1043 lines
24 KiB
C
1043 lines
24 KiB
C
/*-
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* Copyright (c) 2017 Broadcom. All rights reserved.
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* The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* @file
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* Implementation of common BSD OS abstraction functions
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*/
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#include "ocs.h"
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static MALLOC_DEFINE(M_OCS, "OCS", "OneCore Storage data");
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#include <dev/pci/pcireg.h>
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#include <dev/pci/pcivar.h>
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#include <machine/bus.h>
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callout_func_t __ocs_callout;
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uint32_t
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ocs_config_read32(ocs_os_handle_t os, uint32_t reg)
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{
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return pci_read_config(os->dev, reg, 4);
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}
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uint16_t
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ocs_config_read16(ocs_os_handle_t os, uint32_t reg)
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{
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return pci_read_config(os->dev, reg, 2);
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}
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uint8_t
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ocs_config_read8(ocs_os_handle_t os, uint32_t reg)
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{
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return pci_read_config(os->dev, reg, 1);
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}
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void
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ocs_config_write8(ocs_os_handle_t os, uint32_t reg, uint8_t val)
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{
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return pci_write_config(os->dev, reg, val, 1);
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}
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void
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ocs_config_write16(ocs_os_handle_t os, uint32_t reg, uint16_t val)
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{
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return pci_write_config(os->dev, reg, val, 2);
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}
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void
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ocs_config_write32(ocs_os_handle_t os, uint32_t reg, uint32_t val)
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{
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return pci_write_config(os->dev, reg, val, 4);
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}
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/**
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* @ingroup os
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* @brief Read a 32bit PCI register
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*
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* The SLI documentation uses the term "register set" to describe one or more
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* PCI BARs which form a logical address. For example, a 64-bit address uses
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* two BARs, and thus constitute a register set.
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*
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* @param ocs Pointer to the driver's context
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* @param rset Register Set to use
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* @param off Offset from the base address of the Register Set
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*
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* @return register value
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*/
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uint32_t
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ocs_reg_read32(ocs_t *ocs, uint32_t rset, uint32_t off)
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{
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ocs_pci_reg_t *reg = NULL;
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reg = &ocs->reg[rset];
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return bus_space_read_4(reg->btag, reg->bhandle, off);
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}
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/**
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* @ingroup os
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* @brief Read a 16bit PCI register
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*
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* The SLI documentation uses the term "register set" to describe one or more
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* PCI BARs which form a logical address. For example, a 64-bit address uses
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* two BARs, and thus constitute a register set.
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*
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* @param ocs Pointer to the driver's context
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* @param rset Register Set to use
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* @param off Offset from the base address of the Register Set
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*
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* @return register value
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*/
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uint16_t
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ocs_reg_read16(ocs_t *ocs, uint32_t rset, uint32_t off)
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{
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ocs_pci_reg_t *reg = NULL;
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reg = &ocs->reg[rset];
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return bus_space_read_2(reg->btag, reg->bhandle, off);
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}
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/**
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* @ingroup os
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* @brief Read a 8bit PCI register
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*
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* The SLI documentation uses the term "register set" to describe one or more
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* PCI BARs which form a logical address. For example, a 64-bit address uses
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* two BARs, and thus constitute a register set.
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*
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* @param ocs Pointer to the driver's context
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* @param rset Register Set to use
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* @param off Offset from the base address of the Register Set
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*
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* @return register value
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*/
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uint8_t
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ocs_reg_read8(ocs_t *ocs, uint32_t rset, uint32_t off)
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{
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ocs_pci_reg_t *reg = NULL;
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reg = &ocs->reg[rset];
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return bus_space_read_1(reg->btag, reg->bhandle, off);
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}
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/**
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* @ingroup os
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* @brief Write a 32bit PCI register
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*
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* The SLI documentation uses the term "register set" to describe one or more
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* PCI BARs which form a logical address. For example, a 64-bit address uses
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* two BARs, and thus constitute a register set.
