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authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 22:43:21 +0200
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-20 22:43:21 +0200
commit06f4e926d256d902dd9a53dcb400fd74974ce087 (patch)
tree0b438b67f5f0eff6fd617bc497a9dace6164a488 /drivers/net/wireless/wl12xx/tx.h
parentMerge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/... (diff)
parentmacvlan: fix panic if lowerdev in a bond (diff)
downloadlinux-06f4e926d256d902dd9a53dcb400fd74974ce087.tar.xz
linux-06f4e926d256d902dd9a53dcb400fd74974ce087.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1446 commits) macvlan: fix panic if lowerdev in a bond tg3: Add braces around 5906 workaround. tg3: Fix NETIF_F_LOOPBACK error macvlan: remove one synchronize_rcu() call networking: NET_CLS_ROUTE4 depends on INET irda: Fix error propagation in ircomm_lmp_connect_response() irda: Kill set but unused variable 'bytes' in irlan_check_command_param() irda: Kill set but unused variable 'clen' in ircomm_connect_indication() rxrpc: Fix set but unused variable 'usage' in rxrpc_get_transport() be2net: Kill set but unused variable 'req' in lancer_fw_download() irda: Kill set but unused vars 'saddr' and 'daddr' in irlan_provider_connect_indication() atl1c: atl1c_resume() is only used when CONFIG_PM_SLEEP is defined. rxrpc: Fix set but unused variable 'usage' in rxrpc_get_peer(). rxrpc: Kill set but unused variable 'local' in rxrpc_UDP_error_handler() rxrpc: Kill set but unused variable 'sp' in rxrpc_process_connection() rxrpc: Kill set but unused variable 'sp' in rxrpc_rotate_tx_window() pkt_sched: Kill set but unused variable 'protocol' in tc_classify() isdn: capi: Use pr_debug() instead of ifdefs. tg3: Update version to 3.119 tg3: Apply rx_discards fix to 5719/5720 ... Fix up trivial conflicts in arch/x86/Kconfig and net/mac80211/agg-tx.c as per Davem.
Diffstat (limited to 'drivers/net/wireless/wl12xx/tx.h')
-rw-r--r--drivers/net/wireless/wl12xx/tx.h62
1 files changed, 51 insertions, 11 deletions
diff --git a/drivers/net/wireless/wl12xx/tx.h b/drivers/net/wireless/wl12xx/tx.h
index 02f07fa66e82..832f9258d675 100644
--- a/drivers/net/wireless/wl12xx/tx.h
+++ b/drivers/net/wireless/wl12xx/tx.h
@@ -25,7 +25,6 @@
#ifndef __TX_H__
#define __TX_H__
-#define TX_HW_BLOCK_SPARE 2
#define TX_HW_BLOCK_SIZE 252
#define TX_HW_MGMT_PKT_LIFETIME_TU 2000
@@ -41,6 +40,7 @@
BIT(8) | BIT(9))
#define TX_HW_ATTR_LAST_WORD_PAD (BIT(10) | BIT(11))
#define TX_HW_ATTR_TX_CMPLT_REQ BIT(12)
+#define TX_HW_ATTR_TX_DUMMY_REQ BIT(13)
#define TX_HW_ATTR_OFST_SAVE_RETRIES 0
#define TX_HW_ATTR_OFST_HEADER_PAD 1
@@ -55,20 +55,60 @@
#define WL1271_TX_ALIGN_TO 4
#define WL1271_TKIP_IV_SPACE 4
+/* Used for management frames and dummy packets */
+#define WL1271_TID_MGMT 7
+
+struct wl127x_tx_mem {
+ /*
+ * Number of extra memory blocks to allocate for this packet
+ * in addition to the number of blocks derived from the packet
+ * length.
+ */
+ u8 extra_blocks;
+ /*
+ * Total number of memory blocks allocated by the host for
+ * this packet. Must be equal or greater than the actual
+ * blocks number allocated by HW.
+ */
+ u8 total_mem_blocks;
+} __packed;
+
+struct wl128x_tx_mem {
+ /*
+ * Total number of memory blocks allocated by the host for
+ * this packet.
+ */
+ u8 total_mem_blocks;
+ /*
+ * Number of extra bytes, at the end of the frame. the host
+ * uses this padding to complete each frame to integer number
+ * of SDIO blocks.
+ */
+ u8 extra_bytes;
+} __packed;
+
+/*
+ * On wl128x based devices, when TX packets are aggregated, each packet
+ * size must be aligned to the SDIO block size. The maximum block size
+ * is bounded by the type of the padded bytes field that is sent to the
+ * FW. Currently the type is u8, so the maximum block size is 256 bytes.
+ */
+#define WL12XX_BUS_BLOCK_SIZE min(512u, \
+ (1u << (8 * sizeof(((struct wl128x_tx_mem *) 0)->extra_bytes))))
+
struct wl1271_tx_hw_descr {
/* Length of packet in words, including descriptor+header+data */
__le16 length;
- /* Number of extra memory blocks to allocate for this packet in
- addition to the number of blocks derived from the packet length */
- u8 extra_mem_blocks;
- /* Total number of memory blocks allocated by the host for this packet.
- Must be equal or greater than the actual blocks number allocated by
- HW!! */
- u8 total_mem_blocks;
+ union {
+ struct wl127x_tx_mem wl127x_mem;
+ struct wl128x_tx_mem wl128x_mem;
+ } __packed;
/* Device time (in us) when the packet arrived to the driver */
__le32 start_time;
- /* Max delay in TUs until transmission. The last device time the
- packet can be transmitted is: startTime+(1024*LifeTime) */
+ /*
+ * Max delay in TUs until transmission. The last device time the
+ * packet can be transmitted is: start_time + (1024 * life_time)
+ */
__le16 life_time;
/* Bitwise fields - see TX_ATTR... definitions above. */
__le16 tx_attr;
@@ -145,7 +185,7 @@ static inline int wl1271_tx_get_queue(int queue)
void wl1271_tx_work(struct work_struct *work);
void wl1271_tx_work_locked(struct wl1271 *wl);
void wl1271_tx_complete(struct wl1271 *wl);
-void wl1271_tx_reset(struct wl1271 *wl);
+void wl1271_tx_reset(struct wl1271 *wl, bool reset_tx_queues);
void wl1271_tx_flush(struct wl1271 *wl);
u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band);
u32 wl1271_tx_enabled_rates_get(struct wl1271 *wl, u32 rate_set);