Differential D29584 Diff 86826 sys/dev/smartpqi/smartpqi_init.c

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sys/dev/smartpqi/smartpqi_init.c

/*-		/*-
* Copyright (c) 2018 Microsemi Corporation.		* Copyright 2016-2021 Microchip Technology, Inc. and/or its subsidiaries.
* All rights reserved.
*		*
* Redistribution and use in source and binary forms, with or without		* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions		* modification, are permitted provided that the following conditions
* are met:		* are met:
* 1. Redistributions of source code must retain the above copyright		* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.		* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright		* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the		* notice, this list of conditions and the following disclaimer in the
Show All 11 Lines
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF		* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.		* SUCH DAMAGE.
*/		*/

/* $FreeBSD$ */		/* $FreeBSD$ */

#include "smartpqi_includes.h"		#include "smartpqi_includes.h"

		/* 5 mins timeout for quiesce */
		#define PQI_QUIESCE_TIMEOUT 300000

/*		/*
* Request the adapter to get PQI capabilities supported.		* Request the adapter to get PQI capabilities supported.
*/		*/
static int pqisrc_report_pqi_capability(pqisrc_softstate_t *softs)		static int
		pqisrc_report_pqi_capability(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

gen_adm_req_iu_t admin_req;		gen_adm_req_iu_t admin_req;
gen_adm_resp_iu_t admin_resp;		gen_adm_resp_iu_t admin_resp;
dma_mem_t pqi_cap_dma_buf;		dma_mem_t pqi_cap_dma_buf;
pqi_dev_cap_t *capability = NULL;		pqi_dev_cap_t *capability = NULL;
pqi_iu_layer_desc_t *iu_layer_desc = NULL;		pqi_iu_layer_desc_t *iu_layer_desc = NULL;

Show All 28 Lines	pqisrc_report_pqi_capability(pqisrc_softstate_t *softs)
ret = pqisrc_submit_admin_req(softs, &admin_req, &admin_resp);		ret = pqisrc_submit_admin_req(softs, &admin_req, &admin_resp);
if( PQI_STATUS_SUCCESS == ret) {		if( PQI_STATUS_SUCCESS == ret) {
memcpy(capability,		memcpy(capability,
pqi_cap_dma_buf.virt_addr,		pqi_cap_dma_buf.virt_addr,
pqi_cap_dma_buf.size);		pqi_cap_dma_buf.size);
} else {		} else {
DBG_ERR("Failed to send admin req report pqi device capability\n");		DBG_ERR("Failed to send admin req report pqi device capability\n");
goto err_admin_req;		goto err_admin_req;

}		}

softs->pqi_dev_cap.max_iqs = capability->max_iqs;		softs->pqi_dev_cap.max_iqs = capability->max_iqs;
softs->pqi_dev_cap.max_iq_elements = capability->max_iq_elements;		softs->pqi_dev_cap.max_iq_elements = capability->max_iq_elements;
softs->pqi_dev_cap.max_iq_elem_len = capability->max_iq_elem_len;		softs->pqi_dev_cap.max_iq_elem_len = capability->max_iq_elem_len;
softs->pqi_dev_cap.min_iq_elem_len = capability->min_iq_elem_len;		softs->pqi_dev_cap.min_iq_elem_len = capability->min_iq_elem_len;
softs->pqi_dev_cap.max_oqs = capability->max_oqs;		softs->pqi_dev_cap.max_oqs = capability->max_oqs;
softs->pqi_dev_cap.max_oq_elements = capability->max_oq_elements;		softs->pqi_dev_cap.max_oq_elements = capability->max_oq_elements;
Show All 12 Lines	pqisrc_report_pqi_capability(pqisrc_softstate_t *softs)
DBG_INIT("softs->pqi_dev_cap.max_oqs: %d\n", softs->pqi_dev_cap.max_oqs);		DBG_INIT("softs->pqi_dev_cap.max_oqs: %d\n", softs->pqi_dev_cap.max_oqs);
DBG_INIT("softs->pqi_dev_cap.max_oq_elements: %d\n", softs->pqi_dev_cap.max_oq_elements);		DBG_INIT("softs->pqi_dev_cap.max_oq_elements: %d\n", softs->pqi_dev_cap.max_oq_elements);
DBG_INIT("softs->pqi_dev_cap.max_oq_elem_len: %d\n", softs->pqi_dev_cap.max_oq_elem_len);		DBG_INIT("softs->pqi_dev_cap.max_oq_elem_len: %d\n", softs->pqi_dev_cap.max_oq_elem_len);
DBG_INIT("softs->pqi_dev_cap.intr_coales_time_granularity: %d\n", softs->pqi_dev_cap.intr_coales_time_granularity);		DBG_INIT("softs->pqi_dev_cap.intr_coales_time_granularity: %d\n", softs->pqi_dev_cap.intr_coales_time_granularity);
DBG_INIT("softs->max_ib_iu_length_per_fw: %d\n", softs->max_ib_iu_length_per_fw);		DBG_INIT("softs->max_ib_iu_length_per_fw: %d\n", softs->max_ib_iu_length_per_fw);
DBG_INIT("softs->ib_spanning_supported: %d\n", softs->ib_spanning_supported);		DBG_INIT("softs->ib_spanning_supported: %d\n", softs->ib_spanning_supported);
DBG_INIT("softs->ob_spanning_supported: %d\n", softs->ob_spanning_supported);		DBG_INIT("softs->ob_spanning_supported: %d\n", softs->ob_spanning_supported);


os_mem_free(softs, (void *)capability,		os_mem_free(softs, (void *)capability,
REPORT_PQI_DEV_CAP_DATA_BUF_SIZE);		REPORT_PQI_DEV_CAP_DATA_BUF_SIZE);
os_dma_mem_free(softs, &pqi_cap_dma_buf);		os_dma_mem_free(softs, &pqi_cap_dma_buf);

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
return ret;		return ret;

err_admin_req:		err_admin_req:
os_dma_mem_free(softs, &pqi_cap_dma_buf);		os_dma_mem_free(softs, &pqi_cap_dma_buf);
err_dma_alloc:		err_dma_alloc:
if (capability)		if (capability)
os_mem_free(softs, (void *)capability,		os_mem_free(softs, (void *)capability,
REPORT_PQI_DEV_CAP_DATA_BUF_SIZE);		REPORT_PQI_DEV_CAP_DATA_BUF_SIZE);
err_out:		err_out:
DBG_FUNC("failed OUT\n");		DBG_FUNC("failed OUT\n");
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;
}		}

/*		/*
* Function used to deallocate the used rcb.		* Function used to deallocate the used rcb.
*/		*/
void pqisrc_free_rcb(pqisrc_softstate_t *softs, int req_count)		void
		pqisrc_free_rcb(pqisrc_softstate_t *softs, int req_count)
{		{

uint32_t num_req;		uint32_t num_req;
size_t size;		size_t size;
int i;		int i;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");
num_req = softs->max_outstanding_io + 1;		num_req = softs->max_outstanding_io + 1;
size = num_req * sizeof(rcb_t);		size = num_req * sizeof(rcb_t);
for (i = 1; i < req_count; i++)		for (i = 1; i < req_count; i++)
os_dma_mem_free(softs, &softs->sg_dma_desc[i]);		os_dma_mem_free(softs, &softs->sg_dma_desc[i]);
os_mem_free(softs, (void *)softs->rcb, size);		os_mem_free(softs, (void *)softs->rcb, size);
softs->rcb = NULL;		softs->rcb = NULL;
DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
}		}


