mwifiex: add rx workqueue support
This patch adds RX work queue support to mwifiex.
Packets received are queued to internal queue which are then
processed by scheduling a work item for RX process.
RX work is enabled only on SMP systems.
Reviewed-by: James Cameron <quozl@laptop.org>
Signed-off-by: Avinash Patil <patila@marvell.com>
Signed-off-by: Marc Yang <yangyang@marvell.com>
Signed-off-by: Cathy Luo <cluo@marvell.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/mwifiex/pcie.c b/drivers/net/wireless/mwifiex/pcie.c
index 2ada1b7..1504b16 100644
--- a/drivers/net/wireless/mwifiex/pcie.c
+++ b/drivers/net/wireless/mwifiex/pcie.c
@@ -1233,6 +1233,7 @@
struct sk_buff *skb_tmp = NULL;
struct mwifiex_pcie_buf_desc *desc;
struct mwifiex_pfu_buf_desc *desc2;
+ unsigned long flags;
if (!mwifiex_pcie_ok_to_access_hw(adapter))
mwifiex_pm_wakeup_card(adapter);
@@ -1283,7 +1284,16 @@
"info: RECV DATA: Rd=%#x, Wr=%#x, Len=%d\n",
card->rxbd_rdptr, wrptr, rx_len);
skb_pull(skb_data, INTF_HEADER_LEN);
- mwifiex_handle_rx_packet(adapter, skb_data);
+ if (adapter->rx_work_enabled) {
+ spin_lock_irqsave(&adapter->rx_q_lock, flags);
+ skb_queue_tail(&adapter->rx_data_q, skb_data);
+ spin_unlock_irqrestore(&adapter->rx_q_lock,
+ flags);
+ adapter->data_received = true;
+ atomic_inc(&adapter->rx_pending);
+ } else {
+ mwifiex_handle_rx_packet(adapter, skb_data);
+ }
}
skb_tmp = dev_alloc_skb(MWIFIEX_RX_DATA_BUF_SIZE);
