/*
 * PMC-Sierra SPC 8001 SAS/SATA based host adapters driver
 *
 * Copyright (c) 2008-2009 USI Co., Ltd.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions, and the following disclaimer,
 *    without modification.
 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
 *    substantially similar to the "NO WARRANTY" disclaimer below
 *    ("Disclaimer") and any redistribution must be conditioned upon
 *    including a substantially similar Disclaimer requirement for further
 *    binary redistribution.
 * 3. Neither the names of the above-listed copyright holders nor the names
 *    of any contributors may be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * Alternatively, this software may be distributed under the terms of the
 * GNU General Public License ("GPL") version 2 as published by the Free
 * Software Foundation.
 *
 * NO WARRANTY
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGES.
 *
 */
 #include <linux/slab.h>
 #include "pm8001_sas.h"
 #include "pm8001_hwi.h"
 #include "pm8001_chips.h"
 #include "pm8001_ctl.h"

/**
 * read_main_config_table - read the configure table and save it.
 * @pm8001_ha: our hba card information
 */
static void read_main_config_table(struct pm8001_hba_info *pm8001_ha)
{
	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.signature	=
				pm8001_mr32(address, 0x00);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.interface_rev =
				pm8001_mr32(address, 0x04);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.firmware_rev	=
				pm8001_mr32(address, 0x08);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_out_io	=
				pm8001_mr32(address, 0x0C);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.max_sgl	=
				pm8001_mr32(address, 0x10);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.ctrl_cap_flag =
				pm8001_mr32(address, 0x14);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.gst_offset	=
				pm8001_mr32(address, 0x18);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_queue_offset =
		pm8001_mr32(address, MAIN_IBQ_OFFSET);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_queue_offset =
		pm8001_mr32(address, MAIN_OBQ_OFFSET);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.hda_mode_flag	=
		pm8001_mr32(address, MAIN_HDA_FLAGS_OFFSET);

	/* read analog Setting offset from the configuration table */
	pm8001_ha->main_cfg_tbl.pm8001_tbl.anolog_setup_table_offset =
		pm8001_mr32(address, MAIN_ANALOG_SETUP_OFFSET);

	/* read Error Dump Offset and Length */
	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset0 =
		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_OFFSET);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length0 =
		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP0_LENGTH);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_offset1 =
		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_OFFSET);
	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_dump_length1 =
		pm8001_mr32(address, MAIN_FATAL_ERROR_RDUMP1_LENGTH);
}

/**
 * read_general_status_table - read the general status table and save it.
 * @pm8001_ha: our hba card information
 */
static void read_general_status_table(struct pm8001_hba_info *pm8001_ha)
{
	void __iomem *address = pm8001_ha->general_stat_tbl_addr;
	pm8001_ha->gs_tbl.pm8001_tbl.gst_len_mpistate	=
				pm8001_mr32(address, 0x00);
	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state0	=
				pm8001_mr32(address, 0x04);
	pm8001_ha->gs_tbl.pm8001_tbl.iq_freeze_state1	=
				pm8001_mr32(address, 0x08);
	pm8001_ha->gs_tbl.pm8001_tbl.msgu_tcnt		=
				pm8001_mr32(address, 0x0C);
	pm8001_ha->gs_tbl.pm8001_tbl.iop_tcnt		=
				pm8001_mr32(address, 0x10);
	pm8001_ha->gs_tbl.pm8001_tbl.rsvd		=
				pm8001_mr32(address, 0x14);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[0]	=
				pm8001_mr32(address, 0x18);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[1]	=
				pm8001_mr32(address, 0x1C);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[2]	=
				pm8001_mr32(address, 0x20);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[3]	=
				pm8001_mr32(address, 0x24);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[4]	=
				pm8001_mr32(address, 0x28);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[5]	=
				pm8001_mr32(address, 0x2C);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[6]	=
				pm8001_mr32(address, 0x30);
	pm8001_ha->gs_tbl.pm8001_tbl.phy_state[7]	=
				pm8001_mr32(address, 0x34);
	pm8001_ha->gs_tbl.pm8001_tbl.gpio_input_val	=
				pm8001_mr32(address, 0x38);
	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[0]		=
				pm8001_mr32(address, 0x3C);
	pm8001_ha->gs_tbl.pm8001_tbl.rsvd1[1]		=
				pm8001_mr32(address, 0x40);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[0]	=
				pm8001_mr32(address, 0x44);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[1]	=
				pm8001_mr32(address, 0x48);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[2]	=
				pm8001_mr32(address, 0x4C);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[3]	=
				pm8001_mr32(address, 0x50);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[4]	=
				pm8001_mr32(address, 0x54);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[5]	=
				pm8001_mr32(address, 0x58);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[6]	=
				pm8001_mr32(address, 0x5C);
	pm8001_ha->gs_tbl.pm8001_tbl.recover_err_info[7]	=
				pm8001_mr32(address, 0x60);
}

/**
 * read_inbnd_queue_table - read the inbound queue table and save it.
 * @pm8001_ha: our hba card information
 */
static void read_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
{
	int i;
	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
	for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
		u32 offset = i * 0x20;
		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar =
		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
		pm8001_ha->inbnd_q_tbl[i].pi_offset =
			pm8001_mr32(address, (offset + 0x18));
	}
}

/**
 * read_outbnd_queue_table - read the outbound queue table and save it.
 * @pm8001_ha: our hba card information
 */
static void read_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha)
{
	int i;
	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
		u32 offset = i * 0x24;
		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar =
		      get_pci_bar_index(pm8001_mr32(address, (offset + 0x14)));
		pm8001_ha->outbnd_q_tbl[i].ci_offset =
			pm8001_mr32(address, (offset + 0x18));
	}
}

/**
 * init_default_table_values - init the default table.
 * @pm8001_ha: our hba card information
 */
static void init_default_table_values(struct pm8001_hba_info *pm8001_ha)
{
	int i;
	u32 offsetib, offsetob;
	void __iomem *addressib = pm8001_ha->inbnd_q_tbl_addr;
	void __iomem *addressob = pm8001_ha->outbnd_q_tbl_addr;
	u32 ib_offset = pm8001_ha->ib_offset;
	u32 ob_offset = pm8001_ha->ob_offset;
	u32 ci_offset = pm8001_ha->ci_offset;
	u32 pi_offset = pm8001_ha->pi_offset;

	pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd		= 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3	= 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7	= 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3	= 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7	= 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid0_3 =
									 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ITNexus_event_pid4_7 =
									 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid0_3 = 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_ssp_event_pid4_7 = 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid0_3 = 0;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_tgt_smp_event_pid4_7 = 0;

	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr		=
		pm8001_ha->memoryMap.region[AAP1].phys_addr_hi;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr		=
		pm8001_ha->memoryMap.region[AAP1].phys_addr_lo;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size		=
		PM8001_EVENT_LOG_SIZE;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option		= 0x01;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr	=
		pm8001_ha->memoryMap.region[IOP].phys_addr_hi;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr	=
		pm8001_ha->memoryMap.region[IOP].phys_addr_lo;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size		=
		PM8001_EVENT_LOG_SIZE;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option		= 0x01;
	pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt		= 0x01;
	for (i = 0; i < PM8001_MAX_INB_NUM; i++) {
		pm8001_ha->inbnd_q_tbl[i].element_pri_size_cnt	=
			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x00<<30);
		pm8001_ha->inbnd_q_tbl[i].upper_base_addr	=
			pm8001_ha->memoryMap.region[ib_offset + i].phys_addr_hi;
		pm8001_ha->inbnd_q_tbl[i].lower_base_addr	=
		pm8001_ha->memoryMap.region[ib_offset + i].phys_addr_lo;
		pm8001_ha->inbnd_q_tbl[i].base_virt		=
		  (u8 *)pm8001_ha->memoryMap.region[ib_offset + i].virt_ptr;
		pm8001_ha->inbnd_q_tbl[i].total_length		=
			pm8001_ha->memoryMap.region[ib_offset + i].total_len;
		pm8001_ha->inbnd_q_tbl[i].ci_upper_base_addr	=
			pm8001_ha->memoryMap.region[ci_offset + i].phys_addr_hi;
		pm8001_ha->inbnd_q_tbl[i].ci_lower_base_addr	=
			pm8001_ha->memoryMap.region[ci_offset + i].phys_addr_lo;
		pm8001_ha->inbnd_q_tbl[i].ci_virt		=
			pm8001_ha->memoryMap.region[ci_offset + i].virt_ptr;
		offsetib = i * 0x20;
		pm8001_ha->inbnd_q_tbl[i].pi_pci_bar		=
			get_pci_bar_index(pm8001_mr32(addressib,
				(offsetib + 0x14)));
		pm8001_ha->inbnd_q_tbl[i].pi_offset		=
			pm8001_mr32(addressib, (offsetib + 0x18));
		pm8001_ha->inbnd_q_tbl[i].producer_idx		= 0;
		pm8001_ha->inbnd_q_tbl[i].consumer_index	= 0;
	}
	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++) {
		pm8001_ha->outbnd_q_tbl[i].element_size_cnt	=
			PM8001_MPI_QUEUE | (pm8001_ha->iomb_size << 16) | (0x01<<30);
		pm8001_ha->outbnd_q_tbl[i].upper_base_addr	=
			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_hi;
		pm8001_ha->outbnd_q_tbl[i].lower_base_addr	=
			pm8001_ha->memoryMap.region[ob_offset + i].phys_addr_lo;
		pm8001_ha->outbnd_q_tbl[i].base_virt		=
		  (u8 *)pm8001_ha->memoryMap.region[ob_offset + i].virt_ptr;
		pm8001_ha->outbnd_q_tbl[i].total_length		=
			pm8001_ha->memoryMap.region[ob_offset + i].total_len;
		pm8001_ha->outbnd_q_tbl[i].pi_upper_base_addr	=
			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_hi;
		pm8001_ha->outbnd_q_tbl[i].pi_lower_base_addr	=
			pm8001_ha->memoryMap.region[pi_offset + i].phys_addr_lo;
		pm8001_ha->outbnd_q_tbl[i].interrup_vec_cnt_delay	=
			0 | (10 << 16) | (i << 24);
		pm8001_ha->outbnd_q_tbl[i].pi_virt		=
			pm8001_ha->memoryMap.region[pi_offset + i].virt_ptr;
		offsetob = i * 0x24;
		pm8001_ha->outbnd_q_tbl[i].ci_pci_bar		=
			get_pci_bar_index(pm8001_mr32(addressob,
			offsetob + 0x14));
		pm8001_ha->outbnd_q_tbl[i].ci_offset		=
			pm8001_mr32(addressob, (offsetob + 0x18));
		pm8001_ha->outbnd_q_tbl[i].consumer_idx		= 0;
		pm8001_ha->outbnd_q_tbl[i].producer_index	= 0;
	}
}

/**
 * update_main_config_table - update the main default table to the HBA.
 * @pm8001_ha: our hba card information
 */
static void update_main_config_table(struct pm8001_hba_info *pm8001_ha)
{
	void __iomem *address = pm8001_ha->main_cfg_tbl_addr;
	pm8001_mw32(address, 0x24,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.inbound_q_nppd_hppd);
	pm8001_mw32(address, 0x28,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid0_3);
	pm8001_mw32(address, 0x2C,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_hw_event_pid4_7);
	pm8001_mw32(address, 0x30,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid0_3);
	pm8001_mw32(address, 0x34,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.outbound_ncq_event_pid4_7);
	pm8001_mw32(address, 0x38,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.
					outbound_tgt_ITNexus_event_pid0_3);
	pm8001_mw32(address, 0x3C,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.
					outbound_tgt_ITNexus_event_pid4_7);
	pm8001_mw32(address, 0x40,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.
					outbound_tgt_ssp_event_pid0_3);
	pm8001_mw32(address, 0x44,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.
					outbound_tgt_ssp_event_pid4_7);
	pm8001_mw32(address, 0x48,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.
					outbound_tgt_smp_event_pid0_3);
	pm8001_mw32(address, 0x4C,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.
					outbound_tgt_smp_event_pid4_7);
	pm8001_mw32(address, 0x50,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_event_log_addr);
	pm8001_mw32(address, 0x54,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_event_log_addr);
	pm8001_mw32(address, 0x58,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_size);
	pm8001_mw32(address, 0x5C,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.event_log_option);
	pm8001_mw32(address, 0x60,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.upper_iop_event_log_addr);
	pm8001_mw32(address, 0x64,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.lower_iop_event_log_addr);
	pm8001_mw32(address, 0x68,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_size);
	pm8001_mw32(address, 0x6C,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.iop_event_log_option);
	pm8001_mw32(address, 0x70,
		pm8001_ha->main_cfg_tbl.pm8001_tbl.fatal_err_interrupt);
}

/**
 * update_inbnd_queue_table - update the inbound queue table to the HBA.
 * @pm8001_ha: our hba card information
 * @number: entry in the queue
 */
static void update_inbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
				     int number)
{
	void __iomem *address = pm8001_ha->inbnd_q_tbl_addr;
	u16 offset = number * 0x20;
	pm8001_mw32(address, offset + 0x00,
		pm8001_ha->inbnd_q_tbl[number].element_pri_size_cnt);
	pm8001_mw32(address, offset + 0x04,
		pm8001_ha->inbnd_q_tbl[number].upper_base_addr);
	pm8001_mw32(address, offset + 0x08,
		pm8001_ha->inbnd_q_tbl[number].lower_base_addr);
	pm8001_mw32(address, offset + 0x0C,
		pm8001_ha->inbnd_q_tbl[number].ci_upper_base_addr);
	pm8001_mw32(address, offset + 0x10,
		pm8001_ha->inbnd_q_tbl[number].ci_lower_base_addr);
}

/**
 * update_outbnd_queue_table - update the outbound queue table to the HBA.
 * @pm8001_ha: our hba card information
 * @number: entry in the queue
 */
static void update_outbnd_queue_table(struct pm8001_hba_info *pm8001_ha,
				      int number)
{
	void __iomem *address = pm8001_ha->outbnd_q_tbl_addr;
	u16 offset = number * 0x24;
	pm8001_mw32(address, offset + 0x00,
		pm8001_ha->outbnd_q_tbl[number].element_size_cnt);
	pm8001_mw32(address, offset + 0x04,
		pm8001_ha->outbnd_q_tbl[number].upper_base_addr);
	pm8001_mw32(address, offset + 0x08,
		pm8001_ha->outbnd_q_tbl[number].lower_base_addr);
	pm8001_mw32(address, offset + 0x0C,
		pm8001_ha->outbnd_q_tbl[number].pi_upper_base_addr);
	pm8001_mw32(address, offset + 0x10,
		pm8001_ha->outbnd_q_tbl[number].pi_lower_base_addr);
	pm8001_mw32(address, offset + 0x1C,
		pm8001_ha->outbnd_q_tbl[number].interrup_vec_cnt_delay);
}

/**
 * pm8001_bar4_shift - function is called to shift BAR base address
 * @pm8001_ha : our hba card infomation
 * @shiftValue : shifting value in memory bar.
 */
int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue)
{
	u32 regVal;
	unsigned long start;

	/* program the inbound AXI translation Lower Address */
	pm8001_cw32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW, shiftValue);

	/* confirm the setting is written */
	start = jiffies + HZ; /* 1 sec */
	do {
		regVal = pm8001_cr32(pm8001_ha, 1, SPC_IBW_AXI_TRANSLATION_LOW);
	} while ((regVal != shiftValue) && time_before(jiffies, start));

	if (regVal != shiftValue) {
		pm8001_dbg(pm8001_ha, INIT,
			   "TIMEOUT:SPC_IBW_AXI_TRANSLATION_LOW = 0x%x\n",
			   regVal);
		return -1;
	}
	return 0;
}

/**
 * mpi_set_phys_g3_with_ssc
 * @pm8001_ha: our hba card information
 * @SSCbit: set SSCbit to 0 to disable all phys ssc; 1 to enable all phys ssc.
 */
static void mpi_set_phys_g3_with_ssc(struct pm8001_hba_info *pm8001_ha,
				     u32 SSCbit)
{
	u32 offset, i;
	unsigned long flags;

#define SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR 0x00030000
#define SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR 0x00040000
#define SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET 0x1074
#define SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET 0x1074
#define PHY_G3_WITHOUT_SSC_BIT_SHIFT 12
#define PHY_G3_WITH_SSC_BIT_SHIFT 13
#define SNW3_PHY_CAPABILITIES_PARITY 31

   /*
    * Using shifted destination address 0x3_0000:0x1074 + 0x4000*N (N=0:3)
    * Using shifted destination address 0x4_0000:0x1074 + 0x4000*(N-4) (N=4:7)
    */
	spin_lock_irqsave(&pm8001_ha->lock, flags);
	if (-1 == pm8001_bar4_shift(pm8001_ha,
				SAS2_SETTINGS_LOCAL_PHY_0_3_SHIFT_ADDR)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		return;
	}

	for (i = 0; i < 4; i++) {
		offset = SAS2_SETTINGS_LOCAL_PHY_0_3_OFFSET + 0x4000 * i;
		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
	}
	/* shift membase 3 for SAS2_SETTINGS_LOCAL_PHY 4 - 7 */
	if (-1 == pm8001_bar4_shift(pm8001_ha,
				SAS2_SETTINGS_LOCAL_PHY_4_7_SHIFT_ADDR)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		return;
	}
	for (i = 4; i < 8; i++) {
		offset = SAS2_SETTINGS_LOCAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
		pm8001_cw32(pm8001_ha, 2, offset, 0x80001501);
	}
	/*************************************************************
	Change the SSC upspreading value to 0x0 so that upspreading is disabled.
	Device MABC SMOD0 Controls
	Address: (via MEMBASE-III):
	Using shifted destination address 0x0_0000: with Offset 0xD8

	31:28 R/W Reserved Do not change
	27:24 R/W SAS_SMOD_SPRDUP 0000
	23:20 R/W SAS_SMOD_SPRDDN 0000
	19:0  R/W  Reserved Do not change
	Upon power-up this register will read as 0x8990c016,
	and I would like you to change the SAS_SMOD_SPRDUP bits to 0b0000
	so that the written value will be 0x8090c016.
	This will ensure only down-spreading SSC is enabled on the SPC.
	*************************************************************/
	pm8001_cr32(pm8001_ha, 2, 0xd8);
	pm8001_cw32(pm8001_ha, 2, 0xd8, 0x8000C016);

	/*set the shifted destination address to 0x0 to avoid error operation */
	pm8001_bar4_shift(pm8001_ha, 0x0);
	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
	return;
}

/**
 * mpi_set_open_retry_interval_reg
 * @pm8001_ha: our hba card information
 * @interval: interval time for each OPEN_REJECT (RETRY). The units are in 1us.
 */
static void mpi_set_open_retry_interval_reg(struct pm8001_hba_info *pm8001_ha,
					    u32 interval)
{
	u32 offset;
	u32 value;
	u32 i;
	unsigned long flags;

#define OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR 0x00030000
#define OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR 0x00040000
#define OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET 0x30B4
#define OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET 0x30B4
#define OPEN_RETRY_INTERVAL_REG_MASK 0x0000FFFF

	value = interval & OPEN_RETRY_INTERVAL_REG_MASK;
	spin_lock_irqsave(&pm8001_ha->lock, flags);
	/* shift bar and set the OPEN_REJECT(RETRY) interval time of PHY 0 -3.*/
	if (-1 == pm8001_bar4_shift(pm8001_ha,
			     OPEN_RETRY_INTERVAL_PHY_0_3_SHIFT_ADDR)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		return;
	}
	for (i = 0; i < 4; i++) {
		offset = OPEN_RETRY_INTERVAL_PHY_0_3_OFFSET + 0x4000 * i;
		pm8001_cw32(pm8001_ha, 2, offset, value);
	}

	if (-1 == pm8001_bar4_shift(pm8001_ha,
			     OPEN_RETRY_INTERVAL_PHY_4_7_SHIFT_ADDR)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		return;
	}
	for (i = 4; i < 8; i++) {
		offset = OPEN_RETRY_INTERVAL_PHY_4_7_OFFSET + 0x4000 * (i-4);
		pm8001_cw32(pm8001_ha, 2, offset, value);
	}
	/*set the shifted destination address to 0x0 to avoid error operation */
	pm8001_bar4_shift(pm8001_ha, 0x0);
	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
	return;
}