/*		/*
* Allocate memory for rcb and SG descriptors.		* Allocate memory for rcb and SG descriptors.
*/		*/
static int pqisrc_allocate_rcb(pqisrc_softstate_t *softs)		static int
		pqisrc_allocate_rcb(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;
int i = 0;		int i = 0;
uint32_t num_req = 0;		uint32_t num_req = 0;
uint32_t sg_buf_size = 0;		uint32_t sg_buf_size = 0;
uint64_t alloc_size = 0;		uint64_t alloc_size = 0;
rcb_t *rcb = NULL;		rcb_t *rcb = NULL;
rcb_t *prcb = NULL;		rcb_t *prcb = NULL;
DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

/* Set maximum outstanding requests */		/* Set maximum outstanding requests */
/* The valid tag values are from 1, 2, ..., softs->max_outstanding_io		/* The valid tag values are from 1, 2, ..., softs->max_outstanding_io
* The rcb will be accessed by using the tag as index		* The rcb will be accessed by using the tag as index
* * As 0 tag index is not used, we need to allocate one extra.		* As 0 tag index is not used, we need to allocate one extra.
*/		*/
softs->max_outstanding_io = softs->pqi_cap.max_outstanding_io;		softs->max_outstanding_io = softs->pqi_cap.max_outstanding_io;
num_req = softs->max_outstanding_io + 1;		num_req = softs->max_outstanding_io + 1;
DBG_INIT("Max Outstanding IO reset to %d\n", num_req);		DBG_INIT("Max Outstanding IO reset to %d\n", num_req);

alloc_size = num_req * sizeof(rcb_t);		alloc_size = num_req * sizeof(rcb_t);

/* Allocate Non DMA memory */		/* Allocate Non DMA memory */
Show All 37 Lines	err_out:
DBG_FUNC("failed OUT\n");		DBG_FUNC("failed OUT\n");
return ret;		return ret;
}		}

/*		/*
* Function used to decide the operational queue configuration params		* Function used to decide the operational queue configuration params
* - no of ibq/obq, shared/non-shared interrupt resource, IU spanning support		* - no of ibq/obq, shared/non-shared interrupt resource, IU spanning support
*/		*/
void pqisrc_decide_opq_config(pqisrc_softstate_t *softs)		void
		pqisrc_decide_opq_config(pqisrc_softstate_t *softs)
{		{
uint16_t total_iq_elements;		uint16_t total_iq_elements;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

DBG_INIT("softs->intr_count : %d softs->num_cpus_online : %d",		DBG_INIT("softs->intr_count : %d softs->num_cpus_online : %d",
softs->intr_count, softs->num_cpus_online);		softs->intr_count, softs->num_cpus_online);

if (softs->intr_count == 1 \|\| softs->num_cpus_online == 1) {		if (softs->intr_count == 1 \|\| softs->num_cpus_online == 1) {
/* Share the event and Operational queue. */		/* Share the event and Operational queue. */
softs->num_op_obq = 1;		softs->num_op_obq = 1;
softs->share_opq_and_eventq = true;		softs->share_opq_and_eventq = true;
}		}
else {		else {
/* Note : One OBQ (OBQ0) reserved for event queue */		/* Note : One OBQ (OBQ0) reserved for event queue */
softs->num_op_obq = MIN(softs->num_cpus_online,		softs->num_op_obq = MIN(softs->num_cpus_online,
softs->intr_count) - 1;		softs->intr_count) - 1;
softs->num_op_obq = softs->intr_count - 1;
softs->share_opq_and_eventq = false;		softs->share_opq_and_eventq = false;
}		}
		/* If the available interrupt count is more than one,
/*		we dont need to share the interrupt for IO and event queue */
* softs->num_cpus_online is set as number of physical CPUs,
* So we can have more queues/interrupts .
*/
if (softs->intr_count > 1)		if (softs->intr_count > 1)
softs->share_opq_and_eventq = false;		softs->share_opq_and_eventq = false;

DBG_INIT("softs->num_op_obq : %d\n",softs->num_op_obq);		DBG_INIT("softs->num_op_obq : %d\n",softs->num_op_obq);

softs->num_op_raid_ibq = softs->num_op_obq;		softs->num_op_raid_ibq = softs->num_op_obq;
softs->num_op_aio_ibq = softs->num_op_raid_ibq;		softs->num_op_aio_ibq = softs->num_op_raid_ibq;
softs->ibq_elem_size = softs->pqi_dev_cap.max_iq_elem_len * 16;		softs->ibq_elem_size = softs->pqi_dev_cap.max_iq_elem_len * 16;
softs->obq_elem_size = softs->pqi_dev_cap.max_oq_elem_len * 16;		softs->obq_elem_size = softs->pqi_dev_cap.max_oq_elem_len * 16;
if (softs->max_ib_iu_length_per_fw == 256 &&		if (softs->max_ib_iu_length_per_fw == 256 &&
softs->ob_spanning_supported) {		softs->ob_spanning_supported) {
/* older f/w that doesn't actually support spanning. */		/* older f/w that doesn't actually support spanning. */
softs->max_ib_iu_length = softs->ibq_elem_size;		softs->max_ib_iu_length = softs->ibq_elem_size;
} else {		} else {
/* max. inbound IU length is an multiple of our inbound element size. */		/* max. inbound IU length is an multiple of our inbound element size. */
softs->max_ib_iu_length =		softs->max_ib_iu_length =
(softs->max_ib_iu_length_per_fw / softs->ibq_elem_size) *		(softs->max_ib_iu_length_per_fw / softs->ibq_elem_size) *
softs->ibq_elem_size;		softs->ibq_elem_size;

}		}
/* If Max. Outstanding IO came with Max. Spanning element count then,		/* If Max. Outstanding IO came with Max. Spanning element count then,
needed elements per IO are multiplication of		needed elements per IO are multiplication of
Max.Outstanding IO and Max.Spanning element */		Max.Outstanding IO and Max.Spanning element */
total_iq_elements = (softs->max_outstanding_io *		total_iq_elements = (softs->max_outstanding_io *
(softs->max_ib_iu_length / softs->ibq_elem_size));		(softs->max_ib_iu_length / softs->ibq_elem_size));

softs->num_elem_per_op_ibq = total_iq_elements / softs->num_op_raid_ibq;		softs->num_elem_per_op_ibq = total_iq_elements / softs->num_op_raid_ibq;
softs->num_elem_per_op_ibq = MIN(softs->num_elem_per_op_ibq,		softs->num_elem_per_op_ibq = MIN(softs->num_elem_per_op_ibq,
softs->pqi_dev_cap.max_iq_elements);		softs->pqi_dev_cap.max_iq_elements);

softs->num_elem_per_op_obq = softs->max_outstanding_io / softs->num_op_obq;		softs->num_elem_per_op_obq = softs->max_outstanding_io / softs->num_op_obq;
softs->num_elem_per_op_obq = MIN(softs->num_elem_per_op_obq,		softs->num_elem_per_op_obq = MIN(softs->num_elem_per_op_obq,
softs->pqi_dev_cap.max_oq_elements);		softs->pqi_dev_cap.max_oq_elements);

softs->max_sg_per_iu = ((softs->max_ib_iu_length -		softs->max_sg_per_iu = ((softs->max_ib_iu_length -
softs->ibq_elem_size) /		softs->ibq_elem_size) /
sizeof(sgt_t)) +		sizeof(sgt_t)) +
MAX_EMBEDDED_SG_IN_FIRST_IU;		MAX_EMBEDDED_SG_IN_FIRST_IU;

