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scsi: qla2xxx: Implementation to get and manage host, target stats and initiator port

Browse Source 
This statistics will help in debugging process and checking specific error
counts. It also provides a capability to isolate the port or bring it out
of isolation.

Link: https://lore.kernel.org/r/20210111093134.1206-2-njavali@marvell.com
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Saurav Kashyap 2021-01-11 01:31:28 -08:00 committed by Martin K. Petersen
parent ac341c2d2f
commit dbf1f53cfd
10 changed files with 718 additions and 0 deletions
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9
drivers/scsi/qla2xxx/qla_attr.c
View File

@ -710,6 +710,12 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj,
ql_log(ql_log_info, vha, 0x706e,
"Issuing ISP reset.\n");
if (vha->hw->flags.port_isolated) {
ql_log(ql_log_info, vha, 0x706e,
"Port is isolated, returning.\n");
return -EINVAL;
}
scsi_block_requests(vha->host);
if (IS_QLA82XX(ha)) {
ha->flags.isp82xx_no_md_cap = 1;
@ -2717,6 +2723,9 @@ qla2x00_issue_lip(struct Scsi_Host *shost)
if (IS_QLAFX00(vha->hw))
return 0;
if (vha->hw->flags.port_isolated)
return 0;
qla2x00_loop_reset(vha);
return 0;
}

