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authorMatan Barak <matanb@mellanox.com>2015-10-15 18:38:46 +0300
committerDoug Ledford <dledford@redhat.com>2015-10-21 23:48:17 -0400
commitd300ec528b799ca87935b3667f5563f397f00f85 (patch)
tree731294d458a5a6f2717277497892271b3903d2de
parent55ee3ab2e49a9ead850722ef47698243dd226d16 (diff)
downloadop-kernel-dev-d300ec528b799ca87935b3667f5563f397f00f85.zip
op-kernel-dev-d300ec528b799ca87935b3667f5563f397f00f85.tar.gz
IB/core: Expose and rename ib_find_cached_gid_by_port cache API
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> Signed-off-by: Doug Ledford <dledford@redhat.com>
-rw-r--r--drivers/infiniband/core/cache.c9
-rw-r--r--drivers/infiniband/core/core_priv.h5
-rw-r--r--drivers/infiniband/core/device.c4
-rw-r--r--include/rdma/ib_cache.h19
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.
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