tools: ynl: add sample for getting page-pool information

Regenerate the tools/ code after netdev spec changes.

Add sample to query page-pool info in a concise fashion:

$ ./page-pool
    eth0[2]	page pools: 10 (zombies: 0)
		refs: 41984 bytes: 171966464 (refs: 0 bytes: 0)
		recycling: 90.3% (alloc: 656:397681 recycle: 89652:270201)

Acked-by: Jesper Dangaard Brouer <hawk@kernel.org>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>

1 files changed, 419 insertions, 0 deletions

diff --git a/tools/net/ynl/generated/netdev-user.c b/tools/net/ynl/generated/netdev-user.c
index b5ffe8cd1144..a7b7019d00f1 100644
--- a/tools/net/ynl/generated/netdev-user.c
+++ b/tools/net/ynl/generated/netdev-user.c
@@ -18,6 +18,11 @@ static const char * const netdev_op_strmap[] = {
 	[NETDEV_CMD_DEV_ADD_NTF] = "dev-add-ntf",
 	[NETDEV_CMD_DEV_DEL_NTF] = "dev-del-ntf",
 	[NETDEV_CMD_DEV_CHANGE_NTF] = "dev-change-ntf",
+	[NETDEV_CMD_PAGE_POOL_GET] = "page-pool-get",
+	[NETDEV_CMD_PAGE_POOL_ADD_NTF] = "page-pool-add-ntf",
+	[NETDEV_CMD_PAGE_POOL_DEL_NTF] = "page-pool-del-ntf",
+	[NETDEV_CMD_PAGE_POOL_CHANGE_NTF] = "page-pool-change-ntf",
+	[NETDEV_CMD_PAGE_POOL_STATS_GET] = "page-pool-stats-get",
 };
 
 const char *netdev_op_str(int op)
@@ -59,6 +64,16 @@ const char *netdev_xdp_rx_metadata_str(enum netdev_xdp_rx_metadata value)
 }
 
 /* Policies */
+struct ynl_policy_attr netdev_page_pool_info_policy[NETDEV_A_PAGE_POOL_MAX + 1] = {
+	[NETDEV_A_PAGE_POOL_ID] = { .name = "id", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_IFINDEX] = { .name = "ifindex", .type = YNL_PT_U32, },
+};
+
+struct ynl_policy_nest netdev_page_pool_info_nest = {
+	.max_attr = NETDEV_A_PAGE_POOL_MAX,
+	.table = netdev_page_pool_info_policy,
+};
+
 struct ynl_policy_attr netdev_dev_policy[NETDEV_A_DEV_MAX + 1] = {
 	[NETDEV_A_DEV_IFINDEX] = { .name = "ifindex", .type = YNL_PT_U32, },
 	[NETDEV_A_DEV_PAD] = { .name = "pad", .type = YNL_PT_IGNORE, },
@@ -72,7 +87,85 @@ struct ynl_policy_nest netdev_dev_nest = {
 	.table = netdev_dev_policy,
 };
 