/**
 * mpi_init_check - check firmware initialization status.
 * @pm8001_ha: our hba card information
 */
static int mpi_init_check(struct pm8001_hba_info *pm8001_ha)
{
	u32 max_wait_count;
	u32 value;
	u32 gst_len_mpistate;
	/* Write bit0=1 to Inbound DoorBell Register to tell the SPC FW the
	table is updated */
	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_UPDATE);
	/* wait until Inbound DoorBell Clear Register toggled */
	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
	do {
		udelay(1);
		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
		value &= SPC_MSGU_CFG_TABLE_UPDATE;
	} while ((value != 0) && (--max_wait_count));

	if (!max_wait_count)
		return -1;
	/* check the MPI-State for initialization */
	gst_len_mpistate =
		pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
		GST_GSTLEN_MPIS_OFFSET);
	if (GST_MPI_STATE_INIT != (gst_len_mpistate & GST_MPI_STATE_MASK))
		return -1;
	/* check MPI Initialization error */
	gst_len_mpistate = gst_len_mpistate >> 16;
	if (0x0000 != gst_len_mpistate)
		return -1;
	return 0;
}

/**
 * check_fw_ready - The LLDD check if the FW is ready, if not, return error.
 * @pm8001_ha: our hba card information
 */
static int check_fw_ready(struct pm8001_hba_info *pm8001_ha)
{
	u32 value, value1;
	u32 max_wait_count;
	/* check error state */
	value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
	value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
	/* check AAP error */
	if (SCRATCH_PAD1_ERR == (value & SCRATCH_PAD_STATE_MASK)) {
		/* error state */
		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
		return -1;
	}

	/* check IOP error */
	if (SCRATCH_PAD2_ERR == (value1 & SCRATCH_PAD_STATE_MASK)) {
		/* error state */
		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
		return -1;
	}

	/* bit 4-31 of scratch pad1 should be zeros if it is not
	in error state*/
	if (value & SCRATCH_PAD1_STATE_MASK) {
		/* error case */
		pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0);
		return -1;
	}

	/* bit 2, 4-31 of scratch pad2 should be zeros if it is not
	in error state */
	if (value1 & SCRATCH_PAD2_STATE_MASK) {
		/* error case */
		return -1;
	}

	max_wait_count = 1 * 1000 * 1000;/* 1 sec timeout */

	/* wait until scratch pad 1 and 2 registers in ready state  */
	do {
		udelay(1);
		value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
			& SCRATCH_PAD1_RDY;
		value1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
			& SCRATCH_PAD2_RDY;
		if ((--max_wait_count) == 0)
			return -1;
	} while ((value != SCRATCH_PAD1_RDY) || (value1 != SCRATCH_PAD2_RDY));
	return 0;
}

static void init_pci_device_addresses(struct pm8001_hba_info *pm8001_ha)
{
	void __iomem *base_addr;
	u32	value;
	u32	offset;
	u32	pcibar;
	u32	pcilogic;

	value = pm8001_cr32(pm8001_ha, 0, 0x44);
	offset = value & 0x03FFFFFF;
	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 Offset: %x\n", offset);
	pcilogic = (value & 0xFC000000) >> 26;
	pcibar = get_pci_bar_index(pcilogic);
	pm8001_dbg(pm8001_ha, INIT, "Scratchpad 0 PCI BAR: %d\n", pcibar);
	pm8001_ha->main_cfg_tbl_addr = base_addr =
		pm8001_ha->io_mem[pcibar].memvirtaddr + offset;
	pm8001_ha->general_stat_tbl_addr =
		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x18);
	pm8001_ha->inbnd_q_tbl_addr =
		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x1C);
	pm8001_ha->outbnd_q_tbl_addr =
		base_addr + pm8001_cr32(pm8001_ha, pcibar, offset + 0x20);
}

/**
 * pm8001_chip_init - the main init function that initialize whole PM8001 chip.
 * @pm8001_ha: our hba card information
 */
static int pm8001_chip_init(struct pm8001_hba_info *pm8001_ha)
{
	u8 i = 0;
	u16 deviceid;
	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
	/* 8081 controllers need BAR shift to access MPI space
	* as this is shared with BIOS data */
	if (deviceid == 0x8081 || deviceid == 0x0042) {
		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
			pm8001_dbg(pm8001_ha, FAIL,
				   "Shift Bar4 to 0x%x failed\n",
				   GSM_SM_BASE);
			return -1;
		}
	}
	/* check the firmware status */
	if (-1 == check_fw_ready(pm8001_ha)) {
		pm8001_dbg(pm8001_ha, FAIL, "Firmware is not ready!\n");
		return -EBUSY;
	}

	/* Initialize pci space address eg: mpi offset */
	init_pci_device_addresses(pm8001_ha);
	init_default_table_values(pm8001_ha);
	read_main_config_table(pm8001_ha);
	read_general_status_table(pm8001_ha);
	read_inbnd_queue_table(pm8001_ha);
	read_outbnd_queue_table(pm8001_ha);
	/* update main config table ,inbound table and outbound table */
	update_main_config_table(pm8001_ha);
	for (i = 0; i < PM8001_MAX_INB_NUM; i++)
		update_inbnd_queue_table(pm8001_ha, i);
	for (i = 0; i < PM8001_MAX_OUTB_NUM; i++)
		update_outbnd_queue_table(pm8001_ha, i);
	/* 8081 controller donot require these operations */
	if (deviceid != 0x8081 && deviceid != 0x0042) {
		mpi_set_phys_g3_with_ssc(pm8001_ha, 0);
		/* 7->130ms, 34->500ms, 119->1.5s */
		mpi_set_open_retry_interval_reg(pm8001_ha, 119);
	}
	/* notify firmware update finished and check initialization status */
	if (0 == mpi_init_check(pm8001_ha)) {
		pm8001_dbg(pm8001_ha, INIT, "MPI initialize successful!\n");
	} else
		return -EBUSY;
	/*This register is a 16-bit timer with a resolution of 1us. This is the
	timer used for interrupt delay/coalescing in the PCIe Application Layer.
	Zero is not a valid value. A value of 1 in the register will cause the
	interrupts to be normal. A value greater than 1 will cause coalescing
	delays.*/
	pm8001_cw32(pm8001_ha, 1, 0x0033c0, 0x1);
	pm8001_cw32(pm8001_ha, 1, 0x0033c4, 0x0);
	return 0;
}

static int mpi_uninit_check(struct pm8001_hba_info *pm8001_ha)
{
	u32 max_wait_count;
	u32 value;
	u32 gst_len_mpistate;
	u16 deviceid;
	pci_read_config_word(pm8001_ha->pdev, PCI_DEVICE_ID, &deviceid);
	if (deviceid == 0x8081 || deviceid == 0x0042) {
		if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_SM_BASE)) {
			pm8001_dbg(pm8001_ha, FAIL,
				   "Shift Bar4 to 0x%x failed\n",
				   GSM_SM_BASE);
			return -1;
		}
	}
	init_pci_device_addresses(pm8001_ha);
	/* Write bit1=1 to Inbound DoorBell Register to tell the SPC FW the
	table is stop */
	pm8001_cw32(pm8001_ha, 0, MSGU_IBDB_SET, SPC_MSGU_CFG_TABLE_RESET);

	/* wait until Inbound DoorBell Clear Register toggled */
	max_wait_count = 1 * 1000 * 1000;/* 1 sec */
	do {
		udelay(1);
		value = pm8001_cr32(pm8001_ha, 0, MSGU_IBDB_SET);
		value &= SPC_MSGU_CFG_TABLE_RESET;
	} while ((value != 0) && (--max_wait_count));

	if (!max_wait_count) {
		pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT:IBDB value/=0x%x\n",
			   value);
		return -1;
	}

	/* check the MPI-State for termination in progress */
	/* wait until Inbound DoorBell Clear Register toggled */
	max_wait_count = 1 * 1000 * 1000;  /* 1 sec */
	do {
		udelay(1);
		gst_len_mpistate =
			pm8001_mr32(pm8001_ha->general_stat_tbl_addr,
			GST_GSTLEN_MPIS_OFFSET);
		if (GST_MPI_STATE_UNINIT ==
			(gst_len_mpistate & GST_MPI_STATE_MASK))
			break;
	} while (--max_wait_count);
	if (!max_wait_count) {
		pm8001_dbg(pm8001_ha, FAIL, " TIME OUT MPI State = 0x%x\n",
			   gst_len_mpistate & GST_MPI_STATE_MASK);
		return -1;
	}
	return 0;
}

/**
 * soft_reset_ready_check - Function to check FW is ready for soft reset.
 * @pm8001_ha: our hba card information
 */
static u32 soft_reset_ready_check(struct pm8001_hba_info *pm8001_ha)
{
	u32 regVal, regVal1, regVal2;
	if (mpi_uninit_check(pm8001_ha) != 0) {
		pm8001_dbg(pm8001_ha, FAIL, "MPI state is not ready\n");
		return -1;
	}
	/* read the scratch pad 2 register bit 2 */
	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2)
		& SCRATCH_PAD2_FWRDY_RST;
	if (regVal == SCRATCH_PAD2_FWRDY_RST) {
		pm8001_dbg(pm8001_ha, INIT, "Firmware is ready for reset.\n");
	} else {
		unsigned long flags;
		/* Trigger NMI twice via RB6 */
		spin_lock_irqsave(&pm8001_ha->lock, flags);
		if (-1 == pm8001_bar4_shift(pm8001_ha, RB6_ACCESS_REG)) {
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			pm8001_dbg(pm8001_ha, FAIL,
				   "Shift Bar4 to 0x%x failed\n",
				   RB6_ACCESS_REG);
			return -1;
		}
		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET,
			RB6_MAGIC_NUMBER_RST);
		pm8001_cw32(pm8001_ha, 2, SPC_RB6_OFFSET, RB6_MAGIC_NUMBER_RST);
		/* wait for 100 ms */
		mdelay(100);
		regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2) &
			SCRATCH_PAD2_FWRDY_RST;
		if (regVal != SCRATCH_PAD2_FWRDY_RST) {
			regVal1 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
			regVal2 = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
			pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT:MSGU_SCRATCH_PAD1=0x%x, MSGU_SCRATCH_PAD2=0x%x\n",
				   regVal1, regVal2);
			pm8001_dbg(pm8001_ha, FAIL,
				   "SCRATCH_PAD0 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_0));
			pm8001_dbg(pm8001_ha, FAIL,
				   "SCRATCH_PAD3 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3));
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			return -1;
		}
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
	}
	return 0;
}

/**
 * pm8001_chip_soft_rst - soft reset the PM8001 chip, so that the clear all
 * the FW register status to the originated status.
 * @pm8001_ha: our hba card information
 */
static int
pm8001_chip_soft_rst(struct pm8001_hba_info *pm8001_ha)
{
	u32	regVal, toggleVal;
	u32	max_wait_count;
	u32	regVal1, regVal2, regVal3;
	u32	signature = 0x252acbcd; /* for host scratch pad0 */
	unsigned long flags;

	/* step1: Check FW is ready for soft reset */
	if (soft_reset_ready_check(pm8001_ha) != 0) {
		pm8001_dbg(pm8001_ha, FAIL, "FW is not ready\n");
		return -1;
	}

	/* step 2: clear NMI status register on AAP1 and IOP, write the same
	value to clear */
	/* map 0x60000 to BAR4(0x20), BAR2(win) */
	spin_lock_irqsave(&pm8001_ha->lock, flags);
	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_AAP1_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
			   MBIC_AAP1_ADDR_BASE);
		return -1;
	}
	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP);
	pm8001_dbg(pm8001_ha, INIT, "MBIC - NMI Enable VPE0 (IOP)= 0x%x\n",
		   regVal);
	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_IOP, 0x0);
	/* map 0x70000 to BAR4(0x20), BAR2(win) */
	if (-1 == pm8001_bar4_shift(pm8001_ha, MBIC_IOP_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
			   MBIC_IOP_ADDR_BASE);
		return -1;
	}
	regVal = pm8001_cr32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1);
	pm8001_dbg(pm8001_ha, INIT, "MBIC - NMI Enable VPE0 (AAP1)= 0x%x\n",
		   regVal);
	pm8001_cw32(pm8001_ha, 2, MBIC_NMI_ENABLE_VPE0_AAP1, 0x0);

	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE);
	pm8001_dbg(pm8001_ha, INIT, "PCIE -Event Interrupt Enable = 0x%x\n",
		   regVal);
	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT_ENABLE, 0x0);

	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT);
	pm8001_dbg(pm8001_ha, INIT, "PCIE - Event Interrupt  = 0x%x\n",
		   regVal);
	pm8001_cw32(pm8001_ha, 1, PCIE_EVENT_INTERRUPT, regVal);

	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE);
	pm8001_dbg(pm8001_ha, INIT, "PCIE -Error Interrupt Enable = 0x%x\n",
		   regVal);
	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT_ENABLE, 0x0);

	regVal = pm8001_cr32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT);
	pm8001_dbg(pm8001_ha, INIT, "PCIE - Error Interrupt = 0x%x\n", regVal);
	pm8001_cw32(pm8001_ha, 1, PCIE_ERROR_INTERRUPT, regVal);

	/* read the scratch pad 1 register bit 2 */
	regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1)
		& SCRATCH_PAD1_RST;
	toggleVal = regVal ^ SCRATCH_PAD1_RST;

	/* set signature in host scratch pad0 register to tell SPC that the
	host performs the soft reset */
	pm8001_cw32(pm8001_ha, 0, MSGU_HOST_SCRATCH_PAD_0, signature);

	/* read required registers for confirmming */
	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
			   GSM_ADDR_BASE);
		return -1;
	}
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x0(0x00007b88)-GSM Configuration and Reset = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));

	/* step 3: host read GSM Configuration and Reset register */
	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
	/* Put those bits to low */
	/* GSM XCBI offset = 0x70 0000
	0x00 Bit 13 COM_SLV_SW_RSTB 1
	0x00 Bit 12 QSSP_SW_RSTB 1
	0x00 Bit 11 RAAE_SW_RSTB 1
	0x00 Bit 9 RB_1_SW_RSTB 1
	0x00 Bit 8 SM_SW_RSTB 1
	*/
	regVal &= ~(0x00003b00);
	/* host write GSM Configuration and Reset register */
	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x0 (0x00007b88 ==> 0x00004088) - GSM Configuration and Reset is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));

	/* step 4: */
	/* disable GSM - Read Address Parity Check */
	regVal1 = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700038 - Read Address Parity Check Enable = 0x%x\n",
		   regVal1);
	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, 0x0);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700038 - Read Address Parity Check Enable is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK));

	/* disable GSM - Write Address Parity Check */
	regVal2 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700040 - Write Address Parity Check Enable = 0x%x\n",
		   regVal2);
	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, 0x0);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700040 - Write Address Parity Check Enable is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK));

	/* disable GSM - Write Data Parity Check */
	regVal3 = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
	pm8001_dbg(pm8001_ha, INIT, "GSM 0x300048 - Write Data Parity Check Enable = 0x%x\n",
		   regVal3);
	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, 0x0);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x300048 - Write Data Parity Check Enable is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK));

	/* step 5: delay 10 usec */
	udelay(10);
	/* step 5-b: set GPIO-0 output control to tristate anyway */
	if (-1 == pm8001_bar4_shift(pm8001_ha, GPIO_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, INIT, "Shift Bar4 to 0x%x failed\n",
			   GPIO_ADDR_BASE);
		return -1;
	}
	regVal = pm8001_cr32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET);
	pm8001_dbg(pm8001_ha, INIT, "GPIO Output Control Register: = 0x%x\n",
		   regVal);
	/* set GPIO-0 output control to tri-state */
	regVal &= 0xFFFFFFFC;
	pm8001_cw32(pm8001_ha, 2, GPIO_GPIO_0_0UTPUT_CTL_OFFSET, regVal);

	/* Step 6: Reset the IOP and AAP1 */
	/* map 0x00000 to BAR4(0x20), BAR2(win) */
	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "SPC Shift Bar4 to 0x%x failed\n",
			   SPC_TOP_LEVEL_ADDR_BASE);
		return -1;
	}
	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
	pm8001_dbg(pm8001_ha, INIT, "Top Register before resetting IOP/AAP1:= 0x%x\n",
		   regVal);
	regVal &= ~(SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);

	/* step 7: Reset the BDMA/OSSP */
	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
	pm8001_dbg(pm8001_ha, INIT, "Top Register before resetting BDMA/OSSP: = 0x%x\n",
		   regVal);
	regVal &= ~(SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);

	/* step 8: delay 10 usec */
	udelay(10);

	/* step 9: bring the BDMA and OSSP out of reset */
	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
	pm8001_dbg(pm8001_ha, INIT,
		   "Top Register before bringing up BDMA/OSSP:= 0x%x\n",
		   regVal);
	regVal |= (SPC_REG_RESET_BDMA_CORE | SPC_REG_RESET_OSSP);
	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);

	/* step 10: delay 10 usec */
	udelay(10);

	/* step 11: reads and sets the GSM Configuration and Reset Register */
	/* map 0x0700000 to BAR4(0x20), BAR2(win) */
	if (-1 == pm8001_bar4_shift(pm8001_ha, GSM_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "SPC Shift Bar4 to 0x%x failed\n",
			   GSM_ADDR_BASE);
		return -1;
	}
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x0 (0x00007b88)-GSM Configuration and Reset = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));
	regVal = pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET);
	/* Put those bits to high */
	/* GSM XCBI offset = 0x70 0000
	0x00 Bit 13 COM_SLV_SW_RSTB 1
	0x00 Bit 12 QSSP_SW_RSTB 1
	0x00 Bit 11 RAAE_SW_RSTB 1
	0x00 Bit 9   RB_1_SW_RSTB 1
	0x00 Bit 8   SM_SW_RSTB 1
	*/
	regVal |= (GSM_CONFIG_RESET_VALUE);
	pm8001_cw32(pm8001_ha, 2, GSM_CONFIG_RESET, regVal);
	pm8001_dbg(pm8001_ha, INIT, "GSM (0x00004088 ==> 0x00007b88) - GSM Configuration and Reset is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_CONFIG_RESET));

	/* step 12: Restore GSM - Read Address Parity Check */
	regVal = pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK);
	/* just for debugging */
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700038 - Read Address Parity Check Enable = 0x%x\n",
		   regVal);
	pm8001_cw32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK, regVal1);
	pm8001_dbg(pm8001_ha, INIT, "GSM 0x700038 - Read Address Parity Check Enable is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_READ_ADDR_PARITY_CHECK));
	/* Restore GSM - Write Address Parity Check */
	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK);
	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK, regVal2);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700040 - Write Address Parity Check Enable is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_ADDR_PARITY_CHECK));
	/* Restore GSM - Write Data Parity Check */
	regVal = pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK);
	pm8001_cw32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK, regVal3);
	pm8001_dbg(pm8001_ha, INIT,
		   "GSM 0x700048 - Write Data Parity Check Enable is set to = 0x%x\n",
		   pm8001_cr32(pm8001_ha, 2, GSM_WRITE_DATA_PARITY_CHECK));

	/* step 13: bring the IOP and AAP1 out of reset */
	/* map 0x00000 to BAR4(0x20), BAR2(win) */
	if (-1 == pm8001_bar4_shift(pm8001_ha, SPC_TOP_LEVEL_ADDR_BASE)) {
		spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "Shift Bar4 to 0x%x failed\n",
			   SPC_TOP_LEVEL_ADDR_BASE);
		return -1;
	}
	regVal = pm8001_cr32(pm8001_ha, 2, SPC_REG_RESET);
	regVal |= (SPC_REG_RESET_PCS_IOP_SS | SPC_REG_RESET_PCS_AAP1_SS);
	pm8001_cw32(pm8001_ha, 2, SPC_REG_RESET, regVal);

	/* step 14: delay 10 usec - Normal Mode */
	udelay(10);
	/* check Soft Reset Normal mode or Soft Reset HDA mode */
	if (signature == SPC_SOFT_RESET_SIGNATURE) {
		/* step 15 (Normal Mode): wait until scratch pad1 register
		bit 2 toggled */
		max_wait_count = 2 * 1000 * 1000;/* 2 sec */
		do {
			udelay(1);
			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1) &
				SCRATCH_PAD1_RST;
		} while ((regVal != toggleVal) && (--max_wait_count));

		if (!max_wait_count) {
			regVal = pm8001_cr32(pm8001_ha, 0,
				MSGU_SCRATCH_PAD_1);
			pm8001_dbg(pm8001_ha, FAIL, "TIMEOUT : ToggleVal 0x%x,MSGU_SCRATCH_PAD1 = 0x%x\n",
				   toggleVal, regVal);
			pm8001_dbg(pm8001_ha, FAIL,
				   "SCRATCH_PAD0 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0,
					       MSGU_SCRATCH_PAD_0));
			pm8001_dbg(pm8001_ha, FAIL,
				   "SCRATCH_PAD2 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0,
					       MSGU_SCRATCH_PAD_2));
			pm8001_dbg(pm8001_ha, FAIL,
				   "SCRATCH_PAD3 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0,
					       MSGU_SCRATCH_PAD_3));
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			return -1;
		}

		/* step 16 (Normal) - Clear ODMR and ODCR */
		pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
		pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);

