diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index be1058bdc4c5..889574d852b8 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -1107,9 +1107,9 @@ static void iwl_irq_tasklet_legacy(struct iwl_priv *priv)
 		priv->isr_stats.unhandled++;
 	}
 
-	if (inta & ~CSR_INI_SET_MASK) {
+	if (inta & ~(priv->inta_mask)) {
 		IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
-			 inta & ~CSR_INI_SET_MASK);
+			 inta & ~priv->inta_mask);
 		IWL_WARN(priv, "   with FH_INT = 0x%08x\n", inta_fh);
 	}
 
@@ -1260,12 +1260,37 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 	/* All uCode command responses, including Tx command responses,
 	 * Rx "responses" (frame-received notification), and other
 	 * notifications from uCode come through here*/
-	if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+	if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX |
+			CSR_INT_BIT_RX_PERIODIC)) {
 		IWL_DEBUG_ISR(priv, "Rx interrupt\n");
-		iwl_write32(priv, CSR_FH_INT_STATUS, CSR49_FH_INT_RX_MASK);
+		if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX)) {
+			handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
+			iwl_write32(priv, CSR_FH_INT_STATUS,
+					CSR49_FH_INT_RX_MASK);
+		}
+		if (inta & CSR_INT_BIT_RX_PERIODIC) {
+			handled |= CSR_INT_BIT_RX_PERIODIC;
+			iwl_write32(priv, CSR_INT, CSR_INT_BIT_RX_PERIODIC);
+		}
+		/* Sending RX interrupt require many steps to be done in the
+		 * the device:
+		 * 1- write interrupt to current index in ICT table.
+		 * 2- dma RX frame.
+		 * 3- update RX shared data to indicate last write index.
+		 * 4- send interrupt.
+		 * This could lead to RX race, driver could receive RX interrupt
+		 * but the shared data changes does not reflect this.
+		 * this could lead to RX race, RX periodic will solve this race
+		 */
+		iwl_write32(priv, CSR_INT_PERIODIC_REG,
+			    CSR_INT_PERIODIC_DIS);
 		iwl_rx_handle(priv);
+		/* Only set RX periodic if real RX is received. */
+		if (inta & (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX))
+			iwl_write32(priv, CSR_INT_PERIODIC_REG,
+				    CSR_INT_PERIODIC_ENA);
+
 		priv->isr_stats.rx++;
-		handled |= (CSR_INT_BIT_FH_RX | CSR_INT_BIT_SW_RX);
 	}
 
 	if (inta & CSR_INT_BIT_FH_TX) {
@@ -1283,9 +1308,9 @@ static void iwl_irq_tasklet(struct iwl_priv *priv)
 		priv->isr_stats.unhandled++;
 	}
 
-	if (inta & ~CSR_INI_SET_MASK) {
+	if (inta & ~(priv->inta_mask)) {
 		IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
-			 inta & ~CSR_INI_SET_MASK);
+			 inta & ~priv->inta_mask);
 	}
 
 
@@ -2808,6 +2833,7 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 	IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
 	priv->cfg = cfg;
 	priv->pci_dev = pdev;
+	priv->inta_mask = CSR_INI_SET_MASK;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	priv->debug_level = priv->cfg->mod_params->debug;
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 12f018392a44..e93ddb74457e 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -1500,7 +1500,7 @@ void iwl_enable_interrupts(struct iwl_priv *priv)
 {
 	IWL_DEBUG_ISR(priv, "Enabling interrupts\n");
 	set_bit(STATUS_INT_ENABLED, &priv->status);
-	iwl_write32(priv, CSR_INT_MASK, CSR_INI_SET_MASK);
+	iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
 }
 EXPORT_SYMBOL(iwl_enable_interrupts);
 
@@ -1554,6 +1554,8 @@ int iwl_alloc_isr_ict(struct iwl_priv *priv)
 	memset(priv->ict_tbl_vir,0, (sizeof(u32) * ICT_COUNT) + PAGE_SIZE);
 	priv->ict_index = 0;
 
