/** * e1000_write_mbx_vf - Write a message to the mailbox * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * @mbx_id: id of mailbox to write * * returns SUCCESS if it successfully copied message into the buffer **/ static s32 e1000_write_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size, u16 E1000_UNUSEDARG mbx_id) { s32 ret_val; u16 i; DEBUGFUNC("e1000_write_mbx_vf"); /* lock the mailbox to prevent pf/vf race condition */ ret_val = e1000_obtain_mbx_lock_vf(hw); if (ret_val) goto out_no_write; /* flush msg and acks as we are overwriting the message buffer */ e1000_check_for_msg_vf(hw, 0); e1000_check_for_ack_vf(hw, 0); /* copy the caller specified message to the mailbox memory buffer */ for (i = 0; i < size; i++) E1000_WRITE_REG_ARRAY(hw, E1000_VMBMEM(0), i, msg[i]); /* update stats */ hw->mbx.stats.msgs_tx++; /* Drop VFU and interrupt the PF to tell it a message has been sent */ E1000_WRITE_REG(hw, E1000_V2PMAILBOX(0), E1000_V2PMAILBOX_REQ); out_no_write: return ret_val; }
/** * e1000_write_mbx_vf - Write a message to the mailbox * @hw: pointer to the HW structure * @msg: The message buffer * @size: Length of buffer * * returns SUCCESS if it successfully copied message into the buffer **/ static s32 e1000_write_mbx_vf(struct e1000_hw *hw, u32 *msg, u16 size) { s32 err; u16 i; /* lock the mailbox to prevent pf/vf race condition */ err = e1000_obtain_mbx_lock_vf(hw); if (err) goto out_no_write; /* flush any ack or msg as we are going to overwrite mailbox */ e1000_check_for_ack_vf(hw); e1000_check_for_msg_vf(hw); /* copy the caller specified message to the mailbox memory buffer */ for (i = 0; i < size; i++) array_ew32(VMBMEM(0), i, msg[i]); /* update stats */ hw->mbx.stats.msgs_tx++; /* Drop VFU and interrupt the PF to tell it a message has been sent */ ew32(V2PMAILBOX(0), E1000_V2PMAILBOX_REQ); out_no_write: return err; }