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Message-Id: <20220804091802.36136-2-vikas.gupta@broadcom.com>
Date: Thu, 4 Aug 2022 14:48:02 +0530
From: Vikas Gupta <vikas.gupta@...adcom.com>
To: jiri@...dia.com, dsahern@...nel.org, stephen@...workplumber.org
Cc: kuba@...nel.org, netdev@...r.kernel.org, edumazet@...gle.com,
michael.chan@...adcom.com, andrew.gospodarek@...adcom.com,
Vikas Gupta <vikas.gupta@...adcom.com>
Subject: [PATCH iproute2-next v6 1/1] devlink: add support for running selftests
Add commands and helper APIs to run selftests.
Include a selftest id for a non volatile memory i.e. flash.
Also, update the man page and bash-completion for selftests
commands.
Examples:
$ devlink dev selftests run pci/0000:03:00.0 id flash
pci/0000:03:00.0:
flash:
status passed
$ devlink dev selftests show pci/0000:03:00.0
pci/0000:03:00.0
flash
$ devlink dev selftests show pci/0000:03:00.0 -j
{"selftests":{"pci/0000:03:00.0":["flash"]}}
$ devlink dev selftests run pci/0000:03:00.0 id flash -j
{"selftests":{"pci/0000:03:00.0":{"flash":{"status":"passed"}}}}
Signed-off-by: Vikas Gupta <vikas.gupta@...adcom.com>
---
bash-completion/devlink | 30 +++-
devlink/devlink.c | 328 ++++++++++++++++++++++++++++++++++++++++
man/man8/devlink-dev.8 | 46 ++++++
3 files changed, 403 insertions(+), 1 deletion(-)
diff --git a/bash-completion/devlink b/bash-completion/devlink
index 757e03b7..52dc82b3 100644
--- a/bash-completion/devlink
+++ b/bash-completion/devlink
@@ -33,6 +33,11 @@ _devlink_direct_complete()
dev)
value=$(devlink dev show 2>/dev/null)
;;
+ selftests_id)
+ dev=${words[4]}
+ value=$(devlink -j dev selftests show 2>/dev/null \
+ | jq ".selftests[\"$dev\"][]")
+ ;;
param_name)
dev=${words[4]}
value=$(devlink -j dev param show 2>/dev/null \
@@ -275,6 +280,29 @@ _devlink_dev_flash()
esac
}
+# Completion for devlink dev selftests
+_devlink_dev_selftests()
+{
+ if [[ $cword -gt 5 ]]; then
+ _devlink_direct_complete "selftests_id"
+ return
+ fi
+ case "$cword" in
+ 3)
+ COMPREPLY=( $( compgen -W "show run" -- "$cur" ) )
+ return
+ ;;
+ 4)
+ _devlink_direct_complete "dev"
+ return
+ ;;
+ 5)
+ COMPREPLY=( $( compgen -W "id" -- "$cur" ) )
+ return
+ ;;
+ esac
+}
+
# Completion for devlink dev
_devlink_dev()
{
@@ -287,7 +315,7 @@ _devlink_dev()
fi
return
;;
- eswitch|param)
+ eswitch|param|selftests)
_devlink_dev_$command
return
;;
diff --git a/devlink/devlink.c b/devlink/devlink.c
index 1e2cfc3d..21f26246 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -296,6 +296,7 @@ static void ifname_map_free(struct ifname_map *ifname_map)
#define DL_OPT_PORT_FN_RATE_PARENT BIT(51)
#define DL_OPT_LINECARD BIT(52)
#define DL_OPT_LINECARD_TYPE BIT(53)
+#define DL_OPT_SELFTESTS BIT(54)
struct dl_opts {
uint64_t present; /* flags of present items */
@@ -358,6 +359,7 @@ struct dl_opts {
const char *rate_parent_node;
uint32_t linecard_index;
const char *linecard_type;
+ bool selftests_opt[DEVLINK_ATTR_SELFTEST_ID_MAX + 1];
};
struct dl {
@@ -701,6 +703,7 @@ static const enum mnl_attr_data_type devlink_policy[DEVLINK_ATTR_MAX + 1] = {
