8 port_num,
int index, union ib_gid *gid,
enum ib_gid_type *gid_type)
{
- struct mlx4_ib_iboe *iboe = &ibdev->iboe;
+ struct mlx4_ib_iboe *iboe = ibdev->iboe;
struct mlx4_port_gid_table *port_gid_table;
unsigned long flags;
--
2.1.4
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