diff options
Diffstat (limited to 'drivers/net/ethernet/freescale')
| -rw-r--r-- | drivers/net/ethernet/freescale/fec_main.c | 15 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.c | 20 | ||||
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.h | 3 |
3 files changed, 28 insertions, 10 deletions
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index 01f7e811739b..692ee248e486 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -89,10 +89,10 @@ static struct platform_device_id fec_devtype[] = { .driver_data = 0, }, { .name = "imx25-fec", - .driver_data = FEC_QUIRK_USE_GASKET | FEC_QUIRK_HAS_RACC, + .driver_data = FEC_QUIRK_USE_GASKET, }, { .name = "imx27-fec", - .driver_data = FEC_QUIRK_HAS_RACC, + .driver_data = 0, }, { .name = "imx28-fec", .driver_data = FEC_QUIRK_ENET_MAC | FEC_QUIRK_SWAP_FRAME | @@ -180,6 +180,7 @@ MODULE_PARM_DESC(macaddr, "FEC Ethernet MAC address"); /* FEC receive acceleration */ #define FEC_RACC_IPDIS (1 << 1) #define FEC_RACC_PRODIS (1 << 2) +#define FEC_RACC_SHIFT16 BIT(7) #define FEC_RACC_OPTIONS (FEC_RACC_IPDIS | FEC_RACC_PRODIS) /* @@ -945,9 +946,11 @@ fec_restart(struct net_device *ndev) #if !defined(CONFIG_M5272) if (fep->quirks & FEC_QUIRK_HAS_RACC) { - /* set RX checksum */ val = readl(fep->hwp + FEC_RACC); + /* align IP header */ + val |= FEC_RACC_SHIFT16; if (fep->csum_flags & FLAG_RX_CSUM_ENABLED) + /* set RX checksum */ val |= FEC_RACC_OPTIONS; else val &= ~FEC_RACC_OPTIONS; @@ -1428,6 +1431,12 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id) prefetch(skb->data - NET_IP_ALIGN); skb_put(skb, pkt_len - 4); data = skb->data; + +#if !defined(CONFIG_M5272) + if (fep->quirks & FEC_QUIRK_HAS_RACC) + data = skb_pull_inline(skb, 2); +#endif + if (!is_copybreak && need_swap) swap_buffer(data, pkt_len); diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index d20935dc8399..4b4f5bc0e279 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -2922,17 +2922,25 @@ static bool gfar_add_rx_frag(struct gfar_rx_buff *rxb, u32 lstatus, { unsigned int size = lstatus & BD_LENGTH_MASK; struct page *page = rxb->page; + bool last = !!(lstatus & BD_LFLAG(RXBD_LAST)); /* Remove the FCS from the packet length */ - if (likely(lstatus & BD_LFLAG(RXBD_LAST))) + if (last) size -= ETH_FCS_LEN; - if (likely(first)) + if (likely(first)) { skb_put(skb, size); - else - skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, - rxb->page_offset + RXBUF_ALIGNMENT, - size, GFAR_RXB_TRUESIZE); + } else { + /* the last fragments' length contains the full frame length */ + if (last) + size -= skb->len; + + /* in case the last fragment consisted only of the FCS */ + if (size > 0) + skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, page, + rxb->page_offset + RXBUF_ALIGNMENT, + size, GFAR_RXB_TRUESIZE); + } /* try reuse page */ if (unlikely(page_count(page) != 1)) diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h index 373fd094f2f3..6e8a9c8467b9 100644 --- a/drivers/net/ethernet/freescale/gianfar.h +++ b/drivers/net/ethernet/freescale/gianfar.h @@ -100,7 +100,8 @@ extern const char gfar_driver_version[]; #define DEFAULT_RX_LFC_THR 16 #define DEFAULT_LFC_PTVVAL 4 -#define GFAR_RXB_SIZE 1536 +/* prevent fragmenation by HW in DSA environments */ +#define GFAR_RXB_SIZE roundup(1536 + 8, 64) #define GFAR_SKBFRAG_SIZE (RXBUF_ALIGNMENT + GFAR_RXB_SIZE \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))) #define GFAR_RXB_TRUESIZE 2048 |
