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[SCSI] lpfc 8.2.8 v2 : Add statistical reporting control and additional fc vendor events

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Added support for new sysfs attributes: lpfc_stat_data_ctrl and
lpfc_max_scsicmpl_time. The attributes control statistical reporting
of io load.

Added support for new fc vendor events for error reporting.

Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
James Smart 2008-09-07 11:52:10 -04:00 committed by James Bottomley
parent 977b5a0af6
commit ea2151b4e1
18 changed files with 1207 additions and 15 deletions
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27
drivers/scsi/lpfc/lpfc.h
View File

@ -40,6 +40,8 @@ struct lpfc_sli2_slim;
#define LPFC_MIN_TGT_QDEPTH 100
#define LPFC_MAX_TGT_QDEPTH 0xFFFF
#define LPFC_MAX_BUCKET_COUNT 20 /* Maximum no. of buckets for stat data
collection. */
/*
* Following time intervals are used of adjusting SCSI device
* queue depths when there are driver resource error or Firmware
@ -381,6 +383,8 @@ struct lpfc_vport {
struct lpfc_debugfs_trc *disc_trc;
atomic_t disc_trc_cnt;
#endif
uint8_t stat_data_enabled;
uint8_t stat_data_blocked;
};
struct hbq_s {
@ -641,6 +645,17 @@ struct lpfc_hba {
uint32_t buffer_tag_count;
int wait_4_mlo_maint_flg;
wait_queue_head_t wait_4_mlo_m_q;
/* data structure used for latency data collection */
#define LPFC_NO_BUCKET 0
#define LPFC_LINEAR_BUCKET 1
#define LPFC_POWER2_BUCKET 2
uint8_t bucket_type;
uint32_t bucket_base;
uint32_t bucket_step;
/* Maximum number of events that can be outstanding at any time*/
#define LPFC_MAX_EVT_COUNT 512
atomic_t fast_event_count;
};
static inline struct Scsi_Host *
@ -699,15 +714,3 @@ lpfc_sli_read_hs(struct lpfc_hba *phba)
return;
}
#define FC_REG_DUMP_EVENT 0x10 /* Register for Dump events */
#define FC_REG_TEMPERATURE_EVENT 0x20 /* Register for temperature
event */
struct temp_event {
uint32_t event_type;
uint32_t event_code;
uint32_t data;
};
#define LPFC_CRIT_TEMP 0x1
#define LPFC_THRESHOLD_TEMP 0x2
#define LPFC_NORMAL_TEMP 0x3

