From: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
To: jeff@garzik.org
Cc: netdev@vger.kernel.org, davem@davemloft.net,
Alexander Duyck <alexander.h.duyck@intel.com>,
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Subject: [PATCH] e1000e: enable ECC correction on 82571 silicon
Date: Fri, 14 Nov 2008 08:54:36 -0800 [thread overview]
Message-ID: <20081114165436.5396.40453.stgit@gitlost.lost> (raw)
From: Alexander Duyck <alexander.h.duyck@intel.com>
This change enables ECC correction for the packet buffer on all 82571
silicon.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
---
drivers/net/e1000e/82571.c | 6 ++++++
drivers/net/e1000e/defines.h | 7 +++++++
drivers/net/e1000e/hw.h | 1 +
3 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/drivers/net/e1000e/82571.c b/drivers/net/e1000e/82571.c
index b2c910c..3027ad5 100644
--- a/drivers/net/e1000e/82571.c
+++ b/drivers/net/e1000e/82571.c
@@ -973,6 +973,12 @@ static void e1000_initialize_hw_bits_82571(struct e1000_hw *hw)
ew32(CTRL_EXT, reg);
}
+ if (hw->mac.type == e1000_82571) {
+ reg = er32(PBA_ECC);
+ reg |= E1000_PBA_ECC_CORR_EN;
+ ew32(PBA_ECC, reg);
+ }
+
/* PCI-Ex Control Register */
if (hw->mac.type == e1000_82574) {
reg = er32(GCR);
diff --git a/drivers/net/e1000e/defines.h b/drivers/net/e1000e/defines.h
index 48f79ec..34a68fc 100644
--- a/drivers/net/e1000e/defines.h
+++ b/drivers/net/e1000e/defines.h
@@ -372,6 +372,13 @@
#define E1000_ICR_TXQ1 0x00800000 /* Tx Queue 1 Interrupt */
#define E1000_ICR_OTHER 0x01000000 /* Other Interrupts */
+/* PBA ECC Register */
+#define E1000_PBA_ECC_COUNTER_MASK 0xFFF00000 /* ECC counter mask */
+#define E1000_PBA_ECC_COUNTER_SHIFT 20 /* ECC counter shift value */
+#define E1000_PBA_ECC_CORR_EN 0x00000001 /* ECC correction enable */
+#define E1000_PBA_ECC_STAT_CLR 0x00000002 /* Clear ECC error counter */
+#define E1000_PBA_ECC_INT_EN 0x00000004 /* Enable ICR bit 5 for ECC */
+
/*
* This defines the bits that are set in the Interrupt Mask
* Set/Read Register. Each bit is documented below:
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h
index f66ed37..c4ffd4b 100644
--- a/drivers/net/e1000e/hw.h
+++ b/drivers/net/e1000e/hw.h
@@ -87,6 +87,7 @@ enum e1e_registers {
E1000_EEMNGCTL = 0x01010, /* MNG EEprom Control */
E1000_EEWR = 0x0102C, /* EEPROM Write Register - RW */
E1000_FLOP = 0x0103C, /* FLASH Opcode Register */
+ E1000_PBA_ECC = 0x01100, /* PBA ECC Register */
E1000_ERT = 0x02008, /* Early Rx Threshold - RW */
E1000_FCRTL = 0x02160, /* Flow Control Receive Threshold Low - RW */
E1000_FCRTH = 0x02168, /* Flow Control Receive Threshold High - RW */
reply other threads:[~2008-11-14 16:55 UTC|newest]
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