DBG_INIT("softs->max_ib_iu_length: %d\n", softs->max_ib_iu_length);		DBG_INIT("softs->max_ib_iu_length: %d\n", softs->max_ib_iu_length);
DBG_INIT("softs->num_elem_per_op_ibq: %d\n", softs->num_elem_per_op_ibq);		DBG_INIT("softs->num_elem_per_op_ibq: %d\n", softs->num_elem_per_op_ibq);
DBG_INIT("softs->num_elem_per_op_obq: %d\n", softs->num_elem_per_op_obq);		DBG_INIT("softs->num_elem_per_op_obq: %d\n", softs->num_elem_per_op_obq);
DBG_INIT("softs->max_sg_per_iu: %d\n", softs->max_sg_per_iu);		DBG_INIT("softs->max_sg_per_iu: %d\n", softs->max_sg_per_iu);

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
}		}

/*		/*
* Configure the operational queue parameters.		* Configure the operational queue parameters.
*/		*/
int pqisrc_configure_op_queues(pqisrc_softstate_t *softs)		int
		pqisrc_configure_op_queues(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;

/* Get the PQI capability,		/* Get the PQI capability,
REPORT PQI DEVICE CAPABILITY request */		REPORT PQI DEVICE CAPABILITY request */
ret = pqisrc_report_pqi_capability(softs);		ret = pqisrc_report_pqi_capability(softs);
if (ret) {		if (ret) {
DBG_ERR("Failed to send report pqi dev capability request : %d\n",		DBG_ERR("Failed to send report pqi dev capability request : %d\n",
ret);		ret);
goto err_out;		goto err_out;
}		}

/* Reserve required no of slots for internal requests */		/* Reserve required no of slots for internal requests */
softs->max_io_for_scsi_ml = softs->max_outstanding_io - PQI_RESERVED_IO_SLOTS_CNT;		softs->max_io_for_scsi_ml = softs->max_outstanding_io - PQI_RESERVED_IO_SLOTS_CNT;

/* Decide the Op queue configuration */		/* Decide the Op queue configuration */
pqisrc_decide_opq_config(softs);		pqisrc_decide_opq_config(softs);

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
return ret;		return ret;

err_out:		err_out:
DBG_FUNC("OUT failed\n");		DBG_FUNC("OUT failed\n");
return ret;		return ret;
}		}

/*		/*
* Validate the PQI mode of adapter.		* Validate the PQI mode of adapter.
*/		*/
int pqisrc_check_pqimode(pqisrc_softstate_t *softs)		int
		pqisrc_check_pqimode(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_FAILURE;		int ret = PQI_STATUS_FAILURE;
int tmo = 0;		int tmo = 0;
uint64_t signature = 0;		uint64_t signature = 0;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

/* Check the PQI device signature */		/* Check the PQI device signature */
tmo = PQISRC_PQIMODE_READY_TIMEOUT;		tmo = PQISRC_PQIMODE_READY_TIMEOUT;
do {		do {
signature = LE_64(PCI_MEM_GET64(softs, &softs->pqi_reg->signature, PQI_SIGNATURE));		signature = LE_64(PCI_MEM_GET64(softs, &softs->pqi_reg->signature, PQI_SIGNATURE));

if (memcmp(&signature, PQISRC_PQI_DEVICE_SIGNATURE,		if (memcmp(&signature, PQISRC_PQI_DEVICE_SIGNATURE,
sizeof(uint64_t)) == 0) {		sizeof(uint64_t)) == 0) {
ret = PQI_STATUS_SUCCESS;		ret = PQI_STATUS_SUCCESS;
break;		break;
}		}
OS_SLEEP(PQISRC_MODE_READY_POLL_INTERVAL);		OS_SLEEP(PQISRC_MODE_READY_POLL_INTERVAL);
} while (tmo--);		} while (tmo--);

Show All 10 Lines	pqisrc_check_pqimode(pqisrc_softstate_t *softs)
COND_WAIT((PCI_MEM_GET64(softs, &softs->pqi_reg->admin_q_config,		COND_WAIT((PCI_MEM_GET64(softs, &softs->pqi_reg->admin_q_config,
PQI_ADMINQ_CONFIG) == PQI_ADMIN_QUEUE_CONF_FUNC_STATUS_IDLE), tmo);		PQI_ADMINQ_CONFIG) == PQI_ADMIN_QUEUE_CONF_FUNC_STATUS_IDLE), tmo);
if (!tmo) {		if (!tmo) {
DBG_ERR("PQI device is not in IDLE state\n");		DBG_ERR("PQI device is not in IDLE state\n");
ret = PQI_STATUS_TIMEOUT;		ret = PQI_STATUS_TIMEOUT;
goto err_out;		goto err_out;
}		}


tmo = PQISRC_PQIMODE_READY_TIMEOUT;		tmo = PQISRC_PQIMODE_READY_TIMEOUT;
/* Check the PQI device status register */		/* Check the PQI device status register */
COND_WAIT(LE_32(PCI_MEM_GET32(softs, &softs->pqi_reg->pqi_dev_status, PQI_DEV_STATUS)) &		COND_WAIT(LE_32(PCI_MEM_GET32(softs, &softs->pqi_reg->pqi_dev_status, PQI_DEV_STATUS)) &
PQI_DEV_STATE_AT_INIT, tmo);		PQI_DEV_STATE_AT_INIT, tmo);
if (!tmo) {		if (!tmo) {
DBG_ERR("PQI Registers are not ready\n");		DBG_ERR("PQI Registers are not ready\n");
ret = PQI_STATUS_TIMEOUT;		ret = PQI_STATUS_TIMEOUT;
goto err_out;		goto err_out;
}		}

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
return ret;		return ret;
err_out:		err_out:
DBG_FUNC("OUT failed\n");		DBG_FUNC("OUT failed\n");
return ret;		return ret;
}		}

		/* PQI Feature processing */
		static int
		pqisrc_config_table_update(struct pqisrc_softstate *softs,
		uint16_t first_section, uint16_t last_section)
		{
		pqi_vendor_general_request_t request;
		int ret = PQI_STATUS_FAILURE;

		memset(&request, 0, sizeof(request));

		request.header.iu_type = PQI_REQUEST_IU_VENDOR_GENERAL;
		request.header.iu_length = sizeof(request) - PQI_REQUEST_HEADER_LENGTH;
		request.function_code = PQI_VENDOR_GENERAL_CONFIG_TABLE_UPDATE;
		request.data.config_table_update.first_section = first_section;
		request.data.config_table_update.last_section = last_section;

		ret = pqisrc_build_send_vendor_request(softs, &request, NULL);

		if (ret != PQI_STATUS_SUCCESS) {
		DBG_ERR("Failed to submit vendor general request IU, Ret status: %d\n", ret);
		return PQI_STATUS_FAILURE;
		}

		return PQI_STATUS_SUCCESS;
		}

		static inline
		boolean_t pqi_is_firmware_feature_supported(
		struct pqi_conf_table_firmware_features *firmware_feature_list,
		unsigned int bit_position)
		{
		unsigned int byte_index;

		byte_index = bit_position / BITS_PER_BYTE;

		if (byte_index >= firmware_feature_list->num_elements)
		return false;

		return firmware_feature_list->features_supported[byte_index] &
		(1 << (bit_position % BITS_PER_BYTE)) ? true : false;
		}

		static inline
		boolean_t pqi_is_firmware_feature_enabled(
		struct pqi_conf_table_firmware_features *firmware_feature_list,
		uint8_t *firmware_features_addr, unsigned int bit_position)
		{
		unsigned int byte_index;
		uint8_t *feature_enabled_addr;

		byte_index = (bit_position / BITS_PER_BYTE) +
		(firmware_feature_list->num_elements * 2);

		feature_enabled_addr = firmware_features_addr +
		offsetof(struct pqi_conf_table_firmware_features,
		features_supported) + byte_index;

		return *feature_enabled_addr &
		(1 << (bit_position % BITS_PER_BYTE)) ? true : false;
		}

		static inline void
		pqi_request_firmware_feature(
		struct pqi_conf_table_firmware_features *firmware_feature_list,
		unsigned int bit_position)
		{
		unsigned int byte_index;

		byte_index = (bit_position / BITS_PER_BYTE) +
		firmware_feature_list->num_elements;

		firmware_feature_list->features_supported[byte_index] \|=
		(1 << (bit_position % BITS_PER_BYTE));
		}

