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[SCSI] pm80xx: Firmware logging support.
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Supports below logging facilities,
Inbound outbound queues dump.
Non fatal dump in case of IO failures.
Fatal dump in case of firmware failure.

[jejb: checkpatch spacing fixes]
Signed-off-by: Anandkumar.Santhanam@pmcs.com
Reviewed-by: Jack Wang <jinpu.wang@profitbricks.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
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Anand Kumar Santhanam authored and James Bottomley committed Oct 25, 2013
1 parent 2790940 commit d078b51
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Showing 9 changed files with 510 additions and 1 deletion.
119 changes: 119 additions & 0 deletions drivers/scsi/pm8001/pm8001_ctl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -308,6 +308,84 @@ static ssize_t pm8001_ctl_aap_log_show(struct device *cdev,
return str - buf;
}
static DEVICE_ATTR(aap_log, S_IRUGO, pm8001_ctl_aap_log_show, NULL);
/**
* pm8001_ctl_ib_queue_log_show - Out bound Queue log
* @cdev:pointer to embedded class device
* @buf: the buffer returned
* A sysfs 'read-only' shost attribute.
*/
static ssize_t pm8001_ctl_ib_queue_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
int offset;
char *str = buf;
int start = 0;
#define IB_MEMMAP(c) \
(*(u32 *)((u8 *)pm8001_ha-> \
memoryMap.region[IB].virt_ptr + \
pm8001_ha->evtlog_ib_offset + (c)))

for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
if (pm8001_ha->chip_id != chip_8001)
str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
else
str += sprintf(str, "0x%08x\n", IB_MEMMAP(start));
start = start + 4;
}
pm8001_ha->evtlog_ib_offset += SYSFS_OFFSET;
if ((((pm8001_ha->evtlog_ib_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
&& (pm8001_ha->chip_id != chip_8001))
pm8001_ha->evtlog_ib_offset = 0;
if ((((pm8001_ha->evtlog_ib_offset) % (PM8001_IB_OB_QUEUE_SIZE)) == 0)
&& (pm8001_ha->chip_id == chip_8001))
pm8001_ha->evtlog_ib_offset = 0;

return str - buf;
}

static DEVICE_ATTR(ib_log, S_IRUGO, pm8001_ctl_ib_queue_log_show, NULL);
/**
* pm8001_ctl_ob_queue_log_show - Out bound Queue log
* @cdev:pointer to embedded class device
* @buf: the buffer returned
* A sysfs 'read-only' shost attribute.
*/

static ssize_t pm8001_ctl_ob_queue_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;
int offset;
char *str = buf;
int start = 0;
#define OB_MEMMAP(c) \
(*(u32 *)((u8 *)pm8001_ha-> \
memoryMap.region[OB].virt_ptr + \
pm8001_ha->evtlog_ob_offset + (c)))

for (offset = 0; offset < IB_OB_READ_TIMES; offset++) {
if (pm8001_ha->chip_id != chip_8001)
str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
else
str += sprintf(str, "0x%08x\n", OB_MEMMAP(start));
start = start + 4;
}
pm8001_ha->evtlog_ob_offset += SYSFS_OFFSET;
if ((((pm8001_ha->evtlog_ob_offset) % (PM80XX_IB_OB_QUEUE_SIZE)) == 0)
&& (pm8001_ha->chip_id != chip_8001))
pm8001_ha->evtlog_ob_offset = 0;
if ((((pm8001_ha->evtlog_ob_offset) % (PM8001_IB_OB_QUEUE_SIZE)) == 0)
&& (pm8001_ha->chip_id == chip_8001))
pm8001_ha->evtlog_ob_offset = 0;

return str - buf;
}
static DEVICE_ATTR(ob_log, S_IRUGO, pm8001_ctl_ob_queue_log_show, NULL);
/**
* pm8001_ctl_bios_version_show - Bios version Display
* @cdev:pointer to embedded class device
Expand Down Expand Up @@ -377,6 +455,43 @@ static ssize_t pm8001_ctl_iop_log_show(struct device *cdev,
}
static DEVICE_ATTR(iop_log, S_IRUGO, pm8001_ctl_iop_log_show, NULL);

/**
** pm8001_ctl_fatal_log_show - fatal error logging
** @cdev:pointer to embedded class device
** @buf: the buffer returned
**
** A sysfs 'read-only' shost attribute.
**/

static ssize_t pm8001_ctl_fatal_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
u32 count;

count = pm80xx_get_fatal_dump(cdev, attr, buf);
return count;
}

static DEVICE_ATTR(fatal_log, S_IRUGO, pm8001_ctl_fatal_log_show, NULL);