		/* step 17 (Normal Mode): wait for the FW and IOP to get
		ready - 1 sec timeout */
		/* Wait for the SPC Configuration Table to be ready */
		if (check_fw_ready(pm8001_ha) == -1) {
			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_1);
			/* return error if MPI Configuration Table not ready */
			pm8001_dbg(pm8001_ha, INIT,
				   "FW not ready SCRATCH_PAD1 = 0x%x\n",
				   regVal);
			regVal = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_2);
			/* return error if MPI Configuration Table not ready */
			pm8001_dbg(pm8001_ha, INIT,
				   "FW not ready SCRATCH_PAD2 = 0x%x\n",
				   regVal);
			pm8001_dbg(pm8001_ha, INIT,
				   "SCRATCH_PAD0 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0,
					       MSGU_SCRATCH_PAD_0));
			pm8001_dbg(pm8001_ha, INIT,
				   "SCRATCH_PAD3 value = 0x%x\n",
				   pm8001_cr32(pm8001_ha, 0,
					       MSGU_SCRATCH_PAD_3));
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			return -1;
		}
	}
	pm8001_bar4_shift(pm8001_ha, 0);
	spin_unlock_irqrestore(&pm8001_ha->lock, flags);

	pm8001_dbg(pm8001_ha, INIT, "SPC soft reset Complete\n");
	return 0;
}

static void pm8001_hw_chip_rst(struct pm8001_hba_info *pm8001_ha)
{
	u32 i;
	u32 regVal;
	pm8001_dbg(pm8001_ha, INIT, "chip reset start\n");

	/* do SPC chip reset. */
	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
	regVal &= ~(SPC_REG_RESET_DEVICE);
	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);

	/* delay 10 usec */
	udelay(10);

	/* bring chip reset out of reset */
	regVal = pm8001_cr32(pm8001_ha, 1, SPC_REG_RESET);
	regVal |= SPC_REG_RESET_DEVICE;
	pm8001_cw32(pm8001_ha, 1, SPC_REG_RESET, regVal);

	/* delay 10 usec */
	udelay(10);

	/* wait for 20 msec until the firmware gets reloaded */
	i = 20;
	do {
		mdelay(1);
	} while ((--i) != 0);

	pm8001_dbg(pm8001_ha, INIT, "chip reset finished\n");
}

/**
 * pm8001_chip_iounmap - which maped when initialized.
 * @pm8001_ha: our hba card information
 */
void pm8001_chip_iounmap(struct pm8001_hba_info *pm8001_ha)
{
	s8 bar, logical = 0;
	for (bar = 0; bar < PCI_STD_NUM_BARS; bar++) {
		/*
		** logical BARs for SPC:
		** bar 0 and 1 - logical BAR0
		** bar 2 and 3 - logical BAR1
		** bar4 - logical BAR2
		** bar5 - logical BAR3
		** Skip the appropriate assignments:
		*/
		if ((bar == 1) || (bar == 3))
			continue;
		if (pm8001_ha->io_mem[logical].memvirtaddr) {
			iounmap(pm8001_ha->io_mem[logical].memvirtaddr);
			logical++;
		}
	}
}

#ifndef PM8001_USE_MSIX
/**
 * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
 * @pm8001_ha: our hba card information
 */
static void
pm8001_chip_intx_interrupt_enable(struct pm8001_hba_info *pm8001_ha)
{
	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_CLEAR_ALL);
	pm8001_cw32(pm8001_ha, 0, MSGU_ODCR, ODCR_CLEAR_ALL);
}

 /**
  * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
  * @pm8001_ha: our hba card information
  */
static void
pm8001_chip_intx_interrupt_disable(struct pm8001_hba_info *pm8001_ha)
{
	pm8001_cw32(pm8001_ha, 0, MSGU_ODMR, ODMR_MASK_ALL);
}

#else

/**
 * pm8001_chip_msix_interrupt_enable - enable PM8001 chip interrupt
 * @pm8001_ha: our hba card information
 * @int_vec_idx: interrupt number to enable
 */
static void
pm8001_chip_msix_interrupt_enable(struct pm8001_hba_info *pm8001_ha,
	u32 int_vec_idx)
{
	u32 msi_index;
	u32 value;
	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
	msi_index += MSIX_TABLE_BASE;
	pm8001_cw32(pm8001_ha, 0, msi_index, MSIX_INTERRUPT_ENABLE);
	value = (1 << int_vec_idx);
	pm8001_cw32(pm8001_ha, 0,  MSGU_ODCR, value);

}

/**
 * pm8001_chip_msix_interrupt_disable - disable PM8001 chip interrupt
 * @pm8001_ha: our hba card information
 * @int_vec_idx: interrupt number to disable
 */
static void
pm8001_chip_msix_interrupt_disable(struct pm8001_hba_info *pm8001_ha,
	u32 int_vec_idx)
{
	u32 msi_index;
	msi_index = int_vec_idx * MSIX_TABLE_ELEMENT_SIZE;
	msi_index += MSIX_TABLE_BASE;
	pm8001_cw32(pm8001_ha, 0,  msi_index, MSIX_INTERRUPT_DISABLE);
}
#endif

/**
 * pm8001_chip_interrupt_enable - enable PM8001 chip interrupt
 * @pm8001_ha: our hba card information
 * @vec: unused
 */
static void
pm8001_chip_interrupt_enable(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
#ifdef PM8001_USE_MSIX
	pm8001_chip_msix_interrupt_enable(pm8001_ha, 0);
#else
	pm8001_chip_intx_interrupt_enable(pm8001_ha);
#endif
}

/**
 * pm8001_chip_intx_interrupt_disable- disable PM8001 chip interrupt
 * @pm8001_ha: our hba card information
 * @vec: unused
 */
static void
pm8001_chip_interrupt_disable(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
#ifdef PM8001_USE_MSIX
	pm8001_chip_msix_interrupt_disable(pm8001_ha, 0);
#else
	pm8001_chip_intx_interrupt_disable(pm8001_ha);
#endif
}

/**
 * pm8001_mpi_msg_free_get - get the free message buffer for transfer
 * inbound queue.
 * @circularQ: the inbound queue  we want to transfer to HBA.
 * @messageSize: the message size of this transfer, normally it is 64 bytes
 * @messagePtr: the pointer to message.
 */
int pm8001_mpi_msg_free_get(struct inbound_queue_table *circularQ,
			    u16 messageSize, void **messagePtr)
{
	u32 offset, consumer_index;
	struct mpi_msg_hdr *msgHeader;
	u8 bcCount = 1; /* only support single buffer */

	/* Checks is the requested message size can be allocated in this queue*/
	if (messageSize > IOMB_SIZE_SPCV) {
		*messagePtr = NULL;
		return -1;
	}

	/* Stores the new consumer index */
	consumer_index = pm8001_read_32(circularQ->ci_virt);
	circularQ->consumer_index = cpu_to_le32(consumer_index);
	if (((circularQ->producer_idx + bcCount) % PM8001_MPI_QUEUE) ==
		le32_to_cpu(circularQ->consumer_index)) {
		*messagePtr = NULL;
		return -1;
	}
	/* get memory IOMB buffer address */
	offset = circularQ->producer_idx * messageSize;
	/* increment to next bcCount element */
	circularQ->producer_idx = (circularQ->producer_idx + bcCount)
				% PM8001_MPI_QUEUE;
	/* Adds that distance to the base of the region virtual address plus
	the message header size*/
	msgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt	+ offset);
	*messagePtr = ((void *)msgHeader) + sizeof(struct mpi_msg_hdr);
	return 0;
}

/**
 * pm8001_mpi_build_cmd- build the message queue for transfer, update the PI to
 * FW to tell the fw to get this message from IOMB.
 * @pm8001_ha: our hba card information
 * @circularQ: the inbound queue we want to transfer to HBA.
 * @opCode: the operation code represents commands which LLDD and fw recognized.
 * @payload: the command payload of each operation command.
 * @nb: size in bytes of the command payload
 * @responseQueue: queue to interrupt on w/ command response (if any)
 */
int pm8001_mpi_build_cmd(struct pm8001_hba_info *pm8001_ha,
			 struct inbound_queue_table *circularQ,
			 u32 opCode, void *payload, size_t nb,
			 u32 responseQueue)
{
	u32 Header = 0, hpriority = 0, bc = 1, category = 0x02;
	void *pMessage;
	unsigned long flags;
	int q_index = circularQ - pm8001_ha->inbnd_q_tbl;
	int rv = -1;

	WARN_ON(q_index >= PM8001_MAX_INB_NUM);
	spin_lock_irqsave(&circularQ->iq_lock, flags);
	rv = pm8001_mpi_msg_free_get(circularQ, pm8001_ha->iomb_size,
			&pMessage);
	if (rv < 0) {
		pm8001_dbg(pm8001_ha, IO, "No free mpi buffer\n");
		rv = -ENOMEM;
		goto done;
	}

	if (nb > (pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr)))
		nb = pm8001_ha->iomb_size - sizeof(struct mpi_msg_hdr);
	memcpy(pMessage, payload, nb);
	if (nb + sizeof(struct mpi_msg_hdr) < pm8001_ha->iomb_size)
		memset(pMessage + nb, 0, pm8001_ha->iomb_size -
				(nb + sizeof(struct mpi_msg_hdr)));

	/*Build the header*/
	Header = ((1 << 31) | (hpriority << 30) | ((bc & 0x1f) << 24)
		| ((responseQueue & 0x3F) << 16)
		| ((category & 0xF) << 12) | (opCode & 0xFFF));

	pm8001_write_32((pMessage - 4), 0, cpu_to_le32(Header));
	/*Update the PI to the firmware*/
	pm8001_cw32(pm8001_ha, circularQ->pi_pci_bar,
		circularQ->pi_offset, circularQ->producer_idx);
	pm8001_dbg(pm8001_ha, DEVIO,
		   "INB Q %x OPCODE:%x , UPDATED PI=%d CI=%d\n",
		   responseQueue, opCode, circularQ->producer_idx,
		   circularQ->consumer_index);
done:
	spin_unlock_irqrestore(&circularQ->iq_lock, flags);
	return rv;
}

u32 pm8001_mpi_msg_free_set(struct pm8001_hba_info *pm8001_ha, void *pMsg,
			    struct outbound_queue_table *circularQ, u8 bc)
{
	u32 producer_index;
	struct mpi_msg_hdr *msgHeader;
	struct mpi_msg_hdr *pOutBoundMsgHeader;

	msgHeader = (struct mpi_msg_hdr *)(pMsg - sizeof(struct mpi_msg_hdr));
	pOutBoundMsgHeader = (struct mpi_msg_hdr *)(circularQ->base_virt +
				circularQ->consumer_idx * pm8001_ha->iomb_size);
	if (pOutBoundMsgHeader != msgHeader) {
		pm8001_dbg(pm8001_ha, FAIL,
			   "consumer_idx = %d msgHeader = %p\n",
			   circularQ->consumer_idx, msgHeader);

		/* Update the producer index from SPC */
		producer_index = pm8001_read_32(circularQ->pi_virt);
		circularQ->producer_index = cpu_to_le32(producer_index);
		pm8001_dbg(pm8001_ha, FAIL,
			   "consumer_idx = %d producer_index = %dmsgHeader = %p\n",
			   circularQ->consumer_idx,
			   circularQ->producer_index, msgHeader);
		return 0;
	}
	/* free the circular queue buffer elements associated with the message*/
	circularQ->consumer_idx = (circularQ->consumer_idx + bc)
				% PM8001_MPI_QUEUE;
	/* update the CI of outbound queue */
	pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar, circularQ->ci_offset,
		circularQ->consumer_idx);
	/* Update the producer index from SPC*/
	producer_index = pm8001_read_32(circularQ->pi_virt);
	circularQ->producer_index = cpu_to_le32(producer_index);
	pm8001_dbg(pm8001_ha, IO, " CI=%d PI=%d\n",
		   circularQ->consumer_idx, circularQ->producer_index);
	return 0;
}

/**
 * pm8001_mpi_msg_consume- get the MPI message from outbound queue
 * message table.
 * @pm8001_ha: our hba card information
 * @circularQ: the outbound queue  table.
 * @messagePtr1: the message contents of this outbound message.
 * @pBC: the message size.
 */
u32 pm8001_mpi_msg_consume(struct pm8001_hba_info *pm8001_ha,
			   struct outbound_queue_table *circularQ,
			   void **messagePtr1, u8 *pBC)
{
	struct mpi_msg_hdr	*msgHeader;
	__le32	msgHeader_tmp;
	u32 header_tmp;
	do {
		/* If there are not-yet-delivered messages ... */
		if (le32_to_cpu(circularQ->producer_index)
			!= circularQ->consumer_idx) {
			/*Get the pointer to the circular queue buffer element*/
			msgHeader = (struct mpi_msg_hdr *)
				(circularQ->base_virt +
				circularQ->consumer_idx * pm8001_ha->iomb_size);
			/* read header */
			header_tmp = pm8001_read_32(msgHeader);
			msgHeader_tmp = cpu_to_le32(header_tmp);
			pm8001_dbg(pm8001_ha, DEVIO,
				   "outbound opcode msgheader:%x ci=%d pi=%d\n",
				   msgHeader_tmp, circularQ->consumer_idx,
				   circularQ->producer_index);
			if (0 != (le32_to_cpu(msgHeader_tmp) & 0x80000000)) {
				if (OPC_OUB_SKIP_ENTRY !=
					(le32_to_cpu(msgHeader_tmp) & 0xfff)) {
					*messagePtr1 =
						((u8 *)msgHeader) +
						sizeof(struct mpi_msg_hdr);
					*pBC = (u8)((le32_to_cpu(msgHeader_tmp)
						>> 24) & 0x1f);
					pm8001_dbg(pm8001_ha, IO,
						   ": CI=%d PI=%d msgHeader=%x\n",
						   circularQ->consumer_idx,
						   circularQ->producer_index,
						   msgHeader_tmp);
					return MPI_IO_STATUS_SUCCESS;
				} else {
					circularQ->consumer_idx =
						(circularQ->consumer_idx +
						((le32_to_cpu(msgHeader_tmp)
						 >> 24) & 0x1f))
							% PM8001_MPI_QUEUE;
					msgHeader_tmp = 0;
					pm8001_write_32(msgHeader, 0, 0);
					/* update the CI of outbound queue */
					pm8001_cw32(pm8001_ha,
						circularQ->ci_pci_bar,
						circularQ->ci_offset,
						circularQ->consumer_idx);
				}
			} else {
				circularQ->consumer_idx =
					(circularQ->consumer_idx +
					((le32_to_cpu(msgHeader_tmp) >> 24) &
					0x1f)) % PM8001_MPI_QUEUE;
				msgHeader_tmp = 0;
				pm8001_write_32(msgHeader, 0, 0);
				/* update the CI of outbound queue */
				pm8001_cw32(pm8001_ha, circularQ->ci_pci_bar,
					circularQ->ci_offset,
					circularQ->consumer_idx);
				return MPI_IO_STATUS_FAIL;
			}
		} else {
			u32 producer_index;
			void *pi_virt = circularQ->pi_virt;
			/* spurious interrupt during setup if
			 * kexec-ing and driver doing a doorbell access
			 * with the pre-kexec oq interrupt setup
			 */
			if (!pi_virt)
				break;
			/* Update the producer index from SPC */
			producer_index = pm8001_read_32(pi_virt);
			circularQ->producer_index = cpu_to_le32(producer_index);
		}
	} while (le32_to_cpu(circularQ->producer_index) !=
		circularQ->consumer_idx);
	/* while we don't have any more not-yet-delivered message */
	/* report empty */
	return MPI_IO_STATUS_BUSY;
}

void pm8001_work_fn(struct work_struct *work)
{
	struct pm8001_work *pw = container_of(work, struct pm8001_work, work);
	struct pm8001_device *pm8001_dev;
	struct domain_device *dev;

	/*
	 * So far, all users of this stash an associated structure here.
	 * If we get here, and this pointer is null, then the action
	 * was cancelled. This nullification happens when the device
	 * goes away.
	 */
	pm8001_dev = pw->data; /* Most stash device structure */
	if ((pm8001_dev == NULL)
	 || ((pw->handler != IO_XFER_ERROR_BREAK)
	  && (pm8001_dev->dev_type == SAS_PHY_UNUSED))) {
		kfree(pw);
		return;
	}

	switch (pw->handler) {
	case IO_XFER_ERROR_BREAK:
	{	/* This one stashes the sas_task instead */
		struct sas_task *t = (struct sas_task *)pm8001_dev;
		u32 tag;
		struct pm8001_ccb_info *ccb;
		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
		unsigned long flags, flags1;
		struct task_status_struct *ts;
		int i;

		if (pm8001_query_task(t) == TMF_RESP_FUNC_SUCC)
			break; /* Task still on lu */
		spin_lock_irqsave(&pm8001_ha->lock, flags);

		spin_lock_irqsave(&t->task_state_lock, flags1);
		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
			spin_unlock_irqrestore(&t->task_state_lock, flags1);
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			break; /* Task got completed by another */
		}
		spin_unlock_irqrestore(&t->task_state_lock, flags1);

		/* Search for a possible ccb that matches the task */
		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
			ccb = &pm8001_ha->ccb_info[i];
			tag = ccb->ccb_tag;
			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
				break;
		}
		if (!ccb) {
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			break; /* Task got freed by another */
		}
		ts = &t->task_status;
		ts->resp = SAS_TASK_COMPLETE;
		/* Force the midlayer to retry */
		ts->stat = SAS_QUEUE_FULL;
		pm8001_dev = ccb->device;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		spin_lock_irqsave(&t->task_state_lock, flags1);
		t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
		t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
		t->task_state_flags |= SAS_TASK_STATE_DONE;
		if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
			spin_unlock_irqrestore(&t->task_state_lock, flags1);
			pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
				   t, pw->handler, ts->resp, ts->stat);
			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
		} else {
			spin_unlock_irqrestore(&t->task_state_lock, flags1);
			pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
			mb();/* in order to force CPU ordering */
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			t->task_done(t);
		}
	}	break;
	case IO_XFER_OPEN_RETRY_TIMEOUT:
	{	/* This one stashes the sas_task instead */
		struct sas_task *t = (struct sas_task *)pm8001_dev;
		u32 tag;
		struct pm8001_ccb_info *ccb;
		struct pm8001_hba_info *pm8001_ha = pw->pm8001_ha;
		unsigned long flags, flags1;
		int i, ret = 0;

		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");

		ret = pm8001_query_task(t);

		if (ret == TMF_RESP_FUNC_SUCC)
			pm8001_dbg(pm8001_ha, IO, "...Task on lu\n");
		else if (ret == TMF_RESP_FUNC_COMPLETE)
			pm8001_dbg(pm8001_ha, IO, "...Task NOT on lu\n");
		else
			pm8001_dbg(pm8001_ha, DEVIO, "...query task failed!!!\n");

		spin_lock_irqsave(&pm8001_ha->lock, flags);

		spin_lock_irqsave(&t->task_state_lock, flags1);

		if (unlikely((t->task_state_flags & SAS_TASK_STATE_DONE))) {
			spin_unlock_irqrestore(&t->task_state_lock, flags1);
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
				(void)pm8001_abort_task(t);
			break; /* Task got completed by another */
		}

		spin_unlock_irqrestore(&t->task_state_lock, flags1);

