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: 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>
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@ -1105,6 +1105,8 @@ static void ib_cache_update(struct ib_device *device,
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}
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device->cache.lmc_cache[port - rdma_start_port(device)] = tprops->lmc;
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device->cache.port_state_cache[port - rdma_start_port(device)] =
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tprops->state;
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write_unlock_irq(&device->cache.lock);
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@ -1164,7 +1166,11 @@ int ib_cache_setup_one(struct ib_device *device)
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(rdma_end_port(device) -
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rdma_start_port(device) + 1),
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GFP_KERNEL);
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if (!device->cache.pkey_cache ||
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device->cache.port_state_cache = kmalloc(sizeof *device->cache.port_state_cache *
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(rdma_end_port(device) -
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rdma_start_port(device) + 1),
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GFP_KERNEL);
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if (!device->cache.pkey_cache || !device->cache.port_state_cache ||
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!device->cache.lmc_cache) {
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err = -ENOMEM;
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goto free;
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@ -1190,6 +1196,7 @@ err:
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free:
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kfree(device->cache.pkey_cache);
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kfree(device->cache.lmc_cache);
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kfree(device->cache.port_state_cache);
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return err;
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}
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@ -1211,6 +1218,7 @@ void ib_cache_release_one(struct ib_device *device)
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gid_table_release_one(device);
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kfree(device->cache.pkey_cache);
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kfree(device->cache.lmc_cache);
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kfree(device->cache.port_state_cache);
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}
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void ib_cache_cleanup_one(struct ib_device *device)
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@ -1781,6 +1781,7 @@ struct ib_cache {
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struct ib_pkey_cache **pkey_cache;
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struct ib_gid_table **gid_cache;
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u8 *lmc_cache;
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enum ib_port_state *port_state_cache;
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};
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struct ib_dma_mapping_ops {
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