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From: "Min Hu (Connor)" <humin29@huawei.com>
To: <dev@dpdk.org>
Cc: <ferruh.yigit@intel.com>, <thomas@monjalon.net>
Subject: [RFC v2] ethdev: introduce ethdev dump API
Date: Wed, 12 Jan 2022 10:40:08 +0800	[thread overview]
Message-ID: <20220112024008.25211-1-humin29@huawei.com> (raw)
In-Reply-To: <20220111115437.32855-1-humin29@huawei.com>

Added the ethdev dump API which provides functions for query private info
from device. There exists many private properties in different PMD drivers,
such as adapter state, Rx/Tx func algorithm in hns3 PMD. The information of
these properties is important for debug. As the information is private,
the new API is introduced.

Signed-off-by: Min Hu (Connor) <humin29@huawei.com>
---
v2:
* fix dump API name
* adjust description in doc.
---
 doc/guides/rel_notes/release_22_03.rst |  7 +++++++
 lib/ethdev/ethdev_driver.h             | 17 +++++++++++++++++
 lib/ethdev/rte_ethdev.c                | 15 +++++++++++++++
 lib/ethdev/rte_ethdev.h                | 16 ++++++++++++++++
 4 files changed, 55 insertions(+)

diff --git a/doc/guides/rel_notes/release_22_03.rst b/doc/guides/rel_notes/release_22_03.rst
index 6d99d1eaa9..4f97df942d 100644
--- a/doc/guides/rel_notes/release_22_03.rst
+++ b/doc/guides/rel_notes/release_22_03.rst
@@ -55,6 +55,13 @@ New Features
      Also, make sure to start the actual text at the margin.
      =======================================================
 
+* **Added the private ethdev dump API, for query private info of ethdev.**
+
+  Added the private ethdev dump API which provides functions for query
+  private info from device. There exists many private properties in
+  different PMD drivers. The information of these properties is important
+  for debug. As the information is private, the new API is introduced.
+
 
 Removed Items
 -------------
diff --git a/lib/ethdev/ethdev_driver.h b/lib/ethdev/ethdev_driver.h
index d95605a355..e75ff3f15b 100644
--- a/lib/ethdev/ethdev_driver.h
+++ b/lib/ethdev/ethdev_driver.h
@@ -990,6 +990,20 @@ typedef int (*eth_representor_info_get_t)(struct rte_eth_dev *dev,
 typedef int (*eth_rx_metadata_negotiate_t)(struct rte_eth_dev *dev,
 				       uint64_t *features);
 
+/**
+ * @internal
+ * Get ethdev private info.
+ *
+ * @param file
+ *   A pointer to a file for output.
+ * @param dev
+ *   Port (ethdev) handle.
+ *
+ * @return
+ *   Negative errno value on error, positive value on success.
+ */
+typedef int (*eth_dev_priv_dump_t)(FILE *file, struct rte_eth_dev *dev);
+
 /**
  * @internal A structure containing the functions exported by an Ethernet driver.
  */
@@ -1186,6 +1200,9 @@ struct eth_dev_ops {
 	 * kinds of metadata to the PMD
 	 */
 	eth_rx_metadata_negotiate_t rx_metadata_negotiate;
+
+	/** Dump ethdev private info */
+	eth_dev_priv_dump_t eth_dev_priv_dump;
 };
 
 /**
diff --git a/lib/ethdev/rte_ethdev.c b/lib/ethdev/rte_ethdev.c
index a1d475a292..9fc6d91d76 100644
--- a/lib/ethdev/rte_ethdev.c
+++ b/lib/ethdev/rte_ethdev.c
@@ -6472,6 +6472,21 @@ rte_eth_rx_metadata_negotiate(uint16_t port_id, uint64_t *features)
 		       (*dev->dev_ops->rx_metadata_negotiate)(dev, features));
 }
 
+int
+rte_eth_dev_priv_dump(FILE *file, uint16_t port_id)
+{
+	struct rte_eth_dev *dev;
+	int ret;
+
+	RTE_ETH_VALID_PORTID_OR_ERR_RET(port_id, -ENODEV);
+	dev = &rte_eth_devices[port_id];
+
+	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->eth_dev_priv_dump, -ENOTSUP);
+	ret = (*dev->dev_ops->eth_dev_priv_dump)(file, dev);
+
+	return ret;
+}
+
 RTE_LOG_REGISTER_DEFAULT(rte_eth_dev_logtype, INFO);
 