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*
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* @param ocs Pointer to the driver's context
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* @param rset Register Set to use
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* @param off Offset from the base address of the Register Set
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* @param val Value to write
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*
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* @return none
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*/
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void
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ocs_reg_write32(ocs_t *ocs, uint32_t rset, uint32_t off, uint32_t val)
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{
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ocs_pci_reg_t *reg = NULL;
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reg = &ocs->reg[rset];
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return bus_space_write_4(reg->btag, reg->bhandle, off, val);
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}
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/**
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* @ingroup os
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* @brief Write a 16-bit PCI register
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*
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* The SLI documentation uses the term "register set" to describe one or more
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* PCI BARs which form a logical address. For example, a 64-bit address uses
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* two BARs, and thus constitute a register set.
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*
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* @param ocs Pointer to the driver's context
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* @param rset Register Set to use
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* @param off Offset from the base address of the Register Set
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* @param val Value to write
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*
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* @return none
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*/
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void
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ocs_reg_write16(ocs_t *ocs, uint32_t rset, uint32_t off, uint16_t val)
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{
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ocs_pci_reg_t *reg = NULL;
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reg = &ocs->reg[rset];
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return bus_space_write_2(reg->btag, reg->bhandle, off, val);
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}
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/**
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* @ingroup os
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* @brief Write a 8-bit PCI register
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*
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* The SLI documentation uses the term "register set" to describe one or more
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* PCI BARs which form a logical address. For example, a 64-bit address uses
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* two BARs, and thus constitute a register set.
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*
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* @param ocs Pointer to the driver's context
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* @param rset Register Set to use
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* @param off Offset from the base address of the Register Set
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* @param val Value to write
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*
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* @return none
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*/
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void
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ocs_reg_write8(ocs_t *ocs, uint32_t rset, uint32_t off, uint8_t val)
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{
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ocs_pci_reg_t *reg = NULL;
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reg = &ocs->reg[rset];
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return bus_space_write_1(reg->btag, reg->bhandle, off, val);
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}
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/**
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* @ingroup os
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* @brief Allocate host memory
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*
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* @param os OS handle
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* @param size number of bytes to allocate
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* @param flags additional options
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*
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* @return pointer to allocated memory, NULL otherwise
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*/
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void *
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ocs_malloc(ocs_os_handle_t os, size_t size, int32_t flags)
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{
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if ((flags & OCS_M_NOWAIT) == 0) {
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flags |= M_WAITOK;
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}
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#ifndef OCS_DEBUG_MEMORY
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return malloc(size, M_OCS, flags);
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#else
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char nameb[80];
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long offset = 0;
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void *addr = malloc(size, M_OCS, flags);
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linker_ddb_search_symbol_name(__builtin_return_address(1), nameb, sizeof(nameb), &offset);
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printf("A: %p %ld @ %s+%#lx\n", addr, size, nameb, offset);
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return addr;
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#endif
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}
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/**
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* @ingroup os
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* @brief Free host memory
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*
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* @param os OS handle
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* @param addr pointer to memory
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* @param size bytes to free
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*
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* @note size ignored in BSD
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*/
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void
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ocs_free(ocs_os_handle_t os, void *addr, size_t size)
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{
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#ifndef OCS_DEBUG_MEMORY
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free(addr, M_OCS);
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#else
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printf("F: %p %ld\n", addr, size);
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free(addr, M_OCS);
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#endif
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}
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/**
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* @brief Callback function provided to bus_dmamap_load
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*
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* Function loads the physical / bus address into the DMA descriptor. The caller
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* can detect a mapping failure if a descriptor's phys element is zero.
