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fm10k: simplify reading PFVFLRE register 

We're doing a really convoluted bitshift and read for the PFVFLRE
register. Just reading the PFVFLRE(1), shifting it by 32, then reading
PFVFLRE(0) should be sufficient.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Krishneil Singh <krishneil.k.singh@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Jacob Keller 2017-07-10 13:23:09 -07:00 committed by Jeff Kirsher
parent 8bac58be17
commit 4abf01b43b
1 changed files with 2 additions and 4 deletions
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6
drivers/net/ethernet/intel/fm10k/fm10k_iov.c
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@ -1,5 +1,5 @@
/* Intel(R) Ethernet Switch Host Interface Driver
* Copyright(c) 2013 - 2016 Intel Corporation.
* Copyright(c) 2013 - 2017 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@ -67,10 +67,8 @@ s32 fm10k_iov_event(struct fm10k_intfc *interface)
/* read VFLRE to determine if any VFs have been reset */
do {
vflre = fm10k_read_reg(hw, FM10K_PFVFLRE(0));
vflre = fm10k_read_reg(hw, FM10K_PFVFLRE(1));
vflre <<= 32;
vflre |= fm10k_read_reg(hw, FM10K_PFVFLRE(1));
vflre = (vflre << 32) | (vflre >> 32);
vflre |= fm10k_read_reg(hw, FM10K_PFVFLRE(0));
i = iov_data->num_vfs;