![David C Somayajulu](/assets/img/avatar_default.png)
This patch provides the following: 1. remove warning ignoring the return value of pci_set_mwi() 2. allows HBA to be online when the initiator ip address is uninitialized. Signed-off-by: David Somayajulu <david.somayajulu@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
1349 lines
39 KiB
C
1349 lines
39 KiB
C
/*
|
|
* QLogic iSCSI HBA Driver
|
|
* Copyright (c) 2003-2006 QLogic Corporation
|
|
*
|
|
* See LICENSE.qla4xxx for copyright and licensing details.
|
|
*/
|
|
|
|
#include "ql4_def.h"
|
|
#include "ql4_glbl.h"
|
|
#include "ql4_dbg.h"
|
|
#include "ql4_inline.h"
|
|
|
|
static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
|
|
uint32_t fw_ddb_index);
|
|
|
|
static void ql4xxx_set_mac_number(struct scsi_qla_host *ha)
|
|
{
|
|
uint32_t value;
|
|
uint8_t func_number;
|
|
unsigned long flags;
|
|
|
|
/* Get the function number */
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
value = readw(&ha->reg->ctrl_status);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
func_number = (uint8_t) ((value >> 4) & 0x30);
|
|
switch (value & ISP_CONTROL_FN_MASK) {
|
|
case ISP_CONTROL_FN0_SCSI:
|
|
ha->mac_index = 1;
|
|
break;
|
|
case ISP_CONTROL_FN1_SCSI:
|
|
ha->mac_index = 3;
|
|
break;
|
|
default:
|
|
DEBUG2(printk("scsi%ld: %s: Invalid function number, "
|
|
"ispControlStatus = 0x%x\n", ha->host_no,
|
|
__func__, value));
|
|
break;
|
|
}
|
|
DEBUG2(printk("scsi%ld: %s: mac_index %d.\n", ha->host_no, __func__,
|
|
ha->mac_index));
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_free_ddb - deallocate ddb
|
|
* @ha: pointer to host adapter structure.
|
|
* @ddb_entry: pointer to device database entry
|
|
*
|
|
* This routine deallocates and unlinks the specified ddb_entry from the
|
|
* adapter's
|
|
**/
|
|
static void qla4xxx_free_ddb(struct scsi_qla_host *ha,
|
|
struct ddb_entry *ddb_entry)
|
|
{
|
|
/* Remove device entry from list */
|
|
list_del_init(&ddb_entry->list);
|
|
|
|
/* Remove device pointer from index mapping arrays */
|
|
ha->fw_ddb_index_map[ddb_entry->fw_ddb_index] =
|
|
(struct ddb_entry *) INVALID_ENTRY;
|
|
ha->tot_ddbs--;
|
|
|
|
/* Free memory and scsi-ml struct for device entry */
|
|
qla4xxx_destroy_sess(ddb_entry);
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_free_ddb_list - deallocate all ddbs
|
|
* @ha: pointer to host adapter structure.
|
|
*
|
|
* This routine deallocates and removes all devices on the sppecified adapter.
|
|
**/
|
|
void qla4xxx_free_ddb_list(struct scsi_qla_host *ha)
|
|
{
|
|
struct list_head *ptr;
|
|
struct ddb_entry *ddb_entry;
|
|
|
|
while (!list_empty(&ha->ddb_list)) {
|
|
ptr = ha->ddb_list.next;
|
|
/* Free memory for device entry and remove */
|
|
ddb_entry = list_entry(ptr, struct ddb_entry, list);
|
|
qla4xxx_free_ddb(ha, ddb_entry);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_init_rings - initialize hw queues
|
|
* @ha: pointer to host adapter structure.
|
|
*
|
|
* This routine initializes the internal queues for the specified adapter.
|
|
* The QLA4010 requires us to restart the queues at index 0.
|
|
* The QLA4000 doesn't care, so just default to QLA4010's requirement.
|
|
**/
|
|
int qla4xxx_init_rings(struct scsi_qla_host *ha)
|
|
{
|
|
unsigned long flags = 0;
|
|
|
|
/* Initialize request queue. */
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
ha->request_out = 0;
|
|
ha->request_in = 0;
|
|
ha->request_ptr = &ha->request_ring[ha->request_in];
|
|
ha->req_q_count = REQUEST_QUEUE_DEPTH;
|
|
|
|
/* Initialize response queue. */
|
|
ha->response_in = 0;
|
|
ha->response_out = 0;
|
|
ha->response_ptr = &ha->response_ring[ha->response_out];
|
|
|
|
/*
|
|
* Initialize DMA Shadow registers. The firmware is really supposed to
|
|
* take care of this, but on some uniprocessor systems, the shadow
|
|
* registers aren't cleared-- causing the interrupt_handler to think
|
|
* there are responses to be processed when there aren't.
|
|
*/
|
|
ha->shadow_regs->req_q_out = __constant_cpu_to_le32(0);
|
|
ha->shadow_regs->rsp_q_in = __constant_cpu_to_le32(0);
|
|
wmb();
|
|
|
|
writel(0, &ha->reg->req_q_in);
|
|
writel(0, &ha->reg->rsp_q_out);
|
|
readl(&ha->reg->rsp_q_out);
|
|
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_validate_mac_address - validate adapter MAC address(es)
|
|
* @ha: pointer to host adapter structure.
|
|
*
|
|
**/
|
|
static int qla4xxx_validate_mac_address(struct scsi_qla_host *ha)
|
|
{
|
|
struct flash_sys_info *sys_info;
|
|
dma_addr_t sys_info_dma;
|
|
int status = QLA_ERROR;
|
|
|
|
sys_info = dma_alloc_coherent(&ha->pdev->dev, sizeof(*sys_info),
|
|
&sys_info_dma, GFP_KERNEL);
|
|
if (sys_info == NULL) {
|
|
DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
|
|
ha->host_no, __func__));
|
|
|
|
goto exit_validate_mac_no_free;
|
|
}
|
|
memset(sys_info, 0, sizeof(*sys_info));
|
|
|
|
/* Get flash sys info */
|
|
if (qla4xxx_get_flash(ha, sys_info_dma, FLASH_OFFSET_SYS_INFO,
|
|
sizeof(*sys_info)) != QLA_SUCCESS) {
|
|
DEBUG2(printk("scsi%ld: %s: get_flash FLASH_OFFSET_SYS_INFO "
|
|
"failed\n", ha->host_no, __func__));
|
|
|
|
goto exit_validate_mac;
|
|
}
|
|
|
|
/* Save M.A.C. address & serial_number */
|
|
memcpy(ha->my_mac, &sys_info->physAddr[0].address[0],
|
|
min(sizeof(ha->my_mac),
|
|
sizeof(sys_info->physAddr[0].address)));
|
|
memcpy(ha->serial_number, &sys_info->acSerialNumber,
|
|
min(sizeof(ha->serial_number),
|
|
sizeof(sys_info->acSerialNumber)));
|
|
|
|
status = QLA_SUCCESS;
|
|
|
|
exit_validate_mac:
|
|
dma_free_coherent(&ha->pdev->dev, sizeof(*sys_info), sys_info,
|
|
sys_info_dma);
|
|
|
|
exit_validate_mac_no_free:
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_init_local_data - initialize adapter specific local data
|
|
* @ha: pointer to host adapter structure.
