From 6b4985b105d39ca22bc2de9da6889157cdac97a8 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Mon, 5 Oct 2015 10:26:21 +0000 Subject: [PATCH] ramips: Fix setting of rx buffer length The length of the DMA rx buffer was always set to 0 because the function for extracting the length was used to calculate the value for setting it. Instead the macro has to be split in a get and set function similar to the TX_DMA_(GET_|)PLEN(0|1) macro. No problem was noticed on MT7621a before this was changed and thus maybe it was hidden by different problem which is not yet fixed. Signed-off-by: Sven Eckelmann SVN-Revision: 47115 --- .../ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c | 2 +- .../ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c index db6b1977f803..2691cfb71051 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c @@ -849,7 +849,7 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, dma_unmap_single(&netdev->dev, trxd.rxd1, ring->rx_buf_size, DMA_FROM_DEVICE); - pktlen = RX_DMA_PLEN0(trxd.rxd2); + pktlen = RX_DMA_GET_PLEN0(trxd.rxd2); skb->dev = netdev; skb_put(skb, pktlen); if (trxd.rxd4 & checksum_bit) { diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h index 78e04b025ef8..51b087c6db87 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h @@ -310,7 +310,8 @@ enum fe_work_flag { /* rxd2 */ #define RX_DMA_DONE BIT(31) #define RX_DMA_LSO BIT(30) -#define RX_DMA_PLEN0(_x) (((_x) >> 16) & 0x3fff) +#define RX_DMA_PLEN0(_x) (((_x) & 0x3fff) << 16) +#define RX_DMA_GET_PLEN0(_x) (((_x) >> 16) & 0x3fff) #define RX_DMA_TAG BIT(15) /* rxd3 */ #define RX_DMA_TPID(_x) (((_x) >> 16) & 0xffff) -- 2.30.2