diff mbox

[for-next,v2,02/10] IB/core: Expose and rename ib_find_cached_gid_by_port cache API

Message ID 1444923534-10882-3-git-send-email-matanb@mellanox.com (mailing list archive)
State Accepted
Headers show

Commit Message

Matan Barak Oct. 15, 2015, 3:38 p.m. UTC
Sometime consumers might want to search for a GID in a specific port.
For example, when a WC arrives and we want to search the GID
that matches that port - it's better to search only the relevant
port.
Exposing and renaming ib_cache_gid_find_by_port in order to match
the naming convention of the module.

Signed-off-by: Matan Barak <matanb@mellanox.com>
---
 drivers/infiniband/core/cache.c     |  9 +++++----
 drivers/infiniband/core/core_priv.h |  5 -----
 drivers/infiniband/core/device.c    |  4 ++--
 include/rdma/ib_cache.h             | 19 +++++++++++++++++++
 4 files changed, 26 insertions(+), 11 deletions(-)

Comments

Devesh Sharma Oct. 18, 2015, 3:51 p.m. UTC | #1
looks good, Reviewed-By: Devesh Sharma <devesh.sharma@avagotech.com>

On Thu, Oct 15, 2015 at 9:08 PM, Matan Barak <matanb@mellanox.com> wrote:
> Sometime consumers might want to search for a GID in a specific port.
> For example, when a WC arrives and we want to search the GID
> that matches that port - it's better to search only the relevant
> port.
> Exposing and renaming ib_cache_gid_find_by_port in order to match
> the naming convention of the module.
>
> Signed-off-by: Matan Barak <matanb@mellanox.com>
> ---
>  drivers/infiniband/core/cache.c     |  9 +++++----
>  drivers/infiniband/core/core_priv.h |  5 -----
>  drivers/infiniband/core/device.c    |  4 ++--
>  include/rdma/ib_cache.h             | 19 +++++++++++++++++++
>  4 files changed, 26 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
> index 5c05407..639a726 100644
> --- a/drivers/infiniband/core/cache.c
> +++ b/drivers/infiniband/core/cache.c
> @@ -409,10 +409,10 @@ static int ib_cache_gid_find(struct ib_device *ib_dev,
>                                         mask, port, index);
>  }
>
> -int ib_cache_gid_find_by_port(struct ib_device *ib_dev,
> -                             const union ib_gid *gid,
> -                             u8 port, struct net_device *ndev,
> -                             u16 *index)
> +int ib_find_cached_gid_by_port(struct ib_device *ib_dev,
> +                              const union ib_gid *gid,
> +                              u8 port, struct net_device *ndev,
> +                              u16 *index)
>  {
>         int local_index;
>         struct ib_gid_table **ports_table = ib_dev->cache.gid_cache;
> @@ -438,6 +438,7 @@ int ib_cache_gid_find_by_port(struct ib_device *ib_dev,
>
>         return -ENOENT;
>  }
> +EXPORT_SYMBOL(ib_find_cached_gid_by_port);
>
>  static struct ib_gid_table *alloc_gid_table(int sz)
>  {
> diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
> index 70bb36e..0df82b1 100644
> --- a/drivers/infiniband/core/core_priv.h
> +++ b/drivers/infiniband/core/core_priv.h
> @@ -65,11 +65,6 @@ void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
>                               roce_netdev_callback cb,
>                               void *cookie);
>
> -int ib_cache_gid_find_by_port(struct ib_device *ib_dev,
> -                             const union ib_gid *gid,
> -                             u8 port, struct net_device *ndev,
> -                             u16 *index);
> -
>  enum ib_cache_gid_default_mode {
>         IB_CACHE_GID_DEFAULT_MODE_SET,
>         IB_CACHE_GID_DEFAULT_MODE_DELETE
> diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
> index f22ce48..179e813 100644
> --- a/drivers/infiniband/core/device.c
> +++ b/drivers/infiniband/core/device.c
> @@ -838,8 +838,8 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
>
>         for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) {
>                 if (rdma_cap_roce_gid_table(device, port)) {
> -                       if (!ib_cache_gid_find_by_port(device, gid, port,
> -                                                      ndev, index)) {
> +                       if (!ib_find_cached_gid_by_port(device, gid, port,
> +                                                       ndev, index)) {
>                                 *port_num = port;
>                                 return 0;
>                         }
> diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
> index dcc9bed..679d7ca 100644
> --- a/include/rdma/ib_cache.h
> +++ b/include/rdma/ib_cache.h
> @@ -75,6 +75,25 @@ int ib_find_cached_gid(struct ib_device *device,
>                        u16              *index);
>
>  /**
> + * ib_find_cached_gid_by_port - Returns the GID table index where a specified
> + * GID value occurs
> + * @device: The device to query.
> + * @gid: The GID value to search for.
> + * @port_num: The port number of the device where the GID value sould be
> + *   searched.
> + * @ndev: In RoCE, the net device of the device. Null means ignore.
> + * @index: The index into the cached GID table where the GID was found.  This
> + *   parameter may be NULL.
> + *
> + * ib_find_cached_gid() searches for the specified GID value in
> + * the local software cache.
> + */
> +int ib_find_cached_gid_by_port(struct ib_device *device,
> +                              const union ib_gid *gid,
> +                              u8               port_num,
> +                              struct net_device *ndev,
> +                              u16              *index);
> +/**
>   * ib_get_cached_pkey - Returns a cached PKey table entry
>   * @device: The device to query.
>   * @port_num: The port number of the device to query.
> --
> 2.1.0
>
> --
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diff mbox

