@@ -454,6 +454,9 @@ static int ice_setup_rx_ctx(struct ice_rx_ring *ring)
/* Rx queue threshold in units of 64 */
rlan_ctx.lrxqthresh = 1;
+ /* Enable descriptor prefetch */
+ rlan_ctx.prefena = 1;
+
/* PF acts as uplink for switchdev; set flex descriptor with src_vsi
* metadata and flags to allow redirecting to PR netdev
*/
@@ -1433,14 +1433,13 @@ static void ice_pack_rxq_ctx(const struct ice_rlan_ctx *ctx,
}
/**
- * ice_write_rxq_ctx
+ * ice_write_rxq_ctx - Write Rx Queue context to hardware
* @hw: pointer to the hardware structure
* @rlan_ctx: pointer to the rxq context
* @rxq_index: the index of the Rx queue
*
- * Converts rxq context from sparse to dense structure and then writes
- * it to HW register space and enables the hardware to prefetch descriptors
- * instead of only fetching them on demand
+ * Pack the sparse Rx Queue context into dense hardware format and write it
+ * into the HW register space.
*/
int ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
u32 rxq_index)
@@ -1450,8 +1449,6 @@ int ice_write_rxq_ctx(struct ice_hw *hw, struct ice_rlan_ctx *rlan_ctx,
if (!rlan_ctx)
return -EINVAL;
- rlan_ctx->prefena = 1;
-
ice_pack_rxq_ctx(rlan_ctx, &buf);
return ice_copy_rxq_ctx_to_hw(hw, &buf, rxq_index);