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/*******************************************************************************

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 1. Redistributions of source code must retain the above copyright notice,
    this list of conditions and the following disclaimer.

 2. Redistributions in binary form must reproduce the above copyright
    notice, this list of conditions and the following disclaimer in the
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 3. Neither the name of the Intel Corporation nor the names of its
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AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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***************************************************************************/

#include "fm10k_api.h"
#include "fm10k_common.h"

/**
 *  fm10k_set_mac_type - Sets MAC type
 *  @hw: pointer to the HW structure
 *
 *  This function sets the mac type of the adapter based on the
 *  vendor ID and device ID stored in the hw structure.
 **/
s32 fm10k_set_mac_type(struct fm10k_hw *hw)
{
	s32 ret_val = FM10K_SUCCESS;

	DEBUGFUNC("fm10k_set_mac_type");

	if (hw->vendor_id != FM10K_INTEL_VENDOR_ID) {
		ERROR_REPORT2(FM10K_ERROR_UNSUPPORTED,
			     "Unsupported vendor id: %x\n", hw->vendor_id);
		return FM10K_ERR_DEVICE_NOT_SUPPORTED;
	}

	switch (hw->device_id) {
	case FM10K_DEV_ID_PF:
#ifdef BOULDER_RAPIDS_HW
	case FM10K_DEV_ID_SDI_FM10420_QDA2:
#endif /* BOULDER_RAPIDS_HW */
#ifdef ATWOOD_CHANNEL_HW
	case FM10K_DEV_ID_SDI_FM10420_DA2:
#endif /* ATWOOD_CHANNEL_HW */
		hw->mac.type = fm10k_mac_pf;
		break;
	case FM10K_DEV_ID_VF:
		hw->mac.type = fm10k_mac_vf;
		break;
	default:
		ret_val = FM10K_ERR_DEVICE_NOT_SUPPORTED;
		ERROR_REPORT2(FM10K_ERROR_UNSUPPORTED,
			     "Unsupported device id: %x\n",
			     hw->device_id);
		break;
	}

	DEBUGOUT2("fm10k_set_mac_type found mac: %d, returns: %d\n",
		  hw->mac.type, ret_val);

	return ret_val;
}

/**
 *  fm10k_init_shared_code - Initialize the shared code
 *  @hw: pointer to hardware structure
 *
 *  This will assign function pointers and assign the MAC type and PHY code.
 *  Does not touch the hardware. This function must be called prior to any
 *  other function in the shared code. The fm10k_hw structure should be
 *  memset to 0 prior to calling this function.  The following fields in
 *  hw structure should be filled in prior to calling this function:
 *  hw_addr, back, device_id, vendor_id, subsystem_device_id,
 *  subsystem_vendor_id, and revision_id
 **/
s32 fm10k_init_shared_code(struct fm10k_hw *hw)
{
	s32 status;

	DEBUGFUNC("fm10k_init_shared_code");

	/* Set the mac type */
	fm10k_set_mac_type(hw);

	switch (hw->mac.type) {
	case fm10k_mac_pf:
		status = fm10k_init_ops_pf(hw);
		break;
	case fm10k_mac_vf:
		status = fm10k_init_ops_vf(hw);
		break;
	default:
		status = FM10K_ERR_DEVICE_NOT_SUPPORTED;
		break;
	}

	return status;
}

#define fm10k_call_func(hw, func, params, error) \
		 ((func) ? (func params) : (error))

/**
 *  fm10k_reset_hw - Reset the hardware to known good state
 *  @hw: pointer to hardware structure
 *
 *  This function should return the hardware to a state similar to the
 *  one it is in after being powered on.
 **/
s32 fm10k_reset_hw(struct fm10k_hw *hw)
{
	return fm10k_call_func(hw, hw->mac.ops.reset_hw, (hw),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_init_hw - Initialize the hardware
 *  @hw: pointer to hardware structure
 *
 *  Initialize the hardware by resetting and then starting the hardware
 **/
s32 fm10k_init_hw(struct fm10k_hw *hw)
{
	return fm10k_call_func(hw, hw->mac.ops.init_hw, (hw),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_stop_hw - Prepares hardware to shutdown Rx/Tx
 *  @hw: pointer to hardware structure
 *
 *  Disables Rx/Tx queues and disables the DMA engine.
 **/
s32 fm10k_stop_hw(struct fm10k_hw *hw)
{
	return fm10k_call_func(hw, hw->mac.ops.stop_hw, (hw),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_start_hw - Prepares hardware for Rx/Tx
 *  @hw: pointer to hardware structure
 *
 *  This function sets the flags indicating that the hardware is ready to
 *  begin operation.
 **/
s32 fm10k_start_hw(struct fm10k_hw *hw)
{
	return fm10k_call_func(hw, hw->mac.ops.start_hw, (hw),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_get_bus_info - Set PCI bus info
 *  @hw: pointer to hardware structure
 *
 *  Sets the PCI bus info (speed, width, type) within the fm10k_hw structure
 **/
s32 fm10k_get_bus_info(struct fm10k_hw *hw)
{
	return fm10k_call_func(hw, hw->mac.ops.get_bus_info, (hw),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_is_slot_appropriate - Indicate appropriate slot for this SKU
 *  @hw: pointer to hardware structure
 *
 *  Looks at the PCIe bus info to confirm whether or not this slot can support
 *  the necessary bandwidth for this device.
 **/
bool fm10k_is_slot_appropriate(struct fm10k_hw *hw)
{
	if (hw->mac.ops.is_slot_appropriate)
		return hw->mac.ops.is_slot_appropriate(hw);
	return true;
}

