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ixgbe: Remove CS4227 diagnostic code 

Testing has now shown that the diagnostic code used with the CS4227
is no longer needed, so remove it.

Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Tested-by: Darin Miller <darin.j.miller@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Mark Rustad 2015-10-02 09:23:53 -07:00 committed by Jeff Kirsher
parent ef2662b2a8
commit d206563ad8
1 changed files with 0 additions and 80 deletions
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80
drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c
View File

@ -86,79 +86,6 @@ static s32 ixgbe_write_cs4227(struct ixgbe_hw *hw, u16 reg, u16 value)
value);
}
/**
* ixgbe_check_cs4227_reg - Perform diag on a CS4227 register
* @hw: pointer to hardware structure
* @reg: the register to check
*
* Performs a diagnostic on a register in the CS4227 chip. Returns an error
* if it is not operating correctly.
* This function assumes that the caller has acquired the proper semaphore.
*/
static s32 ixgbe_check_cs4227_reg(struct ixgbe_hw *hw, u16 reg)
{
s32 status;
u32 retry;
u16 reg_val;
reg_val = (IXGBE_CS4227_EDC_MODE_DIAG << 1) | 1;
status = ixgbe_write_cs4227(hw, reg, reg_val);
if (status)
return status;
for (retry = 0; retry < IXGBE_CS4227_RETRIES; retry++) {
msleep(IXGBE_CS4227_CHECK_DELAY);
reg_val = 0xFFFF;
ixgbe_read_cs4227(hw, reg, &reg_val);
if (!reg_val)
break;
}
if (reg_val) {
hw_err(hw, "CS4227 reg 0x%04X failed diagnostic\n", reg);
return status;
}
return 0;
}
/**
* ixgbe_get_cs4227_status - Return CS4227 status
* @hw: pointer to hardware structure
*
* Performs a diagnostic on the CS4227 chip. Returns an error if it is
* not operating correctly.
* This function assumes that the caller has acquired the proper semaphore.
*/
static s32 ixgbe_get_cs4227_status(struct ixgbe_hw *hw)
{
s32 status;
u16 value = 0;
/* Exit if the diagnostic has already been performed. */
status = ixgbe_read_cs4227(hw, IXGBE_CS4227_SCRATCH, &value);
if (status)
return status;
if (value == IXGBE_CS4227_RESET_COMPLETE)
return 0;
/* Check port 0. */
status = ixgbe_check_cs4227_reg(hw, IXGBE_CS4227_LINE_SPARE24_LSB);
if (status)
return status;
status = ixgbe_check_cs4227_reg(hw, IXGBE_CS4227_HOST_SPARE24_LSB);
if (status)
return status;
/* Check port 1. */
status = ixgbe_check_cs4227_reg(hw, IXGBE_CS4227_LINE_SPARE24_LSB +
(1 << 12));
if (status)
return status;
return ixgbe_check_cs4227_reg(hw, IXGBE_CS4227_HOST_SPARE24_LSB +
(1 << 12));
}
/**
* ixgbe_read_pe - Read register from port expander
* @hw: pointer to hardware structure
@ -328,13 +255,6 @@ static void ixgbe_check_cs4227(struct ixgbe_hw *hw)
return;
}
/* Is the CS4227 working correctly? */
status = ixgbe_get_cs4227_status(hw);
if (status) {
hw_err(hw, "CS4227 status failed: %d", status);
goto out;
}
/* Record completion for next time. */
status = ixgbe_write_cs4227(hw, IXGBE_CS4227_SCRATCH,
IXGBE_CS4227_RESET_COMPLETE);