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

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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>
This commit is contained in:
Jakub Kicinski 2023-11-26 15:07:40 -08:00 committed by Paolo Abeni
parent be0096676e
commit 637567e4a3
7 changed files with 776 additions and 2 deletions
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36
tools/include/uapi/linux/netdev.h
View File

@ -64,16 +64,52 @@ enum {
NETDEV_A_DEV_MAX = (__NETDEV_A_DEV_MAX - 1)
};
enum {
NETDEV_A_PAGE_POOL_ID = 1,
NETDEV_A_PAGE_POOL_IFINDEX,
NETDEV_A_PAGE_POOL_NAPI_ID,
NETDEV_A_PAGE_POOL_INFLIGHT,
NETDEV_A_PAGE_POOL_INFLIGHT_MEM,
NETDEV_A_PAGE_POOL_DETACH_TIME,
__NETDEV_A_PAGE_POOL_MAX,
NETDEV_A_PAGE_POOL_MAX = (__NETDEV_A_PAGE_POOL_MAX - 1)
};
enum {
NETDEV_A_PAGE_POOL_STATS_INFO = 1,
NETDEV_A_PAGE_POOL_STATS_ALLOC_FAST = 8,
NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW,
NETDEV_A_PAGE_POOL_STATS_ALLOC_SLOW_HIGH_ORDER,
NETDEV_A_PAGE_POOL_STATS_ALLOC_EMPTY,
NETDEV_A_PAGE_POOL_STATS_ALLOC_REFILL,
NETDEV_A_PAGE_POOL_STATS_ALLOC_WAIVE,
NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHED,
NETDEV_A_PAGE_POOL_STATS_RECYCLE_CACHE_FULL,
NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING,
NETDEV_A_PAGE_POOL_STATS_RECYCLE_RING_FULL,
NETDEV_A_PAGE_POOL_STATS_RECYCLE_RELEASED_REFCNT,
__NETDEV_A_PAGE_POOL_STATS_MAX,
NETDEV_A_PAGE_POOL_STATS_MAX = (__NETDEV_A_PAGE_POOL_STATS_MAX - 1)
};
enum {
NETDEV_CMD_DEV_GET = 1,
NETDEV_CMD_DEV_ADD_NTF,
NETDEV_CMD_DEV_DEL_NTF,
NETDEV_CMD_DEV_CHANGE_NTF,
NETDEV_CMD_PAGE_POOL_GET,
NETDEV_CMD_PAGE_POOL_ADD_NTF,
NETDEV_CMD_PAGE_POOL_DEL_NTF,
NETDEV_CMD_PAGE_POOL_CHANGE_NTF,
NETDEV_CMD_PAGE_POOL_STATS_GET,
__NETDEV_CMD_MAX,
NETDEV_CMD_MAX = (__NETDEV_CMD_MAX - 1)
};
#define NETDEV_MCGRP_MGMT "mgmt"
#define NETDEV_MCGRP_PAGE_POOL "page-pool"
#endif /* _UAPI_LINUX_NETDEV_H */

