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Date: Tue, 21 Jul 2009 18:47:27 +0300
From: "Eilon Greenstein" <eilong@...adcom.com>
To: "David Miller" <davem@...emloft.net>
cc: netdev@...r.kernel.org
Subject: [net-next 2/10] bnx2x: Fan failure
Setup fan failure for different PHY types or according to nvram settings
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
drivers/net/bnx2x_hsi.h | 15 ++++++
drivers/net/bnx2x_main.c | 112 +++++++++++++++++++++++++++++++---------------
2 files changed, 90 insertions(+), 37 deletions(-)
diff --git a/drivers/net/bnx2x_hsi.h b/drivers/net/bnx2x_hsi.h
index 03c6242..41c6dcb 100644
--- a/drivers/net/bnx2x_hsi.h
+++ b/drivers/net/bnx2x_hsi.h
@@ -91,6 +91,21 @@ struct shared_hw_cfg { /* NVRAM Offset */
#define SHARED_HW_CFG_HIDE_PORT1 0x00002000
+ /* The fan failure mechanism is usually related to the PHY type
+ since the power consumption of the board is determined by the PHY.
+ Currently, fan is required for most designs with SFX7101, BCM8727
+ and BCM8481. If a fan is not required for a board which uses one
+ of those PHYs, this field should be set to "Disabled". If a fan is
+ required for a different PHY type, this option should be set to
+ "Enabled".
+ The fan failure indication is expected on
+ SPIO5 */
+#define SHARED_HW_CFG_FAN_FAILURE_MASK 0x00180000
+#define SHARED_HW_CFG_FAN_FAILURE_SHIFT 19
+#define SHARED_HW_CFG_FAN_FAILURE_PHY_TYPE 0x00000000
+#define SHARED_HW_CFG_FAN_FAILURE_DISABLED 0x00080000
+#define SHARED_HW_CFG_FAN_FAILURE_ENABLED 0x00100000
+
u32 power_dissipated; /* 0x11c */
#define SHARED_HW_CFG_POWER_DIS_CMN_MASK 0xff000000
#define SHARED_HW_CFG_POWER_DIS_CMN_SHIFT 24
diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 177cb46..ae8b7b5 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -2598,6 +2598,22 @@ static void bnx2x_attn_int_asserted(struct bnx2x *bp, u32 asserted)
}
}
+static inline void bnx2x_fan_failure(struct bnx2x *bp)
+{
+ int port = BP_PORT(bp);
+
+ /* mark the failure */
+ bp->link_params.ext_phy_config &= ~PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK;
+ bp->link_params.ext_phy_config |= PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE;
+ SHMEM_WR(bp, dev_info.port_hw_config[port].external_phy_config,
+ bp->link_params.ext_phy_config);
+
+ /* log the failure */
+ printk(KERN_ERR PFX "Fan Failure on Network Controller %s has caused"
+ " the driver to shutdown the card to prevent permanent"
+ " damage. Please contact Dell Support for assistance\n",
+ bp->dev->name);
+}
static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)
{
int port = BP_PORT(bp);
@@ -2615,36 +2631,21 @@ static inline void bnx2x_attn_int_deasserted0(struct bnx2x *bp, u32 attn)
BNX2X_ERR("SPIO5 hw attention\n");
+ /* Fan failure attention */
switch (XGXS_EXT_PHY_TYPE(bp->link_params.ext_phy_config)) {
case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
- /* Fan failure attention */
-
- /* The PHY reset is controlled by GPIO 1 */
- bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
- MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
/* Low power mode is controlled by GPIO 2 */
bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_2,
MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
- /* mark the failure */
- bp->link_params.ext_phy_config &=
- ~PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK;
- bp->link_params.ext_phy_config |=
- PORT_HW_CFG_XGXS_EXT_PHY_TYPE_FAILURE;
- SHMEM_WR(bp,
- dev_info.port_hw_config[port].
