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Date: Fri, 15 Apr 2016 09:51:48 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: stephen@...workplumber.org, davem@...emloft.net,
idosch@...lanox.com, eladr@...lanox.com, yotamg@...lanox.com,
ogerlitz@...lanox.com, roopa@...ulusnetworks.com,
nikolay@...ulusnetworks.com, jhs@...atatu.com,
john.fastabend@...il.com, rami.rosen@...el.com,
gospo@...ulusnetworks.com, sfeldma@...il.com
Subject: [patch iproute2 06/11] devlink: split dl_argv_parse_put to parse and put parts
From: Jiri Pirko <jiri@...lanox.com>
It is handy to have parsed cmdline data stored so they can be used for
dumps filtering. So split original dl_argv_parse_put into parse and put
parts.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
devlink/devlink.c | 105 +++++++++++++++++++++++++++++++++++-------------------
1 file changed, 69 insertions(+), 36 deletions(-)
diff --git a/devlink/devlink.c b/devlink/devlink.c
index 5e08666..0c2132f 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -109,12 +109,28 @@ static void ifname_map_free(struct ifname_map *ifname_map)
free(ifname_map);
}
+#define BIT(nr) (1UL << (nr))
+#define DL_OPT_HANDLE BIT(0)
+#define DL_OPT_HANDLEP BIT(1)
+#define DL_OPT_PORT_TYPE BIT(2)
+#define DL_OPT_PORT_COUNT BIT(3)
+
+struct dl_opts {
+ uint32_t present; /* flags of present items */
+ char *bus_name;
+ char *dev_name;
+ uint32_t port_index;
+ enum devlink_port_type port_type;
+ uint32_t port_count;
+};
+
struct dl {
struct mnlg_socket *nlg;
struct list_head ifname_map_list;
int argc;
char **argv;
bool no_nice_names;
+ struct dl_opts opts;
};
static int dl_argc(struct dl *dl)
@@ -347,11 +363,9 @@ static int strtouint32_t(const char *str, uint32_t *p_val)
return 0;
}
-static int dl_argv_put_handle(struct nlmsghdr *nlh, struct dl *dl)
+static int dl_argv_handle(struct dl *dl, char **p_bus_name, char **p_dev_name)
{
char *str = dl_argv_next(dl);
- char *bus_name = bus_name;
- char *dev_name = dev_name;
if (!str) {
pr_err("Devlink identification (\"bus_name/dev_name\") expected\n");
@@ -363,19 +377,15 @@ static int dl_argv_put_handle(struct nlmsghdr *nlh, struct dl *dl)
return -EINVAL;
}
- strslashrsplit(str, &bus_name, &dev_name);
- mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, bus_name);
- mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, dev_name);
+ strslashrsplit(str, p_bus_name, p_dev_name);
return 0;
}
-static int dl_argv_put_handle_port(struct nlmsghdr *nlh, struct dl *dl)
+static int dl_argv_handle_port(struct dl *dl, char **p_bus_name,
+ char **p_dev_name, uint32_t *p_port_index)
{
char *str = dl_argv_next(dl);
unsigned int slash_count;
- char *bus_name = bus_name;
- char *dev_name = dev_name;
- uint32_t port_index = port_index;
int err;
if (!str) {
@@ -394,24 +404,21 @@ static int dl_argv_put_handle_port(struct nlmsghdr *nlh, struct dl *dl)
char *portstr = portstr;
err = strslashrsplit(str, &handlestr, &portstr);
- err = strtouint32_t(portstr, &port_index);
+ err = strtouint32_t(portstr, p_port_index);
if (err) {
pr_err("Port index \"%s\" is not a number or not within range\n",
portstr);
return err;
}
- strslashrsplit(handlestr, &bus_name, &dev_name);
+ strslashrsplit(handlestr, p_bus_name, p_dev_name);
} else if (slash_count == 0) {
- err = ifname_map_lookup(dl, str, &bus_name, &dev_name,
- &port_index);
+ err = ifname_map_lookup(dl, str, p_bus_name, p_dev_name,
+ p_port_index);
if (err) {
pr_err("Netdevice \"%s\" not found\n", str);
return err;
}
}
- mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, bus_name);
- mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, dev_name);
- mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX, port_index);
return 0;
}
@@ -460,55 +467,46 @@ static int port_type_get(const char *typestr, enum devlink_port_type *p_type)
return 0;
}
-#define BIT(nr) (1UL << (nr))
-#define DL_OPT_HANDLE BIT(0)
-#define DL_OPT_HANDLEP BIT(1)
-#define DL_OPT_PORT_TYPE BIT(2)
-#define DL_OPT_PORT_COUNT BIT(3)
-
-static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
- uint32_t o_required, uint32_t o_optional)
+static int dl_argv_parse(struct dl *dl, uint32_t o_required,
+ uint32_t o_optional)
{
+ struct dl_opts *opts = &dl->opts;
uint32_t o_all = o_required | o_optional;
uint32_t o_found = 0;
int err;
if (o_required & DL_OPT_HANDLE) {
- err = dl_argv_put_handle(nlh, dl);
+ err = dl_argv_handle(dl, &opts->bus_name, &opts->dev_name);
if (err)
return err;
+ o_found |= DL_OPT_HANDLE;
} else if (o_required & DL_OPT_HANDLEP) {
- err = dl_argv_put_handle_port(nlh, dl);
+ err = dl_argv_handle_port(dl, &opts->bus_name, &opts->dev_name,
+ &opts->port_index);
if (err)
return err;
+ o_found |= DL_OPT_HANDLEP;
}
while (dl_argc(dl)) {
if (dl_argv_match(dl, "type") &&
(o_all & DL_OPT_PORT_TYPE)) {
- enum devlink_port_type port_type;
const char *typestr;
dl_arg_inc(dl);
err = dl_argv_str(dl, &typestr);
if (err)
return err;
- err = port_type_get(typestr, &port_type);
+ err = port_type_get(typestr, &opts->port_type);
if (err)
return err;
- mnl_attr_put_u16(nlh, DEVLINK_ATTR_PORT_TYPE,
- port_type);
o_found |= DL_OPT_PORT_TYPE;
} else if (dl_argv_match(dl, "count") &&
(o_all & DL_OPT_PORT_COUNT)) {
- uint32_t count;
-
dl_arg_inc(dl);
- err = dl_argv_uint32_t(dl, &count);
+ err = dl_argv_uint32_t(dl, &opts->port_count);
if (err)
return err;
- mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_SPLIT_COUNT,
- count);
o_found |= DL_OPT_PORT_COUNT;
} else {
pr_err("Unknown option \"%s\"\n", dl_argv(dl));
@@ -516,6 +514,8 @@ static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
}
}
+ opts->present = o_found;
+
if ((o_required & DL_OPT_PORT_TYPE) && !(o_found & DL_OPT_PORT_TYPE)) {
pr_err("Port type option expected.\n");
return -EINVAL;
@@ -530,6 +530,39 @@ static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
return 0;
}
+static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl)
+{
+ struct dl_opts *opts = &dl->opts;
+
+ if (opts->present & DL_OPT_HANDLE) {
+ mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, opts->bus_name);
+ mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, opts->dev_name);
+ } else if (opts->present & DL_OPT_HANDLEP) {
+ mnl_attr_put_strz(nlh, DEVLINK_ATTR_BUS_NAME, opts->bus_name);
+ mnl_attr_put_strz(nlh, DEVLINK_ATTR_DEV_NAME, opts->dev_name);
+ mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_INDEX,
+ opts->port_index);
+ }
+ if (opts->present & DL_OPT_PORT_TYPE)
+ mnl_attr_put_u16(nlh, DEVLINK_ATTR_PORT_TYPE,
+ opts->port_type);
+ if (opts->present & DL_OPT_PORT_COUNT)
+ mnl_attr_put_u32(nlh, DEVLINK_ATTR_PORT_SPLIT_COUNT,
+ opts->port_count);
+}
+
+static int dl_argv_parse_put(struct nlmsghdr *nlh, struct dl *dl,
+ uint32_t o_required, uint32_t o_optional)
+{
+ int err;
+
+ err = dl_argv_parse(dl, o_required, o_optional);
+ if (err)
+ return err;
+ dl_opts_put(nlh, dl);
+ return 0;
+}
+
static void cmd_dev_help(void)
{
pr_out("Usage: devlink dev show [ DEV ]\n");
--
2.5.5
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