diff options
| -rw-r--r-- | drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 103 |
1 files changed, 69 insertions, 34 deletions
diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c index 400deea9c6a9..8643bb3c1802 100644 --- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c +++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c @@ -5093,53 +5093,88 @@ static void rtl8723bu_handle_c2h(struct rtl8xxxu_priv *priv, int rtl8xxxu_parse_rxdesc16(struct rtl8xxxu_priv *priv, struct sk_buff *skb) { struct ieee80211_hw *hw = priv->hw; - struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb); - struct rtl8xxxu_rxdesc16 *rx_desc = - (struct rtl8xxxu_rxdesc16 *)skb->data; + struct ieee80211_rx_status *rx_status; + struct rtl8xxxu_rxdesc16 *rx_desc; struct rtl8723au_phy_stats *phy_stats; - __le32 *_rx_desc_le = (__le32 *)skb->data; - u32 *_rx_desc = (u32 *)skb->data; + struct sk_buff *next_skb = NULL; + __le32 *_rx_desc_le; + u32 *_rx_desc; int drvinfo_sz, desc_shift; - int i; + int i, pkt_cnt, pkt_len, urb_len, pkt_offset; - for (i = 0; i < (sizeof(struct rtl8xxxu_rxdesc16) / sizeof(u32)); i++) - _rx_desc[i] = le32_to_cpu(_rx_desc_le[i]); + urb_len = skb->len; + pkt_cnt = 0; - memset(rx_status, 0, sizeof(struct ieee80211_rx_status)); + do { + rx_desc = (struct rtl8xxxu_rxdesc16 *)skb->data; + _rx_desc_le = (__le32 *)skb->data; + _rx_desc = (u32 *)skb->data; - skb_pull(skb, sizeof(struct rtl8xxxu_rxdesc16)); + for (i = 0; + i < (sizeof(struct rtl8xxxu_rxdesc16) / sizeof(u32)); i++) + _rx_desc[i] = le32_to_cpu(_rx_desc_le[i]); - phy_stats = (struct rtl8723au_phy_stats *)skb->data; + /* + * Only read pkt_cnt from the header if we're parsing the + * first packet + */ + if (!pkt_cnt) + pkt_cnt = rx_desc->pkt_cnt; + pkt_len = rx_desc->pktlen; - drvinfo_sz = rx_desc->drvinfo_sz * 8; - desc_shift = rx_desc->shift; - skb_pull(skb, drvinfo_sz + desc_shift); + drvinfo_sz = rx_desc->drvinfo_sz * 8; + desc_shift = rx_desc->shift; + pkt_offset = roundup(pkt_len + drvinfo_sz + desc_shift + + sizeof(struct rtl8xxxu_rxdesc16), 128); - if (rx_desc->phy_stats) - rtl8xxxu_rx_parse_phystats(priv, rx_status, phy_stats, - rx_desc->rxmcs); + if (pkt_cnt > 1) + next_skb = skb_clone(skb, GFP_ATOMIC); - rx_status->mactime = le32_to_cpu(rx_desc->tsfl); - rx_status->flag |= RX_FLAG_MACTIME_START; + rx_status = IEEE80211_SKB_RXCB(skb); + memset(rx_status, 0, sizeof(struct ieee80211_rx_status)); - if (!rx_desc->swdec) - rx_status->flag |= RX_FLAG_DECRYPTED; - if (rx_desc->crc32) - rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; - if (rx_desc->bw) - rx_status->flag |= RX_FLAG_40MHZ; + skb_pull(skb, sizeof(struct rtl8xxxu_rxdesc16)); - if (rx_desc->rxht) { - rx_status->flag |= RX_FLAG_HT; - rx_status->rate_idx = rx_desc->rxmcs - DESC_RATE_MCS0; - } else { - rx_status->rate_idx = rx_desc->rxmcs; - } + phy_stats = (struct rtl8723au_phy_stats *)skb->data; - rx_status->freq = hw->conf.chandef.chan->center_freq; - rx_status->band = hw->conf.chandef.chan->band; + skb_pull(skb, drvinfo_sz + desc_shift); + + skb_trim(skb, pkt_len); + + if (rx_desc->phy_stats) + rtl8xxxu_rx_parse_phystats(priv, rx_status, phy_stats, + rx_desc->rxmcs); + + rx_status->mactime = le32_to_cpu(rx_desc->tsfl); + rx_status->flag |= RX_FLAG_MACTIME_START; + + if (!rx_desc->swdec) + rx_status->flag |= RX_FLAG_DECRYPTED; + if (rx_desc->crc32) + rx_status->flag |= RX_FLAG_FAILED_FCS_CRC; + if (rx_desc->bw) + rx_status->flag |= RX_FLAG_40MHZ; + + if (rx_desc->rxht) { + rx_status->flag |= RX_FLAG_HT; + rx_status->rate_idx = rx_desc->rxmcs - DESC_RATE_MCS0; + } else { + rx_status->rate_idx = rx_desc->rxmcs; + } + + rx_status->freq = hw->conf.chandef.chan->center_freq; + rx_status->band = hw->conf.chandef.chan->band; + + ieee80211_rx_irqsafe(hw, skb); + + skb = next_skb; + if (skb) + skb_pull(next_skb, pkt_offset); + + pkt_cnt--; + urb_len -= pkt_offset; + } while (skb && urb_len > 0 && pkt_cnt > 0); - ieee80211_rx_irqsafe(hw, skb); return RX_TYPE_DATA_PKT; } |