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Phy corruption has been observed on 2-port 82571 adapters, and is root-caused to lack of synchronization between the 2 driver instances, which conflict when attempting to access the phy via the single MDIC register. A semaphore exists for this purpose, and is now used on these designs. Because PXE &/or EFI boot code (which we cannot expect to be built with this fix) may leave the inter-instance semaphore in an invalid initial state when the driver first loads, this fix also includes a one-time (per driver load) fix-up of the semaphore initial state. Signed-off-by: dave graham <david.graham@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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| .. | ||
| 82571.c | ||
| defines.h | ||
| e1000.h | ||
| es2lan.c | ||
| ethtool.c | ||
| hw.h | ||
| ich8lan.c | ||
| lib.c | ||
| Makefile | ||
| netdev.c | ||
| param.c | ||
| phy.c | ||