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>
34 #include <rte_devargs.h>
36 #include <fslmc_vfio.h>
38 #define FSLMC_OBJECT_MAX_LEN 32 /**< Length of each device on bus */
41 /** Device driver supports link state interrupt */
42 #define RTE_DPAA2_DRV_INTR_LSC 0x0008
44 /** Device driver supports IOVA as VA */
45 #define RTE_DPAA2_DRV_IOVA_AS_VA 0X0040
47 struct rte_dpaa2_driver;
49 /* DPAA2 Device and Driver lists for FSLMC bus */
50 TAILQ_HEAD(rte_fslmc_device_list, rte_dpaa2_device);
51 TAILQ_HEAD(rte_fslmc_driver_list, rte_dpaa2_driver);
53 #define RTE_DEV_TO_FSLMC_CONST(ptr) \
54 container_of(ptr, const struct rte_dpaa2_device, device)
56 extern struct rte_fslmc_bus rte_fslmc_bus;
58 enum rte_dpaa2_dev_type {
59 /* Devices backed by DPDK driver */
60 DPAA2_ETH, /**< DPNI type device*/
61 DPAA2_CRYPTO, /**< DPSECI type device */
62 DPAA2_CON, /**< DPCONC type device */
63 /* Devices not backed by a DPDK driver: DPIO, DPBP, DPCI, DPMCP */
64 DPAA2_BPOOL, /**< DPBP type device */
65 DPAA2_IO, /**< DPIO type device */
66 DPAA2_CI, /**< DPCI type device */
67 DPAA2_MPORTAL, /**< DPMCP type device */
68 DPAA2_QDMA, /**< DPDMAI type device */
69 DPAA2_MUX, /**< DPDMUX type device */
70 /* Unknown device placeholder */
75 TAILQ_HEAD(rte_dpaa2_object_list, rte_dpaa2_object);
77 typedef int (*rte_dpaa2_obj_create_t)(int vdev_fd,
78 struct vfio_device_info *obj_info,
82 * A structure describing a DPAA2 object.
84 struct rte_dpaa2_object {
85 TAILQ_ENTRY(rte_dpaa2_object) next; /**< Next in list. */
86 const char *name; /**< Name of Object. */
87 enum rte_dpaa2_dev_type dev_type; /**< Type of device */
88 rte_dpaa2_obj_create_t create;
92 * A structure describing a DPAA2 device.
94 struct rte_dpaa2_device {
95 TAILQ_ENTRY(rte_dpaa2_device) next; /**< Next probed DPAA2 device. */
96 struct rte_device device; /**< Inherit core device */
98 struct rte_eth_dev *eth_dev; /**< ethernet device */
99 struct rte_cryptodev *cryptodev; /**< Crypto Device */
100 struct rte_rawdev *rawdev; /**< Raw Device */
102 enum rte_dpaa2_dev_type dev_type; /**< Device Type */
103 uint16_t object_id; /**< DPAA2 Object ID */
104 struct rte_intr_handle intr_handle; /**< Interrupt handle */
105 struct rte_dpaa2_driver *driver; /**< Associated driver */
106 char name[FSLMC_OBJECT_MAX_LEN]; /**< DPAA2 Object name*/
109 typedef int (*rte_dpaa2_probe_t)(struct rte_dpaa2_driver *dpaa2_drv,
110 struct rte_dpaa2_device *dpaa2_dev);
111 typedef int (*rte_dpaa2_remove_t)(struct rte_dpaa2_device *dpaa2_dev);
114 * A structure describing a DPAA2 driver.
116 struct rte_dpaa2_driver {
117 TAILQ_ENTRY(rte_dpaa2_driver) next; /**< Next in list. */
118 struct rte_driver driver; /**< Inherit core driver. */
119 struct rte_fslmc_bus *fslmc_bus; /**< FSLMC bus reference */
120 uint32_t drv_flags; /**< Flags for controlling device.*/
121 enum rte_dpaa2_dev_type drv_type; /**< Driver Type */
122 rte_dpaa2_probe_t probe;
123 rte_dpaa2_remove_t remove;
129 struct rte_fslmc_bus {
130 struct rte_bus bus; /**< Generic Bus object */
131 struct rte_fslmc_device_list device_list;
132 /**< FSLMC DPAA2 Device list */
133 struct rte_fslmc_driver_list driver_list;
134 /**< FSLMC DPAA2 Driver list */
135 int device_count[DPAA2_DEVTYPE_MAX];
136 /**< Count of all devices scanned */
139 #define DPAA2_PORTAL_DEQUEUE_DEPTH 32
141 /* Create storage for dqrr entries per lcore */
142 struct dpaa2_portal_dqrr {
143 struct rte_mbuf *mbuf[DPAA2_PORTAL_DEQUEUE_DEPTH];
148 RTE_DECLARE_PER_LCORE(struct dpaa2_portal_dqrr, dpaa2_held_bufs);
150 #define DPAA2_PER_LCORE_DQRR_SIZE \
151 RTE_PER_LCORE(dpaa2_held_bufs).dqrr_size
152 #define DPAA2_PER_LCORE_DQRR_HELD \
153 RTE_PER_LCORE(dpaa2_held_bufs).dqrr_held
154 #define DPAA2_PER_LCORE_DQRR_MBUF(i) \
155 RTE_PER_LCORE(dpaa2_held_bufs).mbuf[i]
158 * Register a DPAA2 driver.
161 * A pointer to a rte_dpaa2_driver structure describing the driver
164 void rte_fslmc_driver_register(struct rte_dpaa2_driver *driver);
167 * Unregister a DPAA2 driver.
170 * A pointer to a rte_dpaa2_driver structure describing the driver
171 * to be unregistered.
173 void rte_fslmc_driver_unregister(struct rte_dpaa2_driver *driver);
175 /** Helper for DPAA2 device registration from driver (eth, crypto) instance */
176 #define RTE_PMD_REGISTER_DPAA2(nm, dpaa2_drv) \
177 RTE_INIT(dpaa2initfn_ ##nm) \
179 (dpaa2_drv).driver.name = RTE_STR(nm);\
180 rte_fslmc_driver_register(&dpaa2_drv); \
182 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
185 * Register a DPAA2 MC Object driver.
188 * A pointer to a rte_dpaa_object structure describing the mc object
191 void rte_fslmc_object_register(struct rte_dpaa2_object *object);
194 * Count of a particular type of DPAA2 device scanned on the bus.
197 * Type of device as rte_dpaa2_dev_type enumerator
199 * >=0 for count; 0 indicates either no device of the said type scanned or
200 * invalid device type.
202 uint32_t rte_fslmc_get_device_count(enum rte_dpaa2_dev_type device_type);
204 /** Helper for DPAA2 object registration */
205 #define RTE_PMD_REGISTER_DPAA2_OBJECT(nm, dpaa2_obj) \
206 RTE_INIT(dpaa2objinitfn_ ##nm) \
208 (dpaa2_obj).name = RTE_STR(nm);\
209 rte_fslmc_object_register(&dpaa2_obj); \
211 RTE_PMD_EXPORT_NAME(nm, __COUNTER__)
217 #endif /* _RTE_FSLMC_H_ */