root/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth-trace.h
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/* Copyright 2014-2015 Freescale Semiconductor Inc.
 */

#undef TRACE_SYSTEM
#define TRACE_SYSTEM    dpaa2_eth

#if !defined(_DPAA2_ETH_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _DPAA2_ETH_TRACE_H

#include <linux/skbuff.h>
#include <linux/netdevice.h>
#include <linux/tracepoint.h>

#define TR_FMT "[%s] fd: addr=0x%llx, len=%u, off=%u"
/* trace_printk format for raw buffer event class */
#define TR_BUF_FMT "[%s] vaddr=%p size=%zu dma_addr=%pad map_size=%zu bpid=%d"

/* This is used to declare a class of events.
 * individual events of this type will be defined below.
 */

/* Store details about a frame descriptor */
DECLARE_EVENT_CLASS(dpaa2_eth_fd,
                    /* Trace function prototype */
                    TP_PROTO(struct net_device *netdev,
                             const struct dpaa2_fd *fd),

                    /* Repeat argument list here */
                    TP_ARGS(netdev, fd),

                    /* A structure containing the relevant information we want
                     * to record. Declare name and type for each normal element,
                     * name, type and size for arrays. Use __string for variable
                     * length strings.
                     */
                    TP_STRUCT__entry(
                                     __field(u64, fd_addr)
                                     __field(u32, fd_len)
                                     __field(u16, fd_offset)
                                     __string(name, netdev->name)
                    ),

                    /* The function that assigns values to the above declared
                     * fields
                     */
                    TP_fast_assign(
                                   __entry->fd_addr = dpaa2_fd_get_addr(fd);
                                   __entry->fd_len = dpaa2_fd_get_len(fd);
                                   __entry->fd_offset = dpaa2_fd_get_offset(fd);
                                   __assign_str(name);
                    ),

                    /* This is what gets printed when the trace event is
                     * triggered.
                     */
                    TP_printk(TR_FMT,
                              __get_str(name),
                              __entry->fd_addr,
                              __entry->fd_len,
                              __entry->fd_offset)
);

/* Now declare events of the above type. Format is:
 * DEFINE_EVENT(class, name, proto, args), with proto and args same as for class
 */

/* Tx (egress) fd */
DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_fd,
             TP_PROTO(struct net_device *netdev,
                      const struct dpaa2_fd *fd),

             TP_ARGS(netdev, fd)
);

/* Tx (egress) XSK fd */
DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_xsk_fd,
             TP_PROTO(struct net_device *netdev,
                      const struct dpaa2_fd *fd),

             TP_ARGS(netdev, fd)
);

/* Rx fd */
DEFINE_EVENT(dpaa2_eth_fd, dpaa2_rx_fd,
             TP_PROTO(struct net_device *netdev,
                      const struct dpaa2_fd *fd),

             TP_ARGS(netdev, fd)
);

/* Rx XSK fd */
DEFINE_EVENT(dpaa2_eth_fd, dpaa2_rx_xsk_fd,
             TP_PROTO(struct net_device *netdev,
                      const struct dpaa2_fd *fd),

             TP_ARGS(netdev, fd)
);

/* Tx confirmation fd */
DEFINE_EVENT(dpaa2_eth_fd, dpaa2_tx_conf_fd,
             TP_PROTO(struct net_device *netdev,
                      const struct dpaa2_fd *fd),

             TP_ARGS(netdev, fd)
);

/* Log data about raw buffers. Useful for tracing DPBP content. */
DECLARE_EVENT_CLASS(dpaa2_eth_buf,
                    /* Trace function prototype */
                    TP_PROTO(struct net_device *netdev,
                             /* virtual address and size */
                            void *vaddr,
                            size_t size,
                            /* dma map address and size */
                            dma_addr_t dma_addr,
                            size_t map_size,
                            /* buffer pool id, if relevant */
                            u16 bpid),

                    /* Repeat argument list here */
                    TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid),

                    /* A structure containing the relevant information we want
                     * to record. Declare name and type for each normal element,
                     * name, type and size for arrays. Use __string for variable
                     * length strings.
                     */
                    TP_STRUCT__entry(
                                      __field(void *, vaddr)
                                      __field(size_t, size)
                                      __field(dma_addr_t, dma_addr)
                                      __field(size_t, map_size)
                                      __field(u16, bpid)
                                      __string(name, netdev->name)
                    ),

                    /* The function that assigns values to the above declared
                     * fields
                     */
                    TP_fast_assign(
                                   __entry->vaddr = vaddr;
                                   __entry->size = size;
                                   __entry->dma_addr = dma_addr;
                                   __entry->map_size = map_size;
                                   __entry->bpid = bpid;
                                   __assign_str(name);
                    ),

                    /* This is what gets printed when the trace event is
                     * triggered.
                     */
                    TP_printk(TR_BUF_FMT,
                              __get_str(name),
                              __entry->vaddr,
                              __entry->size,
                              &__entry->dma_addr,
                              __entry->map_size,
                              __entry->bpid)
);

/* Main memory buff seeding */
DEFINE_EVENT(dpaa2_eth_buf, dpaa2_eth_buf_seed,
             TP_PROTO(struct net_device *netdev,
                      void *vaddr,
                      size_t size,
                      dma_addr_t dma_addr,
                      size_t map_size,
                      u16 bpid),

             TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid)
);

/* UMEM buff seeding on AF_XDP fast path */
DEFINE_EVENT(dpaa2_eth_buf, dpaa2_xsk_buf_seed,
             TP_PROTO(struct net_device *netdev,
                      void *vaddr,
                      size_t size,
                      dma_addr_t dma_addr,
                      size_t map_size,
                      u16 bpid),

             TP_ARGS(netdev, vaddr, size, dma_addr, map_size, bpid)
);

/* If only one event of a certain type needs to be declared, use TRACE_EVENT().
 * The syntax is the same as for DECLARE_EVENT_CLASS().
 */

#endif /* _DPAA2_ETH_TRACE_H */

/* This must be outside ifdef _DPAA2_ETH_TRACE_H */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE      dpaa2-eth-trace
#include <trace/define_trace.h>