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[4/5] mwifiex: CPU mips optimization with NO_PKT_PRIO_TID

Message ID 1305598673-26606-5-git-send-email-bzhao@marvell.com (mailing list archive)
State Not Applicable, archived
Headers show

Commit Message

Bing Zhao May 17, 2011, 2:17 a.m. UTC 
From: Marc Yang <yangyang@marvell.com>

If we go through the entire for loop in
mwifiex_wmm_get_highest_priolist_ptr() and don't find any packets,
set highest_queued_prio to NO_PKT_PRIO_TID (< LOW_PRIO_TID).

Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Bing Zhao <bzhao@marvell.com>
---
 drivers/net/wireless/mwifiex/main.h |    1 +
 drivers/net/wireless/mwifiex/wmm.c  |    6 ++++++
 2 files changed, 7 insertions(+), 0 deletions(-)
diff mbox

Patch

diff --git a/drivers/net/wireless/mwifiex/main.h b/drivers/net/wireless/mwifiex/main.h
index ea3184d..3154b0a 100644
--- a/drivers/net/wireless/mwifiex/main.h
+++ b/drivers/net/wireless/mwifiex/main.h
@@ -202,6 +202,7 @@  struct mwifiex_tid_tbl {
 #define WMM_HIGHEST_PRIORITY		7
 #define HIGH_PRIO_TID				7
 #define LOW_PRIO_TID				0
+#define NO_PKT_PRIO_TID				(-1)
 
 struct mwifiex_wmm_desc {
 	struct mwifiex_tid_tbl tid_tbl_ptr[MAX_NUM_TID];
diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c
index 784ad4c..91634da 100644
--- a/drivers/net/wireless/mwifiex/wmm.c
+++ b/drivers/net/wireless/mwifiex/wmm.c
@@ -946,6 +946,12 @@  mwifiex_wmm_get_highest_priolist_ptr(struct mwifiex_adapter *adapter,
 				} while (ptr != head);
 			}
 
+			/* No packet at any TID for this priv. Mark as such
+			 * to skip checking TIDs for this priv (until pkt is
+			 * added).
+			 */
+			atomic_set(hqp, NO_PKT_PRIO_TID);
+
 			/* Get next bss priority node */
 			bssprio_node = list_first_entry(&bssprio_node->list,
 						struct mwifiex_bss_prio_node,