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authorJack Morgenstein <jackm@dev.mellanox.co.il>2014-07-28 23:30:22 +0300
committerDavid S. Miller <davem@davemloft.net>2014-07-30 14:00:06 -0700
commit9603b61de1eee92977d74ff42541be20c0c5b1a7 (patch)
treea0663e54d33771416e124ba30b4c1fd918a587dd /include/linux/mlx5
parent4ada97abe937cdb3fc029a871d5b0f21aa661a60 (diff)
mlx5: Move pci device handling from mlx5_ib to mlx5_core
In preparation for a new mlx5 device which is VPI (i.e., ports can be either IB or ETH), move the pci device functionality from mlx5_ib to mlx5_core. This involves the following changes: 1. Move mlx5_core_dev struct out of mlx5_ib_dev. mlx5_core_dev is now an independent structure maintained by mlx5_core. mlx5_ib_dev now has a pointer to that struct. This requires changing a lot of places where the core_dev struct was accessed via mlx5_ib_dev (now, this needs to be a pointer dereference). 2. All PCI initializations are now done in mlx5_core. Thus, it is now mlx5_core which does pci_register_device (and not mlx5_ib, as was previously). 3. mlx5_ib now registers itself with mlx5_core as an "interface" driver. This is very similar to the mechanism employed for the mlx4 (ConnectX) driver. Once the HCA is initialized (by mlx5_core), it invokes the interface drivers to do their initializations. 4. There is a new event handler which the core registers: mlx5_core_event(). This event handler invokes the event handlers registered by the interfaces. Based on a patch by Eli Cohen <eli@mellanox.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/mlx5')
-rw-r--r--include/linux/mlx5/driver.h17
1 files changed, 15 insertions, 2 deletions
diff --git a/include/linux/mlx5/driver.h b/include/linux/mlx5/driver.h
index 2bce4aad2570..d0cb5984a45f 100644
--- a/include/linux/mlx5/driver.h
+++ b/include/linux/mlx5/driver.h
@@ -543,6 +543,10 @@ struct mlx5_priv {
/* protect mkey key part */
spinlock_t mkey_lock;
u8 mkey_key;
+
+ struct list_head dev_list;
+ struct list_head ctx_list;
+ spinlock_t ctx_lock;
};
struct mlx5_core_dev {
@@ -686,8 +690,6 @@ static inline u32 mlx5_base_mkey(const u32 key)
return key & 0xffffff00u;
}
-int mlx5_dev_init(struct mlx5_core_dev *dev, struct pci_dev *pdev);
-void mlx5_dev_cleanup(struct mlx5_core_dev *dev);
int mlx5_cmd_init(struct mlx5_core_dev *dev);
void mlx5_cmd_cleanup(struct mlx5_core_dev *dev);
void mlx5_cmd_use_events(struct mlx5_core_dev *dev);
@@ -811,6 +813,17 @@ enum {
MAX_MR_CACHE_ENTRIES = 16,
};
+struct mlx5_interface {
+ void * (*add)(struct mlx5_core_dev *dev);
+ void (*remove)(struct mlx5_core_dev *dev, void *context);
+ void (*event)(struct mlx5_core_dev *dev, void *context,
+ enum mlx5_dev_event event, void *data);
+ struct list_head list;
+};
+
+int mlx5_register_interface(struct mlx5_interface *intf);
+void mlx5_unregister_interface(struct mlx5_interface *intf);
+
struct mlx5_profile {
u64 mask;
u32 log_max_qp;