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authorFelix Fietkau <nbd@openwrt.org>2008-07-20 12:37:13 +0000
committerFelix Fietkau <nbd@openwrt.org>2008-07-20 12:37:13 +0000
commit2043a450da6453f1a211237c3f0a22397186be21 (patch)
treed3071707cf2368a0d2e580666dbdd0c697b3ea3e
parentd53ff609b529518ee2b2a0127e7f6108bc05cf9a (diff)
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ath9k: remove software descriptor swapping, hw already does that
SVN-Revision: 11885
-rw-r--r--package/ath9k/patches/140-no_desc_swap.patch64
1 files changed, 64 insertions, 0 deletions
diff --git a/package/ath9k/patches/140-no_desc_swap.patch b/package/ath9k/patches/140-no_desc_swap.patch
new file mode 100644
index 0000000000..46b2ec90de
--- /dev/null
+++ b/package/ath9k/patches/140-no_desc_swap.patch
@@ -0,0 +1,64 @@
+Remove the descriptor swap, as the driver already configures the hardware for
+descriptor swapping on big endian systems
+
+Signed-off-by: Felix Fietkau <nbd@openwrt.org>
+
+--- a/drivers/net/wireless/ath9k/core.c
++++ b/drivers/net/wireless/ath9k/core.c
+@@ -2141,22 +2141,6 @@
+ memzero(dd, sizeof(*dd));
+ }
+
+-/*
+- * Endian Swap for transmit descriptor
+- *
+- * XXX: Move cpu_to_le32() into hw.c and anywhere we set them, then
+- * remove this.
+-*/
+-void ath_desc_swap(struct ath_desc *ds)
+-{
+- ds->ds_link = cpu_to_le32(ds->ds_link);
+- ds->ds_data = cpu_to_le32(ds->ds_data);
+- ds->ds_ctl0 = cpu_to_le32(ds->ds_ctl0);
+- ds->ds_ctl1 = cpu_to_le32(ds->ds_ctl1);
+- ds->ds_hw[0] = cpu_to_le32(ds->ds_hw[0]);
+- ds->ds_hw[1] = cpu_to_le32(ds->ds_hw[1]);
+-}
+-
+ /*************/
+ /* Utilities */
+ /*************/
+--- a/drivers/net/wireless/ath9k/beacon.c
++++ b/drivers/net/wireless/ath9k/beacon.c
+@@ -140,11 +140,6 @@
+ series[0].RateFlags = (ctsrate) ? HAL_RATESERIES_RTS_CTS : 0;
+ ath9k_hw_set11n_ratescenario(ah, ds, ds, 0,
+ ctsrate, ctsduration, series, 4, 0);
+-
+- /* NB: The desc swap function becomes void,
+- * if descriptor swapping is not enabled
+- */
+- ath_desc_swap(ds);
+ }
+
+ /* Move everything from the vap's mcast queue to the hardware cab queue.
+--- a/drivers/net/wireless/ath9k/core.h
++++ b/drivers/net/wireless/ath9k/core.h
+@@ -384,7 +384,6 @@
+ void ath_descdma_cleanup(struct ath_softc *sc,
+ struct ath_descdma *dd,
+ struct list_head *head);
+-void ath_desc_swap(struct ath_desc *ds);
+
+ /******/
+ /* RX */
+--- a/drivers/net/wireless/ath9k/xmit.c
++++ b/drivers/net/wireless/ath9k/xmit.c
+@@ -2062,7 +2062,6 @@
+ AH_TRUE, /* first segment */
+ (n_sg == 1) ? AH_TRUE : AH_FALSE, /* last segment */
+ ds); /* first descriptor */
+- ath_desc_swap(ds);
+
+ bf->bf_lastfrm = bf;
+ bf->bf_ht = txctl->ht;