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coral / linux-mtk / 21caeb57c03381b5274d3466564d657f7d356038 / . / drivers / scsi / qla2xxx / qla_nx2.c
blob: 3a2b0282df149531789bddd8cfe4d7ec69ebfbf3 [file] [log] [blame]
/*
* QLogic Fibre Channel HBA Driver
* Copyright (c) 2003-2014 QLogic Corporation
*
* See LICENSE.qla2xxx for copyright and licensing details.
*/
#include <linux/vmalloc.h>
#include <linux/delay.h>
#include "qla_def.h"
#include "qla_gbl.h"
#define TIMEOUT_100_MS 100
static const uint32_t qla8044_reg_tbl[] = {
QLA8044_PEG_HALT_STATUS1,
QLA8044_PEG_HALT_STATUS2,
QLA8044_PEG_ALIVE_COUNTER,
QLA8044_CRB_DRV_ACTIVE,
QLA8044_CRB_DEV_STATE,
QLA8044_CRB_DRV_STATE,
QLA8044_CRB_DRV_SCRATCH,
QLA8044_CRB_DEV_PART_INFO1,
QLA8044_CRB_IDC_VER_MAJOR,
QLA8044_FW_VER_MAJOR,
QLA8044_FW_VER_MINOR,
QLA8044_FW_VER_SUB,
QLA8044_CMDPEG_STATE,
QLA8044_ASIC_TEMP,
};
/* 8044 Flash Read/Write functions */
uint32_t
qla8044_rd_reg(struct qla_hw_data *ha, ulong addr)
{
return readl((void __iomem *) (ha->nx_pcibase + addr));
}
void
qla8044_wr_reg(struct qla_hw_data *ha, ulong addr, uint32_t val)
{
writel(val, (void __iomem *)((ha)->nx_pcibase + addr));
}
int
qla8044_rd_direct(struct scsi_qla_host *vha,
const uint32_t crb_reg)
{
struct qla_hw_data *ha = vha->hw;
if (crb_reg < CRB_REG_INDEX_MAX)
return qla8044_rd_reg(ha, qla8044_reg_tbl[crb_reg]);
else
return QLA_FUNCTION_FAILED;
}
void
qla8044_wr_direct(struct scsi_qla_host *vha,
const uint32_t crb_reg,
const uint32_t value)
{
struct qla_hw_data *ha = vha->hw;
if (crb_reg < CRB_REG_INDEX_MAX)
qla8044_wr_reg(ha, qla8044_reg_tbl[crb_reg], value);
}
static int
qla8044_set_win_base(scsi_qla_host_t *vha, uint32_t addr)
{
uint32_t val;
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
qla8044_wr_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum), addr);
val = qla8044_rd_reg(ha, QLA8044_CRB_WIN_FUNC(ha->portnum));
if (val != addr) {
ql_log(ql_log_warn, vha, 0xb087,
"%s: Failed to set register window : "
"addr written 0x%x, read 0x%x!\n",
__func__, addr, val);
ret_val = QLA_FUNCTION_FAILED;
}
return ret_val;
}
static int
qla8044_rd_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t *data)
{
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
ret_val = qla8044_set_win_base(vha, addr);
if (!ret_val)
*data = qla8044_rd_reg(ha, QLA8044_WILDCARD);
else
ql_log(ql_log_warn, vha, 0xb088,
"%s: failed read of addr 0x%x!\n", __func__, addr);
return ret_val;
}
static int
qla8044_wr_reg_indirect(scsi_qla_host_t *vha, uint32_t addr, uint32_t data)
{
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
ret_val = qla8044_set_win_base(vha, addr);
if (!ret_val)
qla8044_wr_reg(ha, QLA8044_WILDCARD, data);
else
ql_log(ql_log_warn, vha, 0xb089,
"%s: failed wrt to addr 0x%x, data 0x%x\n",
__func__, addr, data);
return ret_val;
}
/*
* qla8044_read_write_crb_reg - Read from raddr and write value to waddr.
*
* @ha : Pointer to adapter structure
* @raddr : CRB address to read from
* @waddr : CRB address to write to
*
*/
static void
qla8044_read_write_crb_reg(struct scsi_qla_host *vha,
uint32_t raddr, uint32_t waddr)
{
uint32_t value;
qla8044_rd_reg_indirect(vha, raddr, &value);
qla8044_wr_reg_indirect(vha, waddr, value);
}
static int
qla8044_poll_wait_for_ready(struct scsi_qla_host *vha, uint32_t addr1,
uint32_t mask)
{
unsigned long timeout;
uint32_t temp;
/* jiffies after 100ms */
timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
do {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
if (time_after_eq(jiffies, timeout)) {
ql_log(ql_log_warn, vha, 0xb151,
"Error in processing rdmdio entry\n");
return -1;
}
} while (1);
return 0;
}
static uint32_t
qla8044_ipmdio_rd_reg(struct scsi_qla_host *vha,
uint32_t addr1, uint32_t addr3, uint32_t mask, uint32_t addr)
{
uint32_t temp;
int ret = 0;
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return -1;
temp = (0x40000000 | addr);
qla8044_wr_reg_indirect(vha, addr1, temp);
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return 0;
qla8044_rd_reg_indirect(vha, addr3, &ret);
return ret;
}
static int
qla8044_poll_wait_ipmdio_bus_idle(struct scsi_qla_host *vha,
uint32_t addr1, uint32_t addr2, uint32_t addr3, uint32_t mask)
{
unsigned long timeout;
uint32_t temp;
/* jiffies after 100 msecs */
timeout = jiffies + msecs_to_jiffies(TIMEOUT_100_MS);
do {
temp = qla8044_ipmdio_rd_reg(vha, addr1, addr3, mask, addr2);
if ((temp & 0x1) != 1)
break;
if (time_after_eq(jiffies, timeout)) {
ql_log(ql_log_warn, vha, 0xb152,
"Error in processing mdiobus idle\n");
return -1;
}
} while (1);
return 0;
}
static int
qla8044_ipmdio_wr_reg(struct scsi_qla_host *vha, uint32_t addr1,
uint32_t addr3, uint32_t mask, uint32_t addr, uint32_t value)
{
int ret = 0;
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return -1;
qla8044_wr_reg_indirect(vha, addr3, value);
qla8044_wr_reg_indirect(vha, addr1, addr);
ret = qla8044_poll_wait_for_ready(vha, addr1, mask);
if (ret == -1)
return -1;
return 0;
}
/*
* qla8044_rmw_crb_reg - Read value from raddr, AND with test_mask,
* Shift Left,Right/OR/XOR with values RMW header and write value to waddr.
*
* @vha : Pointer to adapter structure
* @raddr : CRB address to read from
* @waddr : CRB address to write to
* @p_rmw_hdr : header with shift/or/xor values.
*
*/
static void
qla8044_rmw_crb_reg(struct scsi_qla_host *vha,
uint32_t raddr, uint32_t waddr, struct qla8044_rmw *p_rmw_hdr)
{
uint32_t value;
if (p_rmw_hdr->index_a)
value = vha->reset_tmplt.array[p_rmw_hdr->index_a];
else
qla8044_rd_reg_indirect(vha, raddr, &value);
value &= p_rmw_hdr->test_mask;
value <<= p_rmw_hdr->shl;
value >>= p_rmw_hdr->shr;
value |= p_rmw_hdr->or_value;
value ^= p_rmw_hdr->xor_value;
qla8044_wr_reg_indirect(vha, waddr, value);
return;
}
static inline void
qla8044_set_qsnt_ready(struct scsi_qla_host *vha)
{
uint32_t qsnt_state;
struct qla_hw_data *ha = vha->hw;
qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
qsnt_state |= (1 << ha->portnum);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
ql_log(ql_log_info, vha, 0xb08e, "%s(%ld): qsnt_state: 0x%08x\n",
__func__, vha->host_no, qsnt_state);
}
void
qla8044_clear_qsnt_ready(struct scsi_qla_host *vha)
{
uint32_t qsnt_state;
struct qla_hw_data *ha = vha->hw;
qsnt_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
qsnt_state &= ~(1 << ha->portnum);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, qsnt_state);
ql_log(ql_log_info, vha, 0xb08f, "%s(%ld): qsnt_state: 0x%08x\n",
__func__, vha->host_no, qsnt_state);
}
/**
* qla8044_lock_recovery - Recovers the idc_lock.
* @vha : Pointer to adapter structure
*
* Lock Recovery Register
* 5-2 Lock recovery owner: Function ID of driver doing lock recovery,
* valid if bits 1..0 are set by driver doing lock recovery.
* 1-0 1 - Driver intends to force unlock the IDC lock.
* 2 - Driver is moving forward to unlock the IDC lock. Driver clears
* this field after force unlocking the IDC lock.
*
* Lock Recovery process
* a. Read the IDC_LOCK_RECOVERY register. If the value in bits 1..0 is
* greater than 0, then wait for the other driver to unlock otherwise
* move to the next step.
* b. Indicate intent to force-unlock by writing 1h to the IDC_LOCK_RECOVERY
* register bits 1..0 and also set the function# in bits 5..2.
* c. Read the IDC_LOCK_RECOVERY register again after a delay of 200ms.
* Wait for the other driver to perform lock recovery if the function
* number in bits 5..2 has changed, otherwise move to the next step.
* d. Write a value of 2h to the IDC_LOCK_RECOVERY register bits 1..0
* leaving your function# in bits 5..2.
* e. Force unlock using the DRIVER_UNLOCK register and immediately clear
* the IDC_LOCK_RECOVERY bits 5..0 by writing 0.
**/
static int
qla8044_lock_recovery(struct scsi_qla_host *vha)
{
uint32_t lock = 0, lockid;
struct qla_hw_data *ha = vha->hw;
lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
/* Check for other Recovery in progress, go wait */
if ((lockid & IDC_LOCK_RECOVERY_STATE_MASK) != 0)
return QLA_FUNCTION_FAILED;
/* Intent to Recover */
qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
(ha->portnum <<
IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) | INTENT_TO_RECOVER);
msleep(200);
/* Check Intent to Recover is advertised */
lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCKRECOVERY);
if ((lockid & IDC_LOCK_RECOVERY_OWNER_MASK) != (ha->portnum <<
IDC_LOCK_RECOVERY_STATE_SHIFT_BITS))
return QLA_FUNCTION_FAILED;
ql_dbg(ql_dbg_p3p, vha, 0xb08B, "%s:%d: IDC Lock recovery initiated\n"
, __func__, ha->portnum);
/* Proceed to Recover */
qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY,
(ha->portnum << IDC_LOCK_RECOVERY_STATE_SHIFT_BITS) |
PROCEED_TO_RECOVER);
/* Force Unlock() */
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, 0xFF);
qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
/* Clear bits 0-5 in IDC_RECOVERY register*/
qla8044_wr_reg(ha, QLA8044_DRV_LOCKRECOVERY, 0);
/* Get lock() */
lock = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
if (lock) {
lockid = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
lockid = ((lockid + (1 << 8)) & ~0xFF) | ha->portnum;
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lockid);
return QLA_SUCCESS;
} else
return QLA_FUNCTION_FAILED;
}
int
qla8044_idc_lock(struct qla_hw_data *ha)
{
uint32_t ret_val = QLA_SUCCESS, timeout = 0, status = 0;
uint32_t lock_id, lock_cnt, func_num, tmo_owner = 0, first_owner = 0;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
while (status == 0) {
/* acquire semaphore5 from PCI HW block */
status = qla8044_rd_reg(ha, QLA8044_DRV_LOCK);
if (status) {
/* Increment Counter (8-31) and update func_num (0-7) on
* getting a successful lock */
lock_id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
lock_id = ((lock_id + (1 << 8)) & ~0xFF) | ha->portnum;
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, lock_id);
break;
}
if (timeout == 0)
first_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
if (++timeout >=
(QLA8044_DRV_LOCK_TIMEOUT / QLA8044_DRV_LOCK_MSLEEP)) {
tmo_owner = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
func_num = tmo_owner & 0xFF;
lock_cnt = tmo_owner >> 8;
ql_log(ql_log_warn, vha, 0xb114,
"%s: Lock by func %d failed after 2s, lock held "
"by func %d, lock count %d, first_owner %d\n",
__func__, ha->portnum, func_num, lock_cnt,
(first_owner & 0xFF));
if (first_owner != tmo_owner) {
/* Some other driver got lock,
* OR same driver got lock again (counter
* value changed), when we were waiting for
* lock. Retry for another 2 sec */
ql_dbg(ql_dbg_p3p, vha, 0xb115,
"%s: %d: IDC lock failed\n",
__func__, ha->portnum);
timeout = 0;
} else {
/* Same driver holding lock > 2sec.