		/* Update PQI config table firmware features section and inform the firmware */
		static int
		pqisrc_set_host_requested_firmware_feature(pqisrc_softstate_t *softs,
		struct pqi_conf_table_firmware_features *firmware_feature_list)
		{
		uint8_t *request_feature_addr;
		void *request_feature_abs_addr;

		request_feature_addr = firmware_feature_list->features_supported +
		firmware_feature_list->num_elements;
		request_feature_abs_addr = softs->fw_features_section_abs_addr +
		(request_feature_addr - (uint8_t*)firmware_feature_list);

		os_io_memcpy(request_feature_abs_addr, request_feature_addr,
		firmware_feature_list->num_elements);

		return pqisrc_config_table_update(softs,
		PQI_CONF_TABLE_SECTION_FIRMWARE_FEATURES,
		PQI_CONF_TABLE_SECTION_FIRMWARE_FEATURES);
		}

		/* Check firmware has enabled the feature specified in the respective bit position. */
		inline boolean_t
		pqisrc_is_firmware_feature_enabled(pqisrc_softstate_t *softs,
		struct pqi_conf_table_firmware_features *firmware_feature_list, uint16_t bit_position)
		{
		uint16_t byte_index;
		uint8_t *features_enabled_abs_addr;

		byte_index = (bit_position / BITS_PER_BYTE) +
		(firmware_feature_list->num_elements * 2);

		features_enabled_abs_addr = softs->fw_features_section_abs_addr +
		offsetof(struct pqi_conf_table_firmware_features,features_supported) + byte_index;

		return *features_enabled_abs_addr &
		(1 << (bit_position % BITS_PER_BYTE)) ? true : false;
		}

		static void
		pqi_firmware_feature_status(struct pqisrc_softstate *softs,
		struct pqi_firmware_feature *firmware_feature)
		{
		switch(firmware_feature->feature_bit) {
		case PQI_FIRMWARE_FEATURE_OFA:
		break;
		case PQI_FIRMWARE_FEATURE_TIMEOUT_IN_RAID_IU_SUPPORT:
		softs->timeout_in_passthrough = true;
		break;
		case PQI_FIRMWARE_FEATURE_TIMEOUT_IN_TMF_IU_SUPPORT:
		softs->timeout_in_tmf = true;
		break;
		default:
		DBG_NOTE("Nothing to do \n");
		}
		}

		/* Firmware features supported by the driver */
		static struct
		pqi_firmware_feature pqi_firmware_features[] = {
		{
		.feature_name = "Support timeout for pass-through commands",
		.feature_bit = PQI_FIRMWARE_FEATURE_TIMEOUT_IN_RAID_IU_SUPPORT,
		.feature_status = pqi_firmware_feature_status,
		},
		{
		.feature_name = "Support timeout for LUN Reset TMF",
		.feature_bit = PQI_FIRMWARE_FEATURE_TIMEOUT_IN_TMF_IU_SUPPORT,
		.feature_status = pqi_firmware_feature_status,
		}
		};

		static void
		pqisrc_process_firmware_features(pqisrc_softstate_t *softs)
		{
		int rc;
		struct pqi_conf_table_firmware_features *firmware_feature_list;
		unsigned int i;
		unsigned int num_features_requested;

		firmware_feature_list = (struct pqi_conf_table_firmware_features*)
		softs->fw_features_section_abs_addr;

		/* Check features and request those supported by firmware and driver.*/
		for (i = 0, num_features_requested = 0;
		i < ARRAY_SIZE(pqi_firmware_features); i++) {
		/* Firmware support it ? */
		if (pqi_is_firmware_feature_supported(firmware_feature_list,
		pqi_firmware_features[i].feature_bit)) {
		pqi_request_firmware_feature(firmware_feature_list,
		pqi_firmware_features[i].feature_bit);
		pqi_firmware_features[i].supported = true;
		num_features_requested++;
		DBG_NOTE("%s supported by driver, requesting firmware to enable it\n",
		pqi_firmware_features[i].feature_name);
		} else {
		DBG_NOTE("%s supported by driver, but not by current firmware\n",
		pqi_firmware_features[i].feature_name);
		}
		}
		if (num_features_requested == 0)
		return;

		rc = pqisrc_set_host_requested_firmware_feature(softs, firmware_feature_list);
		if (rc) {
		DBG_ERR("Failed to update pqi config table\n");
		return;
		}

		for (i = 0; i < ARRAY_SIZE(pqi_firmware_features); i++) {
		if (pqi_is_firmware_feature_enabled(firmware_feature_list,
		softs->fw_features_section_abs_addr, pqi_firmware_features[i].feature_bit)) {
		pqi_firmware_features[i].enabled = true;
		DBG_NOTE("Firmware feature %s enabled \n",pqi_firmware_features[i].feature_name);
		if(pqi_firmware_features[i].feature_status)
		pqi_firmware_features[i].feature_status(softs, &(pqi_firmware_features[i]));
		}
		}
		}

/*		/*
* Get the PQI configuration table parameters.		* Get the PQI configuration table parameters.
* Currently using for heart-beat counter scratch-pad register.		* Currently using for heart-beat counter scratch-pad register.
*/		*/
int pqisrc_process_config_table(pqisrc_softstate_t *softs)		int
		pqisrc_process_config_table(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_FAILURE;		int ret = PQI_STATUS_FAILURE;
uint32_t config_table_size;		uint32_t config_table_size;
uint32_t section_off;		uint32_t section_off;
uint8_t *config_table_abs_addr;		uint8_t *config_table_abs_addr;
struct pqi_conf_table *conf_table;		struct pqi_conf_table *conf_table;
struct pqi_conf_table_section_header *section_hdr;		struct pqi_conf_table_section_header *section_hdr;

config_table_size = softs->pqi_cap.conf_tab_sz;		config_table_size = softs->pqi_cap.conf_tab_sz;

if (config_table_size < sizeof(*conf_table) \|\|		if (config_table_size < sizeof(*conf_table) \|\|
config_table_size > PQI_CONF_TABLE_MAX_LEN) {		config_table_size > PQI_CONF_TABLE_MAX_LEN) {
DBG_ERR("Invalid PQI conf table length of %u\n",		DBG_ERR("Invalid PQI conf table length of %u\n",
config_table_size);		config_table_size);
return ret;		return ret;
}		}

conf_table = os_mem_alloc(softs, config_table_size);		conf_table = os_mem_alloc(softs, config_table_size);
if (!conf_table) {		if (!conf_table) {
DBG_ERR("Failed to allocate memory for PQI conf table\n");		DBG_ERR("Failed to allocate memory for PQI conf table\n");
return ret;		return ret;
}		}

		if (config_table_size < sizeof(conf_table) \|\|
		config_table_size > PQI_CONF_TABLE_MAX_LEN) {
		DBG_ERR("Invalid PQI conf table length of %u\n",
		config_table_size);
		goto out;
		}

config_table_abs_addr = (uint8_t *)(softs->pci_mem_base_vaddr +		config_table_abs_addr = (uint8_t *)(softs->pci_mem_base_vaddr +
softs->pqi_cap.conf_tab_off);		softs->pqi_cap.conf_tab_off);