342
drivers/scsi/qla2xxx/qla_bsg.c
View File

@ -4,6 +4,7 @@
* Copyright (c) 2003-2014 QLogic Corporation
*/
#include "qla_def.h"
#include "qla_gbl.h"
#include <linux/kthread.h>
#include <linux/vmalloc.h>
@ -2444,6 +2445,323 @@ qla2x00_get_flash_image_status(struct bsg_job *bsg_job)
return 0;
}
static int
qla2x00_manage_host_stats(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_mng_host_stats_param *req_data;
struct ql_vnd_mng_host_stats_resp rsp_data;
u32 req_data_len;
int ret = 0;
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x0000, "Host is not online.\n");
return -EIO;
}
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_mng_host_stats_param)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data,
req_data_len);
switch (req_data->action) {
case QLA_STOP:
ret = qla2xxx_stop_stats(vha->host, req_data->stat_type);
break;
case QLA_START:
ret = qla2xxx_start_stats(vha->host, req_data->stat_type);
break;
case QLA_CLEAR:
ret = qla2xxx_reset_stats(vha->host, req_data->stat_type);
break;
default:
ql_log(ql_log_warn, vha, 0x0000, "Invalid action.\n");
ret = -EIO;
break;
}
kfree(req_data);
/* Prepare response */
rsp_data.status = ret;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_stats_resp);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
&rsp_data,
sizeof(struct ql_vnd_mng_host_stats_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return ret;
}
static int
qla2x00_get_host_stats(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_stats_param *req_data;
struct ql_vnd_host_stats_resp rsp_data;
u32 req_data_len;
int ret = 0;
u64 ini_entry_count = 0;
u64 entry_count = 0;
u64 tgt_num = 0;
u64 tmp_stat_type = 0;
u64 response_len = 0;
void *data;
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_stats_param)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data, req_data_len);
/* Copy stat type to work on it */
tmp_stat_type = req_data->stat_type;
if (tmp_stat_type & QLA2XX_TGT_SHT_LNK_DOWN) {
/* Num of tgts connected to this host */
tgt_num = qla2x00_get_num_tgts(vha);
/* unset BIT_17 */
tmp_stat_type &= ~(1 << 17);
}
/* Total ini stats */
ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
/* Total number of entries */
entry_count = ini_entry_count + tgt_num;
response_len = sizeof(struct ql_vnd_host_stats_resp) +
(sizeof(struct ql_vnd_stat_entry) * entry_count);
if (response_len > bsg_job->reply_payload.payload_len) {
rsp_data.status = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_stats_resp);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &rsp_data,
sizeof(struct ql_vnd_mng_host_stats_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
goto host_stat_out;
}
data = kzalloc(response_len, GFP_KERNEL);
ret = qla2xxx_get_ini_stats(fc_bsg_to_shost(bsg_job), req_data->stat_type,
data, response_len);
rsp_data.status = EXT_STATUS_OK;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_reply->reply_payload_rcv_len = sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt,
data, response_len);
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
kfree(data);
host_stat_out:
kfree(req_data);
return ret;
}
static struct fc_rport *
qla2xxx_find_rport(scsi_qla_host_t *vha, uint32_t tgt_num)
{
fc_port_t *fcport = NULL;
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->rport->number == tgt_num)
return fcport->rport;
}
return NULL;
}
static int
qla2x00_get_tgt_stats(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_tgt_stats_param *req_data;
u32 req_data_len;
int ret = 0;
u64 response_len = 0;
struct ql_vnd_tgt_stats_resp *data = NULL;
struct fc_rport *rport = NULL;
if (!vha->flags.online) {
ql_log(ql_log_warn, vha, 0x0000, "Host is not online.\n");
return -EIO;
}
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_stat_entry)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt,
req_data, req_data_len);
response_len = sizeof(struct ql_vnd_tgt_stats_resp) +
sizeof(struct ql_vnd_stat_entry);
