diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index 170367eaa95a..e1384503dd4d 100644
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -2684,38 +2684,46 @@ int ice_vsi_release(struct ice_vsi *vsi)
}
/**
- * ice_vsi_rebuild_update_coalesce - set coalesce for a q_vector
+ * ice_vsi_rebuild_update_coalesce_intrl - set interrupt rate limit for a q_vector
* @q_vector: pointer to q_vector which is being updated
- * @coalesce: pointer to array of struct with stored coalesce
+ * @stored_intrl_setting: original INTRL setting
*
* Set coalesce param in q_vector and update these parameters in HW.
*/
static void
-ice_vsi_rebuild_update_coalesce(struct ice_q_vector *q_vector,
- struct ice_coalesce_stored *coalesce)
+ice_vsi_rebuild_update_coalesce_intrl(struct ice_q_vector *q_vector,
+ u16 stored_intrl_setting)
{
- struct ice_ring_container *rx_rc = &q_vector->rx;
- struct ice_ring_container *tx_rc = &q_vector->tx;
struct ice_hw *hw = &q_vector->vsi->back->hw;
- tx_rc->itr_setting = coalesce->itr_tx;
- rx_rc->itr_setting = coalesce->itr_rx;
-
- /* dynamic ITR values will be updated during Tx/Rx */
- if (!ITR_IS_DYNAMIC(tx_rc->itr_setting))
- wr32(hw, GLINT_ITR(tx_rc->itr_idx, q_vector->reg_idx),
- ITR_REG_ALIGN(tx_rc->itr_setting) >>
- ICE_ITR_GRAN_S);
- if (!ITR_IS_DYNAMIC(rx_rc->itr_setting))
- wr32(hw, GLINT_ITR(rx_rc->itr_idx, q_vector->reg_idx),
- ITR_REG_ALIGN(rx_rc->itr_setting) >>
- ICE_ITR_GRAN_S);
-
- q_vector->intrl = coalesce->intrl;
+ q_vector->intrl = stored_intrl_setting;
wr32(hw, GLINT_RATE(q_vector->reg_idx),
ice_intrl_usec_to_reg(q_vector->intrl, hw->intrl_gran));
}
+/**
+ * ice_vsi_rebuild_update_coalesce_itr - set coalesce for a q_vector
+ * @q_vector: pointer to q_vector which is being updated
+ * @rc: pointer to ring container
+ * @stored_itr_setting: original ITR setting
+ *
+ * Set coalesce param in q_vector and update these parameters in HW.
+ */
+static void
+ice_vsi_rebuild_update_coalesce_itr(struct ice_q_vector *q_vector,
+ struct ice_ring_container *rc,
+ u16 stored_itr_setting)
+{
+ struct ice_hw *hw = &q_vector->vsi->back->hw;
+
+ rc->itr_setting = stored_itr_setting;
+
+ /* dynamic ITR values will be updated during Tx/Rx */
+ if (!ITR_IS_DYNAMIC(rc->itr_setting))
+ wr32(hw, GLINT_ITR(rc->itr_idx, q_vector->reg_idx),
+ ITR_REG_ALIGN(rc->itr_setting) >> ICE_ITR_GRAN_S);
+}
+
/**
* ice_vsi_rebuild_get_coalesce - get coalesce from all q_vectors
* @vsi: VSI connected with q_vectors
@@ -2735,6 +2743,11 @@ ice_vsi_rebuild_get_coalesce(struct ice_vsi *vsi,
coalesce[i].itr_tx = q_vector->tx.itr_setting;
coalesce[i].itr_rx = q_vector->rx.itr_setting;
coalesce[i].intrl = q_vector->intrl;
+
+ if (i < vsi->num_txq)
+ coalesce[i].tx_valid = true;
+ if (i < vsi->num_rxq)
+ coalesce[i].rx_valid = true;
}
return vsi->num_q_vectors;
@@ -2759,17 +2772,59 @@ ice_vsi_rebuild_set_coalesce(struct ice_vsi *vsi,
if ((size && !coalesce) || !vsi)
return;
- for (i = 0; i < size && i < vsi->num_q_vectors; i++)
- ice_vsi_rebuild_update_coalesce(vsi->q_vectors[i],
- &coalesce[i]);
-