* Force Recovery */
if (qla8044_lock_recovery(vha) == QLA_SUCCESS) {
/* Recovered and got lock */
ret_val = QLA_SUCCESS;
ql_dbg(ql_dbg_p3p, vha, 0xb116,
"%s:IDC lock Recovery by %d"
"successful...\n", __func__,
ha->portnum);
}
/* Recovery Failed, some other function
* has the lock, wait for 2secs
* and retry
*/
ql_dbg(ql_dbg_p3p, vha, 0xb08a,
"%s: IDC lock Recovery by %d "
"failed, Retrying timeout\n", __func__,
ha->portnum);
timeout = 0;
}
}
msleep(QLA8044_DRV_LOCK_MSLEEP);
}
return ret_val;
}
void
qla8044_idc_unlock(struct qla_hw_data *ha)
{
int id;
scsi_qla_host_t *vha = pci_get_drvdata(ha->pdev);
id = qla8044_rd_reg(ha, QLA8044_DRV_LOCK_ID);
if ((id & 0xFF) != ha->portnum) {
ql_log(ql_log_warn, vha, 0xb118,
"%s: IDC Unlock by %d failed, lock owner is %d!\n",
__func__, ha->portnum, (id & 0xFF));
return;
}
/* Keep lock counter value, update the ha->func_num to 0xFF */
qla8044_wr_reg(ha, QLA8044_DRV_LOCK_ID, (id | 0xFF));
qla8044_rd_reg(ha, QLA8044_DRV_UNLOCK);
}
/* 8044 Flash Lock/Unlock functions */
static int
qla8044_flash_lock(scsi_qla_host_t *vha)
{
int lock_owner;
int timeout = 0;
uint32_t lock_status = 0;
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
while (lock_status == 0) {
lock_status = qla8044_rd_reg(ha, QLA8044_FLASH_LOCK);
if (lock_status)
break;
if (++timeout >= QLA8044_FLASH_LOCK_TIMEOUT / 20) {
lock_owner = qla8044_rd_reg(ha,
QLA8044_FLASH_LOCK_ID);
ql_log(ql_log_warn, vha, 0xb113,
"%s: Simultaneous flash access by following ports, active port = %d: accessing port = %d",
__func__, ha->portnum, lock_owner);
ret_val = QLA_FUNCTION_FAILED;
break;
}
msleep(20);
}
qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, ha->portnum);
return ret_val;
}
static void
qla8044_flash_unlock(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
/* Reading FLASH_UNLOCK register unlocks the Flash */
qla8044_wr_reg(ha, QLA8044_FLASH_LOCK_ID, 0xFF);
qla8044_rd_reg(ha, QLA8044_FLASH_UNLOCK);
}
static
void qla8044_flash_lock_recovery(struct scsi_qla_host *vha)
{
if (qla8044_flash_lock(vha)) {
/* Someone else is holding the lock. */
ql_log(ql_log_warn, vha, 0xb120, "Resetting flash_lock\n");
}
/*
* Either we got the lock, or someone
* else died while holding it.
* In either case, unlock.
*/
qla8044_flash_unlock(vha);
}
/*
* Address and length are byte address
*/
static int
qla8044_read_flash_data(scsi_qla_host_t *vha, uint8_t *p_data,
uint32_t flash_addr, int u32_word_count)
{
int i, ret_val = QLA_SUCCESS;
uint32_t u32_word;
if (qla8044_flash_lock(vha) != QLA_SUCCESS) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_lock_error;
}
if (flash_addr & 0x03) {
ql_log(ql_log_warn, vha, 0xb117,
"%s: Illegal addr = 0x%x\n", __func__, flash_addr);
ret_val = QLA_FUNCTION_FAILED;
goto exit_flash_read;
}
for (i = 0; i < u32_word_count; i++) {
if (qla8044_wr_reg_indirect(vha, QLA8044_FLASH_DIRECT_WINDOW,
(flash_addr & 0xFFFF0000))) {
ql_log(ql_log_warn, vha, 0xb119,
"%s: failed to write addr 0x%x to "
"FLASH_DIRECT_WINDOW\n! ",
__func__, flash_addr);
ret_val = QLA_FUNCTION_FAILED;
goto exit_flash_read;
}
ret_val = qla8044_rd_reg_indirect(vha,
QLA8044_FLASH_DIRECT_DATA(flash_addr),
&u32_word);
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb08c,
"%s: failed to read addr 0x%x!\n",
__func__, flash_addr);
goto exit_flash_read;
}
*(uint32_t *)p_data = u32_word;
p_data = p_data + 4;
flash_addr = flash_addr + 4;
}
exit_flash_read:
qla8044_flash_unlock(vha);
exit_lock_error:
return ret_val;
}
/*
* Address and length are byte address
*/
uint8_t *
qla8044_read_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
uint32_t offset, uint32_t length)
{
scsi_block_requests(vha->host);
if (qla8044_read_flash_data(vha, (uint8_t *)buf, offset, length / 4)
!= QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb08d,
"%s: Failed to read from flash\n",
__func__);
}
scsi_unblock_requests(vha->host);
return buf;
}
static inline int
qla8044_need_reset(struct scsi_qla_host *vha)
{
uint32_t drv_state, drv_active;
int rval;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
rval = drv_state & (1 << ha->portnum);
if (ha->flags.eeh_busy && drv_active)
rval = 1;
return rval;
}
/*
* qla8044_write_list - Write the value (p_entry->arg2) to address specified
* by p_entry->arg1 for all entries in header with delay of p_hdr->delay between
* entries.
*
* @vha : Pointer to adapter structure
* @p_hdr : reset_entry header for WRITE_LIST opcode.
*
*/
static void
qla8044_write_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
struct qla8044_entry *p_entry;
uint32_t i;
p_entry = (struct qla8044_entry *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_wr_reg_indirect(vha, p_entry->arg1, p_entry->arg2);
if (p_hdr->delay)
udelay((uint32_t)(p_hdr->delay));
}
}
/*
* qla8044_read_write_list - Read from address specified by p_entry->arg1,
* write value read to address specified by p_entry->arg2, for all entries in
* header with delay of p_hdr->delay between entries.
*
* @vha : Pointer to adapter structure
* @p_hdr : reset_entry header for READ_WRITE_LIST opcode.
*
*/
static void
qla8044_read_write_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
struct qla8044_entry *p_entry;
uint32_t i;
p_entry = (struct qla8044_entry *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_read_write_crb_reg(vha, p_entry->arg1,
p_entry->arg2);
if (p_hdr->delay)
udelay((uint32_t)(p_hdr->delay));
}
}
/*
* qla8044_poll_reg - Poll the given CRB addr for duration msecs till
* value read ANDed with test_mask is equal to test_result.
*
* @ha : Pointer to adapter structure
* @addr : CRB register address
* @duration : Poll for total of "duration" msecs
* @test_mask : Mask value read with "test_mask"
* @test_result : Compare (value&test_mask) with test_result.
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_poll_reg(struct scsi_qla_host *vha, uint32_t addr,
int duration, uint32_t test_mask, uint32_t test_result)
{
uint32_t value;
int timeout_error;
uint8_t retries;
int ret_val = QLA_SUCCESS;
ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
if (ret_val == QLA_FUNCTION_FAILED) {
timeout_error = 1;
goto exit_poll_reg;
}
/* poll every 1/10 of the total duration */
retries = duration/10;
do {
if ((value & test_mask) != test_result) {
timeout_error = 1;
msleep(duration/10);
ret_val = qla8044_rd_reg_indirect(vha, addr, &value);
if (ret_val == QLA_FUNCTION_FAILED) {
timeout_error = 1;
goto exit_poll_reg;
}
} else {
timeout_error = 0;
break;
}
} while (retries--);
exit_poll_reg:
if (timeout_error) {
vha->reset_tmplt.seq_error++;
ql_log(ql_log_fatal, vha, 0xb090,
"%s: Poll Failed: 0x%08x 0x%08x 0x%08x\n",
__func__, value, test_mask, test_result);
}
return timeout_error;
}
/*
* qla8044_poll_list - For all entries in the POLL_LIST header, poll read CRB
* register specified by p_entry->arg1 and compare (value AND test_mask) with
* test_result to validate it. Wait for p_hdr->delay between processing entries.
*
* @ha : Pointer to adapter structure
* @p_hdr : reset_entry header for POLL_LIST opcode.
*
*/
static void
qla8044_poll_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
long delay;
struct qla8044_entry *p_entry;
struct qla8044_poll *p_poll;
uint32_t i;
uint32_t value;
p_poll = (struct qla8044_poll *)
((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
/* Entries start after 8 byte qla8044_poll, poll header contains
* the test_mask, test_value.
*/
p_entry = (struct qla8044_entry *)((char *)p_poll +
sizeof(struct qla8044_poll));
delay = (long)p_hdr->delay;
if (!delay) {
for (i = 0; i < p_hdr->count; i++, p_entry++)
qla8044_poll_reg(vha, p_entry->arg1,
delay, p_poll->test_mask, p_poll->test_value);
} else {
for (i = 0; i < p_hdr->count; i++, p_entry++) {
if (delay) {
if (qla8044_poll_reg(vha,
p_entry->arg1, delay,
p_poll->test_mask,
p_poll->test_value)) {
/*If
* (data_read&test_mask != test_value)
* read TIMEOUT_ADDR (arg1) and
* ADDR (arg2) registers
*/
qla8044_rd_reg_indirect(vha,
p_entry->arg1, &value);
qla8044_rd_reg_indirect(vha,
p_entry->arg2, &value);
}
}
}
}
}
/*
* qla8044_poll_write_list - Write dr_value, ar_value to dr_addr/ar_addr,
* read ar_addr, if (value& test_mask != test_mask) re-read till timeout
* expires.
*
* @vha : Pointer to adapter structure
* @p_hdr : reset entry header for POLL_WRITE_LIST opcode.
*
*/
static void
qla8044_poll_write_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
long delay;
struct qla8044_quad_entry *p_entry;
struct qla8044_poll *p_poll;
uint32_t i;
p_poll = (struct qla8044_poll *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
p_entry = (struct qla8044_quad_entry *)((char *)p_poll +
sizeof(struct qla8044_poll));
delay = (long)p_hdr->delay;
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_wr_reg_indirect(vha,
p_entry->dr_addr, p_entry->dr_value);
qla8044_wr_reg_indirect(vha,
p_entry->ar_addr, p_entry->ar_value);
if (delay) {
if (qla8044_poll_reg(vha,
p_entry->ar_addr, delay,
p_poll->test_mask,
p_poll->test_value)) {
ql_dbg(ql_dbg_p3p, vha, 0xb091,
"%s: Timeout Error: poll list, ",
__func__);
ql_dbg(ql_dbg_p3p, vha, 0xb092,
"item_num %d, entry_num %d\n", i,
vha->reset_tmplt.seq_index);
}
}
}
}
/*
* qla8044_read_modify_write - Read value from p_entry->arg1, modify the
* value, write value to p_entry->arg2. Process entries with p_hdr->delay
* between entries.
*
* @vha : Pointer to adapter structure
* @p_hdr : header with shift/or/xor values.
