From: Neta Ostrovsky <netao@xxxxxxxxxx>
Sample output:
$ rdma res show ctx
dev ibp8s0f0 ctxn 0 pid 980 comm ibv_rc_pingpong
dev ibp8s0f0 ctxn 1 pid 981 comm ibv_rc_pingpong
dev ibp8s0f0 ctxn 2 pid 992 comm ibv_rc_pingpong
dev ibp8s0f1 ctxn 0 pid 984 comm ibv_rc_pingpong
dev ibp8s0f1 ctxn 1 pid 987 comm ibv_rc_pingpong
$ rdma res show ctx dev ibp8s0f1
dev ibp8s0f1 ctxn 0 pid 984 comm ibv_rc_pingpong
dev ibp8s0f1 ctxn 1 pid 987 comm ibv_rc_pingpong
Reviewed-by: Mark Zhang <markz@xxxxxxxxxxxx>
Reviewed-by: Ido Kalir <idok@xxxxxxxxxx>
Signed-off-by: Neta Ostrovsky <netao@xxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
man/man8/rdma-resource.8 | 7 ++-
rdma/Makefile | 2 +-
rdma/res-ctx.c | 103 +++++++++++++++++++++++++++++++++++++++
rdma/res.c | 5 +-
rdma/res.h | 12 +++++
rdma/utils.c | 3 ++
6 files changed, 129 insertions(+), 3 deletions(-)
create mode 100644 rdma/res-ctx.c
diff --git a/man/man8/rdma-resource.8 b/man/man8/rdma-resource.8
index 8d0d14c6..c2102853 100644
--- a/man/man8/rdma-resource.8
+++ b/man/man8/rdma-resource.8
@@ -13,7 +13,7 @@ rdma-resource \- rdma resource configuration
.ti -8
.IR RESOURCE " := { "
-.BR cm_id " | " cq " | " mr " | " pd " | " qp " }"
+.BR cm_id " | " cq " | " mr " | " pd " | " qp " | " ctx " }"
.sp
.ti -8
@@ -103,6 +103,11 @@ rdma resource show cq pid 30489
Show CQs belonging to pid 30489
.RE
.PP
+rdma resource show ctx ctxn 1
+.RS 4
+Show contexts that have index equal to 1.
+.RE
+.PP
.SH SEE ALSO
.BR rdma (8),
diff --git a/rdma/Makefile b/rdma/Makefile
index aa5ce822..32f504fc 100644
--- a/rdma/Makefile
+++ b/rdma/Makefile
@@ -7,7 +7,7 @@ ifeq ($(HAVE_MNL),y)
CFLAGS += -I./include/uapi/
RDMA_OBJ = rdma.o utils.o dev.o link.o res.o res-pd.o res-mr.o res-cq.o \
- res-cmid.o res-qp.o sys.o stat.o stat-mr.o
+ res-cmid.o res-qp.o sys.o stat.o stat-mr.o res-ctx.o
TARGETS += rdma
endif
diff --git a/rdma/res-ctx.c b/rdma/res-ctx.c
new file mode 100644
index 00000000..30afe97a
--- /dev/null
+++ b/rdma/res-ctx.c
@@ -0,0 +1,103 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * res-ctx.c RDMA tool
+ * Authors: Neta Ostrovsky <netao@xxxxxxxxxx>
+ */
+
+#include "res.h"
+#include <inttypes.h>
+
+static int res_ctx_line(struct rd *rd, const char *name, int idx,
+ struct nlattr **nla_line)
+{
+ char *comm = NULL;
+ uint32_t ctxn = 0;
+ uint32_t pid = 0;
+
+ if (!nla_line[RDMA_NLDEV_ATTR_RES_CTXN])
+ return MNL_CB_ERROR;
+
+ 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_is_filtered_attr(rd, "pid", pid,
+ nla_line[RDMA_NLDEV_ATTR_RES_PID]))
+ 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;
+
+ 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]);
+
+ open_json_object(NULL);
+ print_dev(rd, idx, name);
+ res_print_uint(rd, "ctxn", ctxn, nla_line[RDMA_NLDEV_ATTR_RES_CTXN]);
+ res_print_uint(rd, "pid", pid, nla_line[RDMA_NLDEV_ATTR_RES_PID]);
+ print_comm(rd, comm, nla_line);
+
+ print_driver_table(rd, nla_line[RDMA_NLDEV_ATTR_DRIVER]);
+ newline(rd);
+
+out:
+ if (nla_line[RDMA_NLDEV_ATTR_RES_PID])
+ free(comm);
+ return MNL_CB_OK;
+}
+
+int res_ctx_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 res_ctx_line(rd, name, idx, tb);
+}
+
