From 25a6572cc13ba2a3fefc02a63a077ff3664a1ca9 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Thu, 12 Jun 2008 09:47:07 +0800 Subject: [PATCH] iwlwifi: refactor tx aggregation response flow This patch refactors tx aggregation respnse flow and fixes bug revealed by tx_info to cb patch Signed-off-by: Tomas Winkler Signed-off-by: Emmanuel Grumbach Signed-off-by: Zhu Yi Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-4965.c | 23 +++++++-------------- drivers/net/wireless/iwlwifi/iwl-5000.c | 17 ++++++--------- drivers/net/wireless/iwlwifi/iwl-commands.h | 19 ++++------------- drivers/net/wireless/iwlwifi/iwl4965-base.c | 2 +- 4 files changed, 19 insertions(+), 42 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 4d47dd7acc..3f24e97973 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -3204,10 +3204,7 @@ static u16 iwl4965_build_addsta_hcmd(const struct iwl_addsta_cmd *cmd, u8 *data) static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp) { - __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status + - tx_resp->frame_count); - return le32_to_cpu(*scd_ssn) & MAX_SN; - + return le32_to_cpup(&tx_resp->u.status + tx_resp->frame_count) & MAX_SN; } /** @@ -3215,15 +3212,14 @@ static inline u32 iwl4965_get_scd_ssn(struct iwl4965_tx_resp *tx_resp) */ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, struct iwl_ht_agg *agg, - struct iwl4965_tx_resp_agg *tx_resp, - u16 start_idx) + struct iwl4965_tx_resp *tx_resp, + int txq_id, u16 start_idx) { u16 status; - struct agg_tx_status *frame_status = &tx_resp->status; + struct agg_tx_status *frame_status = tx_resp->u.agg_status; struct ieee80211_tx_info *info = NULL; struct ieee80211_hdr *hdr = NULL; - int i, sh; - int txq_id, idx; + int i, sh, idx; u16 seq; if (agg->wait_for_ba) @@ -3238,9 +3234,7 @@ static int iwl4965_tx_status_reply_tx(struct iwl_priv *priv, if (agg->frame_count == 1) { /* Only one frame was attempted; no block-ack will arrive */ status = le16_to_cpu(frame_status[0].status); - seq = le16_to_cpu(frame_status[0].sequence); - idx = SEQ_TO_INDEX(seq); - txq_id = SEQ_TO_QUEUE(seq); + idx = start_idx; /* FIXME: code repetition */ IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n", @@ -3341,7 +3335,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, struct iwl_tx_queue *txq = &priv->txq[txq_id]; struct ieee80211_tx_info *info; struct iwl4965_tx_resp *tx_resp = (void *)&pkt->u.raw[0]; - u32 status = le32_to_cpu(tx_resp->status); + u32 status = le32_to_cpu(tx_resp->u.status); int tid = MAX_TID_COUNT, sta_id = IWL_INVALID_STATION; u16 fc; struct ieee80211_hdr *hdr; @@ -3380,8 +3374,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv, agg = &priv->stations[sta_id].tid[tid].agg; - iwl4965_tx_status_reply_tx(priv, agg, - (struct iwl4965_tx_resp_agg *)tx_resp, index); + iwl4965_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) { /* TODO: send BAR */ diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index d3c0e10397..2a30306b7e 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -1126,23 +1126,20 @@ static void iwl5000_txq_set_sched(struct iwl_priv *priv, u32 mask) static inline u32 iwl5000_get_scd_ssn(struct iwl5000_tx_resp *tx_resp) { - __le32 *scd_ssn = (__le32 *)((u32 *)&tx_resp->status + - tx_resp->frame_count); - return le32_to_cpu(*scd_ssn) & MAX_SN; - + return le32_to_cpup((__le32*)&tx_resp->status + + tx_resp->frame_count) & MAX_SN; } static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv, struct iwl_ht_agg *agg, struct iwl5000_tx_resp *tx_resp, - u16 start_idx) + int txq_id, u16 start_idx) { u16 status; struct agg_tx_status *frame_status = &tx_resp->status; struct ieee80211_tx_info *info = NULL; struct ieee80211_hdr *hdr = NULL; - int i, sh; - int txq_id, idx; + int i, sh, idx; u16 seq; if (agg->wait_for_ba) @@ -1157,9 +1154,7 @@ static int iwl5000_tx_status_reply_tx(struct iwl_priv *priv, if (agg->frame_count == 1) { /* Only one frame was attempted; no block-ack will arrive */ status = le16_to_cpu(frame_status[0].status); - seq = le16_to_cpu(frame_status[0].sequence); - idx = SEQ_TO_INDEX(seq); - txq_id = SEQ_TO_QUEUE(seq); + idx = start_idx; /* FIXME: code repetition */ IWL_DEBUG_TX_REPLY("FrameCnt = %d, StartIdx=%d idx=%d\n", @@ -1296,7 +1291,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv, agg = &priv->stations[sta_id].tid[tid].agg; - iwl5000_tx_status_reply_tx(priv, agg, tx_resp, index); + iwl5000_tx_status_reply_tx(priv, agg, tx_resp, txq_id, index); if ((tx_resp->frame_count == 1) && !iwl_is_tx_success(status)) { /* TODO: send BAR */ diff --git a/drivers/net/wireless/iwlwifi/iwl-commands.h b/drivers/net/wireless/iwlwifi/iwl-commands.h index fb6f5ffb9f..9b64a39056 100644 --- a/drivers/net/wireless/iwlwifi/iwl-commands.h +++ b/drivers/net/wireless/iwlwifi/iwl-commands.h @@ -1481,21 +1481,10 @@ struct iwl4965_tx_resp { * table entry used for all frames in the new agg. * 31-16: Sequence # for this frame's Tx cmd (not SSN!) */ - __le32 status; /* TX status (for aggregation status of 1st frame) */ -} __attribute__ ((packed)); - -struct iwl4965_tx_resp_agg { - u8 frame_count; /* 1 no aggregation, >1 aggregation */ - u8 reserved1; - u8 failure_rts; - u8 failure_frame; - __le32 rate_n_flags; - __le16 wireless_media_time; - __le16 reserved3; - __le32 pa_power1; - __le32 pa_power2; - struct agg_tx_status status; /* TX status (for aggregation status */ - /* of 1st frame) */ + union { + __le32 status; + struct agg_tx_status agg_status[0]; /* for each agg frame */ + } u; } __attribute__ ((packed)); struct iwl5000_tx_resp { diff --git a/drivers/net/wireless/iwlwifi/iwl4965-base.c b/drivers/net/wireless/iwlwifi/iwl4965-base.c index 8e7860debd..510e40348a 100644 --- a/drivers/net/wireless/iwlwifi/iwl4965-base.c +++ b/drivers/net/wireless/iwlwifi/iwl4965-base.c @@ -1668,7 +1668,7 @@ static void iwl4965_rx_beacon_notif(struct iwl_priv *priv, IWL_DEBUG_RX("beacon status %x retries %d iss %d " "tsf %d %d rate %d\n", - le32_to_cpu(beacon->beacon_notify_hdr.status) & TX_STATUS_MSK, + le32_to_cpu(beacon->beacon_notify_hdr.u.status) & TX_STATUS_MSK, beacon->beacon_notify_hdr.failure_frame, le32_to_cpu(beacon->ibss_mgr_status), le32_to_cpu(beacon->high_tsf), -- 2.39.5