fjes: Add tracepoints in fjes driver

This patch adds tracepoints in fjes driver.
This is useful for debugging purpose.

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 311 insertions, 0 deletions

diff --git a/drivers/net/fjes/fjes_trace.h b/drivers/net/fjes/fjes_trace.h
new file mode 100644
index 000000000000..1f0a48933f46
--- /dev/null
+++ b/drivers/net/fjes/fjes_trace.h
@@ -0,0 +1,311 @@
+/*
+ *  FUJITSU Extended Socket Network Device driver
+ *  Copyright (c) 2015-2016 FUJITSU LIMITED
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ */
+
+#if !defined(FJES_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
+#define FJES_TRACE_H_
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fjes
+
+/* tracepoints for fjes_hw.c */
+
+TRACE_EVENT(fjes_hw_issue_request_command,
+	TP_PROTO(union REG_CR *cr, union REG_CS *cs, int timeout,
+		 enum fjes_dev_command_response_e ret),
+	TP_ARGS(cr, cs, timeout, ret),
+	TP_STRUCT__entry(
+		__field(u16, cr_req)
+		__field(u8, cr_error)
+		__field(u16, cr_err_info)
+		__field(u8, cr_req_start)
+		__field(u16, cs_req)
+		__field(u8, cs_busy)
+		__field(u8, cs_complete)
+		__field(int, timeout)
+		__field(int, ret);
+	),
+	TP_fast_assign(
+		__entry->cr_req = cr->bits.req_code;
+		__entry->cr_error = cr->bits.error;
+		__entry->cr_err_info = cr->bits.err_info;
+		__entry->cr_req_start = cr->bits.req_start;
+		__entry->cs_req = cs->bits.req_code;
+		__entry->cs_busy = cs->bits.busy;
+		__entry->cs_complete = cs->bits.complete;
+		__entry->timeout = timeout;
+		__entry->ret = ret;
+	),
+	TP_printk("CR=[req=%04x, error=%u, err_info=%04x, req_start=%u], CS=[req=%04x, busy=%u, complete=%u], timeout=%d, ret=%d",
+		  __entry->cr_req, __entry->cr_error, __entry->cr_err_info,
+		  __entry->cr_req_start, __entry->cs_req, __entry->cs_busy,
+		  __entry->cs_complete, __entry->timeout, __entry->ret)
+);
+
+TRACE_EVENT(fjes_hw_request_info,
+	TP_PROTO(struct fjes_hw *hw, union fjes_device_command_res *res_buf),
+	TP_ARGS(hw, res_buf),
+	TP_STRUCT__entry(
+		__field(int, length)
+		__field(int, code)
+		__dynamic_array(u8, zone, hw->max_epid)
+		__dynamic_array(u8, status, hw->max_epid)
+	),
+	TP_fast_assign(
+		int x;
+
+		__entry->length = res_buf->info.length;
+		__entry->code = res_buf->info.code;
+		for (x = 0; x < hw->max_epid; x++) {
+			*((u8 *)__get_dynamic_array(zone) + x) =
+					res_buf->info.info[x].zone;
+			*((u8 *)__get_dynamic_array(status) + x) =
+					res_buf->info.info[x].es_status;
+		}
+	),
+	TP_printk("res_buf=[length=%d, code=%d, es_zones=%s, es_status=%s]",
+		  __entry->length, __entry->code,
+		  __print_array(__get_dynamic_array(zone),
+				__get_dynamic_array_len(zone) / sizeof(u8),
+				sizeof(u8)),
+		  __print_array(__get_dynamic_array(status),
+				__get_dynamic_array_len(status) / sizeof(u8),
+				sizeof(u8)))
+);
+
+TRACE_EVENT(fjes_hw_request_info_err,
+	TP_PROTO(char *err),
+	TP_ARGS(err),
+	TP_STRUCT__entry(
+		__string(err, err)
+	),
+	TP_fast_assign(
+		__assign_str(err, err);
+	),
+	TP_printk("%s", __get_str(err))
+);
+
+TRACE_EVENT(fjes_hw_register_buff_addr_req,