419
tools/net/ynl/generated/netdev-user.c
View File

@ -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 = {

171
tools/net/ynl/generated/netdev-user.h
View File

@ -21,6 +21,16 @@ const char *netdev_xdp_act_str(enum netdev_xdp_act value);
const char *netdev_xdp_rx_metadata_str(enum netdev_xdp_rx_metadata value);
/* Common nested types */
struct netdev_page_pool_info {
struct {
__u32 id:1;
__u32 ifindex:1;
} _present;
__u64 id;
__u32 ifindex;
};
/* ============== NETDEV_CMD_DEV_GET ============== */
/* NETDEV_CMD_DEV_GET - do */
struct netdev_dev_get_req {
@ -87,4 +97,165 @@ struct netdev_dev_get_ntf {
void netdev_dev_get_ntf_free(struct netdev_dev_get_ntf *rsp);
/* ============== NETDEV_CMD_PAGE_POOL_GET ============== */
/* NETDEV_CMD_PAGE_POOL_GET - do */
struct netdev_page_pool_get_req {
struct {
__u32 id:1;
} _present;
__u64 id;
};
static inline struct netdev_page_pool_get_req *
netdev_page_pool_get_req_alloc(void)
{
return calloc(1, sizeof(struct netdev_page_pool_get_req));
}
void netdev_page_pool_get_req_free(struct netdev_page_pool_get_req *req);
static inline void
netdev_page_pool_get_req_set_id(struct netdev_page_pool_get_req *req, __u64 id)
{
req->_present.id = 1;
req->id = id;
}
struct netdev_page_pool_get_rsp {
struct {
__u32 id:1;
__u32 ifindex:1;
__u32 napi_id:1;
__u32 inflight:1;
__u32 inflight_mem:1;
__u32 detach_time:1;
} _present;
__u64 id;
__u32 ifindex;
__u64 napi_id;
__u64 inflight;
__u64 inflight_mem;
__u64 detach_time;
};
void netdev_page_pool_get_rsp_free(struct netdev_page_pool_get_rsp *rsp);
/*
* Get / dump information about Page Pools.
(Only Page Pools associated with a net_device can be listed.)
*/
struct netdev_page_pool_get_rsp *
netdev_page_pool_get(struct ynl_sock *ys, struct netdev_page_pool_get_req *req);
/* NETDEV_CMD_PAGE_POOL_GET - dump */
struct netdev_page_pool_get_list {
struct netdev_page_pool_get_list *next;
struct netdev_page_pool_get_rsp obj __attribute__((aligned(8)));
};
void netdev_page_pool_get_list_free(struct netdev_page_pool_get_list *rsp);
struct netdev_page_pool_get_list *
netdev_page_pool_get_dump(struct ynl_sock *ys);
/* NETDEV_CMD_PAGE_POOL_GET - notify */
struct netdev_page_pool_get_ntf {
__u16 family;
__u8 cmd;
struct ynl_ntf_base_type *next;
void (*free)(struct netdev_page_pool_get_ntf *ntf);
struct netdev_page_pool_get_rsp obj __attribute__((aligned(8)));
};
void netdev_page_pool_get_ntf_free(struct netdev_page_pool_get_ntf *rsp);
/* ============== NETDEV_CMD_PAGE_POOL_STATS_GET ============== */
/* NETDEV_CMD_PAGE_POOL_STATS_GET - do */
struct netdev_page_pool_stats_get_req {
struct {
__u32 info:1;
} _present;
struct netdev_page_pool_info info;
};
static inline struct netdev_page_pool_stats_get_req *
netdev_page_pool_stats_get_req_alloc(void)
{
return calloc(1, sizeof(struct netdev_page_pool_stats_get_req));
}
void
netdev_page_pool_stats_get_req_free(struct netdev_page_pool_stats_get_req *req);
static inline void
netdev_page_pool_stats_get_req_set_info_id(struct netdev_page_pool_stats_get_req *req,
__u64 id)
{
req->_present.info = 1;
req->info._present.id = 1;
req->info.id = id;
}
static inline void
netdev_page_pool_stats_get_req_set_info_ifindex(struct netdev_page_pool_stats_get_req *req,
__u32 ifindex)
{
req->_present.info = 1;
req->info._present.ifindex = 1;
req->info.ifindex = ifindex;
}
struct netdev_page_pool_stats_get_rsp {
struct {
__u32 info:1;
__u32 alloc_fast:1;
__u32 alloc_slow:1;
__u32 alloc_slow_high_order:1;
__u32 alloc_empty:1;
__u32 alloc_refill:1;
__u32 alloc_waive:1;
__u32 recycle_cached:1;
__u32 recycle_cache_full:1;
__u32 recycle_ring:1;
__u32 recycle_ring_full:1;
__u32 recycle_released_refcnt:1;
} _present;
struct netdev_page_pool_info info;
__u64 alloc_fast;
__u64 alloc_slow;
__u64 alloc_slow_high_order;
__u64 alloc_empty;
__u64 alloc_refill;
__u64 alloc_waive;
__u64 recycle_cached;
__u64 recycle_cache_full;
__u64 recycle_ring;
__u64 recycle_ring_full;
__u64 recycle_released_refcnt;
};
void
netdev_page_pool_stats_get_rsp_free(struct netdev_page_pool_stats_get_rsp *rsp);
/*
* Get page pool statistics.
*/
struct netdev_page_pool_stats_get_rsp *
netdev_page_pool_stats_get(struct ynl_sock *ys,
struct netdev_page_pool_stats_get_req *req);
/* NETDEV_CMD_PAGE_POOL_STATS_GET - dump */
struct netdev_page_pool_stats_get_list {
struct netdev_page_pool_stats_get_list *next;
struct netdev_page_pool_stats_get_rsp obj __attribute__((aligned(8)));
};
void
netdev_page_pool_stats_get_list_free(struct netdev_page_pool_stats_get_list *rsp);
struct netdev_page_pool_stats_get_list *
netdev_page_pool_stats_get_dump(struct ynl_sock *ys);
#endif /* _LINUX_NETDEV_GEN_H */

2
tools/net/ynl/lib/ynl.h
View File

@ -239,7 +239,7 @@ int ynl_error_parse(struct ynl_parse_arg *yarg, const char *msg);
#ifndef MNL_HAS_AUTO_SCALARS
static inline uint64_t mnl_attr_get_uint(const struct nlattr *attr)
{
if (mnl_attr_get_len(attr) == 4)
if (mnl_attr_get_payload_len(attr) == 4)
return mnl_attr_get_u32(attr);
return mnl_attr_get_u64(attr);
}