/**
 *  fm10k_update_vlan - Clear VLAN ID to VLAN filter table
 *  @hw: pointer to hardware structure
 *  @vid: VLAN ID to add to table
 *  @idx: Index indicating VF ID or PF ID in table
 *  @set: Indicates if this is a set or clear operation
 *
 *  This function adds or removes the corresponding VLAN ID from the VLAN
 *  filter table for the corresponding function.
 **/
s32 fm10k_update_vlan(struct fm10k_hw *hw, u32 vid, u8 idx, bool set)
{
	return fm10k_call_func(hw, hw->mac.ops.update_vlan, (hw, vid, idx, set),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_read_mac_addr - Reads MAC address
 *  @hw: pointer to hardware structure
 *
 *  Reads the MAC address out of the interface and stores it in the HW
 *  structures.
 **/
s32 fm10k_read_mac_addr(struct fm10k_hw *hw)
{
	return fm10k_call_func(hw, hw->mac.ops.read_mac_addr, (hw),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_update_hw_stats - Update hw statistics
 *  @hw: pointer to hardware structure
 *
 *  This function updates statistics that are related to hardware.
 * */
void fm10k_update_hw_stats(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
{
	if (hw->mac.ops.update_hw_stats)
		hw->mac.ops.update_hw_stats(hw, stats);
}

/**
 *  fm10k_rebind_hw_stats - Reset base for hw statistics
 *  @hw: pointer to hardware structure
 *
 *  This function resets the base for statistics that are related to hardware.
 * */
void fm10k_rebind_hw_stats(struct fm10k_hw *hw, struct fm10k_hw_stats *stats)
{
	if (hw->mac.ops.rebind_hw_stats)
		hw->mac.ops.rebind_hw_stats(hw, stats);
}

/**
 *  fm10k_configure_dglort_map - Configures GLORT entry and queues
 *  @hw: pointer to hardware structure
 *  @dglort: pointer to dglort configuration structure
 *
 *  Reads the configuration structure contained in dglort_cfg and uses
 *  that information to then populate a DGLORTMAP/DEC entry and the queues
 *  to which it has been assigned.
 **/
s32 fm10k_configure_dglort_map(struct fm10k_hw *hw,
			       struct fm10k_dglort_cfg *dglort)
{
	return fm10k_call_func(hw, hw->mac.ops.configure_dglort_map,
			       (hw, dglort), FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_set_dma_mask - Configures PhyAddrSpace to limit DMA to system
 *  @hw: pointer to hardware structure
 *  @dma_mask: 64 bit DMA mask required for platform
 *
 *  This function configures the endpoint to limit the access to memory
 *  beyond what is physically in the system.
 **/
void fm10k_set_dma_mask(struct fm10k_hw *hw, u64 dma_mask)
{
	if (hw->mac.ops.set_dma_mask)
		hw->mac.ops.set_dma_mask(hw, dma_mask);
}

/**
 *  fm10k_get_fault - Record a fault in one of the interface units
 *  @hw: pointer to hardware structure
 *  @type: pointer to fault type register offset
 *  @fault: pointer to memory location to record the fault
 *
 *  Record the fault register contents to the fault data structure and
 *  clear the entry from the register.
 *
 *  Returns ERR_PARAM if invalid register is specified or no error is present.
 **/
s32 fm10k_get_fault(struct fm10k_hw *hw, int type, struct fm10k_fault *fault)
{
	return fm10k_call_func(hw, hw->mac.ops.get_fault, (hw, type, fault),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_update_uc_addr - Update device unicast address
 *  @hw: pointer to the HW structure
 *  @lport: logical port ID to update - unused
 *  @mac: MAC address to add/remove from table
 *  @vid: VLAN ID to add/remove from table
 *  @add: Indicates if this is an add or remove operation
 *  @flags: flags field to indicate add and secure - unused
 *
 *  This function is used to add or remove unicast MAC addresses
 **/
s32 fm10k_update_uc_addr(struct fm10k_hw *hw, u16 lport,
			  const u8 *mac, u16 vid, bool add, u8 flags)
{
	return fm10k_call_func(hw, hw->mac.ops.update_uc_addr,
			       (hw, lport, mac, vid, add, flags),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_update_mc_addr - Update device multicast address
 *  @hw: pointer to the HW structure
 *  @lport: logical port ID to update - unused
 *  @mac: MAC address to add/remove from table
 *  @vid: VLAN ID to add/remove from table
 *  @add: Indicates if this is an add or remove operation
 *
 *  This function is used to add or remove multicast MAC addresses
 **/
s32 fm10k_update_mc_addr(struct fm10k_hw *hw, u16 lport,
			 const u8 *mac, u16 vid, bool add)
{
	return fm10k_call_func(hw, hw->mac.ops.update_mc_addr,
			       (hw, lport, mac, vid, add),
			       FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_adjust_systime - Adjust systime frequency
 *  @hw: pointer to hardware structure
 *  @ppb: adjustment rate in parts per billion
 *
 *  This function is meant to update the frequency of the clock represented
 *  by the SYSTIME register.
 **/
s32 fm10k_adjust_systime(struct fm10k_hw *hw, s32 ppb)
{
	return fm10k_call_func(hw, hw->mac.ops.adjust_systime,
			       (hw, ppb), FM10K_NOT_IMPLEMENTED);
}

/**
 *  fm10k_notify_offset - Notify switch of change in PTP offset
 *  @hw: pointer to hardware structure
 *  @offset: 64bit unsigned offset from hardware SYSTIME value
 *
 *  This function is meant to notify switch of change in the PTP offset for
 *  the hardware SYSTIME registers.
 **/
s32 fm10k_notify_offset(struct fm10k_hw *hw, u64 offset)
{
	return fm10k_call_func(hw, hw->mac.ops.notify_offset,
			       (hw, offset), FM10K_NOT_IMPLEMENTED);
}