#ifndef RTE_PMD_MLX5_VDPA_H_
#define RTE_PMD_MLX5_VDPA_H_
+#include <linux/virtio_net.h>
#include <sys/queue.h>
#ifdef PEDANTIC
#pragma GCC diagnostic ignored "-Wpedantic"
#endif
#include <rte_vdpa.h>
+#include <rte_vdpa_dev.h>
#include <rte_vhost.h>
#ifdef PEDANTIC
#pragma GCC diagnostic error "-Wpedantic"
#endif
+#include <rte_spinlock.h>
+#include <rte_interrupts.h>
#include <mlx5_glue.h>
#include <mlx5_devx_cmds.h>
+#include <mlx5_common_devx.h>
+#include <mlx5_prm.h>
+
+
+#define MLX5_VDPA_INTR_RETRIES 256
+#define MLX5_VDPA_INTR_RETRIES_USEC 1000
+
+#ifndef VIRTIO_F_ORDER_PLATFORM
+#define VIRTIO_F_ORDER_PLATFORM 36
+#endif
+
+#ifndef VIRTIO_F_RING_PACKED
+#define VIRTIO_F_RING_PACKED 34
+#endif
+
+#define MLX5_VDPA_DEFAULT_TIMER_DELAY_US 0u
+#define MLX5_VDPA_DEFAULT_TIMER_STEP_US 1u
+
+struct mlx5_vdpa_cq {
+ uint16_t log_desc_n;
+ uint32_t cq_ci:24;
+ uint32_t arm_sn:2;
+ uint32_t armed:1;
+ int callfd;
+ rte_spinlock_t sl;
+ struct mlx5_devx_cq cq_obj;
+ uint64_t errors;
+};
+
+struct mlx5_vdpa_event_qp {
+ struct mlx5_vdpa_cq cq;
+ struct mlx5_devx_obj *fw_qp;
+ struct mlx5_devx_qp sw_qp;
+};
struct mlx5_vdpa_query_mr {
SLIST_ENTRY(mlx5_vdpa_query_mr) next;
int is_indirect;
};
+enum {
+ MLX5_VDPA_NOTIFIER_STATE_DISABLED,
+ MLX5_VDPA_NOTIFIER_STATE_ENABLED,
+ MLX5_VDPA_NOTIFIER_STATE_ERR
+};
+
+struct mlx5_vdpa_virtq {
+ SLIST_ENTRY(mlx5_vdpa_virtq) next;
+ uint8_t enable;
+ uint16_t index;
+ uint16_t vq_size;
+ uint8_t notifier_state;
+ bool stopped;
+ uint32_t version;
+ struct mlx5_vdpa_priv *priv;
+ struct mlx5_devx_obj *virtq;
+ struct mlx5_devx_obj *counters;
+ struct mlx5_vdpa_event_qp eqp;
+ struct {
+ struct mlx5dv_devx_umem *obj;
+ void *buf;
+ uint32_t size;
+ } umems[3];
+ struct rte_intr_handle *intr_handle;
+ uint64_t err_time[3]; /* RDTSC time of recent errors. */
+ uint32_t n_retry;
+ struct mlx5_devx_virtio_q_couners_attr reset;
+};
+
+struct mlx5_vdpa_steer {
+ struct mlx5_devx_obj *rqt;
+ void *domain;
+ void *tbl;
+ struct {
+ struct mlx5dv_flow_matcher *matcher;
+ struct mlx5_devx_obj *tir;
+ void *tir_action;
+ void *flow;
+ } rss[7];
+};
+
+enum {
+ MLX5_VDPA_EVENT_MODE_DYNAMIC_TIMER,
+ MLX5_VDPA_EVENT_MODE_FIXED_TIMER,
+ MLX5_VDPA_EVENT_MODE_ONLY_INTERRUPT
+};
+
struct mlx5_vdpa_priv {
TAILQ_ENTRY(mlx5_vdpa_priv) next;
- int id; /* vDPA device id. */
+ uint8_t configured;
+ pthread_mutex_t vq_config_lock;
+ uint64_t no_traffic_counter;
+ pthread_t timer_tid;
+ int event_mode;
+ int event_core; /* Event thread cpu affinity core. */
+ uint32_t event_us;
+ uint32_t timer_delay_us;