343
drivers/scsi/lpfc/lpfc_attr.c
View File

@ -32,6 +32,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
@ -2183,6 +2184,335 @@ lpfc_param_store(topology)
static DEVICE_ATTR(lpfc_topology, S_IRUGO | S_IWUSR,
lpfc_topology_show, lpfc_topology_store);
/**
* lpfc_stat_data_ctrl_store: write call back for lpfc_stat_data_ctrl
* sysfs file.
* @dev: Pointer to class device.
* @buf: Data buffer.
* @count: Size of the data buffer.
*
* This function get called when an user write to the lpfc_stat_data_ctrl
* sysfs file. This function parse the command written to the sysfs file
* and take appropriate action. These commands are used for controlling
* driver statistical data collection.
* Following are the command this function handles.
*
* setbucket <bucket_type> <base> <step>
* = Set the latency buckets.
* destroybucket = destroy all the buckets.
* start = start data collection
* stop = stop data collection
* reset = reset the collected data
**/
static ssize_t
lpfc_stat_data_ctrl_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
#define LPFC_MAX_DATA_CTRL_LEN 1024
static char bucket_data[LPFC_MAX_DATA_CTRL_LEN];
unsigned long i;
char *str_ptr, *token;
struct lpfc_vport **vports;
struct Scsi_Host *v_shost;
char *bucket_type_str, *base_str, *step_str;
unsigned long base, step, bucket_type;
if (!strncmp(buf, "setbucket", strlen("setbucket"))) {
if (strlen(buf) > LPFC_MAX_DATA_CTRL_LEN)
return -EINVAL;
strcpy(bucket_data, buf);
str_ptr = &bucket_data[0];
/* Ignore this token - this is command token */
token = strsep(&str_ptr, "\t ");
if (!token)
return -EINVAL;
bucket_type_str = strsep(&str_ptr, "\t ");
if (!bucket_type_str)
return -EINVAL;
if (!strncmp(bucket_type_str, "linear", strlen("linear")))
bucket_type = LPFC_LINEAR_BUCKET;
else if (!strncmp(bucket_type_str, "power2", strlen("power2")))
bucket_type = LPFC_POWER2_BUCKET;
else
return -EINVAL;
base_str = strsep(&str_ptr, "\t ");
if (!base_str)
return -EINVAL;
base = simple_strtoul(base_str, NULL, 0);
step_str = strsep(&str_ptr, "\t ");
if (!step_str)
return -EINVAL;
step = simple_strtoul(step_str, NULL, 0);
if (!step)
return -EINVAL;
/* Block the data collection for every vport */
vports = lpfc_create_vport_work_array(phba);
if (vports == NULL)
return -ENOMEM;
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
v_shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(v_shost->host_lock);
/* Block and reset data collection */
vports[i]->stat_data_blocked = 1;
if (vports[i]->stat_data_enabled)
lpfc_vport_reset_stat_data(vports[i]);
spin_unlock_irq(v_shost->host_lock);
}
/* Set the bucket attributes */
phba->bucket_type = bucket_type;
phba->bucket_base = base;
phba->bucket_step = step;
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
v_shost = lpfc_shost_from_vport(vports[i]);
/* Unblock data collection */
spin_lock_irq(v_shost->host_lock);
vports[i]->stat_data_blocked = 0;
spin_unlock_irq(v_shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
return strlen(buf);
}
if (!strncmp(buf, "destroybucket", strlen("destroybucket"))) {
vports = lpfc_create_vport_work_array(phba);
if (vports == NULL)
return -ENOMEM;
for (i = 0; i <= phba->max_vpi && vports[i] != NULL; i++) {
v_shost = lpfc_shost_from_vport(vports[i]);
spin_lock_irq(shost->host_lock);
vports[i]->stat_data_blocked = 1;
lpfc_free_bucket(vport);
vport->stat_data_enabled = 0;
vports[i]->stat_data_blocked = 0;
spin_unlock_irq(shost->host_lock);
}
lpfc_destroy_vport_work_array(phba, vports);
phba->bucket_type = LPFC_NO_BUCKET;
phba->bucket_base = 0;
phba->bucket_step = 0;
return strlen(buf);
}
if (!strncmp(buf, "start", strlen("start"))) {
/* If no buckets configured return error */
if (phba->bucket_type == LPFC_NO_BUCKET)
return -EINVAL;
spin_lock_irq(shost->host_lock);
if (vport->stat_data_enabled) {
spin_unlock_irq(shost->host_lock);
return strlen(buf);
}
lpfc_alloc_bucket(vport);
vport->stat_data_enabled = 1;
spin_unlock_irq(shost->host_lock);
return strlen(buf);
}
if (!strncmp(buf, "stop", strlen("stop"))) {
spin_lock_irq(shost->host_lock);
if (vport->stat_data_enabled == 0) {
spin_unlock_irq(shost->host_lock);
return strlen(buf);
}
lpfc_free_bucket(vport);
vport->stat_data_enabled = 0;
spin_unlock_irq(shost->host_lock);
return strlen(buf);
}
if (!strncmp(buf, "reset", strlen("reset"))) {
if ((phba->bucket_type == LPFC_NO_BUCKET)
|| !vport->stat_data_enabled)
return strlen(buf);
spin_lock_irq(shost->host_lock);
vport->stat_data_blocked = 1;
lpfc_vport_reset_stat_data(vport);
vport->stat_data_blocked = 0;
spin_unlock_irq(shost->host_lock);
return strlen(buf);
}
return -EINVAL;
}
/**
* lpfc_stat_data_ctrl_show: Read callback function for
* lpfc_stat_data_ctrl sysfs file.
* @dev: Pointer to class device object.
* @buf: Data buffer.
*
* This function is the read call back function for
* lpfc_stat_data_ctrl sysfs file. This function report the
* current statistical data collection state.
**/
static ssize_t
lpfc_stat_data_ctrl_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int index = 0;
int i;
char *bucket_type;
unsigned long bucket_value;
switch (phba->bucket_type) {
case LPFC_LINEAR_BUCKET:
bucket_type = "linear";
break;
case LPFC_POWER2_BUCKET:
bucket_type = "power2";
break;
default:
bucket_type = "No Bucket";
break;
}
sprintf(&buf[index], "Statistical Data enabled :%d, "
"blocked :%d, Bucket type :%s, Bucket base :%d,"
" Bucket step :%d\nLatency Ranges :",
vport->stat_data_enabled, vport->stat_data_blocked,
bucket_type, phba->bucket_base, phba->bucket_step);
index = strlen(buf);
if (phba->bucket_type != LPFC_NO_BUCKET) {
for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
if (phba->bucket_type == LPFC_LINEAR_BUCKET)
bucket_value = phba->bucket_base +
phba->bucket_step * i;
else
bucket_value = phba->bucket_base +
(1 << i) * phba->bucket_step;
if (index + 10 > PAGE_SIZE)
break;
sprintf(&buf[index], "%08ld ", bucket_value);
index = strlen(buf);
}
}
sprintf(&buf[index], "\n");
return strlen(buf);
}
/*
* Sysfs attribute to control the statistical data collection.
*/
static DEVICE_ATTR(lpfc_stat_data_ctrl, S_IRUGO | S_IWUSR,
lpfc_stat_data_ctrl_show, lpfc_stat_data_ctrl_store);
/*
* lpfc_drvr_stat_data: sysfs attr to get driver statistical data.
*/
/*
* Each Bucket takes 11 characters and 1 new line + 17 bytes WWN
* for each target.
*/
#define STAT_DATA_SIZE_PER_TARGET(NUM_BUCKETS) ((NUM_BUCKETS) * 11 + 18)
#define MAX_STAT_DATA_SIZE_PER_TARGET \
STAT_DATA_SIZE_PER_TARGET(LPFC_MAX_BUCKET_COUNT)
/**
* sysfs_drvr_stat_data_read: Read callback function for lpfc_drvr_stat_data
* sysfs attribute.
* @kobj: Pointer to the kernel object
* @bin_attr: Attribute object
* @buff: Buffer pointer
* @off: File offset
* @count: Buffer size
*
* This function is the read call back function for lpfc_drvr_stat_data
* sysfs file. This function export the statistical data to user
* applications.
**/
static ssize_t
sysfs_drvr_stat_data_read(struct kobject *kobj, struct bin_attribute *bin_attr,
char *buf, loff_t off, size_t count)
{
struct device *dev = container_of(kobj, struct device,
kobj);
struct Scsi_Host *shost = class_to_shost(dev);
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
struct lpfc_hba *phba = vport->phba;
int i = 0, index = 0;
unsigned long nport_index;
struct lpfc_nodelist *ndlp = NULL;
nport_index = (unsigned long)off /
MAX_STAT_DATA_SIZE_PER_TARGET;
if (!vport->stat_data_enabled || vport->stat_data_blocked
|| (phba->bucket_type == LPFC_NO_BUCKET))
return 0;
spin_lock_irq(shost->host_lock);
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp) || !ndlp->lat_data)
continue;
if (nport_index > 0) {
nport_index--;
continue;
}
if ((index + MAX_STAT_DATA_SIZE_PER_TARGET)
> count)
break;
if (!ndlp->lat_data)
continue;
/* Print the WWN */
sprintf(&buf[index], "%02x%02x%02x%02x%02x%02x%02x%02x:",
ndlp->nlp_portname.u.wwn[0],
ndlp->nlp_portname.u.wwn[1],
ndlp->nlp_portname.u.wwn[2],
ndlp->nlp_portname.u.wwn[3],
ndlp->nlp_portname.u.wwn[4],
ndlp->nlp_portname.u.wwn[5],
ndlp->nlp_portname.u.wwn[6],
ndlp->nlp_portname.u.wwn[7]);
index = strlen(buf);
for (i = 0; i < LPFC_MAX_BUCKET_COUNT; i++) {
sprintf(&buf[index], "%010u,",
ndlp->lat_data[i].cmd_count);
index = strlen(buf);
}
sprintf(&buf[index], "\n");
index = strlen(buf);
}
spin_unlock_irq(shost->host_lock);
return index;
}
static struct bin_attribute sysfs_drvr_stat_data_attr = {
.attr = {
.name = "lpfc_drvr_stat_data",
.mode = S_IRUSR,
.owner = THIS_MODULE,
},
.size = LPFC_MAX_TARGET * MAX_STAT_DATA_SIZE_PER_TARGET,
.read = sysfs_drvr_stat_data_read,
.write = NULL,
};
/*
# lpfc_link_speed: Link speed selection for initializing the Fibre Channel
# connection.
@ -2502,6 +2832,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_enable_hba_heartbeat,
&dev_attr_lpfc_sg_seg_cnt,
&dev_attr_lpfc_max_scsicmpl_time,
&dev_attr_lpfc_stat_data_ctrl,
NULL,
};
@ -2524,6 +2855,8 @@ struct device_attribute *lpfc_vport_attrs[] = {
&dev_attr_nport_evt_cnt,
&dev_attr_npiv_info,
&dev_attr_lpfc_enable_da_id,
&dev_attr_lpfc_max_scsicmpl_time,
&dev_attr_lpfc_stat_data_ctrl,
NULL,
};
@ -2958,7 +3291,14 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
if (error)
goto out_remove_ctlreg_attr;
error = sysfs_create_bin_file(&shost->shost_dev.kobj,
&sysfs_drvr_stat_data_attr);
if (error)
goto out_remove_mbox_attr;
return 0;
out_remove_mbox_attr:
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
out_remove_ctlreg_attr:
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
out:
@ -2973,7 +3313,8 @@ void
lpfc_free_sysfs_attr(struct lpfc_vport *vport)
{
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
sysfs_remove_bin_file(&shost->shost_dev.kobj,
&sysfs_drvr_stat_data_attr);
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_mbox_attr);
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
}

