Commit d81bf4b6 authored by Johannes Berg's avatar Johannes Berg
Browse files

wifi: iwlwifi: mvm: align reorder buffer entries to cacheline 



The entries[] array needs to be cacheline aligned to avoid false
sharing between different queues, each queue has a set of entries
in it that it writes to.

While it is aligned in practice today given that each array entry
before it is aligned, it's still clearer to explicitly require it
to be aligned, so add the annotation for that.

Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarMiri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20240703125541.3bc7a55ac867.Id3c1df6d40e92c3de9caededcbc32d0e57e4423d@changeid


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent eb801f4f

drivers/net/wireless/intel/iwlwifi/mvm/mvm.h

+1 −1
Original line number Diff line number Diff line
@@ -798,7 +798,7 @@ struct iwl_mvm_baid_data { 
	struct iwl_mvm_baid_data __rcu **rcu_ptr;

	struct iwl_mvm *mvm;

	struct iwl_mvm_reorder_buffer reorder_buf[IWL_MAX_RX_HW_QUEUES];

	struct iwl_mvm_reorder_buf_entry entries[];

	struct iwl_mvm_reorder_buf_entry entries[] ____cacheline_aligned_in_smp;

};



static inline struct iwl_mvm_baid_data *