/**
** pm8001_ctl_gsm_log_show - gsm dump collection
** @cdev:pointer to embedded class device
** @buf: the buffer returned
**A sysfs 'read-only' shost attribute.
**/
static ssize_t pm8001_ctl_gsm_log_show(struct device *cdev,
struct device_attribute *attr, char *buf)
{
u32 count;

count = pm8001_get_gsm_dump(cdev, SYSFS_OFFSET, buf);
return count;
}

static DEVICE_ATTR(gsm_log, S_IRUGO, pm8001_ctl_gsm_log_show, NULL);

#define FLASH_CMD_NONE 0x00
#define FLASH_CMD_UPDATE 0x01
#define FLASH_CMD_SET_NVMD 0x02
Expand Down Expand Up @@ -636,13 +751,17 @@ struct device_attribute *pm8001_host_attrs[] = {
&dev_attr_update_fw,
&dev_attr_aap_log,
&dev_attr_iop_log,
&dev_attr_fatal_log,
&dev_attr_gsm_log,
&dev_attr_max_out_io,
&dev_attr_max_devices,
&dev_attr_max_sg_list,
&dev_attr_sas_spec_support,
&dev_attr_logging_level,
&dev_attr_host_sas_address,
&dev_attr_bios_version,
&dev_attr_ib_log,
&dev_attr_ob_log,
NULL,
};

4 changes: 4 additions & 0 deletions drivers/scsi/pm8001/pm8001_ctl.h
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Original file line number Diff line number Diff line change
Expand Up @@ -55,5 +55,9 @@
#define FAIL_OUT_MEMORY 0x000c00
#define FLASH_IN_PROGRESS 0x001000

#define IB_OB_READ_TIMES 256
#define SYSFS_OFFSET 1024
#define PM80XX_IB_OB_QUEUE_SIZE (32 * 1024)
#define PM8001_IB_OB_QUEUE_SIZE (16 * 1024)
#endif /* PM8001_CTL_H_INCLUDED */

3 changes: 2 additions & 1 deletion drivers/scsi/pm8001/pm8001_defs.h
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Original file line number Diff line number Diff line change
Expand Up @@ -102,7 +102,8 @@ enum memory_region_num {
NVMD, /* NVM device */
DEV_MEM, /* memory for devices */
CCB_MEM, /* memory for command control block */
FW_FLASH /* memory for fw flash update */
FW_FLASH, /* memory for fw flash update */
FORENSIC_MEM /* memory for fw forensic data */
};
#define PM8001_EVENT_LOG_SIZE (128 * 1024)

Expand Down
83 changes: 83 additions & 0 deletions drivers/scsi/pm8001/pm8001_hwi.c
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Original file line number Diff line number Diff line change
Expand Up @@ -5001,6 +5001,89 @@ pm8001_chip_fw_flash_update_req(struct pm8001_hba_info *pm8001_ha,
return rc;
}

ssize_t
pm8001_get_gsm_dump(struct device *cdev, u32 length, char *buf)
{
u32 value, rem, offset = 0, bar = 0;
u32 index, work_offset, dw_length;
u32 shift_value, gsm_base, gsm_dump_offset;
char *direct_data;
struct Scsi_Host *shost = class_to_shost(cdev);
struct sas_ha_struct *sha = SHOST_TO_SAS_HA(shost);
struct pm8001_hba_info *pm8001_ha = sha->lldd_ha;

direct_data = buf;
gsm_dump_offset = pm8001_ha->fatal_forensic_shift_offset;

/* check max is 1 Mbytes */
if ((length > 0x100000) || (gsm_dump_offset & 3) ||
((gsm_dump_offset + length) > 0x1000000))
return 1;

if (pm8001_ha->chip_id == chip_8001)
bar = 2;
else
bar = 1;

work_offset = gsm_dump_offset & 0xFFFF0000;
offset = gsm_dump_offset & 0x0000FFFF;
gsm_dump_offset = work_offset;
/* adjust length to dword boundary */
rem = length & 3;
dw_length = length >> 2;