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*
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* @param arg Argument provided to bus_dmamap_load is a ocs_dma_t
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* @param seg Array of DMA segment(s), each describing segment's address and length
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* @param nseg Number of elements in array
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* @param error Indicates success (0) or failure of mapping
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*/
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static void
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ocs_dma_load(void *arg, bus_dma_segment_t *seg, int nseg, int error)
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{
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ocs_dma_t *dma = arg;
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if (error) {
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printf("%s: error=%d\n", __func__, error);
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dma->phys = 0;
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} else {
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dma->phys = seg->ds_addr;
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}
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}
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/**
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* @ingroup os
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* @brief Free a DMA capable block of memory
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*
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* @param os Device abstraction
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* @param dma DMA descriptor for memory to be freed
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*
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* @return 0 if memory is de-allocated, -1 otherwise
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*/
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int32_t
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ocs_dma_free(ocs_os_handle_t os, ocs_dma_t *dma)
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{
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struct ocs_softc *ocs = os;
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if (!dma) {
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device_printf(ocs->dev, "%s: bad parameter(s) dma=%p\n", __func__, dma);
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return -1;
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}
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if (dma->size == 0) {
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return 0;
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}
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if (dma->map) {
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bus_dmamap_sync(dma->tag, dma->map, BUS_DMASYNC_POSTREAD |
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BUS_DMASYNC_POSTWRITE);
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bus_dmamap_unload(dma->tag, dma->map);
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}
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if (dma->virt) {
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bus_dmamem_free(dma->tag, dma->virt, dma->map);
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bus_dmamap_destroy(dma->tag, dma->map);
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}
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bus_dma_tag_destroy(dma->tag);
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bzero(dma, sizeof(ocs_dma_t));
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return 0;
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}
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/**
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* @ingroup os
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* @brief Allocate a DMA capable block of memory
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*
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* @param os Device abstraction
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* @param dma DMA descriptor containing results of memory allocation
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* @param size Size in bytes of desired allocation
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* @param align Alignment in bytes
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*
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* @return 0 on success, ENOMEM otherwise
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*/
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int32_t
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ocs_dma_alloc(ocs_os_handle_t os, ocs_dma_t *dma, size_t size, size_t align)
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{
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struct ocs_softc *ocs = os;
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if (!dma || !size) {
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device_printf(ocs->dev, "%s bad parameter(s) dma=%p size=%zd\n",
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__func__, dma, size);
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return ENOMEM;
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}
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bzero(dma, sizeof(ocs_dma_t));
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/* create a "tag" that describes the desired memory allocation */
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if (bus_dma_tag_create(ocs->dmat, align, 0, BUS_SPACE_MAXADDR,
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BUS_SPACE_MAXADDR, NULL, NULL,
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size, 1, size, 0, NULL, NULL, &dma->tag)) {
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device_printf(ocs->dev, "DMA tag allocation failed\n");
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return ENOMEM;
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}
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dma->size = size;
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/* allocate the memory */
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if (bus_dmamem_alloc(dma->tag, &dma->virt, BUS_DMA_NOWAIT | BUS_DMA_COHERENT,
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&dma->map)) {
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device_printf(ocs->dev, "DMA memory allocation failed s=%zd a=%zd\n", size, align);
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ocs_dma_free(ocs, dma);
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return ENOMEM;
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}
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dma->alloc = dma->virt;
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/* map virtual address to device visible address */
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if (bus_dmamap_load(dma->tag, dma->map, dma->virt, dma->size, ocs_dma_load,
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dma, 0)) {
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device_printf(ocs->dev, "DMA memory load failed\n");
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ocs_dma_free(ocs, dma);
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return ENOMEM;
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}
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/* if the DMA map load callback fails, it sets the physical address to zero */
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if (0 == dma->phys) {
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device_printf(ocs->dev, "ocs_dma_load failed\n");
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ocs_dma_free(ocs, dma);
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return ENOMEM;
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}
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return 0;
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}
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/**
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* @ingroup os
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* @brief Synchronize the DMA buffer memory
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*
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* Ensures memory coherency between the CPU and device
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*
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* @param dma DMA descriptor of memory to synchronize
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* @param flags Describes direction of synchronization
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* See BUS_DMA(9) for details
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* - BUS_DMASYNC_PREWRITE
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* - BUS_DMASYNC_POSTREAD
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*/
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void
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ocs_dma_sync(ocs_dma_t *dma, uint32_t flags)
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{
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bus_dmamap_sync(dma->tag, dma->map, flags);
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}
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int32_t
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ocs_dma_copy_in(ocs_dma_t *dma, void *buffer, uint32_t buffer_length)
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{
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if (!dma)
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return -1;
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if (!buffer)
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return -1;
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if (buffer_length == 0)
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return 0;
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if (buffer_length > dma->size)
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buffer_length = dma->size;
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ocs_memcpy(dma->virt, buffer, buffer_length);
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dma->len = buffer_length;
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return buffer_length;
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}
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int32_t
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ocs_dma_copy_out(ocs_dma_t *dma, void *buffer, uint32_t buffer_length)
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{
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if (!dma)
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return -1;
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if (!buffer)
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return -1;
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if (buffer_length == 0)
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return 0;
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if (buffer_length > dma->len)
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buffer_length = dma->len;
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ocs_memcpy(buffer, dma->virt, buffer_length);
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return buffer_length;
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}
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/**
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* @ingroup os
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* @brief Initialize a lock
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*
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* @param lock lock to initialize
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* @param name string identifier for the lock
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*/
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void
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ocs_lock_init(void *os, ocs_lock_t *lock, const char *name, ...)