|
|
*
|
|
**/
|
|
static int qla4xxx_init_local_data(struct scsi_qla_host *ha)
|
|
{
|
|
/* Initilize aen queue */
|
|
ha->aen_q_count = MAX_AEN_ENTRIES;
|
|
|
|
return qla4xxx_get_firmware_status(ha);
|
|
}
|
|
|
|
static int qla4xxx_fw_ready(struct scsi_qla_host *ha)
|
|
{
|
|
uint32_t timeout_count;
|
|
int ready = 0;
|
|
|
|
DEBUG2(dev_info(&ha->pdev->dev, "Waiting for Firmware Ready..\n"));
|
|
for (timeout_count = ADAPTER_INIT_TOV; timeout_count > 0;
|
|
timeout_count--) {
|
|
if (test_and_clear_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags))
|
|
qla4xxx_get_dhcp_ip_address(ha);
|
|
|
|
/* Get firmware state. */
|
|
if (qla4xxx_get_firmware_state(ha) != QLA_SUCCESS) {
|
|
DEBUG2(printk("scsi%ld: %s: unable to get firmware "
|
|
"state\n", ha->host_no, __func__));
|
|
break;
|
|
|
|
}
|
|
|
|
if (ha->firmware_state & FW_STATE_ERROR) {
|
|
DEBUG2(printk("scsi%ld: %s: an unrecoverable error has"
|
|
" occurred\n", ha->host_no, __func__));
|
|
break;
|
|
|
|
}
|
|
if (ha->firmware_state & FW_STATE_CONFIG_WAIT) {
|
|
/*
|
|
* The firmware has not yet been issued an Initialize
|
|
* Firmware command, so issue it now.
|
|
*/
|
|
if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR)
|
|
break;
|
|
|
|
/* Go back and test for ready state - no wait. */
|
|
continue;
|
|
}
|
|
|
|
if (ha->firmware_state == FW_STATE_READY) {
|
|
DEBUG2(dev_info(&ha->pdev->dev, "Firmware Ready..\n"));
|
|
/* The firmware is ready to process SCSI commands. */
|
|
DEBUG2(dev_info(&ha->pdev->dev,
|
|
"scsi%ld: %s: MEDIA TYPE - %s\n",
|
|
ha->host_no,
|
|
__func__, (ha->addl_fw_state &
|
|
FW_ADDSTATE_OPTICAL_MEDIA)
|
|
!= 0 ? "OPTICAL" : "COPPER"));
|
|
DEBUG2(dev_info(&ha->pdev->dev,
|
|
"scsi%ld: %s: DHCP STATE Enabled "
|
|
"%s\n",
|
|
ha->host_no, __func__,
|
|
(ha->addl_fw_state &
|
|
FW_ADDSTATE_DHCP_ENABLED) != 0 ?
|
|
"YES" : "NO"));
|
|
DEBUG2(dev_info(&ha->pdev->dev,
|
|
"scsi%ld: %s: LINK %s\n",
|
|
ha->host_no, __func__,
|
|
(ha->addl_fw_state &
|
|
FW_ADDSTATE_LINK_UP) != 0 ?
|
|
"UP" : "DOWN"));
|
|
DEBUG2(dev_info(&ha->pdev->dev,
|
|
"scsi%ld: %s: iSNS Service "
|
|
"Started %s\n",
|
|
ha->host_no, __func__,
|
|
(ha->addl_fw_state &
|
|
FW_ADDSTATE_ISNS_SVC_ENABLED) != 0 ?
|
|
"YES" : "NO"));
|
|
|
|
ready = 1;
|
|
break;
|
|
}
|
|
DEBUG2(printk("scsi%ld: %s: waiting on fw, state=%x:%x - "
|
|
"seconds expired= %d\n", ha->host_no, __func__,
|
|
ha->firmware_state, ha->addl_fw_state,
|
|
timeout_count));
|
|
if (is_qla4032(ha) &&
|
|
!(ha->addl_fw_state & FW_ADDSTATE_LINK_UP) &&
|
|
(timeout_count < ADAPTER_INIT_TOV - 5)) {
|
|
break;
|
|
}
|
|
|
|
msleep(1000);
|
|
} /* end of for */
|
|
|
|
if (timeout_count == 0)
|
|
DEBUG2(printk("scsi%ld: %s: FW Initialization timed out!\n",
|
|
ha->host_no, __func__));
|
|
|
|
if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS) {
|
|
DEBUG2(printk("scsi%ld: %s: FW is reporting its waiting to"
|
|
" grab an IP address from DHCP server\n",
|
|
ha->host_no, __func__));
|
|
ready = 1;
|
|
}
|
|
|
|
return ready;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_init_firmware - initializes the firmware.
|
|
* @ha: pointer to host adapter structure.
|
|
*
|
|
**/
|
|
static int qla4xxx_init_firmware(struct scsi_qla_host *ha)
|
|
{
|
|
int status = QLA_ERROR;
|
|
|
|
dev_info(&ha->pdev->dev, "Initializing firmware..\n");
|
|
if (qla4xxx_initialize_fw_cb(ha) == QLA_ERROR) {
|
|
DEBUG2(printk("scsi%ld: %s: Failed to initialize firmware "
|
|
"control block\n", ha->host_no, __func__));
|
|
return status;
|
|
}
|
|
if (!qla4xxx_fw_ready(ha))
|
|
return status;
|
|
|
|
return qla4xxx_get_firmware_status(ha);
|
|
}
|
|
|
|
static struct ddb_entry* qla4xxx_get_ddb_entry(struct scsi_qla_host *ha,
|
|
uint32_t fw_ddb_index,
|
|
uint32_t *new_tgt)
|
|
{
|
|
struct dev_db_entry *fw_ddb_entry = NULL;
|
|
dma_addr_t fw_ddb_entry_dma;
|
|
struct ddb_entry *ddb_entry = NULL;
|
|
int found = 0;
|
|
uint32_t device_state;
|
|
|
|
*new_tgt = 0;
|
|
/* Make sure the dma buffer is valid */
|
|
fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
|
|
sizeof(*fw_ddb_entry),
|
|
&fw_ddb_entry_dma, GFP_KERNEL);
|
|
if (fw_ddb_entry == NULL) {
|
|
DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
|
|
ha->host_no, __func__));
|
|
return NULL;
|
|
}
|
|
|
|
if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
|
|
fw_ddb_entry_dma, NULL, NULL,
|
|
&device_state, NULL, NULL, NULL) ==
|
|
QLA_ERROR) {
|
|
DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
|
|
"fw_ddb_index %d\n", ha->host_no, __func__,
|
|
fw_ddb_index));
|
|
return NULL;
|
|
}
|
|
|
|
/* Allocate DDB if not already allocated. */
|
|
DEBUG2(printk("scsi%ld: %s: Looking for ddb[%d]\n", ha->host_no,
|
|
__func__, fw_ddb_index));
|
|
list_for_each_entry(ddb_entry, &ha->ddb_list, list) {
|
|
if (memcmp(ddb_entry->iscsi_name, fw_ddb_entry->iscsi_name,
|
|
ISCSI_NAME_SIZE) == 0) {
|
|
found++;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found) {
|
|
DEBUG2(printk("scsi%ld: %s: ddb[%d] not found - allocating "
|
|
"new ddb\n", ha->host_no, __func__,
|
|
fw_ddb_index));
|
|
*new_tgt = 1;
|
|
ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
|
|
}
|
|
|
|
/* if not found allocate new ddb */
|
|
dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry), fw_ddb_entry,
|
|
fw_ddb_entry_dma);
|
|
|
|
return ddb_entry;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_update_ddb_entry - update driver's internal ddb
|
|
* @ha: pointer to host adapter structure.
