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Message-Id: <9f586ae6d6aceb902fa23f910e348970e79fae91.1519071002.git.swise@opengridcomputing.com>
Date: Wed, 14 Feb 2018 13:07:01 -0800
From: Steve Wise <swise@...ngridcomputing.com>
To: dsahern@...il.com
Cc: leon@...nel.org, stephen@...workplumber.org,
netdev@...r.kernel.org, linux-rdma@...r.kernel.org
Subject: [PATCH RFC iproute-next 4/5] rdma: Add MR resource tracking
information
Sample output:
# rdma resource show mr
link cxgb4_0/- rkey 0x5e0e lkey 0x5e0e iova 0x7f9b60001c80 mrlen 64 pgsize 4096 pid 30503 comm rping
link cxgb4_0/- rkey 0x510d lkey 0x510d iova 0x17c7ee0 mrlen 16 pgsize 4096 pid 30503 comm rping
link cxgb4_0/- rkey 0x4a0c lkey 0x4a0c iova 0x17c7e38 mrlen 16 pgsize 4096 pid 30503 comm rping
link cxgb4_0/- rkey 0x480b lkey 0x480b iova 0x224b3f0 mrlen 64 pgsize 4096 pid 30498 comm rping
link cxgb4_0/- rkey 0x460a lkey 0x460a iova 0x224b350 mrlen 64 pgsize 4096 pid 30498 comm rping
link cxgb4_0/- rkey 0x4509 lkey 0x4509 iova 0x2245890 mrlen 16 pgsize 4096 pid 30498 comm rping
link cxgb4_0/- rkey 0x4208 lkey 0x4208 iova 0x22457e8 mrlen 16 pgsize 4096 pid 30498 comm rping
link mlx4_0/- rkey 0x38010700 lkey 0x38010700 iova 0x7f9b5c002f90 mrlen 64 pgsize 4096 pid 30494 comm rping
link mlx4_0/- rkey 0x38010600 lkey 0x38010600 iova 0x17c6c80 mrlen 16 pgsize 4096 pid 30494 comm rping
link mlx4_0/- rkey 0x38010500 lkey 0x38010500 iova 0x17c6bd8 mrlen 16 pgsize 4096 pid 30494 comm rping
link mlx4_0/- rkey 0x38010400 lkey 0x38010400 iova 0x1b68430 mrlen 64 pgsize 4096 pid 30489 comm rping
link mlx4_0/- rkey 0x38010300 lkey 0x38010300 iova 0x1b683a0 mrlen 64 pgsize 4096 pid 30489 comm rping
link mlx4_0/- rkey 0x38010200 lkey 0x38010200 iova 0x1b62890 mrlen 16 pgsize 4096 pid 30489 comm rping
link mlx4_0/- rkey 0x38010100 lkey 0x38010100 iova 0x1b627e8 mrlen 16 pgsize 4096 pid 30489 comm rping
Signed-off-by: Steve Wise <swise@...ngridcomputing.com>
---
include/json_writer.h | 2 +
lib/json_writer.c | 11 +++++
rdma/res.c | 126 ++++++++++++++++++++++++++++++++++++++++++++++++++
rdma/utils.c | 7 +++
4 files changed, 146 insertions(+)
diff --git a/include/json_writer.h b/include/json_writer.h
index 1516aaf..34f2ccc 100644
--- a/include/json_writer.h
+++ b/include/json_writer.h
@@ -39,6 +39,7 @@ void jsonw_bool(json_writer_t *self, bool value);
void jsonw_float(json_writer_t *self, double number);
void jsonw_float_fmt(json_writer_t *self, const char *fmt, double num);
void jsonw_uint(json_writer_t *self, uint64_t number);
+void jsonw_xint(json_writer_t *self, uint64_t number);
void jsonw_hu(json_writer_t *self, unsigned short number);
void jsonw_int(json_writer_t *self, int64_t number);
void jsonw_null(json_writer_t *self);
@@ -49,6 +50,7 @@ void jsonw_string_field(json_writer_t *self, const char *prop, const char *val);
void jsonw_bool_field(json_writer_t *self, const char *prop, bool value);
void jsonw_float_field(json_writer_t *self, const char *prop, double num);
void jsonw_uint_field(json_writer_t *self, const char *prop, uint64_t num);
+void jsonw_xint_field(json_writer_t *self, const char *prop, uint64_t num);
void jsonw_hu_field(json_writer_t *self, const char *prop, unsigned short num);
void jsonw_int_field(json_writer_t *self, const char *prop, int64_t num);
void jsonw_null_field(json_writer_t *self, const char *prop);
diff --git a/lib/json_writer.c b/lib/json_writer.c
index f3eeaf7..6d73a1b 100644
--- a/lib/json_writer.c
+++ b/lib/json_writer.c
@@ -224,6 +224,11 @@ void jsonw_uint(json_writer_t *self, uint64_t num)
jsonw_printf(self, "%"PRIu64, num);
}
+void jsonw_xint(json_writer_t *self, uint64_t num)
+{
+ jsonw_printf(self, "%"PRIx64, num);
+}
+
void jsonw_lluint(json_writer_t *self, unsigned long long int num)
{
jsonw_printf(self, "%llu", num);
@@ -268,6 +273,12 @@ void jsonw_uint_field(json_writer_t *self, const char *prop, uint64_t num)
