429ebfa69b
A range of PASIDs are used as identifiers for the adapter contexts. These contexts may be destroyed and created randomly. Use an IDR to keep track of contexts that are in use and assign a unique identifier to new ones. Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com> Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
39 lines
1.3 KiB
C
39 lines
1.3 KiB
C
/*
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* CXL Flash Device Driver
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*
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* Written by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>, IBM Corporation
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* Uma Krishnan <ukrishn@linux.vnet.ibm.com>, IBM Corporation
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*
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* Copyright (C) 2018 IBM Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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/* OCXL hardware AFU associated with the host */
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struct ocxl_hw_afu {
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struct ocxlflash_context *ocxl_ctx; /* Host context */
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struct pci_dev *pdev; /* PCI device */
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struct device *dev; /* Generic device */
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struct ocxl_fn_config fcfg; /* DVSEC config of the function */
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struct ocxl_afu_config acfg; /* AFU configuration data */
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int fn_actag_base; /* Function acTag base */
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int fn_actag_enabled; /* Function acTag number enabled */
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int afu_actag_base; /* AFU acTag base */
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int afu_actag_enabled; /* AFU acTag number enabled */
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struct idr idr; /* IDR to manage contexts */
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int max_pasid; /* Maximum number of contexts */
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bool is_present; /* Function has AFUs defined */
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};
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struct ocxlflash_context {
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struct ocxl_hw_afu *hw_afu; /* HW AFU back pointer */
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bool master; /* Whether this is a master context */
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int pe; /* Process element */
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};
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