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iwlwifi: make TX seqno validation more efficient

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Accessing the device in Tx path is not a good idea.
Mirror the data in DRAM.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-06-11 19:05:27 +02:00
parent 8eb3871076
commit 68972c46f2
2 changed files with 7 additions and 5 deletions
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2
drivers/net/wireless/iwlwifi/pcie/internal.h
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@@ -217,6 +217,7 @@ struct iwl_pcie_txq_scratch_buf {
* @trans_pcie: pointer back to transport (for timer)
* @need_update: indicates need to update read/write index
* @active: stores if queue is active
* @ampdu: true if this queue is an ampdu queue for an specific RA/TID
*
* A Tx queue consists of circular buffer of BDs (a.k.a. TFDs, transmit frame
* descriptors) and required locking structures.
@@ -232,6 +233,7 @@ struct iwl_txq {
struct iwl_trans_pcie *trans_pcie;
u8 need_update;
u8 active;
bool ampdu;
};
static inline dma_addr_t