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iwmc3200wifi: rx aggregation support 

When the device receives an A-MSDU frame (indicated by flag
IWM_RX_TICKET_AMSDU_MSK), use ieee80211_amsdu_to_8023s to convert
it to a list of 802.3 frames and handled them to upper layer.

Cc: Johannes Berg <johannes@sipsolutions.net>
Acked-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Zhu Yi 2009-12-01 10:18:38 +08:00 committed by John W. Linville
parent eaf85ca7fe
commit 18974b5b0b
1 changed files with 41 additions and 5 deletions
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46
drivers/net/wireless/iwmc3200wifi/rx.c
View File

@ -1534,6 +1534,33 @@ static void classify8023(struct sk_buff *skb)
}
}
static void iwm_rx_process_amsdu(struct iwm_priv *iwm, struct sk_buff *skb)
{
struct wireless_dev *wdev = iwm_to_wdev(iwm);
struct net_device *ndev = iwm_to_ndev(iwm);
struct sk_buff_head list;
struct sk_buff *frame;
IWM_HEXDUMP(iwm, DBG, RX, "A-MSDU: ", skb->data, skb->len);
__skb_queue_head_init(&list);
ieee80211_amsdu_to_8023s(skb, &list, ndev->dev_addr, wdev->iftype, 0);
while ((frame = __skb_dequeue(&list))) {
ndev->stats.rx_packets++;
ndev->stats.rx_bytes += frame->len;
frame->protocol = eth_type_trans(frame, ndev);
frame->ip_summed = CHECKSUM_NONE;
memset(frame->cb, 0, sizeof(frame->cb));
if (netif_rx_ni(frame) == NET_RX_DROP) {
IWM_ERR(iwm, "Packet dropped\n");
ndev->stats.rx_dropped++;
}
}
}
static void iwm_rx_process_packet(struct iwm_priv *iwm,
struct iwm_rx_packet *packet,
struct iwm_rx_ticket_node *ticket_node)
@ -1548,25 +1575,34 @@ static void iwm_rx_process_packet(struct iwm_priv *iwm,
switch (le16_to_cpu(ticket_node->ticket->action)) {
case IWM_RX_TICKET_RELEASE:
IWM_DBG_RX(iwm, DBG, "RELEASE packet\n");
classify8023(skb);
iwm_rx_adjust_packet(iwm, packet, ticket_node);
skb->dev = iwm_to_ndev(iwm);
classify8023(skb);
if (le16_to_cpu(ticket_node->ticket->flags) &
IWM_RX_TICKET_AMSDU_MSK) {
iwm_rx_process_amsdu(iwm, skb);
break;
}
ret = ieee80211_data_to_8023(skb, ndev->dev_addr, wdev->iftype);
if (ret < 0) {
IWM_DBG_RX(iwm, DBG, "Couldn't convert 802.11 header - "
"%d\n", ret);
kfree_skb(packet->skb);
break;
}
IWM_HEXDUMP(iwm, DBG, RX, "802.3: ", skb->data, skb->len);
skb->dev = iwm_to_ndev(iwm);
ndev->stats.rx_packets++;
ndev->stats.rx_bytes += skb->len;
skb->protocol = eth_type_trans(skb, ndev);
skb->ip_summed = CHECKSUM_NONE;
memset(skb->cb, 0, sizeof(skb->cb));
ndev->stats.rx_packets++;
ndev->stats.rx_bytes += skb->len;
if (netif_rx_ni(skb) == NET_RX_DROP) {
IWM_ERR(iwm, "Packet dropped\n");
ndev->stats.rx_dropped++;