Differential D24428 Diff 71767 sys/dev/smartpqi/smartpqi_request.c

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sys/dev/smartpqi/smartpqi_request.c

/*-		/*-
* Copyright (c) 2018 Microsemi Corporation.		* Copyright (c) 2016-2019 Microsemi Corporation.
		* Copyright (c) 2020 Microchip Technology Inc. and it's subsidiaries.
		*
* All rights reserved.		* 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
Show All 31 Lines	uint32_t pqisrc_embedded_sgl_count(uint32_t elem_alloted)
**/		**/
if(elem_alloted - 1)		if(elem_alloted - 1)
embedded_sgl_count += ((elem_alloted - 1) * MAX_EMBEDDED_SG_IN_IU);		embedded_sgl_count += ((elem_alloted - 1) * MAX_EMBEDDED_SG_IN_IU);
DBG_IO("embedded_sgl_count :%d\n",embedded_sgl_count);		DBG_IO("embedded_sgl_count :%d\n",embedded_sgl_count);

DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");

return embedded_sgl_count;		return embedded_sgl_count;

}		}

/* Subroutine to find out contiguous free elem in IU */		/* Subroutine to find out contiguous free elem in IU */
static inline		static inline
uint32_t pqisrc_contiguous_free_elem(uint32_t pi, uint32_t ci, uint32_t elem_in_q)		uint32_t pqisrc_contiguous_free_elem(uint32_t pi, uint32_t ci, uint32_t elem_in_q)
{		{
uint32_t contiguous_free_elem = 0;		uint32_t contiguous_free_elem = 0;

DBG_FUNC(" IN ");		DBG_FUNC(" IN ");

if(pi >= ci) {		if(pi >= ci) {
contiguous_free_elem = (elem_in_q - pi);		contiguous_free_elem = (elem_in_q - pi);
if(ci == 0)		if(ci == 0)
contiguous_free_elem -= 1;		contiguous_free_elem -= 1;
} else {		} else {
contiguous_free_elem = (ci - pi - 1);		contiguous_free_elem = (ci - pi - 1);
}		}

DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");

return contiguous_free_elem;		return contiguous_free_elem;
}		}

/* Subroutine to find out num of elements need for the request */		/* Subroutine to find out num of elements need for the request */
static uint32_t		static uint32_t
pqisrc_num_elem_needed(pqisrc_softstate_t *softs, uint32_t SG_Count)		pqisrc_num_elem_needed(pqisrc_softstate_t *softs, uint32_t SG_Count)
{		{
uint32_t num_sg;		uint32_t num_sg;
uint32_t num_elem_required = 1;		uint32_t num_elem_required = 1;
DBG_FUNC(" IN ");		DBG_FUNC(" IN ");
DBG_IO("SGL_Count :%d",SG_Count);		DBG_IO("SGL_Count :%d",SG_Count);
/********		/********
If SG_Count greater than max sg per IU i.e 4 or 68		If SG_Count greater than max sg per IU i.e 4 or 68
(4 is with out spanning or 68 is with spanning) chaining is required.		(4 is with out spanning or 68 is with spanning) chaining is required.
OR, If SG_Count <= MAX_EMBEDDED_SG_IN_FIRST_IU then,		OR, If SG_Count <= MAX_EMBEDDED_SG_IN_FIRST_IU then,
on these two cases one element is enough.		on these two cases one element is enough.
********/		********/
if(SG_Count > softs->max_sg_per_iu \|\| SG_Count <= MAX_EMBEDDED_SG_IN_FIRST_IU)		if(SG_Count > softs->max_sg_per_iu \|\| SG_Count <= MAX_EMBEDDED_SG_IN_FIRST_IU)
return num_elem_required;		return num_elem_required;
/*		/*
SGL Count Other Than First IU		SGL Count Other Than First IU
*/		*/
num_sg = SG_Count - MAX_EMBEDDED_SG_IN_FIRST_IU;		num_sg = SG_Count - MAX_EMBEDDED_SG_IN_FIRST_IU;
num_elem_required += PQISRC_DIV_ROUND_UP(num_sg, MAX_EMBEDDED_SG_IN_IU);		num_elem_required += PQISRC_DIV_ROUND_UP(num_sg, MAX_EMBEDDED_SG_IN_IU);
DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");
return num_elem_required;		return num_elem_required;
}		}

/* Subroutine to build SG list for the IU submission*/		/* Subroutine to build SG list for the IU submission*/
static		static
boolean_t pqisrc_build_sgl(sgt_t sg_array, rcb_t rcb, iu_header_t *iu_hdr,		boolean_t pqisrc_build_sgl(sgt_t sg_array, rcb_t rcb, iu_header_t *iu_hdr,
uint32_t num_elem_alloted)		uint32_t num_elem_alloted)
{		{
uint32_t i;		uint32_t i;
uint32_t num_sg = OS_GET_IO_SG_COUNT(rcb);		uint32_t num_sg = OS_GET_IO_SG_COUNT(rcb);
sgt_t *sgt = sg_array;		sgt_t *sgt = sg_array;
sgt_t *sg_chain = NULL;		sgt_t *sg_chain = NULL;
boolean_t partial = false;		boolean_t partial = false;

DBG_FUNC(" IN ");		DBG_FUNC(" IN ");

DBG_IO("SGL_Count :%d",num_sg);		DBG_IO("SGL_Count :%d",num_sg);
if (0 == num_sg) {		if (0 == num_sg) {
goto out;		goto out;
}		}

if (num_sg <= pqisrc_embedded_sgl_count(num_elem_alloted)) {		if (num_sg <= pqisrc_embedded_sgl_count(num_elem_alloted)) {
for (i = 0; i < num_sg; i++, sgt++) {		for (i = 0; i < num_sg; i++, sgt++) {
sgt->addr= OS_GET_IO_SG_ADDR(rcb,i);		sgt->addr= OS_GET_IO_SG_ADDR(rcb,i);
sgt->len= OS_GET_IO_SG_LEN(rcb,i);		sgt->len= OS_GET_IO_SG_LEN(rcb,i);
sgt->flags= 0;		sgt->flags= 0;
}		}

sg_array[num_sg - 1].flags = SG_FLAG_LAST;		sg_array[num_sg - 1].flags = SG_FLAG_LAST;
} else {		} else {
/**		/**
SGL Chaining		SGL Chaining
**/		**/
sg_chain = rcb->sg_chain_virt;		sg_chain = rcb->sg_chain_virt;
sgt->addr = rcb->sg_chain_dma;		sgt->addr = rcb->sg_chain_dma;
sgt->len = num_sg * sizeof(sgt_t);		sgt->len = num_sg * sizeof(sgt_t);
sgt->flags = SG_FLAG_CHAIN;		sgt->flags = SG_FLAG_CHAIN;

sgt = sg_chain;		sgt = sg_chain;
for (i = 0; i < num_sg; i++, sgt++) {		for (i = 0; i < num_sg; i++, sgt++) {
sgt->addr = OS_GET_IO_SG_ADDR(rcb,i);		sgt->addr = OS_GET_IO_SG_ADDR(rcb,i);
sgt->len = OS_GET_IO_SG_LEN(rcb,i);		sgt->len = OS_GET_IO_SG_LEN(rcb,i);
sgt->flags = 0;		sgt->flags = 0;
}		}

sg_chain[num_sg - 1].flags = SG_FLAG_LAST;		sg_chain[num_sg - 1].flags = SG_FLAG_LAST;
num_sg = 1;		num_sg = 1;
partial = true;		partial = true;