/* structure + size for one entry */
data = kzalloc(response_len, GFP_KERNEL);
if (!data) {
kfree(req_data);
return -ENOMEM;
}
if (response_len > bsg_job->reply_payload.payload_len) {
data->status = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_BUFFER_TOO_SMALL;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_stats_resp);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &data,
sizeof(struct ql_vnd_tgt_stats_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
goto tgt_stat_out;
}
rport = qla2xxx_find_rport(vha, req_data->tgt_id);
if (!rport) {
ql_log(ql_log_warn, vha, 0x0000, "target %d not found.\n", req_data->tgt_id);
ret = EXT_STATUS_INVALID_PARAM;
data->status = EXT_STATUS_INVALID_PARAM;
goto reply;
}
ret = qla2xxx_get_tgt_stats(fc_bsg_to_shost(bsg_job), req_data->stat_type,
rport, (void *)data, response_len);
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
reply:
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, data,
response_len);
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
tgt_stat_out:
kfree(data);
kfree(req_data);
return ret;
}
static int
qla2x00_manage_host_port(struct bsg_job *bsg_job)
{
scsi_qla_host_t *vha = shost_priv(fc_bsg_to_shost(bsg_job));
struct fc_bsg_reply *bsg_reply = bsg_job->reply;
struct ql_vnd_mng_host_port_param *req_data;
struct ql_vnd_mng_host_port_resp rsp_data;
u32 req_data_len;
int ret = 0;
req_data_len = bsg_job->request_payload.payload_len;
if (req_data_len != sizeof(struct ql_vnd_mng_host_port_param)) {
ql_log(ql_log_warn, vha, 0x0000, "req_data_len invalid.\n");
return -EIO;
}
req_data = kzalloc(sizeof(*req_data), GFP_KERNEL);
if (!req_data) {
ql_log(ql_log_warn, vha, 0x0000, "req_data memory allocation failure.\n");
return -ENOMEM;
}
/* Copy the request buffer in req_data */
sg_copy_to_buffer(bsg_job->request_payload.sg_list,
bsg_job->request_payload.sg_cnt, req_data, req_data_len);
switch (req_data->action) {
case QLA_ENABLE:
ret = qla2xxx_enable_port(vha->host);
break;
case QLA_DISABLE:
ret = qla2xxx_disable_port(vha->host);
break;
default:
ql_log(ql_log_warn, vha, 0x0000, "Invalid action.\n");
ret = -EIO;
break;
}
kfree(req_data);
/* Prepare response */
rsp_data.status = ret;
bsg_reply->reply_data.vendor_reply.vendor_rsp[0] = EXT_STATUS_OK;
bsg_job->reply_payload.payload_len = sizeof(struct ql_vnd_mng_host_port_resp);
bsg_reply->reply_payload_rcv_len =
sg_copy_from_buffer(bsg_job->reply_payload.sg_list,
bsg_job->reply_payload.sg_cnt, &rsp_data,
sizeof(struct ql_vnd_mng_host_port_resp));
bsg_reply->result = DID_OK;
bsg_job_done(bsg_job, bsg_reply->result,
bsg_reply->reply_payload_rcv_len);
return ret;
}
static int
qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
{
@ -2520,6 +2838,18 @@ qla2x00_process_vendor_specific(struct bsg_job *bsg_job)
case QL_VND_SS_GET_FLASH_IMAGE_STATUS:
return qla2x00_get_flash_image_status(bsg_job);
case QL_VND_MANAGE_HOST_STATS:
return qla2x00_manage_host_stats(bsg_job);
case QL_VND_GET_HOST_STATS:
return qla2x00_get_host_stats(bsg_job);
case QL_VND_GET_TGT_STATS:
return qla2x00_get_tgt_stats(bsg_job);
case QL_VND_MANAGE_HOST_PORT:
return qla2x00_manage_host_port(bsg_job);
default:
return -ENOSYS;
}
@ -2547,6 +2877,17 @@ qla24xx_bsg_request(struct bsg_job *bsg_job)
vha = shost_priv(host);
}
/* Disable port will bring down the chip, allow enable command */
if (bsg_request->rqst_data.h_vendor.vendor_cmd[0] == QL_VND_MANAGE_HOST_PORT ||
bsg_request->rqst_data.h_vendor.vendor_cmd[0] == QL_VND_GET_HOST_STATS)
goto skip_chip_chk;
if (vha->hw->flags.port_isolated) {
bsg_reply->result = DID_ERROR;
/* operation not permitted */
return -EPERM;
}
if (qla2x00_chip_is_down(vha)) {
ql_dbg(ql_dbg_user, vha, 0x709f,
"BSG: ISP abort active/needed -- cmd=%d.\n",
@ -2554,6 +2895,7 @@ qla24xx_bsg_request(struct bsg_job *bsg_job)
return -EBUSY;
}
skip_chip_chk:
ql_dbg(ql_dbg_user, vha, 0x7000,
"Entered %s msgcode=0x%x.\n", __func__, bsg_request->msgcode);

