diff options
Diffstat (limited to 'drivers/net/ethernet/intel/fm10k/fm10k_pf.c')
| -rw-r--r-- | drivers/net/ethernet/intel/fm10k/fm10k_pf.c | 24 |
1 files changed, 14 insertions, 10 deletions
diff --git a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c index 69e2c822db00..7fbd94ba6745 100644 --- a/drivers/net/ethernet/intel/fm10k/fm10k_pf.c +++ b/drivers/net/ethernet/intel/fm10k/fm10k_pf.c @@ -51,8 +51,12 @@ static s32 fm10k_reset_hw_pf(struct fm10k_hw *hw) /* shut down all rings */ err = fm10k_disable_queues_generic(hw, FM10K_MAX_QUEUES); - if (err) + if (err == FM10K_ERR_REQUESTS_PENDING) { + hw->mac.reset_while_pending++; + goto force_reset; + } else if (err) { return err; + } /* Verify that DMA is no longer active */ reg = fm10k_read_reg(hw, FM10K_DMA_CTRL); @@ -62,27 +66,27 @@ static s32 fm10k_reset_hw_pf(struct fm10k_hw *hw) /* verify the switch is ready for reset */ reg = fm10k_read_reg(hw, FM10K_DMA_CTRL2); if (!(reg & FM10K_DMA_CTRL2_SWITCH_READY)) - goto out; + return FM10K_ERR_DMA_PENDING; +force_reset: /* Inititate data path reset */ - reg |= FM10K_DMA_CTRL_DATAPATH_RESET; + reg = FM10K_DMA_CTRL_DATAPATH_RESET; fm10k_write_reg(hw, FM10K_DMA_CTRL, reg); /* Flush write and allow 100us for reset to complete */ fm10k_write_flush(hw); udelay(FM10K_RESET_TIMEOUT); - /* Verify we made it out of reset */ - reg = fm10k_read_reg(hw, FM10K_IP); - 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; + /* Verify we made it out of reset */ + reg = fm10k_read_reg(hw, FM10K_IP); + if (!(reg & FM10K_IP_NOTINRESET)) + return FM10K_ERR_RESET_FAILED; + + return 0; } /** |