- external_phy_config,
- bp->link_params.ext_phy_config);
- /* log the failure */
- printk(KERN_ERR PFX "Fan Failure on Network"
- " Controller %s has caused the driver to"
- " shutdown the card to prevent permanent"
- " damage. Please contact Dell Support for"
- " assistance\n", bp->dev->name);
+ /* The PHY reset is controlled by GPIO 1 */
+ bnx2x_set_gpio(bp, MISC_REGISTERS_GPIO_1,
+ MISC_REGISTERS_GPIO_OUTPUT_LOW, port);
break;
default:
break;
}
+ bnx2x_fan_failure(bp);
}
if (attn & (AEU_INPUTS_ATTN_BITS_GPIO3_FUNCTION_0 |
@@ -5509,6 +5510,58 @@ static void bnx2x_reset_common(struct bnx2x *bp)
REG_WR(bp, GRCBASE_MISC + MISC_REGISTERS_RESET_REG_2_CLEAR, 0x1403);
}
+
+static void bnx2x_setup_fan_failure_detection(struct bnx2x *bp)
+{
+ u32 val;
+ u8 port;
+ u8 is_required = 0;
+
+ val = SHMEM_RD(bp, dev_info.shared_hw_config.config2) &
+ SHARED_HW_CFG_FAN_FAILURE_MASK;
+
+ if (val == SHARED_HW_CFG_FAN_FAILURE_ENABLED)
+ is_required = 1;
+
+ /*
+ * The fan failure mechanism is usually related to the PHY type since
+ * the power consumption of the board is affected by the PHY. Currently,
+ * fan is required for most designs with SFX7101, BCM8727 and BCM8481.
+ */
+ else if (val == SHARED_HW_CFG_FAN_FAILURE_PHY_TYPE)
+ for (port = PORT_0; port < PORT_MAX; port++) {
+ u32 phy_type =
+ SHMEM_RD(bp, dev_info.port_hw_config[port].
+ external_phy_config) &
+ PORT_HW_CFG_XGXS_EXT_PHY_TYPE_MASK;
+ is_required |=
+ ((phy_type ==
+ PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101) ||
+ (phy_type ==
+ PORT_HW_CFG_XGXS_EXT_PHY_TYPE_BCM8481));
+ }
+
+ DP(NETIF_MSG_HW, "fan detection setting: %d\n", is_required);
+
+ if (is_required == 0)
+ return;
+
+ /* Fan failure is indicated by SPIO 5 */
+ bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5,
+ MISC_REGISTERS_SPIO_INPUT_HI_Z);
+
+ /* set to active low mode */
+ val = REG_RD(bp, MISC_REG_SPIO_INT);
+ val |= ((1 << MISC_REGISTERS_SPIO_5) <<
+ MISC_REGISTERS_SPIO_INT_OLD_SET_POS);
+ REG_WR(bp, MISC_REG_SPIO_INT, val);
+
+ /* enable interrupt to signal the IGU */
+ val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
+ val |= (1 << MISC_REGISTERS_SPIO_5);
+ REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val);
+}
+
static int bnx2x_init_common(struct bnx2x *bp)
{
u32 val, i;
@@ -5738,27 +5791,12 @@ static int bnx2x_init_common(struct bnx2x *bp)
bp->port.need_hw_lock = 1;
break;
- case PORT_HW_CFG_XGXS_EXT_PHY_TYPE_SFX7101:
- /* Fan failure is indicated by SPIO 5 */
- bnx2x_set_spio(bp, MISC_REGISTERS_SPIO_5,
- MISC_REGISTERS_SPIO_INPUT_HI_Z);
-
- /* set to active low mode */
- val = REG_RD(bp, MISC_REG_SPIO_INT);
- val |= ((1 << MISC_REGISTERS_SPIO_5) <<
- MISC_REGISTERS_SPIO_INT_OLD_SET_POS);
- REG_WR(bp, MISC_REG_SPIO_INT, val);
-
- /* enable interrupt to signal the IGU */
- val = REG_RD(bp, MISC_REG_SPIO_EVENT_EN);
- val |= (1 << MISC_REGISTERS_SPIO_5);
- REG_WR(bp, MISC_REG_SPIO_EVENT_EN, val);
- break;
-
default:
break;
}
+ bnx2x_setup_fan_failure_detection(bp);
+
/* clear PXP2 attentions */
REG_RD(bp, PXP2_REG_PXP2_INT_STS_CLR_0);
--
1.5.4.3
--
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