5
drivers/scsi/qla2xxx/qla_bsg.h
View File

@ -31,6 +31,10 @@
#define QL_VND_DPORT_DIAGNOSTICS 0x19
#define QL_VND_GET_PRIV_STATS_EX 0x1A
#define QL_VND_SS_GET_FLASH_IMAGE_STATUS 0x1E
#define QL_VND_MANAGE_HOST_STATS 0x23
#define QL_VND_GET_HOST_STATS 0x24
#define QL_VND_GET_TGT_STATS 0x25
#define QL_VND_MANAGE_HOST_PORT 0x26
/* BSG Vendor specific subcode returns */
#define EXT_STATUS_OK 0
@ -40,6 +44,7 @@
#define EXT_STATUS_DATA_OVERRUN 7
#define EXT_STATUS_DATA_UNDERRUN 8
#define EXT_STATUS_MAILBOX 11
#define EXT_STATUS_BUFFER_TOO_SMALL 16
#define EXT_STATUS_NO_MEMORY 17
#define EXT_STATUS_DEVICE_OFFLINE 22

71
drivers/scsi/qla2xxx/qla_def.h
View File

@ -2557,6 +2557,10 @@ typedef struct fc_port {
u16 n2n_chip_reset;
struct dentry *dfs_rport_dir;
u64 tgt_short_link_down_cnt;
u64 tgt_link_down_time;
u64 dev_loss_tmo;
} fc_port_t;
enum {
@ -3922,6 +3926,7 @@ struct qla_hw_data {
uint32_t scm_enabled:1;
uint32_t max_req_queue_warned:1;
uint32_t plogi_template_valid:1;
uint32_t port_isolated:1;
} flags;
uint16_t max_exchg;
@ -4851,6 +4856,13 @@ typedef struct scsi_qla_host {
uint8_t scm_fabric_connection_flags;
unsigned int irq_offset;
u64 hw_err_cnt;
u64 interface_err_cnt;
u64 cmd_timeout_cnt;
u64 reset_cmd_err_cnt;
u64 link_down_time;
u64 short_link_down_cnt;
} scsi_qla_host_t;
struct qla27xx_image_status {
@ -5174,6 +5186,65 @@ struct sff_8247_a0 {
#define PRLI_PHASE(_cls) \
((_cls == DSC_LS_PRLI_PEND) || (_cls == DSC_LS_PRLI_COMP))
enum ql_vnd_host_stat_action {
QLA_STOP = 0,
QLA_START,
QLA_CLEAR,
};
struct ql_vnd_mng_host_stats_param {
u32 stat_type;
enum ql_vnd_host_stat_action action;
} __packed;
struct ql_vnd_mng_host_stats_resp {
u32 status;
} __packed;
struct ql_vnd_stats_param {
u32 stat_type;
} __packed;
struct ql_vnd_tgt_stats_param {
s32 tgt_id;
u32 stat_type;
} __packed;
enum ql_vnd_host_port_action {
QLA_ENABLE = 0,
QLA_DISABLE,
};
struct ql_vnd_mng_host_port_param {
enum ql_vnd_host_port_action action;
} __packed;
struct ql_vnd_mng_host_port_resp {
u32 status;
} __packed;
struct ql_vnd_stat_entry {
u32 stat_type; /* Failure type */
u32 tgt_num; /* Target Num */
u64 cnt; /* Counter value */
} __packed;
struct ql_vnd_stats {
u64 entry_count; /* Num of entries */
u64 rservd;
struct ql_vnd_stat_entry entry[0]; /* Place holder of entries */
} __packed;
struct ql_vnd_host_stats_resp {
u32 status;
struct ql_vnd_stats stats;
} __packed;
struct ql_vnd_tgt_stats_resp {
u32 status;
struct ql_vnd_stats stats;
} __packed;
#include "qla_target.h"
#include "qla_gbl.h"
#include "qla_dbg.h"

23
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -945,4 +945,27 @@ extern void qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp);
/* nvme.c */
void qla_nvme_unregister_remote_port(struct fc_port *fcport);
void qla_handle_els_plogi_done(scsi_qla_host_t *vha, struct event_arg *ea);
#define QLA2XX_HW_ERROR BIT_0
#define QLA2XX_SHT_LNK_DWN BIT_1
#define QLA2XX_INT_ERR BIT_2
#define QLA2XX_CMD_TIMEOUT BIT_3
#define QLA2XX_RESET_CMD_ERR BIT_4
#define QLA2XX_TGT_SHT_LNK_DOWN BIT_17
#define QLA2XX_MAX_LINK_DOWN_TIME 100
int qla2xxx_start_stats(struct Scsi_Host *shost, u32 flags);
int qla2xxx_stop_stats(struct Scsi_Host *shost, u32 flags);
int qla2xxx_reset_stats(struct Scsi_Host *shost, u32 flags);
int qla2xxx_get_ini_stats(struct Scsi_Host *shost, u32 flags, void *data, u64 size);
int qla2xxx_get_tgt_stats(struct Scsi_Host *shost, u32 flags,
struct fc_rport *rport, void *data, u64 size);
int qla2xxx_disable_port(struct Scsi_Host *shost);
int qla2xxx_enable_port(struct Scsi_Host *shost);
uint64_t qla2x00_get_num_tgts(scsi_qla_host_t *vha);
uint64_t qla2x00_count_set_bits(u32 num);
#endif /* _QLA_GBL_H */

1
drivers/scsi/qla2xxx/qla_gs.c
View File

@ -3563,6 +3563,7 @@ login_logout:
__func__, __LINE__,
fcport->port_name);
fcport->tgt_link_down_time = 0;
qlt_schedule_sess_for_deletion(fcport);
continue;
}

