X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;f=drivers%2Fnet%2Fi40e%2Fi40e_ethdev.h;h=d28193548cd61d220b99522d3036438f3afae5f8;hb=4b90a3ff26c5a2def84e06cd67c3792e5d313c75;hp=eff3adbbfeb8a5b747dbee6836c4f6e9c4da333a;hpb=be6c228d4da377bd16a90f12fa0638a29059b4da;p=dpdk.git

diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h
index eff3adbbfe..d28193548c 100644
--- a/drivers/net/i40e/i40e_ethdev.h
+++ b/drivers/net/i40e/i40e_ethdev.h
@@ -162,6 +162,11 @@ enum i40e_flxpld_layer_idx {
 #define I40E_MISC_VEC_ID                RTE_INTR_VEC_ZERO_OFFSET
 #define I40E_RX_VEC_START               RTE_INTR_VEC_RXTX_OFFSET
 
+/* Default queue interrupt throttling time in microseconds */
+#define I40E_ITR_INDEX_DEFAULT          0
+#define I40E_QUEUE_ITR_INTERVAL_DEFAULT 32 /* 32 us */
+#define I40E_QUEUE_ITR_INTERVAL_MAX     8160 /* 8160 us */
+
 struct i40e_adapter;
 
 /**
@@ -638,6 +643,16 @@ i40e_align_floor(int n)
 	return 1 << (sizeof(n) * CHAR_BIT - 1 - __builtin_clz(n));
 }
 
+static inline uint16_t
+i40e_calc_itr_interval(int16_t interval)
+{
+	if (interval < 0 || interval > I40E_QUEUE_ITR_INTERVAL_MAX)
+		interval = I40E_QUEUE_ITR_INTERVAL_DEFAULT;
+
+	/* Convert to hardware count, as writing each 1 represents 2 us */
+	return (interval / 2);
+}
+
 #define I40E_VALID_FLOW(flow_type) \
 	((flow_type) == RTE_ETH_FLOW_FRAG_IPV4 || \
 	(flow_type) == RTE_ETH_FLOW_NONFRAG_IPV4_TCP || \