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[TG3]: Fix link problem on Dell's onboard 5906. 

The bug is caused by code that always set
(TG3_FLAG_USE_MI_INTERRUPT | TG3_FLAG_USE_LINKCHG_REG) on all Dell's
onboard devices.  With these 2 flags set, the link status is polled
by tg3_timer() and will only work when the PHY is set up to interrupt
the MAC on link changes.  This breaks 5906 because the 5906 PHY does
not support TG3_FLAG_USE_MI_INTERRUPT the same as other PHYs.

For correctness, only Dell's onboard 5701 needs these 2 flags to be
set.  This change will fix the 5906 problem and will change other
Dell devices except 5700 and 5701 to use the more efficient
interrupt-driven link changes.

Update version to 3.77.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Michael Chan 2007-05-31 14:49:51 -07:00 committed by David S. Miller
parent 1c92b4e50e
commit 007a880d62
1 changed files with 3 additions and 2 deletions
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5
drivers/net/tg3.c
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@ -64,8 +64,8 @@
#define DRV_MODULE_NAME "tg3"
#define PFX DRV_MODULE_NAME ": "
#define DRV_MODULE_VERSION "3.76"
#define DRV_MODULE_RELDATE "May 5, 2007"
#define DRV_MODULE_VERSION "3.77"
#define DRV_MODULE_RELDATE "May 31, 2007"
#define TG3_DEF_MAC_MODE 0
#define TG3_DEF_RX_MODE 0
@ -10961,6 +10961,7 @@ static int __devinit tg3_get_invariants(struct tg3 *tp)
* upon subsystem IDs.
*/
if (tp->pdev->subsystem_vendor == PCI_VENDOR_ID_DELL &&
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701 &&
!(tp->tg3_flags2 & TG3_FLG2_PHY_SERDES)) {
tp->tg3_flags |= (TG3_FLAG_USE_MI_INTERRUPT |
TG3_FLAG_USE_LINKCHG_REG);