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From: Chaoyong He <chaoyong.he@corigine.com>
To: dev@dpdk.org
Cc: oss-drivers@corigine.com, James Hershaw <james.hershaw@corigine.com>,
Chaoyong He <chaoyong.he@corigine.com>
Subject: [PATCH v5 1/2] app/testpmd: add support for setting device EEPROM
Date: Thu, 10 Oct 2024 14:42:05 +0800
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From: James Hershaw <james.hershaw@corigine.com>
There is currently no means to test the .set_eeprom function callback of
a given PMD in drivers/net/. This patch adds functionality to allow a
user to set device eeprom from the testpmd cmdline.
Usage:
testpmd> set port <port-id> eeprom <accept_risk> magic <magic> \
value <value> offset <offset>
- <accept_risk> is a fixed string that is required from the user to
acknowledge the risk involved in using this command and accepting the
responsibility for that.
- <magic> is a decimal.
- <value> is a hex-as-string with no leading "0x".
- <offset> is a decimal (this field is optional and defaults to 0 if
not specified.)
Signed-off-by: James Hershaw <james.hershaw@corigine.com>
Reviewed-by: Chaoyong He <chaoyong.he@corigine.com>
---
app/test-pmd/cmdline.c | 127 ++++++++++++++++++++
app/test-pmd/config.c | 39 ++++++
app/test-pmd/testpmd.h | 2 +
doc/guides/testpmd_app_ug/testpmd_funcs.rst | 18 +++
4 files changed, 186 insertions(+)
diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 1fc1cce5fe..c917c4e83b 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -170,6 +170,15 @@ static void cmd_help_long_parsed(void *parsed_result,
"show port port_id (module_eeprom|eeprom)\n"
" Display the module EEPROM or EEPROM information for port_id.\n\n"
+ "set port (port_id) eeprom (accept_risk) magic (magic_num)"
+ " value (value) offset (offset)\n"
+ " Set the device eeprom for certain port.\nNote:\n"
+ " This is a high-risk command and its misuse may"
+ " result in unexpected behaviour from the NIC.\n"
+ " By inserting \"accept_risk\" into the command, the"
+ " user is acknowledging and taking responsibility for"
+ " this risk.\n\n"
+
"show port X rss reta (size) (mask0,mask1,...)\n"
" Display the rss redirection table entry indicated"
" by masks on port X. size is used to indicate the"
@@ -7462,6 +7471,123 @@ static cmdline_parse_inst_t cmd_showeeprom = {
},
};
+/* *** SET PORT EEPROM *** */
+struct cmd_seteeprom_result {
+ cmdline_fixed_string_t set;
+ cmdline_fixed_string_t port;
+ uint16_t portnum;
+ cmdline_fixed_string_t eeprom;
+ cmdline_fixed_string_t confirm_str;
+ cmdline_fixed_string_t magic_str;
+ uint32_t magic;
+ cmdline_fixed_string_t value;
+ cmdline_multi_string_t token_str;
+};
+
+static void cmd_seteeprom_parsed(void *parsed_result,
+ __rte_unused struct cmdline *cl,
+ __rte_unused void *data)
+{
+ struct cmd_seteeprom_result *res = parsed_result;
+ uint32_t offset = 0;
+ uint32_t length;
+ uint8_t *value;
+ char *token_str;
+ char *token;
+
+ token_str = res->token_str;
+ token = strtok_r(token_str, " \f\n\r\t\v", &token_str);
+
+ /* Parse Hex string to Byte data */
+ if (strlen(token) % 2 != 0) {
+ fprintf(stderr, "Bad Argument: %s\nHex string must be in multiples of 2 Bytes\n",
+ token);
+ return;
+ }
+
+ length = strlen(token) / 2;
+ value = calloc(length, sizeof(uint8_t));
+ for (int count = 0; count < (int)(length); count++) {
+ if (sscanf(token, "%2hhx", &value[count]) != 1) {
+ fprintf(stderr, "Bad Argument: %s\nValue must be a hex string\n",
+ token - (count + 1));
+ goto out;
+ }
+ token += 2;
+ }
+
+ /* Second token: offset string */
+ token = strtok_r(token_str, " \f\n\r\t\v", &token_str);
+ if (token != NULL) {
+ if (strcmp(token, "offset") == 0) {
+ /* Third token: offset */
+ token = strtok_r(token_str, " \f\n\r\t\v", &token_str);
+ if (token == NULL) {
+ fprintf(stderr, "No offset specified\n");
+ goto out;
+ }
+
+ char *end;
+ offset = strtoul(token, &end, 10);
+ if (offset == 0 && strcmp(end, "") != 0) {
+ fprintf(stderr, "Bad Argument: %s\n", token);
+ goto out;
+ }
+ } else {
+ fprintf(stderr, "Bad Argument: %s\n", token);
+ goto out;
+ }
+ }
+
+ port_eeprom_set(res->portnum, res->magic, offset, length, value);
+
+out:
+ free(value);
+}
+
+static cmdline_parse_token_string_t cmd_seteeprom_set =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, set, "set");
+static cmdline_parse_token_string_t cmd_seteeprom_port =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, port, "port");
+static cmdline_parse_token_num_t cmd_seteeprom_portnum =
+ TOKEN_NUM_INITIALIZER(struct cmd_seteeprom_result, portnum, RTE_UINT16);