*
*/
static void
qla8044_read_modify_write(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
struct qla8044_entry *p_entry;
struct qla8044_rmw *p_rmw_hdr;
uint32_t i;
p_rmw_hdr = (struct qla8044_rmw *)((char *)p_hdr +
sizeof(struct qla8044_reset_entry_hdr));
p_entry = (struct qla8044_entry *)((char *)p_rmw_hdr +
sizeof(struct qla8044_rmw));
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_rmw_crb_reg(vha, p_entry->arg1,
p_entry->arg2, p_rmw_hdr);
if (p_hdr->delay)
udelay((uint32_t)(p_hdr->delay));
}
}
/*
* qla8044_pause - Wait for p_hdr->delay msecs, called between processing
* two entries of a sequence.
*
* @vha : Pointer to adapter structure
* @p_hdr : Common reset entry header.
*
*/
static
void qla8044_pause(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
if (p_hdr->delay)
mdelay((uint32_t)((long)p_hdr->delay));
}
/*
* qla8044_template_end - Indicates end of reset sequence processing.
*
* @vha : Pointer to adapter structure
* @p_hdr : Common reset entry header.
*
*/
static void
qla8044_template_end(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
vha->reset_tmplt.template_end = 1;
if (vha->reset_tmplt.seq_error == 0) {
ql_dbg(ql_dbg_p3p, vha, 0xb093,
"%s: Reset sequence completed SUCCESSFULLY.\n", __func__);
} else {
ql_log(ql_log_fatal, vha, 0xb094,
"%s: Reset sequence completed with some timeout "
"errors.\n", __func__);
}
}
/*
* qla8044_poll_read_list - Write ar_value to ar_addr register, read ar_addr,
* if (value & test_mask != test_value) re-read till timeout value expires,
* read dr_addr register and assign to reset_tmplt.array.
*
* @vha : Pointer to adapter structure
* @p_hdr : Common reset entry header.
*
*/
static void
qla8044_poll_read_list(struct scsi_qla_host *vha,
struct qla8044_reset_entry_hdr *p_hdr)
{
long delay;
int index;
struct qla8044_quad_entry *p_entry;
struct qla8044_poll *p_poll;
uint32_t i;
uint32_t value;
p_poll = (struct qla8044_poll *)
((char *)p_hdr + sizeof(struct qla8044_reset_entry_hdr));
p_entry = (struct qla8044_quad_entry *)
((char *)p_poll + sizeof(struct qla8044_poll));
delay = (long)p_hdr->delay;
for (i = 0; i < p_hdr->count; i++, p_entry++) {
qla8044_wr_reg_indirect(vha, p_entry->ar_addr,
p_entry->ar_value);
if (delay) {
if (qla8044_poll_reg(vha, p_entry->ar_addr, delay,
p_poll->test_mask, p_poll->test_value)) {
ql_dbg(ql_dbg_p3p, vha, 0xb095,
"%s: Timeout Error: poll "
"list, ", __func__);
ql_dbg(ql_dbg_p3p, vha, 0xb096,
"Item_num %d, "
"entry_num %d\n", i,
vha->reset_tmplt.seq_index);
} else {
index = vha->reset_tmplt.array_index;
qla8044_rd_reg_indirect(vha,
p_entry->dr_addr, &value);
vha->reset_tmplt.array[index++] = value;
if (index == QLA8044_MAX_RESET_SEQ_ENTRIES)
vha->reset_tmplt.array_index = 1;
}
}
}
}
/*
* qla8031_process_reset_template - Process all entries in reset template
* till entry with SEQ_END opcode, which indicates end of the reset template
* processing. Each entry has a Reset Entry header, entry opcode/command, with
* size of the entry, number of entries in sub-sequence and delay in microsecs
* or timeout in millisecs.
*
* @ha : Pointer to adapter structure
* @p_buff : Common reset entry header.
*
*/
static void
qla8044_process_reset_template(struct scsi_qla_host *vha,
char *p_buff)
{
int index, entries;
struct qla8044_reset_entry_hdr *p_hdr;
char *p_entry = p_buff;
vha->reset_tmplt.seq_end = 0;
vha->reset_tmplt.template_end = 0;
entries = vha->reset_tmplt.hdr->entries;
index = vha->reset_tmplt.seq_index;
for (; (!vha->reset_tmplt.seq_end) && (index < entries); index++) {
p_hdr = (struct qla8044_reset_entry_hdr *)p_entry;
switch (p_hdr->cmd) {
case OPCODE_NOP:
break;
case OPCODE_WRITE_LIST:
qla8044_write_list(vha, p_hdr);
break;
case OPCODE_READ_WRITE_LIST:
qla8044_read_write_list(vha, p_hdr);
break;
case OPCODE_POLL_LIST:
qla8044_poll_list(vha, p_hdr);
break;
case OPCODE_POLL_WRITE_LIST:
qla8044_poll_write_list(vha, p_hdr);
break;
case OPCODE_READ_MODIFY_WRITE:
qla8044_read_modify_write(vha, p_hdr);
break;
case OPCODE_SEQ_PAUSE:
qla8044_pause(vha, p_hdr);
break;
case OPCODE_SEQ_END:
vha->reset_tmplt.seq_end = 1;
break;
case OPCODE_TMPL_END:
qla8044_template_end(vha, p_hdr);
break;
case OPCODE_POLL_READ_LIST:
qla8044_poll_read_list(vha, p_hdr);
break;
default:
ql_log(ql_log_fatal, vha, 0xb097,
"%s: Unknown command ==> 0x%04x on "
"entry = %d\n", __func__, p_hdr->cmd, index);
break;
}
/*
*Set pointer to next entry in the sequence.
*/
p_entry += p_hdr->size;
}
vha->reset_tmplt.seq_index = index;
}
static void
qla8044_process_init_seq(struct scsi_qla_host *vha)
{
qla8044_process_reset_template(vha,
vha->reset_tmplt.init_offset);
if (vha->reset_tmplt.seq_end != 1)
ql_log(ql_log_fatal, vha, 0xb098,
"%s: Abrupt INIT Sub-Sequence end.\n",
__func__);
}
static void
qla8044_process_stop_seq(struct scsi_qla_host *vha)
{
vha->reset_tmplt.seq_index = 0;
qla8044_process_reset_template(vha, vha->reset_tmplt.stop_offset);
if (vha->reset_tmplt.seq_end != 1)
ql_log(ql_log_fatal, vha, 0xb099,
"%s: Abrupt STOP Sub-Sequence end.\n", __func__);
}
static void
qla8044_process_start_seq(struct scsi_qla_host *vha)
{
qla8044_process_reset_template(vha, vha->reset_tmplt.start_offset);
if (vha->reset_tmplt.template_end != 1)
ql_log(ql_log_fatal, vha, 0xb09a,
"%s: Abrupt START Sub-Sequence end.\n",
__func__);
}
static int
qla8044_lockless_flash_read_u32(struct scsi_qla_host *vha,
uint32_t flash_addr, uint8_t *p_data, int u32_word_count)
{
uint32_t i;
uint32_t u32_word;
uint32_t flash_offset;
uint32_t addr = flash_addr;
int ret_val = QLA_SUCCESS;
flash_offset = addr & (QLA8044_FLASH_SECTOR_SIZE - 1);
if (addr & 0x3) {
ql_log(ql_log_fatal, vha, 0xb09b, "%s: Illegal addr = 0x%x\n",
__func__, addr);
ret_val = QLA_FUNCTION_FAILED;
goto exit_lockless_read;
}
ret_val = qla8044_wr_reg_indirect(vha,
QLA8044_FLASH_DIRECT_WINDOW, (addr));
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb09c,
"%s: failed to write addr 0x%x to FLASH_DIRECT_WINDOW!\n",
__func__, addr);
goto exit_lockless_read;
}
/* Check if data is spread across multiple sectors */
if ((flash_offset + (u32_word_count * sizeof(uint32_t))) >
(QLA8044_FLASH_SECTOR_SIZE - 1)) {
/* Multi sector read */
for (i = 0; i < u32_word_count; i++) {
ret_val = qla8044_rd_reg_indirect(vha,
QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb09d,
"%s: failed to read addr 0x%x!\n",
__func__, addr);
goto exit_lockless_read;
}
*(uint32_t *)p_data = u32_word;
p_data = p_data + 4;
addr = addr + 4;
flash_offset = flash_offset + 4;
if (flash_offset > (QLA8044_FLASH_SECTOR_SIZE - 1)) {
/* This write is needed once for each sector */
ret_val = qla8044_wr_reg_indirect(vha,
QLA8044_FLASH_DIRECT_WINDOW, (addr));
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb09f,
"%s: failed to write addr "
"0x%x to FLASH_DIRECT_WINDOW!\n",
__func__, addr);
goto exit_lockless_read;
}
flash_offset = 0;
}
}
} else {
/* Single sector read */
for (i = 0; i < u32_word_count; i++) {
ret_val = qla8044_rd_reg_indirect(vha,
QLA8044_FLASH_DIRECT_DATA(addr), &u32_word);
if (ret_val != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb0a0,
"%s: failed to read addr 0x%x!\n",
__func__, addr);
goto exit_lockless_read;
}
*(uint32_t *)p_data = u32_word;
p_data = p_data + 4;
addr = addr + 4;
}
}
exit_lockless_read:
return ret_val;
}
/*
* qla8044_ms_mem_write_128b - Writes data to MS/off-chip memory
*
* @vha : Pointer to adapter structure
* addr : Flash address to write to
* data : Data to be written
* count : word_count to be written
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_ms_mem_write_128b(struct scsi_qla_host *vha,
uint64_t addr, uint32_t *data, uint32_t count)
{
int i, j, ret_val = QLA_SUCCESS;
uint32_t agt_ctrl;
unsigned long flags;
struct qla_hw_data *ha = vha->hw;
/* Only 128-bit aligned access */
if (addr & 0xF) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write;
}
write_lock_irqsave(&ha->hw_lock, flags);
/* Write address */
ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, 0);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a1,
"%s: write to AGT_ADDR_HI failed!\n", __func__);
goto exit_ms_mem_write_unlock;
}
for (i = 0; i < count; i++, addr += 16) {
if (!((addr_in_range(addr, QLA8044_ADDR_QDR_NET,
QLA8044_ADDR_QDR_NET_MAX)) ||
(addr_in_range(addr, QLA8044_ADDR_DDR_NET,
QLA8044_ADDR_DDR_NET_MAX)))) {
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write_unlock;
}
ret_val = qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_ADDR_LO, addr);
/* Write data */
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_LO, *data++);
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_HI, *data++);
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_ULO, *data++);
ret_val += qla8044_wr_reg_indirect(vha,
MD_MIU_TEST_AGT_WRDATA_UHI, *data++);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a2,
"%s: write to AGT_WRDATA failed!\n",
__func__);
goto exit_ms_mem_write_unlock;
}
/* Check write status */
ret_val = qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
MIU_TA_CTL_WRITE_ENABLE);
ret_val += qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
MIU_TA_CTL_WRITE_START);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a3,
"%s: write to AGT_CTRL failed!\n", __func__);
goto exit_ms_mem_write_unlock;
}
for (j = 0; j < MAX_CTL_CHECK; j++) {
ret_val = qla8044_rd_reg_indirect(vha,
MD_MIU_TEST_AGT_CTRL, &agt_ctrl);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a4,
"%s: failed to read "
"MD_MIU_TEST_AGT_CTRL!\n", __func__);
goto exit_ms_mem_write_unlock;
}
if ((agt_ctrl & MIU_TA_CTL_BUSY) == 0)
break;
}
/* Status check failed */
if (j >= MAX_CTL_CHECK) {
ql_log(ql_log_fatal, vha, 0xb0a5,
"%s: MS memory write failed!\n",
__func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_ms_mem_write_unlock;
}
}
exit_ms_mem_write_unlock:
write_unlock_irqrestore(&ha->hw_lock, flags);
exit_ms_mem_write:
return ret_val;
}
static int
qla8044_copy_bootloader(struct scsi_qla_host *vha)
{
uint8_t *p_cache;
uint32_t src, count, size;
uint64_t dest;
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
src = QLA8044_BOOTLOADER_FLASH_ADDR;
dest = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_ADDR);
size = qla8044_rd_reg(ha, QLA8044_BOOTLOADER_SIZE);
/* 128 bit alignment check */
if (size & 0xF)
size = (size + 16) & ~0xF;
/* 16 byte count */
count = size/16;
p_cache = vmalloc(size);
if (p_cache == NULL) {
ql_log(ql_log_fatal, vha, 0xb0a6,
"%s: Failed to allocate memory for "
"boot loader cache\n", __func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_copy_bootloader;
}
ret_val = qla8044_lockless_flash_read_u32(vha, src,
p_cache, size/sizeof(uint32_t));
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a7,
"%s: Error reading F/W from flash!!!\n", __func__);
goto exit_copy_error;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0a8, "%s: Read F/W from flash!\n",
__func__);
/* 128 bit/16 byte write to MS memory */
ret_val = qla8044_ms_mem_write_128b(vha, dest,
(uint32_t *)p_cache, count);
if (ret_val == QLA_FUNCTION_FAILED) {
ql_log(ql_log_fatal, vha, 0xb0a9,
"%s: Error writing F/W to MS !!!\n", __func__);
goto exit_copy_error;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0aa,
"%s: Wrote F/W (size %d) to MS !!!\n",
__func__, size);
exit_copy_error:
vfree(p_cache);
exit_copy_bootloader:
return ret_val;
}
static int
qla8044_restart(struct scsi_qla_host *vha)
{
int ret_val = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
qla8044_process_stop_seq(vha);
/* Collect minidump */
if (ql2xmdenable)
qla8044_get_minidump(vha);
else
ql_log(ql_log_fatal, vha, 0xb14c,
"Minidump disabled.\n");
qla8044_process_init_seq(vha);
if (qla8044_copy_bootloader(vha)) {
ql_log(ql_log_fatal, vha, 0xb0ab,
"%s: Copy bootloader, firmware restart failed!\n",
__func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_restart;
}
/*
* Loads F/W from flash
*/
qla8044_wr_reg(ha, QLA8044_FW_IMAGE_VALID, QLA8044_BOOT_FROM_FLASH);
qla8044_process_start_seq(vha);
exit_restart:
return ret_val;
}
/*
* qla8044_check_cmd_peg_status - Check peg status to see if Peg is
* initialized.