6
drivers/scsi/lpfc/lpfc_crtn.h
View File

@ -294,6 +294,12 @@ void lpfc_ramp_down_queue_handler(struct lpfc_hba *);
void lpfc_ramp_up_queue_handler(struct lpfc_hba *);
void lpfc_scsi_dev_block(struct lpfc_hba *);
void
lpfc_send_els_failure_event(struct lpfc_hba *, struct lpfc_iocbq *,
struct lpfc_iocbq *);
struct lpfc_fast_path_event *lpfc_alloc_fast_evt(struct lpfc_hba *);
void lpfc_free_fast_evt(struct lpfc_hba *, struct lpfc_fast_path_event *);
#define ScsiResult(host_code, scsi_code) (((host_code) << 16) | scsi_code)
#define HBA_EVENT_RSCN 5
#define HBA_EVENT_LINK_UP 2

1
drivers/scsi/lpfc/lpfc_ct.c
View File

@ -34,6 +34,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"

1
drivers/scsi/lpfc/lpfc_debugfs.c
View File

@ -35,6 +35,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"

20
drivers/scsi/lpfc/lpfc_disc.h
View File

@ -37,6 +37,7 @@ enum lpfc_work_type {
LPFC_EVT_KILL,
LPFC_EVT_ELS_RETRY,
LPFC_EVT_DEV_LOSS,
LPFC_EVT_FASTPATH_MGMT_EVT,
};
/* structure used to queue event to the discovery tasklet */
@ -47,6 +48,24 @@ struct lpfc_work_evt {
enum lpfc_work_type evt;
};
struct lpfc_scsi_check_condition_event;
struct lpfc_scsi_varqueuedepth_event;
struct lpfc_scsi_event_header;
struct lpfc_fabric_event_header;
struct lpfc_fcprdchkerr_event;
/* structure used for sending events from fast path */
struct lpfc_fast_path_event {
struct lpfc_work_evt work_evt;
struct lpfc_vport *vport;
union {
struct lpfc_scsi_check_condition_event check_cond_evt;
struct lpfc_scsi_varqueuedepth_event queue_depth_evt;
struct lpfc_scsi_event_header scsi_evt;
struct lpfc_fabric_event_header fabric_evt;
struct lpfc_fcprdchkerr_event read_check_error;
} un;
};
struct lpfc_nodelist {
struct list_head nlp_listp;
@ -91,6 +110,7 @@ struct lpfc_nodelist {
atomic_t cmd_pending;
uint32_t cmd_qdepth;
unsigned long last_change_time;
struct lpfc_scsicmd_bkt *lat_data; /* Latency data */
};
/* Defines for nlp_flag (uint32) */

114
drivers/scsi/lpfc/lpfc_els.c
View File

@ -30,6 +30,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
@ -5084,6 +5085,116 @@ lpfc_els_flush_all_cmd(struct lpfc_hba *phba)
return;
}
/**
* lpfc_send_els_failure_event: Posts an ELS command failure event.
* @phba: Pointer to hba context object.
* @cmdiocbp: Pointer to command iocb which reported error.
* @rspiocbp: Pointer to response iocb which reported error.
*
* This function sends an event when there is an ELS command
* failure.
**/
void
lpfc_send_els_failure_event(struct lpfc_hba *phba,
struct lpfc_iocbq *cmdiocbp,
struct lpfc_iocbq *rspiocbp)
{
struct lpfc_vport *vport = cmdiocbp->vport;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
struct lpfc_lsrjt_event lsrjt_event;
struct lpfc_fabric_event_header fabric_event;
struct ls_rjt stat;
struct lpfc_nodelist *ndlp;
uint32_t *pcmd;
ndlp = cmdiocbp->context1;
if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
return;
if (rspiocbp->iocb.ulpStatus == IOSTAT_LS_RJT) {
lsrjt_event.header.event_type = FC_REG_ELS_EVENT;
lsrjt_event.header.subcategory = LPFC_EVENT_LSRJT_RCV;
memcpy(lsrjt_event.header.wwpn, &ndlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(lsrjt_event.header.wwnn, &ndlp->nlp_nodename,
sizeof(struct lpfc_name));
pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
cmdiocbp->context2)->virt);
lsrjt_event.command = *pcmd;
stat.un.lsRjtError = be32_to_cpu(rspiocbp->iocb.un.ulpWord[4]);
lsrjt_event.reason_code = stat.un.b.lsRjtRsnCode;
lsrjt_event.explanation = stat.un.b.lsRjtRsnCodeExp;
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(lsrjt_event),
(char *)&lsrjt_event,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
return;
}
if ((rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY) ||
(rspiocbp->iocb.ulpStatus == IOSTAT_FABRIC_BSY)) {
fabric_event.event_type = FC_REG_FABRIC_EVENT;
if (rspiocbp->iocb.ulpStatus == IOSTAT_NPORT_BSY)
fabric_event.subcategory = LPFC_EVENT_PORT_BUSY;
else
fabric_event.subcategory = LPFC_EVENT_FABRIC_BUSY;
memcpy(fabric_event.wwpn, &ndlp->nlp_portname,
sizeof(struct lpfc_name));
memcpy(fabric_event.wwnn, &ndlp->nlp_nodename,
sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(fabric_event),
(char *)&fabric_event,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
return;
}
}
/**
* lpfc_send_els_event: Posts unsolicited els event.
* @vport: Pointer to vport object.
* @ndlp: Pointer FC node object.
* @cmd: ELS command code.
*
* This function posts an event when there is an incoming
* unsolicited ELS command.
**/
static void
lpfc_send_els_event(struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
uint32_t cmd)
{
struct lpfc_els_event_header els_data;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
els_data.event_type = FC_REG_ELS_EVENT;
switch (cmd) {
case ELS_CMD_PLOGI:
els_data.subcategory = LPFC_EVENT_PLOGI_RCV;
break;
case ELS_CMD_PRLO:
els_data.subcategory = LPFC_EVENT_PRLO_RCV;
break;
case ELS_CMD_ADISC:
els_data.subcategory = LPFC_EVENT_ADISC_RCV;
break;
default:
return;
}
memcpy(els_data.wwpn, &ndlp->nlp_portname, sizeof(struct lpfc_name));
memcpy(els_data.wwnn, &ndlp->nlp_nodename, sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(els_data),
(char *)&els_data,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
return;
}
/**
* lpfc_els_unsol_buffer: Process an unsolicited event data buffer.
* @phba: pointer to lpfc hba data structure.
@ -5185,6 +5296,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
phba->fc_stat.elsRcvPLOGI++;
ndlp = lpfc_plogi_confirm_nport(phba, payload, ndlp);
lpfc_send_els_event(vport, ndlp, cmd);
if (vport->port_state < LPFC_DISC_AUTH) {
if (!(phba->pport->fc_flag & FC_PT2PT) ||
(phba->pport->fc_flag & FC_PT2PT_PLOGI)) {
@ -5234,6 +5346,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
did, vport->port_state, ndlp->nlp_flag);
phba->fc_stat.elsRcvPRLO++;
lpfc_send_els_event(vport, ndlp, cmd);
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;
break;
@ -5251,6 +5364,7 @@ lpfc_els_unsol_buffer(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
"RCV ADISC: did:x%x/ste:x%x flg:x%x",
did, vport->port_state, ndlp->nlp_flag);
lpfc_send_els_event(vport, ndlp, cmd);
phba->fc_stat.elsRcvADISC++;
if (vport->port_state < LPFC_DISC_AUTH) {
rjt_err = LSRJT_UNABLE_TPC;

