path: root/drivers/net/wireless/iwlwifi/iwl-commands.h
diff options
authorJohannes Berg <>2011-05-13 11:57:40 -0700
committerWey-Yi Guy <>2011-05-13 12:00:41 -0700
commit4ce7cc2b09553a91d4aea014c39674685715173a (patch)
tree0a2e4b8ae8852a6404c479a7b605ae4b0af6b72d /drivers/net/wireless/iwlwifi/iwl-commands.h
parent4c42db0f04e55d48f0ea9f424144a5211b7a155c (diff)
iwlagn: support multiple TBs per command
The current "huge" command handling is a bit confusing, and very limited since only one command may be huge at a time. Additionally, we often copy data around quite pointlessly since we could instead map the existing scan buffer for example and use it directly. This patch makes that possible. The first change is that multiple buffers may be given to each command (this change was prepared earlier so callsites don't need to change). Each of those can be mapped attached to a TB in the TFD, and the command header can use a TB (the first one) in the TFD as well. Doing this allows getting rid of huge commands in favour of mapping existing buffers. The beacon transmission is also optimised to not copy the SKB at all but use multiple TBs. Signed-off-by: Johannes Berg <> Signed-off-by: Wey-Yi Guy <>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-commands.h')
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h
index 5fdad6532118..6ee5f1aa555c 100644
--- a/drivers/net/wireless/iwlwifi/iwl-commands.h
+++ b/drivers/net/wireless/iwlwifi/iwl-commands.h
@@ -205,7 +205,6 @@ enum {
#define QUEUE_TO_SEQ(q) (((q) & 0x1f) << 8)
#define SEQ_TO_INDEX(s) ((s) & 0xff)
#define INDEX_TO_SEQ(i) ((i) & 0xff)
-#define SEQ_HUGE_FRAME cpu_to_le16(0x4000)
#define SEQ_RX_FRAME cpu_to_le16(0x8000)
@@ -234,9 +233,7 @@ struct iwl_cmd_header {
* 0:7 tfd index - position within TX queue
* 8:12 TX queue id
- * 13 reserved
- * 14 huge - driver sets this to indicate command is in the
- * 'huge' storage at the end of the command buffers
+ * 13:14 reserved
* 15 unsolicited RX or uCode-originated notification
__le16 sequence;