carl9170: support firmware-based rx filter
The hardware rx-filter was essentially disabled, because
of a serve, yet unidentifiable problem with iwlagn.
Due to these circumstances the driver and mac80211 were
left with the job of filtering.
This is very unfortunate and has proven to be expensive
in terms of latency, memory and load.
Therefore the new 1.8.8.3 firmware introduces a flexible
filtering infrastructure which allows the driver to
offload some of the checks (FCS & PLCP crc check,
RA match, control frame filter, etc...) whenever possible.
Note:
This patch also includes all changes to the
shared headers files since the inclusion.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/ath/carl9170/fwcmd.h b/drivers/net/wireless/ath/carl9170/fwcmd.h
index d4a4e1d..d552166 100644
--- a/drivers/net/wireless/ath/carl9170/fwcmd.h
+++ b/drivers/net/wireless/ath/carl9170/fwcmd.h
@@ -53,6 +53,7 @@
CARL9170_CMD_REBOOT = 0x04,
CARL9170_CMD_BCN_CTRL = 0x05,
CARL9170_CMD_READ_TSF = 0x06,
+ CARL9170_CMD_RX_FILTER = 0x07,
/* CAM */
CARL9170_CMD_EKEY = 0x10,
@@ -153,6 +154,20 @@
} __packed;
#define CARL9170_PSM_SIZE 4
+struct carl9170_rx_filter_cmd {
+ __le32 rx_filter;
+} __packed;
+#define CARL9170_RX_FILTER_CMD_SIZE 4
+
+#define CARL9170_RX_FILTER_BAD 0x01
+#define CARL9170_RX_FILTER_OTHER_RA 0x02
+#define CARL9170_RX_FILTER_DECRY_FAIL 0x04
+#define CARL9170_RX_FILTER_CTL_OTHER 0x08
+#define CARL9170_RX_FILTER_CTL_PSPOLL 0x10
+#define CARL9170_RX_FILTER_CTL_BACKR 0x20
+#define CARL9170_RX_FILTER_MGMT 0x40
+#define CARL9170_RX_FILTER_DATA 0x80
+
struct carl9170_bcn_ctrl_cmd {
__le32 vif_id;
__le32 mode;
@@ -188,6 +203,7 @@
struct carl9170_rf_init rf_init;
struct carl9170_psm psm;
struct carl9170_bcn_ctrl_cmd bcn_ctrl;
+ struct carl9170_rx_filter_cmd rx_filter;
u8 data[CARL9170_MAX_CMD_PAYLOAD_LEN];
} __packed;
} __packed;