+static cmdline_parse_token_string_t cmd_seteeprom_eeprom =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, eeprom, "eeprom");
+static cmdline_parse_token_string_t cmd_seteeprom_confirm_str =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, confirm_str, "accept_risk");
+static cmdline_parse_token_string_t cmd_seteeprom_magic_str =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, magic_str, "magic");
+static cmdline_parse_token_num_t cmd_seteeprom_magic =
+ TOKEN_NUM_INITIALIZER(struct cmd_seteeprom_result, magic, RTE_UINT32);
+static cmdline_parse_token_string_t cmd_seteeprom_value =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, value, "value");
+static cmdline_parse_token_string_t cmd_seteeprom_token_str =
+ TOKEN_STRING_INITIALIZER(struct cmd_seteeprom_result, token_str, TOKEN_STRING_MULTI);
+
+static cmdline_parse_inst_t cmd_seteeprom = {
+ .f = cmd_seteeprom_parsed,
+ .data = NULL,
+ .help_str = "set port <port_id> eeprom <accept_risk> magic <magic_num> "
+ "value <value> offset <offset>: Set eeprom value for port_id.\n"
+ "Note:\n"
+ "This is a high-risk command and its misuse may result in "
+ "unexpected behaviour from the NIC.\n"
+ "By inserting \"accept_risk\" into the command, the user is "
+ "acknowledging and taking responsibility for this risk.",
+ .tokens = {
+ (void *)&cmd_seteeprom_set,
+ (void *)&cmd_seteeprom_port,
+ (void *)&cmd_seteeprom_portnum,
+ (void *)&cmd_seteeprom_eeprom,
+ (void *)&cmd_seteeprom_confirm_str,
+ (void *)&cmd_seteeprom_magic_str,
+ (void *)&cmd_seteeprom_magic,
+ (void *)&cmd_seteeprom_value,
+ (void *)&cmd_seteeprom_token_str,
+ NULL,
+ },
+};
+
/* *** SHOW QUEUE INFO *** */
struct cmd_showqueue_result {
cmdline_fixed_string_t show;
@@ -13397,6 +13523,7 @@ static cmdline_parse_ctx_t builtin_ctx[] = {
&cmd_showport,
&cmd_showqueue,
&cmd_showeeprom,
+ &cmd_seteeprom,
&cmd_showportall,
&cmd_representor_info,
&cmd_showdevice,
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 1d23feec2a..37f074a69b 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1066,6 +1066,45 @@ port_eeprom_display(portid_t port_id)
free(einfo.data);
}
+void
+port_eeprom_set(portid_t port_id,
+ uint32_t magic,
+ uint32_t offset,
+ uint32_t length,
+ uint8_t *value)
+{
+ struct rte_dev_eeprom_info einfo;
+ int len_eeprom;
+ int ret;
+
+ if (port_id_is_invalid(port_id, ENABLED_WARN)) {
+ print_valid_ports();
+ return;
+ }
+
+ len_eeprom = rte_eth_dev_get_eeprom_length(port_id);
+ if (len_eeprom < 0) {
+ fprintf(stderr, "Unable to get EEPROM length: %s\n",
+ rte_strerror(-len_eeprom));
+ return;
+ }
+
+ einfo.data = value;
+ einfo.magic = magic;
+ einfo.length = length;
+ einfo.offset = offset;
+
+ if (einfo.offset + einfo.length > (uint32_t)(len_eeprom)) {
+ fprintf(stderr, "offset and length exceed capabilities of EEPROM length: %d\n",
+ len_eeprom);
+ return;
+ }
+
+ ret = rte_eth_dev_set_eeprom(port_id, &einfo);
+ if (ret != 0)
+ fprintf(stderr, "Unable to set EEPROM: %s\n", rte_strerror(-ret));
+}
+
void
port_module_eeprom_display(portid_t port_id)
{
diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h
index f9ab88d667..56ab7ef1db 100644
--- a/app/test-pmd/testpmd.h
+++ b/app/test-pmd/testpmd.h
@@ -927,6 +927,8 @@ void device_infos_display(const char *identifier);
void port_infos_display(portid_t port_id);
void port_summary_display(portid_t port_id);
void port_eeprom_display(portid_t port_id);
+void port_eeprom_set(portid_t port_id, uint32_t magic, uint32_t offset,
+ uint32_t length, uint8_t *value);
void port_module_eeprom_display(portid_t port_id);
void port_summary_header_display(void);
void rx_queue_infos_display(portid_t port_idi, uint16_t queue_id);
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index f00ab07605..eb19e747b5 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -223,6 +223,24 @@ Display the EEPROM information of a port::
testpmd> show port (port_id) (module_eeprom|eeprom)
+set eeprom
+~~~~~~~~~~
+
+Write a value to the device eeprom of a port at a specific offset::
+
+ testpmd> set port (port_id) eeprom (accept_risk) magic (magic_num) value (value) \
+ offset (offset)
+
+Value should be given in the form of a hex-as-string, with no leading ``0x``.
+The offset field here is optional, if not specified then the offset will default
+to 0.
+
+.. note::
+
+ This is a high-risk command and its misuse may result in unexpected
+ behaviour from the NIC. By inserting "accept_risk" into the command, the user
+ is acknowledging and taking responsibility for this risk.
+
show port rss reta
~~~~~~~~~~~~~~~~~~
--
2.39.1