*
* @ha : Pointer to adapter structure
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_check_cmd_peg_status(struct scsi_qla_host *vha)
{
uint32_t val, ret_val = QLA_FUNCTION_FAILED;
int retries = CRB_CMDPEG_CHECK_RETRY_COUNT;
struct qla_hw_data *ha = vha->hw;
do {
val = qla8044_rd_reg(ha, QLA8044_CMDPEG_STATE);
if (val == PHAN_INITIALIZE_COMPLETE) {
ql_dbg(ql_dbg_p3p, vha, 0xb0ac,
"%s: Command Peg initialization "
"complete! state=0x%x\n", __func__, val);
ret_val = QLA_SUCCESS;
break;
}
msleep(CRB_CMDPEG_CHECK_DELAY);
} while (--retries);
return ret_val;
}
static int
qla8044_start_firmware(struct scsi_qla_host *vha)
{
int ret_val = QLA_SUCCESS;
if (qla8044_restart(vha)) {
ql_log(ql_log_fatal, vha, 0xb0ad,
"%s: Restart Error!!!, Need Reset!!!\n",
__func__);
ret_val = QLA_FUNCTION_FAILED;
goto exit_start_fw;
} else
ql_dbg(ql_dbg_p3p, vha, 0xb0af,
"%s: Restart done!\n", __func__);
ret_val = qla8044_check_cmd_peg_status(vha);
if (ret_val) {
ql_log(ql_log_fatal, vha, 0xb0b0,
"%s: Peg not initialized!\n", __func__);
ret_val = QLA_FUNCTION_FAILED;
}
exit_start_fw:
return ret_val;
}
void
qla8044_clear_drv_active(struct qla_hw_data *ha)
{
uint32_t drv_active;
struct scsi_qla_host *vha = pci_get_drvdata(ha->pdev);
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
drv_active &= ~(1 << (ha->portnum));
ql_log(ql_log_info, vha, 0xb0b1,
"%s(%ld): drv_active: 0x%08x\n",
__func__, vha->host_no, drv_active);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
}
/*
* qla8044_device_bootstrap - Initialize device, set DEV_READY, start fw
* @ha: pointer to adapter structure
*
* Note: IDC lock must be held upon entry
**/
static int
qla8044_device_bootstrap(struct scsi_qla_host *vha)
{
int rval = QLA_FUNCTION_FAILED;
int i;
uint32_t old_count = 0, count = 0;
int need_reset = 0;
uint32_t idc_ctrl;
struct qla_hw_data *ha = vha->hw;
need_reset = qla8044_need_reset(vha);
if (!need_reset) {
old_count = qla8044_rd_direct(vha,
QLA8044_PEG_ALIVE_COUNTER_INDEX);
for (i = 0; i < 10; i++) {
msleep(200);
count = qla8044_rd_direct(vha,
QLA8044_PEG_ALIVE_COUNTER_INDEX);
if (count != old_count) {
rval = QLA_SUCCESS;
goto dev_ready;
}
}
qla8044_flash_lock_recovery(vha);
} else {
/* We are trying to perform a recovery here. */
if (ha->flags.isp82xx_fw_hung)
qla8044_flash_lock_recovery(vha);
}
/* set to DEV_INITIALIZING */
ql_log(ql_log_info, vha, 0xb0b2,
"%s: HW State: INITIALIZING\n", __func__);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_INITIALIZING);
qla8044_idc_unlock(ha);
rval = qla8044_start_firmware(vha);
qla8044_idc_lock(ha);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_info, vha, 0xb0b3,
"%s: HW State: FAILED\n", __func__);
qla8044_clear_drv_active(ha);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_FAILED);
return rval;
}
/* For ISP8044, If IDC_CTRL GRACEFUL_RESET_BIT1 is set , reset it after
* device goes to INIT state. */
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
if (idc_ctrl & GRACEFUL_RESET_BIT1) {
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL,
(idc_ctrl & ~GRACEFUL_RESET_BIT1));
ha->fw_dumped = 0;
}
dev_ready:
ql_log(ql_log_info, vha, 0xb0b4,
"%s: HW State: READY\n", __func__);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX, QLA8XXX_DEV_READY);
return rval;
}
/*-------------------------Reset Sequence Functions-----------------------*/
static void
qla8044_dump_reset_seq_hdr(struct scsi_qla_host *vha)
{
u8 *phdr;
if (!vha->reset_tmplt.buff) {
ql_log(ql_log_fatal, vha, 0xb0b5,
"%s: Error Invalid reset_seq_template\n", __func__);
return;
}
phdr = vha->reset_tmplt.buff;
ql_dbg(ql_dbg_p3p, vha, 0xb0b6,
"Reset Template :\n\t0x%X 0x%X 0x%X 0x%X"
"0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n"
"\t0x%X 0x%X 0x%X 0x%X 0x%X 0x%X\n\n",
*phdr, *(phdr+1), *(phdr+2), *(phdr+3), *(phdr+4),
*(phdr+5), *(phdr+6), *(phdr+7), *(phdr + 8),
*(phdr+9), *(phdr+10), *(phdr+11), *(phdr+12),
*(phdr+13), *(phdr+14), *(phdr+15));
}
/*
* qla8044_reset_seq_checksum_test - Validate Reset Sequence template.
*
* @ha : Pointer to adapter structure
*
* Return Value - QLA_SUCCESS/QLA_FUNCTION_FAILED
*/
static int
qla8044_reset_seq_checksum_test(struct scsi_qla_host *vha)
{
uint32_t sum = 0;
uint16_t *buff = (uint16_t *)vha->reset_tmplt.buff;
int u16_count = vha->reset_tmplt.hdr->size / sizeof(uint16_t);
while (u16_count-- > 0)
sum += *buff++;
while (sum >> 16)
sum = (sum & 0xFFFF) + (sum >> 16);
/* checksum of 0 indicates a valid template */
if (~sum) {
return QLA_SUCCESS;
} else {
ql_log(ql_log_fatal, vha, 0xb0b7,
"%s: Reset seq checksum failed\n", __func__);
return QLA_FUNCTION_FAILED;
}
}
/*
* qla8044_read_reset_template - Read Reset Template from Flash, validate
* the template and store offsets of stop/start/init offsets in ha->reset_tmplt.