1
tools/net/ynl/samples/.gitignore vendored
View File

@ -1,3 +1,4 @@
ethtool
devlink
netdev
page-pool

2
tools/net/ynl/samples/Makefile
View File

@ -18,7 +18,7 @@ include $(wildcard *.d)
all: $(BINS)
$(BINS): ../lib/ynl.a ../generated/protos.a
$(BINS): ../lib/ynl.a ../generated/protos.a $(SRCS)
@echo -e '\tCC sample $@'
@$(COMPILE.c) $(CFLAGS_$@) $@.c -o $@.o
@$(LINK.c) $@.o -o $@ $(LDLIBS)

147
tools/net/ynl/samples/page-pool.c Normal file
View File

@ -0,0 +1,147 @@
// SPDX-License-Identifier: GPL-2.0
#define _GNU_SOURCE
#include <stdio.h>
#include <string.h>
#include <ynl.h>
#include <net/if.h>
#include "netdev-user.h"
struct stat {
unsigned int ifc;
struct {
unsigned int cnt;
size_t refs, bytes;
} live[2];
size_t alloc_slow, alloc_fast, recycle_ring, recycle_cache;
};
struct stats_array {
unsigned int i, max;
struct stat *s;
};
static struct stat *find_ifc(struct stats_array *a, unsigned int ifindex)
{
unsigned int i;
for (i = 0; i < a->i; i++) {
if (a->s[i].ifc == ifindex)
return &a->s[i];
}
a->i++;
if (a->i == a->max) {
a->max *= 2;
a->s = reallocarray(a->s, a->max, sizeof(*a->s));
}
a->s[i].ifc = ifindex;
return &a->s[i];
}
static void count(struct stat *s, unsigned int l,
struct netdev_page_pool_get_rsp *pp)
{
s->live[l].cnt++;
if (pp->_present.inflight)
s->live[l].refs += pp->inflight;
if (pp->_present.inflight_mem)
s->live[l].bytes += pp->inflight_mem;
}
int main(int argc, char **argv)
{
struct netdev_page_pool_stats_get_list *pp_stats;
struct netdev_page_pool_get_list *pools;
struct stats_array a = {};
struct ynl_error yerr;
struct ynl_sock *ys;
ys = ynl_sock_create(&ynl_netdev_family, &yerr);
if (!ys) {
fprintf(stderr, "YNL: %s\n", yerr.msg);
return 1;
}
a.max = 128;
a.s = calloc(a.max, sizeof(*a.s));
if (!a.s)
goto err_close;
pools = netdev_page_pool_get_dump(ys);
if (!pools)
goto err_free;
ynl_dump_foreach(pools, pp) {
struct stat *s = find_ifc(&a, pp->ifindex);
count(s, 1, pp);
if (pp->_present.destroyed)
count(s, 0, pp);
}
netdev_page_pool_get_list_free(pools);
pp_stats = netdev_page_pool_stats_get_dump(ys);
if (!pp_stats)
goto err_free;
ynl_dump_foreach(pp_stats, pp) {
struct stat *s = find_ifc(&a, pp->info.ifindex);
if (pp->_present.alloc_fast)
s->alloc_fast += pp->alloc_fast;
if (pp->_present.alloc_slow)
s->alloc_slow += pp->alloc_slow;
if (pp->_present.recycle_ring)
s->recycle_ring += pp->recycle_ring;
if (pp->_present.recycle_cached)
s->recycle_cache += pp->recycle_cached;
}
netdev_page_pool_stats_get_list_free(pp_stats);
for (unsigned int i = 0; i < a.i; i++) {
char ifname[IF_NAMESIZE];
struct stat *s = &a.s[i];
const char *name;
double recycle;
if (!s->ifc) {
name = "<orphan>\t";
} else {
name = if_indextoname(s->ifc, ifname);
if (name)
printf("%8s", name);
printf("[%d]\t", s->ifc);
}
printf("page pools: %u (zombies: %u)\n",
s->live[1].cnt, s->live[0].cnt);
printf("\t\trefs: %zu bytes: %zu (refs: %zu bytes: %zu)\n",
s->live[1].refs, s->live[1].bytes,
s->live[0].refs, s->live[0].bytes);
/* We don't know how many pages are sitting in cache and ring
* so we will under-count the recycling rate a bit.
*/
recycle = (double)(s->recycle_ring + s->recycle_cache) /
(s->alloc_fast + s->alloc_slow) * 100;
printf("\t\trecycling: %.1lf%% (alloc: %zu:%zu recycle: %zu:%zu)\n",
recycle, s->alloc_slow, s->alloc_fast,
s->recycle_ring, s->recycle_cache);
}
ynl_sock_destroy(ys);
return 0;
err_free:
free(a.s);
err_close:
fprintf(stderr, "YNL: %s\n", ys->err.msg);
ynl_sock_destroy(ys);
return 2;
}