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iscsi_ibft: Add prefix-len attr and display netmask

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The iBFT table only specifies a prefix length, not a netmask.
And the netmask is pretty much pointless for IPv6.
So introduce a new attribute 'prefix-len'.

Some older user-space code might rely on the netmask attribute
being present, so we should always display it.

Changes from v1:
 - Combined two patches into one

Changes from v2:
 - Cleaned up/corrected wording for patch description

Signed-off-by: Hannes Reinecke <[email protected]>
Signed-off-by: Lee Duncan <[email protected]>
Reviewed-by: Mike Christie <[email protected]>
Signed-off-by: Konrad Rzeszutek Wilk <[email protected]>
This commit is contained in:
Hannes Reinecke 2016-02-25 09:56:04 -08:00 • committed by Konrad Rzeszutek Wilk
commit 9a99425f07
3 changed files with 10 additions and 0 deletions
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5
drivers/scsi/iscsi_boot_sysfs.c
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@ -166,6 +166,7 @@ static struct attribute_group iscsi_boot_target_attr_group = {
iscsi_boot_rd_attr(eth_index, index, ISCSI_BOOT_ETH_INDEX);
iscsi_boot_rd_attr(eth_flags, flags, ISCSI_BOOT_ETH_FLAGS);
iscsi_boot_rd_attr(eth_ip, ip-addr, ISCSI_BOOT_ETH_IP_ADDR);
iscsi_boot_rd_attr(eth_prefix, prefix-len, ISCSI_BOOT_ETH_PREFIX_LEN);
iscsi_boot_rd_attr(eth_subnet, subnet-mask, ISCSI_BOOT_ETH_SUBNET_MASK);
iscsi_boot_rd_attr(eth_origin, origin, ISCSI_BOOT_ETH_ORIGIN);
iscsi_boot_rd_attr(eth_gateway, gateway, ISCSI_BOOT_ETH_GATEWAY);
@ -181,6 +182,7 @@ static struct attribute *ethernet_attrs[] = {
&iscsi_boot_attr_eth_index.attr,
&iscsi_boot_attr_eth_flags.attr,
&iscsi_boot_attr_eth_ip.attr,
&iscsi_boot_attr_eth_prefix.attr,
&iscsi_boot_attr_eth_subnet.attr,
&iscsi_boot_attr_eth_origin.attr,
&iscsi_boot_attr_eth_gateway.attr,
@ -208,6 +210,9 @@ static umode_t iscsi_boot_eth_attr_is_visible(struct kobject *kobj,
else if (attr == &iscsi_boot_attr_eth_ip.attr)
return boot_kobj->is_visible(boot_kobj->data,
ISCSI_BOOT_ETH_IP_ADDR);
else if (attr == &iscsi_boot_attr_eth_prefix.attr)
return boot_kobj->is_visible(boot_kobj->data,
ISCSI_BOOT_ETH_PREFIX_LEN);
else if (attr == &iscsi_boot_attr_eth_subnet.attr)
return boot_kobj->is_visible(boot_kobj->data,
ISCSI_BOOT_ETH_SUBNET_MASK);