iwlwifi: introduce per-queue locks
Instead of (ab)using the sta_lock, make the
transport layer lock its own TX queue data
structures with a lock per queue. This also
unifies with the cmd queue lock.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
index 5b26b71..b102946 100644
--- a/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
+++ b/drivers/net/wireless/iwlwifi/iwl-trans-pcie-int.h
@@ -169,6 +169,7 @@
* @meta: array of meta data for each command/tx buffer
* @dma_addr_cmd: physical address of cmd/tx buffer array
* @txb: array of per-TFD driver data
+ * lock: queue lock
* @time_stamp: time (in jiffies) of last read_ptr change
* @need_update: indicates need to update read/write index
* @sched_retry: indicates queue is high-throughput aggregation (HT AGG) enabled
@@ -187,6 +188,7 @@
struct iwl_device_cmd **cmd;
struct iwl_cmd_meta *meta;
struct sk_buff **skbs;
+ spinlock_t lock;
unsigned long time_stamp;
u8 need_update;
u8 sched_retry;