216
drivers/scsi/qla2xxx/qla_init.c
View File

@ -4993,6 +4993,9 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
fcport->login_retry = vha->hw->login_retry_count;
fcport->chip_reset = vha->hw->base_qpair->chip_reset;
fcport->logout_on_delete = 1;
fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
fcport->tgt_short_link_down_cnt = 0;
fcport->dev_loss_tmo = 0;
if (!fcport->ct_desc.ct_sns) {
ql_log(ql_log_warn, vha, 0xd049,
@ -5490,6 +5493,7 @@ qla2x00_reg_remote_port(scsi_qla_host_t *vha, fc_port_t *fcport)
spin_lock_irqsave(fcport->vha->host->host_lock, flags);
*((fc_port_t **)rport->dd_data) = fcport;
spin_unlock_irqrestore(fcport->vha->host->host_lock, flags);
fcport->dev_loss_tmo = rport->dev_loss_tmo;
rport->supported_classes = fcport->supported_classes;
@ -5548,6 +5552,11 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
fcport->logout_on_delete = 1;
fcport->n2n_chip_reset = fcport->n2n_link_reset_cnt = 0;
if (fcport->tgt_link_down_time < fcport->dev_loss_tmo) {
fcport->tgt_short_link_down_cnt++;
fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
}
switch (vha->hw->current_topology) {
case ISP_CFG_N:
case ISP_CFG_NL:
@ -6908,6 +6917,9 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
if (vha->flags.online) {
qla2x00_abort_isp_cleanup(vha);
if (vha->hw->flags.port_isolated)
return status;
if (test_and_clear_bit(ISP_ABORT_TO_ROM, &vha->dpc_flags)) {
ha->flags.chip_reset_done = 1;
vha->flags.online = 1;
@ -7029,6 +7041,11 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
}
if (vha->hw->flags.port_isolated) {
qla2x00_abort_isp_cleanup(vha);
return status;
}
if (!status) {
ql_dbg(ql_dbg_taskm, vha, 0x8022, "%s succeeded.\n", __func__);
qla2x00_configure_hba(vha);
@ -9171,3 +9188,202 @@ int qla2xxx_delete_qpair(struct scsi_qla_host *vha, struct qla_qpair *qpair)
fail:
return ret;
}
uint64_t
qla2x00_count_set_bits(uint32_t num)
{
/* Brian Kernighan's Algorithm */
u64 count = 0;
while (num) {
num &= (num - 1);
count++;
}
return count;
}
uint64_t
qla2x00_get_num_tgts(scsi_qla_host_t *vha)
{
fc_port_t *f, *tf;
u64 count = 0;
f = NULL;
tf = NULL;
list_for_each_entry_safe(f, tf, &vha->vp_fcports, list) {
if (f->port_type != FCT_TARGET)
continue;
count++;
}
return count;
}
int qla2xxx_reset_stats(struct Scsi_Host *host, u32 flags)
{
scsi_qla_host_t *vha = shost_priv(host);
fc_port_t *fcport = NULL;
unsigned long int_flags;
if (flags & QLA2XX_HW_ERROR)
vha->hw_err_cnt = 0;
if (flags & QLA2XX_SHT_LNK_DWN)
vha->short_link_down_cnt = 0;
if (flags & QLA2XX_INT_ERR)
vha->interface_err_cnt = 0;
if (flags & QLA2XX_CMD_TIMEOUT)
vha->cmd_timeout_cnt = 0;
if (flags & QLA2XX_RESET_CMD_ERR)
vha->reset_cmd_err_cnt = 0;
if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
fcport->tgt_short_link_down_cnt = 0;
fcport->tgt_link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
}
vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
return 0;
}
int qla2xxx_start_stats(struct Scsi_Host *host, u32 flags)
{
return qla2xxx_reset_stats(host, flags);
}
int qla2xxx_stop_stats(struct Scsi_Host *host, u32 flags)
{
return qla2xxx_reset_stats(host, flags);
