diff options
Diffstat (limited to 'drivers/net/wireless/mwl8k.c')
| -rw-r--r-- | drivers/net/wireless/mwl8k.c | 51 |
1 files changed, 38 insertions, 13 deletions
diff --git a/drivers/net/wireless/mwl8k.c b/drivers/net/wireless/mwl8k.c index 36952274950..8fefed2342d 100644 --- a/drivers/net/wireless/mwl8k.c +++ b/drivers/net/wireless/mwl8k.c @@ -191,6 +191,7 @@ struct mwl8k_priv { struct mwl8k_rx_queue rxq[MWL8K_RX_QUEUES]; struct mwl8k_tx_queue txq[MWL8K_TX_QUEUES]; + u32 txq_offset[MWL8K_TX_QUEUES]; bool radio_on; bool radio_short_preamble; @@ -1126,6 +1127,9 @@ static void mwl8k_rxq_deinit(struct ieee80211_hw *hw, int index) struct mwl8k_rx_queue *rxq = priv->rxq + index; int i; + if (rxq->rxd == NULL) + return; + for (i = 0; i < MWL8K_RX_DESCS; i++) { if (rxq->buf[i].skb != NULL) { pci_unmap_single(priv->pdev, @@ -1560,6 +1564,9 @@ static void mwl8k_txq_deinit(struct ieee80211_hw *hw, int index) struct mwl8k_priv *priv = hw->priv; struct mwl8k_tx_queue *txq = priv->txq + index; + if (txq->txd == NULL) + return; + mwl8k_txq_reclaim(hw, index, INT_MAX, 1); kfree(txq->skb); @@ -2058,23 +2065,16 @@ static int mwl8k_cmd_get_hw_spec_ap(struct ieee80211_hw *hw) priv->ap_macids_supported = 0x000000ff; priv->sta_macids_supported = 0x00000000; - off = le32_to_cpu(cmd->wcbbase0) & 0xffff; - iowrite32(priv->txq[0].txd_dma, priv->sram + off); - off = le32_to_cpu(cmd->rxwrptr) & 0xffff; iowrite32(priv->rxq[0].rxd_dma, priv->sram + off); off = le32_to_cpu(cmd->rxrdptr) & 0xffff; iowrite32(priv->rxq[0].rxd_dma, priv->sram + off); - off = le32_to_cpu(cmd->wcbbase1) & 0xffff; - iowrite32(priv->txq[1].txd_dma, priv->sram + off); - - off = le32_to_cpu(cmd->wcbbase2) & 0xffff; - iowrite32(priv->txq[2].txd_dma, priv->sram + off); - - off = le32_to_cpu(cmd->wcbbase3) & 0xffff; - iowrite32(priv->txq[3].txd_dma, priv->sram + off); + priv->txq_offset[0] = le32_to_cpu(cmd->wcbbase0) & 0xffff; + priv->txq_offset[1] = le32_to_cpu(cmd->wcbbase1) & 0xffff; + priv->txq_offset[2] = le32_to_cpu(cmd->wcbbase2) & 0xffff; + priv->txq_offset[3] = le32_to_cpu(cmd->wcbbase3) & 0xffff; } done: @@ -4600,6 +4600,23 @@ static int mwl8k_init_firmware(struct ieee80211_hw *hw, char *fw_image, return rc; } +static int mwl8k_init_txqs(struct ieee80211_hw *hw) +{ + struct mwl8k_priv *priv = hw->priv; + int rc = 0; + int i; + + for (i = 0; i < MWL8K_TX_QUEUES; i++) { + rc = mwl8k_txq_init(hw, i); + if (rc) + break; + if (priv->ap_fw) + iowrite32(priv->txq[i].txd_dma, + priv->sram + priv->txq_offset[i]); + } + return rc; +} + /* initialize hw after successfully loading a firmware image */ static int mwl8k_probe_hw(struct ieee80211_hw *hw) { @@ -4627,8 +4644,14 @@ static int mwl8k_probe_hw(struct ieee80211_hw *hw) goto err_stop_firmware; rxq_refill(hw, 0, INT_MAX); - for (i = 0; i < MWL8K_TX_QUEUES; i++) { - rc = mwl8k_txq_init(hw, i); + /* For the sta firmware, we need to know the dma addresses of tx queues + * before sending MWL8K_CMD_GET_HW_SPEC. So we must initialize them + * prior to issuing this command. But for the AP case, we learn the + * total number of queues from the result CMD_GET_HW_SPEC, so for this + * case we must initialize the tx queues after. + */ + if (!priv->ap_fw) { + rc = mwl8k_init_txqs(hw); if (rc) goto err_free_queues; } @@ -4657,6 +4680,8 @@ static int mwl8k_probe_hw(struct ieee80211_hw *hw) if (priv->ap_fw) { rc = mwl8k_cmd_get_hw_spec_ap(hw); if (!rc) + rc = mwl8k_init_txqs(hw); + if (!rc) rc = mwl8k_cmd_set_hw_spec(hw); } else { rc = mwl8k_cmd_get_hw_spec_sta(hw); |