+struct ynl_policy_attr netdev_page_pool_policy[NETDEV_A_PAGE_POOL_MAX + 1] = {
+	[NETDEV_A_PAGE_POOL_ID] = { .name = "id", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_IFINDEX] = { .name = "ifindex", .type = YNL_PT_U32, },
+	[NETDEV_A_PAGE_POOL_NAPI_ID] = { .name = "napi-id", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_INFLIGHT] = { .name = "inflight", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_INFLIGHT_MEM] = { .name = "inflight-mem", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_DETACH_TIME] = { .name = "detach-time", .type = YNL_PT_UINT, },
+};
+
+struct ynl_policy_nest netdev_page_pool_nest = {
+	.max_attr = NETDEV_A_PAGE_POOL_MAX,
+	.table = netdev_page_pool_policy,
+};
+
+struct ynl_policy_attr netdev_page_pool_stats_policy[NETDEV_A_PAGE_POOL_STATS_MAX + 1] = {
+	[NETDEV_A_PAGE_POOL_STATS_INFO] = { .name = "info", .type = YNL_PT_NEST, .nest = &netdev_page_pool_info_nest, },
+	[NETDEV_A_PAGE_POOL_STATS_ALLOC_FAST] = { .name = "alloc-fast", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW] = { .name = "alloc-slow", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW_HIGH_ORDER] = { .name = "alloc-slow-high-order", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_ALLOC_EMPTY] = { .name = "alloc-empty", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_ALLOC_REFILL] = { .name = "alloc-refill", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_ALLOC_WAIVE] = { .name = "alloc-waive", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHED] = { .name = "recycle-cached", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHE_FULL] = { .name = "recycle-cache-full", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING] = { .name = "recycle-ring", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING_FULL] = { .name = "recycle-ring-full", .type = YNL_PT_UINT, },
+	[NETDEV_A_PAGE_POOL_STATS_RECYCLE_RELEASED_REFCNT] = { .name = "recycle-released-refcnt", .type = YNL_PT_UINT, },
+};
+
+struct ynl_policy_nest netdev_page_pool_stats_nest = {
+	.max_attr = NETDEV_A_PAGE_POOL_STATS_MAX,
+	.table = netdev_page_pool_stats_policy,
+};
+
 /* Common nested types */
+void netdev_page_pool_info_free(struct netdev_page_pool_info *obj)
+{
+}
+
+int netdev_page_pool_info_put(struct nlmsghdr *nlh, unsigned int attr_type,
+			      struct netdev_page_pool_info *obj)
+{
+	struct nlattr *nest;
+
+	nest = mnl_attr_nest_start(nlh, attr_type);
+	if (obj->_present.id)
+		mnl_attr_put_uint(nlh, NETDEV_A_PAGE_POOL_ID, obj->id);
+	if (obj->_present.ifindex)
+		mnl_attr_put_u32(nlh, NETDEV_A_PAGE_POOL_IFINDEX, obj->ifindex);
+	mnl_attr_nest_end(nlh, nest);
+
+	return 0;
+}
+
+int netdev_page_pool_info_parse(struct ynl_parse_arg *yarg,
+				const struct nlattr *nested)
+{
+	struct netdev_page_pool_info *dst = yarg->data;
+	const struct nlattr *attr;
+
+	mnl_attr_for_each_nested(attr, nested) {
+		unsigned int type = mnl_attr_get_type(attr);
+
+		if (type == NETDEV_A_PAGE_POOL_ID) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.id = 1;
+			dst->id = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_IFINDEX) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.ifindex = 1;
+			dst->ifindex = mnl_attr_get_u32(attr);
+		}
+	}
+
+	return 0;
+}
+
 /* ============== NETDEV_CMD_DEV_GET ============== */
 /* NETDEV_CMD_DEV_GET - do */
 void netdev_dev_get_req_free(struct netdev_dev_get_req *req)
@@ -197,6 +290,314 @@ void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp)
 	free(rsp);
 }
 
