Return-path: Received: from mga03.intel.com ([143.182.124.21]:6273 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751286AbZKZGAP (ORCPT ); Thu, 26 Nov 2009 01:00:15 -0500 From: Zhu Yi To: linville@tuxdriver.com Cc: linux-wireless@vger.kernel.org, Zhu Yi Subject: [RFC 2/2] iwmc3200wifi: rx aggregation support Date: Thu, 26 Nov 2009 14:03:33 +0800 Message-Id: <1259215413-16753-2-git-send-email-yi.zhu@intel.com> In-Reply-To: <1259215413-16753-1-git-send-email-yi.zhu@intel.com> References: <1259215413-16753-1-git-send-email-yi.zhu@intel.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: 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. Signed-off-by: Zhu Yi --- drivers/net/wireless/iwmc3200wifi/rx.c | 55 +++++++++++++++++++++++++++----- 1 files changed, 47 insertions(+), 8 deletions(-) diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c index 72c27a3..99f4f8a 100644 --- a/drivers/net/wireless/iwmc3200wifi/rx.c +++ b/drivers/net/wireless/iwmc3200wifi/rx.c @@ -1534,6 +1534,34 @@ static void classify8023(struct sk_buff *skb) } } +static int 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; + int ret; + + IWM_HEXDUMP(iwm, DBG, RX, "A-MSDU: ", skb->data, skb->len); + + skb_queue_head_init(&list); + ret = ieee80211_amsdu_to_8023s(skb, &list, ndev->dev_addr, + wdev->iftype); + if (ret) { + IWM_ERR(iwm, "decode A-MSDU frame failed\n"); + return -EINVAL; + } + + while ((frame = skb_dequeue(&list))) { + if (netif_rx_ni(frame) == NET_RX_DROP) { + IWM_ERR(iwm, "Packet dropped\n"); + ndev->stats.rx_dropped++; + } + } + + return 0; +} + static void iwm_rx_process_packet(struct iwm_priv *iwm, struct iwm_rx_packet *packet, struct iwm_rx_ticket_node *ticket_node) @@ -1548,25 +1576,36 @@ 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"); + + skb->dev = iwm_to_ndev(iwm); + 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; + classify8023(skb); iwm_rx_adjust_packet(iwm, packet, ticket_node); + + if (le16_to_cpu(ticket_node->ticket->flags) & + IWM_RX_TICKET_AMSDU_MSK) { + ret = iwm_rx_process_amsdu(iwm, skb); + if (ret < 0) + kfree_skb(packet->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); - 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++; -- 1.6.0.4