		/* Search for a possible ccb that matches the task */
		for (i = 0; ccb = NULL, i < PM8001_MAX_CCB; i++) {
			ccb = &pm8001_ha->ccb_info[i];
			tag = ccb->ccb_tag;
			if ((tag != 0xFFFFFFFF) && (ccb->task == t))
				break;
		}
		if (!ccb) {
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			if (ret == TMF_RESP_FUNC_SUCC) /* task on lu */
				(void)pm8001_abort_task(t);
			break; /* Task got freed by another */
		}

		pm8001_dev = ccb->device;
		dev = pm8001_dev->sas_device;

		switch (ret) {
		case TMF_RESP_FUNC_SUCC: /* task on lu */
			ccb->open_retry = 1; /* Snub completion */
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			ret = pm8001_abort_task(t);
			ccb->open_retry = 0;
			switch (ret) {
			case TMF_RESP_FUNC_SUCC:
			case TMF_RESP_FUNC_COMPLETE:
				break;
			default: /* device misbehavior */
				ret = TMF_RESP_FUNC_FAILED;
				pm8001_dbg(pm8001_ha, IO, "...Reset phy\n");
				pm8001_I_T_nexus_reset(dev);
				break;
			}
			break;

		case TMF_RESP_FUNC_COMPLETE: /* task not on lu */
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			/* Do we need to abort the task locally? */
			break;

		default: /* device misbehavior */
			spin_unlock_irqrestore(&pm8001_ha->lock, flags);
			ret = TMF_RESP_FUNC_FAILED;
			pm8001_dbg(pm8001_ha, IO, "...Reset phy\n");
			pm8001_I_T_nexus_reset(dev);
		}

		if (ret == TMF_RESP_FUNC_FAILED)
			t = NULL;
		pm8001_open_reject_retry(pm8001_ha, t, pm8001_dev);
		pm8001_dbg(pm8001_ha, IO, "...Complete\n");
	}	break;
	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
		dev = pm8001_dev->sas_device;
		pm8001_I_T_nexus_event_handler(dev);
		break;
	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
		dev = pm8001_dev->sas_device;
		pm8001_I_T_nexus_reset(dev);
		break;
	case IO_DS_IN_ERROR:
		dev = pm8001_dev->sas_device;
		pm8001_I_T_nexus_reset(dev);
		break;
	case IO_DS_NON_OPERATIONAL:
		dev = pm8001_dev->sas_device;
		pm8001_I_T_nexus_reset(dev);
		break;
	}
	kfree(pw);
}

int pm8001_handle_event(struct pm8001_hba_info *pm8001_ha, void *data,
			       int handler)
{
	struct pm8001_work *pw;
	int ret = 0;

	pw = kmalloc(sizeof(struct pm8001_work), GFP_ATOMIC);
	if (pw) {
		pw->pm8001_ha = pm8001_ha;
		pw->data = data;
		pw->handler = handler;
		INIT_WORK(&pw->work, pm8001_work_fn);
		queue_work(pm8001_wq, &pw->work);
	} else
		ret = -ENOMEM;

	return ret;
}

static void pm8001_send_abort_all(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_device *pm8001_ha_dev)
{
	int res;
	u32 ccb_tag;
	struct pm8001_ccb_info *ccb;
	struct sas_task *task = NULL;
	struct task_abort_req task_abort;
	struct inbound_queue_table *circularQ;
	u32 opc = OPC_INB_SATA_ABORT;
	int ret;

	if (!pm8001_ha_dev) {
		pm8001_dbg(pm8001_ha, FAIL, "dev is null\n");
		return;
	}

	task = sas_alloc_slow_task(GFP_ATOMIC);

	if (!task) {
		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task\n");
		return;
	}

	task->task_done = pm8001_task_done;

	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
	if (res)
		return;

	ccb = &pm8001_ha->ccb_info[ccb_tag];
	ccb->device = pm8001_ha_dev;
	ccb->ccb_tag = ccb_tag;
	ccb->task = task;

	circularQ = &pm8001_ha->inbnd_q_tbl[0];

	memset(&task_abort, 0, sizeof(task_abort));
	task_abort.abort_all = cpu_to_le32(1);
	task_abort.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
	task_abort.tag = cpu_to_le32(ccb_tag);

	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
			sizeof(task_abort), 0);
	if (ret)
		pm8001_tag_free(pm8001_ha, ccb_tag);

}

static void pm8001_send_read_log(struct pm8001_hba_info *pm8001_ha,
		struct pm8001_device *pm8001_ha_dev)
{
	struct sata_start_req sata_cmd;
	int res;
	u32 ccb_tag;
	struct pm8001_ccb_info *ccb;
	struct sas_task *task = NULL;
	struct host_to_dev_fis fis;
	struct domain_device *dev;
	struct inbound_queue_table *circularQ;
	u32 opc = OPC_INB_SATA_HOST_OPSTART;

	task = sas_alloc_slow_task(GFP_ATOMIC);

	if (!task) {
		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate task !!!\n");
		return;
	}
	task->task_done = pm8001_task_done;

	res = pm8001_tag_alloc(pm8001_ha, &ccb_tag);
	if (res) {
		sas_free_task(task);
		pm8001_dbg(pm8001_ha, FAIL, "cannot allocate tag !!!\n");
		return;
	}

	/* allocate domain device by ourselves as libsas
	 * is not going to provide any
	*/
	dev = kzalloc(sizeof(struct domain_device), GFP_ATOMIC);
	if (!dev) {
		sas_free_task(task);
		pm8001_tag_free(pm8001_ha, ccb_tag);
		pm8001_dbg(pm8001_ha, FAIL,
			   "Domain device cannot be allocated\n");
		return;
	}
	task->dev = dev;
	task->dev->lldd_dev = pm8001_ha_dev;

	ccb = &pm8001_ha->ccb_info[ccb_tag];
	ccb->device = pm8001_ha_dev;
	ccb->ccb_tag = ccb_tag;
	ccb->task = task;
	pm8001_ha_dev->id |= NCQ_READ_LOG_FLAG;
	pm8001_ha_dev->id |= NCQ_2ND_RLE_FLAG;

	memset(&sata_cmd, 0, sizeof(sata_cmd));
	circularQ = &pm8001_ha->inbnd_q_tbl[0];

	/* construct read log FIS */
	memset(&fis, 0, sizeof(struct host_to_dev_fis));
	fis.fis_type = 0x27;
	fis.flags = 0x80;
	fis.command = ATA_CMD_READ_LOG_EXT;
	fis.lbal = 0x10;
	fis.sector_count = 0x1;

	sata_cmd.tag = cpu_to_le32(ccb_tag);
	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
	sata_cmd.ncqtag_atap_dir_m |= ((0x1 << 7) | (0x5 << 9));
	memcpy(&sata_cmd.sata_fis, &fis, sizeof(struct host_to_dev_fis));

	res = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
			sizeof(sata_cmd), 0);
	if (res) {
		sas_free_task(task);
		pm8001_tag_free(pm8001_ha, ccb_tag);
		kfree(dev);
	}
}

/**
 * mpi_ssp_completion- process the event that FW response to the SSP request.
 * @pm8001_ha: our hba card information
 * @piomb: the message contents of this outbound message.
 *
 * When FW has completed a ssp request for example a IO request, after it has
 * filled the SG data with the data, it will trigger this event represent
 * that he has finished the job,please check the coresponding buffer.
 * So we will tell the caller who maybe waiting the result to tell upper layer
 * that the task has been finished.
 */
static void
mpi_ssp_completion(struct pm8001_hba_info *pm8001_ha , void *piomb)
{
	struct sas_task *t;
	struct pm8001_ccb_info *ccb;
	unsigned long flags;
	u32 status;
	u32 param;
	u32 tag;
	struct ssp_completion_resp *psspPayload;
	struct task_status_struct *ts;
	struct ssp_response_iu *iu;
	struct pm8001_device *pm8001_dev;
	psspPayload = (struct ssp_completion_resp *)(piomb + 4);
	status = le32_to_cpu(psspPayload->status);
	tag = le32_to_cpu(psspPayload->tag);
	ccb = &pm8001_ha->ccb_info[tag];
	if ((status == IO_ABORTED) && ccb->open_retry) {
		/* Being completed by another */
		ccb->open_retry = 0;
		return;
	}
	pm8001_dev = ccb->device;
	param = le32_to_cpu(psspPayload->param);

	t = ccb->task;

	if (status && status != IO_UNDERFLOW)
		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", status);
	if (unlikely(!t || !t->lldd_task || !t->dev))
		return;
	ts = &t->task_status;
	/* Print sas address of IO failed device */
	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
		(status != IO_UNDERFLOW))
		pm8001_dbg(pm8001_ha, FAIL, "SAS Address of IO Failure Drive:%016llx\n",
			   SAS_ADDR(t->dev->sas_addr));

	if (status)
		pm8001_dbg(pm8001_ha, IOERR,
			   "status:0x%x, tag:0x%x, task:0x%p\n",
			   status, tag, t);

	switch (status) {
	case IO_SUCCESS:
		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS,param = %d\n",
			   param);
		if (param == 0) {
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAM_STAT_GOOD;
		} else {
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAS_PROTO_RESPONSE;
			ts->residual = param;
			iu = &psspPayload->ssp_resp_iu;
			sas_ssp_task_response(pm8001_ha->dev, t, iu);
		}
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_ABORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_ABORTED_TASK;
		break;
	case IO_UNDERFLOW:
		/* SSP Completion with error */
		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW,param = %d\n",
			   param);
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_UNDERRUN;
		ts->residual = param;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_NO_DEVICE:
		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_PHY_DOWN;
		break;
	case IO_XFER_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		/* Force the midlayer to retry */
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_XFER_ERROR_PHY_NOT_READY:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_EPROTO;
		break;
	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		break;
	case IO_OPEN_CNX_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		if (!t->uldd_task)
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
		break;
	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
		break;
	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
		break;
	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
		break;
	case IO_XFER_ERROR_NAK_RECEIVED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_NAK_R_ERR;
		break;
	case IO_XFER_ERROR_DMA:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	case IO_XFER_OPEN_RETRY_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_XFER_ERROR_OFFSET_MISMATCH:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	case IO_PORT_IN_RESET:
		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	case IO_DS_NON_OPERATIONAL:
		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		if (!t->uldd_task)
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_DS_NON_OPERATIONAL);
		break;
	case IO_DS_IN_RECOVERY:
		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	case IO_TM_TAG_NOT_FOUND:
		pm8001_dbg(pm8001_ha, IO, "IO_TM_TAG_NOT_FOUND\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	case IO_SSP_EXT_IU_ZERO_LEN_ERROR:
		pm8001_dbg(pm8001_ha, IO, "IO_SSP_EXT_IU_ZERO_LEN_ERROR\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
		/* not allowed case. Therefore, return failed status */
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		break;
	}
	pm8001_dbg(pm8001_ha, IO, "scsi_status = %x\n",
		   psspPayload->ssp_resp_iu.status);
	spin_lock_irqsave(&t->task_state_lock, flags);
	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
	t->task_state_flags |= SAS_TASK_STATE_DONE;
	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
			   t, status, ts->resp, ts->stat);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
	} else {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
		mb();/* in order to force CPU ordering */
		t->task_done(t);
	}
}

/*See the comments for mpi_ssp_completion */
static void mpi_ssp_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
{
	struct sas_task *t;
	unsigned long flags;
	struct task_status_struct *ts;
	struct pm8001_ccb_info *ccb;
	struct pm8001_device *pm8001_dev;
	struct ssp_event_resp *psspPayload =
		(struct ssp_event_resp *)(piomb + 4);
	u32 event = le32_to_cpu(psspPayload->event);
	u32 tag = le32_to_cpu(psspPayload->tag);
	u32 port_id = le32_to_cpu(psspPayload->port_id);
	u32 dev_id = le32_to_cpu(psspPayload->device_id);

	ccb = &pm8001_ha->ccb_info[tag];
	t = ccb->task;
	pm8001_dev = ccb->device;
	if (event)
		pm8001_dbg(pm8001_ha, FAIL, "sas IO status 0x%x\n", event);
	if (unlikely(!t || !t->lldd_task || !t->dev))
		return;
	ts = &t->task_status;
	pm8001_dbg(pm8001_ha, DEVIO, "port_id = %x,device_id = %x\n",
		   port_id, dev_id);
	switch (event) {
	case IO_OVERFLOW:
		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		ts->residual = 0;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
		pm8001_handle_event(pm8001_ha, t, IO_XFER_ERROR_BREAK);
		return;
	case IO_XFER_ERROR_PHY_NOT_READY:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_EPROTO;
		break;
	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		break;
	case IO_OPEN_CNX_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		if (!t->uldd_task)
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
		break;
	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
		break;
	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
		break;
	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
		break;
	case IO_XFER_ERROR_NAK_RECEIVED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_NAK_R_ERR;
		break;
	case IO_XFER_OPEN_RETRY_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
		pm8001_handle_event(pm8001_ha, t, IO_XFER_OPEN_RETRY_TIMEOUT);
		return;
	case IO_XFER_ERROR_UNEXPECTED_PHASE:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	case IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_XFER_ERROR_CMD_ISSUE_ACK_NAK_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	case IO_XFER_ERROR_OFFSET_MISMATCH:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	case IO_XFER_CMD_FRAME_ISSUED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
		return;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
		/* not allowed case. Therefore, return failed status */
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		break;
	}
	spin_lock_irqsave(&t->task_state_lock, flags);
	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
	t->task_state_flags |= SAS_TASK_STATE_DONE;
	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with event 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
			   t, event, ts->resp, ts->stat);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
	} else {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
		mb();/* in order to force CPU ordering */
		t->task_done(t);
	}
}

/*See the comments for mpi_ssp_completion */
static void
mpi_sata_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct sas_task *t;
	struct pm8001_ccb_info *ccb;
	u32 param;
	u32 status;
	u32 tag;
	int i, j;
	u8 sata_addr_low[4];
	u32 temp_sata_addr_low;
	u8 sata_addr_hi[4];
	u32 temp_sata_addr_hi;
	struct sata_completion_resp *psataPayload;
	struct task_status_struct *ts;
	struct ata_task_resp *resp ;
	u32 *sata_resp;
	struct pm8001_device *pm8001_dev;
	unsigned long flags;

	psataPayload = (struct sata_completion_resp *)(piomb + 4);
	status = le32_to_cpu(psataPayload->status);
	tag = le32_to_cpu(psataPayload->tag);

	if (!tag) {
		pm8001_dbg(pm8001_ha, FAIL, "tag null\n");
		return;
	}
	ccb = &pm8001_ha->ccb_info[tag];
	param = le32_to_cpu(psataPayload->param);
	if (ccb) {
		t = ccb->task;
		pm8001_dev = ccb->device;
	} else {
		pm8001_dbg(pm8001_ha, FAIL, "ccb null\n");
		return;
	}

	if (t) {
		if (t->dev && (t->dev->lldd_dev))
			pm8001_dev = t->dev->lldd_dev;
	} else {
		pm8001_dbg(pm8001_ha, FAIL, "task null\n");
		return;
	}

	if ((pm8001_dev && !(pm8001_dev->id & NCQ_READ_LOG_FLAG))
		&& unlikely(!t || !t->lldd_task || !t->dev)) {
		pm8001_dbg(pm8001_ha, FAIL, "task or dev null\n");
		return;
	}

	ts = &t->task_status;
	if (!ts) {
		pm8001_dbg(pm8001_ha, FAIL, "ts null\n");
		return;
	}

	if (status)
		pm8001_dbg(pm8001_ha, IOERR,
			   "status:0x%x, tag:0x%x, task::0x%p\n",
			   status, tag, t);

	/* Print sas address of IO failed device */
	if ((status != IO_SUCCESS) && (status != IO_OVERFLOW) &&
		(status != IO_UNDERFLOW)) {
		if (!((t->dev->parent) &&
			(dev_is_expander(t->dev->parent->dev_type)))) {
			for (i = 0 , j = 4; j <= 7 && i <= 3; i++ , j++)
				sata_addr_low[i] = pm8001_ha->sas_addr[j];
			for (i = 0 , j = 0; j <= 3 && i <= 3; i++ , j++)
				sata_addr_hi[i] = pm8001_ha->sas_addr[j];
			memcpy(&temp_sata_addr_low, sata_addr_low,
				sizeof(sata_addr_low));
			memcpy(&temp_sata_addr_hi, sata_addr_hi,
				sizeof(sata_addr_hi));
			temp_sata_addr_hi = (((temp_sata_addr_hi >> 24) & 0xff)
						|((temp_sata_addr_hi << 8) &
						0xff0000) |
						((temp_sata_addr_hi >> 8)
						& 0xff00) |
						((temp_sata_addr_hi << 24) &
						0xff000000));
			temp_sata_addr_low = ((((temp_sata_addr_low >> 24)
						& 0xff) |
						((temp_sata_addr_low << 8)
						& 0xff0000) |
						((temp_sata_addr_low >> 8)
						& 0xff00) |
						((temp_sata_addr_low << 24)
						& 0xff000000)) +
						pm8001_dev->attached_phy +
						0x10);
			pm8001_dbg(pm8001_ha, FAIL,
				   "SAS Address of IO Failure Drive:%08x%08x\n",
				   temp_sata_addr_hi,
				   temp_sata_addr_low);
		} else {
			pm8001_dbg(pm8001_ha, FAIL,
				   "SAS Address of IO Failure Drive:%016llx\n",
				   SAS_ADDR(t->dev->sas_addr));
		}
	}
	switch (status) {
	case IO_SUCCESS:
		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
		if (param == 0) {
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAM_STAT_GOOD;
			/* check if response is for SEND READ LOG */
			if (pm8001_dev &&
				(pm8001_dev->id & NCQ_READ_LOG_FLAG)) {
				/* set new bit for abort_all */
				pm8001_dev->id |= NCQ_ABORT_ALL_FLAG;
				/* clear bit for read log */
				pm8001_dev->id = pm8001_dev->id & 0x7FFFFFFF;
				pm8001_send_abort_all(pm8001_ha, pm8001_dev);
				/* Free the tag */
				pm8001_tag_free(pm8001_ha, tag);
				sas_free_task(t);
				return;
			}
		} else {
			u8 len;
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAS_PROTO_RESPONSE;
			ts->residual = param;
			pm8001_dbg(pm8001_ha, IO,
				   "SAS_PROTO_RESPONSE len = %d\n",
				   param);
			sata_resp = &psataPayload->sata_resp[0];
			resp = (struct ata_task_resp *)ts->buf;
			if (t->ata_task.dma_xfer == 0 &&
			    t->data_dir == DMA_FROM_DEVICE) {
				len = sizeof(struct pio_setup_fis);
				pm8001_dbg(pm8001_ha, IO,
					   "PIO read len = %d\n", len);
			} else if (t->ata_task.use_ncq) {
				len = sizeof(struct set_dev_bits_fis);
				pm8001_dbg(pm8001_ha, IO, "FPDMA len = %d\n",
					   len);
			} else {
				len = sizeof(struct dev_to_host_fis);
				pm8001_dbg(pm8001_ha, IO, "other len = %d\n",
					   len);
			}
			if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) {
				resp->frame_len = len;
				memcpy(&resp->ending_fis[0], sata_resp, len);
				ts->buf_valid_size = sizeof(*resp);
			} else
				pm8001_dbg(pm8001_ha, IO,
					   "response too large\n");
		}
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_ABORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB Tag\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_ABORTED_TASK;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
		/* following cases are to do cases */
	case IO_UNDERFLOW:
		/* SATA Completion with error */
		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW param = %d\n", param);
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_UNDERRUN;
		ts->residual =  param;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_NO_DEVICE:
		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_PHY_DOWN;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_INTERRUPTED;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_PHY_NOT_READY:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_EPROTO;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_OPEN_CNX_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (!t->uldd_task) {
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
			ts->resp = SAS_TASK_UNDELIVERED;
			ts->stat = SAS_QUEUE_FULL;
			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
			return;
		}
		break;
	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
		if (!t->uldd_task) {
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
			ts->resp = SAS_TASK_UNDELIVERED;
			ts->stat = SAS_QUEUE_FULL;
			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
			return;
		}
		break;
	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (!t->uldd_task) {
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_STP_RESOURCES_BUSY);
			ts->resp = SAS_TASK_UNDELIVERED;
			ts->stat = SAS_QUEUE_FULL;
			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
			return;
		}
		break;
	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_NAK_RECEIVED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_NAK_R_ERR;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_ACK_NAK_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_ACK_NAK_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_NAK_R_ERR;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_DMA:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_DMA\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_ABORTED_TASK;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_SATA_LINK_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_SATA_LINK_TIMEOUT\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_UNDERRUN;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_OPEN_RETRY_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_PORT_IN_RESET:
		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_DS_NON_OPERATIONAL:
		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (!t->uldd_task) {
			pm8001_handle_event(pm8001_ha, pm8001_dev,
				    IO_DS_NON_OPERATIONAL);
			ts->resp = SAS_TASK_UNDELIVERED;
			ts->stat = SAS_QUEUE_FULL;
			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
			return;
		}
		break;
	case IO_DS_IN_RECOVERY:
		pm8001_dbg(pm8001_ha, IO, "  IO_DS_IN_RECOVERY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_DS_IN_ERROR:
		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_ERROR\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (!t->uldd_task) {
			pm8001_handle_event(pm8001_ha, pm8001_dev,
				    IO_DS_IN_ERROR);
			ts->resp = SAS_TASK_UNDELIVERED;
			ts->stat = SAS_QUEUE_FULL;
			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
			return;
		}
		break;
	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
		/* not allowed case. Therefore, return failed status */
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	}
	spin_lock_irqsave(&t->task_state_lock, flags);
	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
	t->task_state_flags |= SAS_TASK_STATE_DONE;
	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_dbg(pm8001_ha, FAIL,
			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
			   t, status, ts->resp, ts->stat);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
	} else {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
	}
}

/*See the comments for mpi_ssp_completion */
static void mpi_sata_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
{
	struct sas_task *t;
	struct task_status_struct *ts;
	struct pm8001_ccb_info *ccb;
	struct pm8001_device *pm8001_dev;
	struct sata_event_resp *psataPayload =
		(struct sata_event_resp *)(piomb + 4);
	u32 event = le32_to_cpu(psataPayload->event);
	u32 tag = le32_to_cpu(psataPayload->tag);
	u32 port_id = le32_to_cpu(psataPayload->port_id);
	u32 dev_id = le32_to_cpu(psataPayload->device_id);
	unsigned long flags;

	ccb = &pm8001_ha->ccb_info[tag];

	if (ccb) {
		t = ccb->task;
		pm8001_dev = ccb->device;
	} else {
		pm8001_dbg(pm8001_ha, FAIL, "No CCB !!!. returning\n");
	}
	if (event)
		pm8001_dbg(pm8001_ha, FAIL, "SATA EVENT 0x%x\n", event);

