diff options
| author | Ngai-Mint Kwan <ngai-mint.kwan@intel.com> | 2016-06-08 02:08:46 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2016-07-21 01:22:10 +0300 |
| commit | 5e93cbadd3e9db342e48582178b7d241097f51c4 (patch) | |
| tree | f3add981b01d6897650e8c3f0ddbe5385d57113a /drivers/net/ethernet/intel/fm10k/fm10k_pf.c | |
| parent | 9d73edee5900baff47887b36e9b97f45a7d13b6d (diff) | |
| download | linux-5e93cbadd3e9db342e48582178b7d241097f51c4.tar.xz | |
fm10k: Reset mailbox global interrupts
When a data path reset is initiated, write control to the PCIE_GMBX is
yanked from the switch manager. The switch manager writes to this
register to clear mailbox global interrupt bits as part of its mailbox
interrupt handling routine. When the device recovers from the data path
reset and these bits are not cleared, it will prevent future mailbox
global interrupts from being triggered. Upon confirming that the device
has exited from a data path reset, clear these bits to ensure the proper
functioning of the mailbox global interrupt.
Signed-off-by: Ngai-Mint Kwan <ngai-mint.kwan@intel.com>
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>
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_pf.c')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_pf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c index dc75507c9926..69e2c822db00 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c @@ -77,6 +77,10 @@ static s32 fm10k_reset_hw_pf(struct fm10k_hw *hw) if (!(reg & FM10K_IP_NOTINRESET)) err = FM10K_ERR_RESET_FAILED; + /* Reset mailbox global interrupts */ + reg = FM10K_MBX_GLOBAL_REQ_INTERRUPT | FM10K_MBX_GLOBAL_ACK_INTERRUPT; + fm10k_write_reg(hw, FM10K_GMBX, reg); + out: return err; } |