intel 5100/iwlagn bug in 2.6.35-rc2 during large file transfer

Commit Message

Reinette Chatre June 25, 2010, 6:57 p.m. UTC

None

Patch

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
index 0f292a2..2815ee7 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-lib.c
@@ -613,7 +613,8 @@  void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority)
 		}
 		spin_unlock_irqrestore(&rxq->lock, flags);
 
-		if (rxq->free_count > RX_LOW_WATERMARK)
+		if ((priority == GFP_ATOMIC) ||
+		    (rxq->free_count > RX_LOW_WATERMARK / 4))
 			gfp_mask |= __GFP_NOWARN;
 
 		if (priv->hw_params.rx_page_order > 0)
@@ -627,7 +628,7 @@  void iwlagn_rx_allocate(struct iwl_priv *priv, gfp_t priority)
 					       "order: %d\n",
 					       priv->hw_params.rx_page_order);
 
-			if ((rxq->free_count <= RX_LOW_WATERMARK) &&
+			if ((rxq->free_count <= RX_LOW_WATERMARK / 4) &&
 			    net_ratelimit())
 				IWL_CRIT(priv, "Failed to alloc_pages with %s. Only %u free buffers remaining.\n",
 					 priority == GFP_ATOMIC ?  "GFP_ATOMIC" : "GFP_KERNEL",
diff --git a/drivers/net/wireless/iwlwifi/iwl-fh.h b/drivers/net/wireless/iwlwifi/iwl-fh.h
index 113c366..431bc58 100644
--- a/drivers/net/wireless/iwlwifi/iwl-fh.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fh.h
@@ -426,7 +426,7 @@ 
  * RX related structures and functions
  */
 #define RX_FREE_BUFFERS 64
-#define RX_LOW_WATERMARK 8
+#define RX_LOW_WATERMARK 128
 
 /* Size of one Rx buffer in host DRAM */
 #define IWL_RX_BUF_SIZE_3K (3 * 1000) /* 3945 only */