|
|
* @ddb_entry: pointer to device database structure to be filled
|
|
* @fw_ddb_index: index of the ddb entry in fw ddb table
|
|
*
|
|
* This routine updates the driver's internal device database entry
|
|
* with information retrieved from the firmware's device database
|
|
* entry for the specified device. The ddb_entry->fw_ddb_index field
|
|
* must be initialized prior to calling this routine
|
|
*
|
|
**/
|
|
static int qla4xxx_update_ddb_entry(struct scsi_qla_host *ha,
|
|
struct ddb_entry *ddb_entry,
|
|
uint32_t fw_ddb_index)
|
|
{
|
|
struct dev_db_entry *fw_ddb_entry = NULL;
|
|
dma_addr_t fw_ddb_entry_dma;
|
|
int status = QLA_ERROR;
|
|
|
|
if (ddb_entry == NULL) {
|
|
DEBUG2(printk("scsi%ld: %s: ddb_entry is NULL\n", ha->host_no,
|
|
__func__));
|
|
goto exit_update_ddb;
|
|
}
|
|
|
|
/* Make sure the dma buffer is valid */
|
|
fw_ddb_entry = dma_alloc_coherent(&ha->pdev->dev,
|
|
sizeof(*fw_ddb_entry),
|
|
&fw_ddb_entry_dma, GFP_KERNEL);
|
|
if (fw_ddb_entry == NULL) {
|
|
DEBUG2(printk("scsi%ld: %s: Unable to allocate dma buffer.\n",
|
|
ha->host_no, __func__));
|
|
|
|
goto exit_update_ddb;
|
|
}
|
|
|
|
if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, fw_ddb_entry,
|
|
fw_ddb_entry_dma, NULL, NULL,
|
|
&ddb_entry->fw_ddb_device_state, NULL,
|
|
&ddb_entry->tcp_source_port_num,
|
|
&ddb_entry->connection_id) ==
|
|
QLA_ERROR) {
|
|
DEBUG2(printk("scsi%ld: %s: failed get_ddb_entry for "
|
|
"fw_ddb_index %d\n", ha->host_no, __func__,
|
|
fw_ddb_index));
|
|
|
|
goto exit_update_ddb;
|
|
}
|
|
|
|
status = QLA_SUCCESS;
|
|
ddb_entry->target_session_id = le16_to_cpu(fw_ddb_entry->tsid);
|
|
ddb_entry->task_mgmt_timeout =
|
|
le16_to_cpu(fw_ddb_entry->def_timeout);
|
|
ddb_entry->CmdSn = 0;
|
|
ddb_entry->exe_throttle = le16_to_cpu(fw_ddb_entry->exec_throttle);
|
|
ddb_entry->default_relogin_timeout =
|
|
le16_to_cpu(fw_ddb_entry->def_timeout);
|
|
ddb_entry->default_time2wait = le16_to_cpu(fw_ddb_entry->iscsi_def_time2wait);
|
|
|
|
/* Update index in case it changed */
|
|
ddb_entry->fw_ddb_index = fw_ddb_index;
|
|
ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
|
|
|
|
ddb_entry->port = le16_to_cpu(fw_ddb_entry->port);
|
|
ddb_entry->tpgt = le32_to_cpu(fw_ddb_entry->tgt_portal_grp);
|
|
memcpy(&ddb_entry->iscsi_name[0], &fw_ddb_entry->iscsi_name[0],
|
|
min(sizeof(ddb_entry->iscsi_name),
|
|
sizeof(fw_ddb_entry->iscsi_name)));
|
|
memcpy(&ddb_entry->ip_addr[0], &fw_ddb_entry->ip_addr[0],
|
|
min(sizeof(ddb_entry->ip_addr), sizeof(fw_ddb_entry->ip_addr)));
|
|
|
|
DEBUG2(printk("scsi%ld: %s: ddb[%d] - State= %x status= %d.\n",
|
|
ha->host_no, __func__, fw_ddb_index,
|
|
ddb_entry->fw_ddb_device_state, status));
|
|
|
|
exit_update_ddb:
|
|
if (fw_ddb_entry)
|
|
dma_free_coherent(&ha->pdev->dev, sizeof(*fw_ddb_entry),
|
|
fw_ddb_entry, fw_ddb_entry_dma);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_alloc_ddb - allocate device database entry
|
|
* @ha: Pointer to host adapter structure.
|
|
* @fw_ddb_index: Firmware's device database index
|
|
*
|
|
* This routine allocates a ddb_entry, ititializes some values, and
|
|
* inserts it into the ddb list.
|
|
**/
|
|
static struct ddb_entry * qla4xxx_alloc_ddb(struct scsi_qla_host *ha,
|
|
uint32_t fw_ddb_index)
|
|
{
|
|
struct ddb_entry *ddb_entry;
|
|
|
|
DEBUG2(printk("scsi%ld: %s: fw_ddb_index [%d]\n", ha->host_no,
|
|
__func__, fw_ddb_index));
|
|
|
|
ddb_entry = qla4xxx_alloc_sess(ha);
|
|
if (ddb_entry == NULL) {
|
|
DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
|
|
"to add fw_ddb_index [%d]\n",
|
|
ha->host_no, __func__, fw_ddb_index));
|
|
return ddb_entry;
|
|
}
|
|
|
|
ddb_entry->fw_ddb_index = fw_ddb_index;
|
|
atomic_set(&ddb_entry->port_down_timer, ha->port_down_retry_count);
|
|
atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY);
|
|
atomic_set(&ddb_entry->relogin_timer, 0);
|
|
atomic_set(&ddb_entry->relogin_retry_count, 0);
|
|
atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
|
|
list_add_tail(&ddb_entry->list, &ha->ddb_list);
|
|
ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry;
|
|
ha->tot_ddbs++;
|
|
|
|
return ddb_entry;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_configure_ddbs - builds driver ddb list
|
|
* @ha: Pointer to host adapter structure.
|
|
*
|
|
* This routine searches for all valid firmware ddb entries and builds
|
|
* an internal ddb list. Ddbs that are considered valid are those with
|
|
* a device state of SESSION_ACTIVE.
