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| author | Sara Sharon | 2015-12-16 17:48:28 +0100 |
|---|---|---|
| committer | Emmanuel Grumbach | 2016-02-27 21:00:10 +0100 |
| commit | 94bb44813ebe07ff06f869c7612c0c73e04ac4b0 (patch) | |
| tree | 9914073ae33ec46d9326a6057f2766c687cd2c59 /drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | |
| parent | iwlwifi: mvm: add duplicate packet detection per rx queue (diff) | |
| download | kernel-qcow2-linux-94bb44813ebe07ff06f869c7612c0c73e04ac4b0.tar.gz kernel-qcow2-linux-94bb44813ebe07ff06f869c7612c0c73e04ac4b0.tar.xz kernel-qcow2-linux-94bb44813ebe07ff06f869c7612c0c73e04ac4b0.zip | |
iwlwifi: mvm: add RSS queues notification infrastructure
In multi rx queue HW, without execessive locking, there is no sync
between the ctrl path (default queue) and the rest of the rx queues.
This might cause issues on certain situations. For example, in case
a delBA was processed on a default queue but out of order packets
still wait for processing on the other queue.
The solution is to introduce internal messaging between the CTRL path
and the other rx queues.
The driver will send a message to the firmware, which will echo it to
all the requested queues. The message will be in order inside the queue.
This way we can avoid CTRL path and RSS queues races.
Add support for this messaging mechanism. As the firmware is agnostic to
the data sent, add internal representation of the data as well.
Although currently only delBA flow will use it, the internal representation
will enable generic use of this infrastructure for future uses.
Next patch will utilize this messaging mechanism for the reorder buffer
delBA flow.
Signed-off-by: Sara Sharon <sara.sharon@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/mvm.h')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index fa987bd9da0d..f05d2a1f4467 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1225,6 +1225,10 @@ void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi, struct iwl_rx_cmd_buffer *rxb, int queue); void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, int queue); +int iwl_mvm_notify_rx_queue(struct iwl_mvm *mvm, u32 rxq_mask, + const u8 *data, u32 count); +void iwl_mvm_rx_queue_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, + int queue); void iwl_mvm_rx_tx_cmd(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); void iwl_mvm_rx_ba_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb); void iwl_mvm_rx_ant_coupling_notif(struct iwl_mvm *mvm, |