+	TP_PROTO(union fjes_device_command_req *req_buf,
+		 struct ep_share_mem_info *buf_pair),
+	TP_ARGS(req_buf, buf_pair),
+	TP_STRUCT__entry(
+		__field(int, length)
+		__field(int, epid)
+		__field(u64, tx)
+		__field(size_t,	tx_size)
+		__field(u64, rx)
+		__field(size_t,	rx_size)
+	),
+	TP_fast_assign(
+		void *tx, *rx;
+
+		tx = (void *)buf_pair->tx.buffer;
+		rx = (void *)buf_pair->rx.buffer;
+		__entry->length = req_buf->share_buffer.length;
+		__entry->epid = req_buf->share_buffer.epid;
+		__entry->tx_size = buf_pair->tx.size;
+		__entry->rx_size = buf_pair->rx.size;
+		__entry->tx = page_to_phys(vmalloc_to_page(tx)) +
+				offset_in_page(tx);
+		__entry->rx = page_to_phys(vmalloc_to_page(rx)) +
+				offset_in_page(rx);
+	),
+	TP_printk("req_buf=[length=%d, epid=%d], TX=[phy=0x%016llx, size=%zu], RX=[phy=0x%016llx, size=%zu]",
+		  __entry->length, __entry->epid, __entry->tx, __entry->tx_size,
+		  __entry->rx, __entry->rx_size)
+);
+
+TRACE_EVENT(fjes_hw_register_buff_addr,
+	TP_PROTO(union fjes_device_command_res *res_buf, int timeout),
+	TP_ARGS(res_buf, timeout),
+	TP_STRUCT__entry(
+		__field(int, length)
+		__field(int, code)
+		__field(int, timeout)
+	),
+	TP_fast_assign(
+		__entry->length = res_buf->share_buffer.length;
+		__entry->code = res_buf->share_buffer.code;
+		__entry->timeout = timeout;
+	),
+	TP_printk("res_buf=[length=%d, code=%d], timeout=%d",
+		  __entry->length, __entry->code, __entry->timeout)
+);
+
+TRACE_EVENT(fjes_hw_register_buff_addr_err,
+	TP_PROTO(char *err),
+	TP_ARGS(err),
+	TP_STRUCT__entry(
+		__string(err, err)
+	),
+	TP_fast_assign(
+		__assign_str(err, err);
+	),
+	TP_printk("%s", __get_str(err))
+);
+
+TRACE_EVENT(fjes_hw_unregister_buff_addr_req,
+	TP_PROTO(union fjes_device_command_req *req_buf),
+	TP_ARGS(req_buf),
+	TP_STRUCT__entry(
+		__field(int, length)
+		__field(int, epid)
+	),
+	TP_fast_assign(
+		__entry->length = req_buf->unshare_buffer.length;
+		__entry->epid = req_buf->unshare_buffer.epid;
+	),
+	TP_printk("req_buf=[length=%d, epid=%d]",
+		  __entry->length, __entry->epid)
+);
+
+TRACE_EVENT(fjes_hw_unregister_buff_addr,
+	TP_PROTO(union fjes_device_command_res *res_buf, int timeout),
+	TP_ARGS(res_buf, timeout),
+	TP_STRUCT__entry(
+		__field(int, length)
+		__field(int, code)
+		__field(int, timeout)
+	),
+	TP_fast_assign(
+		__entry->length = res_buf->unshare_buffer.length;
+		__entry->code = res_buf->unshare_buffer.code;
+		__entry->timeout = timeout;
+	),
+	TP_printk("res_buf=[length=%d, code=%d], timeout=%d",
+		  __entry->length, __entry->code, __entry->timeout)
+);
+
+TRACE_EVENT(fjes_hw_unregister_buff_addr_err,
+	TP_PROTO(char *err),
+	TP_ARGS(err),
+	TP_STRUCT__entry(
+		__string(err, err)
+	),
+	TP_fast_assign(
+		__assign_str(err, err);
+	),
+	TP_printk("%s", __get_str(err))
+);
+
+/* tracepoints for fjes_main.c */
+
+TRACE_EVENT(fjes_txrx_stop_req_irq_pre,
+	TP_PROTO(struct fjes_hw *hw, int src_epid,
+		 enum ep_partner_status status),
+	TP_ARGS(hw, src_epid, status),
+	TP_STRUCT__entry(
+		__field(int, src_epid)
+		__field(enum ep_partner_status, status)
