diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0257-net-mscc-ocelot-export-a-constant-for-the-tag-length.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0257-net-mscc-ocelot-export-a-constant-for-the-tag-length.patch | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0257-net-mscc-ocelot-export-a-constant-for-the-tag-length.patch b/target/linux/layerscape/patches-5.4/701-net-0257-net-mscc-ocelot-export-a-constant-for-the-tag-length.patch new file mode 100644 index 0000000000..9a45bad301 --- /dev/null +++ b/target/linux/layerscape/patches-5.4/701-net-0257-net-mscc-ocelot-export-a-constant-for-the-tag-length.patch @@ -0,0 +1,73 @@ +From f53826ed84b6ce7c588949263cc9dedf3c577aa6 Mon Sep 17 00:00:00 2001 +From: Vladimir Oltean <vladimir.oltean@nxp.com> +Date: Thu, 14 Nov 2019 17:03:24 +0200 +Subject: [PATCH] net: mscc: ocelot: export a constant for the tag length in + bytes + +This constant will be used in a future patch to increase the MTU on NPI +ports, and will also be used in the tagger driver for Felix. + +Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +Signed-off-by: David S. Miller <davem@davemloft.net> +--- + drivers/net/ethernet/mscc/ocelot.c | 4 ++-- + drivers/net/ethernet/mscc/ocelot.h | 4 ++-- + drivers/net/ethernet/mscc/ocelot_board.c | 2 +- + 3 files changed, 5 insertions(+), 5 deletions(-) + +--- a/drivers/net/ethernet/mscc/ocelot.c ++++ b/drivers/net/ethernet/mscc/ocelot.c +@@ -576,11 +576,11 @@ static int ocelot_port_xmit(struct sk_bu + struct skb_shared_info *shinfo = skb_shinfo(skb); + struct ocelot_port *ocelot_port = &priv->port; + struct ocelot *ocelot = ocelot_port->ocelot; ++ u32 val, ifh[OCELOT_TAG_LEN / 4]; + struct frame_info info = {}; + u8 grp = 0; /* Send everything on CPU group 0 */ + unsigned int i, count, last; + int port = priv->chip_port; +- u32 val, ifh[IFH_LEN]; + + val = ocelot_read(ocelot, QS_INJ_STATUS); + if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))) || +@@ -603,7 +603,7 @@ static int ocelot_port_xmit(struct sk_bu + + ocelot_gen_ifh(ifh, &info); + +- for (i = 0; i < IFH_LEN; i++) ++ for (i = 0; i < OCELOT_TAG_LEN / 4; i++) + ocelot_write_rix(ocelot, (__force u32)cpu_to_be32(ifh[i]), + QS_INJ_WR, grp); + +--- a/drivers/net/ethernet/mscc/ocelot.h ++++ b/drivers/net/ethernet/mscc/ocelot.h +@@ -43,8 +43,6 @@ + + #define OCELOT_PTP_QUEUE_SZ 128 + +-#define IFH_LEN 4 +- + struct frame_info { + u32 len; + u16 port; +@@ -66,6 +64,8 @@ struct frame_info { + #define IFH_REW_OP_TWO_STEP_PTP 0x3 + #define IFH_REW_OP_ORIGIN_PTP 0x5 + ++#define OCELOT_TAG_LEN 16 ++ + #define OCELOT_SPEED_2500 0 + #define OCELOT_SPEED_1000 1 + #define OCELOT_SPEED_100 2 +--- a/drivers/net/ethernet/mscc/ocelot_board.c ++++ b/drivers/net/ethernet/mscc/ocelot_board.c +@@ -105,7 +105,7 @@ static irqreturn_t ocelot_xtr_irq_handle + int sz, len, buf_len; + struct sk_buff *skb; + +- for (i = 0; i < IFH_LEN; i++) { ++ for (i = 0; i < OCELOT_TAG_LEN / 4; i++) { + err = ocelot_rx_frame_word(ocelot, grp, true, &ifh[i]); + if (err != 4) + break; |