	/* Check if this is NCQ error */
	if (event == IO_XFER_ERROR_ABORTED_NCQ_MODE) {
		/* find device using device id */
		pm8001_dev = pm8001_find_dev(pm8001_ha, dev_id);
		/* send read log extension */
		if (pm8001_dev)
			pm8001_send_read_log(pm8001_ha, pm8001_dev);
		return;
	}

	ccb = &pm8001_ha->ccb_info[tag];
	t = ccb->task;
	pm8001_dev = ccb->device;
	if (event)
		pm8001_dbg(pm8001_ha, FAIL, "sata IO status 0x%x\n", event);
	if (unlikely(!t || !t->lldd_task || !t->dev))
		return;
	ts = &t->task_status;
	pm8001_dbg(pm8001_ha, DEVIO,
		   "port_id:0x%x, device_id:0x%x, tag:0x%x, event:0x%x\n",
		   port_id, dev_id, tag, event);
	switch (event) {
	case IO_OVERFLOW:
		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		ts->residual = 0;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_XFER_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_INTERRUPTED;
		break;
	case IO_XFER_ERROR_PHY_NOT_READY:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_EPROTO;
		break;
	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		break;
	case IO_OPEN_CNX_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
		break;
	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_DEV_NO_RESPONSE;
		if (!t->uldd_task) {
			pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAS_QUEUE_FULL;
			pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
			return;
		}
		break;
	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
		ts->resp = SAS_TASK_UNDELIVERED;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
		break;
	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
		break;
	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
		break;
	case IO_XFER_ERROR_NAK_RECEIVED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_NAK_RECEIVED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_NAK_R_ERR;
		break;
	case IO_XFER_ERROR_PEER_ABORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PEER_ABORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_NAK_R_ERR;
		break;
	case IO_XFER_ERROR_REJECTED_NCQ_MODE:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_REJECTED_NCQ_MODE\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_UNDERRUN;
		break;
	case IO_XFER_OPEN_RETRY_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	case IO_XFER_ERROR_UNEXPECTED_PHASE:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_UNEXPECTED_PHASE\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	case IO_XFER_ERROR_XFER_RDY_OVERRUN:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_XFER_RDY_OVERRUN\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	case IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_XFER_ERROR_XFER_RDY_NOT_EXPECTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	case IO_XFER_ERROR_OFFSET_MISMATCH:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_OFFSET_MISMATCH\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	case IO_XFER_ERROR_XFER_ZERO_DATA_LEN:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_XFER_ERROR_XFER_ZERO_DATA_LEN\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	case IO_XFER_CMD_FRAME_ISSUED:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_CMD_FRAME_ISSUED\n");
		break;
	case IO_XFER_PIO_SETUP_ERROR:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_PIO_SETUP_ERROR\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", event);
		/* not allowed case. Therefore, return failed status */
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_TO;
		break;
	}
	spin_lock_irqsave(&t->task_state_lock, flags);
	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
	t->task_state_flags |= SAS_TASK_STATE_DONE;
	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_dbg(pm8001_ha, FAIL,
			   "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
			   t, event, ts->resp, ts->stat);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
	} else {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_ccb_task_free_done(pm8001_ha, t, ccb, tag);
	}
}

/*See the comments for mpi_ssp_completion */
static void
mpi_smp_completion(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct sas_task *t;
	struct pm8001_ccb_info *ccb;
	unsigned long flags;
	u32 status;
	u32 tag;
	struct smp_completion_resp *psmpPayload;
	struct task_status_struct *ts;
	struct pm8001_device *pm8001_dev;

	psmpPayload = (struct smp_completion_resp *)(piomb + 4);
	status = le32_to_cpu(psmpPayload->status);
	tag = le32_to_cpu(psmpPayload->tag);

	ccb = &pm8001_ha->ccb_info[tag];
	t = ccb->task;
	ts = &t->task_status;
	pm8001_dev = ccb->device;
	if (status) {
		pm8001_dbg(pm8001_ha, FAIL, "smp IO status 0x%x\n", status);
		pm8001_dbg(pm8001_ha, IOERR,
			   "status:0x%x, tag:0x%x, task:0x%p\n",
			   status, tag, t);
	}
	if (unlikely(!t || !t->lldd_task || !t->dev))
		return;

	switch (status) {
	case IO_SUCCESS:
		pm8001_dbg(pm8001_ha, IO, "IO_SUCCESS\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAM_STAT_GOOD;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_ABORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_ABORTED IOMB\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_ABORTED_TASK;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_OVERFLOW:
		pm8001_dbg(pm8001_ha, IO, "IO_UNDERFLOW\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DATA_OVERRUN;
		ts->residual = 0;
		if (pm8001_dev)
			atomic_dec(&pm8001_dev->running_req);
		break;
	case IO_NO_DEVICE:
		pm8001_dbg(pm8001_ha, IO, "IO_NO_DEVICE\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_PHY_DOWN;
		break;
	case IO_ERROR_HW_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_HW_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAM_STAT_BUSY;
		break;
	case IO_XFER_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAM_STAT_BUSY;
		break;
	case IO_XFER_ERROR_PHY_NOT_READY:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_PHY_NOT_READY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAM_STAT_BUSY;
		break;
	case IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_PROTOCOL_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		break;
	case IO_OPEN_CNX_ERROR_ZONE_VIOLATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_ZONE_VIOLATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		break;
	case IO_OPEN_CNX_ERROR_BREAK:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_BREAK\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_CONT0;
		break;
	case IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_UNKNOWN;
		pm8001_handle_event(pm8001_ha,
				pm8001_dev,
				IO_OPEN_CNX_ERROR_IT_NEXUS_LOSS);
		break;
	case IO_OPEN_CNX_ERROR_BAD_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_BAD_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_BAD_DEST;
		break;
	case IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, IO, "IO_OPEN_CNX_ERROR_CONNECTION_RATE_NOT_SUPPORTED\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_CONN_RATE;
		break;
	case IO_OPEN_CNX_ERROR_WRONG_DESTINATION:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_WRONG_DESTINATION\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_WRONG_DEST;
		break;
	case IO_XFER_ERROR_RX_FRAME:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_ERROR_RX_FRAME\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		break;
	case IO_XFER_OPEN_RETRY_TIMEOUT:
		pm8001_dbg(pm8001_ha, IO, "IO_XFER_OPEN_RETRY_TIMEOUT\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_ERROR_INTERNAL_SMP_RESOURCE:
		pm8001_dbg(pm8001_ha, IO, "IO_ERROR_INTERNAL_SMP_RESOURCE\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_QUEUE_FULL;
		break;
	case IO_PORT_IN_RESET:
		pm8001_dbg(pm8001_ha, IO, "IO_PORT_IN_RESET\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_DS_NON_OPERATIONAL:
		pm8001_dbg(pm8001_ha, IO, "IO_DS_NON_OPERATIONAL\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		break;
	case IO_DS_IN_RECOVERY:
		pm8001_dbg(pm8001_ha, IO, "IO_DS_IN_RECOVERY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	case IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY:
		pm8001_dbg(pm8001_ha, IO,
			   "IO_OPEN_CNX_ERROR_HW_RESOURCE_BUSY\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_OPEN_REJECT;
		ts->open_rej_reason = SAS_OREJ_RSVD_RETRY;
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "Unknown status 0x%x\n", status);
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAS_DEV_NO_RESPONSE;
		/* not allowed case. Therefore, return failed status */
		break;
	}
	spin_lock_irqsave(&t->task_state_lock, flags);
	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
	t->task_state_flags |= SAS_TASK_STATE_DONE;
	if (unlikely((t->task_state_flags & SAS_TASK_STATE_ABORTED))) {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_dbg(pm8001_ha, FAIL, "task 0x%p done with io_status 0x%x resp 0x%x stat 0x%x but aborted by upper layer!\n",
			   t, status, ts->resp, ts->stat);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
	} else {
		spin_unlock_irqrestore(&t->task_state_lock, flags);
		pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
		mb();/* in order to force CPU ordering */
		t->task_done(t);
	}
}

void pm8001_mpi_set_dev_state_resp(struct pm8001_hba_info *pm8001_ha,
		void *piomb)
{
	struct set_dev_state_resp *pPayload =
		(struct set_dev_state_resp *)(piomb + 4);
	u32 tag = le32_to_cpu(pPayload->tag);
	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
	struct pm8001_device *pm8001_dev = ccb->device;
	u32 status = le32_to_cpu(pPayload->status);
	u32 device_id = le32_to_cpu(pPayload->device_id);
	u8 pds = le32_to_cpu(pPayload->pds_nds) & PDS_BITS;
	u8 nds = le32_to_cpu(pPayload->pds_nds) & NDS_BITS;
	pm8001_dbg(pm8001_ha, MSG, "Set device id = 0x%x state from 0x%x to 0x%x status = 0x%x!\n",
		   device_id, pds, nds, status);
	complete(pm8001_dev->setds_completion);
	ccb->task = NULL;
	ccb->ccb_tag = 0xFFFFFFFF;
	pm8001_tag_free(pm8001_ha, tag);
}

void pm8001_mpi_set_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct get_nvm_data_resp *pPayload =
		(struct get_nvm_data_resp *)(piomb + 4);
	u32 tag = le32_to_cpu(pPayload->tag);
	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
	complete(pm8001_ha->nvmd_completion);
	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
	if ((dlen_status & NVMD_STAT) != 0) {
		pm8001_dbg(pm8001_ha, FAIL, "Set nvm data error!\n");
		return;
	}
	ccb->task = NULL;
	ccb->ccb_tag = 0xFFFFFFFF;
	pm8001_tag_free(pm8001_ha, tag);
}

void
pm8001_mpi_get_nvmd_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct fw_control_ex    *fw_control_context;
	struct get_nvm_data_resp *pPayload =
		(struct get_nvm_data_resp *)(piomb + 4);
	u32 tag = le32_to_cpu(pPayload->tag);
	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
	u32 dlen_status = le32_to_cpu(pPayload->dlen_status);
	u32 ir_tds_bn_dps_das_nvm =
		le32_to_cpu(pPayload->ir_tda_bn_dps_das_nvm);
	void *virt_addr = pm8001_ha->memoryMap.region[NVMD].virt_ptr;
	fw_control_context = ccb->fw_control_context;

	pm8001_dbg(pm8001_ha, MSG, "Get nvm data complete!\n");
	if ((dlen_status & NVMD_STAT) != 0) {
		pm8001_dbg(pm8001_ha, FAIL, "Get nvm data error!\n");
		complete(pm8001_ha->nvmd_completion);
		return;
	}

	if (ir_tds_bn_dps_das_nvm & IPMode) {
		/* indirect mode - IR bit set */
		pm8001_dbg(pm8001_ha, MSG, "Get NVMD success, IR=1\n");
		if ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == TWI_DEVICE) {
			if (ir_tds_bn_dps_das_nvm == 0x80a80200) {
				memcpy(pm8001_ha->sas_addr,
				      ((u8 *)virt_addr + 4),
				       SAS_ADDR_SIZE);
				pm8001_dbg(pm8001_ha, MSG, "Get SAS address from VPD successfully!\n");
			}
		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == C_SEEPROM)
			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == VPD_FLASH) ||
			((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == EXPAN_ROM)) {
				;
		} else if (((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == AAP1_RDUMP)
			|| ((ir_tds_bn_dps_das_nvm & NVMD_TYPE) == IOP_RDUMP)) {
			;
		} else {
			/* Should not be happened*/
			pm8001_dbg(pm8001_ha, MSG,
				   "(IR=1)Wrong Device type 0x%x\n",
				   ir_tds_bn_dps_das_nvm);
		}
	} else /* direct mode */{
		pm8001_dbg(pm8001_ha, MSG,
			   "Get NVMD success, IR=0, dataLen=%d\n",
			   (dlen_status & NVMD_LEN) >> 24);
	}
	/* Though fw_control_context is freed below, usrAddr still needs
	 * to be updated as this holds the response to the request function
	 */
	memcpy(fw_control_context->usrAddr,
		pm8001_ha->memoryMap.region[NVMD].virt_ptr,
		fw_control_context->len);
	kfree(ccb->fw_control_context);
	/* To avoid race condition, complete should be
	 * called after the message is copied to
	 * fw_control_context->usrAddr
	 */
	complete(pm8001_ha->nvmd_completion);
	pm8001_dbg(pm8001_ha, MSG, "Set nvm data complete!\n");
	ccb->task = NULL;
	ccb->ccb_tag = 0xFFFFFFFF;
	pm8001_tag_free(pm8001_ha, tag);
}

int pm8001_mpi_local_phy_ctl(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	u32 tag;
	struct local_phy_ctl_resp *pPayload =
		(struct local_phy_ctl_resp *)(piomb + 4);
	u32 status = le32_to_cpu(pPayload->status);
	u32 phy_id = le32_to_cpu(pPayload->phyop_phyid) & ID_BITS;
	u32 phy_op = le32_to_cpu(pPayload->phyop_phyid) & OP_BITS;
	tag = le32_to_cpu(pPayload->tag);
	if (status != 0) {
		pm8001_dbg(pm8001_ha, MSG,
			   "%x phy execute %x phy op failed!\n",
			   phy_id, phy_op);
	} else {
		pm8001_dbg(pm8001_ha, MSG,
			   "%x phy execute %x phy op success!\n",
			   phy_id, phy_op);
		pm8001_ha->phy[phy_id].reset_success = true;
	}
	if (pm8001_ha->phy[phy_id].enable_completion) {
		complete(pm8001_ha->phy[phy_id].enable_completion);
		pm8001_ha->phy[phy_id].enable_completion = NULL;
	}
	pm8001_tag_free(pm8001_ha, tag);
	return 0;
}

/**
 * pm8001_bytes_dmaed - one of the interface function communication with libsas
 * @pm8001_ha: our hba card information
 * @i: which phy that received the event.
 *
 * when HBA driver received the identify done event or initiate FIS received
 * event(for SATA), it will invoke this function to notify the sas layer that
 * the sas toplogy has formed, please discover the the whole sas domain,
 * while receive a broadcast(change) primitive just tell the sas
 * layer to discover the changed domain rather than the whole domain.
 */
void pm8001_bytes_dmaed(struct pm8001_hba_info *pm8001_ha, int i)
{
	struct pm8001_phy *phy = &pm8001_ha->phy[i];
	struct asd_sas_phy *sas_phy = &phy->sas_phy;
	if (!phy->phy_attached)
		return;

	if (sas_phy->phy) {
		struct sas_phy *sphy = sas_phy->phy;
		sphy->negotiated_linkrate = sas_phy->linkrate;
		sphy->minimum_linkrate = phy->minimum_linkrate;
		sphy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
		sphy->maximum_linkrate = phy->maximum_linkrate;
		sphy->maximum_linkrate_hw = phy->maximum_linkrate;
	}

	if (phy->phy_type & PORT_TYPE_SAS) {
		struct sas_identify_frame *id;
		id = (struct sas_identify_frame *)phy->frame_rcvd;
		id->dev_type = phy->identify.device_type;
		id->initiator_bits = SAS_PROTOCOL_ALL;
		id->target_bits = phy->identify.target_port_protocols;
	} else if (phy->phy_type & PORT_TYPE_SATA) {
		/*Nothing*/
	}
	pm8001_dbg(pm8001_ha, MSG, "phy %d byte dmaded.\n", i);

	sas_phy->frame_rcvd_size = phy->frame_rcvd_size;
	pm8001_ha->sas->notify_port_event(sas_phy, PORTE_BYTES_DMAED);
}

/* Get the link rate speed  */
void pm8001_get_lrate_mode(struct pm8001_phy *phy, u8 link_rate)
{
	struct sas_phy *sas_phy = phy->sas_phy.phy;

	switch (link_rate) {
	case PHY_SPEED_120:
		phy->sas_phy.linkrate = SAS_LINK_RATE_12_0_GBPS;
		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_12_0_GBPS;
		break;
	case PHY_SPEED_60:
		phy->sas_phy.linkrate = SAS_LINK_RATE_6_0_GBPS;
		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_6_0_GBPS;
		break;
	case PHY_SPEED_30:
		phy->sas_phy.linkrate = SAS_LINK_RATE_3_0_GBPS;
		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_3_0_GBPS;
		break;
	case PHY_SPEED_15:
		phy->sas_phy.linkrate = SAS_LINK_RATE_1_5_GBPS;
		phy->sas_phy.phy->negotiated_linkrate = SAS_LINK_RATE_1_5_GBPS;
		break;
	}
	sas_phy->negotiated_linkrate = phy->sas_phy.linkrate;
	sas_phy->maximum_linkrate_hw = SAS_LINK_RATE_6_0_GBPS;
	sas_phy->minimum_linkrate_hw = SAS_LINK_RATE_1_5_GBPS;
	sas_phy->maximum_linkrate = SAS_LINK_RATE_6_0_GBPS;
	sas_phy->minimum_linkrate = SAS_LINK_RATE_1_5_GBPS;
}

/**
 * asd_get_attached_sas_addr -- extract/generate attached SAS address
 * @phy: pointer to asd_phy
 * @sas_addr: pointer to buffer where the SAS address is to be written
 *
 * This function extracts the SAS address from an IDENTIFY frame
 * received.  If OOB is SATA, then a SAS address is generated from the
 * HA tables.
 *
 * LOCKING: the frame_rcvd_lock needs to be held since this parses the frame
 * buffer.
 */
void pm8001_get_attached_sas_addr(struct pm8001_phy *phy,
	u8 *sas_addr)
{
	if (phy->sas_phy.frame_rcvd[0] == 0x34
		&& phy->sas_phy.oob_mode == SATA_OOB_MODE) {
		struct pm8001_hba_info *pm8001_ha = phy->sas_phy.ha->lldd_ha;
		/* FIS device-to-host */
		u64 addr = be64_to_cpu(*(__be64 *)pm8001_ha->sas_addr);
		addr += phy->sas_phy.id;
		*(__be64 *)sas_addr = cpu_to_be64(addr);
	} else {
		struct sas_identify_frame *idframe =
			(void *) phy->sas_phy.frame_rcvd;
		memcpy(sas_addr, idframe->sas_addr, SAS_ADDR_SIZE);
	}
}

/**
 * pm8001_hw_event_ack_req- For PM8001,some events need to acknowage to FW.
 * @pm8001_ha: our hba card information
 * @Qnum: the outbound queue message number.
 * @SEA: source of event to ack
 * @port_id: port id.
 * @phyId: phy id.
 * @param0: parameter 0.
 * @param1: parameter 1.
 */
static void pm8001_hw_event_ack_req(struct pm8001_hba_info *pm8001_ha,
	u32 Qnum, u32 SEA, u32 port_id, u32 phyId, u32 param0, u32 param1)
{
	struct hw_event_ack_req	 payload;
	u32 opc = OPC_INB_SAS_HW_EVENT_ACK;

	struct inbound_queue_table *circularQ;

	memset((u8 *)&payload, 0, sizeof(payload));
	circularQ = &pm8001_ha->inbnd_q_tbl[Qnum];
	payload.tag = cpu_to_le32(1);
	payload.sea_phyid_portid = cpu_to_le32(((SEA & 0xFFFF) << 8) |
		((phyId & 0x0F) << 4) | (port_id & 0x0F));
	payload.param0 = cpu_to_le32(param0);
	payload.param1 = cpu_to_le32(param1);
	pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
}

static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
	u32 phyId, u32 phy_op);