|
|
**/
|
|
static int qla4xxx_build_ddb_list(struct scsi_qla_host *ha)
|
|
{
|
|
int status = QLA_SUCCESS;
|
|
uint32_t fw_ddb_index = 0;
|
|
uint32_t next_fw_ddb_index = 0;
|
|
uint32_t ddb_state;
|
|
uint32_t conn_err, err_code;
|
|
struct ddb_entry *ddb_entry;
|
|
uint32_t new_tgt;
|
|
|
|
dev_info(&ha->pdev->dev, "Initializing DDBs ...\n");
|
|
for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES;
|
|
fw_ddb_index = next_fw_ddb_index) {
|
|
/* First, let's see if a device exists here */
|
|
if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index, NULL, 0, NULL,
|
|
&next_fw_ddb_index, &ddb_state,
|
|
&conn_err, NULL, NULL) ==
|
|
QLA_ERROR) {
|
|
DEBUG2(printk("scsi%ld: %s: get_ddb_entry, "
|
|
"fw_ddb_index %d failed", ha->host_no,
|
|
__func__, fw_ddb_index));
|
|
return QLA_ERROR;
|
|
}
|
|
|
|
DEBUG2(printk("scsi%ld: %s: Getting DDB[%d] ddbstate=0x%x, "
|
|
"next_fw_ddb_index=%d.\n", ha->host_no, __func__,
|
|
fw_ddb_index, ddb_state, next_fw_ddb_index));
|
|
|
|
/* Issue relogin, if necessary. */
|
|
if (ddb_state == DDB_DS_SESSION_FAILED ||
|
|
ddb_state == DDB_DS_NO_CONNECTION_ACTIVE) {
|
|
/* Try and login to device */
|
|
DEBUG2(printk("scsi%ld: %s: Login to DDB[%d]\n",
|
|
ha->host_no, __func__, fw_ddb_index));
|
|
err_code = ((conn_err & 0x00ff0000) >> 16);
|
|
if (err_code == 0x1c || err_code == 0x06) {
|
|
DEBUG2(printk("scsi%ld: %s send target "
|
|
"completed "
|
|
"or access denied failure\n",
|
|
ha->host_no, __func__));
|
|
} else {
|
|
qla4xxx_set_ddb_entry(ha, fw_ddb_index, 0);
|
|
if (qla4xxx_get_fwddb_entry(ha, fw_ddb_index,
|
|
NULL, 0, NULL, &next_fw_ddb_index,
|
|
&ddb_state, &conn_err, NULL, NULL)
|
|
== QLA_ERROR) {
|
|
DEBUG2(printk("scsi%ld: %s:"
|
|
"get_ddb_entry %d failed\n",
|
|
ha->host_no,
|
|
__func__, fw_ddb_index));
|
|
return QLA_ERROR;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (ddb_state != DDB_DS_SESSION_ACTIVE)
|
|
goto next_one;
|
|
/*
|
|
* if fw_ddb with session active state found,
|
|
* add to ddb_list
|
|
*/
|
|
DEBUG2(printk("scsi%ld: %s: DDB[%d] added to list\n",
|
|
ha->host_no, __func__, fw_ddb_index));
|
|
|
|
/* Add DDB to internal our ddb list. */
|
|
ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
|
|
if (ddb_entry == NULL) {
|
|
DEBUG2(printk("scsi%ld: %s: Unable to allocate memory "
|
|
"for device at fw_ddb_index %d\n",
|
|
ha->host_no, __func__, fw_ddb_index));
|
|
return QLA_ERROR;
|
|
}
|
|
/* Fill in the device structure */
|
|
if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
|
|
QLA_ERROR) {
|
|
ha->fw_ddb_index_map[fw_ddb_index] =
|
|
(struct ddb_entry *)INVALID_ENTRY;
|
|
|
|
|
|
DEBUG2(printk("scsi%ld: %s: update_ddb_entry failed "
|
|
"for fw_ddb_index %d.\n",
|
|
ha->host_no, __func__, fw_ddb_index));
|
|
return QLA_ERROR;
|
|
}
|
|
|
|
next_one:
|
|
/* We know we've reached the last device when
|
|
* next_fw_ddb_index is 0 */
|
|
if (next_fw_ddb_index == 0)
|
|
break;
|
|
}
|
|
|
|
dev_info(&ha->pdev->dev, "DDB list done..\n");
|
|
|
|
return status;
|
|
}
|
|
|
|
struct qla4_relog_scan {
|
|
int halt_wait;
|
|
uint32_t conn_err;
|
|
uint32_t err_code;
|
|
uint32_t fw_ddb_index;
|
|
uint32_t next_fw_ddb_index;
|
|
uint32_t fw_ddb_device_state;
|
|
};
|
|
|
|
static int qla4_test_rdy(struct scsi_qla_host *ha, struct qla4_relog_scan *rs)
|
|
{
|
|
struct ddb_entry *ddb_entry;
|
|
|
|
/*
|
|
* Don't want to do a relogin if connection
|
|
* error is 0x1c.
|
|
*/
|
|
rs->err_code = ((rs->conn_err & 0x00ff0000) >> 16);
|
|
if (rs->err_code == 0x1c || rs->err_code == 0x06) {
|
|
DEBUG2(printk(
|
|
"scsi%ld: %s send target"
|
|
" completed or "
|
|
"access denied failure\n",
|
|
ha->host_no, __func__));
|
|
} else {
|
|
/* We either have a device that is in
|
|
* the process of relogging in or a
|
|
* device that is waiting to be
|
|
* relogged in */
|
|
rs->halt_wait = 0;
|
|
|
|
ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha,
|
|
rs->fw_ddb_index);
|
|
if (ddb_entry == NULL)
|
|
return QLA_ERROR;
|
|
|
|
if (ddb_entry->dev_scan_wait_to_start_relogin != 0
|
|
&& time_after_eq(jiffies,
|
|
ddb_entry->
|
|
dev_scan_wait_to_start_relogin))
|
|
{
|
|
ddb_entry->dev_scan_wait_to_start_relogin = 0;
|
|
qla4xxx_set_ddb_entry(ha, rs->fw_ddb_index, 0);
|
|
}
|
|
}
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
static int qla4_scan_for_relogin(struct scsi_qla_host *ha,
|
|
struct qla4_relog_scan *rs)
|
|
{
|
|
int error;
|
|
|
|
/* scan for relogins
|
|
* ----------------- */
|
|
for (rs->fw_ddb_index = 0; rs->fw_ddb_index < MAX_DDB_ENTRIES;
|
|
rs->fw_ddb_index = rs->next_fw_ddb_index) {
|
|
if (qla4xxx_get_fwddb_entry(ha, rs->fw_ddb_index, NULL, 0,
|
|
NULL, &rs->next_fw_ddb_index,
|
|
&rs->fw_ddb_device_state,
|
|
&rs->conn_err, NULL, NULL)
|
|
== QLA_ERROR)
|
|
return QLA_ERROR;
|
|
|
|
if (rs->fw_ddb_device_state == DDB_DS_LOGIN_IN_PROCESS)
|
|
rs->halt_wait = 0;
|
|
|
|
if (rs->fw_ddb_device_state == DDB_DS_SESSION_FAILED ||
|
|
rs->fw_ddb_device_state == DDB_DS_NO_CONNECTION_ACTIVE) {
|
|
error = qla4_test_rdy(ha, rs);
|
|
if (error)
|
|
return error;
|
|
}
|
|
|
|
/* We know we've reached the last device when
|
|
* next_fw_ddb_index is 0 */
|
|
if (rs->next_fw_ddb_index == 0)
|
|
break;
|
|
}
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_devices_ready - wait for target devices to be logged in
|
|
* @ha: pointer to adapter structure
|
|
*
|
|
* This routine waits up to ql4xdiscoverywait seconds
|
|
* F/W database during driver load time.
