diff options
Diffstat (limited to 'drivers/net/stmmac')
| -rw-r--r-- | drivers/net/stmmac/common.h | 1 | ||||
| -rw-r--r-- | drivers/net/stmmac/dwmac1000.h | 2 | ||||
| -rw-r--r-- | drivers/net/stmmac/enh_desc.c | 2 | ||||
| -rw-r--r-- | drivers/net/stmmac/stmmac_main.c | 8 |
4 files changed, 9 insertions, 4 deletions
diff --git a/drivers/net/stmmac/common.h b/drivers/net/stmmac/common.h index 144f76fd3e3..66b9da0260f 100644 --- a/drivers/net/stmmac/common.h +++ b/drivers/net/stmmac/common.h @@ -108,6 +108,7 @@ enum rx_frame_status { /* IPC status */ good_frame = 0, discard_frame = 1, csum_none = 2, + llc_snap = 4, }; enum tx_dma_irq_status { diff --git a/drivers/net/stmmac/dwmac1000.h b/drivers/net/stmmac/dwmac1000.h index d8d0f355377..8b20b19971c 100644 --- a/drivers/net/stmmac/dwmac1000.h +++ b/drivers/net/stmmac/dwmac1000.h @@ -93,7 +93,7 @@ enum inter_frame_gap { #define GMAC_CONTROL_IPC 0x00000400 /* Checksum Offload */ #define GMAC_CONTROL_DR 0x00000200 /* Disable Retry */ #define GMAC_CONTROL_LUD 0x00000100 /* Link up/down */ -#define GMAC_CONTROL_ACS 0x00000080 /* Automatic Pad Stripping */ +#define GMAC_CONTROL_ACS 0x00000080 /* Automatic Pad/FCS Stripping */ #define GMAC_CONTROL_DC 0x00000010 /* Deferral Check */ #define GMAC_CONTROL_TE 0x00000008 /* Transmitter Enable */ #define GMAC_CONTROL_RE 0x00000004 /* Receiver Enable */ diff --git a/drivers/net/stmmac/enh_desc.c b/drivers/net/stmmac/enh_desc.c index 3c18ebece04..f612f986a7e 100644 --- a/drivers/net/stmmac/enh_desc.c +++ b/drivers/net/stmmac/enh_desc.c @@ -123,7 +123,7 @@ static int enh_desc_coe_rdes0(int ipc_err, int type, int payload_err) */ if (status == 0x0) { CHIP_DBG(KERN_INFO "RX Des0 status: IEEE 802.3 Type frame.\n"); - ret = good_frame; + ret = llc_snap; } else if (status == 0x4) { CHIP_DBG(KERN_INFO "RX Des0 status: IPv4/6 No CSUM errorS.\n"); ret = good_frame; diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c index 1083334ccd2..bbb7951b9c4 100644 --- a/drivers/net/stmmac/stmmac_main.c +++ b/drivers/net/stmmac/stmmac_main.c @@ -1216,9 +1216,13 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit) priv->dev->stats.rx_errors++; else { struct sk_buff *skb; - /* Length should omit the CRC */ - int frame_len = priv->hw->desc->get_rx_frame_len(p) - 4; + int frame_len; + frame_len = priv->hw->desc->get_rx_frame_len(p); + /* ACS is set; GMAC core strips PAD/FCS for IEEE 802.3 + * Type frames (LLC/LLC-SNAP) */ + if (unlikely(status != llc_snap)) + frame_len -= ETH_FCS_LEN; #ifdef STMMAC_RX_DEBUG if (frame_len > ETH_FRAME_LEN) pr_debug("\tRX frame size %d, COE status: %d\n", |