+ uint32_t no_traffic_max;
+ uint8_t hw_latency_mode; /* Hardware CQ moderation mode. */
+ uint16_t hw_max_latency_us; /* Hardware CQ moderation period in usec. */
+ uint16_t hw_max_pending_comp; /* Hardware CQ moderation counter. */
+ struct rte_vdpa_device *vdev; /* vDPA device. */
+ struct mlx5_common_device *cdev; /* Backend mlx5 device. */
int vid; /* vhost device id. */
- struct ibv_context *ctx; /* Device context. */
- struct rte_vdpa_dev_addr dev_addr;
struct mlx5_hca_vdpa_attr caps;
- uint32_t pdn; /* Protection Domain number. */
- struct ibv_pd *pd;
uint32_t gpa_mkey_index;
struct ibv_mr *null_mr;
struct rte_vhost_memory *vmem;
+ struct mlx5dv_devx_event_channel *eventc;
+ struct mlx5dv_devx_event_channel *err_chnl;
+ struct mlx5dv_devx_uar *uar;
+ struct rte_intr_handle *err_intr_handle;
+ struct mlx5_devx_obj *td;
+ struct mlx5_devx_obj *tiss[16]; /* TIS list for each LAG port. */
+ uint16_t nr_virtqs;
+ uint8_t num_lag_ports;
+ uint64_t features; /* Negotiated features. */
+ uint16_t log_max_rqt_size;
+ struct mlx5_vdpa_steer steer;
+ struct mlx5dv_var *var;
+ void *virtq_db_addr;
SLIST_HEAD(mr_list, mlx5_vdpa_query_mr) mr_list;
+ struct mlx5_vdpa_virtq virtqs[];
+};
+
+enum {
+ MLX5_VDPA_STATS_RECEIVED_DESCRIPTORS,
+ MLX5_VDPA_STATS_COMPLETED_DESCRIPTORS,
+ MLX5_VDPA_STATS_BAD_DESCRIPTOR_ERRORS,
+ MLX5_VDPA_STATS_EXCEED_MAX_CHAIN,
+ MLX5_VDPA_STATS_INVALID_BUFFER,
+ MLX5_VDPA_STATS_COMPLETION_ERRORS,
+ MLX5_VDPA_STATS_MAX
};
+/*
+ * Check whether virtq is for traffic receive.
+ * According to VIRTIO_NET Spec the virtqueues index identity its type by:
+ * 0 receiveq1
+ * 1 transmitq1
+ * ...
+ * 2(N-1) receiveqN
+ * 2(N-1)+1 transmitqN
+ * 2N controlq
+ */
+static inline uint8_t
+is_virtq_recvq(int virtq_index, int nr_vring)
+{
+ if (virtq_index % 2 == 0 && virtq_index != nr_vring - 1)
+ return 1;
+ return 0;
+}
+
/**
* Release all the prepared memory regions and all their related resources.
*
*/
int mlx5_vdpa_mem_register(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Create an event QP and all its related resources.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] desc_n
+ * Number of descriptors.
+ * @param[in] callfd
+ * The guest notification file descriptor.
+ * @param[in/out] eqp
+ * Pointer to the event QP structure.
+ *
+ * @return
+ * 0 on success, -1 otherwise and rte_errno is set.
+ */
+int mlx5_vdpa_event_qp_create(struct mlx5_vdpa_priv *priv, uint16_t desc_n,
+ int callfd, struct mlx5_vdpa_event_qp *eqp);
+
+/**
+ * Destroy an event QP and all its related resources.
