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

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sys/dev/smartpqi/smartpqi_cmd.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
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	/* $FreeBSD$ */			/* $FreeBSD$ */

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

	/*			/*
	* Function to submit the request to the adapter.			* Function to submit the request to the adapter.
	*/			*/

	int pqisrc_submit_cmnd(pqisrc_softstate_t *softs,			int
	ib_queue_t ib_q, void req)			pqisrc_submit_cmnd(pqisrc_softstate_t softs, ib_queue_t ib_q, void *req)
	{			{
	char *slot = NULL;			char *slot = NULL;
	uint32_t offset;			uint32_t offset;
	iu_header_t hdr = (iu_header_t )req;			iu_header_t hdr = (iu_header_t )req;
	uint32_t iu_len = hdr->iu_length + 4 ; /* header size */			uint32_t iu_len = hdr->iu_length + 4 ; /* header size */
	int i = 0;			int i = 0;
	DBG_FUNC("IN\n");			DBG_FUNC("IN\n");

	PQI_LOCK(&ib_q->lock);			PQI_LOCK(&ib_q->lock);

	/* Check queue full */			/* Check queue full */
	if ((ib_q->pi_local + 1) % ib_q->num_elem == *(ib_q->ci_virt_addr)) {			if ((ib_q->pi_local + 1) % ib_q->num_elem == *(ib_q->ci_virt_addr)) {
	DBG_WARN("OUT Q full\n");			DBG_WARN("OUT Q full\n");
	PQI_UNLOCK(&ib_q->lock);			PQI_UNLOCK(&ib_q->lock);
	return PQI_STATUS_QFULL;			return PQI_STATUS_QFULL;
	}			}

	/* Get the slot */			/* Get the slot */
	offset = ib_q->pi_local * ib_q->elem_size;			offset = ib_q->pi_local * ib_q->elem_size;
	slot = ib_q->array_virt_addr + offset;			slot = ib_q->array_virt_addr + offset;

	/* Copy the IU */			/* Copy the IU */
	memcpy(slot, req, iu_len);			memcpy(slot, req, iu_len);
	DBG_INFO("IU : \n");			DBG_INFO("IU : \n");
	for(i = 0; i< iu_len; i++)			for(i = 0; i< iu_len; i++)
	DBG_INFO(" IU [ %d ] : %x\n", i, ((unsigned char )(slot + i)));			DBG_INFO(" IU [ %d ] : %x\n", i, ((unsigned char )(slot + i)));

	/* Update the local PI */			/* Update the local PI */
	ib_q->pi_local = (ib_q->pi_local + 1) % ib_q->num_elem;			ib_q->pi_local = (ib_q->pi_local + 1) % ib_q->num_elem;
	DBG_INFO("ib_q->pi_local : %x IU size : %d\n",			DBG_INFO("ib_q->pi_local : %x IU size : %d\n",
	ib_q->pi_local, hdr->iu_length);			ib_q->pi_local, hdr->iu_length);
	DBG_INFO("*ib_q->ci_virt_addr: %x\n",			DBG_INFO("*ib_q->ci_virt_addr: %x\n",
	*(ib_q->ci_virt_addr));			*(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\n");			DBG_FUNC("OUT\n");
	return PQI_STATUS_SUCCESS;			return PQI_STATUS_SUCCESS;
	}			}