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IB/core: Add helpers for uncached GID and P_Key searches

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Add ib_find_gid() and ib_find_pkey() functions that use uncached device
queries.  The calls might block but the returns are always up-to-date.
Cache P_Key and GID table lengths in core to avoid extra port info queries.

Signed-off-by: Yosef Etigin <yosefe@voltaire.com>
Acked-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Yosef Etigin
2007-05-14 07:26:51 +03:00
committed by Roland Dreier
parent 8b8c8bca3a
commit 5eb620c81c
2 changed files with 133 additions and 0 deletions
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8
include/rdma/ib_verbs.h
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@@ -890,6 +890,8 @@ struct ib_device {
spinlock_t client_data_lock;
struct ib_cache cache;
int *pkey_tbl_len;
int *gid_tbl_len;
u32 flags;
@@ -1118,6 +1120,12 @@ int ib_modify_port(struct ib_device *device,
u8 port_num, int port_modify_mask,
struct ib_port_modify *port_modify);
int ib_find_gid(struct ib_device *device, union ib_gid *gid,
u8 *port_num, u16 *index);
int ib_find_pkey(struct ib_device *device,
u8 port_num, u16 pkey, u16 *index);
/**
* ib_alloc_pd - Allocates an unused protection domain.
* @device: The device on which to allocate the protection domain.