/**
* igb_write_mbx_pf - Places a message in the mailbox
* @hw: pointer to the HW structure
* @msg: The message buffer
* @size: Length of buffer
* @vf_number: the VF index
*
* returns SUCCESS if it successfully copied message into the buffer
**/
static s32 igb_write_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size,
u16 vf_number)
{
s32 ret_val;
u16 i;
/* lock the mailbox to prevent pf/vf race condition */
ret_val = igb_obtain_mbx_lock_pf(hw, vf_number);
if (ret_val)
goto out_no_write;
/* flush msg and acks as we are overwriting the message buffer */
igb_check_for_msg_pf(hw, vf_number);
igb_check_for_ack_pf(hw, vf_number);
/* copy the caller specified message to the mailbox memory buffer */
for (i = 0; i < size; i++)
array_wr32(E1000_VMBMEM(vf_number), i, msg[i]);
/* Interrupt VF to tell it a message has been sent and release buffer*/
wr32(E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_STS);
/* update stats */
hw->mbx.stats.msgs_tx++;
out_no_write:
return ret_val;
}
static s32 igb_write_mbx_pf(struct e1000_hw *hw, u32 *msg, u16 size,
u16 vf_number)
{
s32 ret_val;
u16 i;
/* */
ret_val = igb_obtain_mbx_lock_pf(hw, vf_number);
if (ret_val)
goto out_no_write;
/* */
igb_check_for_msg_pf(hw, vf_number);
igb_check_for_ack_pf(hw, vf_number);
/* */
for (i = 0; i < size; i++)
array_wr32(E1000_VMBMEM(vf_number), i, msg[i]);
/* */
wr32(E1000_P2VMAILBOX(vf_number), E1000_P2VMAILBOX_STS);
/* */
hw->mbx.stats.msgs_tx++;
out_no_write:
return ret_val;
}