/**
 * hw_event_sas_phy_up -FW tells me a SAS phy up event.
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 */
static void
hw_event_sas_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct hw_event_resp *pPayload =
		(struct hw_event_resp *)(piomb + 4);
	u32 lr_evt_status_phyid_portid =
		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
	u8 link_rate =
		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
	u8 phy_id =
		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
	u8 portstate = (u8)(npip_portstate & 0x0000000F);
	struct pm8001_port *port = &pm8001_ha->port[port_id];
	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
	unsigned long flags;
	u8 deviceType = pPayload->sas_identify.dev_type;
	port->port_state =  portstate;
	phy->phy_state = PHY_STATE_LINK_UP_SPC;
	pm8001_dbg(pm8001_ha, MSG,
		   "HW_EVENT_SAS_PHY_UP port id = %d, phy id = %d\n",
		   port_id, phy_id);

	switch (deviceType) {
	case SAS_PHY_UNUSED:
		pm8001_dbg(pm8001_ha, MSG, "device type no device.\n");
		break;
	case SAS_END_DEVICE:
		pm8001_dbg(pm8001_ha, MSG, "end device.\n");
		pm8001_chip_phy_ctl_req(pm8001_ha, phy_id,
			PHY_NOTIFY_ENABLE_SPINUP);
		port->port_attached = 1;
		pm8001_get_lrate_mode(phy, link_rate);
		break;
	case SAS_EDGE_EXPANDER_DEVICE:
		pm8001_dbg(pm8001_ha, MSG, "expander device.\n");
		port->port_attached = 1;
		pm8001_get_lrate_mode(phy, link_rate);
		break;
	case SAS_FANOUT_EXPANDER_DEVICE:
		pm8001_dbg(pm8001_ha, MSG, "fanout expander device.\n");
		port->port_attached = 1;
		pm8001_get_lrate_mode(phy, link_rate);
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "unknown device type(%x)\n",
			   deviceType);
		break;
	}
	phy->phy_type |= PORT_TYPE_SAS;
	phy->identify.device_type = deviceType;
	phy->phy_attached = 1;
	if (phy->identify.device_type == SAS_END_DEVICE)
		phy->identify.target_port_protocols = SAS_PROTOCOL_SSP;
	else if (phy->identify.device_type != SAS_PHY_UNUSED)
		phy->identify.target_port_protocols = SAS_PROTOCOL_SMP;
	phy->sas_phy.oob_mode = SAS_OOB_MODE;
	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
	memcpy(phy->frame_rcvd, &pPayload->sas_identify,
		sizeof(struct sas_identify_frame)-4);
	phy->frame_rcvd_size = sizeof(struct sas_identify_frame) - 4;
	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
	if (pm8001_ha->flags == PM8001F_RUN_TIME)
		mdelay(200);/*delay a moment to wait disk to spinup*/
	pm8001_bytes_dmaed(pm8001_ha, phy_id);
}

/**
 * hw_event_sata_phy_up -FW tells me a SATA phy up event.
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 */
static void
hw_event_sata_phy_up(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct hw_event_resp *pPayload =
		(struct hw_event_resp *)(piomb + 4);
	u32 lr_evt_status_phyid_portid =
		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
	u8 link_rate =
		(u8)((lr_evt_status_phyid_portid & 0xF0000000) >> 28);
	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
	u8 phy_id =
		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
	u8 portstate = (u8)(npip_portstate & 0x0000000F);
	struct pm8001_port *port = &pm8001_ha->port[port_id];
	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
	unsigned long flags;
	pm8001_dbg(pm8001_ha, DEVIO, "HW_EVENT_SATA_PHY_UP port id = %d, phy id = %d\n",
		   port_id, phy_id);
	port->port_state =  portstate;
	phy->phy_state = PHY_STATE_LINK_UP_SPC;
	port->port_attached = 1;
	pm8001_get_lrate_mode(phy, link_rate);
	phy->phy_type |= PORT_TYPE_SATA;
	phy->phy_attached = 1;
	phy->sas_phy.oob_mode = SATA_OOB_MODE;
	sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_DONE);
	spin_lock_irqsave(&phy->sas_phy.frame_rcvd_lock, flags);
	memcpy(phy->frame_rcvd, ((u8 *)&pPayload->sata_fis - 4),
		sizeof(struct dev_to_host_fis));
	phy->frame_rcvd_size = sizeof(struct dev_to_host_fis);
	phy->identify.target_port_protocols = SAS_PROTOCOL_SATA;
	phy->identify.device_type = SAS_SATA_DEV;
	pm8001_get_attached_sas_addr(phy, phy->sas_phy.attached_sas_addr);
	spin_unlock_irqrestore(&phy->sas_phy.frame_rcvd_lock, flags);
	pm8001_bytes_dmaed(pm8001_ha, phy_id);
}

/**
 * hw_event_phy_down -we should notify the libsas the phy is down.
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 */
static void
hw_event_phy_down(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct hw_event_resp *pPayload =
		(struct hw_event_resp *)(piomb + 4);
	u32 lr_evt_status_phyid_portid =
		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
	u8 phy_id =
		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
	u32 npip_portstate = le32_to_cpu(pPayload->npip_portstate);
	u8 portstate = (u8)(npip_portstate & 0x0000000F);
	struct pm8001_port *port = &pm8001_ha->port[port_id];
	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
	port->port_state =  portstate;
	phy->phy_type = 0;
	phy->identify.device_type = 0;
	phy->phy_attached = 0;
	memset(&phy->dev_sas_addr, 0, SAS_ADDR_SIZE);
	switch (portstate) {
	case PORT_VALID:
		break;
	case PORT_INVALID:
		pm8001_dbg(pm8001_ha, MSG, " PortInvalid portID %d\n",
			   port_id);
		pm8001_dbg(pm8001_ha, MSG,
			   " Last phy Down and port invalid\n");
		port->port_attached = 0;
		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
			port_id, phy_id, 0, 0);
		break;
	case PORT_IN_RESET:
		pm8001_dbg(pm8001_ha, MSG, " Port In Reset portID %d\n",
			   port_id);
		break;
	case PORT_NOT_ESTABLISHED:
		pm8001_dbg(pm8001_ha, MSG,
			   " phy Down and PORT_NOT_ESTABLISHED\n");
		port->port_attached = 0;
		break;
	case PORT_LOSTCOMM:
		pm8001_dbg(pm8001_ha, MSG, " phy Down and PORT_LOSTCOMM\n");
		pm8001_dbg(pm8001_ha, MSG,
			   " Last phy Down and port invalid\n");
		port->port_attached = 0;
		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_PHY_DOWN,
			port_id, phy_id, 0, 0);
		break;
	default:
		port->port_attached = 0;
		pm8001_dbg(pm8001_ha, DEVIO, " phy Down and(default) = %x\n",
			   portstate);
		break;

	}
}

/**
 * pm8001_mpi_reg_resp -process register device ID response.
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 *
 * when sas layer find a device it will notify LLDD, then the driver register
 * the domain device to FW, this event is the return device ID which the FW
 * has assigned, from now,inter-communication with FW is no longer using the
 * SAS address, use device ID which FW assigned.
 */
int pm8001_mpi_reg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	u32 status;
	u32 device_id;
	u32 htag;
	struct pm8001_ccb_info *ccb;
	struct pm8001_device *pm8001_dev;
	struct dev_reg_resp *registerRespPayload =
		(struct dev_reg_resp *)(piomb + 4);

	htag = le32_to_cpu(registerRespPayload->tag);
	ccb = &pm8001_ha->ccb_info[htag];
	pm8001_dev = ccb->device;
	status = le32_to_cpu(registerRespPayload->status);
	device_id = le32_to_cpu(registerRespPayload->device_id);
	pm8001_dbg(pm8001_ha, MSG, " register device is status = %d\n",
		   status);
	switch (status) {
	case DEVREG_SUCCESS:
		pm8001_dbg(pm8001_ha, MSG, "DEVREG_SUCCESS\n");
		pm8001_dev->device_id = device_id;
		break;
	case DEVREG_FAILURE_OUT_OF_RESOURCE:
		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_OUT_OF_RESOURCE\n");
		break;
	case DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED:
		pm8001_dbg(pm8001_ha, MSG,
			   "DEVREG_FAILURE_DEVICE_ALREADY_REGISTERED\n");
		break;
	case DEVREG_FAILURE_INVALID_PHY_ID:
		pm8001_dbg(pm8001_ha, MSG, "DEVREG_FAILURE_INVALID_PHY_ID\n");
		break;
	case DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED:
		pm8001_dbg(pm8001_ha, MSG,
			   "DEVREG_FAILURE_PHY_ID_ALREADY_REGISTERED\n");
		break;
	case DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE:
		pm8001_dbg(pm8001_ha, MSG,
			   "DEVREG_FAILURE_PORT_ID_OUT_OF_RANGE\n");
		break;
	case DEVREG_FAILURE_PORT_NOT_VALID_STATE:
		pm8001_dbg(pm8001_ha, MSG,
			   "DEVREG_FAILURE_PORT_NOT_VALID_STATE\n");
		break;
	case DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID:
		pm8001_dbg(pm8001_ha, MSG,
			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID\n");
		break;
	default:
		pm8001_dbg(pm8001_ha, MSG,
			   "DEVREG_FAILURE_DEVICE_TYPE_NOT_SUPPORTED\n");
		break;
	}
	complete(pm8001_dev->dcompletion);
	ccb->task = NULL;
	ccb->ccb_tag = 0xFFFFFFFF;
	pm8001_tag_free(pm8001_ha, htag);
	return 0;
}

int pm8001_mpi_dereg_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	u32 status;
	u32 device_id;
	struct dev_reg_resp *registerRespPayload =
		(struct dev_reg_resp *)(piomb + 4);

	status = le32_to_cpu(registerRespPayload->status);
	device_id = le32_to_cpu(registerRespPayload->device_id);
	if (status != 0)
		pm8001_dbg(pm8001_ha, MSG,
			   " deregister device failed ,status = %x, device_id = %x\n",
			   status, device_id);
	return 0;
}

/**
 * fw_flash_update_resp - Response from FW for flash update command.
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 */
int pm8001_mpi_fw_flash_update_resp(struct pm8001_hba_info *pm8001_ha,
		void *piomb)
{
	u32 status;
	struct fw_flash_Update_resp *ppayload =
		(struct fw_flash_Update_resp *)(piomb + 4);
	u32 tag = le32_to_cpu(ppayload->tag);
	struct pm8001_ccb_info *ccb = &pm8001_ha->ccb_info[tag];
	status = le32_to_cpu(ppayload->status);
	switch (status) {
	case FLASH_UPDATE_COMPLETE_PENDING_REBOOT:
		pm8001_dbg(pm8001_ha, MSG,
			   ": FLASH_UPDATE_COMPLETE_PENDING_REBOOT\n");
		break;
	case FLASH_UPDATE_IN_PROGRESS:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_IN_PROGRESS\n");
		break;
	case FLASH_UPDATE_HDR_ERR:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HDR_ERR\n");
		break;
	case FLASH_UPDATE_OFFSET_ERR:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_OFFSET_ERR\n");
		break;
	case FLASH_UPDATE_CRC_ERR:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_CRC_ERR\n");
		break;
	case FLASH_UPDATE_LENGTH_ERR:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_LENGTH_ERR\n");
		break;
	case FLASH_UPDATE_HW_ERR:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_HW_ERR\n");
		break;
	case FLASH_UPDATE_DNLD_NOT_SUPPORTED:
		pm8001_dbg(pm8001_ha, MSG,
			   ": FLASH_UPDATE_DNLD_NOT_SUPPORTED\n");
		break;
	case FLASH_UPDATE_DISABLED:
		pm8001_dbg(pm8001_ha, MSG, ": FLASH_UPDATE_DISABLED\n");
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "No matched status = %d\n",
			   status);
		break;
	}
	kfree(ccb->fw_control_context);
	ccb->task = NULL;
	ccb->ccb_tag = 0xFFFFFFFF;
	pm8001_tag_free(pm8001_ha, tag);
	complete(pm8001_ha->nvmd_completion);
	return 0;
}

int pm8001_mpi_general_event(struct pm8001_hba_info *pm8001_ha , void *piomb)
{
	u32 status;
	int i;
	struct general_event_resp *pPayload =
		(struct general_event_resp *)(piomb + 4);
	status = le32_to_cpu(pPayload->status);
	pm8001_dbg(pm8001_ha, MSG, " status = 0x%x\n", status);
	for (i = 0; i < GENERAL_EVENT_PAYLOAD; i++)
		pm8001_dbg(pm8001_ha, MSG, "inb_IOMB_payload[0x%x] 0x%x,\n",
			   i,
			   pPayload->inb_IOMB_payload[i]);
	return 0;
}

int pm8001_mpi_task_abort_resp(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	struct sas_task *t;
	struct pm8001_ccb_info *ccb;
	unsigned long flags;
	u32 status ;
	u32 tag, scp;
	struct task_status_struct *ts;
	struct pm8001_device *pm8001_dev;

	struct task_abort_resp *pPayload =
		(struct task_abort_resp *)(piomb + 4);

	status = le32_to_cpu(pPayload->status);
	tag = le32_to_cpu(pPayload->tag);
	if (!tag) {
		pm8001_dbg(pm8001_ha, FAIL, " TAG NULL. RETURNING !!!\n");
		return -1;
	}

	scp = le32_to_cpu(pPayload->scp);
	ccb = &pm8001_ha->ccb_info[tag];
	t = ccb->task;
	pm8001_dev = ccb->device; /* retrieve device */

	if (!t)	{
		pm8001_dbg(pm8001_ha, FAIL, " TASK NULL. RETURNING !!!\n");
		return -1;
	}
	ts = &t->task_status;
	if (status != 0)
		pm8001_dbg(pm8001_ha, FAIL, "task abort failed status 0x%x ,tag = 0x%x, scp= 0x%x\n",
			   status, tag, scp);
	switch (status) {
	case IO_SUCCESS:
		pm8001_dbg(pm8001_ha, EH, "IO_SUCCESS\n");
		ts->resp = SAS_TASK_COMPLETE;
		ts->stat = SAM_STAT_GOOD;
		break;
	case IO_NOT_VALID:
		pm8001_dbg(pm8001_ha, EH, "IO_NOT_VALID\n");
		ts->resp = TMF_RESP_FUNC_FAILED;
		break;
	}
	spin_lock_irqsave(&t->task_state_lock, flags);
	t->task_state_flags &= ~SAS_TASK_STATE_PENDING;
	t->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
	t->task_state_flags |= SAS_TASK_STATE_DONE;
	spin_unlock_irqrestore(&t->task_state_lock, flags);
	pm8001_ccb_task_free(pm8001_ha, t, ccb, tag);
	mb();

	if (pm8001_dev->id & NCQ_ABORT_ALL_FLAG) {
		pm8001_tag_free(pm8001_ha, tag);
		sas_free_task(t);
		/* clear the flag */
		pm8001_dev->id &= 0xBFFFFFFF;
	} else
		t->task_done(t);

	return 0;
}

/**
 * mpi_hw_event -The hw event has come.
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 */
static int mpi_hw_event(struct pm8001_hba_info *pm8001_ha, void* piomb)
{
	unsigned long flags;
	struct hw_event_resp *pPayload =
		(struct hw_event_resp *)(piomb + 4);
	u32 lr_evt_status_phyid_portid =
		le32_to_cpu(pPayload->lr_evt_status_phyid_portid);
	u8 port_id = (u8)(lr_evt_status_phyid_portid & 0x0000000F);
	u8 phy_id =
		(u8)((lr_evt_status_phyid_portid & 0x000000F0) >> 4);
	u16 eventType =
		(u16)((lr_evt_status_phyid_portid & 0x00FFFF00) >> 8);
	u8 status =
		(u8)((lr_evt_status_phyid_portid & 0x0F000000) >> 24);
	struct sas_ha_struct *sas_ha = pm8001_ha->sas;
	struct pm8001_phy *phy = &pm8001_ha->phy[phy_id];
	struct asd_sas_phy *sas_phy = sas_ha->sas_phy[phy_id];
	pm8001_dbg(pm8001_ha, DEVIO,
		   "SPC HW event for portid:%d, phyid:%d, event:%x, status:%x\n",
		   port_id, phy_id, eventType, status);
	switch (eventType) {
	case HW_EVENT_PHY_START_STATUS:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS status = %x\n",
			   status);
		if (status == 0) {
			phy->phy_state = 1;
			if (pm8001_ha->flags == PM8001F_RUN_TIME &&
					phy->enable_completion != NULL)
				complete(phy->enable_completion);
		}
		break;
	case HW_EVENT_SAS_PHY_UP:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_START_STATUS\n");
		hw_event_sas_phy_up(pm8001_ha, piomb);
		break;
	case HW_EVENT_SATA_PHY_UP:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_PHY_UP\n");
		hw_event_sata_phy_up(pm8001_ha, piomb);
		break;
	case HW_EVENT_PHY_STOP_STATUS:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_STOP_STATUS status = %x\n",
			   status);
		if (status == 0)
			phy->phy_state = 0;
		break;
	case HW_EVENT_SATA_SPINUP_HOLD:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_SATA_SPINUP_HOLD\n");
		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_SPINUP_HOLD);
		break;
	case HW_EVENT_PHY_DOWN:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_DOWN\n");
		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_LOSS_OF_SIGNAL);
		phy->phy_attached = 0;
		phy->phy_state = 0;
		hw_event_phy_down(pm8001_ha, piomb);
		break;
	case HW_EVENT_PORT_INVALID:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_INVALID\n");
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	/* the broadcast change primitive received, tell the LIBSAS this event
	to revalidate the sas domain*/
	case HW_EVENT_BROADCAST_CHANGE:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_CHANGE\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0, HW_EVENT_BROADCAST_CHANGE,
			port_id, phy_id, 1, 0);
		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
		sas_phy->sas_prim = HW_EVENT_BROADCAST_CHANGE;
		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
		break;
	case HW_EVENT_PHY_ERROR:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PHY_ERROR\n");
		sas_phy_disconnected(&phy->sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_phy_event(&phy->sas_phy, PHYE_OOB_ERROR);
		break;
	case HW_EVENT_BROADCAST_EXP:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_EXP\n");
		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
		sas_phy->sas_prim = HW_EVENT_BROADCAST_EXP;
		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
		break;
	case HW_EVENT_LINK_ERR_INVALID_DWORD:
		pm8001_dbg(pm8001_ha, MSG,
			   "HW_EVENT_LINK_ERR_INVALID_DWORD\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0,
			HW_EVENT_LINK_ERR_INVALID_DWORD, port_id, phy_id, 0, 0);
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_LINK_ERR_DISPARITY_ERROR:
		pm8001_dbg(pm8001_ha, MSG,
			   "HW_EVENT_LINK_ERR_DISPARITY_ERROR\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0,
			HW_EVENT_LINK_ERR_DISPARITY_ERROR,
			port_id, phy_id, 0, 0);
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_LINK_ERR_CODE_VIOLATION:
		pm8001_dbg(pm8001_ha, MSG,
			   "HW_EVENT_LINK_ERR_CODE_VIOLATION\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0,
			HW_EVENT_LINK_ERR_CODE_VIOLATION,
			port_id, phy_id, 0, 0);
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH:
		pm8001_dbg(pm8001_ha, MSG,
			   "HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0,
			HW_EVENT_LINK_ERR_LOSS_OF_DWORD_SYNCH,
			port_id, phy_id, 0, 0);
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_MALFUNCTION:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_MALFUNCTION\n");
		break;
	case HW_EVENT_BROADCAST_SES:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_BROADCAST_SES\n");
		spin_lock_irqsave(&sas_phy->sas_prim_lock, flags);
		sas_phy->sas_prim = HW_EVENT_BROADCAST_SES;
		spin_unlock_irqrestore(&sas_phy->sas_prim_lock, flags);
		sas_ha->notify_port_event(sas_phy, PORTE_BROADCAST_RCVD);
		break;
	case HW_EVENT_INBOUND_CRC_ERROR:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_INBOUND_CRC_ERROR\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0,
			HW_EVENT_INBOUND_CRC_ERROR,
			port_id, phy_id, 0, 0);
		break;
	case HW_EVENT_HARD_RESET_RECEIVED:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_HARD_RESET_RECEIVED\n");
		sas_ha->notify_port_event(sas_phy, PORTE_HARD_RESET);
		break;
	case HW_EVENT_ID_FRAME_TIMEOUT:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_ID_FRAME_TIMEOUT\n");
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_LINK_ERR_PHY_RESET_FAILED:
		pm8001_dbg(pm8001_ha, MSG,
			   "HW_EVENT_LINK_ERR_PHY_RESET_FAILED\n");
		pm8001_hw_event_ack_req(pm8001_ha, 0,
			HW_EVENT_LINK_ERR_PHY_RESET_FAILED,
			port_id, phy_id, 0, 0);
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_PORT_RESET_TIMER_TMO:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_TIMER_TMO\n");
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_PORT_RECOVERY_TIMER_TMO:
		pm8001_dbg(pm8001_ha, MSG,
			   "HW_EVENT_PORT_RECOVERY_TIMER_TMO\n");
		sas_phy_disconnected(sas_phy);
		phy->phy_attached = 0;
		sas_ha->notify_port_event(sas_phy, PORTE_LINK_RESET_ERR);
		break;
	case HW_EVENT_PORT_RECOVER:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RECOVER\n");
		break;
	case HW_EVENT_PORT_RESET_COMPLETE:
		pm8001_dbg(pm8001_ha, MSG, "HW_EVENT_PORT_RESET_COMPLETE\n");
		break;
	case EVENT_BROADCAST_ASYNCH_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "EVENT_BROADCAST_ASYNCH_EVENT\n");
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO, "Unknown event type = %x\n",
			   eventType);
		break;
	}
	return 0;
}

