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| author | Bruce Allan <bruce.w.allan@intel.com> | 2009-07-01 13:29:08 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-07-03 20:09:42 -0700 |
| commit | 7d3cabbcc86f7f69c47cb20c23ee84350ae6cfbb (patch) | |
| tree | 9fb7d845cbcc5da255dc2cf9dd32a612ff29456b /drivers/net/e1000e/hw.h | |
| parent | 906e8d9792b1c4a8b58c1383f4c00fc4c9936fc3 (diff) | |
| download | linux-7d3cabbcc86f7f69c47cb20c23ee84350ae6cfbb.tar.gz linux-7d3cabbcc86f7f69c47cb20c23ee84350ae6cfbb.tar.bz2 linux-7d3cabbcc86f7f69c47cb20c23ee84350ae6cfbb.zip | |
e1000e: disable K1 at 1000Mbps for 82577/82578
This workaround is required for an issue in hardware where noise on the
interconnect between the MAC and PHY could be generated by a lower power
mode (K1) at 1000Mbps resulting in bad packets. Disable K1 while at 1000
Mbps but keep it enabled for 10/100Mbps and when the cable is disconnected.
Signed-off-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/e1000e/hw.h')
| -rw-r--r-- | drivers/net/e1000e/hw.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/e1000e/hw.h b/drivers/net/e1000e/hw.h index 163c1c0cfee7..fd44d9f90769 100644 --- a/drivers/net/e1000e/hw.h +++ b/drivers/net/e1000e/hw.h @@ -215,6 +215,7 @@ enum e1e_registers { E1000_SWSM = 0x05B50, /* SW Semaphore */ E1000_FWSM = 0x05B54, /* FW Semaphore */ E1000_SWSM2 = 0x05B58, /* Driver-only SW semaphore */ + E1000_CRC_OFFSET = 0x05F50, /* CRC Offset register */ E1000_HICR = 0x08F00, /* Host Interface Control */ }; @@ -302,6 +303,9 @@ enum e1e_registers { #define E1000_KMRNCTRLSTA_REN 0x00200000 #define E1000_KMRNCTRLSTA_DIAG_OFFSET 0x3 /* Kumeran Diagnostic */ #define E1000_KMRNCTRLSTA_DIAG_NELPBK 0x1000 /* Nearend Loopback mode */ +#define E1000_KMRNCTRLSTA_K1_CONFIG 0x7 +#define E1000_KMRNCTRLSTA_K1_ENABLE 0x140E +#define E1000_KMRNCTRLSTA_K1_DISABLE 0x1400 #define IFE_PHY_EXTENDED_STATUS_CONTROL 0x10 #define IFE_PHY_SPECIAL_CONTROL 0x11 /* 100BaseTx PHY Special Control */ |