PCI_MEM_GET_BUF(softs, config_table_abs_addr,		PCI_MEM_GET_BUF(softs, config_table_abs_addr,
softs->pqi_cap.conf_tab_off,		softs->pqi_cap.conf_tab_off,
(uint8_t*)conf_table, config_table_size);		(uint8_t*)conf_table, config_table_size);


if (memcmp(conf_table->sign, PQI_CONF_TABLE_SIGNATURE,		if (memcmp(conf_table->sign, PQI_CONF_TABLE_SIGNATURE,
sizeof(conf_table->sign)) != 0) {		sizeof(conf_table->sign)) != 0) {
DBG_ERR("Invalid PQI config signature\n");		DBG_ERR("Invalid PQI config signature\n");
goto out;		goto out;
}		}

section_off = LE_32(conf_table->first_section_off);		section_off = LE_32(conf_table->first_section_off);

while (section_off) {		while (section_off) {

if (section_off+ sizeof(*section_hdr) >= config_table_size) {		if (section_off+ sizeof(*section_hdr) >= config_table_size) {
DBG_ERR("PQI config table section offset (%u) beyond \		DBG_INFO("Reached end of PQI config table. Breaking off.\n");
end of config table (config table length: %u)\n",
section_off, config_table_size);
break;		break;
}		}

section_hdr = (struct pqi_conf_table_section_header )((uint8_t )conf_table + section_off);		section_hdr = (struct pqi_conf_table_section_header )((uint8_t )conf_table + section_off);

switch (LE_16(section_hdr->section_id)) {		switch (LE_16(section_hdr->section_id)) {
case PQI_CONF_TABLE_SECTION_GENERAL_INFO:		case PQI_CONF_TABLE_SECTION_GENERAL_INFO:
case PQI_CONF_TABLE_SECTION_FIRMWARE_FEATURES:
case PQI_CONF_TABLE_SECTION_FIRMWARE_ERRATA:		case PQI_CONF_TABLE_SECTION_FIRMWARE_ERRATA:
case PQI_CONF_TABLE_SECTION_DEBUG:		case PQI_CONF_TABLE_SECTION_DEBUG:
break;		break;
		case PQI_CONF_TABLE_SECTION_FIRMWARE_FEATURES:
		softs->fw_features_section_off = softs->pqi_cap.conf_tab_off + section_off;
		softs->fw_features_section_abs_addr = softs->pci_mem_base_vaddr + softs->fw_features_section_off;
		pqisrc_process_firmware_features(softs);
		break;
case PQI_CONF_TABLE_SECTION_HEARTBEAT:		case PQI_CONF_TABLE_SECTION_HEARTBEAT:
softs->heartbeat_counter_off = softs->pqi_cap.conf_tab_off +		softs->heartbeat_counter_off = softs->pqi_cap.conf_tab_off +
section_off +		section_off +
offsetof(struct pqi_conf_table_heartbeat,		offsetof(struct pqi_conf_table_heartbeat,
heartbeat_counter);		heartbeat_counter);
softs->heartbeat_counter_abs_addr = (uint64_t *)(softs->pci_mem_base_vaddr +		softs->heartbeat_counter_abs_addr = (uint64_t *)(softs->pci_mem_base_vaddr +
softs->heartbeat_counter_off);		softs->heartbeat_counter_off);
ret = PQI_STATUS_SUCCESS;		ret = PQI_STATUS_SUCCESS;
break;		break;
default:		default:
DBG_INFO("unrecognized PQI config table section ID: 0x%x\n",		DBG_INFO("unrecognized PQI config table section ID: 0x%x\n",
LE_16(section_hdr->section_id));		LE_16(section_hdr->section_id));
break;		break;
}		}
section_off = LE_16(section_hdr->next_section_off);		section_off = LE_16(section_hdr->next_section_off);
}		}
out:		out:
os_mem_free(softs, (void *)conf_table,config_table_size);		os_mem_free(softs, (void *)conf_table,config_table_size);
return ret;		return ret;
}		}

/* Wait for PQI reset completion for the adapter*/		/* Wait for PQI reset completion for the adapter*/
int pqisrc_wait_for_pqi_reset_completion(pqisrc_softstate_t *softs)		int
		pqisrc_wait_for_pqi_reset_completion(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;
pqi_reset_reg_t reset_reg;		pqi_reset_reg_t reset_reg;
int pqi_reset_timeout = 0;		int pqi_reset_timeout = 0;
uint64_t val = 0;		uint64_t val = 0;
uint32_t max_timeout = 0;		uint32_t max_timeout = 0;

val = PCI_MEM_GET64(softs, &softs->pqi_reg->pqi_dev_adminq_cap, PQI_ADMINQ_CAP);		val = PCI_MEM_GET64(softs, &softs->pqi_reg->pqi_dev_adminq_cap, PQI_ADMINQ_CAP);

max_timeout = (val & 0xFFFF00000000) >> 32;		max_timeout = (val & 0xFFFF00000000) >> 32;

DBG_INIT("max_timeout for PQI reset completion in 100 msec units = %u\n", max_timeout);		DBG_INIT("max_timeout for PQI reset completion in 100 msec units = %u\n", max_timeout);

while(1) {		while(1) {
if (pqi_reset_timeout++ == max_timeout) {		if (pqi_reset_timeout++ == max_timeout) {
return PQI_STATUS_TIMEOUT;		return PQI_STATUS_TIMEOUT;
}		}
OS_SLEEP(PQI_RESET_POLL_INTERVAL);/* 100 msec */		OS_SLEEP(PQI_RESET_POLL_INTERVAL);/* 100 msec */
reset_reg.all_bits = PCI_MEM_GET32(softs,		reset_reg.all_bits = PCI_MEM_GET32(softs,
&softs->pqi_reg->dev_reset, PQI_DEV_RESET);		&softs->pqi_reg->dev_reset, PQI_DEV_RESET);
if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)		if (reset_reg.bits.reset_action == PQI_RESET_ACTION_COMPLETED)
break;		break;
}		}

return ret;		return ret;
}		}

/*		/*
* Function used to perform PQI hard reset.		* Function used to perform PQI hard reset.
*/		*/
int pqi_reset(pqisrc_softstate_t *softs)		int
		pqi_reset(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;
uint32_t val = 0;		uint32_t val = 0;
pqi_reset_reg_t pqi_reset_reg;		pqi_reset_reg_t pqi_reset_reg;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

if (true == softs->ctrl_in_pqi_mode) {		if (true == softs->ctrl_in_pqi_mode) {

if (softs->pqi_reset_quiesce_allowed) {		if (softs->pqi_reset_quiesce_allowed) {
val = PCI_MEM_GET32(softs, &softs->ioa_reg->host_to_ioa_db,		val = PCI_MEM_GET32(softs, &softs->ioa_reg->host_to_ioa_db,
LEGACY_SIS_IDBR);		LEGACY_SIS_IDBR);
val \|= SIS_PQI_RESET_QUIESCE;		val \|= SIS_PQI_RESET_QUIESCE;
PCI_MEM_PUT32(softs, &softs->ioa_reg->host_to_ioa_db,		PCI_MEM_PUT32(softs, &softs->ioa_reg->host_to_ioa_db,
LEGACY_SIS_IDBR, LE_32(val));		LEGACY_SIS_IDBR, LE_32(val));
ret = pqisrc_sis_wait_for_db_bit_to_clear(softs, SIS_PQI_RESET_QUIESCE);		ret = pqisrc_sis_wait_for_db_bit_to_clear(softs, SIS_PQI_RESET_QUIESCE);
Show All 19 Lines	pqi_reset(pqisrc_softstate_t *softs)
softs->ctrl_in_pqi_mode = false;		softs->ctrl_in_pqi_mode = false;
DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
return ret;		return ret;
}		}

