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Date: Sun, 10 Feb 2019 20:28:46 +0200
From: Aya Levin <ayal@...lanox.com>
To: David Ahern <dsahern@...il.com>, netdev@...r.kernel.org,
"David S. Miller" <davem@...emloft.net>,
Jiri Pirko <jiri@...lanox.com>
Cc: Moshe Shemesh <moshe@...lanox.com>, Aya Levin <ayal@...lanox.com>,
Eran Ben Elisha <eranbe@...lanox.com>,
Tal Alon <talal@...lanox.com>,
Ariel Almog <ariela@...lanox.com>
Subject: [PATCH for-next 1/4] devlink: refactor validation of finding required arguments
Introducing argument's metadata structure matching a bitmap flag per
required argument and an error message if missing. Using this static
array to refactor validation of finding required arguments in devlink
command line and to ease further maintenance.
Signed-off-by: Aya Levin <ayal@...lanox.com>
Reviewed-by: Moshe Shemesh <moshe@...lanox.com>
---
devlink/devlink.c | 155 +++++++++++++++++-------------------------------------
1 file changed, 47 insertions(+), 108 deletions(-)
diff --git a/devlink/devlink.c b/devlink/devlink.c
index d823512a4030..a05755385a49 100644
--- a/devlink/devlink.c
+++ b/devlink/devlink.c
@@ -39,6 +39,7 @@
#define PARAM_CMODE_RUNTIME_STR "runtime"
#define PARAM_CMODE_DRIVERINIT_STR "driverinit"
#define PARAM_CMODE_PERMANENT_STR "permanent"
+#define DL_ARGS_REQUIRED_MAX_ERR_LEN 80
static int g_new_line_count;
@@ -950,6 +951,51 @@ static int param_cmode_get(const char *cmodestr,
return 0;
}
+struct dl_args_metadata {
+ uint32_t o_flag;
+ char err_msg[DL_ARGS_REQUIRED_MAX_ERR_LEN];
+};
+
+static const struct dl_args_metadata dl_args_required[] = {
+ {DL_OPT_PORT_TYPE, "Port type not set.\n"},
+ {DL_OPT_PORT_COUNT, "Port split count option expected.\n"},
+ {DL_OPT_SB_POOL, "Pool index option expected.\n"},
+ {DL_OPT_SB_SIZE, "Pool size option expected.\n"},
+ {DL_OPT_SB_TYPE, "Pool type option expected.\n"},
+ {DL_OPT_SB_THTYPE, "Pool threshold type option expected.\n"},
+ {DL_OPT_SB_TH, "Threshold option expected.\n"},
+ {DL_OPT_SB_TC, "TC index option expected.\n"},
+ {DL_OPT_ESWITCH_MODE, "E-Switch mode option expected.\n"},
+ {DL_OPT_ESWITCH_INLINE_MODE, "E-Switch inline-mode option expected.\n"},
+ {DL_OPT_DPIPE_TABLE_NAME, "Dpipe table name expected\n"},
+ {DL_OPT_DPIPE_TABLE_COUNTERS, "Dpipe table counter state expected\n"},
+ {DL_OPT_ESWITCH_ENCAP_MODE, "E-Switch encapsulation option expected.\n"},
+ {DL_OPT_PARAM_NAME, "Parameter name expected.\n"},
+ {DL_OPT_PARAM_VALUE, "Value to set expected.\n"},
+ {DL_OPT_PARAM_CMODE, "Configuration mode expected.\n"},
+ {DL_OPT_REGION_SNAPSHOT_ID, "Region snapshot id expected.\n"},
+ {DL_OPT_REGION_ADDRESS, "Region address value expected.\n"},
+ {DL_OPT_REGION_LENGTH, "Region length value expected.\n"},
+};
+
+static int validate_finding_required_dl_args(uint32_t o_required,
+ uint32_t o_found)
+{
+ uint32_t dl_args_required_size;
+ uint32_t o_flag;
+ int i;
+
+ dl_args_required_size = ARRAY_SIZE(dl_args_required);
+ for (i = 0; i < dl_args_required_size; i++) {
+ o_flag = dl_args_required[i].o_flag;
+ if ((o_required & o_flag) && !(o_found & o_flag)) {
+ pr_err("%s", dl_args_required[i].err_msg);
+ return -EINVAL;
+ }
+ }
+ return 0;
+}
+
static int dl_argv_parse(struct dl *dl, uint32_t o_required,
uint32_t o_optional)
{
@@ -1198,114 +1244,7 @@ static int dl_argv_parse(struct dl *dl, uint32_t o_required,
opts->present |= DL_OPT_SB;
}
- if ((o_required & DL_OPT_PORT_TYPE) && !(o_found & DL_OPT_PORT_TYPE)) {
- pr_err("Port type option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_PORT_COUNT) &&
- !(o_found & DL_OPT_PORT_COUNT)) {
- pr_err("Port split count option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_SB_POOL) && !(o_found & DL_OPT_SB_POOL)) {
- pr_err("Pool index option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_SB_SIZE) && !(o_found & DL_OPT_SB_SIZE)) {
- pr_err("Pool size option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_SB_TYPE) && !(o_found & DL_OPT_SB_TYPE)) {
- pr_err("Pool type option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_SB_THTYPE) && !(o_found & DL_OPT_SB_THTYPE)) {
- pr_err("Pool threshold type option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_SB_TH) && !(o_found & DL_OPT_SB_TH)) {
- pr_err("Threshold option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_SB_TC) && !(o_found & DL_OPT_SB_TC)) {
- pr_err("TC index option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_ESWITCH_MODE) &&
- !(o_found & DL_OPT_ESWITCH_MODE)) {
- pr_err("E-Switch mode option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_ESWITCH_INLINE_MODE) &&
- !(o_found & DL_OPT_ESWITCH_INLINE_MODE)) {
- pr_err("E-Switch inline-mode option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_DPIPE_TABLE_NAME) &&
- !(o_found & DL_OPT_DPIPE_TABLE_NAME)) {
- pr_err("Dpipe table name expected\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_DPIPE_TABLE_COUNTERS) &&
- !(o_found & DL_OPT_DPIPE_TABLE_COUNTERS)) {
- pr_err("Dpipe table counter state expected\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_ESWITCH_ENCAP_MODE) &&
- !(o_found & DL_OPT_ESWITCH_ENCAP_MODE)) {
- pr_err("E-Switch encapsulation option expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_PARAM_NAME) &&
- !(o_found & DL_OPT_PARAM_NAME)) {
- pr_err("Parameter name expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_PARAM_VALUE) &&
- !(o_found & DL_OPT_PARAM_VALUE)) {
- pr_err("Value to set expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_PARAM_CMODE) &&
- !(o_found & DL_OPT_PARAM_CMODE)) {
- pr_err("Configuration mode expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_REGION_SNAPSHOT_ID) &&
- !(o_found & DL_OPT_REGION_SNAPSHOT_ID)) {
- pr_err("Region snapshot id expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_REGION_ADDRESS) &&
- !(o_found & DL_OPT_REGION_ADDRESS)) {
- pr_err("Region address value expected.\n");
- return -EINVAL;
- }
-
- if ((o_required & DL_OPT_REGION_LENGTH) &&
- !(o_found & DL_OPT_REGION_LENGTH)) {
- pr_err("Region length value expected.\n");
- return -EINVAL;
- }
-
- return 0;
+ return validate_finding_required_dl_args(o_required, o_found);
}
static void dl_opts_put(struct nlmsghdr *nlh, struct dl *dl)
--
2.14.1
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