diff --git a/drivers/net/ethernet/wangxun/libwx/wx_hw.c b/drivers/net/ethernet/wangxun/libwx/wx_hw.c index 0f4be72116b8..4cce07a69891 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_hw.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_hw.c @@ -1912,7 +1912,6 @@ static void wx_configure_rx_ring(struct wx *wx, struct wx_ring *ring) { u16 reg_idx = ring->reg_idx; - union wx_rx_desc *rx_desc; u64 rdba = ring->dma; u32 rxdctl; @@ -1942,9 +1941,9 @@ static void wx_configure_rx_ring(struct wx *wx, memset(ring->rx_buffer_info, 0, sizeof(struct wx_rx_buffer) * ring->count); - /* initialize Rx descriptor 0 */ - rx_desc = WX_RX_DESC(ring, 0); - rx_desc->wb.upper.length = 0; + /* reset ntu and ntc to place SW in sync with hardware */ + ring->next_to_clean = 0; + ring->next_to_use = 0; /* enable receive descriptor ring */ wr32m(wx, WX_PX_RR_CFG(reg_idx), diff --git a/drivers/net/ethernet/wangxun/libwx/wx_lib.c b/drivers/net/ethernet/wangxun/libwx/wx_lib.c index c91487909811..0213ad5a6ceb 100644 --- a/drivers/net/ethernet/wangxun/libwx/wx_lib.c +++ b/drivers/net/ethernet/wangxun/libwx/wx_lib.c @@ -357,6 +357,8 @@ void wx_alloc_rx_buffers(struct wx_ring *rx_ring, u16 cleaned_count) /* clear the status bits for the next_to_use descriptor */ rx_desc->wb.upper.status_error = 0; + /* clear the length for the next_to_use descriptor */ + rx_desc->wb.upper.length = 0; cleaned_count--; } while (cleaned_count); @@ -2438,6 +2440,9 @@ static void wx_clean_rx_ring(struct wx_ring *rx_ring) } } + /* Zero out the descriptor ring */ + memset(rx_ring->desc, 0, rx_ring->size); + rx_ring->next_to_alloc = 0; rx_ring->next_to_clean = 0; rx_ring->next_to_use = 0;