#include "iwl-agn.h"
#include "iwl-trans.h"
-/*
- * mac80211 queues, ACs, hardware queues, FIFOs.
- *
- * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
- *
- * Mac80211 uses the following numbers, which we get as from it
- * by way of skb_get_queue_mapping(skb):
- *
- * VO 0
- * VI 1
- * BE 2
- * BK 3
- *
- *
- * Regular (not A-MPDU) frames are put into hardware queues corresponding
- * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
- * own queue per aggregation session (RA/TID combination), such queues are
- * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
- * order to map frames to the right queue, we also need an AC->hw queue
- * mapping. This is implemented here.
- *
- * Due to the way hw queues are set up (by the hw specific modules like
- * iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity
- * mapping.
- */
-
-static const u8 tid_to_ac[] = {
- IEEE80211_AC_BE,
- IEEE80211_AC_BK,
- IEEE80211_AC_BK,
- IEEE80211_AC_BE,
- IEEE80211_AC_VI,
- IEEE80211_AC_VI,
- IEEE80211_AC_VO,
- IEEE80211_AC_VO
-};
-
static inline int get_ac_from_tid(u16 tid)
{
if (likely(tid < ARRAY_SIZE(tid_to_ac)))
return -EINVAL;
}
-static inline int get_fifo_from_tid(struct iwl_rxon_context *ctx, u16 tid)
-{
- if (likely(tid < ARRAY_SIZE(tid_to_ac)))
- return ctx->ac_to_fifo[tid_to_ac[tid]];
-
- /* no support for TIDs 8-15 yet */
- return -EINVAL;
-}
-
static int iwlagn_txq_agg_enable(struct iwl_priv *priv, int txq_id, int sta_id,
int tid)
{
struct ieee80211_sta *sta, u16 tid, u16 *ssn)
{
int sta_id;
- int tx_fifo;
int txq_id;
int ret;
unsigned long flags;
struct iwl_tid_data *tid_data;
- tx_fifo = get_fifo_from_tid(iwl_rxon_ctx_from_vif(vif), tid);
- if (unlikely(tx_fifo < 0))
- return tx_fifo;
-
IWL_DEBUG_HT(priv, "TX AGG request on ra = %pM tid = %d\n",
sta->addr, tid);
tid_data = &priv->shrd->tid_data[sta_id][tid];
*ssn = SEQ_TO_SN(tid_data->seq_number);
tid_data->agg.txq_id = txq_id;
- tid_data->agg.tx_fifo = tx_fifo;
iwl_set_swq_id(&priv->txq[txq_id], get_ac_from_tid(tid), txq_id);
spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
struct ieee80211_sta *sta, u16 tid)
{
- int tx_fifo_id, txq_id, sta_id, ssn;
+ int txq_id, sta_id, ssn;
struct iwl_tid_data *tid_data;
int write_ptr, read_ptr;
unsigned long flags;
- tx_fifo_id = get_fifo_from_tid(iwl_rxon_ctx_from_vif(vif), tid);
- if (unlikely(tx_fifo_id < 0))
- return tx_fifo_id;
-
sta_id = iwl_sta_id(sta);
if (sta_id == IWL_INVALID_STATION) {
* to deactivate the uCode queue, just return "success" to allow
* mac80211 to clean up it own data.