|
|
**/
|
|
static int qla4xxx_devices_ready(struct scsi_qla_host *ha)
|
|
{
|
|
int error;
|
|
unsigned long discovery_wtime;
|
|
struct qla4_relog_scan rs;
|
|
|
|
discovery_wtime = jiffies + (ql4xdiscoverywait * HZ);
|
|
|
|
DEBUG(printk("Waiting (%d) for devices ...\n", ql4xdiscoverywait));
|
|
do {
|
|
/* poll for AEN. */
|
|
qla4xxx_get_firmware_state(ha);
|
|
if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags)) {
|
|
/* Set time-between-relogin timer */
|
|
qla4xxx_process_aen(ha, RELOGIN_DDB_CHANGED_AENS);
|
|
}
|
|
|
|
/* if no relogins active or needed, halt discvery wait */
|
|
rs.halt_wait = 1;
|
|
|
|
error = qla4_scan_for_relogin(ha, &rs);
|
|
|
|
if (rs.halt_wait) {
|
|
DEBUG2(printk("scsi%ld: %s: Delay halted. Devices "
|
|
"Ready.\n", ha->host_no, __func__));
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
msleep(2000);
|
|
} while (!time_after_eq(jiffies, discovery_wtime));
|
|
|
|
DEBUG3(qla4xxx_get_conn_event_log(ha));
|
|
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
static void qla4xxx_flush_AENS(struct scsi_qla_host *ha)
|
|
{
|
|
unsigned long wtime;
|
|
|
|
/* Flush the 0x8014 AEN from the firmware as a result of
|
|
* Auto connect. We are basically doing get_firmware_ddb()
|
|
* to determine whether we need to log back in or not.
|
|
* Trying to do a set ddb before we have processed 0x8014
|
|
* will result in another set_ddb() for the same ddb. In other
|
|
* words there will be stale entries in the aen_q.
|
|
*/
|
|
wtime = jiffies + (2 * HZ);
|
|
do {
|
|
if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS)
|
|
if (ha->firmware_state & (BIT_2 | BIT_0))
|
|
return;
|
|
|
|
if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
|
|
qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
|
|
|
|
msleep(1000);
|
|
} while (!time_after_eq(jiffies, wtime));
|
|
|
|
}
|
|
|
|
static int qla4xxx_initialize_ddb_list(struct scsi_qla_host *ha)
|
|
{
|
|
uint16_t fw_ddb_index;
|
|
int status = QLA_SUCCESS;
|
|
|
|
/* free the ddb list if is not empty */
|
|
if (!list_empty(&ha->ddb_list))
|
|
qla4xxx_free_ddb_list(ha);
|
|
|
|
for (fw_ddb_index = 0; fw_ddb_index < MAX_DDB_ENTRIES; fw_ddb_index++)
|
|
ha->fw_ddb_index_map[fw_ddb_index] =
|
|
(struct ddb_entry *)INVALID_ENTRY;
|
|
|
|
ha->tot_ddbs = 0;
|
|
|
|
qla4xxx_flush_AENS(ha);
|
|
|
|
/*
|
|
* First perform device discovery for active
|
|
* fw ddb indexes and build
|
|
* ddb list.
|
|
*/
|
|
if ((status = qla4xxx_build_ddb_list(ha)) == QLA_ERROR)
|
|
return status;
|
|
|
|
/* Wait for an AEN */
|
|
qla4xxx_devices_ready(ha);
|
|
|
|
/*
|
|
* Targets can come online after the inital discovery, so processing
|
|
* the aens here will catch them.
|
|
*/
|
|
if (test_and_clear_bit(DPC_AEN, &ha->dpc_flags))
|
|
qla4xxx_process_aen(ha, PROCESS_ALL_AENS);
|
|
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_update_ddb_list - update the driver ddb list
|
|
* @ha: pointer to host adapter structure.
|
|
*
|
|
* This routine obtains device information from the F/W database after
|
|
* firmware or adapter resets. The device table is preserved.
|
|
**/
|
|
int qla4xxx_reinitialize_ddb_list(struct scsi_qla_host *ha)
|
|
{
|
|
int status = QLA_SUCCESS;
|
|
struct ddb_entry *ddb_entry, *detemp;
|
|
|
|
/* Update the device information for all devices. */
|
|
list_for_each_entry_safe(ddb_entry, detemp, &ha->ddb_list, list) {
|
|
qla4xxx_update_ddb_entry(ha, ddb_entry,
|
|
ddb_entry->fw_ddb_index);
|
|
if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
|
|
atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
|
|
DEBUG2(printk ("scsi%ld: %s: ddb index [%d] marked "
|
|
"ONLINE\n", ha->host_no, __func__,
|
|
ddb_entry->fw_ddb_index));
|
|
} else if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
|
|
qla4xxx_mark_device_missing(ha, ddb_entry);
|
|
}
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_relogin_device - re-establish session
|
|
* @ha: Pointer to host adapter structure.
|
|
* @ddb_entry: Pointer to device database entry
|
|
*
|
|
* This routine does a session relogin with the specified device.
|
|
* The ddb entry must be assigned prior to making this call.
|
|
**/
|
|
int qla4xxx_relogin_device(struct scsi_qla_host *ha,
|
|
struct ddb_entry * ddb_entry)
|
|
{
|
|
uint16_t relogin_timer;
|
|
|
|
relogin_timer = max(ddb_entry->default_relogin_timeout,
|
|
(uint16_t)RELOGIN_TOV);
|
|
atomic_set(&ddb_entry->relogin_timer, relogin_timer);
|
|
|
|
DEBUG2(printk("scsi%ld: Relogin index [%d]. TOV=%d\n", ha->host_no,
|
|
ddb_entry->fw_ddb_index, relogin_timer));
|
|
|
|
qla4xxx_set_ddb_entry(ha, ddb_entry->fw_ddb_index, 0);
|
|
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
static int qla4xxx_config_nvram(struct scsi_qla_host *ha)
|
|
{
|
|
unsigned long flags;
|
|
union external_hw_config_reg extHwConfig;
|
|
|
|
DEBUG2(printk("scsi%ld: %s: Get EEProm parameters \n", ha->host_no,
|
|
__func__));
|
|
if (ql4xxx_lock_flash(ha) != QLA_SUCCESS)
|
|
return (QLA_ERROR);
|
|
if (ql4xxx_lock_nvram(ha) != QLA_SUCCESS) {
|
|
ql4xxx_unlock_flash(ha);
|
|
return (QLA_ERROR);
|
|
}
|
|
|
|
/* Get EEPRom Parameters from NVRAM and validate */
|
|
dev_info(&ha->pdev->dev, "Configuring NVRAM ...\n");
|
|
if (qla4xxx_is_nvram_configuration_valid(ha) == QLA_SUCCESS) {
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
extHwConfig.Asuint32_t =
|
|
rd_nvram_word(ha, eeprom_ext_hw_conf_offset(ha));
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
} else {
|
|
/*
|
|
* QLogic adapters should always have a valid NVRAM.
|
|
* If not valid, do not load.