}		}
out:		out:
iu_hdr->iu_length = num_sg * sizeof(sgt_t);		iu_hdr->iu_length = num_sg * sizeof(sgt_t);
DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");
return partial;		return partial;

}		}

/Subroutine used to Build the RAID request /		/Subroutine used to Build the RAID request /
static void		static void
pqisrc_build_raid_io(pqisrc_softstate_t softs, rcb_t rcb,		pqisrc_build_raid_io(pqisrc_softstate_t softs, rcb_t rcb,
pqisrc_raid_req_t *raid_req, uint32_t num_elem_alloted)		pqisrc_raid_req_t *raid_req, uint32_t num_elem_alloted)
{		{
DBG_FUNC(" IN ");		DBG_FUNC(" IN ");

raid_req->header.iu_type = PQI_IU_TYPE_RAID_PATH_IO_REQUEST;		raid_req->header.iu_type = PQI_IU_TYPE_RAID_PATH_IO_REQUEST;
raid_req->header.comp_feature = 0;		raid_req->header.comp_feature = 0;
raid_req->response_queue_id = OS_GET_IO_RESP_QID(softs, rcb);		raid_req->response_queue_id = OS_GET_IO_RESP_QID(softs, rcb);
raid_req->work_area[0] = 0;		raid_req->work_area[0] = 0;
raid_req->work_area[1] = 0;		raid_req->work_area[1] = 0;
raid_req->request_id = rcb->tag;		raid_req->request_id = rcb->tag;
raid_req->nexus_id = 0;		raid_req->nexus_id = 0;
raid_req->buffer_length = GET_SCSI_BUFFLEN(rcb);		raid_req->buffer_length = GET_SCSI_BUFFLEN(rcb);
memcpy(raid_req->lun_number, rcb->dvp->scsi3addr,		memcpy(raid_req->lun_number, rcb->dvp->scsi3addr,
sizeof(raid_req->lun_number));		sizeof(raid_req->lun_number));
raid_req->protocol_spec = 0;		raid_req->protocol_spec = 0;
raid_req->data_direction = rcb->data_dir;		raid_req->data_direction = rcb->data_dir;
raid_req->reserved1 = 0;		raid_req->reserved1 = 0;
raid_req->fence = 0;		raid_req->fence = 0;
raid_req->error_index = raid_req->request_id;		raid_req->error_index = raid_req->request_id;
raid_req->reserved2 = 0;		raid_req->reserved2 = 0;
raid_req->task_attribute = OS_GET_TASK_ATTR(rcb);		raid_req->task_attribute = OS_GET_TASK_ATTR(rcb);
raid_req->command_priority = 0;		raid_req->command_priority = 0;
raid_req->reserved3 = 0;		raid_req->reserved3 = 0;
raid_req->reserved4 = 0;		raid_req->reserved4 = 0;
raid_req->reserved5 = 0;		raid_req->reserved5 = 0;

/* As cdb and additional_cdb_bytes are contiguous,		/* As cdb and additional_cdb_bytes are contiguous,
update them in a single statement */		update them in a single statement */
memcpy(raid_req->cdb, rcb->cdbp, rcb->cmdlen);		memcpy(raid_req->cdb, rcb->cdbp, rcb->cmdlen);
#if 0		#if 0
DBG_IO("CDB :");		DBG_IO("CDB :");
for(i = 0; i < rcb->cmdlen ; i++)		for(i = 0; i < rcb->cmdlen ; i++)
DBG_IO(" 0x%x \n ",raid_req->cdb[i]);		DBG_IO(" 0x%x \n ",raid_req->cdb[i]);
#endif		#endif

switch (rcb->cmdlen) {		switch (rcb->cmdlen) {
case 6:		case 6:
case 10:		case 10:
case 12:		case 12:
case 16:		case 16:
raid_req->additional_cdb_bytes_usage =		raid_req->additional_cdb_bytes_usage =
PQI_ADDITIONAL_CDB_BYTES_0;		PQI_ADDITIONAL_CDB_BYTES_0;
break;		break;
Show All 10 Lines	case 28:
PQI_ADDITIONAL_CDB_BYTES_12;		PQI_ADDITIONAL_CDB_BYTES_12;
break;		break;
case 32:		case 32:
default: /* todo:review again */		default: /* todo:review again */
raid_req->additional_cdb_bytes_usage =		raid_req->additional_cdb_bytes_usage =
PQI_ADDITIONAL_CDB_BYTES_16;		PQI_ADDITIONAL_CDB_BYTES_16;
break;		break;
}		}

/* Frame SGL Descriptor */		/* Frame SGL Descriptor */
raid_req->partial = pqisrc_build_sgl(&raid_req->sg_descriptors[0], rcb,		raid_req->partial = pqisrc_build_sgl(&raid_req->sg_descriptors[0], rcb,
&raid_req->header, num_elem_alloted);		&raid_req->header, num_elem_alloted);

raid_req->header.iu_length +=		raid_req->header.iu_length +=
offsetof(pqisrc_raid_req_t, sg_descriptors) - sizeof(iu_header_t);		offsetof(pqisrc_raid_req_t, sg_descriptors) - sizeof(iu_header_t);

#if 0		#if 0
DBG_IO("raid_req->header.iu_type : 0x%x", raid_req->header.iu_type);		DBG_IO("raid_req->header.iu_type : 0x%x", raid_req->header.iu_type);
DBG_IO("raid_req->response_queue_id :%d\n"raid_req->response_queue_id);		DBG_IO("raid_req->response_queue_id :%d\n"raid_req->response_queue_id);
DBG_IO("raid_req->request_id : 0x%x", raid_req->request_id);		DBG_IO("raid_req->request_id : 0x%x", raid_req->request_id);
DBG_IO("raid_req->buffer_length : 0x%x", raid_req->buffer_length);		DBG_IO("raid_req->buffer_length : 0x%x", raid_req->buffer_length);
DBG_IO("raid_req->task_attribute : 0x%x", raid_req->task_attribute);		DBG_IO("raid_req->task_attribute : 0x%x", raid_req->task_attribute);
DBG_IO("raid_req->lun_number : 0x%x", raid_req->lun_number);		DBG_IO("raid_req->lun_number : 0x%x", raid_req->lun_number);
DBG_IO("raid_req->error_index : 0x%x", raid_req->error_index);		DBG_IO("raid_req->error_index : 0x%x", raid_req->error_index);
DBG_IO("raid_req->sg_descriptors[0].addr : %p", (void*)raid_req->sg_descriptors[0].addr);		DBG_IO("raid_req->sg_descriptors[0].addr : %p", (void*)raid_req->sg_descriptors[0].addr);
DBG_IO("raid_req->sg_descriptors[0].len : 0x%x", raid_req->sg_descriptors[0].len);		DBG_IO("raid_req->sg_descriptors[0].len : 0x%x", raid_req->sg_descriptors[0].len);
DBG_IO("raid_req->sg_descriptors[0].flags : 0%x", raid_req->sg_descriptors[0].flags);		DBG_IO("raid_req->sg_descriptors[0].flags : 0%x", raid_req->sg_descriptors[0].flags);
#endif		#endif
rcb->success_cmp_callback = pqisrc_process_io_response_success;		rcb->success_cmp_callback = pqisrc_process_io_response_success;
rcb->error_cmp_callback = pqisrc_process_raid_response_error;		rcb->error_cmp_callback = pqisrc_process_raid_response_error;
rcb->resp_qid = raid_req->response_queue_id;		rcb->resp_qid = raid_req->response_queue_id;

DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");

}		}

/Subroutine used to Build the AIO request /		/Subroutine used to Build the AIO request /
static void		static void
pqisrc_build_aio_io(pqisrc_softstate_t softs, rcb_t rcb,		pqisrc_build_aio_io(pqisrc_softstate_t softs, rcb_t rcb,
pqi_aio_req_t *aio_req, uint32_t num_elem_alloted)		pqi_aio_req_t *aio_req, uint32_t num_elem_alloted)
{		{
DBG_FUNC(" IN ");		DBG_FUNC(" IN ");

aio_req->header.iu_type = PQI_IU_TYPE_AIO_PATH_IO_REQUEST;		aio_req->header.iu_type = PQI_IU_TYPE_AIO_PATH_IO_REQUEST;
aio_req->header.comp_feature = 0;		aio_req->header.comp_feature = 0;
aio_req->response_queue_id = OS_GET_IO_RESP_QID(softs, rcb);		aio_req->response_queue_id = OS_GET_IO_RESP_QID(softs, rcb);
aio_req->work_area[0] = 0;		aio_req->work_area[0] = 0;
aio_req->work_area[1] = 0;		aio_req->work_area[1] = 0;
aio_req->req_id = rcb->tag;		aio_req->req_id = rcb->tag;
aio_req->res1[0] = 0;		aio_req->res1[0] = 0;
aio_req->res1[1] = 0;		aio_req->res1[1] = 0;
aio_req->nexus = rcb->ioaccel_handle;		aio_req->nexus = rcb->ioaccel_handle;
aio_req->buf_len = GET_SCSI_BUFFLEN(rcb);		aio_req->buf_len = GET_SCSI_BUFFLEN(rcb);
aio_req->data_dir = rcb->data_dir;		aio_req->data_dir = rcb->data_dir;
aio_req->mem_type = 0;		aio_req->mem_type = 0;
aio_req->fence = 0;		aio_req->fence = 0;
aio_req->res2 = 0;		aio_req->res2 = 0;
aio_req->task_attr = OS_GET_TASK_ATTR(rcb);		aio_req->task_attr = OS_GET_TASK_ATTR(rcb);
aio_req->cmd_prio = 0;		aio_req->cmd_prio = 0;
aio_req->res3 = 0;		aio_req->res3 = 0;
aio_req->err_idx = aio_req->req_id;		aio_req->err_idx = aio_req->req_id;
aio_req->cdb_len = rcb->cmdlen;		aio_req->cdb_len = rcb->cmdlen;

if(rcb->cmdlen > sizeof(aio_req->cdb))		if(rcb->cmdlen > sizeof(aio_req->cdb))
rcb->cmdlen = sizeof(aio_req->cdb);		rcb->cmdlen = sizeof(aio_req->cdb);
memcpy(aio_req->cdb, rcb->cdbp, rcb->cmdlen);		memcpy(aio_req->cdb, rcb->cdbp, rcb->cmdlen);
#if 0		#if 0
DBG_IO("CDB : \n");		DBG_IO("CDB : \n");
for(int i = 0; i < rcb->cmdlen ; i++)		for(int i = 0; i < rcb->cmdlen ; i++)
DBG_IO(" 0x%x \n",aio_req->cdb[i]);		DBG_IO(" 0x%x \n",aio_req->cdb[i]);
#endif		#endif
memset(aio_req->lun,0,sizeof(aio_req->lun));		memset(aio_req->lun,0,sizeof(aio_req->lun));
memset(aio_req->res4,0,sizeof(aio_req->res4));		memset(aio_req->res4,0,sizeof(aio_req->res4));

if(rcb->encrypt_enable == true) {		if(rcb->encrypt_enable == true) {
aio_req->encrypt_enable = true;		aio_req->encrypt_enable = true;
aio_req->encrypt_key_index = LE_16(rcb->enc_info.data_enc_key_index);		aio_req->encrypt_key_index = LE_16(rcb->enc_info.data_enc_key_index);
aio_req->encrypt_twk_low = LE_32(rcb->enc_info.encrypt_tweak_lower);		aio_req->encrypt_twk_low = LE_32(rcb->enc_info.encrypt_tweak_lower);
aio_req->encrypt_twk_high = LE_32(rcb->enc_info.encrypt_tweak_upper);		aio_req->encrypt_twk_high = LE_32(rcb->enc_info.encrypt_tweak_upper);
} else {		} else {
aio_req->encrypt_enable = 0;		aio_req->encrypt_enable = 0;
aio_req->encrypt_key_index = 0;		aio_req->encrypt_key_index = 0;
aio_req->encrypt_twk_high = 0;		aio_req->encrypt_twk_high = 0;
aio_req->encrypt_twk_low = 0;		aio_req->encrypt_twk_low = 0;
}		}

/* Frame SGL Descriptor */		/* Frame SGL Descriptor */
aio_req->partial = pqisrc_build_sgl(&aio_req->sg_desc[0], rcb,		aio_req->partial = pqisrc_build_sgl(&aio_req->sg_desc[0], rcb,
&aio_req->header, num_elem_alloted);		&aio_req->header, num_elem_alloted);

aio_req->num_sg = aio_req->header.iu_length / sizeof(sgt_t);		aio_req->num_sg = aio_req->header.iu_length / sizeof(sgt_t);