+	/* add periodic RX interrupt */
+	priv->inta_mask |= CSR_INT_BIT_RX_PERIODIC;
 	return 0;
 }
 EXPORT_SYMBOL(iwl_alloc_isr_ict);
@@ -1586,7 +1588,7 @@ int iwl_reset_ict(struct iwl_priv *priv)
 	iwl_write32(priv, CSR_DRAM_INT_TBL_REG, val);
 	priv->use_ict = true;
 	priv->ict_index = 0;
-	iwl_write32(priv, CSR_INT, CSR_INI_SET_MASK);
+	iwl_write32(priv, CSR_INT, priv->inta_mask);
 	iwl_enable_interrupts(priv);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
@@ -1668,7 +1670,7 @@ irqreturn_t iwl_isr_ict(int irq, void *data)
 	IWL_DEBUG_ISR(priv, "ISR inta 0x%08x, enabled 0x%08x ict 0x%08x\n",
 			inta, inta_mask, val);
 
-	inta &= CSR_INI_SET_MASK;
+	inta &= priv->inta_mask;
 	priv->inta |= inta;
 
 	/* iwl_irq_tasklet() will service interrupts and re-enable them */
diff --git a/drivers/net/wireless/iwlwifi/iwl-csr.h b/drivers/net/wireless/iwlwifi/iwl-csr.h
index 34c123ea1d3e..e2fafb828684 100644
--- a/drivers/net/wireless/iwlwifi/iwl-csr.h
+++ b/drivers/net/wireless/iwlwifi/iwl-csr.h
@@ -100,6 +100,7 @@
 #define CSR_DRAM_INT_TBL_REG	(CSR_BASE+0x0A0)
 #define CSR_GIO_CHICKEN_BITS    (CSR_BASE+0x100)
 
+#define CSR_INT_PERIODIC_REG	(CSR_BASE+0x005)
 /* Analog phase-lock-loop configuration  */
 #define CSR_ANA_PLL_CFG         (CSR_BASE+0x20c)
 /*
@@ -129,12 +130,14 @@
 #define CSR_HW_IF_CONFIG_REG_BIT_ME_OWN			(0x02000000)
 #define CSR_HW_IF_CONFIG_REG_BIT_WAKE_ME		(0x08000000)
 
+#define CSR_INT_PERIODIC_DIS			(0x00)
+#define CSR_INT_PERIODIC_ENA			(0xFF)
 
 /* interrupt flags in INTA, set by uCode or hardware (e.g. dma),
  * acknowledged (reset) by host writing "1" to flagged bits. */
 #define CSR_INT_BIT_FH_RX        (1 << 31) /* Rx DMA, cmd responses, FH_INT[17:16] */
 #define CSR_INT_BIT_HW_ERR       (1 << 29) /* DMA hardware error FH_INT[31] */
-#define CSR_INT_BIT_DNLD         (1 << 28) /* uCode Download */
+#define CSR_INT_BIT_RX_PERIODIC	 (1 << 28) /* Rx periodic */
 #define CSR_INT_BIT_FH_TX        (1 << 27) /* Tx DMA FH_INT[1:0] */
 #define CSR_INT_BIT_SCD          (1 << 26) /* TXQ pointer advanced */
 #define CSR_INT_BIT_SW_ERR       (1 << 25) /* uCode error */
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 770cd1b062ff..f9a3fd6a023a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -1058,6 +1058,7 @@ struct iwl_priv {
 	u32 inta;
 	bool use_ict;
 
+	u32 inta_mask;
 	/* Current association information needed to configure the
 	 * hardware */
 	u16 assoc_id;
diff --git a/drivers/net/wireless/iwlwifi/iwl3945-base.c b/drivers/net/wireless/iwlwifi/iwl3945-base.c
index 639893d7808b..c434f493daf5 100644
--- a/drivers/net/wireless/iwlwifi/iwl3945-base.c
+++ b/drivers/net/wireless/iwlwifi/iwl3945-base.c
@@ -1944,9 +1944,9 @@ static void iwl3945_irq_tasklet(struct iwl_priv *priv)
 		priv->isr_stats.unhandled++;
 	}
 
-	if (inta & ~CSR_INI_SET_MASK) {
+	if (inta & ~priv->inta_mask) {
 		IWL_WARN(priv, "Disabled INTA bits 0x%08x were pending\n",
-			 inta & ~CSR_INI_SET_MASK);
+			 inta & ~priv->inta_mask);
 		IWL_WARN(priv, "   with FH_INT = 0x%08x\n", inta_fh);
 	}
 
@@ -4184,6 +4184,7 @@ static int iwl3945_pci_probe(struct pci_dev *pdev, const struct pci_device_id *e
 	IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n");
 	priv->cfg = cfg;
 	priv->pci_dev = pdev;
+	priv->inta_mask = CSR_INI_SET_MASK;
 
 #ifdef CONFIG_IWLWIFI_DEBUG
 	priv->debug_level = iwl3945_mod_params.debug;