|
|
*/
|
|
dev_warn(&ha->pdev->dev,
|
|
"scsi%ld: %s: EEProm checksum invalid. "
|
|
"Please update your EEPROM\n", ha->host_no,
|
|
__func__);
|
|
|
|
/* set defaults */
|
|
if (is_qla4010(ha))
|
|
extHwConfig.Asuint32_t = 0x1912;
|
|
else if (is_qla4022(ha) | is_qla4032(ha))
|
|
extHwConfig.Asuint32_t = 0x0023;
|
|
}
|
|
DEBUG(printk("scsi%ld: %s: Setting extHwConfig to 0xFFFF%04x\n",
|
|
ha->host_no, __func__, extHwConfig.Asuint32_t));
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
writel((0xFFFF << 16) | extHwConfig.Asuint32_t, isp_ext_hw_conf(ha));
|
|
readl(isp_ext_hw_conf(ha));
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
ql4xxx_unlock_nvram(ha);
|
|
ql4xxx_unlock_flash(ha);
|
|
|
|
return (QLA_SUCCESS);
|
|
}
|
|
|
|
static void qla4x00_pci_config(struct scsi_qla_host *ha)
|
|
{
|
|
uint16_t w;
|
|
int status;
|
|
|
|
dev_info(&ha->pdev->dev, "Configuring PCI space...\n");
|
|
|
|
pci_set_master(ha->pdev);
|
|
status = pci_set_mwi(ha->pdev);
|
|
/*
|
|
* We want to respect framework's setting of PCI configuration space
|
|
* command register and also want to make sure that all bits of
|
|
* interest to us are properly set in command register.
|
|
*/
|
|
pci_read_config_word(ha->pdev, PCI_COMMAND, &w);
|
|
w |= PCI_COMMAND_PARITY | PCI_COMMAND_SERR;
|
|
w &= ~PCI_COMMAND_INTX_DISABLE;
|
|
pci_write_config_word(ha->pdev, PCI_COMMAND, w);
|
|
}
|
|
|
|
static int qla4xxx_start_firmware_from_flash(struct scsi_qla_host *ha)
|
|
{
|
|
int status = QLA_ERROR;
|
|
uint32_t max_wait_time;
|
|
unsigned long flags;
|
|
uint32_t mbox_status;
|
|
|
|
dev_info(&ha->pdev->dev, "Starting firmware ...\n");
|
|
|
|
/*
|
|
* Start firmware from flash ROM
|
|
*
|
|
* WORKAROUND: Stuff a non-constant value that the firmware can
|
|
* use as a seed for a random number generator in MB7 prior to
|
|
* setting BOOT_ENABLE. Fixes problem where the TCP
|
|
* connections use the same TCP ports after each reboot,
|
|
* causing some connections to not get re-established.
|
|
*/
|
|
DEBUG(printk("scsi%d: %s: Start firmware from flash ROM\n",
|
|
ha->host_no, __func__));
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
writel(jiffies, &ha->reg->mailbox[7]);
|
|
if (is_qla4022(ha) | is_qla4032(ha))
|
|
writel(set_rmask(NVR_WRITE_ENABLE),
|
|
&ha->reg->u1.isp4022.nvram);
|
|
|
|
writel(2, &ha->reg->mailbox[6]);
|
|
readl(&ha->reg->mailbox[6]);
|
|
|
|
writel(set_rmask(CSR_BOOT_ENABLE), &ha->reg->ctrl_status);
|
|
readl(&ha->reg->ctrl_status);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
/* Wait for firmware to come UP. */
|
|
max_wait_time = FIRMWARE_UP_TOV * 4;
|
|
do {
|
|
uint32_t ctrl_status;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
ctrl_status = readw(&ha->reg->ctrl_status);
|
|
mbox_status = readw(&ha->reg->mailbox[0]);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
if (ctrl_status & set_rmask(CSR_SCSI_PROCESSOR_INTR))
|
|
break;
|
|
if (mbox_status == MBOX_STS_COMMAND_COMPLETE)
|
|
break;
|
|
|
|
DEBUG2(printk("scsi%ld: %s: Waiting for boot firmware to "
|
|
"complete... ctrl_sts=0x%x, remaining=%d\n",
|
|
ha->host_no, __func__, ctrl_status,
|
|
max_wait_time));
|
|
|
|
msleep(250);
|
|
} while ((max_wait_time--));
|
|
|
|
if (mbox_status == MBOX_STS_COMMAND_COMPLETE) {
|
|
DEBUG(printk("scsi%ld: %s: Firmware has started\n",
|
|
ha->host_no, __func__));
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
|
|
&ha->reg->ctrl_status);
|
|
readl(&ha->reg->ctrl_status);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
status = QLA_SUCCESS;
|
|
} else {
|
|
printk(KERN_INFO "scsi%ld: %s: Boot firmware failed "
|
|
"- mbox status 0x%x\n", ha->host_no, __func__,
|
|
mbox_status);
|
|
status = QLA_ERROR;
|
|
}
|
|
return status;
|
|
}
|
|
|
|
int ql4xxx_lock_drvr_wait(struct scsi_qla_host *a)
|
|
{
|
|
#define QL4_LOCK_DRVR_WAIT 60
|
|
#define QL4_LOCK_DRVR_SLEEP 1
|
|
|
|
int drvr_wait = QL4_LOCK_DRVR_WAIT;
|
|
while (drvr_wait) {
|
|
if (ql4xxx_lock_drvr(a) == 0) {
|
|
ssleep(QL4_LOCK_DRVR_SLEEP);
|
|
if (drvr_wait) {
|
|
DEBUG2(printk("scsi%ld: %s: Waiting for "
|
|
"Global Init Semaphore(%d)...\n",
|
|
a->host_no,
|
|
__func__, drvr_wait));
|
|
}
|
|
drvr_wait -= QL4_LOCK_DRVR_SLEEP;
|
|
} else {
|
|
DEBUG2(printk("scsi%ld: %s: Global Init Semaphore "
|
|
"acquired\n", a->host_no, __func__));
|
|
return QLA_SUCCESS;
|
|
}
|
|
}
|
|
return QLA_ERROR;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_start_firmware - starts qla4xxx firmware
|
|
* @ha: Pointer to host adapter structure.
|
|
*
|
|
* This routine performs the neccessary steps to start the firmware for
|
|
* the QLA4010 adapter.