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{
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va_list ap;
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va_start(ap, name);
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ocs_vsnprintf(lock->name, MAX_LOCK_DESC_LEN, name, ap);
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va_end(ap);
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mtx_init(&lock->lock, lock->name, NULL, MTX_DEF);
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}
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/**
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* @brief Allocate a bit map
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*
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* For BSD, this is a simple character string
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*
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* @param n_bits number of bits in bit map
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*
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* @return pointer to the bit map, NULL on error
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*/
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ocs_bitmap_t *
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ocs_bitmap_alloc(uint32_t n_bits)
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{
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return malloc(bitstr_size(n_bits), M_OCS, M_ZERO | M_NOWAIT);
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}
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/**
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* @brief Free a bit map
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*
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* @param bitmap pointer to previously allocated bit map
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*/
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void
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ocs_bitmap_free(ocs_bitmap_t *bitmap)
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{
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free(bitmap, M_OCS);
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}
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/**
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* @brief find next unset bit and set it
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*
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* @param bitmap bit map to search
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* @param n_bits number of bits in map
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*
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* @return bit position or -1 if map is full
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*/
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int32_t
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ocs_bitmap_find(ocs_bitmap_t *bitmap, uint32_t n_bits)
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{
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int32_t position = -1;
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bit_ffc(bitmap, n_bits, &position);
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if (-1 != position) {
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bit_set(bitmap, position);
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}
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return position;
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}
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/**
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* @brief search for next (un)set bit
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*
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* @param bitmap bit map to search
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* @param set search for a set or unset bit
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* @param n_bits number of bits in map
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*
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* @return bit position or -1
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*/
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int32_t
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ocs_bitmap_search(ocs_bitmap_t *bitmap, uint8_t set, uint32_t n_bits)
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{
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int32_t position;
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if (!bitmap) {
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return -1;
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|
}
|
|
|
|
if (set) {
|
|
bit_ffs(bitmap, n_bits, &position);
|
|
} else {
|
|
bit_ffc(bitmap, n_bits, &position);
|
|
}
|
|
|
|
return position;
|
|
}
|
|
|
|
/**
|
|
* @brief clear the specified bit
|
|
*
|
|
* @param bitmap pointer to bit map
|
|
* @param bit bit number to clear
|
|
*/
|
|
void
|
|
ocs_bitmap_clear(ocs_bitmap_t *bitmap, uint32_t bit)
|
|
{
|
|
bit_clear(bitmap, bit);
|
|
}
|
|
|
|
void _ocs_log(ocs_t *ocs, const char *func_name, int line, const char *fmt, ...)