DBG_INFO("aio_req->num_sg :%d",aio_req->num_sg);		DBG_INFO("aio_req->num_sg :%d",aio_req->num_sg);

aio_req->header.iu_length += offsetof(pqi_aio_req_t, sg_desc) -		aio_req->header.iu_length += offsetof(pqi_aio_req_t, sg_desc) -
sizeof(iu_header_t);		sizeof(iu_header_t);
#if 0		#if 0
DBG_IO("aio_req->header.iu_type : 0x%x \n",aio_req->header.iu_type);		DBG_IO("aio_req->header.iu_type : 0x%x \n",aio_req->header.iu_type);
DBG_IO("aio_req->resp_qid :0x%x",aio_req->resp_qid);		DBG_IO("aio_req->resp_qid :0x%x",aio_req->resp_qid);
DBG_IO("aio_req->req_id : 0x%x \n",aio_req->req_id);		DBG_IO("aio_req->req_id : 0x%x \n",aio_req->req_id);
DBG_IO("aio_req->nexus : 0x%x \n",aio_req->nexus);		DBG_IO("aio_req->nexus : 0x%x \n",aio_req->nexus);
DBG_IO("aio_req->buf_len : 0x%x \n",aio_req->buf_len);		DBG_IO("aio_req->buf_len : 0x%x \n",aio_req->buf_len);
DBG_IO("aio_req->data_dir : 0x%x \n",aio_req->data_dir);		DBG_IO("aio_req->data_dir : 0x%x \n",aio_req->data_dir);
DBG_IO("aio_req->task_attr : 0x%x \n",aio_req->task_attr);		DBG_IO("aio_req->task_attr : 0x%x \n",aio_req->task_attr);
DBG_IO("aio_req->err_idx : 0x%x \n",aio_req->err_idx);		DBG_IO("aio_req->err_idx : 0x%x \n",aio_req->err_idx);
DBG_IO("aio_req->num_sg :%d",aio_req->num_sg);		DBG_IO("aio_req->num_sg :%d",aio_req->num_sg);
DBG_IO("aio_req->sg_desc[0].addr : %p \n", (void*)aio_req->sg_desc[0].addr);		DBG_IO("aio_req->sg_desc[0].addr : %p \n", (void*)aio_req->sg_desc[0].addr);
DBG_IO("aio_req->sg_desc[0].len : 0%x \n", aio_req->sg_desc[0].len);		DBG_IO("aio_req->sg_desc[0].len : 0%x \n", aio_req->sg_desc[0].len);
DBG_IO("aio_req->sg_desc[0].flags : 0%x \n", aio_req->sg_desc[0].flags);		DBG_IO("aio_req->sg_desc[0].flags : 0%x \n", aio_req->sg_desc[0].flags);
#endif		#endif

rcb->success_cmp_callback = pqisrc_process_io_response_success;		rcb->success_cmp_callback = pqisrc_process_io_response_success;
rcb->error_cmp_callback = pqisrc_process_aio_response_error;		rcb->error_cmp_callback = pqisrc_process_aio_response_error;
rcb->resp_qid = aio_req->response_queue_id;		rcb->resp_qid = aio_req->response_queue_id;

DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");

}		}

/Function used to build and send RAID/AIO /		/Function used to build and send RAID/AIO /
int pqisrc_build_send_io(pqisrc_softstate_t softs,rcb_t rcb)		int
		pqisrc_build_send_io(pqisrc_softstate_t softs,rcb_t rcb)
{		{
ib_queue_t *ib_q_array = softs->op_aio_ib_q;		ib_queue_t *ib_q_array = softs->op_aio_ib_q;
ib_queue_t *ib_q = NULL;		ib_queue_t *ib_q = NULL;
char *ib_iu = NULL;		char *ib_iu = NULL;
IO_PATH_T io_path = AIO_PATH;		IO_PATH_T io_path = AIO_PATH;
uint32_t TraverseCount = 0;		uint32_t TraverseCount = 0;
int first_qindex = OS_GET_IO_REQ_QINDEX(softs, rcb);		int first_qindex = OS_GET_IO_REQ_QINDEX(softs, rcb);
int qindex = first_qindex;		int qindex = first_qindex;
uint32_t num_op_ib_q = softs->num_op_aio_ibq;		uint32_t num_op_ib_q = softs->num_op_aio_ibq;
uint32_t num_elem_needed;		uint32_t num_elem_needed;
uint32_t num_elem_alloted = 0;		uint32_t num_elem_alloted = 0;
pqi_scsi_dev_t *devp = rcb->dvp;		pqi_scsi_dev_t *devp = rcb->dvp;
uint8_t raidbypass_cdb[16];		uint8_t raidbypass_cdb[16];

DBG_FUNC(" IN ");		DBG_FUNC(" IN ");

		if(!rcb->aio_retry) {
rcb->cdbp = OS_GET_CDBP(rcb);		rcb->cdbp = OS_GET_CDBP(rcb);

if(IS_AIO_PATH(devp)) {		if(IS_AIO_PATH(devp)) {
/ IO for Physical Drive /		/ IO for Physical Drive /
/ Send in AIO PATH/		/ Send in AIO PATH/
rcb->ioaccel_handle = devp->ioaccel_handle;		rcb->ioaccel_handle = devp->ioaccel_handle;
} else {		} else {
int ret = PQI_STATUS_FAILURE;		int ret = PQI_STATUS_FAILURE;
/ IO for RAID Volume /		/ IO for RAID Volume /
if (devp->offload_enabled) {		if (devp->offload_enabled) {
/ ByPass IO ,Send in AIO PATH /		/ ByPass IO ,Send in AIO PATH /
ret = pqisrc_send_scsi_cmd_raidbypass(softs,		ret = pqisrc_send_scsi_cmd_raidbypass(softs,
devp, rcb, raidbypass_cdb);		devp, rcb, raidbypass_cdb);
}		}

if (PQI_STATUS_FAILURE == ret) {		if (PQI_STATUS_FAILURE == ret) {
/ Send in RAID PATH /		/ Send in RAID PATH /
io_path = RAID_PATH;		io_path = RAID_PATH;
num_op_ib_q = softs->num_op_raid_ibq;		num_op_ib_q = softs->num_op_raid_ibq;
ib_q_array = softs->op_raid_ib_q;		ib_q_array = softs->op_raid_ib_q;
} else {		} else {
rcb->cdbp = raidbypass_cdb;		rcb->cdbp = raidbypass_cdb;
}		}
}		}
		} else {
		/* Retrying failed AIO IO */
		io_path = RAID_PATH;
		rcb->cdbp = OS_GET_CDBP(rcb);
		num_op_ib_q = softs->num_op_raid_ibq;
		ib_q_array = softs->op_raid_ib_q;
		}

num_elem_needed = pqisrc_num_elem_needed(softs, OS_GET_IO_SG_COUNT(rcb));		num_elem_needed = pqisrc_num_elem_needed(softs, OS_GET_IO_SG_COUNT(rcb));
DBG_IO("num_elem_needed :%d",num_elem_needed);		DBG_IO("num_elem_needed :%d",num_elem_needed);

do {		do {
uint32_t num_elem_available;		uint32_t num_elem_available;
ib_q = (ib_q_array + qindex);		ib_q = (ib_q_array + qindex);
PQI_LOCK(&ib_q->lock);		PQI_LOCK(&ib_q->lock);
num_elem_available = pqisrc_contiguous_free_elem(ib_q->pi_local,		num_elem_available = pqisrc_contiguous_free_elem(ib_q->pi_local,
*(ib_q->ci_virt_addr), ib_q->num_elem);		*(ib_q->ci_virt_addr), ib_q->num_elem);

