[PATCH v2 2/5] examples/ethtool: add a new command module-eeprom

[Zijie Pan <zijie.pan@6wind.com>]

Add a new command "module-eeprom" to get the data of plugin
module EEPROM.

Signed-off-by: Zijie Pan <zijie.pan@6wind.com>
---
 doc/guides/sample_app_ug/ethtool.rst  |    2 ++
 examples/ethtool/ethtool-app/ethapp.c |   64 +++++++++++++++++++++++++++++++++
 examples/ethtool/lib/rte_ethtool.c    |   30 ++++++++++++++++
 examples/ethtool/lib/rte_ethtool.h    |   34 ++++++++++++++++++
 4 files changed, 130 insertions(+)

diff --git a/doc/guides/sample_app_ug/ethtool.rst b/doc/guides/sample_app_ug/ethtool.rst
index 1b79aca..028b8e9 100644
--- a/doc/guides/sample_app_ug/ethtool.rst
+++ b/doc/guides/sample_app_ug/ethtool.rst
@@ -97,6 +97,8 @@ the following functions:
 - ``rte_ethtool_get_eeprom_len()``
 - ``rte_ethtool_get_eeprom()``
 - ``rte_ethtool_set_eeprom()``
+- ``rte_ethtool_get_module_info()``
+- ``rte_ethtool_get_module_eeprom()``
 - ``rte_ethtool_get_pauseparam()``
 - ``rte_ethtool_set_pauseparam()``
 - ``rte_ethtool_net_open()``
diff --git a/examples/ethtool/ethtool-app/ethapp.c b/examples/ethtool/ethtool-app/ethapp.c
index 0c3f1f6..c37b7c3 100644
--- a/examples/ethtool/ethtool-app/ethapp.c
+++ b/examples/ethtool/ethtool-app/ethapp.c
@@ -75,6 +75,9 @@ struct pcmd_intintint_params {
 /* Commands taking port id and string */
 cmdline_parse_token_string_t pcmd_eeprom_token_cmd =
 	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "eeprom");
+cmdline_parse_token_string_t pcmd_module_eeprom_token_cmd =
+	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd,
+				 "module-eeprom");
 cmdline_parse_token_string_t pcmd_mtu_token_cmd =
 	TOKEN_STRING_INITIALIZER(struct pcmd_intstr_params, cmd, "mtu");
 cmdline_parse_token_string_t pcmd_regs_token_cmd =
@@ -298,6 +301,54 @@ struct pcmd_intintint_params {
 
 
 static void
+pcmd_module_eeprom_callback(void *ptr_params,
+	__rte_unused struct cmdline *ctx,
+	__rte_unused void *ptr_data)
+{
+	struct pcmd_intstr_params *params = ptr_params;
+	struct ethtool_eeprom info_eeprom;
+	uint32_t module_info[2];
+	int stat;
+	unsigned char bytes_eeprom[EEPROM_DUMP_CHUNKSIZE];
+	FILE *fp_eeprom;
+
+	if (!rte_eth_dev_is_valid_port(params->port)) {
+		printf("Error: Invalid port number %i\n", params->port);
+		return;
+	}
+
+	stat = rte_ethtool_get_module_info(params->port, module_info);
+	if (stat != 0) {
+		printf("Module EEPROM information read error %i\n", stat);
+		return;
+	}
+
+	info_eeprom.len = module_info[1];
+	info_eeprom.offset = 0;
+
+	stat = rte_ethtool_get_module_eeprom(params->port,
+					     &info_eeprom, bytes_eeprom);
+	if (stat != 0) {
+		printf("Module EEPROM read error %i\n", stat);
+		return;
+	}
+
+	fp_eeprom = fopen(params->opt, "wb");
+	if (fp_eeprom == NULL) {
+		printf("Error opening '%s' for writing\n", params->opt);
+		return;
+	}
+	printf("Total plugin module EEPROM length: %i bytes\n",
+	       info_eeprom.len);
+	if (fwrite(bytes_eeprom, 1, info_eeprom.len,
+		   fp_eeprom) != info_eeprom.len) {
+		printf("Error writing '%s'\n", params->opt);
+	}
+	fclose(fp_eeprom);
+}
+
+
+static void
 pcmd_pause_callback(void *ptr_params,
 	__rte_unused struct cmdline *ctx,
 	void *ptr_data)
@@ -664,6 +715,18 @@ static void pcmd_vlan_callback(__rte_unused void *ptr_params,
 		NULL
 	},
 };
+cmdline_parse_inst_t pcmd_module_eeprom = {
+	.f = pcmd_module_eeprom_callback,
+	.data = NULL,
+	.help_str = "module-eeprom <port_id> <filename>\n"
+		"     Dump plugin module EEPROM to file",
+	.tokens = {
+		(void *)&pcmd_module_eeprom_token_cmd,
+		(void *)&pcmd_intstr_token_port,
+		(void *)&pcmd_intstr_token_opt,
+		NULL
+	},
+};
 cmdline_parse_inst_t pcmd_pause_noopt = {
 	.f = pcmd_pause_callback,
 	.data = (void *)0x01,
@@ -816,6 +879,7 @@ static void pcmd_vlan_callback(__rte_unused void *ptr_params,
 cmdline_parse_ctx_t list_prompt_commands[] = {
 	(cmdline_parse_inst_t *)&pcmd_drvinfo,
 	(cmdline_parse_inst_t *)&pcmd_eeprom,
+	(cmdline_parse_inst_t *)&pcmd_module_eeprom,
 	(cmdline_parse_inst_t *)&pcmd_link,
 	(cmdline_parse_inst_t *)&pcmd_macaddr_get,
 	(cmdline_parse_inst_t *)&pcmd_macaddr,
diff --git a/examples/ethtool/lib/rte_ethtool.c b/examples/ethtool/lib/rte_ethtool.c
index 90dfbb7..36c81d4 100644
--- a/examples/ethtool/lib/rte_ethtool.c
+++ b/examples/ethtool/lib/rte_ethtool.c
@@ -174,6 +174,36 @@
 }
 
