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- From 0fc57e4b5e39461fc0a54aae0afe4241363a7267 Mon Sep 17 00:00:00 2001
- From: Ansuel Smith <[email protected]>
- Date: Fri, 14 May 2021 23:00:03 +0200
- Subject: [PATCH] net: dsa: qca8k: add GLOBAL_FC settings needed for qca8327
- Switch qca8327 needs special settings for the GLOBAL_FC_THRES regs.
- Signed-off-by: Ansuel Smith <[email protected]>
- Signed-off-by: David S. Miller <[email protected]>
- ---
- drivers/net/dsa/qca8k.c | 10 ++++++++++
- drivers/net/dsa/qca8k.h | 6 ++++++
- 2 files changed, 16 insertions(+)
- --- a/drivers/net/dsa/qca8k.c
- +++ b/drivers/net/dsa/qca8k.c
- @@ -930,6 +930,16 @@ qca8k_setup(struct dsa_switch *ds)
- }
- }
-
- + /* Special GLOBAL_FC_THRESH value are needed for ar8327 switch */
- + if (priv->switch_id == QCA8K_ID_QCA8327) {
- + mask = QCA8K_GLOBAL_FC_GOL_XON_THRES(288) |
- + QCA8K_GLOBAL_FC_GOL_XOFF_THRES(496);
- + qca8k_rmw(priv, QCA8K_REG_GLOBAL_FC_THRESH,
- + QCA8K_GLOBAL_FC_GOL_XON_THRES_S |
- + QCA8K_GLOBAL_FC_GOL_XOFF_THRES_S,
- + mask);
- + }
- +
- /* Setup our port MTUs to match power on defaults */
- for (i = 0; i < QCA8K_NUM_PORTS; i++)
- priv->port_mtu[i] = ETH_FRAME_LEN + ETH_FCS_LEN;
- --- a/drivers/net/dsa/qca8k.h
- +++ b/drivers/net/dsa/qca8k.h
- @@ -168,6 +168,12 @@
- #define QCA8K_PORT_LOOKUP_STATE GENMASK(18, 16)
- #define QCA8K_PORT_LOOKUP_LEARN BIT(20)
-
- +#define QCA8K_REG_GLOBAL_FC_THRESH 0x800
- +#define QCA8K_GLOBAL_FC_GOL_XON_THRES(x) ((x) << 16)
- +#define QCA8K_GLOBAL_FC_GOL_XON_THRES_S GENMASK(24, 16)
- +#define QCA8K_GLOBAL_FC_GOL_XOFF_THRES(x) ((x) << 0)
- +#define QCA8K_GLOBAL_FC_GOL_XOFF_THRES_S GENMASK(8, 0)
- +
- #define QCA8K_REG_PORT_HOL_CTRL0(_i) (0x970 + (_i) * 0x8)
- #define QCA8K_PORT_HOL_CTRL0_EG_PRI0_BUF GENMASK(3, 0)
- #define QCA8K_PORT_HOL_CTRL0_EG_PRI0(x) ((x) << 0)
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