tree e0de01c46c50d466e515a8459807bb491c4af767
parent ab707da7cf0a1a1d27c6021356cfb3692cf1bd26
author Stephen Hemminger <[EMAIL PROTECTED]> Wed, 17 Aug 2005 04:00:54 -0700
committer Jeff Garzik <[EMAIL PROTECTED]> Wed, 17 Aug 2005 01:03:13 -0400

[PATCH] skge: stop bogus sensor messages

Some versions of the Marvell yukon generate bogus sensor warning interrupts.
The driver would flood log with these messages.  Handle this situation
cleanly by masking away at boot time.

Fixes: http://bugs.gentoo.org/show_bug.cgi?id=87182

Signed-off-by: Stephen Hemminger <[EMAIL PROTECTED]>

 drivers/net/skge.c |   24 ++++++++++--------------
 drivers/net/skge.h |    8 ++++++--
 2 files changed, 16 insertions(+), 16 deletions(-)
Signed-off-by: Jeff Garzik <[EMAIL PROTECTED]>

 drivers/net/skge.c |   24 ++++++++++--------------
 drivers/net/skge.h |    8 ++++++--
 2 files changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/net/skge.c b/drivers/net/skge.c
--- a/drivers/net/skge.c
+++ b/drivers/net/skge.c
@@ -2670,18 +2670,6 @@ static void skge_error_irq(struct skge_h
                /* Timestamp (unused) overflow */
                if (hwstatus & IS_IRQ_TIST_OV)
                        skge_write8(hw, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ);
-
-               if (hwstatus & IS_IRQ_SENSOR) {
-                       /* no sensors on 32-bit Yukon */
-                       if (!(skge_read16(hw, B0_CTST) & CS_BUS_SLOT_SZ)) {
-                               printk(KERN_ERR PFX "ignoring bogus sensor 
interrups\n");
-                               skge_write32(hw, B0_HWE_IMSK,
-                                            IS_ERR_MSK & ~IS_IRQ_SENSOR);
-                       } else
-                               printk(KERN_WARNING PFX "sensor interrupt\n");
-               }
-
-
        }
 
        if (hwstatus & IS_RAM_RD_PAR) {
@@ -2712,9 +2700,10 @@ static void skge_error_irq(struct skge_h
 
                skge_pci_clear(hw);
 
+               /* if error still set then just ignore it */
                hwstatus = skge_read32(hw, B0_HWE_ISRC);
                if (hwstatus & IS_IRQ_STAT) {
-                       printk(KERN_WARNING PFX "IRQ status %x: still set 
ignoring hardware errors\n",
+                       pr_debug("IRQ status %x: still set ignoring hardware 
errors\n",
                               hwstatus);
                        hw->intr_mask &= ~IS_HW_ERR;
                }
@@ -2948,12 +2937,20 @@ static int skge_reset(struct skge_hw *hw
        else
                hw->ram_size = t8 * 4096;
 
+       hw->intr_mask = IS_HW_ERR | IS_EXT_REG;
        if (hw->chip_id == CHIP_ID_GENESIS)
                genesis_init(hw);
        else {
                /* switch power to VCC (WA for VAUX problem) */
                skge_write8(hw, B0_POWER_CTRL,
                            PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON);
+               /* avoid boards with stuck Hardware error bits */
+               if ((skge_read32(hw, B0_ISRC) & IS_HW_ERR) &&
+                   (skge_read32(hw, B0_HWE_ISRC) & IS_IRQ_SENSOR)) {
+                       printk(KERN_WARNING PFX "stuck hardware sensor bit\n");
+                       hw->intr_mask &= ~IS_HW_ERR;
+               }
+
                for (i = 0; i < hw->ports; i++) {
                        skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), 
GMLC_RST_SET);
                        skge_write16(hw, SK_REG(i, GMAC_LINK_CTRL), 
GMLC_RST_CLR);
@@ -2994,7 +2991,6 @@ static int skge_reset(struct skge_hw *hw
        skge_write32(hw, B2_IRQM_INI, skge_usecs2clk(hw, 100));
        skge_write32(hw, B2_IRQM_CTRL, TIM_START);
 
-       hw->intr_mask = IS_HW_ERR | IS_EXT_REG;
        skge_write32(hw, B0_IMSK, hw->intr_mask);
 
        if (hw->chip_id != CHIP_ID_GENESIS)
diff --git a/drivers/net/skge.h b/drivers/net/skge.h
--- a/drivers/net/skge.h
+++ b/drivers/net/skge.h
@@ -214,8 +214,6 @@ enum {
 
 /*     B2_IRQM_HWE_MSK 32 bit  IRQ Moderation HW Error Mask */
 enum {
-       IS_ERR_MSK      = 0x00003fff,/*                 All Error bits */
-
        IS_IRQ_TIST_OV  = 1<<13, /* Time Stamp Timer Overflow (YUKON only) */
        IS_IRQ_SENSOR   = 1<<12, /* IRQ from Sensor (YUKON only) */
        IS_IRQ_MST_ERR  = 1<<11, /* IRQ master error detected */
@@ -230,6 +228,12 @@ enum {
        IS_M2_PAR_ERR   = 1<<2, /* MAC 2 Parity Error */
        IS_R1_PAR_ERR   = 1<<1, /* Queue R1 Parity Error */
        IS_R2_PAR_ERR   = 1<<0, /* Queue R2 Parity Error */
+
+       IS_ERR_MSK      = IS_IRQ_MST_ERR | IS_IRQ_STAT
+                       | IS_NO_STAT_M1 | IS_NO_STAT_M2
+                       | IS_RAM_RD_PAR | IS_RAM_WR_PAR
+                       | IS_M1_PAR_ERR | IS_M2_PAR_ERR
+                       | IS_R1_PAR_ERR | IS_R2_PAR_ERR,
 };
 
 /*     B2_TST_CTRL1     8 bit  Test Control Register 1 */
-
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