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Date: Fri, 15 Apr 2016 09:51:50 +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 08/11] devlink: allow to parse both devlink and port handle in the same time
From: Jiri Pirko <jiri@...lanox.com>
For filtering purposes, it makes sense for used to either specify
devlink handle of port handle.
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
devlink/devlink.c | 109 ++++++++++++++++++++++++++++++++++++++++++++----------
1 file changed, 90 insertions(+), 19 deletions(-)
diff --git a/devlink/devlink.c b/devlink/devlink.c
index d436bbf..e2e0413 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -363,6 +363,12 @@ static int strtouint32_t(const char *str, uint32_t *p_val)
return 0;
}
+static int __dl_argv_handle(char *str, char **p_bus_name, char **p_dev_name)
+{
+ strslashrsplit(str, p_bus_name, p_dev_name);
+ return 0;
+}
+
static int dl_argv_handle(struct dl *dl, char **p_bus_name, char **p_dev_name)
{
char *str = dl_argv_next(dl);
@@ -376,8 +382,40 @@ static int dl_argv_handle(struct dl *dl, char **p_bus_name, char **p_dev_name)
pr_err("Expected \"bus_name/dev_name\".\n");
return -EINVAL;
}
+ return __dl_argv_handle(str, p_bus_name, p_dev_name);
+}
- strslashrsplit(str, p_bus_name, p_dev_name);
+static int __dl_argv_handle_port(char *str,
+ char **p_bus_name, char **p_dev_name,
+ uint32_t *p_port_index)
+{
+ char *handlestr = handlestr;
+ char *portstr = portstr;
+ int err;
+
+ strslashrsplit(str, &handlestr, &portstr);
+ 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, p_bus_name, p_dev_name);
+ return 0;
+}
+
+static int __dl_argv_handle_port_ifname(struct dl *dl, char *str,
+ char **p_bus_name, char **p_dev_name,
+ uint32_t *p_port_index)
+{
+ int err;
+
+ 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;
+ }
return 0;
}
@@ -386,7 +424,6 @@ static int dl_argv_handle_port(struct dl *dl, char **p_bus_name,
{
char *str = dl_argv_next(dl);
unsigned int slash_count;
- int err;
if (!str) {
pr_err("Port identification (\"bus_name/dev_name/port_index\" or \"netdev ifname\") expected.\n");
@@ -398,26 +435,52 @@ static int dl_argv_handle_port(struct dl *dl, char **p_bus_name,
pr_err("Expected \"bus_name/dev_name/port_index\" or \"netdev_ifname\".\n");
return -EINVAL;
}
-
if (slash_count == 2) {
- char *handlestr = handlestr;
- char *portstr = portstr;
-
- err = strslashrsplit(str, &handlestr, &portstr);
- 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 __dl_argv_handle_port(str, p_bus_name,
+ p_dev_name, p_port_index);
+ } else if (slash_count == 0) {
+ return __dl_argv_handle_port_ifname(dl, str, p_bus_name,
+ p_dev_name, p_port_index);
+ }
+ return 0;
+}
+
+static int dl_argv_handle_both(struct dl *dl, char **p_bus_name,
+ char **p_dev_name, uint32_t *p_port_index,
+ uint32_t *p_handle_bit)
+{
+ char *str = dl_argv_next(dl);
+ unsigned int slash_count;
+ int err;
+
+ if (!str) {
+ pr_err("One of following identifications expected:\n"
+ "Devlink identification (\"bus_name/dev_name\")\n"
+ "Port identification (\"bus_name/dev_name/port_index\" or \"netdev ifname\")\n");
+ return -EINVAL;
+ }
+ slash_count = strslashcount(str);
+ if (slash_count == 1) {
+ err = __dl_argv_handle(str, p_bus_name, p_dev_name);
+ if (err)
return err;
- }
- strslashrsplit(handlestr, p_bus_name, p_dev_name);
+ *p_handle_bit = DL_OPT_HANDLE;
+ } else if (slash_count == 2) {
+ err = __dl_argv_handle_port(str, p_bus_name,
+ p_dev_name, p_port_index);
+ if (err)
+ return err;
+ *p_handle_bit = DL_OPT_HANDLEP;
} else if (slash_count == 0) {
- 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);
+ err = __dl_argv_handle_port_ifname(dl, str, p_bus_name,
+ p_dev_name, p_port_index);
+ if (err)
return err;
- }
+ *p_handle_bit = DL_OPT_HANDLEP;
+ } else {
+ pr_err("Wrong port identification string format.\n");
+ pr_err("Expected \"bus_name/dev_name\" or \"bus_name/dev_name/port_index\" or \"netdev_ifname\".\n");
+ return -EINVAL;
}
return 0;
}
@@ -475,7 +538,15 @@ static int dl_argv_parse(struct dl *dl, uint32_t o_required,
uint32_t o_found = 0;
int err;
- if (o_required & DL_OPT_HANDLE) {
+ if (o_required & DL_OPT_HANDLE && o_required & DL_OPT_HANDLEP) {
+ uint32_t handle_bit = handle_bit;
+
+ err = dl_argv_handle_both(dl, &opts->bus_name, &opts->dev_name,
+ &opts->port_index, &handle_bit);
+ if (err)
+ return err;
+ o_found |= handle_bit;
+ } else if (o_required & DL_OPT_HANDLE) {
err = dl_argv_handle(dl, &opts->bus_name, &opts->dev_name);
if (err)
return err;
--
2.5.5
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