+/* ============== NETDEV_CMD_PAGE_POOL_GET ============== */
+/* NETDEV_CMD_PAGE_POOL_GET - do */
+void netdev_page_pool_get_req_free(struct netdev_page_pool_get_req *req)
+{
+	free(req);
+}
+
+void netdev_page_pool_get_rsp_free(struct netdev_page_pool_get_rsp *rsp)
+{
+	free(rsp);
+}
+
+int netdev_page_pool_get_rsp_parse(const struct nlmsghdr *nlh, void *data)
+{
+	struct netdev_page_pool_get_rsp *dst;
+	struct ynl_parse_arg *yarg = data;
+	const struct nlattr *attr;
+
+	dst = yarg->data;
+
+	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {
+		unsigned int type = mnl_attr_get_type(attr);
+
+		if (type == NETDEV_A_PAGE_POOL_ID) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.id = 1;
+			dst->id = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_IFINDEX) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.ifindex = 1;
+			dst->ifindex = mnl_attr_get_u32(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_NAPI_ID) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.napi_id = 1;
+			dst->napi_id = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_INFLIGHT) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.inflight = 1;
+			dst->inflight = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_INFLIGHT_MEM) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.inflight_mem = 1;
+			dst->inflight_mem = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_DETACH_TIME) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.detach_time = 1;
+			dst->detach_time = mnl_attr_get_uint(attr);
+		}
+	}
+
+	return MNL_CB_OK;
+}
+
+struct netdev_page_pool_get_rsp *
+netdev_page_pool_get(struct ynl_sock *ys, struct netdev_page_pool_get_req *req)
+{
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
+	struct netdev_page_pool_get_rsp *rsp;
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = ynl_gemsg_start_req(ys, ys->family_id, NETDEV_CMD_PAGE_POOL_GET, 1);
+	ys->req_policy = &netdev_page_pool_nest;
+	yrs.yarg.rsp_policy = &netdev_page_pool_nest;
+
+	if (req->_present.id)
+		mnl_attr_put_uint(nlh, NETDEV_A_PAGE_POOL_ID, req->id);
+
+	rsp = calloc(1, sizeof(*rsp));
+	yrs.yarg.data = rsp;
+	yrs.cb = netdev_page_pool_get_rsp_parse;
+	yrs.rsp_cmd = NETDEV_CMD_PAGE_POOL_GET;
+
+	err = ynl_exec(ys, nlh, &yrs);
+	if (err < 0)
+		goto err_free;
+
+	return rsp;
+
+err_free:
+	netdev_page_pool_get_rsp_free(rsp);
+	return NULL;
+}
+
+/* NETDEV_CMD_PAGE_POOL_GET - dump */
+void netdev_page_pool_get_list_free(struct netdev_page_pool_get_list *rsp)
+{
+	struct netdev_page_pool_get_list *next = rsp;
+
+	while ((void *)next != YNL_LIST_END) {
+		rsp = next;
+		next = rsp->next;
+
+		free(rsp);
+	}
+}
+
+struct netdev_page_pool_get_list *
+netdev_page_pool_get_dump(struct ynl_sock *ys)
+{
+	struct ynl_dump_state yds = {};
+	struct nlmsghdr *nlh;
+	int err;
+
+	yds.ys = ys;
+	yds.alloc_sz = sizeof(struct netdev_page_pool_get_list);
+	yds.cb = netdev_page_pool_get_rsp_parse;
+	yds.rsp_cmd = NETDEV_CMD_PAGE_POOL_GET;
+	yds.rsp_policy = &netdev_page_pool_nest;
+
+	nlh = ynl_gemsg_start_dump(ys, ys->family_id, NETDEV_CMD_PAGE_POOL_GET, 1);
+
+	err = ynl_exec_dump(ys, nlh, &yds);
+	if (err < 0)
+		goto free_list;
+
+	return yds.first;
+
+free_list:
+	netdev_page_pool_get_list_free(yds.first);
+	return NULL;
+}
+
+/* NETDEV_CMD_PAGE_POOL_GET - notify */
+void netdev_page_pool_get_ntf_free(struct netdev_page_pool_get_ntf *rsp)
+{
+	free(rsp);
+}
+
+/* ============== NETDEV_CMD_PAGE_POOL_STATS_GET ============== */
+/* NETDEV_CMD_PAGE_POOL_STATS_GET - do */
+void
+netdev_page_pool_stats_get_req_free(struct netdev_page_pool_stats_get_req *req)
+{
+	netdev_page_pool_info_free(&req->info);
+	free(req);
+}
+
+void
+netdev_page_pool_stats_get_rsp_free(struct netdev_page_pool_stats_get_rsp *rsp)
+{
+	netdev_page_pool_info_free(&rsp->info);
+	free(rsp);
+}
+
+int netdev_page_pool_stats_get_rsp_parse(const struct nlmsghdr *nlh,
+					 void *data)
+{
+	struct netdev_page_pool_stats_get_rsp *dst;
+	struct ynl_parse_arg *yarg = data;
+	const struct nlattr *attr;
+	struct ynl_parse_arg parg;
+
+	dst = yarg->data;
+	parg.ys = yarg->ys;
+
+	mnl_attr_for_each(attr, nlh, sizeof(struct genlmsghdr)) {
+		unsigned int type = mnl_attr_get_type(attr);
+
+		if (type == NETDEV_A_PAGE_POOL_STATS_INFO) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.info = 1;
+
+			parg.rsp_policy = &netdev_page_pool_info_nest;
+			parg.data = &dst->info;
+			if (netdev_page_pool_info_parse(&parg, attr))
+				return MNL_CB_ERROR;
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_ALLOC_FAST) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.alloc_fast = 1;
