/**
* ixgbe_check_for_bit_vf - Determine if a status bit was set
* @hw: pointer to the HW structure
* @mask: bitmask for bits to be tested and cleared
*
* This function is used to check for the read to clear bits within
* the V2P mailbox.
**/
static s32 ixgbe_check_for_bit_vf(struct ixgbe_hw *hw, u32 mask)
{
u32 v2p_mailbox = ixgbe_read_v2p_mailbox(hw);
s32 ret_val = IXGBE_ERR_MBX;
if (v2p_mailbox & mask)
ret_val = IXGBE_SUCCESS;
hw->mbx.v2p_mailbox &= ~mask;
return ret_val;
}
/**
* ixgbe_obtain_mbx_lock_vf - obtain mailbox lock
* @hw: pointer to the HW structure
*
* return SUCCESS if we obtained the mailbox lock
**/
static s32 ixgbe_obtain_mbx_lock_vf(struct ixgbe_hw *hw)
{
s32 ret_val = IXGBE_ERR_MBX;
/* Take ownership of the buffer */
IXGBE_WRITE_REG(hw, IXGBE_VFMAILBOX, IXGBE_VFMAILBOX_VFU);
/* reserve mailbox for vf use */
if (ixgbe_read_v2p_mailbox(hw) & IXGBE_VFMAILBOX_VFU)
ret_val = 0;
return ret_val;
}
