@@ -52,3 +52,11 @@ Get BAR addresses
Application can retrieve PCI BAR addresses of the device using the API
``rte_pmd_rvu_lf_bar_get()``. This helps application to configure the
registers of the hardware device.
+
+Register or remove interrupt handler
+------------------------------------
+
+Application can register interrupt handlers using ``rte_pmd_rvu_lf_irq_register()``
+or remove interrupt handler using ``rte_pmd_rvu_lf_irq_unregister()``.
+The irq numbers for which the interrupts are registered is negotiated separately
+and is not in scope of the driver.
@@ -61,3 +61,29 @@ roc_rvu_lf_dev_fini(struct roc_rvu_lf *roc_rvu_lf)
return dev_fini(&rvu->dev, rvu->pci_dev);
}
+
+int
+roc_rvu_lf_irq_register(struct roc_rvu_lf *roc_rvu_lf, unsigned int irq,
+ roc_rvu_lf_intr_cb_fn cb, void *data)
+{
+ struct rvu_lf *rvu = roc_rvu_lf_to_rvu_priv(roc_rvu_lf);
+ struct plt_intr_handle *handle;
+
+ handle = rvu->pci_dev->intr_handle;
+
+ return dev_irq_register(handle, (plt_intr_callback_fn)cb, data, irq);
+}
+
+int
+roc_rvu_lf_irq_unregister(struct roc_rvu_lf *roc_rvu_lf, unsigned int irq,
+ roc_rvu_lf_intr_cb_fn cb, void *data)
+{
+ struct rvu_lf *rvu = roc_rvu_lf_to_rvu_priv(roc_rvu_lf);
+ struct plt_intr_handle *handle;
+
+ handle = rvu->pci_dev->intr_handle;
+
+ dev_irq_unregister(handle, (plt_intr_callback_fn)cb, data, irq);
+
+ return 0;
+}
@@ -21,4 +21,9 @@ TAILQ_HEAD(roc_rvu_lf_head, roc_rvu_lf);
int __roc_api roc_rvu_lf_dev_init(struct roc_rvu_lf *roc_rvu_lf);
int __roc_api roc_rvu_lf_dev_fini(struct roc_rvu_lf *roc_rvu_lf);
+typedef void (*roc_rvu_lf_intr_cb_fn)(void *cb_arg);
+int __roc_api roc_rvu_lf_irq_register(struct roc_rvu_lf *roc_rvu_lf, unsigned int irq,
+ roc_rvu_lf_intr_cb_fn cb, void *cb_arg);
+int __roc_api roc_rvu_lf_irq_unregister(struct roc_rvu_lf *roc_rvu_lf, unsigned int irq,
+ roc_rvu_lf_intr_cb_fn cb, void *cb_arg);
#endif /* _ROC_RVU_LF_H_ */
@@ -550,5 +550,7 @@ INTERNAL {
roc_ree_rule_db_prog;
roc_rvu_lf_dev_fini;
roc_rvu_lf_dev_init;
+ roc_rvu_lf_irq_register;
+ roc_rvu_lf_irq_unregister;
local: *;
};
@@ -16,6 +16,36 @@
#include "cnxk_rvu_lf.h"
#include "rte_pmd_cnxk_rvu_lf.h"
+int
+rte_pmd_rvu_lf_irq_register(uint8_t dev_id, unsigned int irq,
+ rte_pmd_rvu_lf_intr_callback_fn cb, void *data)
+{
+ struct rte_rawdev *rawdev = rte_rawdev_pmd_get_dev(dev_id);
+ struct roc_rvu_lf *roc_rvu_lf;
+
+ if (rawdev == NULL)
+ return -EINVAL;
+
+ roc_rvu_lf = (struct roc_rvu_lf *)rawdev->dev_private;
+
+ return roc_rvu_lf_irq_register(roc_rvu_lf, irq, (roc_rvu_lf_intr_cb_fn)cb, data);
+}
+
+int
+rte_pmd_rvu_lf_irq_unregister(uint8_t dev_id, unsigned int irq,
+ rte_pmd_rvu_lf_intr_callback_fn cb, void *data)
+{
+ struct rte_rawdev *rawdev = rte_rawdev_pmd_get_dev(dev_id);
+ struct roc_rvu_lf *roc_rvu_lf;
+
+ if (rawdev == NULL)
+ return -EINVAL;
+
+ roc_rvu_lf = (struct roc_rvu_lf *)rawdev->dev_private;
+
+ return roc_rvu_lf_irq_unregister(roc_rvu_lf, irq, (roc_rvu_lf_intr_cb_fn)cb, data);
+}
+
int
rte_pmd_rvu_lf_bar_get(uint8_t dev_id, uint8_t bar_num, size_t *va, size_t *mask)
{
@@ -62,6 +62,52 @@ uint16_t rte_pmd_rvu_lf_sso_pf_func_get(void);
__rte_experimental
int rte_pmd_rvu_lf_bar_get(uint8_t dev_id, uint8_t bar_num, size_t *va, size_t *mask);
+/**
+ * Signature of callback function called when an interrupt is received on RVU LF device.
+ *
+ * @param cb_arg
+ * pointer to the information received on an interrupt
+ */
+typedef void (*rte_pmd_rvu_lf_intr_callback_fn)(void *cb_arg);
+
+/**
+ * Register interrupt callback
+ *
+ * Registers an interrupt callback to be executed when interrupt is raised.
+ *
+ * @param dev_id
+ * device id of RVU LF device
+ * @param irq
+ * interrupt number for which interrupt will be raised
+ * @param cb
+ * callback function to be executed
+ * @param cb_arg
+ * argument to be passed to callback function
+ *
+ * @return 0 on success, negative value otherwise
+ */
+__rte_experimental
+int rte_pmd_rvu_lf_irq_register(uint8_t dev_id, unsigned int irq,
+ rte_pmd_rvu_lf_intr_callback_fn cb, void *cb_arg);
+
+/**
+ * Unregister interrupt callback
+ *
+ * @param dev_id
+ * device id of RVU LF device
+ * @param irq
+ * interrupt number
+ * @param cb
+ * callback function registered
+ * @param cb_arg
+ * argument to be passed to callback function
+ *
+ * @return 0 on success, negative value otherwise
+ */
+__rte_experimental
+int rte_pmd_rvu_lf_irq_unregister(uint8_t dev_id, unsigned int irq,
+ rte_pmd_rvu_lf_intr_callback_fn cb, void *cb_arg);
+
#ifdef __cplusplus
}
#endif