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iwlagn: simplify the iwl_device_cmd layout

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This simplifies both the transport layer and the upper layer.

Kill the union in the device command, which avoids the funny syntax
we had: cmd->cmd.payload.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Emmanuel Grumbach 2011-09-20 15:37:24 -07:00 committed by John W. Linville
parent 247c61d625
commit 132f98c2dc
5 changed files with 12 additions and 16 deletions
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2
drivers/net/wireless/iwlwifi/iwl-agn-tx.c
View File

@ -322,7 +322,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
goto drop_unlock_sta;
memset(dev_cmd, 0, sizeof(*dev_cmd));
tx_cmd = &dev_cmd->cmd.tx;
tx_cmd = (struct iwl_tx_cmd *) dev_cmd->payload;
/* Copy MAC header from skb into command buffer */
memcpy(tx_cmd->hdr, hdr, hdr_len);

2
drivers/net/wireless/iwlwifi/iwl-sta.c
View File

@ -127,7 +127,7 @@ int iwl_add_sta_callback(struct iwl_priv *priv, struct iwl_rx_mem_buffer *rxb,
{
struct iwl_rx_packet *pkt = rxb_addr(rxb);
struct iwl_addsta_cmd *addsta =
(struct iwl_addsta_cmd *)cmd->cmd.payload;
(struct iwl_addsta_cmd *) cmd->payload;
return iwl_process_add_sta_resp(priv, addsta, pkt);
}

12
drivers/net/wireless/iwlwifi/iwl-trans-pcie-tx.c
View File

@ -59,13 +59,15 @@ void iwl_trans_txq_update_byte_cnt_tbl(struct iwl_trans *trans,
u8 sta_id = 0;
u16 len = byte_cnt + IWL_TX_CRC_SIZE + IWL_TX_DELIMITER_SIZE;
__le16 bc_ent;
struct iwl_tx_cmd *tx_cmd =
(struct iwl_tx_cmd *) txq->cmd[txq->q.write_ptr]->payload;
scd_bc_tbl = trans_pcie->scd_bc_tbls.addr;
WARN_ON(len > 0xFFF || write_ptr >= TFD_QUEUE_SIZE_MAX);
sta_id = txq->cmd[txq->q.write_ptr]->cmd.tx.sta_id;
sec_ctl = txq->cmd[txq->q.write_ptr]->cmd.tx.sec_ctl;
sta_id = tx_cmd->sta_id;
sec_ctl = tx_cmd->sec_ctl;
switch (sec_ctl & TX_CMD_SEC_MSK) {
case TX_CMD_SEC_CCM:
@ -353,11 +355,13 @@ static void iwlagn_txq_inval_byte_cnt_tbl(struct iwl_trans *trans,
int read_ptr = txq->q.read_ptr;
u8 sta_id = 0;
__le16 bc_ent;
struct iwl_tx_cmd *tx_cmd =
(struct iwl_tx_cmd *) txq->cmd[txq->q.read_ptr]->payload;
WARN_ON(read_ptr >= TFD_QUEUE_SIZE_MAX);
if (txq_id != trans->shrd->cmd_queue)
sta_id = txq->cmd[read_ptr]->cmd.tx.sta_id;
sta_id = tx_cmd->sta_id;
bc_ent = cpu_to_le16(1 | (sta_id << 12));
scd_bc_tbl[txq_id].tfd_offset[read_ptr] = bc_ent;
@ -773,7 +777,7 @@ static int iwl_enqueue_hcmd(struct iwl_trans *trans, struct iwl_host_cmd *cmd)
/* and copy the data that needs to be copied */
cmd_dest = &out_cmd->cmd.payload[0];
cmd_dest = out_cmd->payload;
for (i = 0; i < IWL_MAX_CMD_TFDS; i++) {
if (!cmd->len[i])
continue;

2
drivers/net/wireless/iwlwifi/iwl-trans-pcie.c
View File

@ -1043,7 +1043,7 @@ static int iwl_trans_pcie_tx(struct iwl_trans *trans, struct sk_buff *skb,
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
struct iwl_tx_cmd *tx_cmd = &dev_cmd->cmd.tx;
struct iwl_tx_cmd *tx_cmd = (struct iwl_tx_cmd *) dev_cmd->payload;
struct iwl_cmd_meta *out_meta;
struct iwl_tx_queue *txq;
struct iwl_queue *q;

10
drivers/net/wireless/iwlwifi/iwl-trans.h
View File

@ -97,15 +97,7 @@ enum {
*/
struct iwl_device_cmd {
struct iwl_cmd_header hdr; /* uCode API */
union {
u32 flags;
u8 val8;
u16 val16;
u32 val32;
struct iwl_tx_cmd tx;
struct iwl6000_channel_switch_cmd chswitch;
u8 payload[DEF_CMD_PAYLOAD_SIZE];
} __packed cmd;
u8 payload[DEF_CMD_PAYLOAD_SIZE];
} __packed;
#define TFD_MAX_PAYLOAD_SIZE (sizeof(struct iwl_device_cmd))