|
|
**/
|
|
static int qla4xxx_start_firmware(struct scsi_qla_host *ha)
|
|
{
|
|
unsigned long flags = 0;
|
|
uint32_t mbox_status;
|
|
int status = QLA_ERROR;
|
|
int soft_reset = 1;
|
|
int config_chip = 0;
|
|
|
|
if (is_qla4022(ha) | is_qla4032(ha))
|
|
ql4xxx_set_mac_number(ha);
|
|
|
|
if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
|
|
return QLA_ERROR;
|
|
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
|
|
DEBUG2(printk("scsi%ld: %s: port_ctrl = 0x%08X\n", ha->host_no,
|
|
__func__, readw(isp_port_ctrl(ha))));
|
|
DEBUG(printk("scsi%ld: %s: port_status = 0x%08X\n", ha->host_no,
|
|
__func__, readw(isp_port_status(ha))));
|
|
|
|
/* Is Hardware already initialized? */
|
|
if ((readw(isp_port_ctrl(ha)) & 0x8000) != 0) {
|
|
DEBUG(printk("scsi%ld: %s: Hardware has already been "
|
|
"initialized\n", ha->host_no, __func__));
|
|
|
|
/* Receive firmware boot acknowledgement */
|
|
mbox_status = readw(&ha->reg->mailbox[0]);
|
|
|
|
DEBUG2(printk("scsi%ld: %s: H/W Config complete - mbox[0]= "
|
|
"0x%x\n", ha->host_no, __func__, mbox_status));
|
|
|
|
/* Is firmware already booted? */
|
|
if (mbox_status == 0) {
|
|
/* F/W not running, must be config by net driver */
|
|
config_chip = 1;
|
|
soft_reset = 0;
|
|
} else {
|
|
writel(set_rmask(CSR_SCSI_PROCESSOR_INTR),
|
|
&ha->reg->ctrl_status);
|
|
readl(&ha->reg->ctrl_status);
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
if (qla4xxx_get_firmware_state(ha) == QLA_SUCCESS) {
|
|
DEBUG2(printk("scsi%ld: %s: Get firmware "
|
|
"state -- state = 0x%x\n",
|
|
ha->host_no,
|
|
__func__, ha->firmware_state));
|
|
/* F/W is running */
|
|
if (ha->firmware_state &
|
|
FW_STATE_CONFIG_WAIT) {
|
|
DEBUG2(printk("scsi%ld: %s: Firmware "
|
|
"in known state -- "
|
|
"config and "
|
|
"boot, state = 0x%x\n",
|
|
ha->host_no, __func__,
|
|
ha->firmware_state));
|
|
config_chip = 1;
|
|
soft_reset = 0;
|
|
}
|
|
} else {
|
|
DEBUG2(printk("scsi%ld: %s: Firmware in "
|
|
"unknown state -- resetting,"
|
|
" state = "
|
|
"0x%x\n", ha->host_no, __func__,
|
|
ha->firmware_state));
|
|
}
|
|
spin_lock_irqsave(&ha->hardware_lock, flags);
|
|
}
|
|
} else {
|
|
DEBUG(printk("scsi%ld: %s: H/W initialization hasn't been "
|
|
"started - resetting\n", ha->host_no, __func__));
|
|
}
|
|
spin_unlock_irqrestore(&ha->hardware_lock, flags);
|
|
|
|
DEBUG(printk("scsi%ld: %s: Flags soft_rest=%d, config= %d\n ",
|
|
ha->host_no, __func__, soft_reset, config_chip));
|
|
if (soft_reset) {
|
|
DEBUG(printk("scsi%ld: %s: Issue Soft Reset\n", ha->host_no,
|
|
__func__));
|
|
status = qla4xxx_soft_reset(ha);
|
|
if (status == QLA_ERROR) {
|
|
DEBUG(printk("scsi%d: %s: Soft Reset failed!\n",
|
|
ha->host_no, __func__));
|
|
ql4xxx_unlock_drvr(ha);
|
|
return QLA_ERROR;
|
|
}
|
|
config_chip = 1;
|
|
|
|
/* Reset clears the semaphore, so aquire again */
|
|
if (ql4xxx_lock_drvr_wait(ha) != QLA_SUCCESS)
|
|
return QLA_ERROR;
|
|
}
|
|
|
|
if (config_chip) {
|
|
if ((status = qla4xxx_config_nvram(ha)) == QLA_SUCCESS)
|
|
status = qla4xxx_start_firmware_from_flash(ha);
|
|
}
|
|
|
|
ql4xxx_unlock_drvr(ha);
|
|
if (status == QLA_SUCCESS) {
|
|
qla4xxx_get_fw_version(ha);
|
|
if (test_and_clear_bit(AF_GET_CRASH_RECORD, &ha->flags))
|
|
qla4xxx_get_crash_record(ha);
|
|
} else {
|
|
DEBUG(printk("scsi%ld: %s: Firmware has NOT started\n",
|
|
ha->host_no, __func__));
|
|
}
|
|
return status;
|
|
}
|
|
|
|
|
|
/**
|
|
* qla4xxx_initialize_adapter - initiailizes hba
|
|
* @ha: Pointer to host adapter structure.
|
|
* @renew_ddb_list: Indicates what to do with the adapter's ddb list
|
|
* after adapter recovery has completed.
|
|
* 0=preserve ddb list, 1=destroy and rebuild ddb list
|
|
*
|
|
* This routine parforms all of the steps necessary to initialize the adapter.
|
|
*
|
|
**/
|
|
int qla4xxx_initialize_adapter(struct scsi_qla_host *ha,
|
|
uint8_t renew_ddb_list)
|
|
{
|
|
int status = QLA_ERROR;
|
|
int8_t ip_address[IP_ADDR_LEN] = {0} ;
|
|
|
|
ha->eeprom_cmd_data = 0;
|
|
|
|
qla4x00_pci_config(ha);
|
|
|
|
qla4xxx_disable_intrs(ha);
|
|
|
|
/* Initialize the Host adapter request/response queues and firmware */
|
|
if (qla4xxx_start_firmware(ha) == QLA_ERROR)
|
|
goto exit_init_hba;
|
|
|
|
if (qla4xxx_validate_mac_address(ha) == QLA_ERROR)
|
|
goto exit_init_hba;
|
|
|
|
if (qla4xxx_init_local_data(ha) == QLA_ERROR)
|
|
goto exit_init_hba;
|
|
|
|
status = qla4xxx_init_firmware(ha);
|
|
if (status == QLA_ERROR)
|
|
goto exit_init_hba;
|
|
|
|
/*
|
|
* FW is waiting to get an IP address from DHCP server: Skip building
|
|
* the ddb_list and wait for DHCP lease acquired aen to come in
|
|
* followed by 0x8014 aen" to trigger the tgt discovery process.
|
|
*/
|
|
if (ha->firmware_state & FW_STATE_DHCP_IN_PROGRESS)
|
|
goto exit_init_online;
|
|
|
|
/* Skip device discovery if ip and subnet is zero */
|
|
if (memcmp(ha->ip_address, ip_address, IP_ADDR_LEN) == 0 ||
|
|
memcmp(ha->subnet_mask, ip_address, IP_ADDR_LEN) == 0)
|
|
goto exit_init_online;
|
|
|
|
if (renew_ddb_list == PRESERVE_DDB_LIST) {
|
|
/*
|
|
* We want to preserve lun states (i.e. suspended, etc.)
|
|
* for recovery initiated by the driver. So just update
|
|
* the device states for the existing ddb_list.
|
|
*/
|
|
qla4xxx_reinitialize_ddb_list(ha);
|
|
} else if (renew_ddb_list == REBUILD_DDB_LIST) {
|
|
/*
|
|
* We want to build the ddb_list from scratch during
|
|
* driver initialization and recovery initiated by the
|
|
* INT_HBA_RESET IOCTL.
