diff options
| author | Alex Shi <alex.shi@linaro.org> | 2018-01-18 15:26:28 +0800 |
|---|---|---|
| committer | Alex Shi <alex.shi@linaro.org> | 2018-01-18 15:26:28 +0800 |
| commit | 2ba51c6d36ee1b43c1f898c6c48ddf3d33e9ab30 (patch) | |
| tree | ff3302dc45a91d7bfcaabd37bfa8fa391a954180 /drivers/net/ethernet/freescale/fec_main.c | |
| parent | 28610abf4a574c33ca70e3d7b0e523fdede488d1 (diff) | |
| parent | 90816cc1d4a1d23efe37b74866c6174dd5eab6b5 (diff) | |
Merge remote-tracking branch 'rt-stable/v4.9-rt' into linux-linaro-lsk-v4.9-rtlsk-v4.9-18.02-rt
Conflicts:
arch/arm64/mm/init.c
Diffstat (limited to 'drivers/net/ethernet/freescale/fec_main.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 14 |
1 files changed, 11 insertions, 3 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 849b8712ec81..917091871259 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -172,10 +172,12 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address"); #endif /* CONFIG_M5272 */ /* The FEC stores dest/src/type/vlan, data, and checksum for receive packets. + * + * 2048 byte skbufs are allocated. However, alignment requirements + * varies between FEC variants. Worst case is 64, so round down by 64. */ -#define PKT_MAXBUF_SIZE 1522 +#define PKT_MAXBUF_SIZE (round_down(2048 - 64, 64)) #define PKT_MINBUF_SIZE 64 -#define PKT_MAXBLR_SIZE 1536 /* FEC receive acceleration */ #define FEC_RACC_IPDIS (1 << 1) @@ -813,6 +815,12 @@ static void fec_enet_bd_init(struct net_device *dev) for (i = 0; i < txq->bd.ring_size; i++) { /* Initialize the BD for every fragment in the page. */ bdp->cbd_sc = cpu_to_fec16(0); + if (bdp->cbd_bufaddr && + !IS_TSO_HEADER(txq, fec32_to_cpu(bdp->cbd_bufaddr))) + dma_unmap_single(&fep->pdev->dev, + fec32_to_cpu(bdp->cbd_bufaddr), + fec16_to_cpu(bdp->cbd_datlen), + DMA_TO_DEVICE); if (txq->tx_skbuff[i]) { dev_kfree_skb_any(txq->tx_skbuff[i]); txq->tx_skbuff[i] = NULL; @@ -847,7 +855,7 @@ static void fec_enet_enable_ring(struct net_device *ndev) for (i = 0; i < fep->num_rx_queues; i++) { rxq = fep->rx_queue[i]; writel(rxq->bd.dma, fep->hwp + FEC_R_DES_START(i)); - writel(PKT_MAXBLR_SIZE, fep->hwp + FEC_R_BUFF_SIZE(i)); + writel(PKT_MAXBUF_SIZE, fep->hwp + FEC_R_BUFF_SIZE(i)); /* enable DMA1/2 */ if (i) |