DBG_IO("num_elem_avialable :%d\n",num_elem_available);		DBG_IO("num_elem_avialable :%d\n",num_elem_available);
if(num_elem_available >= num_elem_needed) {		if(num_elem_available >= num_elem_needed) {
num_elem_alloted = num_elem_needed;		num_elem_alloted = num_elem_needed;
break;		break;
}		}
DBG_IO("Current queue is busy! Hop to next queue\n");		DBG_IO("Current queue is busy! Hop to next queue\n");

PQI_UNLOCK(&ib_q->lock);		PQI_UNLOCK(&ib_q->lock);
qindex = (qindex + 1) % num_op_ib_q;		qindex = (qindex + 1) % num_op_ib_q;
if(qindex == first_qindex) {		if(qindex == first_qindex) {
if (num_elem_needed == 1)		if (num_elem_needed == 1)
break;		break;
TraverseCount += 1;		TraverseCount += 1;
num_elem_needed = 1;		num_elem_needed = 1;
}		}
}while(TraverseCount < 2);		}while(TraverseCount < 2);

DBG_IO("num_elem_alloted :%d",num_elem_alloted);		DBG_IO("num_elem_alloted :%d",num_elem_alloted);
if (num_elem_alloted == 0) {		if (num_elem_alloted == 0) {
DBG_WARN("OUT: IB Queues were full\n");		DBG_WARN("OUT: IB Queues were full\n");
return PQI_STATUS_QFULL;		return PQI_STATUS_QFULL;
}		}

		pqisrc_increment_device_active_io(softs,devp);

/* Get IB Queue Slot address to build IU */		/* Get IB Queue Slot address to build IU */
ib_iu = ib_q->array_virt_addr + (ib_q->pi_local * ib_q->elem_size);		ib_iu = ib_q->array_virt_addr + (ib_q->pi_local * ib_q->elem_size);

if(io_path == AIO_PATH) {		if(io_path == AIO_PATH) {
/ Build AIO structure /		/ Build AIO structure /
pqisrc_build_aio_io(softs, rcb, (pqi_aio_req_t*)ib_iu,		pqisrc_build_aio_io(softs, rcb, (pqi_aio_req_t*)ib_iu,
num_elem_alloted);		num_elem_alloted);
} else {		} else {
/ Build RAID structure /		/ Build RAID structure /
pqisrc_build_raid_io(softs, rcb, (pqisrc_raid_req_t*)ib_iu,		pqisrc_build_raid_io(softs, rcb, (pqisrc_raid_req_t*)ib_iu,
num_elem_alloted);		num_elem_alloted);
}		}

rcb->req_pending = true;		rcb->req_pending = true;
		rcb->req_q = ib_q;
		rcb->path = io_path;

/* Update the local PI */		/* Update the local PI */
ib_q->pi_local = (ib_q->pi_local + num_elem_alloted) % ib_q->num_elem;		ib_q->pi_local = (ib_q->pi_local + num_elem_alloted) % ib_q->num_elem;

DBG_INFO("ib_q->pi_local : %x\n", ib_q->pi_local);		DBG_INFO("ib_q->pi_local : %x\n", ib_q->pi_local);
DBG_INFO("ib_q->ci_virt_addr: %x\n",(ib_q->ci_virt_addr));		DBG_INFO("ib_q->ci_virt_addr: %x\n",(ib_q->ci_virt_addr));

/* Inform the fw about the new IU */		/* Inform the fw about the new IU */
PCI_MEM_PUT32(softs, ib_q->pi_register_abs, ib_q->pi_register_offset, ib_q->pi_local);		PCI_MEM_PUT32(softs, ib_q->pi_register_abs, ib_q->pi_register_offset, ib_q->pi_local);

PQI_UNLOCK(&ib_q->lock);		PQI_UNLOCK(&ib_q->lock);
DBG_FUNC(" OUT ");		DBG_FUNC(" OUT ");
return PQI_STATUS_SUCCESS;		return PQI_STATUS_SUCCESS;
}		}

/* Subroutine used to set encryption info as part of RAID bypass IO*/		/* Subroutine used to set encryption info as part of RAID bypass IO*/
static inline void pqisrc_set_enc_info(		static inline void
struct pqi_enc_info enc_info, struct raid_map raid_map,		pqisrc_set_enc_info(struct pqi_enc_info *enc_info,
uint64_t first_block)		struct raid_map *raid_map, uint64_t first_block)
{		{
uint32_t volume_blk_size;		uint32_t volume_blk_size;

/*		/*
* Set the encryption tweak values based on logical block address.		* Set the encryption tweak values based on logical block address.
* If the block size is 512, the tweak value is equal to the LBA.		* If the block size is 512, the tweak value is equal to the LBA.
* For other block sizes, tweak value is (LBA * block size) / 512.		* For other block sizes, tweak value is (LBA * block size) / 512.
*/		*/
Show All 18 Lines
#define HPSA_RAID_5 3 /* also used for RAID 50 */		#define HPSA_RAID_5 3 /* also used for RAID 50 */
#define HPSA_RAID_51 4		#define HPSA_RAID_51 4
#define HPSA_RAID_6 5 /* also used for RAID 60 */		#define HPSA_RAID_6 5 /* also used for RAID 60 */
#define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */		#define HPSA_RAID_ADM 6 /* also used for RAID 1+0 ADM */
#define HPSA_RAID_MAX HPSA_RAID_ADM		#define HPSA_RAID_MAX HPSA_RAID_ADM
#define HPSA_RAID_UNKNOWN 0xff		#define HPSA_RAID_UNKNOWN 0xff

/* Subroutine used to parse the scsi opcode and build the CDB for RAID bypass*/		/* Subroutine used to parse the scsi opcode and build the CDB for RAID bypass*/
int check_for_scsi_opcode(uint8_t cdb, boolean_t is_write, uint64_t *fst_blk,		int
uint32_t *blk_cnt) {		check_for_scsi_opcode(uint8_t cdb, boolean_t is_write, uint64_t *fst_blk,
		uint32_t *blk_cnt)
		{

switch (cdb[0]) {		switch (cdb[0]) {
case SCMD_WRITE_6:		case SCMD_WRITE_6:
*is_write = true;		*is_write = true;
case SCMD_READ_6:		case SCMD_READ_6:
*fst_blk = (uint64_t)(((cdb[1] & 0x1F) << 16) \|		*fst_blk = (uint64_t)(((cdb[1] & 0x1F) << 16) \|
(cdb[2] << 8) \| cdb[3]);		(cdb[2] << 8) \| cdb[3]);
*blk_cnt = (uint32_t)cdb[4];		*blk_cnt = (uint32_t)cdb[4];
if (*blk_cnt == 0)		if (*blk_cnt == 0)
Show All 19 Lines	case SCMD_READ_16:
break;		break;
default:		default:
/* Process via normal I/O path. */		/* Process via normal I/O path. */
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;
}		}
return PQI_STATUS_SUCCESS;		return PQI_STATUS_SUCCESS;
}		}

