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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* sys.c RDMA tool
*/
#include "rdma.h"
static int sys_help(struct rd *rd)
{
pr_out("Usage: %s system show [ netns ]\n", rd->filename);
pr_out(" %s system set netns { shared | exclusive }\n", rd->filename);
return 0;
}
static const char *netns_modes_str[] = {
"exclusive",
"shared",
};
static int sys_show_parse_cb(const struct nlmsghdr *nlh, void *data)
{
struct nlattr *tb[RDMA_NLDEV_ATTR_MAX] = {};
uint8_t mon_mode = 0;
bool cof = false;
mnl_attr_parse(nlh, 0, rd_attr_cb, tb);
if (tb[RDMA_NLDEV_SYS_ATTR_NETNS_MODE]) {
const char *mode_str;
uint8_t netns_mode;
netns_mode =
mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_NETNS_MODE]);
if (netns_mode < ARRAY_SIZE(netns_modes_str))
mode_str = netns_modes_str[netns_mode];
else
mode_str = "unknown";
print_string(PRINT_ANY, "netns", "netns %s ", mode_str);
}
if (tb[RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE]) {
uint8_t mode;
mode = mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE]);
print_on_off(PRINT_ANY, "privileged-qkey", "privileged-qkey %s ", mode);
}
if (tb[RDMA_NLDEV_SYS_ATTR_MONITOR_MODE])
mon_mode = mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_MONITOR_MODE]);
print_on_off(PRINT_ANY, "monitor", "monitor %s ", mon_mode);
if (tb[RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK])
cof = mnl_attr_get_u8(tb[RDMA_NLDEV_SYS_ATTR_COPY_ON_FORK]);
print_on_off(PRINT_ANY, "copy-on-fork", "copy-on-fork %s", cof);
print_nl();
return MNL_CB_OK;
}
static int sys_show_no_args(struct rd *rd)
{
uint32_t seq;
int ret;
rd_prepare_msg(rd, RDMA_NLDEV_CMD_SYS_GET,
&seq, (NLM_F_REQUEST | NLM_F_ACK));
ret = rd_send_msg(rd);
if (ret)
return ret;
return rd_recv_msg(rd, sys_show_parse_cb, rd, seq);
}
static int sys_show(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, sys_show_no_args},
{ "netns", sys_show_no_args},
{ "privileged-qkey", sys_show_no_args},
{ "monitor", sys_show_no_args},
{ 0 }
};
return rd_exec_cmd(rd, cmds, "parameter");
}
static int sys_set_netns_cmd(struct rd *rd, bool enable)
{
uint32_t seq;
rd_prepare_msg(rd, RDMA_NLDEV_CMD_SYS_SET,
&seq, (NLM_F_REQUEST | NLM_F_ACK));
mnl_attr_put_u8(rd->nlh, RDMA_NLDEV_SYS_ATTR_NETNS_MODE, enable);
return rd_sendrecv_msg(rd, seq);
}
static int sys_set_privileged_qkey_cmd(struct rd *rd, bool enable)
{
uint32_t seq;
rd_prepare_msg(rd, RDMA_NLDEV_CMD_SYS_SET,
&seq, (NLM_F_REQUEST | NLM_F_ACK));
mnl_attr_put_u8(rd->nlh, RDMA_NLDEV_SYS_ATTR_PRIVILEGED_QKEY_MODE, enable);
return rd_sendrecv_msg(rd, seq);
}
static bool sys_valid_netns_cmd(const char *cmd)
{
int i;
for (i = 0; i < ARRAY_SIZE(netns_modes_str); i++) {
if (!strcmp(cmd, netns_modes_str[i]))
return true;
}
return false;
}
static int sys_set_netns_args(struct rd *rd)
{
bool cmd;
if (rd_no_arg(rd) || !sys_valid_netns_cmd(rd_argv(rd))) {
pr_err("valid options are: { shared | exclusive }\n");
return -EINVAL;
}
cmd = (strcmp(rd_argv(rd), "shared") == 0) ? true : false;
return sys_set_netns_cmd(rd, cmd);
}
static int sys_set_privileged_qkey_args(struct rd *rd)
{
bool cmd;
int ret;
if (rd_no_arg(rd)) {
pr_err("valid options are: { on | off }\n");
return -EINVAL;
}
cmd = parse_on_off("privileged-qkey", rd_argv(rd), &ret);
if (ret)
return -EINVAL;
return sys_set_privileged_qkey_cmd(rd, cmd);
}
static int sys_set_help(struct rd *rd)
{
pr_out("Usage: %s system set [PARAM] value\n", rd->filename);
pr_out(" system set netns { shared | exclusive }\n");
pr_out(" system set privileged-qkey { on | off }\n");
return 0;
}
static int sys_set(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, sys_set_help },
{ "help", sys_set_help },
{ "netns", sys_set_netns_args},
{ "privileged-qkey", sys_set_privileged_qkey_args},
{ 0 }
};
return rd_exec_cmd(rd, cmds, "parameter");
}
int cmd_sys(struct rd *rd)
{
const struct rd_cmd cmds[] = {
{ NULL, sys_show },
{ "show", sys_show },
{ "set", sys_set },
{ "help", sys_help },
{ 0 }
};
return rd_exec_cmd(rd, cmds, "system command");
}
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