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