*/
- iwl_trans_txq_agg_disable(trans(priv), txq_id, ssn, tx_fifo_id);
+ iwl_trans_txq_agg_disable(trans(priv), txq_id);
spin_unlock_irqrestore(&priv->shrd->lock, flags);
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
/* aggregated HW queue */
if ((txq_id == tid_data->agg.txq_id) &&
(q->read_ptr == q->write_ptr)) {
- u16 ssn = SEQ_TO_SN(tid_data->seq_number);
- int tx_fifo = get_fifo_from_tid(ctx, tid);
IWL_DEBUG_HT(priv, "HW queue empty: continue DELBA flow\n");
- iwl_trans_txq_agg_disable(trans(priv), txq_id,
- ssn, tx_fifo);
+ iwl_trans_txq_agg_disable(trans(priv), txq_id);
tid_data->agg.state = IWL_AGG_OFF;
ieee80211_stop_tx_ba_cb_irqsafe(ctx->vif, addr, tid);
}
struct iwl_priv *priv = hw->priv;
int ret = -EINVAL;
struct iwl_station_priv *sta_priv = (void *) sta->drv_priv;
+ struct iwl_rxon_context *ctx = iwl_rxon_ctx_from_vif(vif);
IWL_DEBUG_HT(priv, "A-MPDU action on addr %pM tid %d\n",
sta->addr, tid);
case IEEE80211_AMPDU_TX_OPERATIONAL:
buf_size = min_t(int, buf_size, LINK_QUAL_AGG_FRAME_LIMIT_DEF);
- iwl_trans_txq_agg_setup(trans(priv), iwl_sta_id(sta), tid,
- buf_size);
+ iwl_trans_txq_agg_setup(trans(priv), ctx->ctxid, iwl_sta_id(sta),
+ tid, buf_size);
/*
* If the limit is 0, then it wasn't initialised yet,
bool triggered, aborted;
};
-enum iwl_rxon_context_id {
- IWL_RXON_CTX_BSS,
- IWL_RXON_CTX_PAN,
-
- NUM_IWL_RXON_CTX
-};
-
struct iwl_rxon_context {
struct ieee80211_vif *vif;
#include <linux/spinlock.h>
#include <linux/mutex.h>
#include <linux/gfp.h>
+#include <net/mac80211.h>
#include "iwl-commands.h"
#define IWL_EMPTYING_HW_QUEUE_ADDBA 2
#define IWL_EMPTYING_HW_QUEUE_DELBA 3
u8 state;
- u8 tx_fifo;
};
struct iwl_tid_data {
#define rxb_addr(r) page_address(r->page)
+/*
+ * mac80211 queues, ACs, hardware queues, FIFOs.
+ *
+ * Cf. http://wireless.kernel.org/en/developers/Documentation/mac80211/queues
+ *
+ * Mac80211 uses the following numbers, which we get as from it
+ * by way of skb_get_queue_mapping(skb):
+ *
+ * VO 0
+ * VI 1
+ * BE 2
+ * BK 3
+ *
+ *
+ * Regular (not A-MPDU) frames are put into hardware queues corresponding
+ * to the FIFOs, see comments in iwl-prph.h. Aggregated frames get their
+ * own queue per aggregation session (RA/TID combination), such queues are
+ * set up to map into FIFOs too, for which we need an AC->FIFO mapping. In
+ * order to map frames to the right queue, we also need an AC->hw queue
+ * mapping. This is implemented here.
+ *
+ * Due to the way hw queues are set up (by the hw specific modules like
+ * iwl-4965.c, iwl-5000.c etc.), the AC->hw queue mapping is the identity
+ * mapping.
+ */
+
+static const u8 tid_to_ac[] = {
+ IEEE80211_AC_BE,
+ IEEE80211_AC_BK,
+ IEEE80211_AC_BK,
+ IEEE80211_AC_BE,
+ IEEE80211_AC_VI,
+ IEEE80211_AC_VI,
+ IEEE80211_AC_VO,
+ IEEE80211_AC_VO
+};
+
+enum iwl_rxon_context_id {
+ IWL_RXON_CTX_BSS,
+ IWL_RXON_CTX_PAN,
+
+ NUM_IWL_RXON_CTX
+};
+
#ifdef CONFIG_PM
int iwl_suspend(struct iwl_priv *priv);
int iwl_resume(struct iwl_priv *priv);
void iwl_trans_txq_update_byte_cnt_tbl(struct iwl_trans *trans,
struct iwl_tx_queue *txq,
u16 byte_cnt);
-int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo);
+int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id);
void iwl_trans_set_wr_ptrs(struct iwl_trans *trans, int txq_id, u32 index);
void iwl_trans_tx_queue_set_status(struct iwl_priv *priv,
struct iwl_tx_queue *txq,
int tx_fifo_id, int scd_retry);
-void iwl_trans_pcie_txq_agg_setup(struct iwl_priv *priv, int sta_id, int tid,
- int frame_limit);
+void iwl_trans_pcie_txq_agg_setup(struct iwl_priv *priv,
