netdev - [net-next PATCH v1 6/9] netdev-genl: spec: Add irq in netdev netlink YAML spec

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Date: Fri, 28 Jul 2023 17:47:22 -0700
From: Amritha Nambiar <amritha.nambiar@...el.com>
To: netdev@...r.kernel.org, kuba@...nel.org, davem@...emloft.net
Cc: sridhar.samudrala@...el.com, amritha.nambiar@...el.com
Subject: [net-next PATCH v1 6/9] netdev-genl: spec: Add irq in netdev
 netlink YAML spec

Add support in netlink spec(netdev.yaml) for interrupt number
among the NAPI attributes. Add code generated from the spec.

Signed-off-by: Amritha Nambiar <amritha.nambiar@...el.com>
---
 Documentation/netlink/specs/netdev.yaml |    4 ++++
 include/uapi/linux/netdev.h             |    1 +
 tools/include/uapi/linux/netdev.h       |    1 +
 tools/net/ynl/generated/netdev-user.c   |    6 ++++++
 tools/net/ynl/generated/netdev-user.h   |    2 ++
 5 files changed, 14 insertions(+)

diff --git a/Documentation/netlink/specs/netdev.yaml b/Documentation/netlink/specs/netdev.yaml
index 507cea4f2319..c7f72038184d 100644
--- a/Documentation/netlink/specs/netdev.yaml
+++ b/Documentation/netlink/specs/netdev.yaml
@@ -85,6 +85,10 @@ attribute-sets:
         doc: list of tx queues associated with a napi
         type: u32
         multi-attr: true
+      -
+        name: irq
+        doc: The associated interrupt vector number for the napi
+        type: u32
   -
     name: napi
     attributes:
diff --git a/include/uapi/linux/netdev.h b/include/uapi/linux/netdev.h
index bc06f692d9fd..17782585be72 100644
--- a/include/uapi/linux/netdev.h
+++ b/include/uapi/linux/netdev.h
@@ -52,6 +52,7 @@ enum {
 	NETDEV_A_NAPI_INFO_ENTRY_NAPI_ID = 1,
 	NETDEV_A_NAPI_INFO_ENTRY_RX_QUEUES,
 	NETDEV_A_NAPI_INFO_ENTRY_TX_QUEUES,
+	NETDEV_A_NAPI_INFO_ENTRY_IRQ,
 
 	__NETDEV_A_NAPI_INFO_ENTRY_MAX,
 	NETDEV_A_NAPI_INFO_ENTRY_MAX = (__NETDEV_A_NAPI_INFO_ENTRY_MAX - 1)
diff --git a/tools/include/uapi/linux/netdev.h b/tools/include/uapi/linux/netdev.h
index bc06f692d9fd..17782585be72 100644
--- a/tools/include/uapi/linux/netdev.h
+++ b/tools/include/uapi/linux/netdev.h
@@ -52,6 +52,7 @@ enum {
 	NETDEV_A_NAPI_INFO_ENTRY_NAPI_ID = 1,
 	NETDEV_A_NAPI_INFO_ENTRY_RX_QUEUES,
 	NETDEV_A_NAPI_INFO_ENTRY_TX_QUEUES,
+	NETDEV_A_NAPI_INFO_ENTRY_IRQ,
 
 	__NETDEV_A_NAPI_INFO_ENTRY_MAX,
 	NETDEV_A_NAPI_INFO_ENTRY_MAX = (__NETDEV_A_NAPI_INFO_ENTRY_MAX - 1)
diff --git a/tools/net/ynl/generated/netdev-user.c b/tools/net/ynl/generated/netdev-user.c
index e9a6c8cb5c68..74c24be5641c 100644
--- a/tools/net/ynl/generated/netdev-user.c
+++ b/tools/net/ynl/generated/netdev-user.c
@@ -51,6 +51,7 @@ struct ynl_policy_attr netdev_napi_info_entry_policy[NETDEV_A_NAPI_INFO_ENTRY_MA
 	[NETDEV_A_NAPI_INFO_ENTRY_NAPI_ID] = { .name = "napi-id", .type = YNL_PT_U32, },
 	[NETDEV_A_NAPI_INFO_ENTRY_RX_QUEUES] = { .name = "rx-queues", .type = YNL_PT_U32, },
 	[NETDEV_A_NAPI_INFO_ENTRY_TX_QUEUES] = { .name = "tx-queues", .type = YNL_PT_U32, },
+	[NETDEV_A_NAPI_INFO_ENTRY_IRQ] = { .name = "irq", .type = YNL_PT_U32, },
 };
 
 struct ynl_policy_nest netdev_napi_info_entry_nest = {
@@ -113,6 +114,11 @@ int netdev_napi_info_entry_parse(struct ynl_parse_arg *yarg,
 			n_rx_queues++;
 		} else if (type == NETDEV_A_NAPI_INFO_ENTRY_TX_QUEUES) {
 			n_tx_queues++;
+		} else if (type == NETDEV_A_NAPI_INFO_ENTRY_IRQ) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.irq = 1;
+			dst->irq = mnl_attr_get_u32(attr);
 		}
 	}
 
diff --git a/tools/net/ynl/generated/netdev-user.h b/tools/net/ynl/generated/netdev-user.h
index 9274711bd862..a0833eb9a52f 100644
--- a/tools/net/ynl/generated/netdev-user.h
+++ b/tools/net/ynl/generated/netdev-user.h
@@ -23,6 +23,7 @@ const char *netdev_xdp_act_str(enum netdev_xdp_act value);
 struct netdev_napi_info_entry {
 	struct {
 		__u32 napi_id:1;
+		__u32 irq:1;
 	} _present;
 
 	__u32 napi_id;
@@ -30,6 +31,7 @@ struct netdev_napi_info_entry {
 	__u32 *rx_queues;
 	unsigned int n_tx_queues;
 	__u32 *tx_queues;
+	__u32 irq;
 };
 
 /* ============== NETDEV_CMD_DEV_GET ============== */