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e1000e: Fix not generating an error on invalid load parameter 

Valid values for InterruptThrottleRate are 10-100000, or one of
0, 1, 3, 4.  '2' is not valid.  This is a legacy from the branching
from the e1000 driver code that e1000e was based from.

Prior to this patch, if the e1000e driver  was loaded with a forced
invalid InterruptThrottleRate of '2', then no throttle rate would be
set and no error message generated.

Now, a message will be generated that an invalid value was used and the
value for InterruptThrottleRate will be set to the default value.

Signed-off-by: Dave Ertman <davidx.m.ertman@intel.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
David Ertman 2014-02-26 00:02:24 +00:00 committed by Jeff Kirsher
parent 74f350ee08
commit 5bb7317608
1 changed files with 6 additions and 0 deletions
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6
drivers/net/ethernet/intel/e1000e/param.c
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@ -374,6 +374,12 @@ void e1000e_check_options(struct e1000_adapter *adapter)
"%s set to dynamic mode\n", opt.name);
adapter->itr = 20000;
break;
case 2:
dev_info(&adapter->pdev->dev,
"%s Invalid mode - setting default\n",
opt.name);
adapter->itr_setting = opt.def;
/* fall-through */
case 3:
dev_info(&adapter->pdev->dev,
"%s set to dynamic conservative mode\n",