[DEVLINK_ATTR_LINECARD_STATE] = MNL_TYPE_U8,
[DEVLINK_ATTR_LINECARD_TYPE] = MNL_TYPE_STRING,
[DEVLINK_ATTR_LINECARD_SUPPORTED_TYPES] = MNL_TYPE_NESTED,
+ [DEVLINK_ATTR_SELFTESTS] = MNL_TYPE_NESTED,
};
static const enum mnl_attr_data_type
@@ -1409,6 +1412,17 @@ static struct str_num_map port_fn_opstate_map[] = {
{ .str = NULL, }
};
+static int selftests_get(const char *selftest_name, bool *selftests_opt)
+{
+ if (strcmp(selftest_name, "flash") == 0) {
+ selftests_opt[0] = true;
+ } else {
+ pr_err("Unknown selftest \"%s\"\n", selftest_name);
+ return -EINVAL;
+ }
+ return 0;
+}
+
static int port_flavour_parse(const char *flavour, uint16_t *value)
{
int num;
@@ -1500,6 +1514,7 @@ static const struct dl_args_metadata dl_args_required[] = {
{DL_OPT_PORT_PFNUMBER, "Port PCI PF number is expected."},
{DL_OPT_LINECARD, "Linecard index expected."},
{DL_OPT_LINECARD_TYPE, "Linecard type expected."},
+ {DL_OPT_SELFTESTS, "Test name is expected"},
};
static int dl_args_finding_required_validate(uint64_t o_required,
@@ -1803,6 +1818,21 @@ static int dl_argv_parse(struct dl *dl, uint64_t o_required,
return err;
o_found |= DL_OPT_FLASH_OVERWRITE;
+ } else if (dl_argv_match(dl, "id") &&
+ (o_all & DL_OPT_SELFTESTS)) {
+ dl_arg_inc(dl);
+ while (dl_argc(dl)) {
+ const char *selftest_name;
+ err = dl_argv_str(dl, &selftest_name);
+ if (err)
+ return err;
+ err = selftests_get(selftest_name,
+ opts->selftests_opt);
+ if (err)
+ return err;
+ }
+ o_found |= DL_OPT_SELFTESTS;
+
} else if (dl_argv_match(dl, "reporter") &&
(o_all & DL_OPT_HEALTH_REPORTER_NAME)) {
dl_arg_inc(dl);
@@ -2092,6 +2122,34 @@ dl_reload_limits_put(struct nlmsghdr *nlh, const struct dl_opts *opts)
mnl_attr_put(nlh, DEVLINK_ATTR_RELOAD_LIMITS, sizeof(limits), &limits);
}
+static void
+dl_selftests_put(struct nlmsghdr *nlh, const struct dl_opts *opts)
+{
+ bool test_sel = false;
+ struct nlattr *nest;
+ int id;
+
+ nest = mnl_attr_nest_start(nlh, DEVLINK_ATTR_SELFTESTS);
+
+ for (id = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1;
+ id <= DEVLINK_ATTR_SELFTEST_ID_MAX &&
+ opts->selftests_opt[id]; id++) {
+ if (opts->selftests_opt[id]) {
+ test_sel = true;
+ mnl_attr_put(nlh, id, 0, NULL);
+ }
+ }
+
+ /* No test selected from user, select all */
+ if (!test_sel) {
+ for (id = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1;
+ id <= DEVLINK_ATTR_SELFTEST_ID_MAX; id++)
+ mnl_attr_put(nlh, id, 0, NULL);
+ }
+
+ mnl_attr_nest_end(nlh, nest);
+}
+
static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl)
{
struct dl_opts *opts = &dl->opts;
@@ -2186,6 +2244,8 @@ static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl)
opts->flash_component);
if (opts->present & DL_OPT_FLASH_OVERWRITE)
dl_flash_update_overwrite_put(nlh, opts);
+ if (opts->present & DL_OPT_SELFTESTS)
+ dl_selftests_put(nlh, opts);
if (opts->present & DL_OPT_HEALTH_REPORTER_NAME)
mnl_attr_put_strz(nlh, DEVLINK_ATTR_HEALTH_REPORTER_NAME,
opts->reporter_name);
@@ -2327,6 +2387,8 @@ static void cmd_dev_help(void)
pr_err(" [ action { driver_reinit | fw_activate } ] [ limit no_reset ]\n");
