i40evf: support queue-specific settings for interrupt moderation
In commit a75e8005d506f3 ("i40e: queue-specific settings for interrupt
moderation") the i40e driver gained support for setting interrupt
moderation values per queue. This patch adds support for this feature
to the i40evf driver as well. In addition, a few changes are made to
the i40e implementation to add function header documentation comments,
as well.
This behaves in a similar fashion to the implementation in i40e. Thus,
requesting the moderation value when no queue is provided will report
queue 0 value, while setting the value without a queue will set all
queues at once.
Change-ID: I1f310a57c8e6c84a8524c178d44d1b7a6d3a848e
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 5237c49..6287bf6 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -1877,6 +1877,15 @@
/* a small macro to shorten up some long lines */
#define INTREG I40E_PFINT_DYN_CTLN
+static inline int get_rx_itr_enabled(struct i40e_vsi *vsi, int idx)
+{
+ return !!(vsi->rx_rings[idx]->rx_itr_setting);
+}
+
+static inline int get_tx_itr_enabled(struct i40e_vsi *vsi, int idx)
+{
+ return !!(vsi->tx_rings[idx]->tx_itr_setting);
+}
/**
* i40e_update_enable_itr - Update itr and re-enable MSIX interrupt
@@ -1892,6 +1901,7 @@
u32 rxval, txval;
int vector;
int idx = q_vector->v_idx;
+ int rx_itr_setting, tx_itr_setting;
vector = (q_vector->v_idx + vsi->base_vector);
@@ -1900,18 +1910,21 @@
*/
rxval = txval = i40e_buildreg_itr(I40E_ITR_NONE, 0);
+ rx_itr_setting = get_rx_itr_enabled(vsi, idx);
+ tx_itr_setting = get_tx_itr_enabled(vsi, idx);
+
if (q_vector->itr_countdown > 0 ||
- (!ITR_IS_DYNAMIC(vsi->rx_rings[idx]->rx_itr_setting) &&
- !ITR_IS_DYNAMIC(vsi->tx_rings[idx]->tx_itr_setting))) {
+ (!ITR_IS_DYNAMIC(rx_itr_setting) &&
+ !ITR_IS_DYNAMIC(tx_itr_setting))) {
goto enable_int;
}
- if (ITR_IS_DYNAMIC(vsi->rx_rings[idx]->rx_itr_setting)) {
+ if (ITR_IS_DYNAMIC(tx_itr_setting)) {
rx = i40e_set_new_dynamic_itr(&q_vector->rx);
rxval = i40e_buildreg_itr(I40E_RX_ITR, q_vector->rx.itr);
}
- if (ITR_IS_DYNAMIC(vsi->tx_rings[idx]->tx_itr_setting)) {
+ if (ITR_IS_DYNAMIC(tx_itr_setting)) {
tx = i40e_set_new_dynamic_itr(&q_vector->tx);
txval = i40e_buildreg_itr(I40E_TX_ITR, q_vector->tx.itr);
}