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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* res-cq.c RDMA tool
* Authors: Leon Romanovsky <leonro@mellanox.com>
*/
#include "res.h"
#include <inttypes.h>
static const char *poll_ctx_to_str(uint8_t idx)
{
static const char * const cm_id_states_str[] = {
"DIRECT", "SOFTIRQ", "WORKQUEUE", "UNBOUND_WORKQUEUE"};
if (idx < ARRAY_SIZE(cm_id_states_str))
return cm_id_states_str[idx];
return "UNKNOWN";
}
static void print_poll_ctx(uint8_t poll_ctx, struct nlattr *attr)
{
if (!attr)
return;
print_string(PRINT_ANY, "poll-ctx", "poll-ctx %s ", poll_ctx_to_str(poll_ctx));
}
static void print_cq_dim_setting(struct nlattr *attr)
{
uint8_t dim_setting;
if (!attr)
return;
dim_setting = mnl_attr_get_u8(attr);
if (dim_setting > 1)
return;
print_on_off(PRINT_ANY, "adaptive-moderation", "adaptive-moderation %s ", dim_setting);
}
static int res_cq_line_raw(struct rd *rd, const char *name, int idx,
struct nlattr **nla_line)
{
if (!nla_line[RDMA_NLDEV_ATTR_RES_RAW])
return MNL_CB_ERROR;
open_json_object(NULL);
print_dev(idx, name);
print_raw_data(rd, nla_line);
close_json_object();
newline();
return MNL_CB_OK;
}
static int res_cq_line(struct rd *rd, const char *name, int idx,
struct nlattr **nla_line)
{
char *comm = NULL;
uint32_t pid = 0;
uint8_t poll_ctx = 0;
uint32_t ctxn = 0;
uint32_t cqn = 0;
uint64_t users;
uint32_t cqe;
SPRINT_BUF(b);
if (!nla_line[RDMA_NLDEV_ATTR_RES_CQE] ||
!nla_line[RDMA_NLDEV_ATTR_RES_USECNT])
return MNL_CB_ERROR;
cqe = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
users = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
if (rd_is_filtered_attr(rd, "users", users,
nla_line[RDMA_NLDEV_ATTR_RES_USECNT]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX])
poll_ctx =
mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
if (rd_is_string_filtered_attr(rd, "poll-ctx",
poll_ctx_to_str(poll_ctx),
nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
if (!get_task_name(pid, b, sizeof(b)))
comm = b;
} else if (nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]) {
/* discard const from mnl_attr_get_str */
comm = (char *)mnl_attr_get_str(
nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME]);
}
if (rd_is_filtered_attr(rd, "pid", pid,
nla_line[RDMA_NLDEV_ATTR_RES_PID]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_CQN])
cqn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
if (rd_is_filtered_attr(rd, "cqn", cqn,
nla_line[RDMA_NLDEV_ATTR_RES_CQN]))
goto out;
if (nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
ctxn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
if (rd_is_filtered_attr(rd, "ctxn", ctxn,
nla_line[RDMA_NLDEV_ATTR_RES_CTXN]))
goto out;
open_json_object(NULL);
print_dev(idx, name);
res_print_u32("cqn", cqn, nla_line[RDMA_NLDEV_ATTR_RES_CQN]);
res_print_u32("cqe", cqe, nla_line[RDMA_NLDEV_ATTR_RES_CQE]);
res_print_u64("users", users, nla_line[RDMA_NLDEV_ATTR_RES_USECNT]);
print_poll_ctx(poll_ctx, nla_line[RDMA_NLDEV_ATTR_RES_POLL_CTX]);
print_cq_dim_setting(nla_line[RDMA_NLDEV_ATTR_DEV_DIM]);
res_print_u32("ctxn", ctxn, nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
res_print_u32("pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
print_comm(comm, nla_line);
print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
close_json_object();
newline();
out:
return MNL_CB_OK;
}
int res_cq_idx_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct rd *rd = data;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME])
return MNL_CB_ERROR;
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
return (rd->show_raw) ? res_cq_line_raw(rd, name, idx, tb) :
res_cq_line(rd, name, idx, tb);
}
int res_cq_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
struct nlattr *nla_table, *nla_entry;
struct rd *rd = data;
int ret = MNL_CB_OK;
const char *name;
uint32_t idx;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (!tb[RDMA_NLDEV_ATTR_DEV_INDEX] || !tb[RDMA_NLDEV_ATTR_DEV_NAME] ||
!tb[RDMA_NLDEV_ATTR_RES_CQ])
return MNL_CB_ERROR;
name = mnl_attr_get_str(tb[RDMA_NLDEV_ATTR_DEV_NAME]);
idx = mnl_attr_get_u32(tb[RDMA_NLDEV_ATTR_DEV_INDEX]);
nla_table = tb[RDMA_NLDEV_ATTR_RES_CQ];
mnl_attr_for_each_nested(nla_entry, nla_table) {
struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
ret = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
if (ret != MNL_CB_OK)
break;
ret = (rd->show_raw) ? res_cq_line_raw(rd, name, idx, nla_line) :
res_cq_line(rd, name, idx, nla_line);
if (ret != MNL_CB_OK)
break;
}
return ret;
}
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