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RDMA/core: add port state cache

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We need a port state cache in ib_core, later we will use in rdma_cm.

Signed-off-by: Jack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: Michael Wang <yun.wang@profitbricks.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Jack Wang 2017-01-02 13:17:36 +01:00 committed by Doug Ledford
parent 27d41d29c7
commit aaaca121c7
2 changed files with 10 additions and 1 deletions
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10
drivers/infiniband/core/cache.c
View File

@ -1105,6 +1105,8 @@ static void ib_cache_update(struct ib_device *device,
}
device->cache.lmc_cache[port - rdma_start_port(device)] = tprops->lmc;
device->cache.port_state_cache[port - rdma_start_port(device)] =
tprops->state;
write_unlock_irq(&device->cache.lock);
@ -1164,7 +1166,11 @@ int ib_cache_setup_one(struct ib_device *device)
(rdma_end_port(device) -
rdma_start_port(device) + 1),
GFP_KERNEL);
if (!device->cache.pkey_cache ||
device->cache.port_state_cache = kmalloc(sizeof *device->cache.port_state_cache *
(rdma_end_port(device) -
rdma_start_port(device) + 1),
GFP_KERNEL);
if (!device->cache.pkey_cache || !device->cache.port_state_cache ||
!device->cache.lmc_cache) {
err = -ENOMEM;
goto free;
@ -1190,6 +1196,7 @@ err:
free:
kfree(device->cache.pkey_cache);
kfree(device->cache.lmc_cache);
kfree(device->cache.port_state_cache);
return err;
}
@ -1211,6 +1218,7 @@ void ib_cache_release_one(struct ib_device *device)
gid_table_release_one(device);
kfree(device->cache.pkey_cache);
kfree(device->cache.lmc_cache);
kfree(device->cache.port_state_cache);
}
void ib_cache_cleanup_one(struct ib_device *device)

1
include/rdma/ib_verbs.h
View File

@ -1781,6 +1781,7 @@ struct ib_cache {
struct ib_pkey_cache **pkey_cache;
struct ib_gid_table **gid_cache;
u8 *lmc_cache;
enum ib_port_state *port_state_cache;
};
struct ib_dma_mapping_ops {