for (index = 0; index < dw_length; index++) {
if ((work_offset + offset) & 0xFFFF0000) {
if (pm8001_ha->chip_id == chip_8001)
shift_value = ((gsm_dump_offset + offset) &
SHIFT_REG_64K_MASK);
else
shift_value = (((gsm_dump_offset + offset) &
SHIFT_REG_64K_MASK) >>
SHIFT_REG_BIT_SHIFT);

if (pm8001_ha->chip_id == chip_8001) {
gsm_base = GSM_BASE;
if (-1 == pm8001_bar4_shift(pm8001_ha,
(gsm_base + shift_value)))
return 1;
} else {
gsm_base = 0;
if (-1 == pm80xx_bar4_shift(pm8001_ha,
(gsm_base + shift_value)))
return 1;
}
gsm_dump_offset = (gsm_dump_offset + offset) &
0xFFFF0000;
work_offset = 0;
offset = offset & 0x0000FFFF;
}
value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
0x0000FFFF);
direct_data += sprintf(direct_data, "%08x ", value);
offset += 4;
}
if (rem != 0) {
value = pm8001_cr32(pm8001_ha, bar, (work_offset + offset) &
0x0000FFFF);
/* xfr for non_dw */
direct_data += sprintf(direct_data, "%08x ", value);
}
/* Shift back to BAR4 original address */
if (pm8001_ha->chip_id == chip_8001) {
if (-1 == pm8001_bar4_shift(pm8001_ha, 0))
return 1;
} else {
if (-1 == pm80xx_bar4_shift(pm8001_ha, 0))
return 1;
}
pm8001_ha->fatal_forensic_shift_offset += 1024;

if (pm8001_ha->fatal_forensic_shift_offset >= 0x100000)
pm8001_ha->fatal_forensic_shift_offset = 0;
return direct_data - buf;
}

int
pm8001_chip_set_dev_state_req(struct pm8001_hba_info *pm8001_ha,
struct pm8001_device *pm8001_dev, u32 state)
Expand Down
3 changes: 3 additions & 0 deletions drivers/scsi/pm8001/pm8001_hwi.h
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Original file line number Diff line number Diff line change
Expand Up @@ -1027,5 +1027,8 @@ struct set_dev_state_resp {
#define DEVREG_FAILURE_PORT_NOT_VALID_STATE 0x06
#define DEVREG_FAILURE_DEVICE_TYPE_NOT_VALID 0x07

#define GSM_BASE 0x4F0000
#define SHIFT_REG_64K_MASK 0xffff0000
#define SHIFT_REG_BIT_SHIFT 8
#endif

4 changes: 4 additions & 0 deletions drivers/scsi/pm8001/pm8001_init.c
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Original file line number Diff line number Diff line change
Expand Up @@ -347,6 +347,10 @@ static int pm8001_alloc(struct pm8001_hba_info *pm8001_ha,
/* Memory region for fw flash */
pm8001_ha->memoryMap.region[FW_FLASH].total_len = 4096;

pm8001_ha->memoryMap.region[FORENSIC_MEM].num_elements = 1;
pm8001_ha->memoryMap.region[FORENSIC_MEM].total_len = 0x10000;
pm8001_ha->memoryMap.region[FORENSIC_MEM].element_size = 0x10000;
pm8001_ha->memoryMap.region[FORENSIC_MEM].alignment = 0x10000;
for (i = 0; i < USI_MAX_MEMCNT; i++) {
if (pm8001_mem_alloc(pm8001_ha->pdev,
&pm8001_ha->memoryMap.region[i].virt_ptr,
Expand Down
68 changes: 68 additions & 0 deletions drivers/scsi/pm8001/pm8001_sas.h
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,61 @@ struct pm8001_ioctl_payload {
u8 *func_specific;
};