143
drivers/scsi/lpfc/lpfc_hbadisc.c
View File

@ -30,6 +30,7 @@
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_sli.h"
#include "lpfc_scsi.h"
@ -274,6 +275,124 @@ lpfc_dev_loss_tmo_handler(struct lpfc_nodelist *ndlp)
lpfc_disc_state_machine(vport, ndlp, NULL, NLP_EVT_DEVICE_RM);
}
/**
* lpfc_alloc_fast_evt: Allocates data structure for posting event.
* @phba: Pointer to hba context object.
*
* This function is called from the functions which need to post
* events from interrupt context. This function allocates data
* structure required for posting event. It also keeps track of
* number of events pending and prevent event storm when there are
* too many events.
**/
struct lpfc_fast_path_event *
lpfc_alloc_fast_evt(struct lpfc_hba *phba) {
struct lpfc_fast_path_event *ret;
/* If there are lot of fast event do not exhaust memory due to this */
if (atomic_read(&phba->fast_event_count) > LPFC_MAX_EVT_COUNT)
return NULL;
ret = kzalloc(sizeof(struct lpfc_fast_path_event),
GFP_ATOMIC);
if (ret)
atomic_inc(&phba->fast_event_count);
INIT_LIST_HEAD(&ret->work_evt.evt_listp);
ret->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
return ret;
}
/**
* lpfc_free_fast_evt: Frees event data structure.
* @phba: Pointer to hba context object.
* @evt: Event object which need to be freed.
*
* This function frees the data structure required for posting
* events.
**/
void
lpfc_free_fast_evt(struct lpfc_hba *phba,
struct lpfc_fast_path_event *evt) {
atomic_dec(&phba->fast_event_count);
kfree(evt);
}
/**
* lpfc_send_fastpath_evt: Posts events generated from fast path.
* @phba: Pointer to hba context object.
* @evtp: Event data structure.
*
* This function is called from worker thread, when the interrupt
* context need to post an event. This function posts the event
* to fc transport netlink interface.
**/
static void
lpfc_send_fastpath_evt(struct lpfc_hba *phba,
struct lpfc_work_evt *evtp)
{
unsigned long evt_category, evt_sub_category;
struct lpfc_fast_path_event *fast_evt_data;
char *evt_data;
uint32_t evt_data_size;
struct Scsi_Host *shost;
fast_evt_data = container_of(evtp, struct lpfc_fast_path_event,
work_evt);
evt_category = (unsigned long) fast_evt_data->un.fabric_evt.event_type;
evt_sub_category = (unsigned long) fast_evt_data->un.
fabric_evt.subcategory;
shost = lpfc_shost_from_vport(fast_evt_data->vport);
if (evt_category == FC_REG_FABRIC_EVENT) {
if (evt_sub_category == LPFC_EVENT_FCPRDCHKERR) {
evt_data = (char *) &fast_evt_data->un.read_check_error;
evt_data_size = sizeof(fast_evt_data->un.
read_check_error);
} else if ((evt_sub_category == LPFC_EVENT_FABRIC_BUSY) ||
(evt_sub_category == IOSTAT_NPORT_BSY)) {
evt_data = (char *) &fast_evt_data->un.fabric_evt;
evt_data_size = sizeof(fast_evt_data->un.fabric_evt);
} else {
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
} else if (evt_category == FC_REG_SCSI_EVENT) {
switch (evt_sub_category) {
case LPFC_EVENT_QFULL:
case LPFC_EVENT_DEVBSY:
evt_data = (char *) &fast_evt_data->un.scsi_evt;
evt_data_size = sizeof(fast_evt_data->un.scsi_evt);
break;
case LPFC_EVENT_CHECK_COND:
evt_data = (char *) &fast_evt_data->un.check_cond_evt;
evt_data_size = sizeof(fast_evt_data->un.
check_cond_evt);
break;
case LPFC_EVENT_VARQUEDEPTH:
evt_data = (char *) &fast_evt_data->un.queue_depth_evt;
evt_data_size = sizeof(fast_evt_data->un.
queue_depth_evt);
break;
default:
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
} else {
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
fc_host_post_vendor_event(shost,
fc_get_event_number(),
evt_data_size,
evt_data,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
lpfc_free_fast_evt(phba, fast_evt_data);
return;
}
static void
lpfc_work_list_done(struct lpfc_hba *phba)
{
@ -345,6 +464,10 @@ lpfc_work_list_done(struct lpfc_hba *phba)
lpfc_unblock_mgmt_io(phba);
complete((struct completion *)(evtp->evt_arg2));
break;
case LPFC_EVT_FASTPATH_MGMT_EVT:
lpfc_send_fastpath_evt(phba, evtp);
free_evt = 0;
break;
}
if (free_evt)
kfree(evtp);
@ -1601,6 +1724,22 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
*/
lpfc_register_remote_port(vport, ndlp);
}
if ((new_state == NLP_STE_MAPPED_NODE) &&
(vport->stat_data_enabled)) {
/*
* A new target is discovered, if there is no buffer for
* statistical data collection allocate buffer.
*/
ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
sizeof(struct lpfc_scsicmd_bkt),
GFP_KERNEL);
if (!ndlp->lat_data)
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
"0286 lpfc_nlp_state_cleanup failed to "
"allocate statistical data buffer DID "
"0x%x\n", ndlp->nlp_DID);
}
/*
* if we added to Mapped list, but the remote port
* registration failed or assigned a target id outside
@ -3029,8 +3168,10 @@ lpfc_nlp_release(struct kref *kref)
spin_unlock_irqrestore(&phba->ndlp_lock, flags);
/* free ndlp memory for final ndlp release */
if (NLP_CHK_FREE_REQ(ndlp))
if (NLP_CHK_FREE_REQ(ndlp)) {
kfree(ndlp->lat_data);
mempool_free(ndlp, ndlp->vport->phba->nlp_mem_pool);
}
}
/* This routine bumps the reference count for a ndlp structure to ensure

