ceph/src/spdk/dpdk/drivers/common/qat/qat_device.h

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2018 Intel Corporation
   3  */
   4 #ifndef _QAT_DEVICE_H_
   5 #define _QAT_DEVICE_H_
   6
   7 #include <rte_bus_pci.h>
   8
   9 #include "qat_common.h"
  10 #include "qat_logs.h"
  11 #include "adf_transport_access_macros.h"
  12 #include "qat_qp.h"
  13
  14 #define QAT_DETACHED  (0)
  15 #define QAT_ATTACHED  (1)
  16
  17 #define QAT_DEV_NAME_MAX_LEN    64
  18
  19 enum qat_comp_num_im_buffers {
  20         QAT_NUM_INTERM_BUFS_GEN1 = 12,
  21         QAT_NUM_INTERM_BUFS_GEN2 = 20,
  22         QAT_NUM_INTERM_BUFS_GEN3 = 20
  23 };
  24
  25 /*
  26  * This struct holds all the data about a QAT pci device
  27  * including data about all services it supports.
  28  * It contains
  29  *  - hw_data
  30  *  - config data
  31  *  - runtime data
  32  */
  33 struct qat_sym_dev_private;
  34 struct qat_asym_dev_private;
  35 struct qat_comp_dev_private;
  36
  37 struct qat_pci_device {
  38
  39         /* Data used by all services */
  40         char name[QAT_DEV_NAME_MAX_LEN];
  41         /**< Name of qat pci device */
  42         uint8_t qat_dev_id;
  43         /**< Device instance for this qat pci device */
  44         struct rte_pci_device *pci_dev;
  45         /**< PCI information. */
  46         enum qat_device_gen qat_dev_gen;
  47         /**< QAT device generation */
  48         rte_spinlock_t arb_csr_lock;
  49         /**< lock to protect accesses to the arbiter CSR */
  50         __extension__
  51         uint8_t attached : 1;
  52         /**< Flag indicating the device is attached */
  53
  54         struct qat_qp *qps_in_use[QAT_MAX_SERVICES][ADF_MAX_QPS_ON_ANY_SERVICE];
  55         /**< links to qps set up for each service, index same as on API */
  56
  57         /* Data relating to symmetric crypto service */
  58         struct qat_sym_dev_private *sym_dev;
  59         /**< link back to cryptodev private data */
  60         struct rte_device sym_rte_dev;
  61         /**< This represents the crypto sym subset of this pci device.
  62          * Register with this rather than with the one in
  63          * pci_dev so that its driver can have a crypto-specific name
  64          */
  65
  66         /* Data relating to asymmetric crypto service */
  67         struct qat_asym_dev_private *asym_dev;
  68         /**< link back to cryptodev private data */
  69         struct rte_device asym_rte_dev;
  70         /**< This represents the crypto asym subset of this pci device.
  71          * Register with this rather than with the one in
  72          * pci_dev so that its driver can have a crypto-specific name
  73          */
  74
  75         /* Data relating to compression service */
  76         struct qat_comp_dev_private *comp_dev;
  77         /**< link back to compressdev private data */
  78         struct rte_device comp_rte_dev;
  79         /**< This represents the compression subset of this pci device.
  80          * Register with this rather than with the one in
  81          * pci_dev so that its driver can have a compression-specific name
  82          */
  83
  84         /* Data relating to asymmetric crypto service */
  85
  86 };
  87
  88 struct qat_gen_hw_data {
  89         enum qat_device_gen dev_gen;
  90         const struct qat_qp_hw_data (*qp_hw_data)[ADF_MAX_QPS_ON_ANY_SERVICE];
  91         enum qat_comp_num_im_buffers comp_num_im_bufs_required;
  92 };
  93
  94 extern struct qat_gen_hw_data qat_gen_config[];
  95
  96 struct qat_pci_device *
  97 qat_pci_device_allocate(struct rte_pci_device *pci_dev);
  98
  99 int
 100 qat_pci_device_release(struct rte_pci_device *pci_dev);
 101
 102 struct qat_pci_device *
 103 qat_get_qat_dev_from_pci_dev(struct rte_pci_device *pci_dev);
 104
 105 /* declaration needed for weak functions */
 106 int
 107 qat_sym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused);
 108
 109 int
 110 qat_asym_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused);
 111
 112 int
 113 qat_sym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused);
 114
 115 int
 116 qat_asym_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused);
 117
 118 int
 119 qat_comp_dev_create(struct qat_pci_device *qat_pci_dev __rte_unused);
 120
 121 int
 122 qat_comp_dev_destroy(struct qat_pci_device *qat_pci_dev __rte_unused);
 123
 124 #endif /* _QAT_DEVICE_H_ */