		/* print any arbitrary buffer of length total_len */
		void
		pqisrc_print_buffer(pqisrc_softstate_t softs, char msg, void *user_buf,
		uint32_t total_len, uint32_t flags)
		{
		#define LINE_BUF_LEN 60
		#define INDEX_PER_LINE 16
		uint32_t buf_consumed = 0;
		int ii;
		char line_buf[LINE_BUF_LEN];
		int line_len; /* written length per line */
		uint8_t this_char;

		if (user_buf == NULL)
		return;

		/* Print index columns */
		if (flags & PRINT_FLAG_HDR_COLUMN)
		{
		for (ii = 0, line_len = 0; ii < MIN(total_len, 16); ii++)
		{
		line_len += snprintf(line_buf + line_len, (LINE_BUF_LEN - line_len), "%02d ", ii);
		if ((line_len + 4) >= LINE_BUF_LEN)
		break;
		}
		DBG_NOTE("%15.15s:[ %s ]\n", "header", line_buf);
		}

		/* Print index columns */
		while(buf_consumed < total_len)
		{
		memset(line_buf, 0, LINE_BUF_LEN);

		for (ii = 0, line_len = 0; ii < INDEX_PER_LINE; ii++)
		{
		this_char = ((char)(user_buf) + buf_consumed);
		line_len += snprintf(line_buf + line_len, (LINE_BUF_LEN - line_len), "%02x ", this_char);

		buf_consumed++;
		if (buf_consumed >= total_len \|\| (line_len + 4) >= LINE_BUF_LEN)
		break;
		}
		DBG_NOTE("%15.15s:[ %s ]\n", msg, line_buf);
		}
		}


/*		/*
* Function used to build and send RAID bypass request to the adapter		* Function used to build and send RAID bypass request to the adapter
*/		*/
int pqisrc_send_scsi_cmd_raidbypass(pqisrc_softstate_t *softs,		int
		pqisrc_send_scsi_cmd_raidbypass(pqisrc_softstate_t *softs,
pqi_scsi_dev_t device, rcb_t rcb, uint8_t *cdb)		pqi_scsi_dev_t device, rcb_t rcb, uint8_t *cdb)
{		{
struct raid_map *raid_map;		struct raid_map *raid_map;
boolean_t is_write = false;		boolean_t is_write = false;
uint32_t map_idx;		uint32_t map_idx;
uint64_t fst_blk, lst_blk;		uint64_t fst_blk, lst_blk;
uint32_t blk_cnt, blks_per_row;		uint32_t blk_cnt, blks_per_row;
uint64_t fst_row, lst_row;		uint64_t fst_row, lst_row;
Show All 14 Lines	pqisrc_send_scsi_cmd_raidbypass(pqisrc_softstate_t *softs,
uint8_t cdb_length;		uint8_t cdb_length;
int offload_to_mirror;		int offload_to_mirror;
int i;		int i;
DBG_FUNC(" IN \n");		DBG_FUNC(" IN \n");
DBG_IO("!!!!!\n");		DBG_IO("!!!!!\n");

/* Check for eligible opcode, get LBA and block count. */		/* Check for eligible opcode, get LBA and block count. */
memcpy(cdb, OS_GET_CDBP(rcb), rcb->cmdlen);		memcpy(cdb, OS_GET_CDBP(rcb), rcb->cmdlen);

for(i = 0; i < rcb->cmdlen ; i++)		for(i = 0; i < rcb->cmdlen ; i++)
DBG_IO(" CDB [ %d ] : %x\n",i,cdb[i]);		DBG_IO(" CDB [ %d ] : %x\n",i,cdb[i]);
if(check_for_scsi_opcode(cdb, &is_write,		if(check_for_scsi_opcode(cdb, &is_write,
&fst_blk, &blk_cnt) == PQI_STATUS_FAILURE)		&fst_blk, &blk_cnt) == PQI_STATUS_FAILURE)
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;
/* Check for write to non-RAID-0. */		/* Check for write to non-RAID-0. */
if (is_write && device->raid_level != SA_RAID_0)		if (is_write && device->raid_level != SA_RAID_0)
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;

if(blk_cnt == 0)		if(blk_cnt == 0)
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;

lst_blk = fst_blk + blk_cnt - 1;		lst_blk = fst_blk + blk_cnt - 1;
raid_map = device->raid_map;		raid_map = device->raid_map;

/* Check for invalid block or wraparound. */		/* Check for invalid block or wraparound. */
if (lst_blk >= GET_LE64((uint8_t *)&raid_map->volume_blk_cnt) \|\|		if (lst_blk >= GET_LE64((uint8_t *)&raid_map->volume_blk_cnt) \|\|
lst_blk < fst_blk)		lst_blk < fst_blk)
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE;

data_disks_per_row = GET_LE16((uint8_t *)&raid_map->data_disks_per_row);		data_disks_per_row = GET_LE16((uint8_t *)&raid_map->data_disks_per_row);
strip_sz = GET_LE16((uint8_t *)(&raid_map->strip_size));		strip_sz = GET_LE16((uint8_t *)(&raid_map->strip_size));
layout_map_count = GET_LE16((uint8_t *)(&raid_map->layout_map_count));		layout_map_count = GET_LE16((uint8_t *)(&raid_map->layout_map_count));

/* Calculate stripe information for the request. */		/* Calculate stripe information for the request. */
blks_per_row = data_disks_per_row * strip_sz;		blks_per_row = data_disks_per_row * strip_sz;
if (!blks_per_row)		if (!blks_per_row)
return PQI_STATUS_FAILURE;		return PQI_STATUS_FAILURE; /Send the IO in raid path itself, not AIO or raidbypass/

/* use __udivdi3 ? */		/* use __udivdi3 ? */
fst_row = fst_blk / blks_per_row;		fst_row = fst_blk / blks_per_row;
lst_row = lst_blk / blks_per_row;		lst_row = lst_blk / blks_per_row;
fst_row_offset = (uint32_t)(fst_blk - (fst_row * blks_per_row));		fst_row_offset = (uint32_t)(fst_blk - (fst_row * blks_per_row));
lst_row_offset = (uint32_t)(lst_blk - (lst_row * blks_per_row));		lst_row_offset = (uint32_t)(lst_blk - (lst_row * blks_per_row));
fst_col = fst_row_offset / strip_sz;		fst_col = fst_row_offset / strip_sz;
lst_col = lst_row_offset / strip_sz;		lst_col = lst_row_offset / strip_sz;