pr_err(" devlink dev info [ DEV ]\n");
pr_err(" devlink dev flash DEV file PATH [ component NAME ] [ overwrite SECTION ]\n");
+ pr_err(" devlink dev selftests show [DEV]\n");
+ pr_err(" devlink dev selftests run DEV [id TESTNAME ]\n");
}
static bool cmp_arr_last_handle(struct dl *dl, const char *bus_name,
@@ -2421,6 +2483,41 @@ static void pr_out_handle(struct dl *dl, struct nlattr **tb)
pr_out_handle_end(dl);
}
+static void pr_out_selftests_handle_start(struct dl *dl, struct nlattr **tb)
+{
+ const char *bus_name = mnl_attr_get_str(tb[DEVLINK_ATTR_BUS_NAME]);
+ const char *dev_name = mnl_attr_get_str(tb[DEVLINK_ATTR_DEV_NAME]);
+ char buf[64];
+
+ sprintf(buf, "%s/%s", bus_name, dev_name);
+
+ if (dl->json_output) {
+ if (should_arr_last_handle_end(dl, bus_name, dev_name))
+ close_json_array(PRINT_JSON, NULL);
+ if (should_arr_last_handle_start(dl, bus_name,
+ dev_name)) {
+ open_json_array(PRINT_JSON, buf);
+ arr_last_handle_set(dl, bus_name, dev_name);
+ }
+ } else {
+ if (should_arr_last_handle_end(dl, bus_name, dev_name))
+ __pr_out_indent_dec();
+ if (should_arr_last_handle_start(dl, bus_name,
+ dev_name)) {
+ pr_out("%s%s", buf, ":");
+ __pr_out_newline();
+ __pr_out_indent_inc();
+ arr_last_handle_set(dl, bus_name, dev_name);
+ }
+ }
+}
+
+static void pr_out_selftests_handle_end(struct dl *dl)
+{
+ if (!dl->json_output)
+ __pr_out_newline();
+}
+
static bool cmp_arr_last_port_handle(struct dl *dl, const char *bus_name,
const char *dev_name, uint32_t port_index)
{
@@ -3946,6 +4043,234 @@ err_socket:
return err;
}
+static const char *devlink_get_selftest_name(int id)
+{
+ switch (id) {
+ case DEVLINK_ATTR_SELFTEST_ID_FLASH:
+ return "flash";
+ default:
+ return "unknown";
+ }
+}
+
+static const enum mnl_attr_data_type
+devlink_selftest_id_policy[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = {
+ [DEVLINK_ATTR_SELFTEST_ID_FLASH] = MNL_TYPE_FLAG,
+};
+
+static int selftests_attr_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type;
+
+ if (mnl_attr_type_valid(attr, DEVLINK_ATTR_SELFTEST_ID_MAX) < 0)
+ return MNL_CB_OK;
+
+ type = mnl_attr_get_type(attr);
+ if (mnl_attr_validate(attr, devlink_selftest_id_policy[type]) < 0)
+ return MNL_CB_ERROR;
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int cmd_dev_selftests_show_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct nlattr *selftests[DEVLINK_ATTR_SELFTEST_ID_MAX + 1] = {};
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+ struct dl *dl = data;
+ int avail = 0;
+ int err;
+ int i;
+
+ mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+
+ if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+ !tb[DEVLINK_ATTR_SELFTESTS])
+ return MNL_CB_ERROR;
+
+ err = mnl_attr_parse_nested(tb[DEVLINK_ATTR_SELFTESTS],
+ selftests_attr_cb, selftests);
+ if (err != MNL_CB_OK)
+ return MNL_CB_ERROR;
+
+ for (i = DEVLINK_ATTR_SELFTEST_ID_UNSPEC + 1;
+ i <= DEVLINK_ATTR_SELFTEST_ID_MAX; i++) {
+ if (!(selftests[i]))
+ continue;
+
+ if (!avail) {
+ pr_out_selftests_handle_start(dl, tb);
+ avail = 1;
+ }
+