/*		/*
* Initialize the adapter with supported PQI configuration.		* Initialize the adapter with supported PQI configuration.
*/		*/
int pqisrc_pqi_init(pqisrc_softstate_t *softs)		int
		pqisrc_pqi_init(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

/* Check the PQI signature */		/* Check the PQI signature */
ret = pqisrc_check_pqimode(softs);		ret = pqisrc_check_pqimode(softs);
if(ret) {		if(ret) {
DBG_ERR("failed to switch to pqi\n");		DBG_ERR("failed to switch to pqi\n");
goto err_out;		goto err_out;
}		}

PQI_SAVE_CTRL_MODE(softs, CTRL_PQI_MODE);		PQI_SAVE_CTRL_MODE(softs, CTRL_PQI_MODE);
softs->ctrl_in_pqi_mode = true;		softs->ctrl_in_pqi_mode = true;

/* Get the No. of Online CPUs,NUMA/Processor config from OS */		/* Get the No. of Online CPUs,NUMA/Processor config from OS */
ret = os_get_processor_config(softs);		ret = os_get_processor_config(softs);
if (ret) {		if (ret) {
DBG_ERR("Failed to get processor config from OS %d\n",		DBG_ERR("Failed to get processor config from OS %d\n",
ret);		ret);
goto err_out;		goto err_out;
}		}

softs->intr_type = INTR_TYPE_NONE;		softs->intr_type = INTR_TYPE_NONE;

/* Get the interrupt count, type, priority available from OS */		/* Get the interrupt count, type, priority available from OS */
ret = os_get_intr_config(softs);		ret = os_get_intr_config(softs);
if (ret) {		if (ret) {
DBG_ERR("Failed to get interrupt config from OS %d\n",		DBG_ERR("Failed to get interrupt config from OS %d\n",
ret);		ret);
goto err_out;		goto err_out;
}		}

/*Enable/Set Legacy INTx Interrupt mask clear pqi register,		/*Enable/Set Legacy INTx Interrupt mask clear pqi register,
*if allocated interrupt is legacy type.		*if allocated interrupt is legacy type.
*/		*/
if (INTR_TYPE_FIXED == softs->intr_type) {		if (INTR_TYPE_FIXED == softs->intr_type) {
pqisrc_configure_legacy_intx(softs, true);		pqisrc_configure_legacy_intx(softs, true);
sis_enable_intx(softs);		sis_enable_intx(softs);
}		}

/* Create Admin Queue pair*/		/* Create Admin Queue pair*/
ret = pqisrc_create_admin_queue(softs);		ret = pqisrc_create_admin_queue(softs);
if(ret) {		if(ret) {
DBG_ERR("Failed to configure admin queue\n");		DBG_ERR("Failed to configure admin queue\n");
goto err_admin_queue;		goto err_admin_queue;
}		}

/* For creating event and IO operational queues we have to submit		/* For creating event and IO operational queues we have to submit
admin IU requests.So Allocate resources for submitting IUs */		admin IU requests.So Allocate resources for submitting IUs */

/* Allocate the request container block (rcb) */		/* Allocate the request container block (rcb) */
ret = pqisrc_allocate_rcb(softs);		ret = pqisrc_allocate_rcb(softs);
if (ret == PQI_STATUS_FAILURE) {		if (ret == PQI_STATUS_FAILURE) {
DBG_ERR("Failed to allocate rcb \n");		DBG_ERR("Failed to allocate rcb \n");
goto err_rcb;		goto err_rcb;
}		}

/* Allocate & initialize request id queue */		/* Allocate & initialize request id queue */
Show All 23 Lines	pqisrc_pqi_init(pqisrc_softstate_t *softs)

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
return ret;		return ret;

err_create_opq:		err_create_opq:
err_config_opq:		err_config_opq:
pqisrc_destroy_taglist(softs,&softs->taglist);		pqisrc_destroy_taglist(softs,&softs->taglist);
err_taglist:		err_taglist:
pqisrc_free_rcb(softs, softs->max_outstanding_io + 1);		pqisrc_free_rcb(softs, softs->max_outstanding_io + 1);
err_rcb:		err_rcb:
pqisrc_destroy_admin_queue(softs);		pqisrc_destroy_admin_queue(softs);
err_admin_queue:		err_admin_queue:
os_free_intr_config(softs);		os_free_intr_config(softs);
err_out:		err_out:
DBG_FUNC("OUT failed\n");		DBG_FUNC("OUT failed\n");
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;
}		}

/* */		int
int pqisrc_force_sis(pqisrc_softstate_t *softs)		pqisrc_force_sis(pqisrc_softstate_t *softs)
{		{
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;

if (SIS_IS_KERNEL_PANIC(softs)) {		if (SIS_IS_KERNEL_PANIC(softs)) {
DBG_INIT("Controller FW is not runnning");		DBG_INIT("Controller FW is not runnning");
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;
}		}

if (PQI_GET_CTRL_MODE(softs) == CTRL_SIS_MODE) {		if (PQI_GET_CTRL_MODE(softs) == CTRL_SIS_MODE) {
return ret;		return ret;
}		}

if (SIS_IS_KERNEL_UP(softs)) {		if (SIS_IS_KERNEL_UP(softs)) {
PQI_SAVE_CTRL_MODE(softs, CTRL_SIS_MODE);		PQI_SAVE_CTRL_MODE(softs, CTRL_SIS_MODE);
return ret;		return ret;
}		}
/* Disable interrupts ? */		/* Disable interrupts ? */
sis_disable_interrupt(softs);		sis_disable_interrupt(softs);

/* reset pqi, this will delete queues */		/* reset pqi, this will delete queues */
ret = pqi_reset(softs);		ret = pqi_reset(softs);
if (ret) {		if (ret) {
return ret;		return ret;
}		}
/* Re enable SIS */		/* Re enable SIS */
ret = pqisrc_reenable_sis(softs);		ret = pqisrc_reenable_sis(softs);
if (ret) {		if (ret) {
return ret;		return ret;
}		}

PQI_SAVE_CTRL_MODE(softs, CTRL_SIS_MODE);		PQI_SAVE_CTRL_MODE(softs, CTRL_SIS_MODE);

return ret;		return ret;
}		}

int pqisrc_wait_for_cmnd_complete(pqisrc_softstate_t *softs)		static int
		pqisrc_wait_for_cmnd_complete(pqisrc_softstate_t *softs)
{		{
		int count = 0;
int ret = PQI_STATUS_SUCCESS;		int ret = PQI_STATUS_SUCCESS;
int tmo = PQI_CMND_COMPLETE_TMO;

