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sonic-buildimage/platform/mellanox/non-upstream-patches/patches/0240-UBUNTU-SAUCE-mlxbf_gige-support-10M-100M-1G-speeds-o.patch
Kebo Liu 27f15d40e1 [Mellanox] Update HW-MGMT package to new version V.7.0030.1011 (#16239) 
- Why I did it
1. Update Mellanox HW-MGMT package to newer version V.7.0030.1011
2. Replace the SONiC PMON Thermal control algorithm with the one inside the HW-MGMT package on all Nvidia platforms
3. Support Spectrum-4 systems

- How I did it
1. Update the HW-MGMT package version number and submodule pointer
2. Remove the thermal control algorithm implementation from Mellanox platform API
3. Revise the patch to HW-MGMT package which will disable HW-MGMT from running on SIMX
4. Update the downstream kernel patch list

Signed-off-by: Kebo Liu <kebol@nvidia.com>
2023-09-21 18:34:07 +08:00

238 lines
8.7 KiB
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From b9f0d98629a7720d2b6e34aed529f943cf421c04 Mon Sep 17 00:00:00 2001
From: David Thompson <davthompson@nvidia.com>
Date: Tue, 25 Oct 2022 17:19:27 -0400
Subject: [PATCH backport 5.10 41/63] UBUNTU: SAUCE: mlxbf_gige: support
10M/100M/1G speeds on BlueField-3
BugLink: https://bugs.launchpad.net/bugs/1995148
The BlueField-3 OOB interface supports 10Mbps, 100Mbps, and 1Gbps speeds.
The external PHY is responsible for autonegotiating the speed with the
link partner. Once the autonegotiation is done, the BlueField PLU needs
to be configured accordingly.
This patch does two things:
1) Initialize the advertised control flow/duplex/speed in the probe
based on the BlueField SoC generation (2 or 3)
2) Adjust the PLU speed config in the PHY interrupt handler
Signed-off-by: David Thompson <davthompson@nvidia.com>
Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
---
.../ethernet/mellanox/mlxbf_gige/mlxbf_gige.h | 8 ++
.../mellanox/mlxbf_gige/mlxbf_gige_main.c | 109 +++++++++++++++---
.../mellanox/mlxbf_gige/mlxbf_gige_regs.h | 21 ++++
3 files changed, 123 insertions(+), 15 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h
index 421a0b1b7..a453b9cd9 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige.h
@@ -14,6 +14,7 @@
#include <linux/irqreturn.h>
#include <linux/netdevice.h>
#include <linux/irq.h>
+#include <linux/phy.h>
/* The silicon design supports a maximum RX ring size of
* 32K entries. Based on current testing this maximum size
@@ -84,6 +85,12 @@ struct mlxbf_gige_mdio_gw {
struct mlxbf_gige_reg_param st1;
};
+struct mlxbf_gige_link_cfg {
+ void (*set_phy_link_mode)(struct phy_device *phydev);
+ void (*adjust_link)(struct net_device *netdev);
+ phy_interface_t phy_mode;
+};
+
struct mlxbf_gige {
void __iomem *base;
void __iomem *llu_base;
@@ -121,6 +128,7 @@ struct mlxbf_gige {
struct mlxbf_gige_stats stats;
u8 hw_version;
struct mlxbf_gige_mdio_gw *mdio_gw;
+ int prev_speed;
};
/* Rx Work Queue Element definitions */
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c
index 49695f3e9..106b83bd6 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_main.c
@@ -270,13 +270,103 @@ static const struct net_device_ops mlxbf_gige_netdev_ops = {
.ndo_get_stats64 = mlxbf_gige_get_stats64,
};
-static void mlxbf_gige_adjust_link(struct net_device *netdev)
+static void mlxbf_gige_bf2_adjust_link(struct net_device *netdev)
{
struct phy_device *phydev = netdev->phydev;
phy_print_status(phydev);
}
+static void mlxbf_gige_bf3_adjust_link(struct net_device *netdev)
+{
+ struct mlxbf_gige *priv = netdev_priv(netdev);
+ struct phy_device *phydev = netdev->phydev;
+ unsigned long flags;
+ u8 sgmii_mode;
+ u16 ipg_size;
+ u32 val;
+
+ spin_lock_irqsave(&priv->lock, flags);
+ if (phydev->link && phydev->speed != priv->prev_speed) {
+ switch (phydev->speed) {
+ case 1000:
+ ipg_size = MLXBF_GIGE_1G_IPG_SIZE;
+ sgmii_mode = MLXBF_GIGE_1G_SGMII_MODE;
+ break;
+ case 100:
+ ipg_size = MLXBF_GIGE_100M_IPG_SIZE;
+ sgmii_mode = MLXBF_GIGE_100M_SGMII_MODE;
+ break;
+ case 10:
+ ipg_size = MLXBF_GIGE_10M_IPG_SIZE;
+ sgmii_mode = MLXBF_GIGE_10M_SGMII_MODE;
+ break;
+ default:
+ spin_unlock_irqrestore(&priv->lock, flags);
+ return;
+ }
+
+ val = readl(priv->plu_base + MLXBF_GIGE_PLU_TX_REG0);
+ val &= ~(MLXBF_GIGE_PLU_TX_IPG_SIZE_MASK | MLXBF_GIGE_PLU_TX_SGMII_MODE_MASK);
+ val |= FIELD_PREP(MLXBF_GIGE_PLU_TX_IPG_SIZE_MASK, ipg_size);
+ val |= FIELD_PREP(MLXBF_GIGE_PLU_TX_SGMII_MODE_MASK, sgmii_mode);