 RTE_INIT(ethdev_init_telemetry)
diff --git a/lib/ethdev/rte_ethdev.h b/lib/ethdev/rte_ethdev.h
index fa299c8ad7..8e33e6927f 100644
--- a/lib/ethdev/rte_ethdev.h
+++ b/lib/ethdev/rte_ethdev.h
@@ -5888,6 +5888,22 @@ rte_eth_tx_buffer(uint16_t port_id, uint16_t queue_id,
 	return rte_eth_tx_buffer_flush(port_id, queue_id, buffer);
 }
 
+/**
+ * @warning
+ * @b EXPERIMENTAL: this API may change, or be removed, without prior notice
+ *
+ * Get ethdev private info.
+ *
+ * @param file
+ *   A pointer to a file for output.
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @return
+ *   Negative errno value on error, positive value on success.
+ */
+__rte_experimental
+int rte_eth_dev_priv_dump(FILE *file, uint16_t port_id);
+
 #ifdef __cplusplus
 }
 #endif
-- 
2.33.0


  parent reply	other threads:[~2022-01-12  2:39 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-11 11:54 [RFC] " Min Hu (Connor)
2022-01-11 12:10 ` Morten Brørup
2022-01-12  2:40   ` Min Hu (Connor)
2022-01-11 12:48 ` Thomas Monjalon
2022-01-12  2:41   ` Min Hu (Connor)
2022-01-12  2:44   ` Min Hu (Connor)
2022-01-12 10:13     ` Thomas Monjalon
2022-01-12 10:56       ` Min Hu (Connor)
2022-01-12  2:40 ` Min Hu (Connor) [this message]
2022-01-12  7:20   ` [RFC v2] " Morten Brørup
2022-01-12 11:15     ` Min Hu (Connor)
2022-01-14 17:56       ` Ajit Khaparde
2022-01-15  0:24         ` Min Hu (Connor)
2022-01-18 15:33           ` Ajit Khaparde
2022-01-12 11:14 ` [RFC v3] " Min Hu (Connor)
2022-01-12 12:05   ` Ray Kinsella
2022-01-18 15:34     ` Ajit Khaparde
2022-01-25 12:56       ` Ferruh Yigit
2022-01-25 12:58         ` Ferruh Yigit
2022-01-25 13:45           ` Min Hu (Connor)
2022-02-03 13:21             ` Ferruh Yigit
2022-02-07  1:37               ` Min Hu (Connor)
2022-02-07  1:35 ` Min Hu (Connor)
2022-02-07  1:47 ` [PATCH] " Min Hu (Connor)
2022-02-07 11:46   ` Ferruh Yigit
2022-02-07 12:18     ` Morten Brørup
2022-02-07 12:35       ` Ferruh Yigit
2022-02-07 12:56         ` Morten Brørup
2022-02-07 15:35           ` Ferruh Yigit
2022-02-08  0:39             ` Min Hu (Connor)
2022-02-08 10:21               ` Ferruh Yigit
2022-02-08 11:14                 ` Min Hu (Connor)
2022-02-08 12:59                   ` Ferruh Yigit
2022-02-08 13:52                     ` Thomas Monjalon
2022-02-09  1:07                       ` Min Hu (Connor)
2022-02-09  1:06                     ` Min Hu (Connor)
2022-02-08  2:46     ` Min Hu (Connor)
2022-02-08  2:45 ` [PATCH v2] ethdev: introduce " Min Hu (Connor)
2022-02-09  1:21 ` [PATCH v3] " Min Hu (Connor)
2022-02-10 12:32   ` Ferruh Yigit
2022-02-10 12:34     ` Ferruh Yigit
2022-02-11  4:53       ` Min Hu (Connor)
2022-02-10 12:37   ` Ferruh Yigit
2022-02-10 13:16     ` Min Hu (Connor)
2022-02-10 13:22       ` Ferruh Yigit
2022-02-10 15:50         ` Ferruh Yigit
2022-02-11  4:52           ` Min Hu (Connor)

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