- /* number of q_vectors increased, so assume coalesce settings were
- * changed globally (i.e. ethtool -C eth0 instead of per-queue) and use
- * the previous settings from q_vector 0 for all of the new q_vectors
+ /* There are a couple of cases that have to be handled here:
+ * 1. The case where the number of queue vectors stays the same, but
+ * the number of Tx or Rx rings changes (the first for loop)
+ * 2. The case where the number of queue vectors increased (the
+ * second for loop)
*/
- for (; i < vsi->num_q_vectors; i++)
- ice_vsi_rebuild_update_coalesce(vsi->q_vectors[i],
- &coalesce[0]);
+ for (i = 0; i < size && i < vsi->num_q_vectors; i++) {
+ /* There are 2 cases to handle here and they are the same for
+ * both Tx and Rx:
+ * if the entry was valid previously (coalesce[i].[tr]x_valid
+ * and the loop variable is less than the number of rings
+ * allocated, then write the previous values
+ *
+ * if the entry was not valid previously, but the number of
+ * rings is less than are allocated (this means the number of
+ * rings increased from previously), then write out the
+ * values in the first element
+ */
+ if (i < vsi->alloc_rxq && coalesce[i].rx_valid)
+ ice_vsi_rebuild_update_coalesce_itr(vsi->q_vectors[i],
+ &vsi->q_vectors[i]->rx,
+ coalesce[i].itr_rx);
+ else if (i < vsi->alloc_rxq)
+ ice_vsi_rebuild_update_coalesce_itr(vsi->q_vectors[i],
+ &vsi->q_vectors[i]->rx,
+ coalesce[0].itr_rx);
+
+ if (i < vsi->alloc_txq && coalesce[i].tx_valid)
+ ice_vsi_rebuild_update_coalesce_itr(vsi->q_vectors[i],
+ &vsi->q_vectors[i]->tx,
+ coalesce[i].itr_tx);
+ else if (i < vsi->alloc_txq)
+ ice_vsi_rebuild_update_coalesce_itr(vsi->q_vectors[i],
+ &vsi->q_vectors[i]->tx,
+ coalesce[0].itr_tx);
+
+ ice_vsi_rebuild_update_coalesce_intrl(vsi->q_vectors[i],
+ coalesce[i].intrl);
+ }
+
+ /* the number of queue vectors increased so write whatever is in
+ * the first element
+ */
+ for (; i < vsi->num_q_vectors; i++) {
+ ice_vsi_rebuild_update_coalesce_itr(vsi->q_vectors[i],
+ &vsi->q_vectors[i]->tx,
+ coalesce[0].itr_tx);
+ ice_vsi_rebuild_update_coalesce_itr(vsi->q_vectors[i],
+ &vsi->q_vectors[i]->rx,
+ coalesce[0].itr_rx);
+ ice_vsi_rebuild_update_coalesce_intrl(vsi->q_vectors[i],
+ coalesce[0].intrl);
+ }
}
/**
@@ -2798,9 +2853,11 @@ int ice_vsi_rebuild(struct ice_vsi *vsi, bool init_vsi)
coalesce = kcalloc(vsi->num_q_vectors,
sizeof(struct ice_coalesce_stored), GFP_KERNEL);
- if (coalesce)
- prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi,
- coalesce);
+ if (!coalesce)
+ return -ENOMEM;
+
+ prev_num_q_vectors = ice_vsi_rebuild_get_coalesce(vsi, coalesce);
+
ice_rm_vsi_lan_cfg(vsi->port_info, vsi->idx);
ice_vsi_free_q_vectors(vsi);
diff --git a/drivers/net/ethernet/intel/ice/ice_txrx.h b/drivers/net/ethernet/intel/ice/ice_txrx.h
index ff1a1cbd078e..eab7ceae926b 100644
--- a/drivers/net/ethernet/intel/ice/ice_txrx.h
+++ b/drivers/net/ethernet/intel/ice/ice_txrx.h
@@ -351,6 +351,8 @@ struct ice_coalesce_stored {
u16 itr_tx;
u16 itr_rx;
u8 intrl;
+ u8 tx_valid;
+ u8 rx_valid;
};
/* iterator for handling rings in ring container */