}
int qla2xxx_get_ini_stats(struct Scsi_Host *host, u32 flags,
void *data, u64 size)
{
scsi_qla_host_t *vha = shost_priv(host);
struct ql_vnd_host_stats_resp *resp = (struct ql_vnd_host_stats_resp *)data;
struct ql_vnd_stats *rsp_data = &resp->stats;
u64 ini_entry_count = 0;
u64 i = 0;
u64 entry_count = 0;
u64 num_tgt = 0;
u32 tmp_stat_type = 0;
fc_port_t *fcport = NULL;
unsigned long int_flags;
/* Copy stat type to work on it */
tmp_stat_type = flags;
if (tmp_stat_type & BIT_17) {
num_tgt = qla2x00_get_num_tgts(vha);
/* unset BIT_17 */
tmp_stat_type &= ~(1 << 17);
}
ini_entry_count = qla2x00_count_set_bits(tmp_stat_type);
entry_count = ini_entry_count + num_tgt;
rsp_data->entry_count = entry_count;
i = 0;
if (flags & QLA2XX_HW_ERROR) {
rsp_data->entry[i].stat_type = QLA2XX_HW_ERROR;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->hw_err_cnt;
i++;
}
if (flags & QLA2XX_SHT_LNK_DWN) {
rsp_data->entry[i].stat_type = QLA2XX_SHT_LNK_DWN;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->short_link_down_cnt;
i++;
}
if (flags & QLA2XX_INT_ERR) {
rsp_data->entry[i].stat_type = QLA2XX_INT_ERR;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->interface_err_cnt;
i++;
}
if (flags & QLA2XX_CMD_TIMEOUT) {
rsp_data->entry[i].stat_type = QLA2XX_CMD_TIMEOUT;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->cmd_timeout_cnt;
i++;
}
if (flags & QLA2XX_RESET_CMD_ERR) {
rsp_data->entry[i].stat_type = QLA2XX_RESET_CMD_ERR;
rsp_data->entry[i].tgt_num = 0x0;
rsp_data->entry[i].cnt = vha->reset_cmd_err_cnt;
i++;
}
/* i will continue from previous loop, as target
* entries are after initiator
*/
if (flags & QLA2XX_TGT_SHT_LNK_DOWN) {
spin_lock_irqsave(&vha->hw->tgt.sess_lock, int_flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->port_type != FCT_TARGET)
continue;
if (!fcport->rport)
continue;
rsp_data->entry[i].stat_type = QLA2XX_TGT_SHT_LNK_DOWN;
rsp_data->entry[i].tgt_num = fcport->rport->number;
rsp_data->entry[i].cnt = fcport->tgt_short_link_down_cnt;
i++;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, int_flags);
}
resp->status = EXT_STATUS_OK;
return 0;
}
int qla2xxx_get_tgt_stats(struct Scsi_Host *host, u32 flags,
struct fc_rport *rport, void *data, u64 size)
{
struct ql_vnd_tgt_stats_resp *tgt_data = data;
fc_port_t *fcport = *(fc_port_t **)rport->dd_data;
tgt_data->status = 0;
tgt_data->stats.entry_count = 1;
tgt_data->stats.entry[0].stat_type = flags;
tgt_data->stats.entry[0].tgt_num = rport->number;
tgt_data->stats.entry[0].cnt = fcport->tgt_short_link_down_cnt;
return 0;
}
int qla2xxx_disable_port(struct Scsi_Host *host)
{
scsi_qla_host_t *vha = shost_priv(host);
vha->hw->flags.port_isolated = 1;
if (qla2x00_chip_is_down(vha))
return 0;
if (vha->flags.online) {
qla2x00_abort_isp_cleanup(vha);
qla2x00_wait_for_sess_deletion(vha);
}
return 0;
}
int qla2xxx_enable_port(struct Scsi_Host *host)
{
scsi_qla_host_t *vha = shost_priv(host);
vha->hw->flags.port_isolated = 0;
/* Set the flag to 1, so that isp_abort can proceed */
vha->flags.online = 1;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
return 0;
}