+ *
+ * @param[in/out] eqp
+ * Pointer to the event QP structure.
+ */
+void mlx5_vdpa_event_qp_destroy(struct mlx5_vdpa_event_qp *eqp);
+
+/**
+ * Release all the event global resources.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ */
+void mlx5_vdpa_event_qp_global_release(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Setup CQE event.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int mlx5_vdpa_cqe_event_setup(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Unset CQE event .
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ */
+void mlx5_vdpa_cqe_event_unset(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Setup error interrupt handler.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int mlx5_vdpa_err_event_setup(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Unset error event handler.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ */
+void mlx5_vdpa_err_event_unset(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Release a virtq and all its related resources.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ */
+void mlx5_vdpa_virtqs_release(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Create all the HW virtqs resources and all their related resources.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ *
+ * @return
+ * 0 on success, a negative errno value otherwise and rte_errno is set.
+ */
+int mlx5_vdpa_virtqs_prepare(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Enable\Disable virtq..
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] index
+ * The virtq index.
+ * @param[in] enable
+ * Set to enable, otherwise disable.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_virtq_enable(struct mlx5_vdpa_priv *priv, int index, int enable);
+
+/**
+ * Unset steering and release all its related resources- stop traffic.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ */
+void mlx5_vdpa_steer_unset(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Update steering according to the received queues status.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_steer_update(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Setup steering and all its related resources to enable RSS traffic from the
+ * device to all the Rx host queues.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_steer_setup(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Enable\Disable live migration logging.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] enable
+ * Set for enable, unset for disable.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_logging_enable(struct mlx5_vdpa_priv *priv, int enable);
+
+/**
+ * Set dirty bitmap logging to allow live migration.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] log_base
+ * Vhost log base.
+ * @param[in] log_size
+ * Vhost log size.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_dirty_bitmap_set(struct mlx5_vdpa_priv *priv, uint64_t log_base,
+ uint64_t log_size);
+
+/**
+ * Log all virtqs information for live migration.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] enable
+ * Set for enable, unset for disable.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_lm_log(struct mlx5_vdpa_priv *priv);
+
+/**
+ * Modify virtq state to be ready or suspend.
+ *
+ * @param[in] virtq
+ * The vdpa driver private virtq structure.
+ * @param[in] state
+ * Set for ready, otherwise suspend.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_virtq_modify(struct mlx5_vdpa_virtq *virtq, int state);
+
+/**
+ * Stop virtq before destroying it.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] index
+ * The virtq index.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_virtq_stop(struct mlx5_vdpa_priv *priv, int index);
+
+/**
+ * Query virtq information.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] index
+ * The virtq index.
+ *
+ * @return
+ * 0 on success, a negative value otherwise.
+ */
+int mlx5_vdpa_virtq_query(struct mlx5_vdpa_priv *priv, int index);
+
+/**
+ * Get virtq statistics.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] qid
+ * The virtq index.
+ * @param stats
+ * The virtq statistics array to fill.
+ * @param n
+ * The number of elements in @p stats array.
+ *
+ * @return
+ * A negative value on error, otherwise the number of entries filled in the
+ * @p stats array.
+ */
+int
+mlx5_vdpa_virtq_stats_get(struct mlx5_vdpa_priv *priv, int qid,
+ struct rte_vdpa_stat *stats, unsigned int n);
+
+/**
+ * Reset virtq statistics.
+ *
+ * @param[in] priv
+ * The vdpa driver private structure.
+ * @param[in] qid
+ * The virtq index.
+ *
+ * @return
+ * A negative value on error, otherwise 0.
+ */
+int
+mlx5_vdpa_virtq_stats_reset(struct mlx5_vdpa_priv *priv, int qid);
#endif /* RTE_PMD_MLX5_VDPA_H_ */
git.droids-corp.org / dpdk.git / blobdiff