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rdma: Add QP resource tracking information

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This patch adds ss-similar interface to view various resource
tracked objects. At this stage, only QP is presented.

1. Get all QPs for the specific device:
$ rdma res show qp link mlx5_4
link mlx5_4/- lqpn 8 type UD state RESET sq-psn 0 pid 0 comm [ib_ipoib]
link mlx5_4/1 lqpn 7 type UD state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 1 type GSI state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 0 type SMI state RTS sq-psn 0 pid 0 comm [ib_core]

$ rdma res show qp link mlx5_4/
link mlx5_4/- lqpn 8 type UD state RESET sq-psn 0 pid 0 comm [ib_ipoib]
link mlx5_4/1 lqpn 7 type UD state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 1 type GSI state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 0 type SMI state RTS sq-psn 0 pid 0 comm [ib_core]

2. Provide illegal port number (0 is illegal):
$ rdma res show qp link mlx5_4/0
Wrong device name

3. Get QPs of specific port:
$ rdma res show qp link mlx5_4/1
link mlx5_4/1 lqpn 7 type UD state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 1 type GSI state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 0 type SMI state RTS sq-psn 0 pid 0 comm [ib_core]

4. Get QPs which have not assigned port yet:
link mlx5_4/- lqpn 8 type UD state RESET sq-psn 0 pid 0 comm [ib_ipoib]

5. Limit to specific Local QPNs:
$ rdma res show qp link mlx5_4/1 lqpn 1-3,7
link mlx5_4/1 lqpn 7 type UD state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 1 type GSI state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 0 type SMI state RTS sq-psn 0 pid 0 comm [ib_core]

. Filter types (strings):
$ rdma res show qp link mlx5_4/1 type UD,gSi
link mlx5_4/1 lqpn 7 type UD state RTS sq-psn 0 pid 0 comm [ib_core]
link mlx5_4/1 lqpn 1 type GSI state RTS sq-psn 0 pid 0 comm [ib_core]

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
This commit is contained in:
Leon Romanovsky 2018-01-31 10:11:54 +02:00 committed by Stephen Hemminger
parent 923aa825ff
commit 8ecac46a60
2 changed files with 336 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