|
|
*/
|
|
status = qla4xxx_initialize_ddb_list(ha);
|
|
if (status == QLA_ERROR) {
|
|
DEBUG2(printk("%s(%ld) Error occurred during build"
|
|
"ddb list\n", __func__, ha->host_no));
|
|
goto exit_init_hba;
|
|
}
|
|
|
|
}
|
|
if (!ha->tot_ddbs) {
|
|
DEBUG2(printk("scsi%ld: Failed to initialize devices or none "
|
|
"present in Firmware device database\n",
|
|
ha->host_no));
|
|
}
|
|
|
|
exit_init_online:
|
|
set_bit(AF_ONLINE, &ha->flags);
|
|
exit_init_hba:
|
|
return status;
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_add_device_dynamically - ddb addition due to an AEN
|
|
* @ha: Pointer to host adapter structure.
|
|
* @fw_ddb_index: Firmware's device database index
|
|
*
|
|
* This routine processes adds a device as a result of an 8014h AEN.
|
|
**/
|
|
static void qla4xxx_add_device_dynamically(struct scsi_qla_host *ha,
|
|
uint32_t fw_ddb_index)
|
|
{
|
|
struct ddb_entry * ddb_entry;
|
|
uint32_t new_tgt;
|
|
|
|
/* First allocate a device structure */
|
|
ddb_entry = qla4xxx_get_ddb_entry(ha, fw_ddb_index, &new_tgt);
|
|
if (ddb_entry == NULL) {
|
|
DEBUG2(printk(KERN_WARNING
|
|
"scsi%ld: Unable to allocate memory to add "
|
|
"fw_ddb_index %d\n", ha->host_no, fw_ddb_index));
|
|
return;
|
|
}
|
|
|
|
if (!new_tgt && (ddb_entry->fw_ddb_index != fw_ddb_index)) {
|
|
/* Target has been bound to a new fw_ddb_index */
|
|
qla4xxx_free_ddb(ha, ddb_entry);
|
|
ddb_entry = qla4xxx_alloc_ddb(ha, fw_ddb_index);
|
|
if (ddb_entry == NULL) {
|
|
DEBUG2(printk(KERN_WARNING
|
|
"scsi%ld: Unable to allocate memory"
|
|
" to add fw_ddb_index %d\n",
|
|
ha->host_no, fw_ddb_index));
|
|
return;
|
|
}
|
|
}
|
|
if (qla4xxx_update_ddb_entry(ha, ddb_entry, fw_ddb_index) ==
|
|
QLA_ERROR) {
|
|
ha->fw_ddb_index_map[fw_ddb_index] =
|
|
(struct ddb_entry *)INVALID_ENTRY;
|
|
DEBUG2(printk(KERN_WARNING
|
|
"scsi%ld: failed to add new device at index "
|
|
"[%d]\n Unable to retrieve fw ddb entry\n",
|
|
ha->host_no, fw_ddb_index));
|
|
qla4xxx_free_ddb(ha, ddb_entry);
|
|
return;
|
|
}
|
|
|
|
if (qla4xxx_add_sess(ddb_entry)) {
|
|
DEBUG2(printk(KERN_WARNING
|
|
"scsi%ld: failed to add new device at index "
|
|
"[%d]\n Unable to add connection and session\n",
|
|
ha->host_no, fw_ddb_index));
|
|
qla4xxx_free_ddb(ha, ddb_entry);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* qla4xxx_process_ddb_changed - process ddb state change
|
|
* @ha - Pointer to host adapter structure.
|
|
* @fw_ddb_index - Firmware's device database index
|
|
* @state - Device state
|
|
*
|
|
* This routine processes a Decive Database Changed AEN Event.
|
|
**/
|
|
int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha,
|
|
uint32_t fw_ddb_index, uint32_t state)
|
|
{
|
|
struct ddb_entry * ddb_entry;
|
|
uint32_t old_fw_ddb_device_state;
|
|
|
|
/* check for out of range index */
|
|
if (fw_ddb_index >= MAX_DDB_ENTRIES)
|
|
return QLA_ERROR;
|
|
|
|
/* Get the corresponging ddb entry */
|
|
ddb_entry = qla4xxx_lookup_ddb_by_fw_index(ha, fw_ddb_index);
|
|
/* Device does not currently exist in our database. */
|
|
if (ddb_entry == NULL) {
|
|
if (state == DDB_DS_SESSION_ACTIVE)
|
|
qla4xxx_add_device_dynamically(ha, fw_ddb_index);
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
/* Device already exists in our database. */
|
|
old_fw_ddb_device_state = ddb_entry->fw_ddb_device_state;
|
|
DEBUG2(printk("scsi%ld: %s DDB - old state= 0x%x, new state=0x%x for "
|
|
"index [%d]\n", ha->host_no, __func__,
|
|
ddb_entry->fw_ddb_device_state, state, fw_ddb_index));
|
|
if (old_fw_ddb_device_state == state &&
|
|
state == DDB_DS_SESSION_ACTIVE) {
|
|
/* Do nothing, state not changed. */
|
|
return QLA_SUCCESS;
|
|
}
|
|
|
|
ddb_entry->fw_ddb_device_state = state;
|
|
/* Device is back online. */
|
|
if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) {
|
|
atomic_set(&ddb_entry->port_down_timer,
|
|
ha->port_down_retry_count);
|
|
atomic_set(&ddb_entry->state, DDB_STATE_ONLINE);
|
|
atomic_set(&ddb_entry->relogin_retry_count, 0);
|
|
atomic_set(&ddb_entry->relogin_timer, 0);
|
|
clear_bit(DF_RELOGIN, &ddb_entry->flags);
|
|
clear_bit(DF_NO_RELOGIN, &ddb_entry->flags);
|
|
iscsi_if_create_session_done(ddb_entry->conn);
|
|
/*
|
|
* Change the lun state to READY in case the lun TIMEOUT before
|
|
* the device came back.
|
|
*/
|
|
} else {
|
|
/* Device went away, try to relogin. */
|
|
/* Mark device missing */
|
|
if (atomic_read(&ddb_entry->state) == DDB_STATE_ONLINE)
|
|
qla4xxx_mark_device_missing(ha, ddb_entry);
|
|
/*
|
|
* Relogin if device state changed to a not active state.
|
|
* However, do not relogin if this aen is a result of an IOCTL
|
|
* logout (DF_NO_RELOGIN) or if this is a discovered device.
|
|
*/
|
|
if (ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_FAILED &&
|
|
!test_bit(DF_RELOGIN, &ddb_entry->flags) &&
|
|
!test_bit(DF_NO_RELOGIN, &ddb_entry->flags) &&
|
|
!test_bit(DF_ISNS_DISCOVERED, &ddb_entry->flags)) {
|
|
/*
|
|
* This triggers a relogin. After the relogin_timer
|
|
* expires, the relogin gets scheduled. We must wait a
|
|
* minimum amount of time since receiving an 0x8014 AEN
|
|
* with failed device_state or a logout response before
|
|
* we can issue another relogin.
|
|
*/
|
|
/* Firmware padds this timeout: (time2wait +1).
|
|
* Driver retry to login should be longer than F/W.
|
|
* Otherwise F/W will fail
|
|
* set_ddb() mbx cmd with 0x4005 since it still
|
|
* counting down its time2wait.
|
|
*/
|
|
atomic_set(&ddb_entry->relogin_timer, 0);
|
|
atomic_set(&ddb_entry->retry_relogin_timer,
|
|
ddb_entry->default_time2wait + 4);
|
|
}
|
|
}
|
|
|
|
return QLA_SUCCESS;
|
|
}
|
|
|