+ check_indent_newline(dl);
+ print_string(PRINT_ANY, NULL, "%s", devlink_get_selftest_name(i));
+ }
+
+ if (avail) {
+ pr_out_selftests_handle_end(dl);
+ }
+
+ return MNL_CB_OK;
+}
+
+static const char *devlink_selftest_status_to_str(uint8_t status)
+{
+ switch (status) {
+ case DEVLINK_SELFTEST_STATUS_SKIP:
+ return "skipped";
+ case DEVLINK_SELFTEST_STATUS_PASS:
+ return "passed";
+ case DEVLINK_SELFTEST_STATUS_FAIL:
+ return "failed";
+ default:
+ return "unknown";
+ }
+}
+
+static const enum mnl_attr_data_type
+devlink_selftests_result_policy[DEVLINK_ATTR_SELFTEST_RESULT_MAX + 1] = {
+ [DEVLINK_ATTR_SELFTEST_RESULT] = MNL_TYPE_NESTED,
+ [DEVLINK_ATTR_SELFTEST_RESULT_ID] = MNL_TYPE_U32,
+ [DEVLINK_ATTR_SELFTEST_RESULT_STATUS] = MNL_TYPE_U8,
+};
+
+static int selftests_result_attr_cb(const struct nlattr *attr, void *data)
+{
+ const struct nlattr **tb = data;
+ int type;
+
+ if (mnl_attr_type_valid(attr, DEVLINK_ATTR_SELFTEST_RESULT_MAX) < 0)
+ return MNL_CB_OK;
+
+ type = mnl_attr_get_type(attr);
+ if (mnl_attr_validate(attr, devlink_selftests_result_policy[type]) < 0)
+ return MNL_CB_ERROR;
+
+ tb[type] = attr;
+ return MNL_CB_OK;
+}
+
+static int cmd_dev_selftests_run_cb(const struct nlmsghdr *nlh, void *data)
+{
+ struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
+ struct nlattr *tb[DEVLINK_ATTR_MAX + 1] = {};
+ struct nlattr *selftest;
+ struct dl *dl = data;
+ int avail = 0;
+
+ mnl_attr_parse(nlh, sizeof(*genl), attr_cb, tb);
+
+ if (!tb[DEVLINK_ATTR_BUS_NAME] || !tb[DEVLINK_ATTR_DEV_NAME] ||
+ !tb[DEVLINK_ATTR_SELFTESTS])
+ return MNL_CB_ERROR;
+
+ mnl_attr_for_each_nested(selftest, tb[DEVLINK_ATTR_SELFTESTS]) {
+ struct nlattr *result[DEVLINK_ATTR_SELFTEST_RESULT_MAX + 1] = {};
+ uint8_t status;
+ int err;
+ int id;
+
+ err = mnl_attr_parse_nested(selftest,
+ selftests_result_attr_cb, result);
+ if (err != MNL_CB_OK)
+ return MNL_CB_ERROR;
+
+ if (!result[DEVLINK_ATTR_SELFTEST_RESULT_ID] ||
+ !result[DEVLINK_ATTR_SELFTEST_RESULT_STATUS])
+ return MNL_CB_ERROR;
+
+ if (!avail) {
+ pr_out_section_start(dl, "selftests");
+ __pr_out_handle_start(dl, tb, true, false);
+ __pr_out_indent_inc();
+ avail = 1;
+ if (!dl->json_output)
+ __pr_out_newline();
+ }
+
+ id = mnl_attr_get_u32(result[DEVLINK_ATTR_SELFTEST_RESULT_ID]);
+ status = mnl_attr_get_u8(result[DEVLINK_ATTR_SELFTEST_RESULT_STATUS]);
+
+ pr_out_object_start(dl, devlink_get_selftest_name(id));
+ check_indent_newline(dl);
+ print_string_name_value("status",
+ devlink_selftest_status_to_str(status));
+ pr_out_object_end(dl);
+ if (!dl->json_output)
+ __pr_out_newline();
+ }
+
+ if (avail) {
+ __pr_out_indent_dec();
+ pr_out_handle_end(dl);
+ pr_out_section_end(dl);
+ }
+
+ return MNL_CB_OK;
+}
+
+static int cmd_dev_selftests_run(struct dl *dl)
+{
+ struct nlmsghdr *nlh;
+ uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
+ int err;
+
+ nlh = mnlu_gen_socket_cmd_prepare(&dl->nlg, DEVLINK_CMD_SELFTESTS_RUN, flags);
+
+ err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, DL_OPT_SELFTESTS);
+ if (err)
+ return err;
+