325
rdma/res.c
View File

@ -16,6 +16,9 @@ static int res_help(struct rd *rd)
{
pr_out("Usage: %s resource\n", rd->filename);
pr_out(" resource show [DEV]\n");
pr_out(" resource show [qp]\n");
pr_out(" resource show qp link [DEV/PORT]\n");
pr_out(" resource show qp link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
return 0;
}
@ -129,12 +132,334 @@ static int _res_send_msg(struct rd *rd, uint32_t command, mnl_cb_t callback)
return rd_exec_link(rd, _##name, strict_port); \
}
static const char *path_mig_to_str(uint8_t idx)
{
static const char * const path_mig_str[] = { "MIGRATED",
"REARM", "ARMED" };
if (idx < ARRAY_SIZE(path_mig_str))
return path_mig_str[idx];
return "UNKNOWN";
}
static const char *qp_states_to_str(uint8_t idx)
{
static const char * const qp_states_str[] = { "RESET", "INIT",
"RTR", "RTS", "SQD",
"SQE", "ERR" };
if (idx < ARRAY_SIZE(qp_states_str))
return qp_states_str[idx];
return "UNKNOWN";
}
static const char *qp_types_to_str(uint8_t idx)
{
static const char * const qp_types_str[] = { "SMI", "GSI", "RC",
"UC", "UD", "RAW_IPV6",
"RAW_ETHERTYPE",
"UNKNOWN", "RAW_PACKET",
"XRC_INI", "XRC_TGT" };
if (idx < ARRAY_SIZE(qp_types_str))
return qp_types_str[idx];
return "UNKNOWN";
}
static void print_lqpn(struct rd *rd, uint32_t val)
{
if (rd->json_output)
jsonw_uint_field(rd->jw, "lqpn", val);
else
pr_out("lqpn %u ", val);
}
static void print_rqpn(struct rd *rd, uint32_t val, struct nlattr **nla_line)
{
if (!nla_line[RDMA_NLDEV_ATTR_RES_RQPN])
return;
if (rd->json_output)
jsonw_uint_field(rd->jw, "rqpn", val);
else
pr_out("rqpn %u ", val);
}
static void print_type(struct rd *rd, uint32_t val)
{
if (rd->json_output)
jsonw_string_field(rd->jw, "type",
qp_types_to_str(val));
else
pr_out("type %s ", qp_types_to_str(val));
}
static void print_state(struct rd *rd, uint32_t val)
{
if (rd->json_output)
jsonw_string_field(rd->jw, "state",
qp_states_to_str(val));
else
pr_out("state %s ", qp_states_to_str(val));
}
static void print_rqpsn(struct rd *rd, uint32_t val, struct nlattr **nla_line)
{
if (!nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN])
return;
if (rd->json_output)
jsonw_uint_field(rd->jw, "rq-psn", val);
else
pr_out("rq-psn %u ", val);
}
static void print_sqpsn(struct rd *rd, uint32_t val)
{
if (rd->json_output)
jsonw_uint_field(rd->jw, "sq-psn", val);
else
pr_out("sq-psn %u ", val);
}
static void print_pathmig(struct rd *rd, uint32_t val,
struct nlattr **nla_line)
{
if (!nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE])
return;
if (rd->json_output)
jsonw_string_field(rd->jw,
"path-mig-state",
path_mig_to_str(val));
else
pr_out("path-mig-state %s ", path_mig_to_str(val));
}
static void print_pid(struct rd *rd, uint32_t val)
{
if (rd->json_output)
jsonw_uint_field(rd->jw, "pid", val);
else
pr_out("pid %u ", val);
}
static void print_comm(struct rd *rd, const char *str,
struct nlattr **nla_line)
{
char tmp[18];
if (rd->json_output) {
/* Don't beatify output in JSON format */
jsonw_string_field(rd->jw, "comm", str);
return;
}
if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
snprintf(tmp, sizeof(tmp), "%s", str);
else
snprintf(tmp, sizeof(tmp), "[%s]", str);
pr_out("comm %s ", tmp);
}
static void print_link(struct rd *rd, uint32_t idx, const char *name,
uint32_t port, struct nlattr **nla_line)
{
if (rd->json_output) {
jsonw_uint_field(rd->jw, "ifindex", idx);
if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
jsonw_uint_field(rd->jw, "port", port);
jsonw_string_field(rd->jw, "ifname", name);
} else {
if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
pr_out("link %s/%u ", name, port);
else
pr_out("link %s/- ", name);
}
}
static char *get_task_name(uint32_t pid)
{
char *comm;
FILE *f;
if (asprintf(&comm, "/proc/%d/comm", pid) < 0)
return NULL;
f = fopen(comm, "r");
free(comm);
if (!f)
return NULL;
if (fscanf(f, "%ms\n", &comm) != 1)
comm = NULL;
fclose(f);
return comm;
}
static int res_qp_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;
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_QP])
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_QP];
mnl_attr_for_each_nested(nla_entry, nla_table) {
struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
uint32_t lqpn, rqpn = 0, rq_psn = 0, sq_psn;
uint8_t type, state, path_mig_state = 0;
uint32_t port = 0, pid = 0;