22
drivers/scsi/lpfc/lpfc_init.c
View File

@ -36,6 +36,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
@ -815,6 +816,7 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
unsigned long temperature;
struct temp_event temp_event_data;
struct Scsi_Host *shost;
struct lpfc_board_event_header board_event;
/* If the pci channel is offline, ignore possible errors,
* since we cannot communicate with the pci card anyway. */
@ -824,6 +826,16 @@ lpfc_handle_eratt(struct lpfc_hba *phba)
if (!phba->cfg_enable_hba_reset)
return;
/* Send an internal error event to mgmt application */
board_event.event_type = FC_REG_BOARD_EVENT;
board_event.subcategory = LPFC_EVENT_PORTINTERR;
shost = lpfc_shost_from_vport(phba->pport);
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(board_event),
(char *) &board_event,
SCSI_NL_VID_TYPE_PCI
| PCI_VENDOR_ID_EMULEX);
if (phba->work_hs & HS_FFER6) {
/* Re-establishing Link */
lpfc_printf_log(phba, KERN_INFO, LOG_LINK_EVENT,
@ -2345,6 +2357,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
int i, hbq_count;
uint16_t iotag;
int bars = pci_select_bars(pdev, IORESOURCE_MEM);
struct lpfc_adapter_event_header adapter_event;
if (pci_enable_device_mem(pdev))
goto out;
@ -2355,6 +2368,7 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
if (!phba)
goto out_release_regions;
atomic_set(&phba->fast_event_count, 0);
spin_lock_init(&phba->hbalock);
/* Initialize ndlp management spinlock */
@ -2626,6 +2640,14 @@ lpfc_pci_probe_one(struct pci_dev *pdev, const struct pci_device_id *pid)
lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
"0428 Perform SCSI scan\n");
/* Send board arrival event to upper layer */
adapter_event.event_type = FC_REG_ADAPTER_EVENT;
adapter_event.subcategory = LPFC_EVENT_ARRIVAL;
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(adapter_event),
(char *) &adapter_event,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
scsi_scan_host(shost);
return 0;

1
drivers/scsi/lpfc/lpfc_mbox.c
View File

@ -30,6 +30,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"

1
drivers/scsi/lpfc/lpfc_mem.c
View File

@ -30,6 +30,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"

163
drivers/scsi/lpfc/lpfc_nl.h Normal file
View File

@ -0,0 +1,163 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
* Copyright (C) 2008 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* *
* This program is free software; you can redistribute it and/or *
* modify it under the terms of version 2 of the GNU General *
* Public License as published by the Free Software Foundation. *
* This program is distributed in the hope that it will be useful. *
* ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
* WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
* DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
* TO BE LEGALLY INVALID. See the GNU General Public License for *
* more details, a copy of which can be found in the file COPYING *
* included with this package. *
*******************************************************************/
/* Event definitions for RegisterForEvent */
#define FC_REG_LINK_EVENT 0x0001 /* link up / down events */
#define FC_REG_RSCN_EVENT 0x0002 /* RSCN events */
#define FC_REG_CT_EVENT 0x0004 /* CT request events */
#define FC_REG_DUMP_EVENT 0x0008 /* Dump events */
#define FC_REG_TEMPERATURE_EVENT 0x0010 /* temperature events */
#define FC_REG_ELS_EVENT 0x0020 /* lpfc els events */
#define FC_REG_FABRIC_EVENT 0x0040 /* lpfc fabric events */
#define FC_REG_SCSI_EVENT 0x0080 /* lpfc scsi events */
#define FC_REG_BOARD_EVENT 0x0100 /* lpfc board events */
#define FC_REG_ADAPTER_EVENT 0x0200 /* lpfc adapter events */
#define FC_REG_EVENT_MASK (FC_REG_LINK_EVENT | \
FC_REG_RSCN_EVENT | \
FC_REG_CT_EVENT | \
FC_REG_DUMP_EVENT | \
FC_REG_TEMPERATURE_EVENT | \
FC_REG_ELS_EVENT | \
FC_REG_FABRIC_EVENT | \
FC_REG_SCSI_EVENT | \
FC_REG_BOARD_EVENT | \
FC_REG_ADAPTER_EVENT)
/* Temperature events */
#define LPFC_CRIT_TEMP 0x1
#define LPFC_THRESHOLD_TEMP 0x2
#define LPFC_NORMAL_TEMP 0x3
/*
* All net link event payloads will begin with and event type
* and subcategory. The event type must come first.
* The subcategory further defines the data that follows in the rest
* of the payload. Each category will have its own unique header plus
* any addtional data unique to the subcategory.
* The payload sent via the fc transport is one-way driver->application.
*/
/* els event header */
struct lpfc_els_event_header {
uint32_t event_type;
uint32_t subcategory;
uint8_t wwpn[8];
uint8_t wwnn[8];
};
/* subcategory codes for FC_REG_ELS_EVENT */
#define LPFC_EVENT_PLOGI_RCV 0x01
#define LPFC_EVENT_PRLO_RCV 0x02
#define LPFC_EVENT_ADISC_RCV 0x04
#define LPFC_EVENT_LSRJT_RCV 0x08
/* special els lsrjt event */
struct lpfc_lsrjt_event {
struct lpfc_els_event_header header;
uint32_t command;
uint32_t reason_code;
uint32_t explanation;
};
/* fabric event header */
struct lpfc_fabric_event_header {
uint32_t event_type;
uint32_t subcategory;
uint8_t wwpn[8];
uint8_t wwnn[8];
};
/* subcategory codes for FC_REG_FABRIC_EVENT */
#define LPFC_EVENT_FABRIC_BUSY 0x01
#define LPFC_EVENT_PORT_BUSY 0x02
#define LPFC_EVENT_FCPRDCHKERR 0x04
/* special case fabric fcprdchkerr event */
struct lpfc_fcprdchkerr_event {
struct lpfc_fabric_event_header header;
uint32_t lun;
uint32_t opcode;
uint32_t fcpiparam;
};
/* scsi event header */
struct lpfc_scsi_event_header {
uint32_t event_type;
uint32_t subcategory;
uint32_t lun;
uint8_t wwpn[8];
uint8_t wwnn[8];
};
/* subcategory codes for FC_REG_SCSI_EVENT */
#define LPFC_EVENT_QFULL 0x0001
#define LPFC_EVENT_DEVBSY 0x0002
#define LPFC_EVENT_CHECK_COND 0x0004
#define LPFC_EVENT_LUNRESET 0x0008
#define LPFC_EVENT_TGTRESET 0x0010
#define LPFC_EVENT_BUSRESET 0x0020
#define LPFC_EVENT_VARQUEDEPTH 0x0040
/* special case scsi varqueuedepth event */
struct lpfc_scsi_varqueuedepth_event {
struct lpfc_scsi_event_header scsi_event;
uint32_t oldval;
uint32_t newval;
};
/* special case scsi check condition event */
struct lpfc_scsi_check_condition_event {
struct lpfc_scsi_event_header scsi_event;
uint8_t sense_key;
uint8_t asc;
uint8_t ascq;
};
/* event codes for FC_REG_BOARD_EVENT */
#define LPFC_EVENT_PORTINTERR 0x01
/* board event header */
struct lpfc_board_event_header {
uint32_t event_type;
uint32_t subcategory;
};
/* event codes for FC_REG_ADAPTER_EVENT */
#define LPFC_EVENT_ARRIVAL 0x01
/* adapter event header */
struct lpfc_adapter_event_header {
uint32_t event_type;
uint32_t subcategory;
};
/* event codes for temp_event */
#define LPFC_CRIT_TEMP 0x1
#define LPFC_THRESHOLD_TEMP 0x2
#define LPFC_NORMAL_TEMP 0x3
struct temp_event {
uint32_t event_type;
uint32_t event_code;
uint32_t data;
};

