From 943c157b7934a3b9fcf5290328be3b84d1a1a104 Mon Sep 17 00:00:00 2001
From: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Date: Mon, 1 Aug 2011 03:26:13 -0700
Subject: [PATCH] [SCSI] qla4xxx: Added support to update mtu
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
---
drivers/scsi/qla4xxx/ql4_def.h | 1 +
drivers/scsi/qla4xxx/ql4_mbx.c | 2 ++
drivers/scsi/qla4xxx/ql4_os.c | 12 ++++++++++++
3 files changed, 15 insertions(+)
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index 30efb6c6594c7a..90dc621a926a39 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -343,6 +343,7 @@ struct ipaddress_config {
struct in6_addr ipv6_addr0;
struct in6_addr ipv6_addr1;
struct in6_addr ipv6_default_router_addr;
+ uint16_t eth_mtu_size;
};
#define QL4_CHAP_MAX_NAME_LEN 256
diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 72ec7e092296c3..8741cfa98427c9 100644
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -333,6 +333,8 @@ qla4xxx_update_local_ip(struct scsi_qla_host *ha,
ha->ip_config.ipv4_options = le16_to_cpu(init_fw_cb->ipv4_ip_opts);
ha->ip_config.ipv4_addr_state =
le16_to_cpu(init_fw_cb->ipv4_addr_state);
+ ha->ip_config.eth_mtu_size =
+ le16_to_cpu(init_fw_cb->eth_mtu_size);
if (ha->acb_version == ACB_SUPPORTED) {
ha->ip_config.ipv6_options = le16_to_cpu(init_fw_cb->ipv6_opts);
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 15355f95f56037..58a270b74b2a6d 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -230,6 +230,7 @@ static mode_t ql4_attr_is_visible(int param_type, int param)
case ISCSI_NET_PARAM_VLAN_ID:
case ISCSI_NET_PARAM_VLAN_PRIORITY:
case ISCSI_NET_PARAM_VLAN_ENABLED:
+ case ISCSI_NET_PARAM_MTU:
return S_IRUGO;
default:
return 0;
@@ -335,6 +336,9 @@ static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
IPV6_OPT_VLAN_TAGGING_ENABLE) ?
"enabled" : "disabled");
break;
+ case ISCSI_NET_PARAM_MTU:
+ len = sprintf(buf, "%d\n", ha->ip_config.eth_mtu_size);
+ break;
default:
len = -ENOSYS;
}
@@ -718,6 +722,10 @@ static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
init_fw_cb->ipv6_opts &=
cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
break;
+ case ISCSI_NET_PARAM_MTU:
+ init_fw_cb->eth_mtu_size =
+ cpu_to_le16(*(uint16_t *)iface_param->value);
+ break;
default:
ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
iface_param->param);
@@ -778,6 +786,10 @@ static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
init_fw_cb->ipv4_ip_opts &=
cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
break;
+ case ISCSI_NET_PARAM_MTU:
+ init_fw_cb->eth_mtu_size =
+ cpu_to_le16(*(uint16_t *)iface_param->value);
+ break;
default:
ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",
iface_param->param);
--
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