[SCSI] qla4xxx: Add VLAN support

Add support to set VLAN and show vlan settings in sysfs

Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com>
Signed-off-by: Harish Zunjarrao <harish.zunjarrao@qlogic.com>
[Patch updated to new defines]
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 8ffdd34..83e009c 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -484,6 +484,7 @@ struct addr_ctrl_blk {
 #define TCPOPT_DHCP_ENABLE             0x0200
        uint16_t ipv4_ip_opts;  /* 34-35 */
 #define IPOPT_IPV4_PROTOCOL_ENABLE     0x8000
+#define IPOPT_VLAN_TAGGING_ENABLE      0x2000
 
        uint16_t iscsi_max_pdu_size;    /* 36-37 */
        uint8_t ipv4_tos;       /* 38 */
@@ -535,6 +536,7 @@ struct addr_ctrl_blk {
        uint16_t ipv6_port;     /* 204-205 */
        uint16_t ipv6_opts;     /* 206-207 */
 #define IPV6_OPT_IPV6_PROTOCOL_ENABLE  0x8000
+#define IPV6_OPT_VLAN_TAGGING_ENABLE   0x2000
 
        uint16_t ipv6_addtl_opts;       /* 208-209 */
 #define IPV6_ADDOPT_NEIGHBOR_DISCOVERY_ADDR_ENABLE     0x0002 /* Pri ACB

diff --git a/drivers/scsi/qla4xxx/ql4_mbx.c b/drivers/scsi/qla4xxx/ql4_mbx.c
index 0e7530e..ea04b6c 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_mbx.c
+++ b/drivers/scsi/qla4xxx/ql4_mbx.c
@@ -351,6 +351,8 @@ qla4xxx_update_local_ip(struct scsi_qla_host *ha,
               min(sizeof(ha->ip_config.gateway),
                   sizeof(init_fw_cb->ipv4_gw_addr)));
 
+       ha->ip_config.ipv4_vlan_tag = be16_to_cpu(init_fw_cb->ipv4_vlan_tag);
+
        if (is_ipv6_enabled(ha)) {
                /* Save IPv6 Address */
                ha->ip_config.ipv6_link_local_state =
@@ -378,6 +380,8 @@ qla4xxx_update_local_ip(struct scsi_qla_host *ha,
                       init_fw_cb->ipv6_dflt_rtr_addr,
                       min(sizeof(ha->ip_config.ipv6_default_router_addr),
                           sizeof(init_fw_cb->ipv6_dflt_rtr_addr)));
+               ha->ip_config.ipv6_vlan_tag =
+                               be16_to_cpu(init_fw_cb->ipv6_vlan_tag);
        }
 }
 

diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index a9da315..d5f9f60 100644 (file)
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -185,6 +185,9 @@ static mode_t ql4_attr_is_visible(int param_type, int param)
                case ISCSI_NET_PARAM_IPV6_ROUTER:
                case ISCSI_NET_PARAM_IPV6_ADDR_AUTOCFG:
                case ISCSI_NET_PARAM_IPV6_LINKLOCAL_AUTOCFG:
+               case ISCSI_NET_PARAM_VLAN_ID:
+               case ISCSI_NET_PARAM_VLAN_PRIORITY:
+               case ISCSI_NET_PARAM_VLAN_ENABLED:
                        return S_IRUGO;
                default:
                        return 0;
@@ -258,6 +261,38 @@ static int qla4xxx_get_iface_param(struct iscsi_iface *iface,
                               IPV6_ADDOPT_AUTOCONFIG_LINK_LOCAL_ADDR) ?
                               "auto" : "static");
                break;
+       case ISCSI_NET_PARAM_VLAN_ID:
+               if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
+                       len = sprintf(buf, "%d\n",
+                                     (ha->ip_config.ipv4_vlan_tag &
+                                      ISCSI_MAX_VLAN_ID));
+               else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
+                       len = sprintf(buf, "%d\n",
+                                     (ha->ip_config.ipv6_vlan_tag &
+                                      ISCSI_MAX_VLAN_ID));
+               break;
+       case ISCSI_NET_PARAM_VLAN_PRIORITY:
+               if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
+                       len = sprintf(buf, "%d\n",
+                                     ((ha->ip_config.ipv4_vlan_tag >> 13) &
+                                       ISCSI_MAX_VLAN_PRIORITY));
+               else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
+                       len = sprintf(buf, "%d\n",
+                                     ((ha->ip_config.ipv6_vlan_tag >> 13) &
+                                       ISCSI_MAX_VLAN_PRIORITY));
+               break;
+       case ISCSI_NET_PARAM_VLAN_ENABLED:
+               if (iface->iface_type == ISCSI_IFACE_TYPE_IPV4)
+                       len = sprintf(buf, "%s\n",
+                                     (ha->ip_config.ipv4_options &
+                                      IPOPT_VLAN_TAGGING_ENABLE) ?
+                                      "enabled" : "disabled");
+               else if (iface->iface_type == ISCSI_IFACE_TYPE_IPV6)
+                       len = sprintf(buf, "%s\n",
+                                     (ha->ip_config.ipv6_options &
+                                      IPV6_OPT_VLAN_TAGGING_ENABLE) ?
+                                      "enabled" : "disabled");
+               break;
        default:
                len = -ENOSYS;
        }
@@ -479,7 +514,16 @@ static void qla4xxx_set_ipv6(struct scsi_qla_host *ha,
        case ISCSI_NET_PARAM_VLAN_ID:
                if (iface_param->len != sizeof(init_fw_cb->ipv6_vlan_tag))
                        break;
-               init_fw_cb->ipv6_vlan_tag = *(uint16_t *)iface_param->value;
+               init_fw_cb->ipv6_vlan_tag =
+                               cpu_to_be16(*(uint16_t *)iface_param->value);
+               break;
+       case ISCSI_NET_PARAM_VLAN_ENABLED:
+               if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
+                       init_fw_cb->ipv6_opts |=
+                               cpu_to_le16(IPV6_OPT_VLAN_TAGGING_ENABLE);
+               else
+                       init_fw_cb->ipv6_opts &=
+                               cpu_to_le16(~IPV6_OPT_VLAN_TAGGING_ENABLE);
                break;
        default:
                ql4_printk(KERN_ERR, ha, "Unknown IPv6 param = %d\n",
@@ -530,7 +574,16 @@ static void qla4xxx_set_ipv4(struct scsi_qla_host *ha,
        case ISCSI_NET_PARAM_VLAN_ID:
                if (iface_param->len != sizeof(init_fw_cb->ipv4_vlan_tag))
                        break;
-               init_fw_cb->ipv4_vlan_tag = *(uint16_t *)iface_param->value;
+               init_fw_cb->ipv4_vlan_tag =
+                               cpu_to_be16(*(uint16_t *)iface_param->value);
+               break;
+       case ISCSI_NET_PARAM_VLAN_ENABLED:
+               if (iface_param->value[0] == ISCSI_VLAN_ENABLE)
+                       init_fw_cb->ipv4_ip_opts |=
+                                       cpu_to_le16(IPOPT_VLAN_TAGGING_ENABLE);
+               else
+                       init_fw_cb->ipv4_ip_opts &=
+                                       cpu_to_le16(~IPOPT_VLAN_TAGGING_ENABLE);
                break;
        default:
                ql4_printk(KERN_ERR, ha, "Unknown IPv4 param = %d\n",