 int
+rte_ethtool_get_module_info(uint16_t port_id, uint32_t *modinfo)
+{
+	struct rte_dev_module_info *info;
+
+	info = (struct rte_dev_module_info *)modinfo;
+	return rte_eth_dev_get_module_info(port_id, info);
+}
+
+int
+rte_ethtool_get_module_eeprom(uint16_t port_id, struct ethtool_eeprom *eeprom,
+	void *words)
+{
+	struct rte_dev_eeprom_info eeprom_info;
+	int status;
+
+	if (eeprom == NULL || words == NULL)
+		return -EINVAL;
+
+	eeprom_info.offset = eeprom->offset;
+	eeprom_info.length = eeprom->len;
+	eeprom_info.data = words;
+
+	status = rte_eth_dev_get_module_eeprom(port_id, &eeprom_info);
+	if (status)
+		return status;
+
+	return 0;
+}
+
+int
 rte_ethtool_get_pauseparam(uint16_t port_id,
 	struct ethtool_pauseparam *pause_param)
 {
diff --git a/examples/ethtool/lib/rte_ethtool.h b/examples/ethtool/lib/rte_ethtool.h
index c962396..43adc97 100644
--- a/examples/ethtool/lib/rte_ethtool.h
+++ b/examples/ethtool/lib/rte_ethtool.h
@@ -154,6 +154,40 @@ int rte_ethtool_set_eeprom(uint16_t port_id, struct ethtool_eeprom *eeprom,
 			      void *words);
 
 /**
+ * Retrieve the type and size of plugin module EEPROM
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param modinfo
+ *	 The pointer that provides the type and size of plugin module EEPROM.
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_module_info(uint16_t port_id, uint32_t *modinfo);
+
+/**
+ * Retrieve the data of plugin module EEPROM
+ *
+ * @param port_id
+ *   The port identifier of the Ethernet device.
+ * @param eeprom
+ *	 The pointer of ethtool_eeprom that provides plugin module eeprom
+ *   offset and length
+ * @param words
+ *	 A buffer that holds data read from plugin module eeprom
+ * @return
+ *   - (0) if successful.
+ *   - (-ENOTSUP) if hardware doesn't support.
+ *   - (-ENODEV) if *port_id* invalid.
+ *   - others depends on the specific operations implementation.
+ */
+int rte_ethtool_get_module_eeprom(uint16_t port_id,
+				  struct ethtool_eeprom *eeprom, void *words);
+
+/**
  * Retrieve the Ethernet device pause frame configuration according to
  * parameter attributes desribed by ethtool data structure,
  * ethtool_pauseparam.
-- 
1.7.10.4