#define MPI_FATAL_ERROR_TABLE_OFFSET_MASK 0xFFFFFF
#define MPI_FATAL_ERROR_TABLE_SIZE(value) ((0xFF000000 & value) >> SHIFT24)
#define MPI_FATAL_EDUMP_TABLE_LO_OFFSET 0x00 /* HNFBUFL */
#define MPI_FATAL_EDUMP_TABLE_HI_OFFSET 0x04 /* HNFBUFH */
#define MPI_FATAL_EDUMP_TABLE_LENGTH 0x08 /* HNFBLEN */
#define MPI_FATAL_EDUMP_TABLE_HANDSHAKE 0x0C /* FDDHSHK */
#define MPI_FATAL_EDUMP_TABLE_STATUS 0x10 /* FDDTSTAT */
#define MPI_FATAL_EDUMP_TABLE_ACCUM_LEN 0x14 /* ACCDDLEN */
#define MPI_FATAL_EDUMP_HANDSHAKE_RDY 0x1
#define MPI_FATAL_EDUMP_HANDSHAKE_BUSY 0x0
#define MPI_FATAL_EDUMP_TABLE_STAT_RSVD 0x0
#define MPI_FATAL_EDUMP_TABLE_STAT_DMA_FAILED 0x1
#define MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_MORE_DATA 0x2
#define MPI_FATAL_EDUMP_TABLE_STAT_NF_SUCCESS_DONE 0x3
#define TYPE_GSM_SPACE 1
#define TYPE_QUEUE 2
#define TYPE_FATAL 3
#define TYPE_NON_FATAL 4
#define TYPE_INBOUND 1
#define TYPE_OUTBOUND 2
struct forensic_data {
u32 data_type;
union {
struct {
u32 direct_len;
u32 direct_offset;
void *direct_data;
} gsm_buf;
struct {
u16 queue_type;
u16 queue_index;
u32 direct_len;
void *direct_data;
} queue_buf;
struct {
u32 direct_len;
u32 direct_offset;
u32 read_len;
void *direct_data;
} data_buf;
};
};

/* bit31-26 - mask bar */
#define SCRATCH_PAD0_BAR_MASK 0xFC000000
/* bit25-0 - offset mask */
#define SCRATCH_PAD0_OFFSET_MASK 0x03FFFFFF
/* if AAP error state */
#define SCRATCH_PAD0_AAPERR_MASK 0xFFFFFFFF
/* Inbound doorbell bit7 */
#define SPCv_MSGU_CFG_TABLE_NONFATAL_DUMP 0x80
/* Inbound doorbell bit7 SPCV */
#define SPCV_MSGU_CFG_TABLE_TRANSFER_DEBUG_INFO 0x80
#define MAIN_MERRDCTO_MERRDCES 0xA0/* DWORD 0x28) */

struct pm8001_dispatch {
char *name;
int (*chip_init)(struct pm8001_hba_info *pm8001_ha);
Expand Down Expand Up @@ -346,6 +401,7 @@ union main_cfg_table {
u32 phy_attr_table_offset;
u32 port_recovery_timer;
u32 interrupt_reassertion_delay;
u32 fatal_n_non_fatal_dump; /* 0x28 */
} pm80xx_tbl;
};

Expand Down Expand Up @@ -420,6 +476,13 @@ struct pm8001_hba_info {
struct pm8001_hba_memspace io_mem[6];
struct mpi_mem_req memoryMap;
struct encrypt encrypt_info; /* support encryption */
struct forensic_data forensic_info;
u32 fatal_bar_loc;
u32 forensic_last_offset;
u32 fatal_forensic_shift_offset;
u32 forensic_fatal_step;
u32 evtlog_ib_offset;
u32 evtlog_ob_offset;
void __iomem *msg_unit_tbl_addr;/*Message Unit Table Addr*/
void __iomem *main_cfg_tbl_addr;/*Main Config Table Addr*/
void __iomem *general_stat_tbl_addr;/*General Status Table Addr*/
Expand All @@ -428,6 +491,7 @@ struct pm8001_hba_info {
void __iomem *pspa_q_tbl_addr;
/*MPI SAS PHY attributes Queue Config Table Addr*/
void __iomem *ivt_tbl_addr; /*MPI IVT Table Addr */
void __iomem *fatal_tbl_addr; /*MPI IVT Table Addr */
union main_cfg_table main_cfg_tbl;
union general_status_table gs_tbl;
struct inbound_queue_table inbnd_q_tbl[PM8001_MAX_SPCV_INB_NUM];
Expand Down Expand Up @@ -634,6 +698,10 @@ int pm80xx_set_thermal_config(struct pm8001_hba_info *pm8001_ha);
int pm8001_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
void pm8001_set_phy_profile(struct pm8001_hba_info *pm8001_ha,
u32 length, u8 *buf);
int pm80xx_bar4_shift(struct pm8001_hba_info *pm8001_ha, u32 shiftValue);
ssize_t pm80xx_get_fatal_dump(struct device *cdev,
struct device_attribute *attr, char *buf);
ssize_t pm8001_get_gsm_dump(struct device *cdev, u32, char *buf);
/* ctl shared API */
extern struct device_attribute *pm8001_host_attrs[];

Expand Down
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