1
drivers/scsi/lpfc/lpfc_nportdisc.c
View File

@ -30,6 +30,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"

279
drivers/scsi/lpfc/lpfc_scsi.c
View File

@ -32,6 +32,7 @@
#include "lpfc_version.h"
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
@ -42,6 +43,111 @@
#define LPFC_RESET_WAIT 2
#define LPFC_ABORT_WAIT 2
/**
* lpfc_update_stats: Update statistical data for the command completion.
* @phba: Pointer to HBA object.
* @lpfc_cmd: lpfc scsi command object pointer.
*
* This function is called when there is a command completion and this
* function updates the statistical data for the command completion.
**/
static void
lpfc_update_stats(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
{
struct lpfc_rport_data *rdata = lpfc_cmd->rdata;
struct lpfc_nodelist *pnode = rdata->pnode;
struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
unsigned long flags;
struct Scsi_Host *shost = cmd->device->host;
struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
unsigned long latency;
int i;
if (cmd->result)
return;
spin_lock_irqsave(shost->host_lock, flags);
if (!vport->stat_data_enabled ||
vport->stat_data_blocked ||
!pnode->lat_data ||
(phba->bucket_type == LPFC_NO_BUCKET)) {
spin_unlock_irqrestore(shost->host_lock, flags);
return;
}
latency = jiffies_to_msecs(jiffies - lpfc_cmd->start_time);
if (phba->bucket_type == LPFC_LINEAR_BUCKET) {
i = (latency + phba->bucket_step - 1 - phba->bucket_base)/
phba->bucket_step;
if (i >= LPFC_MAX_BUCKET_COUNT)
i = LPFC_MAX_BUCKET_COUNT;
} else {
for (i = 0; i < LPFC_MAX_BUCKET_COUNT-1; i++)
if (latency <= (phba->bucket_base +
((1<<i)*phba->bucket_step)))
break;
}
pnode->lat_data[i].cmd_count++;
spin_unlock_irqrestore(shost->host_lock, flags);
}
/**
* lpfc_send_sdev_queuedepth_change_event: Posts a queuedepth change
* event.
* @phba: Pointer to HBA context object.
* @vport: Pointer to vport object.
* @ndlp: Pointer to FC node associated with the target.
* @lun: Lun number of the scsi device.
* @old_val: Old value of the queue depth.
* @new_val: New value of the queue depth.
*
* This function sends an event to the mgmt application indicating
* there is a change in the scsi device queue depth.
**/
static void
lpfc_send_sdev_queuedepth_change_event(struct lpfc_hba *phba,
struct lpfc_vport *vport,
struct lpfc_nodelist *ndlp,
uint32_t lun,
uint32_t old_val,
uint32_t new_val)
{
struct lpfc_fast_path_event *fast_path_evt;
unsigned long flags;
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.queue_depth_evt.scsi_event.event_type =
FC_REG_SCSI_EVENT;
fast_path_evt->un.queue_depth_evt.scsi_event.subcategory =
LPFC_EVENT_VARQUEDEPTH;
/* Report all luns with change in queue depth */
fast_path_evt->un.queue_depth_evt.scsi_event.lun = lun;
if (ndlp && NLP_CHK_NODE_ACT(ndlp)) {
memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwpn,
&ndlp->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.queue_depth_evt.scsi_event.wwnn,
&ndlp->nlp_nodename, sizeof(struct lpfc_name));
}
fast_path_evt->un.queue_depth_evt.oldval = old_val;
fast_path_evt->un.queue_depth_evt.newval = new_val;
fast_path_evt->vport = vport;
fast_path_evt->work_evt.evt = LPFC_EVT_FASTPATH_MGMT_EVT;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
return;
}
/*
* This function is called with no lock held when there is a resource
* error in driver or in firmware.
@ -117,9 +223,10 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
struct lpfc_vport **vports;
struct Scsi_Host *shost;
struct scsi_device *sdev;
unsigned long new_queue_depth;
unsigned long new_queue_depth, old_queue_depth;
unsigned long num_rsrc_err, num_cmd_success;
int i;
struct lpfc_rport_data *rdata;
num_rsrc_err = atomic_read(&phba->num_rsrc_err);
num_cmd_success = atomic_read(&phba->num_cmd_success);
@ -137,6 +244,7 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
else
new_queue_depth = sdev->queue_depth -
new_queue_depth;
old_queue_depth = sdev->queue_depth;
if (sdev->ordered_tags)
scsi_adjust_queue_depth(sdev,
MSG_ORDERED_TAG,
@ -145,6 +253,13 @@ lpfc_ramp_down_queue_handler(struct lpfc_hba *phba)
scsi_adjust_queue_depth(sdev,
MSG_SIMPLE_TAG,
new_queue_depth);
rdata = sdev->hostdata;
if (rdata)
lpfc_send_sdev_queuedepth_change_event(
phba, vports[i],
rdata->pnode,
sdev->lun, old_queue_depth,
new_queue_depth);
}
}
lpfc_destroy_vport_work_array(phba, vports);
@ -159,6 +274,7 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
struct Scsi_Host *shost;
struct scsi_device *sdev;
int i;
struct lpfc_rport_data *rdata;
vports = lpfc_create_vport_work_array(phba);
if (vports != NULL)
@ -176,6 +292,14 @@ lpfc_ramp_up_queue_handler(struct lpfc_hba *phba)
scsi_adjust_queue_depth(sdev,
MSG_SIMPLE_TAG,
sdev->queue_depth+1);
rdata = sdev->hostdata;
if (rdata)
lpfc_send_sdev_queuedepth_change_event(
phba, vports[i],
rdata->pnode,
sdev->lun,
sdev->queue_depth - 1,
sdev->queue_depth);
}
}
lpfc_destroy_vport_work_array(phba, vports);
@ -466,6 +590,97 @@ lpfc_scsi_prep_dma_buf(struct lpfc_hba *phba, struct lpfc_scsi_buf *lpfc_cmd)
return 0;
}
/**
* lpfc_send_scsi_error_event: Posts an event when there is SCSI error.
* @phba: Pointer to hba context object.
* @vport: Pointer to vport object.
* @lpfc_cmd: Pointer to lpfc scsi command which reported the error.
* @rsp_iocb: Pointer to response iocb object which reported error.
*
* This function posts an event when there is a SCSI command reporting
* error from the scsi device.
**/
static void
lpfc_send_scsi_error_event(struct lpfc_hba *phba, struct lpfc_vport *vport,
struct lpfc_scsi_buf *lpfc_cmd, struct lpfc_iocbq *rsp_iocb) {
struct scsi_cmnd *cmnd = lpfc_cmd->pCmd;
struct fcp_rsp *fcprsp = lpfc_cmd->fcp_rsp;
uint32_t resp_info = fcprsp->rspStatus2;
uint32_t scsi_status = fcprsp->rspStatus3;
uint32_t fcpi_parm = rsp_iocb->iocb.un.fcpi.fcpi_parm;
struct lpfc_fast_path_event *fast_path_evt = NULL;
struct lpfc_nodelist *pnode = lpfc_cmd->rdata->pnode;
unsigned long flags;
/* If there is queuefull or busy condition send a scsi event */
if ((cmnd->result == SAM_STAT_TASK_SET_FULL) ||
(cmnd->result == SAM_STAT_BUSY)) {
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.scsi_evt.event_type =
FC_REG_SCSI_EVENT;
fast_path_evt->un.scsi_evt.subcategory =
(cmnd->result == SAM_STAT_TASK_SET_FULL) ?
LPFC_EVENT_QFULL : LPFC_EVENT_DEVBSY;
fast_path_evt->un.scsi_evt.lun = cmnd->device->lun;