*
* @ha : Pointer to adapter structure
*/
void
qla8044_read_reset_template(struct scsi_qla_host *vha)
{
uint8_t *p_buff;
uint32_t addr, tmplt_hdr_def_size, tmplt_hdr_size;
vha->reset_tmplt.seq_error = 0;
vha->reset_tmplt.buff = vmalloc(QLA8044_RESTART_TEMPLATE_SIZE);
if (vha->reset_tmplt.buff == NULL) {
ql_log(ql_log_fatal, vha, 0xb0b8,
"%s: Failed to allocate reset template resources\n",
__func__);
goto exit_read_reset_template;
}
p_buff = vha->reset_tmplt.buff;
addr = QLA8044_RESET_TEMPLATE_ADDR;
tmplt_hdr_def_size =
sizeof(struct qla8044_reset_template_hdr) / sizeof(uint32_t);
ql_dbg(ql_dbg_p3p, vha, 0xb0b9,
"%s: Read template hdr size %d from Flash\n",
__func__, tmplt_hdr_def_size);
/* Copy template header from flash */
if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
ql_log(ql_log_fatal, vha, 0xb0ba,
"%s: Failed to read reset template\n", __func__);
goto exit_read_template_error;
}
vha->reset_tmplt.hdr =
(struct qla8044_reset_template_hdr *) vha->reset_tmplt.buff;
/* Validate the template header size and signature */
tmplt_hdr_size = vha->reset_tmplt.hdr->hdr_size/sizeof(uint32_t);
if ((tmplt_hdr_size != tmplt_hdr_def_size) ||
(vha->reset_tmplt.hdr->signature != RESET_TMPLT_HDR_SIGNATURE)) {
ql_log(ql_log_fatal, vha, 0xb0bb,
"%s: Template Header size invalid %d "
"tmplt_hdr_def_size %d!!!\n", __func__,
tmplt_hdr_size, tmplt_hdr_def_size);
goto exit_read_template_error;
}
addr = QLA8044_RESET_TEMPLATE_ADDR + vha->reset_tmplt.hdr->hdr_size;
p_buff = vha->reset_tmplt.buff + vha->reset_tmplt.hdr->hdr_size;
tmplt_hdr_def_size = (vha->reset_tmplt.hdr->size -
vha->reset_tmplt.hdr->hdr_size)/sizeof(uint32_t);
ql_dbg(ql_dbg_p3p, vha, 0xb0bc,
"%s: Read rest of the template size %d\n",
__func__, vha->reset_tmplt.hdr->size);
/* Copy rest of the template */
if (qla8044_read_flash_data(vha, p_buff, addr, tmplt_hdr_def_size)) {
ql_log(ql_log_fatal, vha, 0xb0bd,
"%s: Failed to read reset template\n", __func__);
goto exit_read_template_error;
}
/* Integrity check */
if (qla8044_reset_seq_checksum_test(vha)) {
ql_log(ql_log_fatal, vha, 0xb0be,
"%s: Reset Seq checksum failed!\n", __func__);
goto exit_read_template_error;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0bf,
"%s: Reset Seq checksum passed! Get stop, "
"start and init seq offsets\n", __func__);
/* Get STOP, START, INIT sequence offsets */
vha->reset_tmplt.init_offset = vha->reset_tmplt.buff +
vha->reset_tmplt.hdr->init_seq_offset;
vha->reset_tmplt.start_offset = vha->reset_tmplt.buff +
vha->reset_tmplt.hdr->start_seq_offset;
vha->reset_tmplt.stop_offset = vha->reset_tmplt.buff +
vha->reset_tmplt.hdr->hdr_size;
qla8044_dump_reset_seq_hdr(vha);
goto exit_read_reset_template;
exit_read_template_error:
vfree(vha->reset_tmplt.buff);
exit_read_reset_template:
return;
}
void
qla8044_set_idc_dontreset(struct scsi_qla_host *vha)
{
uint32_t idc_ctrl;
struct qla_hw_data *ha = vha->hw;
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
idc_ctrl |= DONTRESET_BIT0;
ql_dbg(ql_dbg_p3p, vha, 0xb0c0,
"%s: idc_ctrl = %d\n", __func__, idc_ctrl);
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
}
static inline void
qla8044_set_rst_ready(struct scsi_qla_host *vha)
{
uint32_t drv_state;
struct qla_hw_data *ha = vha->hw;
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
/* For ISP8044, drv_active register has 1 bit per function,
* shift 1 by func_num to set a bit for the function.*/
drv_state |= (1 << ha->portnum);
ql_log(ql_log_info, vha, 0xb0c1,
"%s(%ld): drv_state: 0x%08x\n",
__func__, vha->host_no, drv_state);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_STATE_INDEX, drv_state);
}
/**
* qla8044_need_reset_handler - Code to start reset sequence
* @vha: pointer to adapter structure
*
* Note: IDC lock must be held upon entry
*/
static void
qla8044_need_reset_handler(struct scsi_qla_host *vha)
{
uint32_t dev_state = 0, drv_state, drv_active;
unsigned long reset_timeout;
struct qla_hw_data *ha = vha->hw;
ql_log(ql_log_fatal, vha, 0xb0c2,
"%s: Performing ISP error recovery\n", __func__);
if (vha->flags.online) {
qla8044_idc_unlock(ha);
qla2x00_abort_isp_cleanup(vha);
ha->isp_ops->get_flash_version(vha, vha->req->ring);
ha->isp_ops->nvram_config(vha);
qla8044_idc_lock(ha);
}
dev_state = qla8044_rd_direct(vha,
QLA8044_CRB_DEV_STATE_INDEX);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
ql_log(ql_log_info, vha, 0xb0c5,
"%s(%ld): drv_state = 0x%x, drv_active = 0x%x dev_state = 0x%x\n",
__func__, vha->host_no, drv_state, drv_active, dev_state);
qla8044_set_rst_ready(vha);
/* wait for 10 seconds for reset ack from all functions */
reset_timeout = jiffies + (ha->fcoe_reset_timeout * HZ);
do {
if (time_after_eq(jiffies, reset_timeout)) {
ql_log(ql_log_info, vha, 0xb0c4,
"%s: Function %d: Reset Ack Timeout!, drv_state: 0x%08x, drv_active: 0x%08x\n",
__func__, ha->portnum, drv_state, drv_active);
break;
}
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
dev_state = qla8044_rd_direct(vha,
QLA8044_CRB_DEV_STATE_INDEX);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
} while (((drv_state & drv_active) != drv_active) &&
(dev_state == QLA8XXX_DEV_NEED_RESET));
/* Remove IDC participation of functions not acknowledging */
if (drv_state != drv_active) {
ql_log(ql_log_info, vha, 0xb0c7,
"%s(%ld): Function %d turning off drv_active of non-acking function 0x%x\n",
__func__, vha->host_no, ha->portnum,
(drv_active ^ drv_state));
drv_active = drv_active & drv_state;
qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX,
drv_active);
} else {
/*
* Reset owner should execute reset recovery,
* if all functions acknowledged
*/
if ((ha->flags.nic_core_reset_owner) &&
(dev_state == QLA8XXX_DEV_NEED_RESET)) {
ha->flags.nic_core_reset_owner = 0;
qla8044_device_bootstrap(vha);
return;
}
}
/* Exit if non active function */
if (!(drv_active & (1 << ha->portnum))) {
ha->flags.nic_core_reset_owner = 0;
return;
}
/*
* Execute Reset Recovery if Reset Owner or Function 7
* is the only active function
*/
if (ha->flags.nic_core_reset_owner ||
((drv_state & drv_active) == QLA8044_FUN7_ACTIVE_INDEX)) {
ha->flags.nic_core_reset_owner = 0;
qla8044_device_bootstrap(vha);
}
}
static void
qla8044_set_drv_active(struct scsi_qla_host *vha)
{
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
/* For ISP8044, drv_active register has 1 bit per function,
* shift 1 by func_num to set a bit for the function.*/
drv_active |= (1 << ha->portnum);
ql_log(ql_log_info, vha, 0xb0c8,
"%s(%ld): drv_active: 0x%08x\n",
__func__, vha->host_no, drv_active);
qla8044_wr_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX, drv_active);
}
static int
qla8044_check_drv_active(struct scsi_qla_host *vha)
{
uint32_t drv_active;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
if (drv_active & (1 << ha->portnum))
return QLA_SUCCESS;
else
return QLA_TEST_FAILED;
}
static void
qla8044_clear_idc_dontreset(struct scsi_qla_host *vha)
{
uint32_t idc_ctrl;
struct qla_hw_data *ha = vha->hw;
idc_ctrl = qla8044_rd_reg(ha, QLA8044_IDC_DRV_CTRL);
idc_ctrl &= ~DONTRESET_BIT0;
ql_log(ql_log_info, vha, 0xb0c9,
"%s: idc_ctrl = %d\n", __func__,
idc_ctrl);
qla8044_wr_reg(ha, QLA8044_IDC_DRV_CTRL, idc_ctrl);
}
static int
qla8044_set_idc_ver(struct scsi_qla_host *vha)
{
int idc_ver;
uint32_t drv_active;
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
if (drv_active == (1 << ha->portnum)) {
idc_ver = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_IDC_VERSION_INDEX);
idc_ver &= (~0xFF);
idc_ver |= QLA8044_IDC_VER_MAJ_VALUE;
qla8044_wr_direct(vha, QLA8044_CRB_DRV_IDC_VERSION_INDEX,
idc_ver);
ql_log(ql_log_info, vha, 0xb0ca,
"%s: IDC version updated to %d\n",
__func__, idc_ver);
} else {
idc_ver = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_IDC_VERSION_INDEX);
idc_ver &= 0xFF;
if (QLA8044_IDC_VER_MAJ_VALUE != idc_ver) {
ql_log(ql_log_info, vha, 0xb0cb,
"%s: qla4xxx driver IDC version %d "
"is not compatible with IDC version %d "
"of other drivers!\n",
__func__, QLA8044_IDC_VER_MAJ_VALUE,
idc_ver);
rval = QLA_FUNCTION_FAILED;
goto exit_set_idc_ver;
}
}
/* Update IDC_MINOR_VERSION */
idc_ver = qla8044_rd_reg(ha, QLA8044_CRB_IDC_VER_MINOR);
idc_ver &= ~(0x03 << (ha->portnum * 2));
idc_ver |= (QLA8044_IDC_VER_MIN_VALUE << (ha->portnum * 2));
qla8044_wr_reg(ha, QLA8044_CRB_IDC_VER_MINOR, idc_ver);
exit_set_idc_ver:
return rval;
}
static int
qla8044_update_idc_reg(struct scsi_qla_host *vha)
{
uint32_t drv_active;
int rval = QLA_SUCCESS;
struct qla_hw_data *ha = vha->hw;
if (vha->flags.init_done)
goto exit_update_idc_reg;
qla8044_idc_lock(ha);
qla8044_set_drv_active(vha);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
/* If we are the first driver to load and
* ql2xdontresethba is not set, clear IDC_CTRL BIT0. */
if ((drv_active == (1 << ha->portnum)) && !ql2xdontresethba)
qla8044_clear_idc_dontreset(vha);
rval = qla8044_set_idc_ver(vha);
if (rval == QLA_FUNCTION_FAILED)
qla8044_clear_drv_active(ha);
qla8044_idc_unlock(ha);
exit_update_idc_reg:
return rval;
}
/**
* qla8044_need_qsnt_handler - Code to start qsnt
* @vha: pointer to adapter structure
*/
static void
qla8044_need_qsnt_handler(struct scsi_qla_host *vha)
{
unsigned long qsnt_timeout;
uint32_t drv_state, drv_active, dev_state;
struct qla_hw_data *ha = vha->hw;
if (vha->flags.online)
qla2x00_quiesce_io(vha);
else
return;
qla8044_set_qsnt_ready(vha);
/* Wait for 30 secs for all functions to ack qsnt mode */
qsnt_timeout = jiffies + (QSNT_ACK_TOV * HZ);
drv_state = qla8044_rd_direct(vha, QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha, QLA8044_CRB_DRV_ACTIVE_INDEX);
/* Shift drv_active by 1 to match drv_state. As quiescent ready bit
position is at bit 1 and drv active is at bit 0 */
drv_active = drv_active << 1;
while (drv_state != drv_active) {
if (time_after_eq(jiffies, qsnt_timeout)) {
/* Other functions did not ack, changing state to
* DEV_READY
*/
clear_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_READY);
qla8044_clear_qsnt_ready(vha);
ql_log(ql_log_info, vha, 0xb0cc,
"Timeout waiting for quiescent ack!!!\n");
return;
}
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
drv_state = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_STATE_INDEX);
drv_active = qla8044_rd_direct(vha,
QLA8044_CRB_DRV_ACTIVE_INDEX);
drv_active = drv_active << 1;
}
/* All functions have Acked. Set quiescent state */
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT) {
qla8044_wr_direct(vha, QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_QUIESCENT);
ql_log(ql_log_info, vha, 0xb0cd,
"%s: HW State: QUIESCENT\n", __func__);
}
}
/*
* qla8044_device_state_handler - Adapter state machine
* @ha: pointer to host adapter structure.
*
* Note: IDC lock must be UNLOCKED upon entry
**/
int
qla8044_device_state_handler(struct scsi_qla_host *vha)
{
uint32_t dev_state;
int rval = QLA_SUCCESS;
unsigned long dev_init_timeout;
struct qla_hw_data *ha = vha->hw;
rval = qla8044_update_idc_reg(vha);
if (rval == QLA_FUNCTION_FAILED)
goto exit_error;
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
ql_dbg(ql_dbg_p3p, vha, 0xb0ce,
"Device state is 0x%x = %s\n",
dev_state, dev_state < MAX_STATES ?
qdev_state(dev_state) : "Unknown");
/* wait for 30 seconds for device to go ready */
dev_init_timeout = jiffies + (ha->fcoe_dev_init_timeout * HZ);
qla8044_idc_lock(ha);
while (1) {
if (time_after_eq(jiffies, dev_init_timeout)) {
if (qla8044_check_drv_active(vha) == QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0xb0cf,
"%s: Device Init Failed 0x%x = %s\n",
QLA2XXX_DRIVER_NAME, dev_state,
dev_state < MAX_STATES ?
qdev_state(dev_state) : "Unknown");
qla8044_wr_direct(vha,
QLA8044_CRB_DEV_STATE_INDEX,
QLA8XXX_DEV_FAILED);
}
}
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
ql_log(ql_log_info, vha, 0xb0d0,
"Device state is 0x%x = %s\n",
dev_state, dev_state < MAX_STATES ?
qdev_state(dev_state) : "Unknown");
/* NOTE: Make sure idc unlocked upon exit of switch statement */
switch (dev_state) {
case QLA8XXX_DEV_READY:
ha->flags.nic_core_reset_owner = 0;
goto exit;
case QLA8XXX_DEV_COLD:
rval = qla8044_device_bootstrap(vha);
break;
case QLA8XXX_DEV_INITIALIZING:
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
break;
case QLA8XXX_DEV_NEED_RESET:
/* For ISP8044, if NEED_RESET is set by any driver,
* it should be honored, irrespective of IDC_CTRL
* DONTRESET_BIT0 */
qla8044_need_reset_handler(vha);
break;
case QLA8XXX_DEV_NEED_QUIESCENT:
/* idc locked/unlocked in handler */
qla8044_need_qsnt_handler(vha);
/* Reset the init timeout after qsnt handler */
dev_init_timeout = jiffies +
(ha->fcoe_reset_timeout * HZ);
break;
case QLA8XXX_DEV_QUIESCENT:
ql_log(ql_log_info, vha, 0xb0d1,
"HW State: QUIESCENT\n");
qla8044_idc_unlock(ha);
msleep(1000);
qla8044_idc_lock(ha);
/* Reset the init timeout after qsnt handler */
dev_init_timeout = jiffies +
(ha->fcoe_reset_timeout * HZ);
break;
case QLA8XXX_DEV_FAILED:
ha->flags.nic_core_reset_owner = 0;
qla8044_idc_unlock(ha);
qla8xxx_dev_failed_handler(vha);
rval = QLA_FUNCTION_FAILED;
qla8044_idc_lock(ha);
goto exit;
default:
qla8044_idc_unlock(ha);
qla8xxx_dev_failed_handler(vha);
rval = QLA_FUNCTION_FAILED;
qla8044_idc_lock(ha);
goto exit;
}
}
exit:
qla8044_idc_unlock(ha);
exit_error:
return rval;
}
/**
* qla4_8xxx_check_temp - Check the ISP82XX temperature.
