Skip to content

Failing TM hierarchy initialization #1

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Failing TM hierarchy initialization #1

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
93 changes: 93 additions & 0 deletions examples/skeleton/basicfwd.c
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,19 @@
#include <rte_cycles.h>
#include <rte_lcore.h>
#include <rte_mbuf.h>
#include <rte_tm.h>

/* TM hierarchy IDs */
#define TM_SHAPER_PROFILE_ID 0 /* arbitrary user-chosen ID */
#define TM_SHARED_SHAPER_ID 0 /* unused here */
#define TM_NODE_ID_ROOT 100 /* > number of RX queues */
#define TM_NODE_ID_NON_LEAF 246
#define TM_NODE_ID_QUEUE_BASE 0 /* leaf nodes use queue index 0… */

/* Simple single-rate shaper params */
static struct rte_tm_shaper_params tm_shaper_params = {
.peak = { .rate = 1000000 /* 1 Mbps */}
};

#define RX_RING_SIZE 1024
#define TX_RING_SIZE 1024
Expand Down Expand Up @@ -81,6 +94,86 @@ port_init(uint16_t port, struct rte_mempool *mbuf_pool)
return retval;
}

/********************************************************/
struct rte_tm_error tm_error;
int status;

/* 1) Create shaper profile */
status = rte_tm_shaper_profile_add(port,
TM_SHAPER_PROFILE_ID,
&tm_shaper_params,
&tm_error);
if (status != 0) {
rte_exit(EXIT_FAILURE,
"TM shaper profile add failed: %d\n", status);
}

/* 2) Add root node (non-leaf) */
struct rte_tm_node_params root_params = {
.shaper_profile_id = TM_SHAPER_PROFILE_ID,
.shared_shaper_id = TM_SHARED_SHAPER_ID,
.n_shared_shapers = 0,
.nonleaf = {
.n_sp_priorities = 1
}
};
status = rte_tm_node_add(port,
TM_NODE_ID_ROOT,
RTE_TM_NODE_ID_NULL,
0, /* level */
1, /* weight (unused for root) */
0, /* hierarchy level = 1 */
&root_params,
&tm_error);
if (status != 0) {
rte_exit(EXIT_FAILURE,
"TM root node add failed: %d\n", status);
}

/* 2) Add non-leaf node (child of root) */
status = rte_tm_node_add(port,
TM_NODE_ID_NON_LEAF,
TM_NODE_ID_ROOT,
0, /* level */
1, /* weight (unused for root) */
1, /* hierarchy level = 1 */
&root_params,
&tm_error);
if (status != 0) {
rte_exit(EXIT_FAILURE,
"TM root node add failed: %d\n", status);
}

/* 3) Add leaf node */

struct rte_tm_node_params leaf_params = {
.leaf = {
.cman = RTE_TM_CMAN_TAIL_DROP,
.wred.wred_profile_id = RTE_TM_WRED_PROFILE_ID_NONE
}
};
status = rte_tm_node_add(port,
TM_NODE_ID_QUEUE_BASE,
TM_NODE_ID_NON_LEAF,
0, /* priority */
1, /* weight */
2, /* leaf-level */
&leaf_params,
&tm_error);
if (status != 0) {
rte_exit(EXIT_FAILURE,
"TM leaf node %u add failed: %d %s\n", q, status, tm_error.message);
}

/* 4) Commit the hierarchy */
status = rte_tm_hierarchy_commit(port, /* clear_on_fail = */ 1, &tm_error);
if (status != 0) {
rte_exit(EXIT_FAILURE,
"TM hierarchy commit failed: %d %s\n", status, tm_error.message);
}

/********************************************************/

/* Starting Ethernet port. 8< */
retval = rte_eth_dev_start(port);
/* >8 End of starting of ethernet port. */
Expand Down