memcpy(&fast_path_evt->un.scsi_evt.wwpn,
&pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.scsi_evt.wwnn,
&pnode->nlp_nodename, sizeof(struct lpfc_name));
} else if ((resp_info & SNS_LEN_VALID) && fcprsp->rspSnsLen &&
((cmnd->cmnd[0] == READ_10) || (cmnd->cmnd[0] == WRITE_10))) {
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.check_cond_evt.scsi_event.event_type =
FC_REG_SCSI_EVENT;
fast_path_evt->un.check_cond_evt.scsi_event.subcategory =
LPFC_EVENT_CHECK_COND;
fast_path_evt->un.check_cond_evt.scsi_event.lun =
cmnd->device->lun;
memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwpn,
&pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.check_cond_evt.scsi_event.wwnn,
&pnode->nlp_nodename, sizeof(struct lpfc_name));
fast_path_evt->un.check_cond_evt.sense_key =
cmnd->sense_buffer[2] & 0xf;
fast_path_evt->un.check_cond_evt.asc = cmnd->sense_buffer[12];
fast_path_evt->un.check_cond_evt.ascq = cmnd->sense_buffer[13];
} else if ((cmnd->sc_data_direction == DMA_FROM_DEVICE) &&
fcpi_parm &&
((be32_to_cpu(fcprsp->rspResId) != fcpi_parm) ||
((scsi_status == SAM_STAT_GOOD) &&
!(resp_info & (RESID_UNDER | RESID_OVER))))) {
/*
* If status is good or resid does not match with fcp_param and
* there is valid fcpi_parm, then there is a read_check error
*/
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
return;
fast_path_evt->un.read_check_error.header.event_type =
FC_REG_FABRIC_EVENT;
fast_path_evt->un.read_check_error.header.subcategory =
LPFC_EVENT_FCPRDCHKERR;
memcpy(&fast_path_evt->un.read_check_error.header.wwpn,
&pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.read_check_error.header.wwnn,
&pnode->nlp_nodename, sizeof(struct lpfc_name));
fast_path_evt->un.read_check_error.lun = cmnd->device->lun;
fast_path_evt->un.read_check_error.opcode = cmnd->cmnd[0];
fast_path_evt->un.read_check_error.fcpiparam =
fcpi_parm;
} else
return;
fast_path_evt->vport = vport;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&fast_path_evt->work_evt.evt_listp, &phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
return;
}
static void
lpfc_scsi_unprep_dma_buf(struct lpfc_hba * phba, struct lpfc_scsi_buf * psb)
{
@ -494,6 +709,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
uint32_t rsplen = 0;
uint32_t logit = LOG_FCP | LOG_FCP_ERROR;
/*
* If this is a task management command, there is no
* scsi packet associated with this lpfc_cmd. The driver
@ -609,6 +825,7 @@ lpfc_handle_fcp_err(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
out:
cmnd->result = ScsiResult(host_status, scsi_status);
lpfc_send_scsi_error_event(vport->phba, vport, lpfc_cmd, rsp_iocb);
}
static void
@ -625,6 +842,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
struct scsi_device *sdev, *tmp_sdev;
int depth = 0;
unsigned long flags;
struct lpfc_fast_path_event *fast_path_evt;
lpfc_cmd->result = pIocbOut->iocb.un.ulpWord[4];
lpfc_cmd->status = pIocbOut->iocb.ulpStatus;
@ -655,6 +873,30 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
case IOSTAT_NPORT_BSY:
case IOSTAT_FABRIC_BSY:
cmd->result = ScsiResult(DID_TRANSPORT_DISRUPTED, 0);
fast_path_evt = lpfc_alloc_fast_evt(phba);
if (!fast_path_evt)
break;
fast_path_evt->un.fabric_evt.event_type =
FC_REG_FABRIC_EVENT;
fast_path_evt->un.fabric_evt.subcategory =
(lpfc_cmd->status == IOSTAT_NPORT_BSY) ?
LPFC_EVENT_PORT_BUSY : LPFC_EVENT_FABRIC_BUSY;
if (pnode && NLP_CHK_NODE_ACT(pnode)) {
memcpy(&fast_path_evt->un.fabric_evt.wwpn,
&pnode->nlp_portname,
sizeof(struct lpfc_name));
memcpy(&fast_path_evt->un.fabric_evt.wwnn,
&pnode->nlp_nodename,
sizeof(struct lpfc_name));
}
fast_path_evt->vport = vport;
fast_path_evt->work_evt.evt =
LPFC_EVT_FASTPATH_MGMT_EVT;
spin_lock_irqsave(&phba->hbalock, flags);
list_add_tail(&fast_path_evt->work_evt.evt_listp,
&phba->work_list);
spin_unlock_irqrestore(&phba->hbalock, flags);
lpfc_worker_wake_up(phba);
break;
case IOSTAT_LOCAL_REJECT:
if (lpfc_cmd->result == IOERR_INVALID_RPI ||
@ -687,6 +929,7 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
scsi_get_resid(cmd));
}
lpfc_update_stats(phba, lpfc_cmd);
result = cmd->result;
sdev = cmd->device;
if (vport->cfg_max_scsicmpl_time &&
@ -755,6 +998,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
pnode->last_ramp_up_time = jiffies;
}
}
lpfc_send_sdev_queuedepth_change_event(phba, vport, pnode,
0xFFFFFFFF,
sdev->queue_depth - 1, sdev->queue_depth);
}
/*
@ -784,6 +1030,9 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
lpfc_printf_vlog(vport, KERN_WARNING, LOG_FCP,
"0711 detected queue full - lun queue "
"depth adjusted to %d.\n", depth);
lpfc_send_sdev_queuedepth_change_event(phba, vport,
pnode, 0xFFFFFFFF,
depth+1, depth);
}
}
@ -1112,6 +1361,7 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
goto out_host_busy;
}
lpfc_cmd->start_time = jiffies;
/*
* Store the midlayer's command structure for the completion phase
* and complete the command initialization.
@ -1280,6 +1530,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
int ret = SUCCESS;
int status;
int cnt;
struct lpfc_scsi_event_header scsi_event;
lpfc_block_error_handler(cmnd);
/*
@ -1298,6 +1549,19 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
break;
pnode = rdata->pnode;
}
scsi_event.event_type = FC_REG_SCSI_EVENT;
scsi_event.subcategory = LPFC_EVENT_TGTRESET;
scsi_event.lun = 0;
memcpy(scsi_event.wwpn, &pnode->nlp_portname, sizeof(struct lpfc_name));
memcpy(scsi_event.wwnn, &pnode->nlp_nodename, sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(scsi_event),
(char *)&scsi_event,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
if (!rdata || pnode->nlp_state != NLP_STE_MAPPED_NODE) {
lpfc_printf_vlog(vport, KERN_ERR, LOG_FCP,
"0721 LUN Reset rport "
@ -1381,6 +1645,19 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
int cnt;
struct lpfc_scsi_buf * lpfc_cmd;
unsigned long later;
struct lpfc_scsi_event_header scsi_event;
scsi_event.event_type = FC_REG_SCSI_EVENT;
scsi_event.subcategory = LPFC_EVENT_BUSRESET;
scsi_event.lun = 0;
memcpy(scsi_event.wwpn, &vport->fc_portname, sizeof(struct lpfc_name));
memcpy(scsi_event.wwnn, &vport->fc_nodename, sizeof(struct lpfc_name));
fc_host_post_vendor_event(shost,
fc_get_event_number(),
sizeof(scsi_event),
(char *)&scsi_event,
SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
lpfc_block_error_handler(cmnd);
/*

