1 /* SPDX-License-Identifier: BSD-3-Clause
13 * RTE FSLMC Bus Interface
24 #include <sys/queue.h>
27 #include <linux/vfio.h>
29 #include <rte_debug.h>
30 #include <rte_interrupts.h>
33 #include <rte_tailq.h>
35 #include <fslmc_vfio.h>
37 #define FSLMC_OBJECT_MAX_LEN 32 /**< Length of each device on bus */
40 /** Device driver supports link state interrupt */
41 #define RTE_DPAA2_DRV_INTR_LSC 0x0008
43 /** Device driver supports IOVA as VA */
44 #define RTE_DPAA2_DRV_IOVA_AS_VA 0X0040
46 struct rte_dpaa2_driver;
48 /* DPAA2 Device and Driver lists for FSLMC bus */
49 TAILQ_HEAD(rte_fslmc_device_list, rte_dpaa2_device);
50 TAILQ_HEAD(rte_fslmc_driver_list, rte_dpaa2_driver);
52 extern struct rte_fslmc_bus rte_fslmc_bus;
54 enum rte_dpaa2_dev_type {
55 /* Devices backed by DPDK driver */
56 DPAA2_ETH, /**< DPNI type device*/
57 DPAA2_CRYPTO, /**< DPSECI type device */
58 DPAA2_CON, /**< DPCONC type device */
59 /* Devices not backed by a DPDK driver: DPIO, DPBP, DPCI, DPMCP */
60 DPAA2_BPOOL, /**< DPBP type device */
61 DPAA2_IO, /**< DPIO type device */
62 DPAA2_CI, /**< DPCI type device */
63 DPAA2_MPORTAL, /**< DPMCP type device */
64 /* Unknown device placeholder */
69 TAILQ_HEAD(rte_dpaa2_object_list, rte_dpaa2_object);
71 typedef int (*rte_dpaa2_obj_create_t)(int vdev_fd,
72 struct vfio_device_info *obj_info,
76 * A structure describing a DPAA2 object.
78 struct rte_dpaa2_object {
79 TAILQ_ENTRY(rte_dpaa2_object) next; /**< Next in list. */
80 const char *name; /**< Name of Object. */
81 enum rte_dpaa2_dev_type dev_type; /**< Type of device */
82 rte_dpaa2_obj_create_t create;
86 * A structure describing a DPAA2 device.
88 struct rte_dpaa2_device {
89 TAILQ_ENTRY(rte_dpaa2_device) next; /**< Next probed DPAA2 device. */
90 struct rte_device device; /**< Inherit core device */
92 struct rte_eth_dev *eth_dev; /**< ethernet device */
93 struct rte_cryptodev *cryptodev; /**< Crypto Device */
95 enum rte_dpaa2_dev_type dev_type; /**< Device Type */
96 uint16_t object_id; /**< DPAA2 Object ID */
97 struct rte_intr_handle intr_handle; /**< Interrupt handle */
98 struct rte_dpaa2_driver *driver; /**< Associated driver */
99 char name[FSLMC_OBJECT_MAX_LEN]; /**< DPAA2 Object name*/
102 typedef int (*rte_dpaa2_probe_t)(struct rte_dpaa2_driver *dpaa2_drv,
103 struct rte_dpaa2_device *dpaa2_dev);
104 typedef int (*rte_dpaa2_remove_t)(struct rte_dpaa2_device *dpaa2_dev);
107 * A structure describing a DPAA2 driver.
109 struct rte_dpaa2_driver {
110 TAILQ_ENTRY(rte_dpaa2_driver) next; /**< Next in list. */
111 struct rte_driver driver; /**< Inherit core driver. */
112 struct rte_fslmc_bus *fslmc_bus; /**< FSLMC bus reference */
113 uint32_t drv_flags; /**< Flags for controlling device.*/
114 enum rte_dpaa2_dev_type drv_type; /**< Driver Type */
115 rte_dpaa2_probe_t probe;
116 rte_dpaa2_remove_t remove;
122 struct rte_fslmc_bus {
123 struct rte_bus bus; /**< Generic Bus object */
124 struct rte_fslmc_device_list device_list;
125 /**< FSLMC DPAA2 Device list */
126 struct rte_fslmc_driver_list driver_list;
127 /**< FSLMC DPAA2 Driver list */
128 int device_count[DPAA2_DEVTYPE_MAX];
129 /**< Count of all devices scanned */
132 #define DPAA2_PORTAL_DEQUEUE_DEPTH 32
134 /* Create storage for dqrr entries per lcore */
135 struct dpaa2_portal_dqrr {
136 struct rte_mbuf *mbuf[DPAA2_PORTAL_DEQUEUE_DEPTH];
141 RTE_DECLARE_PER_LCORE(struct dpaa2_portal_dqrr, dpaa2_held_bufs);
143 #define DPAA2_PER_LCORE_DQRR_SIZE \
144 RTE_PER_LCORE(dpaa2_held_bufs).dqrr_size
145 #define DPAA2_PER_LCORE_DQRR_HELD \
146 RTE_PER_LCORE(dpaa2_held_bufs).dqrr_held
147 #define DPAA2_PER_LCORE_DQRR_MBUF(i) \
148 RTE_PER_LCORE(dpaa2_held_bufs).mbuf[i]
151 * Register a DPAA2 driver.
154 * A pointer to a rte_dpaa2_driver structure describing the driver
157 void rte_fslmc_driver_register(struct rte_dpaa2_driver *driver);
160 * Unregister a DPAA2 driver.
163 * A pointer to a rte_dpaa2_driver structure describing the driver
164 * to be unregistered.
166 void rte_fslmc_driver_unregister(struct rte_dpaa2_driver *driver);
168 /** Helper for DPAA2 device registration from driver (eth, crypto) instance */
169 #define RTE_PMD_REGISTER_DPAA2(nm, dpaa2_drv) \
170 RTE_INIT(dpaa2initfn_ ##nm); \
171 static void dpaa2initfn_ ##nm(void) \
173 (dpaa2_drv).driver.name = RTE_STR(nm);\
174 rte_fslmc_driver_register(&dpaa2_drv); \
176 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
179 * Register a DPAA2 MC Object driver.
182 * A pointer to a rte_dpaa_object structure describing the mc object
185 void rte_fslmc_object_register(struct rte_dpaa2_object *object);
188 * Count of a particular type of DPAA2 device scanned on the bus.
191 * Type of device as rte_dpaa2_dev_type enumerator
193 * >=0 for count; 0 indicates either no device of the said type scanned or
194 * invalid device type.
196 uint32_t rte_fslmc_get_device_count(enum rte_dpaa2_dev_type device_type);
198 /** Helper for DPAA2 object registration */
199 #define RTE_PMD_REGISTER_DPAA2_OBJECT(nm, dpaa2_obj) \
200 RTE_INIT(dpaa2objinitfn_ ##nm); \
201 static void dpaa2objinitfn_ ##nm(void) \
203 (dpaa2_obj).name = RTE_STR(nm);\
204 rte_fslmc_object_register(&dpaa2_obj); \
206 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
212 #endif /* _RTE_FSLMC_H_ */