/**
 * process_one_iomb - process one outbound Queue memory block
 * @pm8001_ha: our hba card information
 * @piomb: IO message buffer
 */
static void process_one_iomb(struct pm8001_hba_info *pm8001_ha, void *piomb)
{
	__le32 pHeader = *(__le32 *)piomb;
	u8 opc = (u8)((le32_to_cpu(pHeader)) & 0xFFF);

	pm8001_dbg(pm8001_ha, MSG, "process_one_iomb:\n");

	switch (opc) {
	case OPC_OUB_ECHO:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_ECHO\n");
		break;
	case OPC_OUB_HW_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_HW_EVENT\n");
		mpi_hw_event(pm8001_ha, piomb);
		break;
	case OPC_OUB_SSP_COMP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_COMP\n");
		mpi_ssp_completion(pm8001_ha, piomb);
		break;
	case OPC_OUB_SMP_COMP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_COMP\n");
		mpi_smp_completion(pm8001_ha, piomb);
		break;
	case OPC_OUB_LOCAL_PHY_CNTRL:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_LOCAL_PHY_CNTRL\n");
		pm8001_mpi_local_phy_ctl(pm8001_ha, piomb);
		break;
	case OPC_OUB_DEV_REGIST:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_REGIST\n");
		pm8001_mpi_reg_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_DEREG_DEV:
		pm8001_dbg(pm8001_ha, MSG, "unregister the device\n");
		pm8001_mpi_dereg_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_GET_DEV_HANDLE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEV_HANDLE\n");
		break;
	case OPC_OUB_SATA_COMP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_COMP\n");
		mpi_sata_completion(pm8001_ha, piomb);
		break;
	case OPC_OUB_SATA_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_EVENT\n");
		mpi_sata_event(pm8001_ha, piomb);
		break;
	case OPC_OUB_SSP_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_EVENT\n");
		mpi_ssp_event(pm8001_ha, piomb);
		break;
	case OPC_OUB_DEV_HANDLE_ARRIV:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_HANDLE_ARRIV\n");
		/*This is for target*/
		break;
	case OPC_OUB_SSP_RECV_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_RECV_EVENT\n");
		/*This is for target*/
		break;
	case OPC_OUB_DEV_INFO:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEV_INFO\n");
		break;
	case OPC_OUB_FW_FLASH_UPDATE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_FW_FLASH_UPDATE\n");
		pm8001_mpi_fw_flash_update_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_GPIO_RESPONSE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_RESPONSE\n");
		break;
	case OPC_OUB_GPIO_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GPIO_EVENT\n");
		break;
	case OPC_OUB_GENERAL_EVENT:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GENERAL_EVENT\n");
		pm8001_mpi_general_event(pm8001_ha, piomb);
		break;
	case OPC_OUB_SSP_ABORT_RSP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SSP_ABORT_RSP\n");
		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_SATA_ABORT_RSP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SATA_ABORT_RSP\n");
		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_SAS_DIAG_MODE_START_END:
		pm8001_dbg(pm8001_ha, MSG,
			   "OPC_OUB_SAS_DIAG_MODE_START_END\n");
		break;
	case OPC_OUB_SAS_DIAG_EXECUTE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_DIAG_EXECUTE\n");
		break;
	case OPC_OUB_GET_TIME_STAMP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_TIME_STAMP\n");
		break;
	case OPC_OUB_SAS_HW_EVENT_ACK:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_HW_EVENT_ACK\n");
		break;
	case OPC_OUB_PORT_CONTROL:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_PORT_CONTROL\n");
		break;
	case OPC_OUB_SMP_ABORT_RSP:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SMP_ABORT_RSP\n");
		pm8001_mpi_task_abort_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_GET_NVMD_DATA:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_NVMD_DATA\n");
		pm8001_mpi_get_nvmd_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_SET_NVMD_DATA:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_NVMD_DATA\n");
		pm8001_mpi_set_nvmd_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_DEVICE_HANDLE_REMOVAL:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_DEVICE_HANDLE_REMOVAL\n");
		break;
	case OPC_OUB_SET_DEVICE_STATE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEVICE_STATE\n");
		pm8001_mpi_set_dev_state_resp(pm8001_ha, piomb);
		break;
	case OPC_OUB_GET_DEVICE_STATE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_GET_DEVICE_STATE\n");
		break;
	case OPC_OUB_SET_DEV_INFO:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SET_DEV_INFO\n");
		break;
	case OPC_OUB_SAS_RE_INITIALIZE:
		pm8001_dbg(pm8001_ha, MSG, "OPC_OUB_SAS_RE_INITIALIZE\n");
		break;
	default:
		pm8001_dbg(pm8001_ha, DEVIO,
			   "Unknown outbound Queue IOMB OPC = %x\n",
			   opc);
		break;
	}
}

static int process_oq(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
	struct outbound_queue_table *circularQ;
	void *pMsg1 = NULL;
	u8 bc;
	u32 ret = MPI_IO_STATUS_FAIL;
	unsigned long flags;

	spin_lock_irqsave(&pm8001_ha->lock, flags);
	circularQ = &pm8001_ha->outbnd_q_tbl[vec];
	do {
		ret = pm8001_mpi_msg_consume(pm8001_ha, circularQ, &pMsg1, &bc);
		if (MPI_IO_STATUS_SUCCESS == ret) {
			/* process the outbound message */
			process_one_iomb(pm8001_ha, (void *)(pMsg1 - 4));
			/* free the message from the outbound circular buffer */
			pm8001_mpi_msg_free_set(pm8001_ha, pMsg1,
							circularQ, bc);
		}
		if (MPI_IO_STATUS_BUSY == ret) {
			/* Update the producer index from SPC */
			circularQ->producer_index =
				cpu_to_le32(pm8001_read_32(circularQ->pi_virt));
			if (le32_to_cpu(circularQ->producer_index) ==
				circularQ->consumer_idx)
				/* OQ is empty */
				break;
		}
	} while (1);
	spin_unlock_irqrestore(&pm8001_ha->lock, flags);
	return ret;
}

/* DMA_... to our direction translation. */
static const u8 data_dir_flags[] = {
	[DMA_BIDIRECTIONAL]	= DATA_DIR_BYRECIPIENT,	/* UNSPECIFIED */
	[DMA_TO_DEVICE]		= DATA_DIR_OUT,		/* OUTBOUND */
	[DMA_FROM_DEVICE]	= DATA_DIR_IN,		/* INBOUND */
	[DMA_NONE]		= DATA_DIR_NONE,	/* NO TRANSFER */
};
void
pm8001_chip_make_sg(struct scatterlist *scatter, int nr, void *prd)
{
	int i;
	struct scatterlist *sg;
	struct pm8001_prd *buf_prd = prd;

	for_each_sg(scatter, sg, nr, i) {
		buf_prd->addr = cpu_to_le64(sg_dma_address(sg));
		buf_prd->im_len.len = cpu_to_le32(sg_dma_len(sg));
		buf_prd->im_len.e = 0;
		buf_prd++;
	}
}

static void build_smp_cmd(u32 deviceID, __le32 hTag, struct smp_req *psmp_cmd)
{
	psmp_cmd->tag = hTag;
	psmp_cmd->device_id = cpu_to_le32(deviceID);
	psmp_cmd->len_ip_ir = cpu_to_le32(1|(1 << 1));
}

/**
 * pm8001_chip_smp_req - send a SMP task to FW
 * @pm8001_ha: our hba card information.
 * @ccb: the ccb information this request used.
 */
static int pm8001_chip_smp_req(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_ccb_info *ccb)
{
	int elem, rc;
	struct sas_task *task = ccb->task;
	struct domain_device *dev = task->dev;
	struct pm8001_device *pm8001_dev = dev->lldd_dev;
	struct scatterlist *sg_req, *sg_resp;
	u32 req_len, resp_len;
	struct smp_req smp_cmd;
	u32 opc;
	struct inbound_queue_table *circularQ;

	memset(&smp_cmd, 0, sizeof(smp_cmd));
	/*
	 * DMA-map SMP request, response buffers
	 */
	sg_req = &task->smp_task.smp_req;
	elem = dma_map_sg(pm8001_ha->dev, sg_req, 1, DMA_TO_DEVICE);
	if (!elem)
		return -ENOMEM;
	req_len = sg_dma_len(sg_req);

	sg_resp = &task->smp_task.smp_resp;
	elem = dma_map_sg(pm8001_ha->dev, sg_resp, 1, DMA_FROM_DEVICE);
	if (!elem) {
		rc = -ENOMEM;
		goto err_out;
	}
	resp_len = sg_dma_len(sg_resp);
	/* must be in dwords */
	if ((req_len & 0x3) || (resp_len & 0x3)) {
		rc = -EINVAL;
		goto err_out_2;
	}

	opc = OPC_INB_SMP_REQUEST;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	smp_cmd.tag = cpu_to_le32(ccb->ccb_tag);
	smp_cmd.long_smp_req.long_req_addr =
		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_req));
	smp_cmd.long_smp_req.long_req_size =
		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_req)-4);
	smp_cmd.long_smp_req.long_resp_addr =
		cpu_to_le64((u64)sg_dma_address(&task->smp_task.smp_resp));
	smp_cmd.long_smp_req.long_resp_size =
		cpu_to_le32((u32)sg_dma_len(&task->smp_task.smp_resp)-4);
	build_smp_cmd(pm8001_dev->device_id, smp_cmd.tag, &smp_cmd);
	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc,
			&smp_cmd, sizeof(smp_cmd), 0);
	if (rc)
		goto err_out_2;

	return 0;

err_out_2:
	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_resp, 1,
			DMA_FROM_DEVICE);
err_out:
	dma_unmap_sg(pm8001_ha->dev, &ccb->task->smp_task.smp_req, 1,
			DMA_TO_DEVICE);
	return rc;
}

/**
 * pm8001_chip_ssp_io_req - send a SSP task to FW
 * @pm8001_ha: our hba card information.
 * @ccb: the ccb information this request used.
 */
static int pm8001_chip_ssp_io_req(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_ccb_info *ccb)
{
	struct sas_task *task = ccb->task;
	struct domain_device *dev = task->dev;
	struct pm8001_device *pm8001_dev = dev->lldd_dev;
	struct ssp_ini_io_start_req ssp_cmd;
	u32 tag = ccb->ccb_tag;
	int ret;
	u64 phys_addr;
	struct inbound_queue_table *circularQ;
	u32 opc = OPC_INB_SSPINIIOSTART;
	memset(&ssp_cmd, 0, sizeof(ssp_cmd));
	memcpy(ssp_cmd.ssp_iu.lun, task->ssp_task.LUN, 8);
	ssp_cmd.dir_m_tlr =
		cpu_to_le32(data_dir_flags[task->data_dir] << 8 | 0x0);/*0 for
	SAS 1.1 compatible TLR*/
	ssp_cmd.data_len = cpu_to_le32(task->total_xfer_len);
	ssp_cmd.device_id = cpu_to_le32(pm8001_dev->device_id);
	ssp_cmd.tag = cpu_to_le32(tag);
	if (task->ssp_task.enable_first_burst)
		ssp_cmd.ssp_iu.efb_prio_attr |= 0x80;
	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_prio << 3);
	ssp_cmd.ssp_iu.efb_prio_attr |= (task->ssp_task.task_attr & 7);
	memcpy(ssp_cmd.ssp_iu.cdb, task->ssp_task.cmd->cmnd,
	       task->ssp_task.cmd->cmd_len);
	circularQ = &pm8001_ha->inbnd_q_tbl[0];

	/* fill in PRD (scatter/gather) table, if any */
	if (task->num_scatter > 1) {
		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
		phys_addr = ccb->ccb_dma_handle;
		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(phys_addr));
		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(phys_addr));
		ssp_cmd.esgl = cpu_to_le32(1<<31);
	} else if (task->num_scatter == 1) {
		u64 dma_addr = sg_dma_address(task->scatter);
		ssp_cmd.addr_low = cpu_to_le32(lower_32_bits(dma_addr));
		ssp_cmd.addr_high = cpu_to_le32(upper_32_bits(dma_addr));
		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
		ssp_cmd.esgl = 0;
	} else if (task->num_scatter == 0) {
		ssp_cmd.addr_low = 0;
		ssp_cmd.addr_high = 0;
		ssp_cmd.len = cpu_to_le32(task->total_xfer_len);
		ssp_cmd.esgl = 0;
	}
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &ssp_cmd,
			sizeof(ssp_cmd), 0);
	return ret;
}

static int pm8001_chip_sata_req(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_ccb_info *ccb)
{
	struct sas_task *task = ccb->task;
	struct domain_device *dev = task->dev;
	struct pm8001_device *pm8001_ha_dev = dev->lldd_dev;
	u32 tag = ccb->ccb_tag;
	int ret;
	struct sata_start_req sata_cmd;
	u32 hdr_tag, ncg_tag = 0;
	u64 phys_addr;
	u32 ATAP = 0x0;
	u32 dir;
	struct inbound_queue_table *circularQ;
	unsigned long flags;
	u32  opc = OPC_INB_SATA_HOST_OPSTART;
	memset(&sata_cmd, 0, sizeof(sata_cmd));
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	if (task->data_dir == DMA_NONE) {
		ATAP = 0x04;  /* no data*/
		pm8001_dbg(pm8001_ha, IO, "no data\n");
	} else if (likely(!task->ata_task.device_control_reg_update)) {
		if (task->ata_task.dma_xfer) {
			ATAP = 0x06; /* DMA */
			pm8001_dbg(pm8001_ha, IO, "DMA\n");
		} else {
			ATAP = 0x05; /* PIO*/
			pm8001_dbg(pm8001_ha, IO, "PIO\n");
		}
		if (task->ata_task.use_ncq &&
			dev->sata_dev.class != ATA_DEV_ATAPI) {
			ATAP = 0x07; /* FPDMA */
			pm8001_dbg(pm8001_ha, IO, "FPDMA\n");
		}
	}
	if (task->ata_task.use_ncq && pm8001_get_ncq_tag(task, &hdr_tag)) {
		task->ata_task.fis.sector_count |= (u8) (hdr_tag << 3);
		ncg_tag = hdr_tag;
	}
	dir = data_dir_flags[task->data_dir] << 8;
	sata_cmd.tag = cpu_to_le32(tag);
	sata_cmd.device_id = cpu_to_le32(pm8001_ha_dev->device_id);
	sata_cmd.data_len = cpu_to_le32(task->total_xfer_len);
	sata_cmd.ncqtag_atap_dir_m =
		cpu_to_le32(((ncg_tag & 0xff)<<16)|((ATAP & 0x3f) << 10) | dir);
	sata_cmd.sata_fis = task->ata_task.fis;
	if (likely(!task->ata_task.device_control_reg_update))
		sata_cmd.sata_fis.flags |= 0x80;/* C=1: update ATA cmd reg */
	sata_cmd.sata_fis.flags &= 0xF0;/* PM_PORT field shall be 0 */
	/* fill in PRD (scatter/gather) table, if any */
	if (task->num_scatter > 1) {
		pm8001_chip_make_sg(task->scatter, ccb->n_elem, ccb->buf_prd);
		phys_addr = ccb->ccb_dma_handle;
		sata_cmd.addr_low = lower_32_bits(phys_addr);
		sata_cmd.addr_high = upper_32_bits(phys_addr);
		sata_cmd.esgl = cpu_to_le32(1 << 31);
	} else if (task->num_scatter == 1) {
		u64 dma_addr = sg_dma_address(task->scatter);
		sata_cmd.addr_low = lower_32_bits(dma_addr);
		sata_cmd.addr_high = upper_32_bits(dma_addr);
		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
		sata_cmd.esgl = 0;
	} else if (task->num_scatter == 0) {
		sata_cmd.addr_low = 0;
		sata_cmd.addr_high = 0;
		sata_cmd.len = cpu_to_le32(task->total_xfer_len);
		sata_cmd.esgl = 0;
	}

	/* Check for read log for failed drive and return */
	if (sata_cmd.sata_fis.command == 0x2f) {
		if (((pm8001_ha_dev->id & NCQ_READ_LOG_FLAG) ||
			(pm8001_ha_dev->id & NCQ_ABORT_ALL_FLAG) ||
			(pm8001_ha_dev->id & NCQ_2ND_RLE_FLAG))) {
			struct task_status_struct *ts;

			pm8001_ha_dev->id &= 0xDFFFFFFF;
			ts = &task->task_status;

			spin_lock_irqsave(&task->task_state_lock, flags);
			ts->resp = SAS_TASK_COMPLETE;
			ts->stat = SAM_STAT_GOOD;
			task->task_state_flags &= ~SAS_TASK_STATE_PENDING;
			task->task_state_flags &= ~SAS_TASK_AT_INITIATOR;
			task->task_state_flags |= SAS_TASK_STATE_DONE;
			if (unlikely((task->task_state_flags &
					SAS_TASK_STATE_ABORTED))) {
				spin_unlock_irqrestore(&task->task_state_lock,
							flags);
				pm8001_dbg(pm8001_ha, FAIL,
					   "task 0x%p resp 0x%x  stat 0x%x but aborted by upper layer\n",
					   task, ts->resp,
					   ts->stat);
				pm8001_ccb_task_free(pm8001_ha, task, ccb, tag);
			} else {
				spin_unlock_irqrestore(&task->task_state_lock,
							flags);
				pm8001_ccb_task_free_done(pm8001_ha, task,
								ccb, tag);
				return 0;
			}
		}
	}

	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sata_cmd,
			sizeof(sata_cmd), 0);
	return ret;
}

/**
 * pm8001_chip_phy_start_req - start phy via PHY_START COMMAND
 * @pm8001_ha: our hba card information.
 * @phy_id: the phy id which we wanted to start up.
 */
static int
pm8001_chip_phy_start_req(struct pm8001_hba_info *pm8001_ha, u8 phy_id)
{
	struct phy_start_req payload;
	struct inbound_queue_table *circularQ;
	int ret;
	u32 tag = 0x01;
	u32 opcode = OPC_INB_PHYSTART;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	memset(&payload, 0, sizeof(payload));
	payload.tag = cpu_to_le32(tag);
	/*
	 ** [0:7]   PHY Identifier
	 ** [8:11]  link rate 1.5G, 3G, 6G
	 ** [12:13] link mode 01b SAS mode; 10b SATA mode; 11b both
	 ** [14]    0b disable spin up hold; 1b enable spin up hold
	 */
	payload.ase_sh_lm_slr_phyid = cpu_to_le32(SPINHOLD_DISABLE |
		LINKMODE_AUTO |	LINKRATE_15 |
		LINKRATE_30 | LINKRATE_60 | phy_id);
	payload.sas_identify.dev_type = SAS_END_DEVICE;
	payload.sas_identify.initiator_bits = SAS_PROTOCOL_ALL;
	memcpy(payload.sas_identify.sas_addr,
		pm8001_ha->sas_addr, SAS_ADDR_SIZE);
	payload.sas_identify.phy_id = phy_id;
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
			sizeof(payload), 0);
	return ret;
}

/**
 * pm8001_chip_phy_stop_req - start phy via PHY_STOP COMMAND
 * @pm8001_ha: our hba card information.
 * @phy_id: the phy id which we wanted to start up.
 */
static int pm8001_chip_phy_stop_req(struct pm8001_hba_info *pm8001_ha,
				    u8 phy_id)
{
	struct phy_stop_req payload;
	struct inbound_queue_table *circularQ;
	int ret;
	u32 tag = 0x01;
	u32 opcode = OPC_INB_PHYSTOP;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	memset(&payload, 0, sizeof(payload));
	payload.tag = cpu_to_le32(tag);
	payload.phy_id = cpu_to_le32(phy_id);
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opcode, &payload,
			sizeof(payload), 0);
	return ret;
}