COND_WAIT((softs->taglist.num_elem == softs->max_outstanding_io), tmo);		DBG_NOTE("softs->taglist.num_elem : %d",softs->taglist.num_elem);
if (!tmo) {
DBG_ERR("Pending commands %x!!!",softs->taglist.num_elem);		if (softs->taglist.num_elem == softs->max_outstanding_io)
ret = PQI_STATUS_TIMEOUT;		return ret;
		else {
		DBG_WARN("%d commands pending\n",
		softs->max_outstanding_io - softs->taglist.num_elem);

		while(1) {

		/* Since heartbeat timer stopped ,check for firmware status*/
		if (SIS_IS_KERNEL_PANIC(softs)) {
		DBG_ERR("Controller FW is not running\n");
		return PQI_STATUS_FAILURE;
}		}

		if (softs->taglist.num_elem != softs->max_outstanding_io) {
		/* Sleep for 1 msec */
		OS_SLEEP(1000);
		count++;
		if(count % 1000 == 0) {
		DBG_WARN("Waited for %d seconds", count/1000);
		}
		if (count >= PQI_QUIESCE_TIMEOUT) {
		return PQI_STATUS_FAILURE;
		}
		continue;
		}
		break;
		}
		}
return ret;		return ret;
}		}

void pqisrc_complete_internal_cmds(pqisrc_softstate_t *softs)		static void
		pqisrc_complete_internal_cmds(pqisrc_softstate_t *softs)
{		{

int tag = 0;		int tag = 0;
rcb_t *rcb;		rcb_t *rcb;

for (tag = 1; tag <= softs->max_outstanding_io; tag++) {		for (tag = 1; tag <= softs->max_outstanding_io; tag++) {
rcb = &softs->rcb[tag];		rcb = &softs->rcb[tag];
if(rcb->req_pending && is_internal_req(rcb)) {		if(rcb->req_pending && is_internal_req(rcb)) {
rcb->status = REQUEST_FAILED;		rcb->status = REQUEST_FAILED;
rcb->req_pending = false;		rcb->req_pending = false;
}		}
}		}
}		}


/*		/*
* Uninitialize the resources used during PQI initialization.		* Uninitialize the resources used during PQI initialization.
*/		*/
void pqisrc_pqi_uninit(pqisrc_softstate_t *softs)		void
		pqisrc_pqi_uninit(pqisrc_softstate_t *softs)
{		{
int i, ret;		int i, ret;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

/* Wait for any rescan to finish */		/* Wait for any rescan to finish */
pqisrc_wait_for_rescan_complete(softs);		pqisrc_wait_for_rescan_complete(softs);

/* Wait for commands to complete */		/* Wait for commands to complete */
ret = pqisrc_wait_for_cmnd_complete(softs);		ret = pqisrc_wait_for_cmnd_complete(softs);

		/* disable and free the interrupt resources */
		os_destroy_intr(softs);

/* Complete all pending commands. */		/* Complete all pending commands. */
if(ret != PQI_STATUS_SUCCESS) {		if(ret != PQI_STATUS_SUCCESS) {
pqisrc_complete_internal_cmds(softs);		pqisrc_complete_internal_cmds(softs);
os_complete_outstanding_cmds_nodevice(softs);		os_complete_outstanding_cmds_nodevice(softs);
}		}

if(softs->devlist_lockcreated==true){		if(softs->devlist_lockcreated==true){
os_uninit_spinlock(&softs->devlist_lock);		os_uninit_spinlock(&softs->devlist_lock);
softs->devlist_lockcreated = false;		softs->devlist_lockcreated = false;
}		}

for (i = 0; i < softs->num_op_raid_ibq; i++) {		for (i = 0; i < softs->num_op_raid_ibq; i++) {
/* OP RAID IB Q */		/* OP RAID IB Q */
if(softs->op_raid_ib_q[i].lockcreated==true){		if(softs->op_raid_ib_q[i].lockcreated==true){
OS_UNINIT_PQILOCK(&softs->op_raid_ib_q[i].lock);		OS_UNINIT_PQILOCK(&softs->op_raid_ib_q[i].lock);
softs->op_raid_ib_q[i].lockcreated = false;		softs->op_raid_ib_q[i].lockcreated = false;
}		}

/* OP AIO IB Q */		/* OP AIO IB Q */
if(softs->op_aio_ib_q[i].lockcreated==true){		if(softs->op_aio_ib_q[i].lockcreated==true){
OS_UNINIT_PQILOCK(&softs->op_aio_ib_q[i].lock);		OS_UNINIT_PQILOCK(&softs->op_aio_ib_q[i].lock);
softs->op_aio_ib_q[i].lockcreated = false;		softs->op_aio_ib_q[i].lockcreated = false;
}		}
}		}

/* Free Op queues */		/* Free Op queues */
os_dma_mem_free(softs, &softs->op_ibq_dma_mem);		os_dma_mem_free(softs, &softs->op_ibq_dma_mem);
os_dma_mem_free(softs, &softs->op_obq_dma_mem);		os_dma_mem_free(softs, &softs->op_obq_dma_mem);
os_dma_mem_free(softs, &softs->event_q_dma_mem);		os_dma_mem_free(softs, &softs->event_q_dma_mem);



/* Free rcb */		/* Free rcb */
pqisrc_free_rcb(softs, softs->max_outstanding_io + 1);		pqisrc_free_rcb(softs, softs->max_outstanding_io + 1);

/* Free request id lists */		/* Free request id lists */
pqisrc_destroy_taglist(softs,&softs->taglist);		pqisrc_destroy_taglist(softs,&softs->taglist);

if(softs->admin_ib_queue.lockcreated==true){		if(softs->admin_ib_queue.lockcreated==true) {
OS_UNINIT_PQILOCK(&softs->admin_ib_queue.lock);		OS_UNINIT_PQILOCK(&softs->admin_ib_queue.lock);
softs->admin_ib_queue.lockcreated = false;		softs->admin_ib_queue.lockcreated = false;
}		}

/* Free Admin Queue */		/* Free Admin Queue */
os_dma_mem_free(softs, &softs->admin_queue_dma_mem);		os_dma_mem_free(softs, &softs->admin_queue_dma_mem);

/* Switch back to SIS mode */		/* Switch back to SIS mode */
if (pqisrc_force_sis(softs)) {		if (pqisrc_force_sis(softs)) {
DBG_ERR("Failed to switch back the adapter to SIS mode!\n");		DBG_ERR("Failed to switch back the adapter to SIS mode!\n");
}		}

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
}		}

/*		/*
* Function to initialize the adapter settings.		* Function to initialize the adapter settings.
*/		*/
int pqisrc_init(pqisrc_softstate_t *softs)		int
		pqisrc_init(pqisrc_softstate_t *softs)
{		{
int ret = 0;		int ret = 0;
int i = 0, j = 0;		int i = 0, j = 0;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

check_struct_sizes();		check_struct_sizes();

/* Init the Sync interface */		/* Init the Sync interface */
ret = pqisrc_sis_init(softs);		ret = pqisrc_sis_init(softs);
if (ret) {		if (ret) {
DBG_ERR("SIS Init failed with error %d\n", ret);		DBG_ERR("SIS Init failed with error %d\n", ret);
goto err_out;		goto err_out;
}		}

ret = os_create_semaphore("scan_lock", 1, &softs->scan_lock);		ret = os_create_semaphore("scan_lock", 1, &softs->scan_lock);
Show All 17 Lines	pqisrc_init(pqisrc_softstate_t *softs)
}		}

