diff options
Diffstat (limited to 'drivers/net/wireless/rtl818x/rtl8180/dev.c')
| -rw-r--r-- | drivers/net/wireless/rtl818x/rtl8180/dev.c | 58 |
1 files changed, 43 insertions, 15 deletions
diff --git a/drivers/net/wireless/rtl818x/rtl8180/dev.c b/drivers/net/wireless/rtl818x/rtl8180/dev.c index 091eb2eb1a3c..767e1048f336 100644 --- a/drivers/net/wireless/rtl818x/rtl8180/dev.c +++ b/drivers/net/wireless/rtl818x/rtl8180/dev.c @@ -85,6 +85,30 @@ static const struct ieee80211_channel rtl818x_channels[] = { { .center_freq = 2484 }, }; +/* Queues for rtl8180/rtl8185 cards + * + * name | reg | prio + * BC | 7 | 3 + * HI | 6 | 0 + * NO | 5 | 1 + * LO | 4 | 2 + * + * The complete map for DMA kick reg using all queue is: + * static const int rtl8180_queues_map[RTL8180_NR_TX_QUEUES] = {6, 5, 4, 7}; + * + * .. but .. Because the mac80211 needs at least 4 queues for QoS or + * otherwise QoS can't be done, we use just one. + * Beacon queue could be used, but this is not finished yet. + * Actual map is: + * + * name | reg | prio + * BC | 7 | 1 <- currently not used yet. + * HI | 6 | x <- not used + * NO | 5 | x <- not used + * LO | 4 | 0 <- used + */ + +static const int rtl8180_queues_map[RTL8180_NR_TX_QUEUES] = {4, 7}; void rtl8180_write_phy(struct ieee80211_hw *dev, u8 addr, u32 data) { @@ -235,12 +259,6 @@ static irqreturn_t rtl8180_interrupt(int irq, void *dev_id) rtl818x_iowrite16(priv, &priv->map->INT_STATUS, reg); if (reg & (RTL818X_INT_TXB_OK | RTL818X_INT_TXB_ERR)) - rtl8180_handle_tx(dev, 3); - - if (reg & (RTL818X_INT_TXH_OK | RTL818X_INT_TXH_ERR)) - rtl8180_handle_tx(dev, 2); - - if (reg & (RTL818X_INT_TXN_OK | RTL818X_INT_TXN_ERR)) rtl8180_handle_tx(dev, 1); if (reg & (RTL818X_INT_TXL_OK | RTL818X_INT_TXL_ERR)) @@ -264,7 +282,7 @@ static void rtl8180_tx(struct ieee80211_hw *dev, struct rtl8180_tx_ring *ring; struct rtl8180_tx_desc *entry; unsigned long flags; - unsigned int idx, prio; + unsigned int idx, prio, hw_prio; dma_addr_t mapping; u32 tx_flags; u8 rc_flags; @@ -354,7 +372,11 @@ static void rtl8180_tx(struct ieee80211_hw *dev, spin_unlock_irqrestore(&priv->lock, flags); - rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, (1 << (prio + 4))); + hw_prio = rtl8180_queues_map[prio]; + + rtl818x_iowrite8(priv, &priv->map->TX_DMA_POLLING, + (1 << hw_prio) | /* ring to poll */ + (1<<1) | (1<<2));/* stopped rings */ } void rtl8180_set_anaparam(struct rtl8180_priv *priv, u32 anaparam) @@ -447,9 +469,7 @@ static int rtl8180_init_hw(struct ieee80211_hw *dev) rtl8180_set_anaparam(priv, priv->anaparam); rtl818x_iowrite32(priv, &priv->map->RDSAR, priv->rx_ring_dma); - rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[3].dma); - rtl818x_iowrite32(priv, &priv->map->THPDA, priv->tx_ring[2].dma); - rtl818x_iowrite32(priv, &priv->map->TNPDA, priv->tx_ring[1].dma); + rtl818x_iowrite32(priv, &priv->map->TBDA, priv->tx_ring[1].dma); rtl818x_iowrite32(priv, &priv->map->TLPDA, priv->tx_ring[0].dma); /* TODO: necessary? specs indicate not */ @@ -627,7 +647,7 @@ static int rtl8180_start(struct ieee80211_hw *dev) if (ret) return ret; - for (i = 0; i < 4; i++) + for (i = 0; i < (dev->queues + 1); i++) if ((ret = rtl8180_init_tx_ring(dev, i, 16))) goto err_free_rings; @@ -722,7 +742,7 @@ static int rtl8180_start(struct ieee80211_hw *dev) err_free_rings: rtl8180_free_rx_ring(dev); - for (i = 0; i < 4; i++) + for (i = 0; i < (dev->queues + 1); i++) if (priv->tx_ring[i].desc) rtl8180_free_tx_ring(dev, i); @@ -752,7 +772,7 @@ static void rtl8180_stop(struct ieee80211_hw *dev) free_irq(priv->pdev->irq, dev); rtl8180_free_rx_ring(dev); - for (i = 0; i < 4; i++) + for (i = 0; i < (dev->queues + 1); i++) rtl8180_free_tx_ring(dev, i); } @@ -1215,7 +1235,6 @@ static int rtl8180_probe(struct pci_dev *pdev, dev->vif_data_size = sizeof(struct rtl8180_vif); dev->wiphy->interface_modes = BIT(NL80211_IFTYPE_STATION) | BIT(NL80211_IFTYPE_ADHOC); - dev->queues = 1; dev->max_signal = 65; reg = rtl818x_ioread32(priv, &priv->map->TX_CONF); @@ -1246,6 +1265,15 @@ static int rtl8180_probe(struct pci_dev *pdev, goto err_iounmap; } + /* we declare to MAC80211 all the queues except for beacon queue + * that will be eventually handled by DRV. + * TX rings are arranged in such a way that lower is the IDX, + * higher is the priority, in order to achieve direct mapping + * with mac80211, however the beacon queue is an exception and it + * is mapped on the highst tx ring IDX. + */ + dev->queues = RTL8180_NR_TX_QUEUES - 1; + if (priv->chip_family != RTL818X_CHIP_FAMILY_RTL8180) { priv->band.n_bitrates = ARRAY_SIZE(rtl818x_rates); pci_try_set_mwi(pdev); |