+int res_ctx_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_CTX])
+ 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_CTX];
+
+ 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 = res_ctx_line(rd, name, idx, nla_line);
+ if (ret != MNL_CB_OK)
+ break;
+ }
+ return ret;
+}
diff --git a/rdma/res.c b/rdma/res.c
index f42ae938..dbc3179e 100644
--- a/rdma/res.c
+++ b/rdma/res.c
@@ -11,7 +11,7 @@ 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|cm_id|pd|mr|cq]\n");
+ pr_out(" resource show [qp|cm_id|pd|mr|cq|ctx]\n");
pr_out(" resource show qp link [DEV/PORT]\n");
pr_out(" resource show qp link [DEV/PORT] [FILTER-NAME FILTER-VALUE]\n");
pr_out(" resource show cm_id link [DEV/PORT]\n");
@@ -22,6 +22,8 @@ static int res_help(struct rd *rd)
pr_out(" resource show pd dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
pr_out(" resource show mr dev [DEV]\n");
pr_out(" resource show mr dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
+ pr_out(" resource show ctx dev [DEV]\n");
+ pr_out(" resource show ctx dev [DEV] [FILTER-NAME FILTER-VALUE]\n");
return 0;
}
@@ -224,6 +226,7 @@ static int res_show(struct rd *rd)
{ "cq", res_cq },
{ "mr", res_mr },
{ "pd", res_pd },
+ { "ctx", res_ctx },
{ 0 }
};
diff --git a/rdma/res.h b/rdma/res.h
index e8bd02e4..a8093d15 100644
--- a/rdma/res.h
+++ b/rdma/res.h
@@ -22,6 +22,8 @@ int res_cm_id_parse_cb(const struct nlmsghdr *nlh, void *data);
int res_cm_id_idx_parse_cb(const struct nlmsghdr *nlh, void *data);
int res_qp_parse_cb(const struct nlmsghdr *nlh, void *data);
int res_qp_idx_parse_cb(const struct nlmsghdr *nlh, void *data);
+int res_ctx_parse_cb(const struct nlmsghdr *nlh, void *data);
+int res_ctx_idx_parse_cb(const struct nlmsghdr *nlh, void *data);
static inline uint32_t res_get_command(uint32_t command, struct rd *rd)
{
@@ -155,6 +157,16 @@ filters qp_valid_filters[MAX_NUMBER_OF_FILTERS] = {
RES_FUNC(res_qp, RDMA_NLDEV_CMD_RES_QP_GET, qp_valid_filters, false,
RDMA_NLDEV_ATTR_RES_LQPN);
+static const
+struct filters ctx_valid_filters[MAX_NUMBER_OF_FILTERS] = {
+ { .name = "dev", .is_number = false },
+ { .name = "pid", .is_number = true },
+ { .name = "ctxn", .is_number = true, .is_doit = true },
+};
+
+RES_FUNC(res_ctx, RDMA_NLDEV_CMD_RES_CTX_GET, ctx_valid_filters, true,
+ RDMA_NLDEV_ATTR_RES_CTXN);
+
void print_dev(struct rd *rd, uint32_t idx, const char *name);
void print_link(struct rd *rd, uint32_t idx, const char *name, uint32_t port,
struct nlattr **nla_line);
diff --git a/rdma/utils.c b/rdma/utils.c
index 292e1808..e2c9bb6f 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -435,6 +435,9 @@ static const enum mnl_attr_data_type nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_RES_LKEY] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_IOVA] = MNL_TYPE_U64,
[RDMA_NLDEV_ATTR_RES_MRLEN] = MNL_TYPE_U64,
+ [RDMA_NLDEV_ATTR_RES_CTX] = MNL_TYPE_NESTED,
+ [RDMA_NLDEV_ATTR_RES_CTX_ENTRY] = MNL_TYPE_NESTED,
+ [RDMA_NLDEV_ATTR_RES_CTXN] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_NDEV_INDEX] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_NDEV_NAME] = MNL_TYPE_NUL_STRING,
[RDMA_NLDEV_ATTR_DRIVER] = MNL_TYPE_NESTED,
--
2.30.2