|
|
{
|
|
va_list ap;
|
|
char buf[256];
|
|
char *p = buf;
|
|
|
|
va_start(ap, fmt);
|
|
|
|
/* TODO: Add Current PID info here. */
|
|
|
|
p += snprintf(p, sizeof(buf) - (p - buf), "%s: ", DRV_NAME);
|
|
p += snprintf(p, sizeof(buf) - (p - buf), "%s:", func_name);
|
|
p += snprintf(p, sizeof(buf) - (p - buf), "%i:", line);
|
|
p += snprintf(p, sizeof(buf) - (p - buf), "%s:", (ocs != NULL) ? device_get_nameunit(ocs->dev) : "");
|
|
p += vsnprintf(p, sizeof(buf) - (p - buf), fmt, ap);
|
|
|
|
va_end(ap);
|
|
|
|
printf("%s", buf);
|
|
}
|
|
|
|
/**
|
|
* @brief Common thread call function
|
|
*
|
|
* This is the common function called whenever a thread instantiated by ocs_thread_create() is started.
|
|
* It captures the return value from the actual thread function and stashes it in the thread object, to
|
|
* be later retrieved by ocs_thread_get_retval(), and calls kthread_exit(), the proscribed method to terminate
|
|
* a thread.
|
|
*
|
|
* @param arg a pointer to the thread object
|
|
*
|
|
* @return none
|
|
*/
|
|
|
|
static void
|
|
ocs_thread_call_fctn(void *arg)
|
|
{
|
|
ocs_thread_t *thread = arg;
|
|
thread->retval = (*thread->fctn)(thread->arg);
|
|
ocs_free(NULL, thread->name, ocs_strlen(thread->name+1));
|
|
kthread_exit();
|
|
}
|
|
|
|
/**
|
|
* @brief Create a kernel thread
|
|
*
|
|
* Creates a kernel thread and optionally starts it. If the thread is not immediately
|
|
* started, ocs_thread_start() should be called at some later point.
|
|
*
|
|
* @param os OS handle
|
|
* @param thread pointer to thread object
|
|
* @param fctn function for thread to be begin executing
|
|
* @param name text name to identify thread
|
|
* @param arg application specific argument passed to thread function
|
|
* @param start start option, OCS_THREAD_RUN will start the thread immediately,
|
|
* OCS_THREAD_CREATE will create but not start the thread
|
|
*
|
|
* @return returns 0 for success, a negative error code value for failure.
|
|
*/
|
|
|
|
int32_t
|
|
ocs_thread_create(ocs_os_handle_t os, ocs_thread_t *thread, ocs_thread_fctn fctn, const char *name, void *arg, ocs_thread_start_e start)
|
|
{
|
|
int32_t rc = 0;
|
|
|
|
ocs_memset(thread, 0, sizeof(*thread));
|
|
|
|
thread->fctn = fctn;
|
|
thread->name = ocs_strdup(name);
|
|
if (thread->name == NULL) {
|
|
thread->name = "unknown";
|
|
}
|
|
thread->arg = arg;
|
|
|
|
ocs_atomic_set(&thread->terminate, 0);
|
|
|
|
rc = kthread_add(ocs_thread_call_fctn, thread, NULL, &thread->tcb, (start == OCS_THREAD_CREATE) ? RFSTOPPED : 0,
|
|
OCS_THREAD_DEFAULT_STACK_SIZE_PAGES, "%s", name);
|
|
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* @brief Start a thread
|
|
*
|
|
* Starts a thread that was created with OCS_THREAD_CREATE rather than OCS_THREAD_RUN
|
|
*
|
|
* @param thread pointer to thread object
|
|
*
|
|
* @return returns 0 for success, a negative error code value for failure.
|
|
*/
|
|
|
|
int32_t ocs_thread_start(ocs_thread_t *thread)
|
|
{
|
|
|
|
thread_lock(thread->tcb);
|
|
sched_add(thread->tcb, SRQ_BORING);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief return thread argument
|
|
*
|
|
* Returns a pointer to the thread's application specific argument
|
|
*
|
|
* @param mythread pointer to the thread object
|
|
*
|
|
* @return pointer to application specific argument
|
|
*/
|
|
|
|
void *ocs_thread_get_arg(ocs_thread_t *mythread)
|
|
{
|
|
return mythread->arg;
|
|
}
|
|
|
|
/**
|
|
* @brief Request thread stop
|
|
*
|
|
* A stop request is made to the thread. This is a voluntary call, the thread needs
|
|
* to periodically query its terminate request using ocs_thread_terminate_requested()
|
|
*
|
|
* @param thread pointer to thread object
|
|
*
|
|
* @return returns 0 for success, a negative error code value for failure.