22
drivers/scsi/qla2xxx/qla_isr.c
View File

@ -1059,6 +1059,9 @@ skip_rio:
case MBA_SYSTEM_ERR: /* System Error */
mbx = 0;
vha->hw_err_cnt++;
if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
u16 m[4];
@ -1112,6 +1115,8 @@ skip_rio:
ql_log(ql_log_warn, vha, 0x5006,
"ISP Request Transfer Error (%x).\n", mb[1]);
vha->hw_err_cnt++;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
@ -1119,6 +1124,8 @@ skip_rio:
ql_log(ql_log_warn, vha, 0x5007,
"ISP Response Transfer Error (%x).\n", mb[1]);
vha->hw_err_cnt++;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
break;
@ -1176,12 +1183,18 @@ skip_rio:
vha->flags.management_server_logged_in = 0;
qla2x00_post_aen_work(vha, FCH_EVT_LINKUP, ha->link_data_rate);
if (vha->link_down_time < vha->hw->port_down_retry_count) {
vha->short_link_down_cnt++;
vha->link_down_time = QLA2XX_MAX_LINK_DOWN_TIME;
}
break;
case MBA_LOOP_DOWN: /* Loop Down Event */
SAVE_TOPO(ha);
ha->flags.lip_ae = 0;
ha->current_topology = 0;
vha->link_down_time = 0;
mbx = (IS_QLA81XX(ha) || IS_QLA8031(ha))
? rd_reg_word(&reg24->mailbox4) : 0;
@ -1503,6 +1516,7 @@ global_port_update:
ql_dbg(ql_dbg_async, vha, 0x5016,
"Discard RND Frame -- %04x %04x %04x.\n",
mb[1], mb[2], mb[3]);
vha->interface_err_cnt++;
break;
case MBA_TRACE_NOTIFICATION:
@ -1592,6 +1606,7 @@ global_port_update:
case MBA_IDC_AEN:
if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
vha->hw_err_cnt++;
qla27xx_handle_8200_aen(vha, mb);
} else if (IS_QLA83XX(ha)) {
mb[4] = rd_reg_word(&reg24->mailbox4);
@ -3101,6 +3116,8 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
"Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
vha->interface_err_cnt++;
res = DID_ERROR << 16 | lscsi_status;
goto check_scsi_status;
}
@ -3126,6 +3143,8 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
"Dropped frame(s) detected (0x%x of 0x%x bytes).\n",
resid, scsi_bufflen(cp));
vha->interface_err_cnt++;
res = DID_ERROR << 16 | lscsi_status;
goto check_scsi_status;
} else {
@ -3208,6 +3227,7 @@ check_scsi_status:
case CS_TRANSPORT:
res = DID_ERROR << 16;
vha->hw_err_cnt++;
if (!IS_PI_SPLIT_DET_CAPABLE(ha))
break;
@ -3228,6 +3248,7 @@ check_scsi_status:
ql_dump_buffer(ql_dbg_tgt + ql_dbg_verbose, vha, 0xe0ee,
pkt, sizeof(*sts24));
res = DID_ERROR << 16;
vha->hw_err_cnt++;
break;
default:
res = DID_ERROR << 16;
@ -3839,6 +3860,7 @@ qla24xx_msix_default(int irq, void *dev_id)
hccr);
qla2xxx_check_risc_status(vha);
vha->hw_err_cnt++;
ha->isp_ops->fw_dump(vha);
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);

9
drivers/scsi/qla2xxx/qla_mbx.c
View File

@ -180,6 +180,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
ql_log(ql_log_warn, vha, 0xd035,
"Cmd access timeout, cmd=0x%x, Exiting.\n",
mcp->mb[0]);
vha->hw_err_cnt++;
atomic_dec(&ha->num_pend_mbx_stage1);
return QLA_FUNCTION_TIMEOUT;
}
@ -307,6 +308,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
atomic_dec(&ha->num_pend_mbx_stage2);
ql_dbg(ql_dbg_mbx, vha, 0x1012,
"Pending mailbox timeout, exiting.\n");
vha->hw_err_cnt++;
rval = QLA_FUNCTION_TIMEOUT;
goto premature_exit;
}
@ -418,6 +420,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
"mb[0-3]=[0x%x 0x%x 0x%x 0x%x] mb7 0x%x host_status 0x%x hccr 0x%x\n",
command, ictrl, jiffies, mb[0], mb[1], mb[2], mb[3],
mb[7], host_status, hccr);
vha->hw_err_cnt++;
} else {
mb[0] = RD_MAILBOX_REG(ha, &reg->isp, 0);
@ -425,6 +428,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
ql_dbg(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1119,
"MBX Command timeout for cmd %x, iocontrol=%x jiffies=%lx "
"mb[0]=0x%x\n", command, ictrl, jiffies, mb[0]);
vha->hw_err_cnt++;
}
ql_dump_regs(ql_dbg_mbx + ql_dbg_buffer, vha, 0x1019);
@ -497,6 +501,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
"mb[0]=0x%x, eeh_busy=0x%x. Scheduling ISP "
"abort.\n", command, mcp->mb[0],
ha->flags.eeh_busy);
vha->hw_err_cnt++;
set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
qla2xxx_wake_dpc(vha);
}
@ -521,6 +526,7 @@ qla2x00_mailbox_command(scsi_qla_host_t *vha, mbx_cmd_t *mcp)
"Mailbox cmd timeout occurred, cmd=0x%x, "
"mb[0]=0x%x. Scheduling ISP abort ",
command, mcp->mb[0]);
vha->hw_err_cnt++;
set_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags);
clear_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
/* Allow next mbx cmd to come in. */
@ -625,6 +631,7 @@ qla2x00_load_ram(scsi_qla_host_t *vha, dma_addr_t req_dma, uint32_t risc_addr,
ql_dbg(ql_dbg_mbx, vha, 0x1023,
"Failed=%x mb[0]=%x mb[1]=%x.\n",
rval, mcp->mb[0], mcp->mb[1]);
vha->hw_err_cnt++;
} else {
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1024,
"Done %s.\n", __func__);
@ -736,6 +743,7 @@ again:
ql_dbg(ql_dbg_mbx, vha, 0x1026,
"Failed=%x mb[0]=%x.\n", rval, mcp->mb[0]);
vha->hw_err_cnt++;
return rval;
}
@ -1313,6 +1321,7 @@ qla2x00_mbx_reg_test(scsi_qla_host_t *vha)
if (rval != QLA_SUCCESS) {
/*EMPTY*/
ql_dbg(ql_dbg_mbx, vha, 0x1033, "Failed=%x.\n", rval);
vha->hw_err_cnt++;
} else {
/*EMPTY*/
ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1034,