+		__field(u8, ep_status)
+		__field(unsigned long, txrx_stop_req_bit)
+		__field(u16, rx_status)
+	),
+	TP_fast_assign(
+		__entry->src_epid = src_epid;
+		__entry->status = status;
+		__entry->ep_status = hw->hw_info.share->ep_status[src_epid];
+		__entry->txrx_stop_req_bit = hw->txrx_stop_req_bit;
+		__entry->rx_status =
+			hw->ep_shm_info[src_epid].tx.info->v1i.rx_status;
+	),
+	TP_printk("epid=%d, partner_status=%d, ep_status=%x, txrx_stop_req_bit=%016lx, tx.rx_status=%08x",
+		  __entry->src_epid, __entry->status, __entry->ep_status,
+		  __entry->txrx_stop_req_bit, __entry->rx_status)
+);
+
+TRACE_EVENT(fjes_txrx_stop_req_irq_post,
+	TP_PROTO(struct fjes_hw *hw, int src_epid),
+	TP_ARGS(hw, src_epid),
+	TP_STRUCT__entry(
+		__field(int, src_epid)
+		__field(u8, ep_status)
+		__field(unsigned long, txrx_stop_req_bit)
+		__field(u16, rx_status)
+	),
+	TP_fast_assign(
+		__entry->src_epid = src_epid;
+		__entry->ep_status = hw->hw_info.share->ep_status[src_epid];
+		__entry->txrx_stop_req_bit = hw->txrx_stop_req_bit;
+		__entry->rx_status = hw->ep_shm_info[src_epid].tx.info->v1i.rx_status;
+	),
+	TP_printk("epid=%d, ep_status=%x, txrx_stop_req_bit=%016lx, tx.rx_status=%08x",
+		  __entry->src_epid, __entry->ep_status,
+		  __entry->txrx_stop_req_bit, __entry->rx_status)
+);
+
+TRACE_EVENT(fjes_stop_req_irq_pre,
+	TP_PROTO(struct fjes_hw *hw, int src_epid,
+		 enum ep_partner_status status),
+	TP_ARGS(hw, src_epid, status),
+	TP_STRUCT__entry(
+		__field(int, src_epid)
+		__field(enum ep_partner_status, status)
+		__field(u8, ep_status)
+		__field(unsigned long, txrx_stop_req_bit)
+		__field(u16, rx_status)
+	),
+	TP_fast_assign(
+		__entry->src_epid = src_epid;
+		__entry->status = status;
+		__entry->ep_status = hw->hw_info.share->ep_status[src_epid];
+		__entry->txrx_stop_req_bit = hw->txrx_stop_req_bit;
+		__entry->rx_status =
+			hw->ep_shm_info[src_epid].tx.info->v1i.rx_status;
+	),
+	TP_printk("epid=%d, partner_status=%d, ep_status=%x, txrx_stop_req_bit=%016lx, tx.rx_status=%08x",
+		  __entry->src_epid, __entry->status, __entry->ep_status,
+		  __entry->txrx_stop_req_bit, __entry->rx_status)
+);
+
+TRACE_EVENT(fjes_stop_req_irq_post,
+	TP_PROTO(struct fjes_hw *hw, int src_epid),
+	TP_ARGS(hw, src_epid),
+	TP_STRUCT__entry(
+		__field(int, src_epid)
+		__field(u8, ep_status)
+		__field(unsigned long, txrx_stop_req_bit)
+		__field(u16, rx_status)
+	),
+	TP_fast_assign(
+		__entry->src_epid = src_epid;
+		__entry->ep_status = hw->hw_info.share->ep_status[src_epid];
+		__entry->txrx_stop_req_bit = hw->txrx_stop_req_bit;
+		__entry->rx_status =
+			hw->ep_shm_info[src_epid].tx.info->v1i.rx_status;
+	),
+	TP_printk("epid=%d, ep_status=%x, txrx_stop_req_bit=%016lx, tx.rx_status=%08x",
+		  __entry->src_epid, __entry->ep_status,
+		  __entry->txrx_stop_req_bit, __entry->rx_status)
+);
+
+#endif /* FJES_TRACE_H_ */
+
+#undef TRACE_INCLUDE_PATH
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_PATH ../../../drivers/net/fjes
+#define TRACE_INCLUDE_FILE fjes_trace
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>