/**
* beiscsi_get_host_param - get the iscsi parameter
* @shost: pointer to scsi_host structure
* @param: parameter type identifier
* @buf: buffer pointer
*
* returns host parameter
*/
int beiscsi_get_host_param(struct Scsi_Host *shost,
enum iscsi_host_param param, char *buf)
{
struct beiscsi_hba *phba = (struct beiscsi_hba *)iscsi_host_priv(shost);
struct be_cmd_resp_get_mac_addr *resp;
struct be_mcc_wrb *wrb;
unsigned int tag, wrb_num;
int len = 0;
unsigned short status, extd_status;
struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
SE_DEBUG(DBG_LVL_8, "In beiscsi_get_host_param, param= %d\n", param);
switch (param) {
case ISCSI_HOST_PARAM_HWADDRESS:
tag = be_cmd_get_mac_addr(phba);
if (!tag) {
SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed \n");
return -1;
} else
wait_event_interruptible(phba->ctrl.mcc_wait[tag],
phba->ctrl.mcc_numtag[tag]);
wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
if (status || extd_status) {
SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed"
" status = %d extd_status = %d \n",
status, extd_status);
free_mcc_tag(&phba->ctrl, tag);
return -1;
} else {
wrb = queue_get_wrb(mccq, wrb_num);
free_mcc_tag(&phba->ctrl, tag);
resp = embedded_payload(wrb);
memcpy(phba->mac_address, resp->mac_address, ETH_ALEN);
len = frmt_macaddr(buf, PAGE_SIZE, (const unsigned char *)phba->mac_address, ETH_ALEN);
}
break;
default:
return iscsi2_host_get_param(shost, param, buf);
}
return len;
}
int beiscsi_get_macaddr(char *buf, struct beiscsi_hba *phba)
{
struct be_cmd_resp_get_mac_addr *resp;
struct be_mcc_wrb *wrb;
unsigned int tag, wrb_num;
unsigned short status, extd_status;
struct be_queue_info *mccq = &phba->ctrl.mcc_obj.q;
int rc;
if (phba->read_mac_address)
return sysfs_format_mac(buf, phba->mac_address,
ETH_ALEN);
tag = be_cmd_get_mac_addr(phba);
if (!tag) {
SE_DEBUG(DBG_LVL_1, "be_cmd_get_mac_addr Failed\n");
return -EBUSY;
} else
wait_event_interruptible(phba->ctrl.mcc_wait[tag],
phba->ctrl.mcc_numtag[tag]);
wrb_num = (phba->ctrl.mcc_numtag[tag] & 0x00FF0000) >> 16;
extd_status = (phba->ctrl.mcc_numtag[tag] & 0x0000FF00) >> 8;
status = phba->ctrl.mcc_numtag[tag] & 0x000000FF;
if (status || extd_status) {
SE_DEBUG(DBG_LVL_1, "Failed to get be_cmd_get_mac_addr"
" status = %d extd_status = %d\n",
status, extd_status);
free_mcc_tag(&phba->ctrl, tag);
return -EAGAIN;
}
wrb = queue_get_wrb(mccq, wrb_num);
free_mcc_tag(&phba->ctrl, tag);
resp = embedded_payload(wrb);
memcpy(phba->mac_address, resp->mac_address, ETH_ALEN);
rc = sysfs_format_mac(buf, phba->mac_address,
ETH_ALEN);
phba->read_mac_address = 1;
return rc;
}