|
|
*/
|
|
|
|
int32_t
|
|
ocs_thread_terminate(ocs_thread_t *thread)
|
|
{
|
|
ocs_atomic_set(&thread->terminate, 1);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @brief See if a terminate request has been made
|
|
*
|
|
* Check to see if a stop request has been made to the current thread. This
|
|
* function would be used by a thread to see if it should terminate.
|
|
*
|
|
* @return returns non-zero if a stop has been requested
|
|
*/
|
|
|
|
int32_t ocs_thread_terminate_requested(ocs_thread_t *thread)
|
|
{
|
|
return ocs_atomic_read(&thread->terminate);
|
|
}
|
|
|
|
/**
|
|
* @brief Retrieve threads return value
|
|
*
|
|
* After a thread has terminated, it's return value may be retrieved with this function.
|
|
*
|
|
* @param thread pointer to thread object
|
|
*
|
|
* @return return value from thread function
|
|
*/
|
|
|
|
int32_t
|
|
ocs_thread_get_retval(ocs_thread_t *thread)
|
|
{
|
|
return thread->retval;
|
|
}
|
|
|
|
/**
|
|
* @brief Request that the currently running thread yield
|
|
*
|
|
* The currently running thread yields to the scheduler
|
|
*
|
|
* @param thread pointer to thread (ignored)
|
|
*
|
|
* @return none
|
|
*/
|
|
|
|
void
|
|
ocs_thread_yield(ocs_thread_t *thread) {
|
|
pause("thread yield", 1);
|
|
}
|
|
|
|
ocs_thread_t *
|
|
ocs_thread_self(void)
|
|
{
|
|
ocs_printf(">>> %s not implemented\n", __func__);
|
|
ocs_abort();
|
|
}
|
|
|
|
int32_t
|
|
ocs_thread_setcpu(ocs_thread_t *thread, uint32_t cpu)
|
|
{
|
|
ocs_printf(">>> %s not implemented\n", __func__);
|
|
return -1;
|
|
}
|
|
|
|
int32_t
|
|
ocs_thread_getcpu(void)
|
|
{
|
|
return curcpu;
|
|
}
|
|
|
|
int
|
|
ocs_sem_init(ocs_sem_t *sem, int val, const char *name, ...)
|
|
{
|
|
va_list ap;
|
|
|
|
va_start(ap, name);
|
|
ocs_vsnprintf(sem->name, sizeof(sem->name), name, ap);
|
|
va_end(ap);
|
|
|
|
sema_init(&sem->sem, val, sem->name);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @ingroup os
|
|
* @brief Copy user arguments in to kernel space for an ioctl
|
|
* @par Description
|
|
* This function is called at the beginning of an ioctl function
|
|
* to copy the ioctl argument from user space to kernel space.
|
|
*
|
|
* BSD handles this for us - arg is already in kernel space,
|
|
* so we just return it.
|
|
*
|
|
* @param os OS handle
|
|
* @param arg The argument passed to the ioctl function
|
|
* @param size The size of the structure pointed to by arg
|
|
*
|
|
* @return A pointer to a kernel space copy of the argument on
|
|
* success; NULL on failure
|
|
*/
|
|
void *ocs_ioctl_preprocess(ocs_os_handle_t os, void *arg, size_t size)
|
|
{
|
|
return arg;
|
|
}
|
|
|
|
/**
|
|
* @ingroup os
|
|
* @brief Copy results of an ioctl back to user space
|
|
* @par Description
|
|
* This function is called at the end of ioctl processing to
|
|
* copy the argument back to user space.
|
|
*
|
|
* BSD handles this for us.