* @vha: adapter block pointer.
*
* Note: The caller should not hold the idc lock.
*/
static int
qla8044_check_temp(struct scsi_qla_host *vha)
{
uint32_t temp, temp_state, temp_val;
int status = QLA_SUCCESS;
temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
temp_state = qla82xx_get_temp_state(temp);
temp_val = qla82xx_get_temp_val(temp);
if (temp_state == QLA82XX_TEMP_PANIC) {
ql_log(ql_log_warn, vha, 0xb0d2,
"Device temperature %d degrees C"
" exceeds maximum allowed. Hardware has been shut"
" down\n", temp_val);
status = QLA_FUNCTION_FAILED;
return status;
} else if (temp_state == QLA82XX_TEMP_WARN) {
ql_log(ql_log_warn, vha, 0xb0d3,
"Device temperature %d"
" degrees C exceeds operating range."
" Immediate action needed.\n", temp_val);
}
return 0;
}
int qla8044_read_temperature(scsi_qla_host_t *vha)
{
uint32_t temp;
temp = qla8044_rd_direct(vha, QLA8044_CRB_TEMP_STATE_INDEX);
return qla82xx_get_temp_val(temp);
}
/**
* qla8044_check_fw_alive - Check firmware health
* @vha: Pointer to host adapter structure.
*
* Context: Interrupt
*/
int
qla8044_check_fw_alive(struct scsi_qla_host *vha)
{
uint32_t fw_heartbeat_counter;
uint32_t halt_status1, halt_status2;
int status = QLA_SUCCESS;
fw_heartbeat_counter = qla8044_rd_direct(vha,
QLA8044_PEG_ALIVE_COUNTER_INDEX);
/* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
if (fw_heartbeat_counter == 0xffffffff) {
ql_dbg(ql_dbg_p3p, vha, 0xb0d4,
"scsi%ld: %s: Device in frozen "
"state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
vha->host_no, __func__);
return status;
}
if (vha->fw_heartbeat_counter == fw_heartbeat_counter) {
vha->seconds_since_last_heartbeat++;
/* FW not alive after 2 seconds */
if (vha->seconds_since_last_heartbeat == 2) {
vha->seconds_since_last_heartbeat = 0;
halt_status1 = qla8044_rd_direct(vha,
QLA8044_PEG_HALT_STATUS1_INDEX);
halt_status2 = qla8044_rd_direct(vha,
QLA8044_PEG_HALT_STATUS2_INDEX);
ql_log(ql_log_info, vha, 0xb0d5,
"scsi(%ld): %s, ISP8044 "
"Dumping hw/fw registers:\n"
" PEG_HALT_STATUS1: 0x%x, "
"PEG_HALT_STATUS2: 0x%x,\n",
vha->host_no, __func__, halt_status1,
halt_status2);
status = QLA_FUNCTION_FAILED;
}
} else
vha->seconds_since_last_heartbeat = 0;
vha->fw_heartbeat_counter = fw_heartbeat_counter;
return status;
}
void
qla8044_watchdog(struct scsi_qla_host *vha)
{
uint32_t dev_state, halt_status;
int halt_status_unrecoverable = 0;
struct qla_hw_data *ha = vha->hw;
/* don't poll if reset is going on or FW hang in quiescent state */
if (!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) ||
test_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags))) {
dev_state = qla8044_rd_direct(vha, QLA8044_CRB_DEV_STATE_INDEX);
if (qla8044_check_fw_alive(vha)) {
ha->flags.isp82xx_fw_hung = 1;
ql_log(ql_log_warn, vha, 0xb10a,
"Firmware hung.\n");
qla82xx_clear_pending_mbx(vha);
}
if (qla8044_check_temp(vha)) {
set_bit(ISP_UNRECOVERABLE, &vha->dpc_flags);
ha->flags.isp82xx_fw_hung = 1;
qla2xxx_wake_dpc(vha);
} else if (dev_state == QLA8XXX_DEV_NEED_RESET &&
!test_bit(ISP_ABORT_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_info, vha, 0xb0d6,
"%s: HW State: NEED RESET!\n",
__func__);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else if (dev_state == QLA8XXX_DEV_NEED_QUIESCENT &&
!test_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags)) {
ql_log(ql_log_info, vha, 0xb0d7,
"%s: HW State: NEED QUIES detected!\n",
__func__);
set_bit(ISP_QUIESCE_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
} else {
/* Check firmware health */
if (ha->flags.isp82xx_fw_hung) {
halt_status = qla8044_rd_direct(vha,
QLA8044_PEG_HALT_STATUS1_INDEX);
if (halt_status &
QLA8044_HALT_STATUS_FW_RESET) {
ql_log(ql_log_fatal, vha,
0xb0d8, "%s: Firmware "
"error detected device "
"is being reset\n",
__func__);
} else if (halt_status &
QLA8044_HALT_STATUS_UNRECOVERABLE) {
halt_status_unrecoverable = 1;
}
/* Since we cannot change dev_state in interrupt
* context, set appropriate DPC flag then wakeup
* DPC */
if (halt_status_unrecoverable) {
set_bit(ISP_UNRECOVERABLE,
&vha->dpc_flags);
} else {
if (dev_state ==
QLA8XXX_DEV_QUIESCENT) {
set_bit(FCOE_CTX_RESET_NEEDED,
&vha->dpc_flags);
ql_log(ql_log_info, vha, 0xb0d9,
"%s: FW CONTEXT Reset "
"needed!\n", __func__);
} else {
ql_log(ql_log_info, vha,
0xb0da, "%s: "
"detect abort needed\n",
__func__);
set_bit(ISP_ABORT_NEEDED,
&vha->dpc_flags);
}
}
qla2xxx_wake_dpc(vha);
}
}
}
}
static int
qla8044_minidump_process_control(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr)
{
struct qla8044_minidump_entry_crb *crb_entry;
uint32_t read_value, opcode, poll_time, addr, index;
uint32_t crb_addr, rval = QLA_SUCCESS;
unsigned long wtime;
struct qla8044_minidump_template_hdr *tmplt_hdr;
int i;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb0dd, "Entering fn: %s\n", __func__);
tmplt_hdr = (struct qla8044_minidump_template_hdr *)
ha->md_tmplt_hdr;
crb_entry = (struct qla8044_minidump_entry_crb *)entry_hdr;
crb_addr = crb_entry->addr;
for (i = 0; i < crb_entry->op_count; i++) {
opcode = crb_entry->crb_ctrl.opcode;
if (opcode & QLA82XX_DBG_OPCODE_WR) {
qla8044_wr_reg_indirect(vha, crb_addr,
crb_entry->value_1);
opcode &= ~QLA82XX_DBG_OPCODE_WR;
}
if (opcode & QLA82XX_DBG_OPCODE_RW) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
opcode &= ~QLA82XX_DBG_OPCODE_RW;
}
if (opcode & QLA82XX_DBG_OPCODE_AND) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
read_value &= crb_entry->value_2;
opcode &= ~QLA82XX_DBG_OPCODE_AND;
if (opcode & QLA82XX_DBG_OPCODE_OR) {
read_value |= crb_entry->value_3;
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
}
if (opcode & QLA82XX_DBG_OPCODE_OR) {
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
read_value |= crb_entry->value_3;
qla8044_wr_reg_indirect(vha, crb_addr, read_value);
opcode &= ~QLA82XX_DBG_OPCODE_OR;
}
if (opcode & QLA82XX_DBG_OPCODE_POLL) {
poll_time = crb_entry->crb_strd.poll_timeout;
wtime = jiffies + poll_time;
qla8044_rd_reg_indirect(vha, crb_addr, &read_value);
do {
if ((read_value & crb_entry->value_2) ==
crb_entry->value_1) {
break;
} else if (time_after_eq(jiffies, wtime)) {
/* capturing dump failed */
rval = QLA_FUNCTION_FAILED;
break;
} else {
qla8044_rd_reg_indirect(vha,
crb_addr, &read_value);
}
} while (1);
opcode &= ~QLA82XX_DBG_OPCODE_POLL;
}
if (opcode & QLA82XX_DBG_OPCODE_RDSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else {
addr = crb_addr;
}
qla8044_rd_reg_indirect(vha, addr, &read_value);
index = crb_entry->crb_ctrl.state_index_v;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_RDSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_WRSTATE) {
if (crb_entry->crb_strd.state_index_a) {
index = crb_entry->crb_strd.state_index_a;
addr = tmplt_hdr->saved_state_array[index];
} else {
addr = crb_addr;
}
if (crb_entry->crb_ctrl.state_index_v) {
index = crb_entry->crb_ctrl.state_index_v;
read_value =
tmplt_hdr->saved_state_array[index];
} else {
read_value = crb_entry->value_1;
}
qla8044_wr_reg_indirect(vha, addr, read_value);
opcode &= ~QLA82XX_DBG_OPCODE_WRSTATE;
}
if (opcode & QLA82XX_DBG_OPCODE_MDSTATE) {
index = crb_entry->crb_ctrl.state_index_v;
read_value = tmplt_hdr->saved_state_array[index];
read_value <<= crb_entry->crb_ctrl.shl;
read_value >>= crb_entry->crb_ctrl.shr;
if (crb_entry->value_2)
read_value &= crb_entry->value_2;
read_value |= crb_entry->value_3;
read_value += crb_entry->value_1;
tmplt_hdr->saved_state_array[index] = read_value;
opcode &= ~QLA82XX_DBG_OPCODE_MDSTATE;
}
crb_addr += crb_entry->crb_strd.addr_stride;
}
return rval;
}
static void
qla8044_minidump_process_rdcrb(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla8044_minidump_entry_crb *crb_hdr;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0de, "Entering fn: %s\n", __func__);
crb_hdr = (struct qla8044_minidump_entry_crb *)entry_hdr;
r_addr = crb_hdr->addr;
r_stride = crb_hdr->crb_strd.addr_stride;
loop_cnt = crb_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = r_addr;
*data_ptr++ = r_value;
r_addr += r_stride;
}
*d_ptr = data_ptr;
}
static int
qla8044_minidump_process_rdmem(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t r_addr, r_value, r_data;
uint32_t i, j, loop_cnt;
struct qla8044_minidump_entry_rdmem *m_hdr;
unsigned long flags;
uint32_t *data_ptr = *d_ptr;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb0df, "Entering fn: %s\n", __func__);
m_hdr = (struct qla8044_minidump_entry_rdmem *)entry_hdr;
r_addr = m_hdr->read_addr;
loop_cnt = m_hdr->read_data_size/16;
ql_dbg(ql_dbg_p3p, vha, 0xb0f0,
"[%s]: Read addr: 0x%x, read_data_size: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size);
if (r_addr & 0xf) {
ql_dbg(ql_dbg_p3p, vha, 0xb0f1,
"[%s]: Read addr 0x%x not 16 bytes aligned\n",
__func__, r_addr);
return QLA_FUNCTION_FAILED;
}
if (m_hdr->read_data_size % 16) {
ql_dbg(ql_dbg_p3p, vha, 0xb0f2,
"[%s]: Read data[0x%x] not multiple of 16 bytes\n",