Patch

diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c
index 5c05407..639a726 100644
--- a/drivers/infiniband/core/cache.c
+++ b/drivers/infiniband/core/cache.c
@@ -409,10 +409,10 @@  static int ib_cache_gid_find(struct ib_device *ib_dev,
 					mask, port, index);
 }
 
-int ib_cache_gid_find_by_port(struct ib_device *ib_dev,
-			      const union ib_gid *gid,
-			      u8 port, struct net_device *ndev,
-			      u16 *index)
+int ib_find_cached_gid_by_port(struct ib_device *ib_dev,
+			       const union ib_gid *gid,
+			       u8 port, struct net_device *ndev,
+			       u16 *index)
 {
 	int local_index;
 	struct ib_gid_table **ports_table = ib_dev->cache.gid_cache;
@@ -438,6 +438,7 @@  int ib_cache_gid_find_by_port(struct ib_device *ib_dev,
 
 	return -ENOENT;
 }
+EXPORT_SYMBOL(ib_find_cached_gid_by_port);
 
 static struct ib_gid_table *alloc_gid_table(int sz)
 {
diff --git a/drivers/infiniband/core/core_priv.h b/drivers/infiniband/core/core_priv.h
index 70bb36e..0df82b1 100644
--- a/drivers/infiniband/core/core_priv.h
+++ b/drivers/infiniband/core/core_priv.h
@@ -65,11 +65,6 @@  void ib_enum_all_roce_netdevs(roce_netdev_filter filter,
 			      roce_netdev_callback cb,
 			      void *cookie);
 
-int ib_cache_gid_find_by_port(struct ib_device *ib_dev,
-			      const union ib_gid *gid,
-			      u8 port, struct net_device *ndev,
-			      u16 *index);
-
 enum ib_cache_gid_default_mode {
 	IB_CACHE_GID_DEFAULT_MODE_SET,
 	IB_CACHE_GID_DEFAULT_MODE_DELETE
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c
index f22ce48..179e813 100644
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -838,8 +838,8 @@  int ib_find_gid(struct ib_device *device, union ib_gid *gid,
 
 	for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) {
 		if (rdma_cap_roce_gid_table(device, port)) {
-			if (!ib_cache_gid_find_by_port(device, gid, port,
-						       ndev, index)) {
+			if (!ib_find_cached_gid_by_port(device, gid, port,
+							ndev, index)) {
 				*port_num = port;
 				return 0;
 			}
diff --git a/include/rdma/ib_cache.h b/include/rdma/ib_cache.h
index dcc9bed..679d7ca 100644
--- a/include/rdma/ib_cache.h
+++ b/include/rdma/ib_cache.h
@@ -75,6 +75,25 @@  int ib_find_cached_gid(struct ib_device *device,
 		       u16              *index);
 
 /**
+ * ib_find_cached_gid_by_port - Returns the GID table index where a specified
+ * GID value occurs
+ * @device: The device to query.
+ * @gid: The GID value to search for.
+ * @port_num: The port number of the device where the GID value sould be
+ *   searched.
+ * @ndev: In RoCE, the net device of the device. Null means ignore.
+ * @index: The index into the cached GID table where the GID was found.  This
+ *   parameter may be NULL.
+ *
+ * ib_find_cached_gid() searches for the specified GID value in
+ * the local software cache.
+ */
+int ib_find_cached_gid_by_port(struct ib_device *device,
+			       const union ib_gid *gid,
+			       u8               port_num,
+			       struct net_device *ndev,
+			       u16              *index);
+/**
  * ib_get_cached_pkey - Returns a cached PKey table entry
  * @device: The device to query.
  * @port_num: The port number of the device to query.