4
drivers/scsi/lpfc/lpfc_scsi.h
View File

@ -107,6 +107,10 @@ struct fcp_cmnd {
};
struct lpfc_scsicmd_bkt {
uint32_t cmd_count;
};
struct lpfc_scsi_buf {
struct list_head list;
struct scsi_cmnd *pCmd;

12
drivers/scsi/lpfc/lpfc_sli.c
View File

@ -32,6 +32,7 @@
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
@ -1610,6 +1611,17 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
if (cmdiocbp) {
if (cmdiocbp->iocb_cmpl) {
/*
* If an ELS command failed send an event to mgmt
* application.
*/
if (saveq->iocb.ulpStatus &&
(pring->ringno == LPFC_ELS_RING) &&
(cmdiocbp->iocb.ulpCommand ==
CMD_ELS_REQUEST64_CR))
lpfc_send_els_failure_event(phba,
cmdiocbp, saveq);
/*
* Post all ELS completions to the worker thread.
* All other are passed to the completion callback.

80
drivers/scsi/lpfc/lpfc_vport.c
View File

@ -34,6 +34,7 @@
#include <scsi/scsi_transport_fc.h>
#include "lpfc_hw.h"
#include "lpfc_sli.h"
#include "lpfc_nl.h"
#include "lpfc_disc.h"
#include "lpfc_scsi.h"
#include "lpfc.h"
@ -745,3 +746,82 @@ lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
scsi_host_put(lpfc_shost_from_vport(vports[i]));
kfree(vports);
}
/**
* lpfc_vport_reset_stat_data: Reset the statistical data for the vport.
* @vport: Pointer to vport object.
*
* This function resets the statistical data for the vport. This function
* is called with the host_lock held
**/
void
lpfc_vport_reset_stat_data(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp))
continue;
if (ndlp->lat_data)
memset(ndlp->lat_data, 0, LPFC_MAX_BUCKET_COUNT *
sizeof(struct lpfc_scsicmd_bkt));
}
}
/**
* lpfc_alloc_bucket: Allocate data buffer required for collecting
* statistical data.
* @vport: Pointer to vport object.
*
* This function allocates data buffer required for all the FC
* nodes of the vport to collect statistical data.
**/
void
lpfc_alloc_bucket(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp))
continue;
kfree(ndlp->lat_data);
ndlp->lat_data = NULL;
if (ndlp->nlp_state == NLP_STE_MAPPED_NODE) {
ndlp->lat_data = kcalloc(LPFC_MAX_BUCKET_COUNT,
sizeof(struct lpfc_scsicmd_bkt),
GFP_ATOMIC);
if (!ndlp->lat_data)
lpfc_printf_vlog(vport, KERN_ERR, LOG_NODE,
"0287 lpfc_alloc_bucket failed to "
"allocate statistical data buffer DID "
"0x%x\n", ndlp->nlp_DID);
}
}
}
/**
* lpfc_free_bucket: Free data buffer required for collecting
* statistical data.
* @vport: Pointer to vport object.
*
* Th function frees statistical data buffer of all the FC
* nodes of the vport.
**/
void
lpfc_free_bucket(struct lpfc_vport *vport)
{
struct lpfc_nodelist *ndlp = NULL, *next_ndlp = NULL;
list_for_each_entry_safe(ndlp, next_ndlp, &vport->fc_nodes, nlp_listp) {
if (!NLP_CHK_NODE_ACT(ndlp))
continue;
kfree(ndlp->lat_data);
ndlp->lat_data = NULL;
}
}

4
drivers/scsi/lpfc/lpfc_vport.h
View File

@ -112,4 +112,8 @@ struct vport_cmd_tag {
void lpfc_vport_set_state(struct lpfc_vport *vport,
enum fc_vport_state new_state);
void lpfc_vport_reset_stat_data(struct lpfc_vport *);
void lpfc_alloc_bucket(struct lpfc_vport *);
void lpfc_free_bucket(struct lpfc_vport *);
#endif /* H_LPFC_VPORT */