▲ Show 20 Lines • Show All 108 Lines • ▼ Show 20 Lines	map_row =
GET_LE16((uint8_t *)(&raid_map->row_cnt));		GET_LE16((uint8_t *)(&raid_map->row_cnt));

map_idx = (fst_grp *		map_idx = (fst_grp *
(GET_LE16((uint8_t )(&raid_map->row_cnt))		(GET_LE16((uint8_t )(&raid_map->row_cnt))
total_disks_per_row)) +		total_disks_per_row)) +
(map_row * total_disks_per_row) + fst_col;		(map_row * total_disks_per_row) + fst_col;
}		}

if (map_idx >= RAID_MAP_MAX_ENTRIES)
return PQI_STATUS_FAILURE;

rcb->ioaccel_handle = raid_map->dev_data[map_idx].ioaccel_handle;		rcb->ioaccel_handle = raid_map->dev_data[map_idx].ioaccel_handle;
disk_block = GET_LE64((uint8_t *)(&raid_map->disk_starting_blk)) +		disk_block = GET_LE64((uint8_t *)(&raid_map->disk_starting_blk)) +
fst_row * strip_sz +		fst_row * strip_sz +
(fst_row_offset - fst_col * strip_sz);		(fst_row_offset - fst_col * strip_sz);
disk_blk_cnt = blk_cnt;		disk_blk_cnt = blk_cnt;

/* Handle differing logical/physical block sizes. */		/* Handle differing logical/physical block sizes. */
if (raid_map->phys_blk_shift) {		if (raid_map->phys_blk_shift) {
Show All 28 Lines	if (GET_LE16((uint8_t *)(&raid_map->flags)) &
pqisrc_set_enc_info(&rcb->enc_info, raid_map,		pqisrc_set_enc_info(&rcb->enc_info, raid_map,
fst_blk);		fst_blk);
rcb->encrypt_enable = true;		rcb->encrypt_enable = true;
} else {		} else {
rcb->encrypt_enable = false;		rcb->encrypt_enable = false;
}		}

rcb->cmdlen = cdb_length;		rcb->cmdlen = cdb_length;


DBG_FUNC("OUT");		DBG_FUNC("OUT");

return PQI_STATUS_SUCCESS;		return PQI_STATUS_SUCCESS;
}		}

/* Function used to submit a TMF to the adater */		/* Function used to submit an AIO TMF to the adapter
int pqisrc_send_tmf(pqisrc_softstate_t softs, pqi_scsi_dev_t devp,		* DEVICE_RESET is not supported.
rcb_t *rcb, int req_id, int tmf_type)		*/

		static int
		pqisrc_send_aio_tmf(pqisrc_softstate_t softs, pqi_scsi_dev_t devp,
		rcb_t rcb, rcb_t rcb_to_manage, int tmf_type)
{		{
int rval = PQI_STATUS_SUCCESS;		int rval = PQI_STATUS_SUCCESS;
pqi_tmf_req_t tmf_req;		pqi_aio_tmf_req_t tmf_req;
		ib_queue_t *op_ib_q = NULL;

memset(&tmf_req, 0, sizeof(pqi_tmf_req_t));		memset(&tmf_req, 0, sizeof(pqi_aio_tmf_req_t));

DBG_FUNC("IN");		DBG_FUNC("IN");

tmf_req.header.iu_type = PQI_REQUEST_IU_TASK_MANAGEMENT;		tmf_req.header.iu_type = PQI_REQUEST_IU_AIO_TASK_MANAGEMENT;
tmf_req.header.iu_length = sizeof(tmf_req) - sizeof(iu_header_t);		tmf_req.header.iu_length = sizeof(tmf_req) - sizeof(iu_header_t);
tmf_req.req_id = rcb->tag;		tmf_req.req_id = rcb->tag;
		tmf_req.error_idx = rcb->tag;
		tmf_req.nexus = devp->ioaccel_handle;
		//memcpy(tmf_req.lun, devp->scsi3addr, sizeof(tmf_req.lun));
		tmf_req.tmf = tmf_type;
		tmf_req.resp_qid = OS_GET_TMF_RESP_QID(softs, rcb);
		op_ib_q = &softs->op_aio_ib_q[0];

		if (tmf_type == SOP_TASK_MANAGEMENT_FUNCTION_ABORT_TASK) {
		tmf_req.req_id_to_manage = rcb_to_manage->tag;
		tmf_req.nexus = rcb_to_manage->ioaccel_handle;
		}

		DBG_INFO("tmf_req.header.iu_type : %x tmf_req.req_id_to_manage :%d \n",tmf_req.header.iu_type,tmf_req.req_id_to_manage);
		DBG_INFO("tmf_req.req_id : %d tmf_req.nexus : %x tmf_req.tmf %x QID : %d\n",tmf_req.req_id,tmf_req.nexus,tmf_req.tmf,op_ib_q->q_id);

		rcb->req_pending = true;
		/* Timedout tmf response goes here */
		rcb->error_cmp_callback = pqisrc_process_aio_response_error;

		rval = pqisrc_submit_cmnd(softs, op_ib_q, &tmf_req);
		if (rval != PQI_STATUS_SUCCESS) {
		DBG_ERR("Unable to submit command rval=%d\n", rval);
		return rval;
		}

		rval = pqisrc_wait_on_condition(softs, rcb, PQISRC_TMF_TIMEOUT);
		if (rval != PQI_STATUS_SUCCESS){
		DBG_ERR("Task Management tmf_type : %d timeout\n", tmf_type);
		rcb->status = rval;
		}

		if (rcb->status != REQUEST_SUCCESS) {
		DBG_ERR_BTL(devp, "Task Management failed tmf_type:%d "
		"stat:0x%x\n", tmf_type, rcb->status);
		rval = PQI_STATUS_FAILURE;
		}

		DBG_FUNC("OUT");
		return rval;
		}

		/* Function used to submit a Raid TMF to the adapter */
		static int
		pqisrc_send_raid_tmf(pqisrc_softstate_t softs, pqi_scsi_dev_t devp,
		rcb_t rcb, rcb_t rcb_to_manage, int tmf_type)
		{
		int rval = PQI_STATUS_SUCCESS;
		pqi_raid_tmf_req_t tmf_req;
		ib_queue_t *op_ib_q = NULL;

		memset(&tmf_req, 0, sizeof(pqi_raid_tmf_req_t));

		DBG_FUNC("IN");

		tmf_req.header.iu_type = PQI_REQUEST_IU_RAID_TASK_MANAGEMENT;
		tmf_req.header.iu_length = sizeof(tmf_req) - sizeof(iu_header_t);
		tmf_req.req_id = rcb->tag;

memcpy(tmf_req.lun, devp->scsi3addr, sizeof(tmf_req.lun));		memcpy(tmf_req.lun, devp->scsi3addr, sizeof(tmf_req.lun));
tmf_req.tmf = tmf_type;		tmf_req.tmf = tmf_type;
tmf_req.req_id_to_manage = req_id;
tmf_req.resp_qid = OS_GET_TMF_RESP_QID(softs, rcb);		tmf_req.resp_qid = OS_GET_TMF_RESP_QID(softs, rcb);
tmf_req.obq_id_to_manage = rcb->resp_qid;

