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Message-Id: <1390398820-5355-22-git-send-email-nikolay@redhat.com>
Date: Wed, 22 Jan 2014 14:53:36 +0100
From: Nikolay Aleksandrov <nikolay@...hat.com>
To: netdev@...r.kernel.org
Cc: Nikolay Aleksandrov <nikolay@...hat.com>
Subject: [PATCH net-next v2 21/25] bonding: convert queue_id to use the new option API
This patch adds the necessary changes so queue_id would use
the new bonding option API. Also move it to its own set function in
bond_options.c and fix some style errors.
Signed-off-by: Nikolay Aleksandrov <nikolay@...hat.com>
---
drivers/net/bonding/bond_options.c | 70 ++++++++++++++++++++++++++++++++++++++
drivers/net/bonding/bond_options.h | 3 ++
drivers/net/bonding/bond_sysfs.c | 65 +++--------------------------------
3 files changed, 77 insertions(+), 61 deletions(-)
diff --git a/drivers/net/bonding/bond_options.c b/drivers/net/bonding/bond_options.c
index 2315104d..8775c72 100644
--- a/drivers/net/bonding/bond_options.c
+++ b/drivers/net/bonding/bond_options.c
@@ -254,6 +254,13 @@ static struct bond_option bond_opts[] = {
BIT(BOND_MODE_ALB)),
.set = bond_option_active_slave_set
},
+ [BOND_OPT_QUEUE_ID] = {
+ .id = BOND_OPT_QUEUE_ID,
+ .name = "queue_id",
+ .desc = "Set queue id of a slave",
+ .flags = BOND_OPTFLAG_RAWVAL,
+ .set = bond_option_queue_id_set
+ },
{ }
};
@@ -1130,3 +1137,66 @@ int bond_option_ad_select_set(struct bonding *bond,
return 0;
}
+
+int bond_option_queue_id_set(struct bonding *bond,
+ struct bond_opt_value *newval)
+{
+ struct slave *slave, *update_slave;
+ struct net_device *sdev;
+ struct list_head *iter;
+ char *delim;
+ int ret = 0;
+ u16 qid;
+
+ /* delim will point to queue id if successful */
+ delim = strchr(newval->string, ':');
+ if (!delim)
+ goto err_no_cmd;
+
+ /* Terminate string that points to device name and bump it
+ * up one, so we can read the queue id there.
+ */
+ *delim = '\0';
+ if (sscanf(++delim, "%hd\n", &qid) != 1)
+ goto err_no_cmd;
+
+ /* Check buffer length, valid ifname and queue id */
+ if (strlen(newval->string) > IFNAMSIZ ||
+ !dev_valid_name(newval->string) ||
+ qid > bond->dev->real_num_tx_queues)
+ goto err_no_cmd;
+
+ /* Get the pointer to that interface if it exists */
+ sdev = __dev_get_by_name(dev_net(bond->dev), newval->string);
+ if (!sdev)
+ goto err_no_cmd;
+
+ /* Search for thes slave and check for duplicate qids */
+ update_slave = NULL;
+ bond_for_each_slave(bond, slave, iter) {
+ if (sdev == slave->dev)
+ /* We don't need to check the matching
+ * slave for dups, since we're overwriting it
+ */
+ update_slave = slave;
+ else if (qid && qid == slave->queue_id) {
+ goto err_no_cmd;
+ }
+ }
+
+ if (!update_slave)
+ goto err_no_cmd;
+
+ /* Actually set the qids for the slave */
+ update_slave->queue_id = qid;
+
+out:
+ return ret;
+
+err_no_cmd:
+ pr_info("invalid input for queue_id set for %s.\n",
+ bond->dev->name);
+ ret = -EPERM;
+ goto out;
+
+}
diff --git a/drivers/net/bonding/bond_options.h b/drivers/net/bonding/bond_options.h
index 1f486a7..396d504 100644
--- a/drivers/net/bonding/bond_options.h
+++ b/drivers/net/bonding/bond_options.h
@@ -57,6 +57,7 @@ enum {
BOND_OPT_PRIMARY_RESELECT,
BOND_OPT_USE_CARRIER,
BOND_OPT_ACTIVE_SLAVE,
+ BOND_OPT_QUEUE_ID,
BOND_OPT_LAST
};
@@ -153,4 +154,6 @@ int bond_option_use_carrier_set(struct bonding *bond,
struct bond_opt_value *newval);
int bond_option_active_slave_set(struct bonding *bond,
struct bond_opt_value *newval);
+int bond_option_queue_id_set(struct bonding *bond,
+ struct bond_opt_value *newval);
#endif /* _BOND_OPTIONS_H */
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c
index 181a59d..a9cd3f5 100644
--- a/drivers/net/bonding/bond_sysfs.c
+++ b/drivers/net/bonding/bond_sysfs.c
@@ -985,72 +985,15 @@ static ssize_t bonding_store_queue_id(struct device *d,
struct device_attribute *attr,
const char *buffer, size_t count)
{
- struct slave *slave, *update_slave;
struct bonding *bond = to_bond(d);
- struct list_head *iter;
- u16 qid;
- int ret = count;
- char *delim;
- struct net_device *sdev = NULL;
-
- if (!rtnl_trylock())
- return restart_syscall();
-
- /* delim will point to queue id if successful */
- delim = strchr(buffer, ':');
- if (!delim)
- goto err_no_cmd;
-
- /*
- * Terminate string that points to device name and bump it
- * up one, so we can read the queue id there.
- */
- *delim = '\0';
- if (sscanf(++delim, "%hd\n", &qid) != 1)
- goto err_no_cmd;
-
- /* Check buffer length, valid ifname and queue id */
- if (strlen(buffer) > IFNAMSIZ ||
- !dev_valid_name(buffer) ||
- qid > bond->dev->real_num_tx_queues)
- goto err_no_cmd;
-
- /* Get the pointer to that interface if it exists */
- sdev = __dev_get_by_name(dev_net(bond->dev), buffer);
- if (!sdev)
- goto err_no_cmd;
-
- /* Search for thes slave and check for duplicate qids */
- update_slave = NULL;
- bond_for_each_slave(bond, slave, iter) {
- if (sdev == slave->dev)
- /*
- * We don't need to check the matching
- * slave for dups, since we're overwriting it
- */
- update_slave = slave;
- else if (qid && qid == slave->queue_id) {
- goto err_no_cmd;
- }
- }
-
- if (!update_slave)
- goto err_no_cmd;
+ int ret;
- /* Actually set the qids for the slave */
- update_slave->queue_id = qid;
+ ret = bond_opt_tryset_rtnl(bond, BOND_OPT_QUEUE_ID, (char *)buffer);
+ if (!ret)
+ ret = count;
-out:
- rtnl_unlock();
return ret;
-
-err_no_cmd:
- pr_info("invalid input for queue_id set for %s.\n",
- bond->dev->name);
- ret = -EPERM;
- goto out;
}
-
static DEVICE_ATTR(queue_id, S_IRUGO | S_IWUSR, bonding_show_queue_id,
bonding_store_queue_id);
--
1.8.4.2
--
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