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Commit aaaca121 authored by Jack Wang's avatar Jack Wang Committed by Doug Ledford
Browse files

RDMA/core: add port state cache 



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

Signed-off-by: default avatarJack Wang <jinpu.wang@profitbricks.com>
Reviewed-by: default avatarMichael Wang <yun.wang@profitbricks.com>
Acked-by: default avatarSean Hefty <sean.hefty@intel.com>
Signed-off-by: default avatarDoug Ledford <dledford@redhat.com>
parent 27d41d29

drivers/infiniband/core/cache.c

+9 −1
Original line number Diff line number Diff line
@@ -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 @@ int ib_cache_setup_one(struct ib_device *device) 
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)

include/rdma/ib_verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -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 {