net: atlantic: Fix DMA mapping for PTP hwts ring

[platform/kernel/linux-starfive.git] / drivers / net / ethernet / aquantia / atlantic / aq_ring.c

diff --git a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
index cda8597..f7433ab 100644 (file)
--- a/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
+++ b/drivers/net/ethernet/aquantia/atlantic/aq_ring.c
@@ -919,6 +919,19 @@ void aq_ring_free(struct aq_ring_s *self)
        }
 }
 
+void aq_ring_hwts_rx_free(struct aq_ring_s *self)
+{
+       if (!self)
+               return;
+
+       if (self->dx_ring) {
+               dma_free_coherent(aq_nic_get_dev(self->aq_nic),
+                                 self->size * self->dx_size + AQ_CFG_RXDS_DEF,
+                                 self->dx_ring, self->dx_ring_pa);
+               self->dx_ring = NULL;
+       }
+}
+
 unsigned int aq_ring_fill_stats_data(struct aq_ring_s *self, u64 *data)
 {
        unsigned int count;