From: Saeed Mahameed <saeed@kernel.org>
To: stephen@networkplumber.org, dsahern@gmail.com,
Jiri Pirko <jiri@nvidia.com>,
jiri@resnulli.us
Cc: netdev@vger.kernel.org, Saeed Mahameed <saeedm@nvidia.com>
Subject: [PATCH iproute2 08/10] devlink: helper function to put param value mnl attributes from dl_params
Date: Thu, 27 Feb 2025 18:18:35 -0800 [thread overview]
Message-ID: <20250228021837.880041-9-saeed@kernel.org> (raw)
In-Reply-To: <20250228021837.880041-1-saeed@kernel.org>
From: Saeed Mahameed <saeedm@nvidia.com>
Introduce a helper function that takes a dl_param and calls the type
corresponding mnl_attr_put_<type>() equivalent to populate the nlmmsg
with the parameter value.
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
devlink/devlink.c | 88 +++++++++++++++++++++--------------------------
1 file changed, 40 insertions(+), 48 deletions(-)
diff --git a/devlink/devlink.c b/devlink/devlink.c
index 938eb3fb..3ecf8d9a 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -3741,6 +3741,38 @@ static int dl_param_cmp(struct dl_param *p1, struct dl_param *p2)
return 0;
}
+/* dl_param_mnl_put: put the value in the netlink message
+ * @nlh: netlink message
+ * @param: dl_param struct containing the value
+ * Returns: 0 on success, -errno on failure
+ */
+static int dl_param_mnl_put(struct nlmsghdr *nlh, struct dl_param *param)
+{
+ mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_TYPE, param->type);
+ switch (param->type) {
+ case DEVLINK_DYN_ATTR_TYPE_U8:
+ mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, param->value.vu8);
+ break;
+ case DEVLINK_DYN_ATTR_TYPE_U16:
+ mnl_attr_put_u16(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, param->value.vu16);
+ break;
+ case DEVLINK_DYN_ATTR_TYPE_U32:
+ mnl_attr_put_u32(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, param->value.vu32);
+ break;
+ case DEVLINK_DYN_ATTR_TYPE_FLAG:
+ if (param->value.vbool)
+ mnl_attr_put(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, 0, NULL);
+ break;
+ case DEVLINK_DYN_ATTR_TYPE_STRING:
+ mnl_attr_put_strz(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, param->value.vstr);
+ break;
+ default:
+ pr_err("Value type(%d) not supported\n", param->type);
+ return -ENOTSUP;
+ }
+ return 0;
+}
+
static int cmd_param_set_cb(const struct nlmsghdr *nlh, void *data)
{
struct genlmsghdr *genl = mnl_nlmsg_get_payload(nlh);
@@ -3857,30 +3889,10 @@ static int cmd_dev_param_set(struct dl *dl)
if (!err) /* Value is the same */
return 0;
- mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_TYPE, kparam.type);
- switch (kparam.type) {
- case DEVLINK_DYN_ATTR_TYPE_U8:
- mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, uparam.value.vu8);
- break;
- case DEVLINK_DYN_ATTR_TYPE_U16:
- mnl_attr_put_u16(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, uparam.value.vu16);
- break;
- case DEVLINK_DYN_ATTR_TYPE_U32:
- mnl_attr_put_u32(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, uparam.value.vu32);
- break;
- case DEVLINK_DYN_ATTR_TYPE_FLAG:
- if (uparam.value.vbool)
- mnl_attr_put(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA,
- 0, NULL);
- break;
- case DEVLINK_DYN_ATTR_TYPE_STRING:
- mnl_attr_put_strz(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA,
- uparam.value.vstr);
- break;
- default:
- printf("Value type not supported\n");
- return -ENOTSUP;
- }
+ err = dl_param_mnl_put(nlh, &uparam);
+ if (err)
+ return err;
+
return mnlu_gen_socket_sndrcv(&dl->nlg, nlh, NULL, NULL);
err_param_value_parse:
@@ -5317,30 +5329,10 @@ static int cmd_port_param_set(struct dl *dl)
if (!err) /* Value is the same */
return 0;
- mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_TYPE, kparam.type);
- switch (kparam.type) {
- case DEVLINK_DYN_ATTR_TYPE_U8:
- mnl_attr_put_u8(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, uparam.value.vu8);
- break;
- case DEVLINK_DYN_ATTR_TYPE_U16:
- mnl_attr_put_u16(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, uparam.value.vu16);
- break;
- case DEVLINK_DYN_ATTR_TYPE_U32:
- mnl_attr_put_u32(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA, uparam.value.vu32);
- break;
- case DEVLINK_DYN_ATTR_TYPE_FLAG:
- if (uparam.value.vbool)
- mnl_attr_put(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA,
- 0, NULL);
- break;
- case DEVLINK_DYN_ATTR_TYPE_STRING:
- mnl_attr_put_strz(nlh, DEVLINK_ATTR_PARAM_VALUE_DATA,
- uparam.value.vstr);
- break;
- default:
- printf("Value type not supported\n");
- return -ENOTSUP;
- }
+ err = dl_param_mnl_put(nlh, &uparam);
+ if (err)
+ return err;
+
return mnlu_gen_socket_sndrcv(&dl->nlg, nlh, NULL, NULL);
err_param_value_parse:
--
2.48.1
next prev parent reply other threads:[~2025-02-28 2:19 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-28 2:18 [PATCH iproute2 00/10] devlink params nested multi-attribute values Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 01/10] update kernel headers Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 02/10] devlink: use dynamic attributes enum Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 03/10] devlink: param show: handle multi-attribute values Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 04/10] devlink: param set: reuse cmd_dev_param_set_cb for port params set Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 05/10] devlink: rename param_ctx to dl_param Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 06/10] devlink: helper function to read user param input into dl_param Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 07/10] devlink: helper function to compare dl_params Saeed Mahameed
2025-02-28 2:18 ` Saeed Mahameed [this message]
2025-02-28 2:18 ` [PATCH iproute2 09/10] devlink: helper function to parse param vlaue attributes into dl_param Saeed Mahameed
2025-02-28 2:18 ` [PATCH iproute2 10/10] devlink: params set: add support for nested attributes values Saeed Mahameed
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