jsonw_uint(self, num);
}
+void jsonw_xint_field(json_writer_t *self, const char *prop, uint64_t num)
+{
+ jsonw_name(self, prop);
+ jsonw_xint(self, num);
+}
+
void jsonw_hu_field(json_writer_t *self, const char *prop, unsigned short num)
{
jsonw_name(self, prop);
diff --git a/rdma/res.c b/rdma/res.c
index 27c1efd..2b67d25 100644
--- a/rdma/res.c
+++ b/rdma/res.c
@@ -819,6 +819,119 @@ static int res_cq_parse_cb(const struct nlmsghdr *nlh, void *data)
return MNL_CB_OK;
}
+static void print_key(struct rd *rd, const char *name, uint32_t val)
+{
+ if (rd->json_output)
+ jsonw_xint_field(rd->jw, name, val);
+ else
+ pr_out("%s 0x%x ", name, val);
+}
+
+static void print_iova(struct rd *rd, uint64_t val)
+{
+ if (rd->json_output)
+ jsonw_xint_field(rd->jw, "iova", val);
+ else
+ pr_out("iova 0x%" PRIx64 " ", val);
+}
+
+static void print_mrlen(struct rd *rd, uint64_t val)
+{
+ if (rd->json_output)
+ jsonw_uint_field(rd->jw, "mrlen", val);
+ else
+ pr_out("mrlen %" PRIu64 " ", val);
+}
+
+static void print_pgsize(struct rd *rd, uint32_t val)
+{
+ if (rd->json_output)
+ jsonw_uint_field(rd->jw, "pgsize", val);
+ else
+ pr_out("pgsize %u ", val);
+}
+
+static int res_mr_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_MR])
+ 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_MR];
+
+ mnl_attr_for_each_nested(nla_entry, nla_table) {
+ struct nlattr *nla_line[RDMA_NLDEV_ATTR_MAX] = {};
+ uint32_t rkey, lkey, pgsize;
+ uint64_t iova, mrlen;
+ char *comm = NULL;
+ uint32_t pid = 0;
+ 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_RKEY] ||
+ !nla_line[RDMA_NLDEV_ATTR_RES_LKEY] ||
+ !nla_line[RDMA_NLDEV_ATTR_RES_IOVA] ||
+ !nla_line[RDMA_NLDEV_ATTR_RES_MRLEN] ||
+ !nla_line[RDMA_NLDEV_ATTR_RES_PGSIZE] ||
+ (!nla_line[RDMA_NLDEV_ATTR_RES_PID] &&
+ !nla_line[RDMA_NLDEV_ATTR_RES_KERN_NAME])) {
+ return MNL_CB_ERROR;
+ }
+
+ rkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_RKEY]);
+ lkey = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_LKEY]);
+ iova = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_IOVA]);
+ mrlen = mnl_attr_get_u64(nla_line[RDMA_NLDEV_ATTR_RES_MRLEN]);
+ pgsize = mnl_attr_get_u32(nla_line[RDMA_NLDEV_ATTR_RES_PGSIZE]);
+
+ 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, 0, nla_line);
+ print_key(rd, "rkey", rkey);
+ print_key(rd, "lkey", lkey);
+ print_iova(rd, iova);
+ print_mrlen(rd, mrlen);
+ print_pgsize(rd, pgsize);
+ 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
@@ -880,6 +993,18 @@ filters cq_valid_filters[MAX_NUMBER_OF_FILTERS] = {{ .name = "link",
RES_FUNC(res_cq, RDMA_NLDEV_CMD_RES_CQ_GET, cq_valid_filters, true);
+static const struct
+filters mr_valid_filters[MAX_NUMBER_OF_FILTERS] = {{ .name = "link",
+ .is_number = false },
+ { .name = "rkey",
+ .is_number = true },
+ { .name = "lkey",
+ .is_number = true },
+ { .name = "pid",
+ .is_number = true }};
+
+RES_FUNC(res_mr, RDMA_NLDEV_CMD_RES_MR_GET, mr_valid_filters, true);
+
static int res_show(struct rd *rd)
{
const struct rd_cmd cmds[] = {
@@ -887,6 +1012,7 @@ static int res_show(struct rd *rd)
{ "qp", res_qp },
{ "cm_id", res_cm_id },
{ "cq", res_cq },
+ { "mr", res_mr },
{ 0 }
};
diff --git a/rdma/utils.c b/rdma/utils.c
index 11b34fe..34b195a 100644
--- a/rdma/utils.c
+++ b/rdma/utils.c
@@ -392,6 +392,13 @@ static const enum mnl_attr_data_type nldev_policy[RDMA_NLDEV_ATTR_MAX] = {
[RDMA_NLDEV_ATTR_RES_CQE] = MNL_TYPE_U32,
[RDMA_NLDEV_ATTR_RES_USECNT] = MNL_TYPE_U64,
[RDMA_NLDEV_ATTR_RES_POLL_CTX] = MNL_TYPE_U8,
+ [RDMA_NLDEV_ATTR_RES_MR] = MNL_TYPE_NESTED,
+ [RDMA_NLDEV_ATTR_RES_MR_ENTRY] = MNL_TYPE_NESTED,
+ [RDMA_NLDEV_ATTR_RES_RKEY] = MNL_TYPE_U32,
+ [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_PGSIZE] = MNL_TYPE_U32,
};
int rd_attr_cb(const struct nlattr *attr, void *data)
--
1.8.3.1
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