char *comm = NULL;
int err;
err = mnl_attr_parse_nested(nla_entry, rd_attr_cb, nla_line);
if (err != MNL_CB_OK)
return MNL_CB_ERROR;
if (!nla_line[RDMA_NLDEV_ATTR_RES_LQPN] ||
!nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN] ||
!nla_line[RDMA_NLDEV_ATTR_RES_TYPE] ||
!nla_line[RDMA_NLDEV_ATTR_RES_STATE] ||
(!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
!nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
return MNL_CB_ERROR;
}
if (nla_line[RDMA_NLDEV_ATTR_PORT_INDEX])
port = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_PORT_INDEX]);
if (port != rd->port_idx)
continue;
lqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LQPN]);
if (rd_check_is_filtered(rd, "lqpn", lqpn))
continue;
if (nla_line[RDMA_NLDEV_ATTR_RES_RQPN]) {
rqpn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQPN]);
if (rd_check_is_filtered(rd, "rqpn", rqpn))
continue;
} else {
if (rd_check_is_key_exist(rd, "rqpn"))
continue;
}
if (nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]) {
rq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RQ_PSN]);
if (rd_check_is_filtered(rd, "rq-psn", rq_psn))
continue;
} else {
if (rd_check_is_key_exist(rd, "rq-psn"))
continue;
}
sq_psn = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_SQ_PSN]);
if (rd_check_is_filtered(rd, "sq-psn", sq_psn))
continue;
if (nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]) {
path_mig_state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE]);
if (rd_check_is_string_filtered(rd, "path-mig-state", path_mig_to_str(path_mig_state)))
continue;
} else {
if (rd_check_is_key_exist(rd, "path-mig-state"))
continue;
}
type = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_TYPE]);
if (rd_check_is_string_filtered(rd, "type", qp_types_to_str(type)))
continue;
state = mnl_attr_get_u8(nla_line[RDMA_NLDEV_ATTR_RES_STATE]);
if (rd_check_is_string_filtered(rd, "state", qp_states_to_str(state)))
continue;
if (nla_line[RDMA_NLDEV_ATTR_RES_PID]) {
pid = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PID]);
comm = get_task_name(pid);
}
if (rd_check_is_filtered(rd, "pid", pid))
continue;
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->json_output)
jsonw_start_array(rd->jw);
print_link(rd, idx, name, port, nla_line);
print_lqpn(rd, lqpn);
print_rqpn(rd, rqpn, nla_line);
print_type(rd, type);
print_state(rd, state);
print_rqpsn(rd, rq_psn, nla_line);
print_sqpsn(rd, sq_psn);
print_pathmig(rd, path_mig_state, nla_line);
print_pid(rd, pid);
print_comm(rd, comm, nla_line);
if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
free(comm);
if (rd->json_output)
jsonw_end_array(rd->jw);
else
pr_out("\n");
}
return MNL_CB_OK;
}
RES_FUNC(res_no_args, RDMA_NLDEV_CMD_RES_GET, NULL, true);
static const struct
filters qp_valid_filters[MAX_NUMBER_OF_FILTERS] = {{ .name = "link",
.is_number = false },
{ .name = "lqpn",
.is_number = true },
{ .name = "rqpn",
.is_number = true },
{ .name = "pid",
.is_number = true },
{ .name = "sq-psn",
.is_number = true },
{ .name = "rq-psn",
.is_number = true },
{ .name = "type",
.is_number = false },
{ .name = "path-mig-state",
.is_number = false },
{ .name = "state",
.is_number = false } };
RES_FUNC(res_qp, RDMA_NLDEV_CMD_RES_QP_GET, qp_valid_filters, false);
static int res_show(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, res_no_args },
{ "qp", res_qp },
{ 0 }
};

11
rdma/utils.c
View File

@ -360,6 +360,17 @@ static const enum mnl_attr_data_type nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY] = MNL_TYPE_NESTED,
[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_NAME] = MNL_TYPE_NUL_STRING,
[RDMA_NLDEV_ATTR_RES_SUMMARY_ENTRY_CURR] = MNL_TYPE_U64,
[RDMA_NLDEV_ATTR_RES_QP] = MNL_TYPE_NESTED,
[RDMA_NLDEV_ATTR_RES_QP_ENTRY] = MNL_TYPE_NESTED,
[RDMA_NLDEV_ATTR_RES_LQPN] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_RQPN] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_RQ_PSN] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_SQ_PSN] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_PATH_MIG_STATE] = MNL_TYPE_U8,
[RDMA_NLDEV_ATTR_RES_TYPE] = MNL_TYPE_U8,
[RDMA_NLDEV_ATTR_RES_STATE] = MNL_TYPE_U8,
[RDMA_NLDEV_ATTR_RES_PID] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_KERN_NAME] = MNL_TYPE_NUL_STRING,
};
int rd_attr_cb(const struct nlattr *attr, void *data)