__func__, m_hdr->read_data_size);
return QLA_FUNCTION_FAILED;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0f3,
"[%s]: rdmem_addr: 0x%x, read_data_size: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, m_hdr->read_data_size, loop_cnt);
write_lock_irqsave(&ha->hw_lock, flags);
for (i = 0; i < loop_cnt; i++) {
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_LO, r_addr);
r_value = 0;
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_ADDR_HI, r_value);
r_value = MIU_TA_CTL_ENABLE;
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
r_value = MIU_TA_CTL_START_ENABLE;
qla8044_wr_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL, r_value);
for (j = 0; j < MAX_CTL_CHECK; j++) {
qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_CTRL,
&r_value);
if ((r_value & MIU_TA_CTL_BUSY) == 0)
break;
}
if (j >= MAX_CTL_CHECK) {
write_unlock_irqrestore(&ha->hw_lock, flags);
return QLA_SUCCESS;
}
for (j = 0; j < 4; j++) {
qla8044_rd_reg_indirect(vha, MD_MIU_TEST_AGT_RDDATA[j],
&r_data);
*data_ptr++ = r_data;
}
r_addr += 16;
}
write_unlock_irqrestore(&ha->hw_lock, flags);
ql_dbg(ql_dbg_p3p, vha, 0xb0f4,
"Leaving fn: %s datacount: 0x%x\n",
__func__, (loop_cnt * 16));
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
/* ISP83xx flash read for _RDROM _BOARD */
static uint32_t
qla8044_minidump_process_rdrom(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t fl_addr, u32_count, rval;
struct qla8044_minidump_entry_rdrom *rom_hdr;
uint32_t *data_ptr = *d_ptr;
rom_hdr = (struct qla8044_minidump_entry_rdrom *)entry_hdr;
fl_addr = rom_hdr->read_addr;
u32_count = (rom_hdr->read_data_size)/sizeof(uint32_t);
ql_dbg(ql_dbg_p3p, vha, 0xb0f5, "[%s]: fl_addr: 0x%x, count: 0x%x\n",
__func__, fl_addr, u32_count);
rval = qla8044_lockless_flash_read_u32(vha, fl_addr,
(u8 *)(data_ptr), u32_count);
if (rval != QLA_SUCCESS) {
ql_log(ql_log_fatal, vha, 0xb0f6,
"%s: Flash Read Error,Count=%d\n", __func__, u32_count);
return QLA_FUNCTION_FAILED;
} else {
data_ptr += u32_count;
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
}
static void
qla8044_mark_entry_skipped(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, int index)
{
entry_hdr->d_ctrl.driver_flags |= QLA82XX_DBG_SKIPPED_FLAG;
ql_log(ql_log_info, vha, 0xb0f7,
"scsi(%ld): Skipping entry[%d]: ETYPE[0x%x]-ELEVEL[0x%x]\n",
vha->host_no, index, entry_hdr->entry_type,
entry_hdr->d_ctrl.entry_capture_mask);
}
static int
qla8044_minidump_process_l2tag(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
unsigned long p_wait, w_time, p_mask;
uint32_t c_value_w, c_value_r;
struct qla8044_minidump_entry_cache *cache_hdr;
int rval = QLA_FUNCTION_FAILED;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0f8, "Entering fn: %s\n", __func__);
cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
p_wait = cache_hdr->cache_ctrl.poll_wait;
p_mask = cache_hdr->cache_ctrl.poll_mask;
for (i = 0; i < loop_count; i++) {
qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
if (c_value_w)
qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
if (p_mask) {
w_time = jiffies + p_wait;
do {
qla8044_rd_reg_indirect(vha, c_addr,
&c_value_r);
if ((c_value_r & p_mask) == 0) {
break;
} else if (time_after_eq(jiffies, w_time)) {
/* capturing dump failed */
return rval;
}
} while (1);
}
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
qla8044_rd_reg_indirect(vha, addr, &r_value);
*data_ptr++ = r_value;
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
}
static void
qla8044_minidump_process_l1cache(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t addr, r_addr, c_addr, t_r_addr;
uint32_t i, k, loop_count, t_value, r_cnt, r_value;
uint32_t c_value_w;
struct qla8044_minidump_entry_cache *cache_hdr;
uint32_t *data_ptr = *d_ptr;
cache_hdr = (struct qla8044_minidump_entry_cache *)entry_hdr;
loop_count = cache_hdr->op_count;
r_addr = cache_hdr->read_addr;
c_addr = cache_hdr->control_addr;
c_value_w = cache_hdr->cache_ctrl.write_value;
t_r_addr = cache_hdr->tag_reg_addr;
t_value = cache_hdr->addr_ctrl.init_tag_value;
r_cnt = cache_hdr->read_ctrl.read_addr_cnt;
for (i = 0; i < loop_count; i++) {
qla8044_wr_reg_indirect(vha, t_r_addr, t_value);
qla8044_wr_reg_indirect(vha, c_addr, c_value_w);
addr = r_addr;
for (k = 0; k < r_cnt; k++) {
qla8044_rd_reg_indirect(vha, addr, &r_value);
*data_ptr++ = r_value;
addr += cache_hdr->read_ctrl.read_addr_stride;
}
t_value += cache_hdr->addr_ctrl.tag_value_stride;
}
*d_ptr = data_ptr;
}
static void
qla8044_minidump_process_rdocm(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t r_addr, r_stride, loop_cnt, i, r_value;
struct qla8044_minidump_entry_rdocm *ocm_hdr;
uint32_t *data_ptr = *d_ptr;
struct qla_hw_data *ha = vha->hw;
ql_dbg(ql_dbg_p3p, vha, 0xb0f9, "Entering fn: %s\n", __func__);
ocm_hdr = (struct qla8044_minidump_entry_rdocm *)entry_hdr;
r_addr = ocm_hdr->read_addr;
r_stride = ocm_hdr->read_addr_stride;
loop_cnt = ocm_hdr->op_count;
ql_dbg(ql_dbg_p3p, vha, 0xb0fa,
"[%s]: r_addr: 0x%x, r_stride: 0x%x, loop_cnt: 0x%x\n",
__func__, r_addr, r_stride, loop_cnt);
for (i = 0; i < loop_cnt; i++) {
r_value = readl((void __iomem *)(r_addr + ha->nx_pcibase));
*data_ptr++ = r_value;
r_addr += r_stride;
}
ql_dbg(ql_dbg_p3p, vha, 0xb0fb, "Leaving fn: %s datacount: 0x%lx\n",
__func__, (long unsigned int) (loop_cnt * sizeof(uint32_t)));
*d_ptr = data_ptr;
}
static void
qla8044_minidump_process_rdmux(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, s_stride, s_addr, s_value, loop_cnt, i, r_value;
struct qla8044_minidump_entry_mux *mux_hdr;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0fc, "Entering fn: %s\n", __func__);
mux_hdr = (struct qla8044_minidump_entry_mux *)entry_hdr;
r_addr = mux_hdr->read_addr;
s_addr = mux_hdr->select_addr;
s_stride = mux_hdr->select_value_stride;
s_value = mux_hdr->select_value;
loop_cnt = mux_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla8044_wr_reg_indirect(vha, s_addr, s_value);
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = s_value;
*data_ptr++ = r_value;
s_value += s_stride;
}
*d_ptr = data_ptr;
}
static void
qla8044_minidump_process_queue(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t s_addr, r_addr;
uint32_t r_stride, r_value, r_cnt, qid = 0;
uint32_t i, k, loop_cnt;
struct qla8044_minidump_entry_queue *q_hdr;
uint32_t *data_ptr = *d_ptr;
ql_dbg(ql_dbg_p3p, vha, 0xb0fd, "Entering fn: %s\n", __func__);
q_hdr = (struct qla8044_minidump_entry_queue *)entry_hdr;
s_addr = q_hdr->select_addr;
r_cnt = q_hdr->rd_strd.read_addr_cnt;
r_stride = q_hdr->rd_strd.read_addr_stride;
loop_cnt = q_hdr->op_count;
for (i = 0; i < loop_cnt; i++) {
qla8044_wr_reg_indirect(vha, s_addr, qid);
r_addr = q_hdr->read_addr;
for (k = 0; k < r_cnt; k++) {
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = r_value;
r_addr += r_stride;
}
qid += q_hdr->q_strd.queue_id_stride;
}
*d_ptr = data_ptr;
}
/* ISP83xx functions to process new minidump entries... */
static uint32_t
qla8044_minidump_process_pollrd(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t r_addr, s_addr, s_value, r_value, poll_wait, poll_mask;
uint16_t s_stride, i;
struct qla8044_minidump_entry_pollrd *pollrd_hdr;
uint32_t *data_ptr = *d_ptr;
pollrd_hdr = (struct qla8044_minidump_entry_pollrd *) entry_hdr;
s_addr = pollrd_hdr->select_addr;
r_addr = pollrd_hdr->read_addr;
s_value = pollrd_hdr->select_value;
s_stride = pollrd_hdr->select_value_stride;
poll_wait = pollrd_hdr->poll_wait;
poll_mask = pollrd_hdr->poll_mask;
for (i = 0; i < pollrd_hdr->op_count; i++) {
qla8044_wr_reg_indirect(vha, s_addr, s_value);
poll_wait = pollrd_hdr->poll_wait;
while (1) {
qla8044_rd_reg_indirect(vha, s_addr, &r_value);
if ((r_value & poll_mask) != 0) {
break;
} else {
usleep_range(1000, 1100);
if (--poll_wait == 0) {
ql_log(ql_log_fatal, vha, 0xb0fe,
"%s: TIMEOUT\n", __func__);
goto error;
}
}
}
qla8044_rd_reg_indirect(vha, r_addr, &r_value);
*data_ptr++ = s_value;
*data_ptr++ = r_value;
s_value += s_stride;
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
error:
return QLA_FUNCTION_FAILED;
}
static void
qla8044_minidump_process_rdmux2(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
uint32_t sel_val1, sel_val2, t_sel_val, data, i;
uint32_t sel_addr1, sel_addr2, sel_val_mask, read_addr;
struct qla8044_minidump_entry_rdmux2 *rdmux2_hdr;
uint32_t *data_ptr = *d_ptr;
rdmux2_hdr = (struct qla8044_minidump_entry_rdmux2 *) entry_hdr;
sel_val1 = rdmux2_hdr->select_value_1;
sel_val2 = rdmux2_hdr->select_value_2;
sel_addr1 = rdmux2_hdr->select_addr_1;
sel_addr2 = rdmux2_hdr->select_addr_2;
sel_val_mask = rdmux2_hdr->select_value_mask;
read_addr = rdmux2_hdr->read_addr;
for (i = 0; i < rdmux2_hdr->op_count; i++) {
qla8044_wr_reg_indirect(vha, sel_addr1, sel_val1);
t_sel_val = sel_val1 & sel_val_mask;
*data_ptr++ = t_sel_val;
qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
qla8044_rd_reg_indirect(vha, read_addr, &data);
*data_ptr++ = data;
