From: Auke Kok <auke-jan.h.kok@intel.com>
To: jgarzik@pobox.com
Cc: torvalds@linux-foundation.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, john.ronciak@intel.com,
jesse.brandeburg@intel.com
Subject: [PATCH 2/3] e1000: FIX: firmware handover bits
Date: Tue, 06 Mar 2007 08:57:24 -0800 [thread overview]
Message-ID: <20070306165723.27434.79292.stgit@localhost.localdomain> (raw)
In-Reply-To: <20070306165721.27434.23796.stgit@localhost.localdomain>
From: Bruce Allan <bruce.w.allan@intel.com>
Upon code inspection it was spotted that the firmware handover bit get/set
mismatched, which may have resulted in management issues on PCI-E
adapters. Setting them correctly may fix some management issues such
as arp routing etc.
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
---
drivers/net/e1000/e1000_main.c | 33 ++++++++++++---------------------
1 files changed, 12 insertions(+), 21 deletions(-)
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index fff3bc0..3492f0b 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -409,25 +409,21 @@ e1000_release_hw_control(struct e1000_adapter *adapter)
{
uint32_t ctrl_ext;
uint32_t swsm;
- uint32_t extcnf;
/* Let firmware taken over control of h/w */
switch (adapter->hw.mac_type) {
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
- ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
- E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
- ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
- break;
case e1000_82573:
swsm = E1000_READ_REG(&adapter->hw, SWSM);
E1000_WRITE_REG(&adapter->hw, SWSM,
swsm & ~E1000_SWSM_DRV_LOAD);
+ break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
case e1000_ich8lan:
- extcnf = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
- extcnf & ~E1000_CTRL_EXT_DRV_LOAD);
+ ctrl_ext & ~E1000_CTRL_EXT_DRV_LOAD);
break;
default:
break;
@@ -450,26 +446,21 @@ e1000_get_hw_control(struct e1000_adapter *adapter)
{
uint32_t ctrl_ext;
uint32_t swsm;
- uint32_t extcnf;
/* Let firmware know the driver has taken over */
switch (adapter->hw.mac_type) {
- case e1000_82571:
- case e1000_82572:
- case e1000_80003es2lan:
- ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
- E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
- ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
- break;
case e1000_82573:
swsm = E1000_READ_REG(&adapter->hw, SWSM);
E1000_WRITE_REG(&adapter->hw, SWSM,
swsm | E1000_SWSM_DRV_LOAD);
break;
+ case e1000_82571:
+ case e1000_82572:
+ case e1000_80003es2lan:
case e1000_ich8lan:
- extcnf = E1000_READ_REG(&adapter->hw, EXTCNF_CTRL);
- E1000_WRITE_REG(&adapter->hw, EXTCNF_CTRL,
- extcnf | E1000_EXTCNF_CTRL_SWFLAG);
+ ctrl_ext = E1000_READ_REG(&adapter->hw, CTRL_EXT);
+ E1000_WRITE_REG(&adapter->hw, CTRL_EXT,
+ ctrl_ext | E1000_CTRL_EXT_DRV_LOAD);
break;
default:
break;
next prev parent reply other threads:[~2007-03-06 16:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-06 16:57 [PATCH 1/3] e1000: FIX: be ready for incoming irq at pci_request_irq Auke Kok
2007-03-06 16:57 ` Auke Kok [this message]
2007-03-06 16:57 ` [PATCH 3/3] e1000: FIX: Stop raw interrupts disabled nag from RT Auke Kok
2007-03-09 16:46 ` [PATCH 1/3] e1000: FIX: be ready for incoming irq at pci_request_irq Jeff Garzik
2007-03-09 17:11 ` Kok, Auke
2007-03-09 17:38 ` Jeff Garzik
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