+ if (!(dl->opts.present & DL_OPT_SELFTESTS))
+ dl_selftests_put(nlh, &dl->opts);
+
+ err = mnlu_gen_socket_sndrcv(&dl->nlg, nlh, cmd_dev_selftests_run_cb, dl);
+ return err;
+}
+
+static int cmd_dev_selftests_show(struct dl *dl)
+{
+ uint16_t flags = NLM_F_REQUEST | NLM_F_ACK;
+ struct nlmsghdr *nlh;
+ int err;
+
+ if (dl_argc(dl) == 0)
+ flags |= NLM_F_DUMP;
+
+ nlh = mnlu_gen_socket_cmd_prepare(&dl->nlg, DEVLINK_CMD_SELFTESTS_GET, flags);
+
+ if (dl_argc(dl) > 0) {
+ err = dl_argv_parse_put(nlh, dl, DL_OPT_HANDLE, 0);
+ if (err)
+ return err;
+ }
+
+ pr_out_section_start(dl, "selftests");
+ err = mnlu_gen_socket_sndrcv(&dl->nlg, nlh, cmd_dev_selftests_show_cb, dl);
+ pr_out_section_end(dl);
+ return err;
+}
+
+static int cmd_dev_selftests(struct dl *dl)
+{
+ if (dl_argv_match(dl, "help")) {
+ cmd_dev_help();
+ return 0;
+ } else if (dl_argv_match(dl, "show") ||
+ dl_argv_match(dl, "list") || dl_no_arg(dl)) {
+ dl_arg_inc(dl);
+ return cmd_dev_selftests_show(dl);
+ } else if (dl_argv_match(dl, "run")) {
+ dl_arg_inc(dl);
+ return cmd_dev_selftests_run(dl);
+ }
+ pr_err("Command \"%s\" not found\n", dl_argv(dl));
+ return -ENOENT;
+}
+
static int cmd_dev(struct dl *dl)
{
if (dl_argv_match(dl, "help")) {
@@ -3970,6 +4295,9 @@ static int cmd_dev(struct dl *dl)
} else if (dl_argv_match(dl, "flash")) {
dl_arg_inc(dl);
return cmd_dev_flash(dl);
+ } else if (dl_argv_match(dl, "selftests")) {
+ dl_arg_inc(dl);
+ return cmd_dev_selftests(dl);
}
pr_err("Command \"%s\" not found\n", dl_argv(dl));
return -ENOENT;
diff --git a/man/man8/devlink-dev.8 b/man/man8/devlink-dev.8
index 6906e509..2a776416 100644
--- a/man/man8/devlink-dev.8
+++ b/man/man8/devlink-dev.8
@@ -85,6 +85,20 @@ devlink-dev \- devlink device configuration
.I ID
]
+.ti -8
+.B devlink dev selftests show
+[
+.I DEV
+]
+
+.ti -8
+.B devlink dev selftests run
+.I DEV
+[
+.B id
+.I ID...
+]
+
.SH "DESCRIPTION"
.SS devlink dev show - display devlink device attributes
@@ -249,6 +263,28 @@ should match the component names from
.B "devlink dev info"
and may be driver-dependent.
+.SS devlink dev selftests show - shows supported selftests on devlink device.
+
+.PP
+.I "DEV"
+- specifies the devlink device.
+If this argument is omitted all selftests for devlink devices are listed.
+
+.SS devlink dev selftests run - runs selftests on devlink device.
+
+.PP
+.I "DEV"
+- specifies the devlink device to execute selftests.
+
+.B id
+.I ID...
+- The value of
+.I ID(s)
+should match the selftests shown in
+.B "devlink dev selftests show"
+to execute selftests on the devlink device.
+If this argument is omitted all selftests supported by devlink devices are executed.
+
.SH "EXAMPLES"
.PP
devlink dev show
@@ -296,6 +332,16 @@ Flashing 100%
.br
Flashing done
.RE
+.PP
+devlink dev selftests show pci/0000:01:00.0
+.RS 4
+Shows the supported selftests by the devlink device.
+.RE
+.PP
+devlink dev selftests run pci/0000:01:00.0 id flash
+.RS 4
+Perform a flash test on the devlink device.
+.RE
.SH SEE ALSO
.BR devlink (8),
--
2.31.1
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