diff options
Diffstat (limited to 'drivers/infiniband/core/cache.c')
| -rw-r--r-- | drivers/infiniband/core/cache.c | 43 |
1 files changed, 42 insertions, 1 deletions
diff --git a/drivers/infiniband/core/cache.c b/drivers/infiniband/core/cache.c index 9353992f9eea..80f6cf2449fb 100644 --- a/drivers/infiniband/core/cache.c +++ b/drivers/infiniband/core/cache.c @@ -167,6 +167,7 @@ int ib_find_cached_pkey(struct ib_device *device, unsigned long flags; int i; int ret = -ENOENT; + int partial_ix = -1; if (port_num < start_port(device) || port_num > end_port(device)) return -EINVAL; @@ -179,6 +180,46 @@ int ib_find_cached_pkey(struct ib_device *device, for (i = 0; i < cache->table_len; ++i) if ((cache->table[i] & 0x7fff) == (pkey & 0x7fff)) { + if (cache->table[i] & 0x8000) { + *index = i; + ret = 0; + break; + } else + partial_ix = i; + } + + if (ret && partial_ix >= 0) { + *index = partial_ix; + ret = 0; + } + + read_unlock_irqrestore(&device->cache.lock, flags); + + return ret; +} +EXPORT_SYMBOL(ib_find_cached_pkey); + +int ib_find_exact_cached_pkey(struct ib_device *device, + u8 port_num, + u16 pkey, + u16 *index) +{ + struct ib_pkey_cache *cache; + unsigned long flags; + int i; + int ret = -ENOENT; + + if (port_num < start_port(device) || port_num > end_port(device)) + return -EINVAL; + + read_lock_irqsave(&device->cache.lock, flags); + + cache = device->cache.pkey_cache[port_num - start_port(device)]; + + *index = -1; + + for (i = 0; i < cache->table_len; ++i) + if (cache->table[i] == pkey) { *index = i; ret = 0; break; @@ -188,7 +229,7 @@ int ib_find_cached_pkey(struct ib_device *device, return ret; } -EXPORT_SYMBOL(ib_find_cached_pkey); +EXPORT_SYMBOL(ib_find_exact_cached_pkey); int ib_get_cached_lmc(struct ib_device *device, u8 port_num, |