diff options
author | Flavio Leitner <fleitner@redhat.com> | 2010-10-05 14:23:59 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2010-10-06 03:26:58 (GMT) |
commit | c2952c314b4fe61820ba8fd6c949eed636140d52 (patch) | |
tree | dd7ab927c7d344279e128f38d90387214cd06e13 /drivers/net/bonding/bond_sysfs.c | |
parent | e12b453904c54bbdc515778ff664d87a7f9473af (diff) | |
download | linux-fsl-qoriq-c2952c314b4fe61820ba8fd6c949eed636140d52.tar.xz |
bonding: add retransmit membership reports tunable
Allow sysadmins to configure the number of multicast
membership report sent on a link failure event.
Signed-off-by: Flavio Leitner <fleitner@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/bonding/bond_sysfs.c')
-rw-r--r-- | drivers/net/bonding/bond_sysfs.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/bonding/bond_sysfs.c b/drivers/net/bonding/bond_sysfs.c index c311aed..01b4c3f 100644 --- a/drivers/net/bonding/bond_sysfs.c +++ b/drivers/net/bonding/bond_sysfs.c @@ -1592,6 +1592,49 @@ out: static DEVICE_ATTR(all_slaves_active, S_IRUGO | S_IWUSR, bonding_show_slaves_active, bonding_store_slaves_active); +/* + * Show and set the number of IGMP membership reports to send on link failure + */ +static ssize_t bonding_show_resend_igmp(struct device *d, + struct device_attribute *attr, + char *buf) +{ + struct bonding *bond = to_bond(d); + + return sprintf(buf, "%d\n", bond->params.resend_igmp); +} + +static ssize_t bonding_store_resend_igmp(struct device *d, + struct device_attribute *attr, + const char *buf, size_t count) +{ + int new_value, ret = count; + struct bonding *bond = to_bond(d); + + if (sscanf(buf, "%d", &new_value) != 1) { + pr_err("%s: no resend_igmp value specified.\n", + bond->dev->name); + ret = -EINVAL; + goto out; + } + + if (new_value < 0) { + pr_err("%s: Invalid resend_igmp value %d not in range 0-255; rejected.\n", + bond->dev->name, new_value); + ret = -EINVAL; + goto out; + } + + pr_info("%s: Setting resend_igmp to %d.\n", + bond->dev->name, new_value); + bond->params.resend_igmp = new_value; +out: + return ret; +} + +static DEVICE_ATTR(resend_igmp, S_IRUGO | S_IWUSR, + bonding_show_resend_igmp, bonding_store_resend_igmp); + static struct attribute *per_bond_attrs[] = { &dev_attr_slaves.attr, &dev_attr_mode.attr, @@ -1619,6 +1662,7 @@ static struct attribute *per_bond_attrs[] = { &dev_attr_ad_partner_mac.attr, &dev_attr_queue_id.attr, &dev_attr_all_slaves_active.attr, + &dev_attr_resend_igmp.attr, NULL, }; |