|
|
*
|
|
* @param os OS handle
|
|
* @param arg The argument passed to the ioctl function
|
|
* @param kern_ptr A pointer to the kernel space copy of the
|
|
* argument
|
|
* @param size The size of the structure pointed to by arg.
|
|
*
|
|
* @return Returns 0.
|
|
*/
|
|
int32_t ocs_ioctl_postprocess(ocs_os_handle_t os, void *arg, void *kern_ptr, size_t size)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* @ingroup os
|
|
* @brief Free memory allocated by ocs_ioctl_preprocess
|
|
* @par Description
|
|
* This function is called in the event of an error in ioctl
|
|
* processing. For operating environments where ocs_ioctlpreprocess
|
|
* allocates memory, this call frees the memory without copying
|
|
* results back to user space.
|
|
*
|
|
* For BSD, because no memory was allocated in ocs_ioctl_preprocess,
|
|
* nothing needs to be done here.
|
|
*
|
|
* @param os OS handle
|
|
* @param kern_ptr A pointer to the kernel space copy of the
|
|
* argument
|
|
* @param size The size of the structure pointed to by arg.
|
|
*
|
|
* @return Returns nothing.
|
|
*/
|
|
void ocs_ioctl_free(ocs_os_handle_t os, void *kern_ptr, size_t size)
|
|
{
|
|
return;
|
|
}
|
|
|
|
void ocs_intr_disable(ocs_os_handle_t os)
|
|
{
|
|
}
|
|
|
|
void ocs_intr_enable(ocs_os_handle_t os)
|
|
{
|
|
}
|
|
|
|
void ocs_print_stack(void)
|
|
{
|
|
#if defined(STACK)
|
|
struct stack st;
|
|
|
|
stack_save(&st);
|
|
stack_print(&st);
|
|
#endif
|
|
}
|
|
|
|
void ocs_abort(void)
|
|
{
|
|
panic(">>> abort/panic\n");
|
|
}
|
|
|
|
const char *
|
|
ocs_pci_model(uint16_t vendor, uint16_t device)
|
|
{
|
|
switch (device) {
|
|
case PCI_PRODUCT_EMULEX_OCE16002: return "OCE16002";
|
|
case PCI_PRODUCT_EMULEX_OCE1600_VF: return "OCE1600_VF";
|
|
case PCI_PRODUCT_EMULEX_OCE50102: return "OCE50102";
|
|
case PCI_PRODUCT_EMULEX_OCE50102_VF: return "OCE50102_VR";
|
|
default:
|
|
break;
|
|
}
|
|
|
|
return "unknown";
|
|
}
|
|
|
|
void
|
|
ocs_get_bus_dev_func(ocs_t *ocs, uint8_t* bus, uint8_t* dev, uint8_t* func)
|
|
{
|
|
*bus = pci_get_bus(ocs->dev);
|
|
*dev = pci_get_slot(ocs->dev);
|
|
*func= pci_get_function(ocs->dev);
|
|
}
|
|
|
|
/**
|
|
* @brief return CPU information
|
|
*
|
|
* This function populates the ocs_cpuinfo_t buffer with CPU information
|
|
*
|
|
* @param cpuinfo pointer to ocs_cpuinfo_t buffer
|
|
*
|
|
* @return returns 0 for success, a negative error code value for failure.