		/* Decide the queue where the tmf request should be submitted */
		if (tmf_type == SOP_TASK_MANAGEMENT_FUNCTION_ABORT_TASK) {
		tmf_req.obq_id_to_manage = rcb_to_manage->resp_qid;
		tmf_req.req_id_to_manage = rcb_to_manage->tag;
		}

		if (softs->timeout_in_tmf &&
		tmf_type == SOP_TASK_MANAGEMENT_LUN_RESET) {
		/* OS_TMF_TIMEOUT_SEC - 1 to accomodate driver processing */
		tmf_req.timeout_in_sec = OS_TMF_TIMEOUT_SEC - 1;
		/* if OS tmf timeout is 0, set minimum value for timeout */
		if (!tmf_req.timeout_in_sec)
		tmf_req.timeout_in_sec = 1;
		}

		op_ib_q = &softs->op_raid_ib_q[0];
rcb->req_pending = true;		rcb->req_pending = true;
		/* Timedout tmf response goes here */
		rcb->error_cmp_callback = pqisrc_process_raid_response_error;

rval = pqisrc_submit_cmnd(softs,		rval = pqisrc_submit_cmnd(softs, op_ib_q, &tmf_req);
&softs->op_raid_ib_q[OS_GET_TMF_REQ_QINDEX(softs, rcb)], &tmf_req);
if (rval != PQI_STATUS_SUCCESS) {		if (rval != PQI_STATUS_SUCCESS) {
DBG_ERR("Unable to submit command rval=%d\n", rval);		DBG_ERR("Unable to submit command rval=%d\n", rval);
return rval;		return rval;
}		}

rval = pqisrc_wait_on_condition(softs, rcb);		rval = pqisrc_wait_on_condition(softs, rcb, PQISRC_TMF_TIMEOUT);
if (rval != PQI_STATUS_SUCCESS){		if (rval != PQI_STATUS_SUCCESS) {
DBG_ERR("Task Management tmf_type : %d timeout\n", tmf_type);		DBG_ERR("Task Management tmf_type : %d timeout\n", tmf_type);
rcb->status = REQUEST_FAILED;		rcb->status = rval;
}		}

if (rcb->status != REQUEST_SUCCESS) {		if (rcb->status != REQUEST_SUCCESS) {
DBG_ERR_BTL(devp, "Task Management failed tmf_type:%d "		DBG_NOTE("Task Management failed tmf_type:%d "
"stat:0x%x\n", tmf_type, rcb->status);		"stat:0x%x\n", tmf_type, rcb->status);
rval = PQI_STATUS_FAILURE;		rval = PQI_STATUS_FAILURE;
}		}

DBG_FUNC("OUT");		DBG_FUNC("OUT");
return rval;		return rval;
		}

		int
		pqisrc_send_tmf(pqisrc_softstate_t softs, pqi_scsi_dev_t devp,
		rcb_t rcb, rcb_t rcb_to_manage, int tmf_type)
		{
		int ret = PQI_STATUS_SUCCESS;

		DBG_FUNC("IN");

		if(!devp->is_physical_device) {
		if (tmf_type == SOP_TASK_MANAGEMENT_FUNCTION_ABORT_TASK) {
		if(rcb_to_manage->path == AIO_PATH) {
		if(devp->offload_enabled)
		ret = pqisrc_send_aio_tmf(softs, devp, rcb, rcb_to_manage, tmf_type);
		}
		else {
		DBG_INFO("TASK ABORT not supported in raid\n");
		ret = PQI_STATUS_FAILURE;
		}
		}
		else {
		ret = pqisrc_send_raid_tmf(softs, devp, rcb, rcb_to_manage, tmf_type);
		}
		} else {
		if (tmf_type == SOP_TASK_MANAGEMENT_FUNCTION_ABORT_TASK)
		ret = pqisrc_send_aio_tmf(softs, devp, rcb, rcb_to_manage, tmf_type);
		else
		ret = pqisrc_send_raid_tmf(softs, devp, rcb, rcb_to_manage, tmf_type);
		}

		DBG_FUNC("IN");

		return ret;
		}

		/*
		* Function used to build and send the vendor general request
		* Used for configuring PQI feature bits between firmware and driver
		*/
		int
		pqisrc_build_send_vendor_request(
		pqisrc_softstate_t *softs,
		pqi_vendor_general_request_t *request,
		raid_path_error_info_elem_t *error_info)
		{
		int ret = PQI_STATUS_SUCCESS;
		ib_queue_t *op_ib_q = &softs->op_raid_ib_q[PQI_DEFAULT_IB_QUEUE];
		ob_queue_t *ob_q = &softs->op_ob_q[PQI_DEFAULT_IB_QUEUE];

		rcb_t *rcb = NULL;

		uint16_t request_id = 0;

		/* Get the tag */
		request_id = pqisrc_get_tag(&softs->taglist);
		if (INVALID_ELEM == request_id) {
		DBG_ERR("Tag not available\n");
		ret = PQI_STATUS_FAILURE;
		goto err_notag;
		}

		((pqi_vendor_general_request_t *)request)->request_id = request_id;
		((pqi_vendor_general_request_t *)request)->response_queue_id = ob_q->q_id;

		rcb = &softs->rcb[request_id];

		rcb->req_pending = true;
		rcb->tag = request_id;

		ret = pqisrc_submit_cmnd(softs, op_ib_q, request);

		if (ret != PQI_STATUS_SUCCESS) {
		DBG_ERR("Unable to submit command\n");
		goto err_out;
		}

		ret = pqisrc_wait_on_condition(softs, rcb, PQISRC_CMD_TIMEOUT);
		if (ret != PQI_STATUS_SUCCESS) {
		DBG_ERR("Management request timed out!\n");
		goto err_out;
		}

		ret = rcb->status;
		if (ret) {
		ret = PQI_STATUS_FAILURE;
		if(error_info) {
		// TODO: config table err handling.
		}
		} else {
		if(error_info) {
		ret = PQI_STATUS_SUCCESS;
		memset(error_info, 0, sizeof(*error_info));
		}
		}

		os_reset_rcb(rcb);
		pqisrc_put_tag(&softs->taglist, ((pqi_vendor_general_request_t *)request)->request_id);
		DBG_FUNC("OUT\n");
		return ret;

		err_out:
		DBG_ERR("Vender general request submission failed.\n");
		os_reset_rcb(rcb);
		pqisrc_put_tag(&softs->taglist, ((pqi_vendor_general_request_t *)request)->request_id);
		err_notag:
		DBG_FUNC("FAILED \n");
		return ret;
		}

		/* return the path as ASCII-string */
		char *
		io_path_to_ascii(IO_PATH_T path)
		{
		switch (path)
		{
		case AIO_PATH: return "Aio";
		case RAID_PATH: return "Raid";
		default: return "Unknown";
		}
}		}