qla8044_wr_reg_indirect(vha, sel_addr1, sel_val2);
t_sel_val = sel_val2 & sel_val_mask;
*data_ptr++ = t_sel_val;
qla8044_wr_reg_indirect(vha, sel_addr2, t_sel_val);
qla8044_rd_reg_indirect(vha, read_addr, &data);
*data_ptr++ = data;
sel_val1 += rdmux2_hdr->select_value_stride;
sel_val2 += rdmux2_hdr->select_value_stride;
}
*d_ptr = data_ptr;
}
static uint32_t
qla8044_minidump_process_pollrdmwr(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr,
uint32_t **d_ptr)
{
uint32_t poll_wait, poll_mask, r_value, data;
uint32_t addr_1, addr_2, value_1, value_2;
struct qla8044_minidump_entry_pollrdmwr *poll_hdr;
uint32_t *data_ptr = *d_ptr;
poll_hdr = (struct qla8044_minidump_entry_pollrdmwr *) entry_hdr;
addr_1 = poll_hdr->addr_1;
addr_2 = poll_hdr->addr_2;
value_1 = poll_hdr->value_1;
value_2 = poll_hdr->value_2;
poll_mask = poll_hdr->poll_mask;
qla8044_wr_reg_indirect(vha, addr_1, value_1);
poll_wait = poll_hdr->poll_wait;
while (1) {
qla8044_rd_reg_indirect(vha, addr_1, &r_value);
if ((r_value & poll_mask) != 0) {
break;
} else {
usleep_range(1000, 1100);
if (--poll_wait == 0) {
ql_log(ql_log_fatal, vha, 0xb0ff,
"%s: TIMEOUT\n", __func__);
goto error;
}
}
}
qla8044_rd_reg_indirect(vha, addr_2, &data);
data &= poll_hdr->modify_mask;
qla8044_wr_reg_indirect(vha, addr_2, data);
qla8044_wr_reg_indirect(vha, addr_1, value_2);
poll_wait = poll_hdr->poll_wait;
while (1) {
qla8044_rd_reg_indirect(vha, addr_1, &r_value);
if ((r_value & poll_mask) != 0) {
break;
} else {
usleep_range(1000, 1100);
if (--poll_wait == 0) {
ql_log(ql_log_fatal, vha, 0xb100,
"%s: TIMEOUT2\n", __func__);
goto error;
}
}
}
*data_ptr++ = addr_2;
*data_ptr++ = data;
*d_ptr = data_ptr;
return QLA_SUCCESS;
error:
return QLA_FUNCTION_FAILED;
}
#define ISP8044_PEX_DMA_ENGINE_INDEX 8
#define ISP8044_PEX_DMA_BASE_ADDRESS 0x77320000
#define ISP8044_PEX_DMA_NUM_OFFSET 0x10000
#define ISP8044_PEX_DMA_CMD_ADDR_LOW 0x0
#define ISP8044_PEX_DMA_CMD_ADDR_HIGH 0x04
#define ISP8044_PEX_DMA_CMD_STS_AND_CNTRL 0x08
#define ISP8044_PEX_DMA_READ_SIZE (16 * 1024)
#define ISP8044_PEX_DMA_MAX_WAIT (100 * 100) /* Max wait of 100 msecs */
static int
qla8044_check_dma_engine_state(struct scsi_qla_host *vha)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS;
uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
uint64_t dma_base_addr = 0;
struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
tmplt_hdr = ha->md_tmplt_hdr;
dma_eng_num =
tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
(dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
/* Read the pex-dma's command-status-and-control register. */
rval = qla8044_rd_reg_indirect(vha,
(dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
&cmd_sts_and_cntrl);
if (rval)
return QLA_FUNCTION_FAILED;
/* Check if requested pex-dma engine is available. */
if (cmd_sts_and_cntrl & BIT_31)
return QLA_SUCCESS;
return QLA_FUNCTION_FAILED;
}
static int
qla8044_start_pex_dma(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS, wait = 0;
uint32_t dma_eng_num = 0, cmd_sts_and_cntrl = 0;
uint64_t dma_base_addr = 0;
struct qla8044_minidump_template_hdr *tmplt_hdr = NULL;
tmplt_hdr = ha->md_tmplt_hdr;
dma_eng_num =
tmplt_hdr->saved_state_array[ISP8044_PEX_DMA_ENGINE_INDEX];
dma_base_addr = ISP8044_PEX_DMA_BASE_ADDRESS +
(dma_eng_num * ISP8044_PEX_DMA_NUM_OFFSET);
rval = qla8044_wr_reg_indirect(vha,
dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_LOW,
m_hdr->desc_card_addr);
if (rval)
goto error_exit;
rval = qla8044_wr_reg_indirect(vha,
dma_base_addr + ISP8044_PEX_DMA_CMD_ADDR_HIGH, 0);
if (rval)
goto error_exit;
rval = qla8044_wr_reg_indirect(vha,
dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL,
m_hdr->start_dma_cmd);
if (rval)
goto error_exit;
/* Wait for dma operation to complete. */
for (wait = 0; wait < ISP8044_PEX_DMA_MAX_WAIT; wait++) {
rval = qla8044_rd_reg_indirect(vha,
(dma_base_addr + ISP8044_PEX_DMA_CMD_STS_AND_CNTRL),
&cmd_sts_and_cntrl);
if (rval)
goto error_exit;
if ((cmd_sts_and_cntrl & BIT_1) == 0)
break;
udelay(10);
}
/* Wait a max of 100 ms, otherwise fallback to rdmem entry read */
if (wait >= ISP8044_PEX_DMA_MAX_WAIT) {
rval = QLA_FUNCTION_FAILED;
goto error_exit;
}
error_exit:
return rval;
}
static int
qla8044_minidump_pex_dma_read(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
struct qla_hw_data *ha = vha->hw;
int rval = QLA_SUCCESS;
struct qla8044_minidump_entry_rdmem_pex_dma *m_hdr = NULL;
uint32_t chunk_size, read_size;
uint8_t *data_ptr = (uint8_t *)*d_ptr;
void *rdmem_buffer = NULL;
dma_addr_t rdmem_dma;
struct qla8044_pex_dma_descriptor dma_desc;
rval = qla8044_check_dma_engine_state(vha);
if (rval != QLA_SUCCESS) {
ql_dbg(ql_dbg_p3p, vha, 0xb147,
"DMA engine not available. Fallback to rdmem-read.\n");
return QLA_FUNCTION_FAILED;
}
m_hdr = (void *)entry_hdr;
rdmem_buffer = dma_alloc_coherent(&ha->pdev->dev,
ISP8044_PEX_DMA_READ_SIZE, &rdmem_dma, GFP_KERNEL);
if (!rdmem_buffer) {
ql_dbg(ql_dbg_p3p, vha, 0xb148,
"Unable to allocate rdmem dma buffer\n");
return QLA_FUNCTION_FAILED;
}
/* Prepare pex-dma descriptor to be written to MS memory. */
/* dma-desc-cmd layout:
* 0-3: dma-desc-cmd 0-3
* 4-7: pcid function number
* 8-15: dma-desc-cmd 8-15
* dma_bus_addr: dma buffer address
* cmd.read_data_size: amount of data-chunk to be read.
*/
dma_desc.cmd.dma_desc_cmd = (m_hdr->dma_desc_cmd & 0xff0f);
dma_desc.cmd.dma_desc_cmd |=
((PCI_FUNC(ha->pdev->devfn) & 0xf) << 0x4);
dma_desc.dma_bus_addr = rdmem_dma;
dma_desc.cmd.read_data_size = chunk_size = ISP8044_PEX_DMA_READ_SIZE;
read_size = 0;
/*
* Perform rdmem operation using pex-dma.
* Prepare dma in chunks of ISP8044_PEX_DMA_READ_SIZE.
*/
while (read_size < m_hdr->read_data_size) {
if (m_hdr->read_data_size - read_size <
ISP8044_PEX_DMA_READ_SIZE) {
chunk_size = (m_hdr->read_data_size - read_size);
dma_desc.cmd.read_data_size = chunk_size;
}
dma_desc.src_addr = m_hdr->read_addr + read_size;
/* Prepare: Write pex-dma descriptor to MS memory. */
rval = qla8044_ms_mem_write_128b(vha,
m_hdr->desc_card_addr, (void *)&dma_desc,
(sizeof(struct qla8044_pex_dma_descriptor)/16));
if (rval) {
ql_log(ql_log_warn, vha, 0xb14a,
"%s: Error writing rdmem-dma-init to MS !!!\n",
__func__);
goto error_exit;
}
ql_dbg(ql_dbg_p3p, vha, 0xb14b,
"%s: Dma-descriptor: Instruct for rdmem dma "
"(chunk_size 0x%x).\n", __func__, chunk_size);
/* Execute: Start pex-dma operation. */
rval = qla8044_start_pex_dma(vha, m_hdr);
if (rval)
goto error_exit;
memcpy(data_ptr, rdmem_buffer, chunk_size);
data_ptr += chunk_size;
read_size += chunk_size;
}
*d_ptr = (void *)data_ptr;
error_exit:
if (rdmem_buffer)
dma_free_coherent(&ha->pdev->dev, ISP8044_PEX_DMA_READ_SIZE,
rdmem_buffer, rdmem_dma);
return rval;
}
static uint32_t
qla8044_minidump_process_rddfe(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
int loop_cnt;
uint32_t addr1, addr2, value, data, temp, wrVal;
uint8_t stride, stride2;
uint16_t count;
uint32_t poll, mask, modify_mask;
uint32_t wait_count = 0;
uint32_t *data_ptr = *d_ptr;
struct qla8044_minidump_entry_rddfe *rddfe;
rddfe = (struct qla8044_minidump_entry_rddfe *) entry_hdr;
addr1 = rddfe->addr_1;
value = rddfe->value;
stride = rddfe->stride;
stride2 = rddfe->stride2;
count = rddfe->count;
poll = rddfe->poll;
mask = rddfe->mask;
modify_mask = rddfe->modify_mask;
addr2 = addr1 + stride;
for (loop_cnt = 0x0; loop_cnt < count; loop_cnt++) {
qla8044_wr_reg_indirect(vha, addr1, (0x40000000 | value));
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb153,
"%s: TIMEOUT\n", __func__);
goto error;
} else {
qla8044_rd_reg_indirect(vha, addr2, &temp);
temp = temp & modify_mask;
temp = (temp | ((loop_cnt << 16) | loop_cnt));
wrVal = ((temp << 16) | temp);
qla8044_wr_reg_indirect(vha, addr2, wrVal);
qla8044_wr_reg_indirect(vha, addr1, value);
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb154,
"%s: TIMEOUT\n", __func__);
goto error;
}
qla8044_wr_reg_indirect(vha, addr1,
((0x40000000 | value) + stride2));
wait_count = 0;
while (wait_count < poll) {
qla8044_rd_reg_indirect(vha, addr1, &temp);
if ((temp & mask) != 0)
break;
wait_count++;
}
if (wait_count == poll) {
ql_log(ql_log_warn, vha, 0xb155,
"%s: TIMEOUT\n", __func__);
goto error;
}
qla8044_rd_reg_indirect(vha, addr2, &data);
*data_ptr++ = wrVal;
*data_ptr++ = data;
}
}
*d_ptr = data_ptr;
return QLA_SUCCESS;
error:
return -1;
}
static uint32_t
qla8044_minidump_process_rdmdio(struct scsi_qla_host *vha,
struct qla8044_minidump_entry_hdr *entry_hdr, uint32_t **d_ptr)
{
int ret = 0;
uint32_t addr1, addr2, value1, value2, data, selVal;
uint8_t stride1, stride2;
uint32_t addr3, addr4, addr5, addr6, addr7;
uint16_t count, loop_cnt;
uint32_t mask;
uint32_t *data_ptr = *d_ptr;
struct qla8044_minidump_entry_rdmdio *rdmdio;
rdmdio = (struct qla8044_minidump_entry_rdmdio *) entry_hdr;
addr1 = rdmdio->addr_1;
addr2 = rdmdio->addr_2;
value1 = rdmdio->value_1;
stride1 = rdmdio->stride_1;
stride2 = rdmdio->stride_2;
count