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e1000e: fix IPMI traffic

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Some users reported that they have machines with BMCs enabled that cannot
receive IPMI traffic after e1000e is loaded.
http://marc.info/?l=e1000-devel&m=121909039127414&w=2
http://marc.info/?l=e1000-devel&m=121365543823387&w=2

This fixes the issue if they load with the new parameter = 0 by disabling
crc stripping, but leaves the performance feature on for most users.
Based on work done by Hong Zhang.

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jeff Kirsher
2008-11-14 06:45:23 +00:00
committed by David S. Miller
parent e82f54ba03
commit eb7c3adb1c
3 changed files with 51 additions and 2 deletions
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25
drivers/net/e1000e/param.c
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@@ -151,6 +151,16 @@ E1000_PARAM(KumeranLockLoss, "Enable Kumeran lock loss workaround");
*/
E1000_PARAM(WriteProtectNVM, "Write-protect NVM [WARNING: disabling this can lead to corrupted NVM]");
/*
* Enable CRC Stripping
*
* Valid Range: 0, 1
*
* Default Value: 1 (enabled)
*/
E1000_PARAM(CrcStripping, "Enable CRC Stripping, disable if your BMC needs " \
"the CRC");
struct e1000_option {
enum { enable_option, range_option, list_option } type;
const char *name;
@@ -404,6 +414,21 @@ void __devinit e1000e_check_options(struct e1000_adapter *adapter)
adapter->flags |= FLAG_SMART_POWER_DOWN;
}
}
{ /* CRC Stripping */
const struct e1000_option opt = {
.type = enable_option,
.name = "CRC Stripping",
.err = "defaulting to enabled",
.def = OPTION_ENABLED
};
if (num_CrcStripping > bd) {
unsigned int crc_stripping = CrcStripping[bd];
e1000_validate_option(&crc_stripping, &opt, adapter);
if (crc_stripping == OPTION_ENABLED)
adapter->flags2 |= FLAG2_CRC_STRIPPING;
}
}
{ /* Kumeran Lock Loss Workaround */
const struct e1000_option opt = {
.type = enable_option,