20
drivers/scsi/qla2xxx/qla_os.c
View File

@ -1274,6 +1274,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
sp = scsi_cmd_priv(cmd);
qpair = sp->qpair;
vha->cmd_timeout_cnt++;
if ((sp->fcport && sp->fcport->deleted) || !qpair)
return SUCCESS;
@ -1442,6 +1444,7 @@ eh_reset_failed:
"%s RESET FAILED: %s nexus=%ld:%d:%llu cmd=%p.\n", name,
reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
cmd);
vha->reset_cmd_err_cnt++;
return FAILED;
}
@ -3141,6 +3144,10 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
ha->mr.fcport.supported_classes = FC_COS_UNSPECIFIED;
ha->mr.fcport.scan_state = 1;
qla2xxx_reset_stats(host, QLA2XX_HW_ERROR | QLA2XX_SHT_LNK_DWN |
QLA2XX_INT_ERR | QLA2XX_CMD_TIMEOUT |
QLA2XX_RESET_CMD_ERR | QLA2XX_TGT_SHT_LNK_DOWN);
/* Set the SG table size based on ISP type */
if (!IS_FWI2_CAPABLE(ha)) {
if (IS_QLA2100(ha))
@ -5090,6 +5097,7 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e)
fcport->d_id = e->u.new_sess.id;
fcport->flags |= FCF_FABRIC_DEVICE;
fcport->fw_login_state = DSC_LS_PLOGI_PEND;
fcport->tgt_short_link_down_cnt = 0;
memcpy(fcport->port_name, e->u.new_sess.port_name,
WWN_SIZE);
@ -7061,6 +7069,8 @@ qla2x00_timer(struct timer_list *t)
uint16_t w;
struct qla_hw_data *ha = vha->hw;
struct req_que *req;
unsigned long flags;
fc_port_t *fcport = NULL;
if (ha->flags.eeh_busy) {
ql_dbg(ql_dbg_timer, vha, 0x6000,
@ -7092,6 +7102,16 @@ qla2x00_timer(struct timer_list *t)
if (!vha->vp_idx && IS_QLAFX00(ha))
qlafx00_timer_routine(vha);
if (vha->link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
vha->link_down_time++;
spin_lock_irqsave(&vha->hw->tgt.sess_lock, flags);
list_for_each_entry(fcport, &vha->vp_fcports, list) {
if (fcport->tgt_link_down_time < QLA2XX_MAX_LINK_DOWN_TIME)
fcport->tgt_link_down_time++;
}
spin_unlock_irqrestore(&vha->hw->tgt.sess_lock, flags);
/* Loop down handler. */
if (atomic_read(&vha->loop_down_timer) > 0 &&
!(test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags)) &&