/*
 * see comments on pm8001_mpi_reg_resp.
 */
static int pm8001_chip_reg_dev_req(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_device *pm8001_dev, u32 flag)
{
	struct reg_dev_req payload;
	u32	opc;
	u32 stp_sspsmp_sata = 0x4;
	struct inbound_queue_table *circularQ;
	u32 linkrate, phy_id;
	int rc, tag = 0xdeadbeef;
	struct pm8001_ccb_info *ccb;
	u8 retryFlag = 0x1;
	u16 firstBurstSize = 0;
	u16 ITNT = 2000;
	struct domain_device *dev = pm8001_dev->sas_device;
	struct domain_device *parent_dev = dev->parent;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];

	memset(&payload, 0, sizeof(payload));
	rc = pm8001_tag_alloc(pm8001_ha, &tag);
	if (rc)
		return rc;
	ccb = &pm8001_ha->ccb_info[tag];
	ccb->device = pm8001_dev;
	ccb->ccb_tag = tag;
	payload.tag = cpu_to_le32(tag);
	if (flag == 1)
		stp_sspsmp_sata = 0x02; /*direct attached sata */
	else {
		if (pm8001_dev->dev_type == SAS_SATA_DEV)
			stp_sspsmp_sata = 0x00; /* stp*/
		else if (pm8001_dev->dev_type == SAS_END_DEVICE ||
			pm8001_dev->dev_type == SAS_EDGE_EXPANDER_DEVICE ||
			pm8001_dev->dev_type == SAS_FANOUT_EXPANDER_DEVICE)
			stp_sspsmp_sata = 0x01; /*ssp or smp*/
	}
	if (parent_dev && dev_is_expander(parent_dev->dev_type))
		phy_id = parent_dev->ex_dev.ex_phy->phy_id;
	else
		phy_id = pm8001_dev->attached_phy;
	opc = OPC_INB_REG_DEV;
	linkrate = (pm8001_dev->sas_device->linkrate < dev->port->linkrate) ?
			pm8001_dev->sas_device->linkrate : dev->port->linkrate;
	payload.phyid_portid =
		cpu_to_le32(((pm8001_dev->sas_device->port->id) & 0x0F) |
		((phy_id & 0x0F) << 4));
	payload.dtype_dlr_retry = cpu_to_le32((retryFlag & 0x01) |
		((linkrate & 0x0F) * 0x1000000) |
		((stp_sspsmp_sata & 0x03) * 0x10000000));
	payload.firstburstsize_ITNexustimeout =
		cpu_to_le32(ITNT | (firstBurstSize * 0x10000));
	memcpy(payload.sas_addr, pm8001_dev->sas_device->sas_addr,
		SAS_ADDR_SIZE);
	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
	return rc;
}

/*
 * see comments on pm8001_mpi_reg_resp.
 */
int pm8001_chip_dereg_dev_req(struct pm8001_hba_info *pm8001_ha,
	u32 device_id)
{
	struct dereg_dev_req payload;
	u32 opc = OPC_INB_DEREG_DEV_HANDLE;
	int ret;
	struct inbound_queue_table *circularQ;

	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	memset(&payload, 0, sizeof(payload));
	payload.tag = cpu_to_le32(1);
	payload.device_id = cpu_to_le32(device_id);
	pm8001_dbg(pm8001_ha, MSG, "unregister device device_id = %d\n",
		   device_id);
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
	return ret;
}

/**
 * pm8001_chip_phy_ctl_req - support the local phy operation
 * @pm8001_ha: our hba card information.
 * @phyId: the phy id which we wanted to operate
 * @phy_op: the phy operation to request
 */
static int pm8001_chip_phy_ctl_req(struct pm8001_hba_info *pm8001_ha,
	u32 phyId, u32 phy_op)
{
	struct local_phy_ctl_req payload;
	struct inbound_queue_table *circularQ;
	int ret;
	u32 opc = OPC_INB_LOCAL_PHY_CONTROL;
	memset(&payload, 0, sizeof(payload));
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	payload.tag = cpu_to_le32(1);
	payload.phyop_phyid =
		cpu_to_le32(((phy_op & 0xff) << 8) | (phyId & 0x0F));
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
	return ret;
}

static u32 pm8001_chip_is_our_interrupt(struct pm8001_hba_info *pm8001_ha)
{
#ifdef PM8001_USE_MSIX
	return 1;
#else
	u32 value;

	value = pm8001_cr32(pm8001_ha, 0, MSGU_ODR);
	if (value)
		return 1;
	return 0;
#endif
}

/**
 * pm8001_chip_isr - PM8001 isr handler.
 * @pm8001_ha: our hba card information.
 * @vec: IRQ number
 */
static irqreturn_t
pm8001_chip_isr(struct pm8001_hba_info *pm8001_ha, u8 vec)
{
	pm8001_chip_interrupt_disable(pm8001_ha, vec);
	pm8001_dbg(pm8001_ha, DEVIO,
		   "irq vec %d, ODMR:0x%x\n",
		   vec, pm8001_cr32(pm8001_ha, 0, 0x30));
	process_oq(pm8001_ha, vec);
	pm8001_chip_interrupt_enable(pm8001_ha, vec);
	return IRQ_HANDLED;
}

static int send_task_abort(struct pm8001_hba_info *pm8001_ha, u32 opc,
	u32 dev_id, u8 flag, u32 task_tag, u32 cmd_tag)
{
	struct task_abort_req task_abort;
	struct inbound_queue_table *circularQ;
	int ret;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	memset(&task_abort, 0, sizeof(task_abort));
	if (ABORT_SINGLE == (flag & ABORT_MASK)) {
		task_abort.abort_all = 0;
		task_abort.device_id = cpu_to_le32(dev_id);
		task_abort.tag_to_abort = cpu_to_le32(task_tag);
		task_abort.tag = cpu_to_le32(cmd_tag);
	} else if (ABORT_ALL == (flag & ABORT_MASK)) {
		task_abort.abort_all = cpu_to_le32(1);
		task_abort.device_id = cpu_to_le32(dev_id);
		task_abort.tag = cpu_to_le32(cmd_tag);
	}
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &task_abort,
			sizeof(task_abort), 0);
	return ret;
}

/*
 * pm8001_chip_abort_task - SAS abort task when error or exception happened.
 */
int pm8001_chip_abort_task(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_device *pm8001_dev, u8 flag, u32 task_tag, u32 cmd_tag)
{
	u32 opc, device_id;
	int rc = TMF_RESP_FUNC_FAILED;
	pm8001_dbg(pm8001_ha, EH, "cmd_tag = %x, abort task tag = 0x%x\n",
		   cmd_tag, task_tag);
	if (pm8001_dev->dev_type == SAS_END_DEVICE)
		opc = OPC_INB_SSP_ABORT;
	else if (pm8001_dev->dev_type == SAS_SATA_DEV)
		opc = OPC_INB_SATA_ABORT;
	else
		opc = OPC_INB_SMP_ABORT;/* SMP */
	device_id = pm8001_dev->device_id;
	rc = send_task_abort(pm8001_ha, opc, device_id, flag,
		task_tag, cmd_tag);
	if (rc != TMF_RESP_FUNC_COMPLETE)
		pm8001_dbg(pm8001_ha, EH, "rc= %d\n", rc);
	return rc;
}

/**
 * pm8001_chip_ssp_tm_req - built the task management command.
 * @pm8001_ha: our hba card information.
 * @ccb: the ccb information.
 * @tmf: task management function.
 */
int pm8001_chip_ssp_tm_req(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_ccb_info *ccb, struct pm8001_tmf_task *tmf)
{
	struct sas_task *task = ccb->task;
	struct domain_device *dev = task->dev;
	struct pm8001_device *pm8001_dev = dev->lldd_dev;
	u32 opc = OPC_INB_SSPINITMSTART;
	struct inbound_queue_table *circularQ;
	struct ssp_ini_tm_start_req sspTMCmd;
	int ret;

	memset(&sspTMCmd, 0, sizeof(sspTMCmd));
	sspTMCmd.device_id = cpu_to_le32(pm8001_dev->device_id);
	sspTMCmd.relate_tag = cpu_to_le32(tmf->tag_of_task_to_be_managed);
	sspTMCmd.tmf = cpu_to_le32(tmf->tmf);
	memcpy(sspTMCmd.lun, task->ssp_task.LUN, 8);
	sspTMCmd.tag = cpu_to_le32(ccb->ccb_tag);
	if (pm8001_ha->chip_id != chip_8001)
		sspTMCmd.ds_ads_m = 0x08;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &sspTMCmd,
			sizeof(sspTMCmd), 0);
	return ret;
}

int pm8001_chip_get_nvmd_req(struct pm8001_hba_info *pm8001_ha,
	void *payload)
{
	u32 opc = OPC_INB_GET_NVMD_DATA;
	u32 nvmd_type;
	int rc;
	u32 tag;
	struct pm8001_ccb_info *ccb;
	struct inbound_queue_table *circularQ;
	struct get_nvm_data_req nvmd_req;
	struct fw_control_ex *fw_control_context;
	struct pm8001_ioctl_payload *ioctl_payload = payload;

	nvmd_type = ioctl_payload->minor_function;
	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
	if (!fw_control_context)
		return -ENOMEM;
	fw_control_context->usrAddr = (u8 *)ioctl_payload->func_specific;
	fw_control_context->len = ioctl_payload->rd_length;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	memset(&nvmd_req, 0, sizeof(nvmd_req));
	rc = pm8001_tag_alloc(pm8001_ha, &tag);
	if (rc) {
		kfree(fw_control_context);
		return rc;
	}
	ccb = &pm8001_ha->ccb_info[tag];
	ccb->ccb_tag = tag;
	ccb->fw_control_context = fw_control_context;
	nvmd_req.tag = cpu_to_le32(tag);

	switch (nvmd_type) {
	case TWI_DEVICE: {
		u32 twi_addr, twi_page_size;
		twi_addr = 0xa8;
		twi_page_size = 2;

		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
			twi_page_size << 8 | TWI_DEVICE);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	}
	case C_SEEPROM: {
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	}
	case VPD_FLASH: {
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	}
	case EXPAN_ROM: {
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	}
	case IOP_RDUMP: {
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | IOP_RDUMP);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->rd_length);
		nvmd_req.vpd_offset = cpu_to_le32(ioctl_payload->offset);
		nvmd_req.resp_addr_hi =
		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	}
	default:
		break;
	}
	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
			sizeof(nvmd_req), 0);
	if (rc) {
		kfree(fw_control_context);
		pm8001_tag_free(pm8001_ha, tag);
	}
	return rc;
}

int pm8001_chip_set_nvmd_req(struct pm8001_hba_info *pm8001_ha,
	void *payload)
{
	u32 opc = OPC_INB_SET_NVMD_DATA;
	u32 nvmd_type;
	int rc;
	u32 tag;
	struct pm8001_ccb_info *ccb;
	struct inbound_queue_table *circularQ;
	struct set_nvm_data_req nvmd_req;
	struct fw_control_ex *fw_control_context;
	struct pm8001_ioctl_payload *ioctl_payload = payload;

	nvmd_type = ioctl_payload->minor_function;
	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
	if (!fw_control_context)
		return -ENOMEM;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	memcpy(pm8001_ha->memoryMap.region[NVMD].virt_ptr,
		&ioctl_payload->func_specific,
		ioctl_payload->wr_length);
	memset(&nvmd_req, 0, sizeof(nvmd_req));
	rc = pm8001_tag_alloc(pm8001_ha, &tag);
	if (rc) {
		kfree(fw_control_context);
		return -EBUSY;
	}
	ccb = &pm8001_ha->ccb_info[tag];
	ccb->fw_control_context = fw_control_context;
	ccb->ccb_tag = tag;
	nvmd_req.tag = cpu_to_le32(tag);
	switch (nvmd_type) {
	case TWI_DEVICE: {
		u32 twi_addr, twi_page_size;
		twi_addr = 0xa8;
		twi_page_size = 2;
		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | twi_addr << 16 |
			twi_page_size << 8 | TWI_DEVICE);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	}
	case C_SEEPROM:
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | C_SEEPROM);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	case VPD_FLASH:
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | VPD_FLASH);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	case EXPAN_ROM:
		nvmd_req.len_ir_vpdd = cpu_to_le32(IPMode | EXPAN_ROM);
		nvmd_req.resp_len = cpu_to_le32(ioctl_payload->wr_length);
		nvmd_req.reserved[0] = cpu_to_le32(0xFEDCBA98);
		nvmd_req.resp_addr_hi =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_hi);
		nvmd_req.resp_addr_lo =
		    cpu_to_le32(pm8001_ha->memoryMap.region[NVMD].phys_addr_lo);
		break;
	default:
		break;
	}
	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &nvmd_req,
			sizeof(nvmd_req), 0);
	if (rc) {
		kfree(fw_control_context);
		pm8001_tag_free(pm8001_ha, tag);
	}
	return rc;
}

/**
 * pm8001_chip_fw_flash_update_build - support the firmware update operation
 * @pm8001_ha: our hba card information.
 * @fw_flash_updata_info: firmware flash update param
 * @tag: Tag to apply to the payload
 */
int
pm8001_chip_fw_flash_update_build(struct pm8001_hba_info *pm8001_ha,
	void *fw_flash_updata_info, u32 tag)
{
	struct fw_flash_Update_req payload;
	struct fw_flash_updata_info *info;
	struct inbound_queue_table *circularQ;
	int ret;
	u32 opc = OPC_INB_FW_FLASH_UPDATE;

	memset(&payload, 0, sizeof(struct fw_flash_Update_req));
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	info = fw_flash_updata_info;
	payload.tag = cpu_to_le32(tag);
	payload.cur_image_len = cpu_to_le32(info->cur_image_len);
	payload.cur_image_offset = cpu_to_le32(info->cur_image_offset);
	payload.total_image_len = cpu_to_le32(info->total_image_len);
	payload.len = info->sgl.im_len.len ;
	payload.sgl_addr_lo =
		cpu_to_le32(lower_32_bits(le64_to_cpu(info->sgl.addr)));
	payload.sgl_addr_hi =
		cpu_to_le32(upper_32_bits(le64_to_cpu(info->sgl.addr)));
	ret = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
	return ret;
}

int
pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
	void *payload)
{
	struct fw_flash_updata_info flash_update_info;
	struct fw_control_info *fw_control;
	struct fw_control_ex *fw_control_context;
	int rc;
	u32 tag;
	struct pm8001_ccb_info *ccb;
	void *buffer = pm8001_ha->memoryMap.region[FW_FLASH].virt_ptr;
	dma_addr_t phys_addr = pm8001_ha->memoryMap.region[FW_FLASH].phys_addr;
	struct pm8001_ioctl_payload *ioctl_payload = payload;

	fw_control_context = kzalloc(sizeof(struct fw_control_ex), GFP_KERNEL);
	if (!fw_control_context)
		return -ENOMEM;
	fw_control = (struct fw_control_info *)&ioctl_payload->func_specific;
	pm8001_dbg(pm8001_ha, DEVIO,
		   "dma fw_control context input length :%x\n",
		   fw_control->len);
	memcpy(buffer, fw_control->buffer, fw_control->len);
	flash_update_info.sgl.addr = cpu_to_le64(phys_addr);
	flash_update_info.sgl.im_len.len = cpu_to_le32(fw_control->len);
	flash_update_info.sgl.im_len.e = 0;
	flash_update_info.cur_image_offset = fw_control->offset;
	flash_update_info.cur_image_len = fw_control->len;
	flash_update_info.total_image_len = fw_control->size;
	fw_control_context->fw_control = fw_control;
	fw_control_context->virtAddr = buffer;
	fw_control_context->phys_addr = phys_addr;
	fw_control_context->len = fw_control->len;
	rc = pm8001_tag_alloc(pm8001_ha, &tag);
	if (rc) {
		kfree(fw_control_context);
		return -EBUSY;
	}
	ccb = &pm8001_ha->ccb_info[tag];
	ccb->fw_control_context = fw_control_context;
	ccb->ccb_tag = tag;
	rc = pm8001_chip_fw_flash_update_build(pm8001_ha, &flash_update_info,
		tag);
	return rc;
}

ssize_t
pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
{
	u32 value, rem, offset = 0, bar = 0;
	u32 index, work_offset, dw_length;
	u32 shift_value, gsm_base, gsm_dump_offset;
	char *direct_data;
	struct Scsi_Host *shost = class_to_shost(cdev);
	struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
	struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;

	direct_data = buf;
	gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;

	/* check max is 1 Mbytes */
	if ((length > 0x100000) || (gsm_dump_offset & 3) ||
		((gsm_dump_offset + length) > 0x1000000))
			return -EINVAL;

	if (pm8001_ha->chip_id == chip_8001)
		bar = 2;
	else
		bar = 1;

	work_offset = gsm_dump_offset & 0xFFFF0000;
	offset = gsm_dump_offset & 0x0000FFFF;
	gsm_dump_offset = work_offset;
	/* adjust length to dword boundary */
	rem = length & 3;
	dw_length = length >> 2;

	for (index = 0; index < dw_length; index++) {
		if ((work_offset + offset) & 0xFFFF0000) {
			if (pm8001_ha->chip_id == chip_8001)
				shift_value = ((gsm_dump_offset + offset) &
						SHIFT_REG_64K_MASK);
			else
				shift_value = (((gsm_dump_offset + offset) &
						SHIFT_REG_64K_MASK) >>
						SHIFT_REG_BIT_SHIFT);

			if (pm8001_ha->chip_id == chip_8001) {
				gsm_base = GSM_BASE;
				if (-1 == pm8001_bar4_shift(pm8001_ha,
						(gsm_base + shift_value)))
					return -EIO;
			} else {
				gsm_base = 0;
				if (-1 == pm80xx_bar4_shift(pm8001_ha,
						(gsm_base + shift_value)))
					return -EIO;
			}
			gsm_dump_offset = (gsm_dump_offset + offset) &
						0xFFFF0000;
			work_offset = 0;
			offset = offset & 0x0000FFFF;
		}
		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
						0x0000FFFF);
		direct_data += sprintf(direct_data, "%08x ", value);
		offset += 4;
	}
	if (rem != 0) {
		value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
						0x0000FFFF);
		/* xfr for non_dw */
		direct_data += sprintf(direct_data, "%08x ", value);
	}
	/* Shift back to BAR4 original address */
	if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
			return -EIO;
	pm8001_ha->fatal_forensic_shift_offset += 1024;

	if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
		pm8001_ha->fatal_forensic_shift_offset = 0;
	return direct_data - buf;
}

int
pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
	struct pm8001_device *pm8001_dev, u32 state)
{
	struct set_dev_state_req payload;
	struct inbound_queue_table *circularQ;
	struct pm8001_ccb_info *ccb;
	int rc;
	u32 tag;
	u32 opc = OPC_INB_SET_DEVICE_STATE;
	memset(&payload, 0, sizeof(payload));
	rc = pm8001_tag_alloc(pm8001_ha, &tag);
	if (rc)
		return -1;
	ccb = &pm8001_ha->ccb_info[tag];
	ccb->ccb_tag = tag;
	ccb->device = pm8001_dev;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	payload.tag = cpu_to_le32(tag);
	payload.device_id = cpu_to_le32(pm8001_dev->device_id);
	payload.nds = cpu_to_le32(state);
	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
	return rc;

}

static int
pm8001_chip_sas_re_initialization(struct pm8001_hba_info *pm8001_ha)
{
	struct sas_re_initialization_req payload;
	struct inbound_queue_table *circularQ;
	struct pm8001_ccb_info *ccb;
	int rc;
	u32 tag;
	u32 opc = OPC_INB_SAS_RE_INITIALIZE;
	memset(&payload, 0, sizeof(payload));
	rc = pm8001_tag_alloc(pm8001_ha, &tag);
	if (rc)
		return -ENOMEM;
	ccb = &pm8001_ha->ccb_info[tag];
	ccb->ccb_tag = tag;
	circularQ = &pm8001_ha->inbnd_q_tbl[0];
	payload.tag = cpu_to_le32(tag);
	payload.SSAHOLT = cpu_to_le32(0xd << 25);
	payload.sata_hol_tmo = cpu_to_le32(80);
	payload.open_reject_cmdretries_data_retries = cpu_to_le32(0xff00ff);
	rc = pm8001_mpi_build_cmd(pm8001_ha, circularQ, opc, &payload,
			sizeof(payload), 0);
	if (rc)
		pm8001_tag_free(pm8001_ha, tag);
	return rc;

}

const struct pm8001_dispatch pm8001_8001_dispatch = {
	.name			= "pmc8001",
	.chip_init		= pm8001_chip_init,
	.chip_soft_rst		= pm8001_chip_soft_rst,
	.chip_rst		= pm8001_hw_chip_rst,
	.chip_iounmap		= pm8001_chip_iounmap,
	.isr			= pm8001_chip_isr,
	.is_our_interrupt	= pm8001_chip_is_our_interrupt,
	.isr_process_oq		= process_oq,
	.interrupt_enable 	= pm8001_chip_interrupt_enable,
	.interrupt_disable	= pm8001_chip_interrupt_disable,
	.make_prd		= pm8001_chip_make_sg,
	.smp_req		= pm8001_chip_smp_req,
	.ssp_io_req		= pm8001_chip_ssp_io_req,
	.sata_req		= pm8001_chip_sata_req,
	.phy_start_req		= pm8001_chip_phy_start_req,
	.phy_stop_req		= pm8001_chip_phy_stop_req,
	.reg_dev_req		= pm8001_chip_reg_dev_req,
	.dereg_dev_req		= pm8001_chip_dereg_dev_req,
	.phy_ctl_req		= pm8001_chip_phy_ctl_req,
	.task_abort		= pm8001_chip_abort_task,
	.ssp_tm_req		= pm8001_chip_ssp_tm_req,
	.get_nvmd_req		= pm8001_chip_get_nvmd_req,
	.set_nvmd_req		= pm8001_chip_set_nvmd_req,
	.fw_flash_update_req	= pm8001_chip_fw_flash_update_req,
	.set_dev_state_req	= pm8001_chip_set_dev_state_req,
	.sas_re_init_req	= pm8001_chip_sas_re_initialization,
};