diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/net/wireless/mwifiex/11n_aggr.c | 125 | ||||
| -rw-r--r-- | drivers/net/wireless/mwifiex/sta_rx.c | 22 |
2 files changed, 20 insertions, 127 deletions
diff --git a/drivers/net/wireless/mwifiex/11n_aggr.c b/drivers/net/wireless/mwifiex/11n_aggr.c index 2b2cca5e6d0f..d3d5e0853c45 100644 --- a/drivers/net/wireless/mwifiex/11n_aggr.c +++ b/drivers/net/wireless/mwifiex/11n_aggr.c @@ -136,131 +136,6 @@ mwifiex_11n_form_amsdu_txpd(struct mwifiex_private *priv, } /* - * Counts the number of subframes in an aggregate packet. - * - * This function parses an aggregate packet buffer, looking for - * subframes and counting the number of such subframe found. The - * function automatically skips the DA/SA fields at the beginning - * of each subframe and padding at the end. - */ -static int -mwifiex_11n_get_num_aggr_pkts(u8 *data, int total_pkt_len) -{ - int pkt_count = 0, pkt_len, pad; - - while (total_pkt_len > 0) { - /* Length will be in network format, change it to host */ - pkt_len = ntohs((*(__be16 *)(data + 2 * ETH_ALEN))); - pad = (((pkt_len + sizeof(struct ethhdr)) & 3)) ? - (4 - ((pkt_len + sizeof(struct ethhdr)) & 3)) : 0; - data += pkt_len + pad + sizeof(struct ethhdr); - total_pkt_len -= pkt_len + pad + sizeof(struct ethhdr); - ++pkt_count; - } - - return pkt_count; -} - -/* - * De-aggregate received packets. - * - * This function parses the received aggregate buffer, extracts each subframe, - * strips off the SNAP header from them and sends the data portion for further - * processing. - * - * Each subframe body is copied onto a separate buffer, which are freed by - * upper layer after processing. The function also performs sanity tests on - * the received buffer. - */ -int mwifiex_11n_deaggregate_pkt(struct mwifiex_private *priv, - struct sk_buff *skb) -{ - u16 pkt_len; - int total_pkt_len; - u8 *data; - int pad; - struct mwifiex_rxinfo *rx_info = MWIFIEX_SKB_RXCB(skb); - struct rxpd *local_rx_pd = (struct rxpd *) skb->data; - struct sk_buff *skb_daggr; - struct mwifiex_rxinfo *rx_info_daggr; - int ret = -1; - struct rx_packet_hdr *rx_pkt_hdr; - struct mwifiex_adapter *adapter = priv->adapter; - u8 rfc1042_eth_hdr[ETH_ALEN] = { 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00}; - - data = (u8 *) (local_rx_pd + local_rx_pd->rx_pkt_offset); - total_pkt_len = local_rx_pd->rx_pkt_length; - - /* Sanity test */ - if (total_pkt_len > MWIFIEX_RX_DATA_BUF_SIZE) { - dev_err(adapter->dev, "total pkt len greater than buffer" - " size %d\n", total_pkt_len); - return -1; - } - - rx_info->use_count = mwifiex_11n_get_num_aggr_pkts(data, total_pkt_len); - - while (total_pkt_len > 0) { - rx_pkt_hdr = (struct rx_packet_hdr *) data; - /* Length will be in network format, change it to host */ - pkt_len = ntohs((*(__be16 *) (data + 2 * ETH_ALEN))); - if (pkt_len > total_pkt_len) { - dev_err(adapter->dev, "pkt_len %d > total_pkt_len %d\n", - total_pkt_len, pkt_len); - break; - } - - pad = (((pkt_len + sizeof(struct ethhdr)) & 3)) ? - (4 - ((pkt_len + sizeof(struct ethhdr)) & 3)) : 0; - - total_pkt_len -= pkt_len + pad + sizeof(struct ethhdr); - - if (memcmp(&rx_pkt_hdr->rfc1042_hdr, - rfc1042_eth_hdr, sizeof(rfc1042_eth_hdr)) == 0) { - memmove(data + LLC_SNAP_LEN, data, 2 * ETH_ALEN); - data += LLC_SNAP_LEN; - pkt_len += sizeof(struct ethhdr) - LLC_SNAP_LEN; - } else { - *(u16 *) (data + 2 * ETH_ALEN) = (u16) 0; - pkt_len += sizeof(struct ethhdr); - } - - skb_daggr = dev_alloc_skb(pkt_len); - if (!skb_daggr) { - dev_err(adapter->dev, "%s: failed to alloc skb_daggr\n", - __func__); - return -1; - } - rx_info_daggr = MWIFIEX_SKB_RXCB(skb_daggr); - - rx_info_daggr->bss_index = rx_info->bss_index; - skb_daggr->tstamp = skb->tstamp; - rx_info_daggr->parent = skb; - skb_daggr->priority = skb->priority; - skb_put(skb_daggr, pkt_len); - memcpy(skb_daggr->data, data, pkt_len); - - ret = mwifiex_recv_packet(adapter, skb_daggr); - - switch (ret) { - case -EINPROGRESS: - break; - case -1: - dev_err(adapter->dev, "deaggr: host_to_card failed\n"); - case 0: - mwifiex_recv_packet_complete(adapter, skb_daggr, ret); - break; - default: - break; - } - - data += pkt_len + pad; - } - - return ret; -} - -/* * Create aggregated packet. * * This function creates an aggregated MSDU packet, by combining buffers diff --git a/drivers/net/wireless/mwifiex/sta_rx.c b/drivers/net/wireless/mwifiex/sta_rx.c index e047f0d8a983..1fdddece7479 100644 --- a/drivers/net/wireless/mwifiex/sta_rx.c +++ b/drivers/net/wireless/mwifiex/sta_rx.c @@ -141,10 +141,28 @@ int mwifiex_process_sta_rx_packet(struct mwifiex_adapter *adapter, dev_kfree_skb_any(skb); return ret; } + if (local_rx_pd->rx_pkt_type == PKT_TYPE_AMSDU) { - mwifiex_11n_deaggregate_pkt(priv, skb); - return ret; + struct sk_buff_head list; + struct sk_buff *rx_skb; + + __skb_queue_head_init(&list); + + skb_pull(skb, local_rx_pd->rx_pkt_offset); + skb_trim(skb, local_rx_pd->rx_pkt_length); + + ieee80211_amsdu_to_8023s(skb, &list, priv->curr_addr, + priv->wdev->iftype, 0, false); + + while (!skb_queue_empty(&list)) { + rx_skb = __skb_dequeue(&list); + ret = mwifiex_recv_packet(adapter, rx_skb); + if (ret == -1) + dev_err(adapter->dev, "Rx of A-MSDU failed"); + } + return 0; } + /* * If the packet is not an unicast packet then send the packet * directly to os. Don't pass thru rx reordering |