+ writel(val, priv->plu_base + MLXBF_GIGE_PLU_TX_REG0);
+
+ val = readl(priv->plu_base + MLXBF_GIGE_PLU_RX_REG0);
+ val &= ~MLXBF_GIGE_PLU_RX_SGMII_MODE_MASK;
+ val |= FIELD_PREP(MLXBF_GIGE_PLU_RX_SGMII_MODE_MASK, sgmii_mode);
+ writel(val, priv->plu_base + MLXBF_GIGE_PLU_RX_REG0);
+
+ priv->prev_speed = phydev->speed;
+ }
+ spin_unlock_irqrestore(&priv->lock, flags);
+
+ phy_print_status(phydev);
+}
+
+static void mlxbf_gige_bf2_set_phy_link_mode(struct phy_device *phydev)
+{
+ /* MAC only supports 1000T full duplex mode */
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Full_BIT);
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Full_BIT);
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
+
+ /* Only symmetric pause with flow control enabled is supported so no
+ * need to negotiate pause.
+ */
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->advertising);
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->advertising);
+}
+
+static void mlxbf_gige_bf3_set_phy_link_mode(struct phy_device *phydev)
+{
+ /* MAC only supports full duplex mode */
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
+ phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
+
+ /* Only symmetric pause with flow control enabled is supported so no
+ * need to negotiate pause.
+ */
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->advertising);
+ linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->advertising);
+}
+
+static struct mlxbf_gige_link_cfg mlxbf_gige_link_cfgs[] = {
+ [MLXBF_GIGE_VERSION_BF2] = {
+ .set_phy_link_mode = mlxbf_gige_bf2_set_phy_link_mode,
+ .adjust_link = mlxbf_gige_bf2_adjust_link,
+ .phy_mode = PHY_INTERFACE_MODE_GMII
+ },
+ [MLXBF_GIGE_VERSION_BF3] = {
+ .set_phy_link_mode = mlxbf_gige_bf3_set_phy_link_mode,
+ .adjust_link = mlxbf_gige_bf3_adjust_link,
+ .phy_mode = PHY_INTERFACE_MODE_SGMII
+ }
+};
+
static int mlxbf_gige_probe(struct platform_device *pdev)
{
struct phy_device *phydev;
@@ -395,25 +485,14 @@ static int mlxbf_gige_probe(struct platform_device *pdev)
phydev->irq = phy_irq;
err = phy_connect_direct(netdev, phydev,
- mlxbf_gige_adjust_link,
- PHY_INTERFACE_MODE_GMII);
+ mlxbf_gige_link_cfgs[priv->hw_version].adjust_link,
+ mlxbf_gige_link_cfgs[priv->hw_version].phy_mode);
if (err) {
dev_err(&pdev->dev, "Could not attach to PHY\n");
goto out;
}
- /* MAC only supports 1000T full duplex mode */
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_1000baseT_Half_BIT);
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Full_BIT);
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_100baseT_Half_BIT);
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Full_BIT);
- phy_remove_link_mode(phydev, ETHTOOL_LINK_MODE_10baseT_Half_BIT);
-
- /* Only symmetric pause with flow control enabled is supported so no
- * need to negotiate pause.
- */
- linkmode_clear_bit(ETHTOOL_LINK_MODE_Pause_BIT, phydev->advertising);
- linkmode_clear_bit(ETHTOOL_LINK_MODE_Asym_Pause_BIT, phydev->advertising);
+ mlxbf_gige_link_cfgs[priv->hw_version].set_phy_link_mode(phydev);
/* Display information about attached PHY device */
phy_attached_info(phydev);
diff --git a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h
index 8d52dbef4..cd0973229 100644
--- a/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h
+++ b/drivers/net/ethernet/mellanox/mlxbf_gige/mlxbf_gige_regs.h
@@ -8,6 +8,8 @@
#ifndef __MLXBF_GIGE_REGS_H__
#define __MLXBF_GIGE_REGS_H__
+#include <linux/bitfield.h>
+
#define MLXBF_GIGE_VERSION 0x0000
#define MLXBF_GIGE_VERSION_BF2 0x0
#define MLXBF_GIGE_VERSION_BF3 0x1
@@ -78,4 +80,23 @@
*/
#define MLXBF_GIGE_MMIO_REG_SZ (MLXBF_GIGE_MAC_CFG + 8)
+#define MLXBF_GIGE_PLU_TX_REG0 0x80
+#define MLXBF_GIGE_PLU_TX_IPG_SIZE_MASK GENMASK(11, 0)
+#define MLXBF_GIGE_PLU_TX_SGMII_MODE_MASK GENMASK(15, 14)
+
+#define MLXBF_GIGE_PLU_RX_REG0 0x10
+#define MLXBF_GIGE_PLU_RX_SGMII_MODE_MASK GENMASK(25, 24)
+
+#define MLXBF_GIGE_1G_SGMII_MODE 0x0
+#define MLXBF_GIGE_10M_SGMII_MODE 0x1
+#define MLXBF_GIGE_100M_SGMII_MODE 0x2
+
+/* ipg_size default value for 1G is fixed by HW to 11 + End = 12.
+ * So for 100M it is 12 * 10 - 1 = 119
+ * For 10M, it is 12 * 100 - 1 = 1199
+ */
+#define MLXBF_GIGE_1G_IPG_SIZE 11
+#define MLXBF_GIGE_100M_IPG_SIZE 119
+#define MLXBF_GIGE_10M_IPG_SIZE 1199
+
#endif /* !defined(__MLXBF_GIGE_REGS_H__) */
--
2.20.1
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