/* Report event configuration */		/* Report event configuration */
ret = pqisrc_report_event_config(softs);		ret = pqisrc_report_event_config(softs);
if(ret){		if(ret){
DBG_ERR(" Failed to configure Report events\n");		DBG_ERR(" Failed to configure Report events\n");
goto err_event;		goto err_event;
}		}

/* Set event configuration*/		/* Set event configuration*/
ret = pqisrc_set_event_config(softs);		ret = pqisrc_set_event_config(softs);
if(ret){		if(ret){
DBG_ERR(" Failed to configure Set events\n");		DBG_ERR(" Failed to configure Set events\n");
goto err_event;		goto err_event;
}		}

/* Check for For PQI spanning */		/* Check for For PQI spanning */
ret = pqisrc_get_ctrl_fw_version(softs);		ret = pqisrc_get_ctrl_fw_version(softs);
if(ret){		if(ret){
DBG_ERR(" Failed to get ctrl fw version\n");		DBG_ERR(" Failed to get ctrl fw version\n");
goto err_fw_version;		goto err_fw_version;
}		}

/* update driver version in to FW */		/* update driver version in to FW */
ret = pqisrc_write_driver_version_to_host_wellness(softs);		ret = pqisrc_write_driver_version_to_host_wellness(softs);
if (ret) {		if (ret) {
DBG_ERR(" Failed to update driver version in to FW");		DBG_ERR(" Failed to update driver version in to FW");
goto err_host_wellness;		goto err_host_wellness;
}		}


os_strlcpy(softs->devlist_lock_name, "devlist_lock", LOCKNAME_SIZE);		os_strlcpy(softs->devlist_lock_name, "devlist_lock", LOCKNAME_SIZE);
ret = os_init_spinlock(softs, &softs->devlist_lock, softs->devlist_lock_name);		ret = os_init_spinlock(softs, &softs->devlist_lock, softs->devlist_lock_name);
if(ret){		if(ret){
DBG_ERR(" Failed to initialize devlist_lock\n");		DBG_ERR(" Failed to initialize devlist_lock\n");
softs->devlist_lockcreated=false;		softs->devlist_lockcreated=false;
goto err_lock;		goto err_lock;
}		}
softs->devlist_lockcreated = true;		softs->devlist_lockcreated = true;

OS_ATOMIC64_SET(softs, num_intrs, 0);
softs->prev_num_intrs = softs->num_intrs;

/* Get the PQI configuration table to read heart-beat counter*/		/* Get the PQI configuration table to read heart-beat counter*/
if (PQI_NEW_HEARTBEAT_MECHANISM(softs)) {
ret = pqisrc_process_config_table(softs);		ret = pqisrc_process_config_table(softs);
if (ret) {		if (ret) {
DBG_ERR("Failed to process PQI configuration table %d\n", ret);		DBG_ERR("Failed to process PQI configuration table %d\n", ret);
goto err_config_tab;		goto err_config_tab;
}		}
}

if (PQI_NEW_HEARTBEAT_MECHANISM(softs))
softs->prev_heartbeat_count = CTRLR_HEARTBEAT_CNT(softs) - OS_FW_HEARTBEAT_TIMER_INTERVAL;		softs->prev_heartbeat_count = CTRLR_HEARTBEAT_CNT(softs) - OS_FW_HEARTBEAT_TIMER_INTERVAL;

/* Init device list */		/* Init device list */
for(i = 0; i < PQI_MAX_DEVICES; i++)		for(i = 0; i < PQI_MAX_DEVICES; i++)
for(j = 0; j < PQI_MAX_MULTILUN; j++)		for(j = 0; j < PQI_MAX_MULTILUN; j++)
softs->device_list[i][j] = NULL;		softs->device_list[i][j] = NULL;

pqisrc_init_targetid_pool(softs);		pqisrc_init_targetid_pool(softs);

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
return ret;		return ret;

err_config_tab:		err_config_tab:
if(softs->devlist_lockcreated==true){		if(softs->devlist_lockcreated==true){
os_uninit_spinlock(&softs->devlist_lock);		os_uninit_spinlock(&softs->devlist_lock);
softs->devlist_lockcreated = false;		softs->devlist_lockcreated = false;
}		}
err_lock:		err_lock:
err_fw_version:		err_fw_version:
err_event:		err_event:
err_host_wellness:		err_host_wellness:
os_destroy_intr(softs);
err_intr:		err_intr:
pqisrc_pqi_uninit(softs);		pqisrc_pqi_uninit(softs);
err_pqi:		err_pqi:
os_destroy_semaphore(&softs->scan_lock);		os_destroy_semaphore(&softs->scan_lock);
err_scan_lock:		err_scan_lock:
pqisrc_sis_uninit(softs);		pqisrc_sis_uninit(softs);
err_out:		err_out:
DBG_FUNC("OUT failed\n");		DBG_FUNC("OUT failed\n");
return ret;		return ret;
}		}

/*		/*
* Write all data in the adapter's battery-backed cache to		* Write all data in the adapter's battery-backed cache to
* storage.		* storage.
*/		*/
int pqisrc_flush_cache( pqisrc_softstate_t *softs,		int
		pqisrc_flush_cache( pqisrc_softstate_t *softs,
enum pqisrc_flush_cache_event_type event_type)		enum pqisrc_flush_cache_event_type event_type)
{		{
int rval = PQI_STATUS_SUCCESS;		int rval = PQI_STATUS_SUCCESS;
pqisrc_raid_req_t request;		pqisrc_raid_req_t request;
pqisrc_bmic_flush_cache_t *flush_buff = NULL;		pqisrc_bmic_flush_cache_t *flush_buff = NULL;

DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

if (pqisrc_ctrl_offline(softs))		if (pqisrc_ctrl_offline(softs))
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;

flush_buff = os_mem_alloc(softs, sizeof(pqisrc_bmic_flush_cache_t));		flush_buff = os_mem_alloc(softs, sizeof(pqisrc_bmic_flush_cache_t));
if (!flush_buff) {		if (!flush_buff) {
DBG_ERR("Failed to allocate memory for flush cache params\n");		DBG_ERR("Failed to allocate memory for flush cache params\n");
rval = PQI_STATUS_FAILURE;		rval = PQI_STATUS_FAILURE;
return rval;		return rval;
}		}

flush_buff->halt_event = event_type;		flush_buff->halt_event = event_type;

Show All 13 Lines	pqisrc_flush_cache( pqisrc_softstate_t *softs,
DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");

return rval;		return rval;
}		}

/*		/*
* Uninitialize the adapter.		* Uninitialize the adapter.
*/		*/
void pqisrc_uninit(pqisrc_softstate_t *softs)		void
		pqisrc_uninit(pqisrc_softstate_t *softs)
{		{
DBG_FUNC("IN\n");		DBG_FUNC("IN\n");

pqisrc_pqi_uninit(softs);		pqisrc_pqi_uninit(softs);

pqisrc_sis_uninit(softs);		pqisrc_sis_uninit(softs);

os_destroy_semaphore(&softs->scan_lock);		os_destroy_semaphore(&softs->scan_lock);

os_destroy_intr(softs);

pqisrc_cleanup_devices(softs);		pqisrc_cleanup_devices(softs);

DBG_FUNC("OUT\n");		DBG_FUNC("OUT\n");
}		}