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iwlwifi: tx fifo queue flush command

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Add host command and structure for tx fifo queue flush

Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
This commit is contained in:
Wey-Yi Guy 2010-06-24 13:18:33 -07:00
parent ad8d8333b1
commit 947279eefb
2 changed files with 35 additions and 0 deletions
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34
drivers/net/wireless/iwlwifi/iwl-commands.h
View File

@ -97,6 +97,7 @@ enum {
REPLY_ADD_STA = 0x18,
REPLY_REMOVE_STA = 0x19,
REPLY_REMOVE_ALL_STA = 0x1a, /* not used */
REPLY_TXFIFO_FLUSH = 0x1e,
/* Security */
REPLY_WEPKEY = 0x20,
@ -1209,6 +1210,39 @@ struct iwl_rem_sta_cmd {
u8 reserved2[2];
} __attribute__ ((packed));
#define IWL_TX_FIFO_BK_MSK cpu_to_le32(BIT(0))
#define IWL_TX_FIFO_BE_MSK cpu_to_le32(BIT(1))
#define IWL_TX_FIFO_VI_MSK cpu_to_le32(BIT(2))
#define IWL_TX_FIFO_VO_MSK cpu_to_le32(BIT(3))
#define IWL_AGG_TX_QUEUE_MSK cpu_to_le32(0xffc00)
/*
* REPLY_TXFIFO_FLUSH = 0x1e(command and response)
*
* When using full FIFO flush this command checks the scheduler HW block WR/RD
* pointers to check if all the frames were transferred by DMA into the
* relevant TX FIFO queue. Only when the DMA is finished and the queue is
* empty the command can finish.
* This command is used to flush the TXFIFO from transmit commands, it may
* operate on single or multiple queues, the command queue can't be flushed by
* this command. The command response is returned when all the queue flush
* operations are done. Each TX command flushed return response with the FLUSH
* status set in the TX response status. When FIFO flush operation is used,
* the flush operation ends when both the scheduler DMA done and TXFIFO empty
* are set.
*
* @fifo_control: bit mask for which queues to flush
* @flush_control: flush controls
* 0: Dump single MSDU
* 1: Dump multiple MSDU according to PS, INVALID STA, TTL, TID disable.
* 2: Dump all FIFO
*/
struct iwl_txfifo_flush_cmd {
__le32 fifo_control;
__le16 flush_control;
__le16 reserved;
} __attribute__ ((packed));
/*
* REPLY_WEP_KEY = 0x20
*/

1
drivers/net/wireless/iwlwifi/iwl-hcmd.c
View File

@ -49,6 +49,7 @@ const char *get_cmd_string(u8 cmd)
IWL_CMD(REPLY_ADD_STA);
IWL_CMD(REPLY_REMOVE_STA);
IWL_CMD(REPLY_REMOVE_ALL_STA);
IWL_CMD(REPLY_TXFIFO_FLUSH);
IWL_CMD(REPLY_WEPKEY);
IWL_CMD(REPLY_3945_RX);
IWL_CMD(REPLY_TX);