i40evf: support Rx interrupt

[dpdk.git] / drivers / net / i40e / i40e_ethdev.c

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 1cca677..a39bd28 100644 (file)
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -76,11 +76,6 @@
 /* Maximun number of VSI */
 #define I40E_MAX_NUM_VSIS          (384UL)
 
-/* 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 */
-
 #define I40E_PRE_TX_Q_CFG_WAIT_US       10 /* 10 us */
 
 /* Flow control default timer */
@@ -1099,16 +1094,6 @@ i40e_vsi_queues_unbind_intr(struct i40e_vsi *vsi)
        I40E_WRITE_FLUSH(hw);
 }
 
-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);
-}
-
 static void
 __vsi_queues_bind_intr(struct i40e_vsi *vsi, uint16_t msix_vect,
                       int base_queue, int nb_queue)
@@ -1159,13 +1144,24 @@ __vsi_queues_bind_intr(struct i40e_vsi *vsi, uint16_t msix_vect,
        } else {
                uint32_t reg;
 
-               /* num_msix_vectors_vf needs to minus irq0 */
-               reg = (hw->func_caps.num_msix_vectors_vf - 1) *
-                       vsi->user_param + (msix_vect - 1);
+               if (msix_vect == I40E_MISC_VEC_ID) {
+                       I40E_WRITE_REG(hw,
+                                      I40E_VPINT_LNKLST0(vsi->user_param),
+                                      (base_queue <<
+                                       I40E_VPINT_LNKLST0_FIRSTQ_INDX_SHIFT) |
+                                      (0x0 <<
+                                       I40E_VPINT_LNKLST0_FIRSTQ_TYPE_SHIFT));
+               } else {
+                       /* num_msix_vectors_vf needs to minus irq0 */
+                       reg = (hw->func_caps.num_msix_vectors_vf - 1) *
+                               vsi->user_param + (msix_vect - 1);
 
-               I40E_WRITE_REG(hw, I40E_VPINT_LNKLSTN(reg), (base_queue <<
-                               I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT) |
-                               (0x0 << I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT));
+                       I40E_WRITE_REG(hw, I40E_VPINT_LNKLSTN(reg),
+                                      (base_queue <<
+                                       I40E_VPINT_LNKLSTN_FIRSTQ_INDX_SHIFT) |
+                                      (0x0 <<
+                                       I40E_VPINT_LNKLSTN_FIRSTQ_TYPE_SHIFT));
+               }
        }
 
        I40E_WRITE_FLUSH(hw);