|
|
*/
|
|
extern int mp_ncpus;
|
|
int32_t
|
|
ocs_get_cpuinfo(ocs_cpuinfo_t *cpuinfo)
|
|
{
|
|
cpuinfo->num_cpus = mp_ncpus;
|
|
return 0;
|
|
}
|
|
|
|
uint32_t
|
|
ocs_get_num_cpus(void)
|
|
{
|
|
static ocs_cpuinfo_t cpuinfo;
|
|
|
|
if (cpuinfo.num_cpus == 0) {
|
|
ocs_get_cpuinfo(&cpuinfo);
|
|
}
|
|
return cpuinfo.num_cpus;
|
|
}
|
|
|
|
void
|
|
__ocs_callout(void *t)
|
|
{
|
|
ocs_timer_t *timer = t;
|
|
|
|
if (callout_pending(&timer->callout)) {
|
|
/* Callout was reset */
|
|
return;
|
|
}
|
|
|
|
if (!callout_active(&timer->callout)) {
|
|
/* Callout was stopped */
|
|
return;
|
|
}
|
|
|
|
callout_deactivate(&timer->callout);
|
|
|
|
if (timer->func) {
|
|
timer->func(timer->data);
|
|
}
|
|
}
|
|
|
|
int32_t
|
|
ocs_setup_timer(ocs_os_handle_t os, ocs_timer_t *timer, void(*func)(void *arg), void *data, uint32_t timeout_ms)
|
|
{
|
|
struct timeval tv;
|
|
int hz;
|
|
|
|
if (timer == NULL) {
|
|
ocs_log_err(NULL, "bad parameter\n");
|
|
return -1;
|
|
}
|
|
|
|
if (!mtx_initialized(&timer->lock)) {
|
|
mtx_init(&timer->lock, "ocs_timer", NULL, MTX_DEF);
|
|
}
|
|
|
|
callout_init_mtx(&timer->callout, &timer->lock, 0);
|
|
|
|
timer->func = func;
|
|
timer->data = data;
|
|
|
|
tv.tv_sec = timeout_ms / 1000;
|
|
tv.tv_usec = (timeout_ms % 1000) * 1000;
|
|
|
|
hz = tvtohz(&tv);
|
|
if (hz < 0)
|
|
hz = INT32_MAX;
|
|
if (hz == 0)
|
|
hz = 1;
|
|
|
|
mtx_lock(&timer->lock);
|
|
callout_reset(&timer->callout, hz, __ocs_callout, timer);
|
|
mtx_unlock(&timer->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
ocs_mod_timer(ocs_timer_t *timer, uint32_t timeout_ms)
|
|
{
|
|
struct timeval tv;
|
|
int hz;
|
|
|
|
if (timer == NULL) {
|
|
ocs_log_err(NULL, "bad parameter\n");
|
|
return -1;
|
|
}
|
|
|
|
tv.tv_sec = timeout_ms / 1000;
|
|
tv.tv_usec = (timeout_ms % 1000) * 1000;
|
|
|
|
hz = tvtohz(&tv);
|
|
if (hz < 0)
|
|
hz = INT32_MAX;
|
|
if (hz == 0)
|
|
hz = 1;
|
|
|
|
mtx_lock(&timer->lock);
|
|
callout_reset(&timer->callout, hz, __ocs_callout, timer);
|
|
mtx_unlock(&timer->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int32_t
|
|
ocs_timer_pending(ocs_timer_t *timer)
|
|
{
|
|
return callout_active(&timer->callout);
|
|
}
|
|
|
|
int32_t
|
|
ocs_del_timer(ocs_timer_t *timer)
|
|
{
|
|
|
|
mtx_lock(&timer->lock);
|
|
callout_stop(&timer->callout);
|
|
mtx_unlock(&timer->lock);
|
|
|
|
return 0;
|
|
}
|
|
|
|
char *
|
|
ocs_strdup(const char *s)
|
|
{
|
|
uint32_t l = strlen(s);
|
|
char *d;
|
|
|
|
d = ocs_malloc(NULL, l+1, OCS_M_NOWAIT);
|
|
if (d != NULL) {
|
|
ocs_strcpy(d, s);
|
|
}
|
|
return d;
|
|
}
|
|
|
|
void
|
|
_ocs_assert(const char *cond, const char *filename, int linenum)
|
|
{
|
|
const char *fn = strrchr(__FILE__, '/');
|
|
|
|
ocs_log_err(NULL, "%s(%d) assertion (%s) failed\n", (fn ? fn + 1 : filename), linenum, cond);
|
|
ocs_print_stack();
|
|
ocs_save_ddump_all(OCS_DDUMP_FLAGS_WQES|OCS_DDUMP_FLAGS_CQES|OCS_DDUMP_FLAGS_MQES, -1, TRUE);
|
|
}
|