+ enum iwl_rxon_context_id ctx,
+ int sta_id, int tid, int frame_limit);
void iwlagn_txq_free_tfd(struct iwl_trans *trans, struct iwl_tx_queue *txq,
int index);
void iwl_tx_queue_reclaim(struct iwl_trans *trans, int txq_id, int index,
scd_retry ? "BA" : "AC/CMD", txq_id, tx_fifo_id);
}
-void iwl_trans_pcie_txq_agg_setup(struct iwl_priv *priv, int sta_id, int tid,
- int frame_limit)
+static inline int get_fifo_from_tid(struct iwl_rxon_context *ctx, u16 tid)
+{
+ if (likely(tid < ARRAY_SIZE(tid_to_ac)))
+ return ctx->ac_to_fifo[tid_to_ac[tid]];
+
+ /* no support for TIDs 8-15 yet */
+ return -EINVAL;
+}
+
+void iwl_trans_pcie_txq_agg_setup(struct iwl_priv *priv,
+ enum iwl_rxon_context_id ctx, int sta_id,
+ int tid, int frame_limit)
{
int tx_fifo, txq_id, ssn_idx;
u16 ra_tid;
if (WARN_ON(tid >= IWL_MAX_TID_COUNT))
return;
+ tx_fifo = get_fifo_from_tid(&priv->contexts[ctx], tid);
+ if (WARN_ON(tx_fifo < 0)) {
+ IWL_ERR(trans, "txq_agg_setup, bad fifo: %d\n", tx_fifo);
+ return;
+ }
+
spin_lock_irqsave(&priv->shrd->sta_lock, flags);
tid_data = &priv->shrd->tid_data[sta_id][tid];
ssn_idx = SEQ_TO_SN(tid_data->seq_number);
txq_id = tid_data->agg.txq_id;
- tx_fifo = tid_data->agg.tx_fifo;
spin_unlock_irqrestore(&priv->shrd->sta_lock, flags);
ra_tid = BUILD_RAxTID(sta_id, tid);
spin_unlock_irqrestore(&priv->shrd->lock, flags);
}
-int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo)
+int iwl_trans_pcie_txq_agg_disable(struct iwl_priv *priv, u16 txq_id)
{
struct iwl_trans *trans = trans(priv);
if ((IWLAGN_FIRST_AMPDU_QUEUE > txq_id) ||
iwl_clear_bits_prph(bus(priv), SCD_AGGR_SEL, (1 << txq_id));
- priv->txq[txq_id].q.read_ptr = (ssn_idx & 0xff);
- priv->txq[txq_id].q.write_ptr = (ssn_idx & 0xff);
+ priv->txq[txq_id].q.read_ptr = 0;
+ priv->txq[txq_id].q.write_ptr = 0;
/* supposes that ssn_idx is valid (!= 0xFFF) */
- iwl_trans_set_wr_ptrs(trans, txq_id, ssn_idx);
+ iwl_trans_set_wr_ptrs(trans, txq_id, 0);
iwl_clear_bits_prph(bus(priv), SCD_INTERRUPT_MASK, (1 << txq_id));
iwl_txq_ctx_deactivate(priv, txq_id);
- iwl_trans_tx_queue_set_status(priv, &priv->txq[txq_id], tx_fifo, 0);
+ iwl_trans_tx_queue_set_status(priv, &priv->txq[txq_id], 0, 0);
return 0;
}
void (*reclaim)(struct iwl_trans *trans, int txq_id, int ssn,
u32 status, struct sk_buff_head *skbs);
- int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo);
- void (*txq_agg_setup)(struct iwl_priv *priv, int sta_id, int tid,
- int frame_limit);
+ int (*txq_agg_disable)(struct iwl_priv *priv, u16 txq_id);
+ void (*txq_agg_setup)(struct iwl_priv *priv,
+ enum iwl_rxon_context_id ctx, int sta_id,
+ int tid, int frame_limit);
void (*kick_nic)(struct iwl_trans *trans);
trans->ops->reclaim(trans, txq_id, ssn, status, skbs);
}
-static inline int iwl_trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id,
- u16 ssn_idx, u8 tx_fifo)
+static inline int iwl_trans_txq_agg_disable(struct iwl_trans *trans, u16 txq_id)
{
- return trans->ops->txq_agg_disable(priv(trans), txq_id,
- ssn_idx, tx_fifo);
+ return trans->ops->txq_agg_disable(priv(trans), txq_id);
}
-static inline void iwl_trans_txq_agg_setup(struct iwl_trans *trans, int sta_id,
- int tid, int frame_limit)
+static inline void iwl_trans_txq_agg_setup(struct iwl_trans *trans,
+ enum iwl_rxon_context_id ctx,
+ int sta_id, int tid,
+ int frame_limit)
{
- trans->ops->txq_agg_setup(priv(trans), sta_id, tid, frame_limit);
+ trans->ops->txq_agg_setup(priv(trans), ctx, sta_id, tid, frame_limit);
}
static inline void iwl_trans_kick_nic(struct iwl_trans *trans)
git.samba.org / sfrench / cifs-2.6.git / commitdiff