Rcu #233
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Rcu #233
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These are not used anywhere in the code. They were meant for adding RCU stuff but will not fit the bill. I will introduce proper RCU in the next commits. Signed-off-by: Robin Jarry <robin@jarry.cc>
Create an RCU object global to the application and initialize it with RTE_MAX_LCORE reader threads. Report quiescent state every turn of main loop. Expose the rte_rcu_qsbr structure pointer for any subsystem that would like to make use of it. It will be leveraged in the next commits to ensure the datapath workers do not hold a reference on objects when they are freed/unallocated by the control plane thread. Link: http://doc.dpdk.org/guides/prog_guide/rcu_lib.html Signed-off-by: Robin Jarry <robin@jarry.cc>
When a nexthop refcount drops to 0, wait until all worker threads have reported quiescent state before freeing it and putting it back into the pool. Signed-off-by: Robin Jarry <robin@jarry.cc>
When destroying an interface, set the pointer value in the array to NULL to avoid anyone from accessing it anymore and wait until all worker threads have reported quiescent state before freeing the resources. Signed-off-by: Robin Jarry <robin@jarry.cc>
Attach an RCU object to the hash table. Signed-off-by: Robin Jarry <robin@jarry.cc>
Attach an RCU object to the routing tables. Closes: DPDK#9 Signed-off-by: Robin Jarry <robin@jarry.cc>
Attach the RCU object to the hash table. Signed-off-by: Robin Jarry <robin@jarry.cc>
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