+			dst->alloc_fast = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.alloc_slow = 1;
+			dst->alloc_slow = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW_HIGH_ORDER) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.alloc_slow_high_order = 1;
+			dst->alloc_slow_high_order = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_ALLOC_EMPTY) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.alloc_empty = 1;
+			dst->alloc_empty = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_ALLOC_REFILL) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.alloc_refill = 1;
+			dst->alloc_refill = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_ALLOC_WAIVE) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.alloc_waive = 1;
+			dst->alloc_waive = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHED) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.recycle_cached = 1;
+			dst->recycle_cached = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHE_FULL) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.recycle_cache_full = 1;
+			dst->recycle_cache_full = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.recycle_ring = 1;
+			dst->recycle_ring = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING_FULL) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.recycle_ring_full = 1;
+			dst->recycle_ring_full = mnl_attr_get_uint(attr);
+		} else if (type == NETDEV_A_PAGE_POOL_STATS_RECYCLE_RELEASED_REFCNT) {
+			if (ynl_attr_validate(yarg, attr))
+				return MNL_CB_ERROR;
+			dst->_present.recycle_released_refcnt = 1;
+			dst->recycle_released_refcnt = mnl_attr_get_uint(attr);
+		}
+	}
+
+	return MNL_CB_OK;
+}
+
+struct netdev_page_pool_stats_get_rsp *
+netdev_page_pool_stats_get(struct ynl_sock *ys,
+			   struct netdev_page_pool_stats_get_req *req)
+{
+	struct ynl_req_state yrs = { .yarg = { .ys = ys, }, };
+	struct netdev_page_pool_stats_get_rsp *rsp;
+	struct nlmsghdr *nlh;
+	int err;
+
+	nlh = ynl_gemsg_start_req(ys, ys->family_id, NETDEV_CMD_PAGE_POOL_STATS_GET, 1);
+	ys->req_policy = &netdev_page_pool_stats_nest;
+	yrs.yarg.rsp_policy = &netdev_page_pool_stats_nest;
+
+	if (req->_present.info)
+		netdev_page_pool_info_put(nlh, NETDEV_A_PAGE_POOL_STATS_INFO, &req->info);
+
+	rsp = calloc(1, sizeof(*rsp));
+	yrs.yarg.data = rsp;
+	yrs.cb = netdev_page_pool_stats_get_rsp_parse;
+	yrs.rsp_cmd = NETDEV_CMD_PAGE_POOL_STATS_GET;
+
+	err = ynl_exec(ys, nlh, &yrs);
+	if (err < 0)
+		goto err_free;
+
+	return rsp;
+
+err_free:
+	netdev_page_pool_stats_get_rsp_free(rsp);
+	return NULL;
+}
+
+/* NETDEV_CMD_PAGE_POOL_STATS_GET - dump */
+void
+netdev_page_pool_stats_get_list_free(struct netdev_page_pool_stats_get_list *rsp)
+{
+	struct netdev_page_pool_stats_get_list *next = rsp;
+
+	while ((void *)next != YNL_LIST_END) {
+		rsp = next;
+		next = rsp->next;
+
+		netdev_page_pool_info_free(&rsp->obj.info);
+		free(rsp);
+	}
+}
+
+struct netdev_page_pool_stats_get_list *
+netdev_page_pool_stats_get_dump(struct ynl_sock *ys)
+{
+	struct ynl_dump_state yds = {};
+	struct nlmsghdr *nlh;
+	int err;
+
+	yds.ys = ys;
+	yds.alloc_sz = sizeof(struct netdev_page_pool_stats_get_list);
+	yds.cb = netdev_page_pool_stats_get_rsp_parse;
+	yds.rsp_cmd = NETDEV_CMD_PAGE_POOL_STATS_GET;
+	yds.rsp_policy = &netdev_page_pool_stats_nest;
+
+	nlh = ynl_gemsg_start_dump(ys, ys->family_id, NETDEV_CMD_PAGE_POOL_STATS_GET, 1);
+
+	err = ynl_exec_dump(ys, nlh, &yds);
+	if (err < 0)
+		goto free_list;
+
+	return yds.first;
+
+free_list:
+	netdev_page_pool_stats_get_list_free(yds.first);
+	return NULL;
+}
+
 static const struct ynl_ntf_info netdev_ntf_info[] =  {
 	[NETDEV_CMD_DEV_ADD_NTF] =  {
 		.alloc_sz	= sizeof(struct netdev_dev_get_ntf),
@@ -216,6 +617,24 @@ static const struct ynl_ntf_info netdev_ntf_info[] =  {
 		.policy		= &netdev_dev_nest,
 		.free		= (void *)netdev_dev_get_ntf_free,
 	},
+	[NETDEV_CMD_PAGE_POOL_ADD_NTF] =  {
+		.alloc_sz	= sizeof(struct netdev_page_pool_get_ntf),
+		.cb		= netdev_page_pool_get_rsp_parse,
+		.policy		= &netdev_page_pool_nest,
+		.free		= (void *)netdev_page_pool_get_ntf_free,
+	},
+	[NETDEV_CMD_PAGE_POOL_DEL_NTF] =  {
+		.alloc_sz	= sizeof(struct netdev_page_pool_get_ntf),
+		.cb		= netdev_page_pool_get_rsp_parse,
+		.policy		= &netdev_page_pool_nest,
+		.free		= (void *)netdev_page_pool_get_ntf_free,
+	},
+	[NETDEV_CMD_PAGE_POOL_CHANGE_NTF] =  {
+		.alloc_sz	= sizeof(struct netdev_page_pool_get_ntf),
+		.cb		= netdev_page_pool_get_rsp_parse,
+		.policy		= &netdev_page_pool_nest,
+		.free		= (void *)netdev_page_pool_get_ntf_free,
+	},
 };
 
 const struct ynl_family ynl_netdev_family =  {