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Code Issues Releases Wiki Activity

scsi: lpfc: Remove SANDiags related code

Browse source 
The SANDiags feature is unused, and related code is removed.

Link: https://lore.kernel.org/r/20220819011736.14141-6-jsmart2021@gmail.com
Co-developed-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Signed-off-by: James Smart <jsmart2021@gmail.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
James Smart 2022-08-18 18:17:34 -07:00 committed by Martin K. Petersen
parent 71ddeeaf5b
commit 2af33e5a03
8 changed files with 4 additions and 507 deletions
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11
drivers/scsi/lpfc/lpfc.h
View file

@ -68,8 +68,6 @@ struct lpfc_sli2_slim;
#define LPFC_MIN_TGT_QDEPTH 10
#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
@ -732,8 +730,6 @@ 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 list_head rcv_buffer_list;
unsigned long rcv_buffer_time_stamp;
uint32_t vport_flag;
@ -1436,13 +1432,6 @@ struct lpfc_hba {
*/
#define QUE_BUFTAG_BIT (1<<31)
uint32_t buffer_tag_count;
/* 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

344
drivers/scsi/lpfc/lpfc_attr.c
View file

@ -4093,333 +4093,6 @@ lpfc_static_vport_show(struct device *dev, struct device_attribute *attr,
*/
static DEVICE_ATTR_RO(lpfc_static_vport);
/**
* lpfc_stat_data_ctrl_store - write call back for lpfc_stat_data_ctrl sysfs file
* @dev: Pointer to class device.
* @attr: Unused.
* @buf: Data buffer.
* @count: Size of the data buffer.
*
* This function get called when a 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 - 1))
return -EINVAL;
strncpy(bucket_data, buf, LPFC_MAX_DATA_CTRL_LEN);
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_vports && 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_vports && 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_vports && 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 function for lpfc_stat_data_ctrl sysfs file
* @dev: Pointer to class device.
* @attr: Unused.
* @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_RW(lpfc_stat_data_ctrl);
/*
* 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 function for lpfc_drvr_stat_data attribute
* @filp: sysfs file
* @kobj: Pointer to the kernel object
* @bin_attr: Attribute object
* @buf: 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 file *filp, 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 (!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,
},
.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.
@ -6273,7 +5946,6 @@ static struct attribute *lpfc_hba_attrs[] = {
&dev_attr_lpfc_xlane_priority.attr,
&dev_attr_lpfc_sg_seg_cnt.attr,
&dev_attr_lpfc_max_scsicmpl_time.attr,
&dev_attr_lpfc_stat_data_ctrl.attr,
&dev_attr_lpfc_aer_support.attr,
&dev_attr_lpfc_aer_state_cleanup.attr,
&dev_attr_lpfc_sriov_nr_virtfn.attr,
@ -6332,7 +6004,6 @@ static struct attribute *lpfc_vport_attrs[] = {
&dev_attr_npiv_info.attr,
&dev_attr_lpfc_enable_da_id.attr,
&dev_attr_lpfc_max_scsicmpl_time.attr,
&dev_attr_lpfc_stat_data_ctrl.attr,
&dev_attr_lpfc_static_vport.attr,
&dev_attr_cmf_info.attr,
NULL,
@ -6545,17 +6216,14 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
int error;
error = sysfs_create_bin_file(&shost->shost_dev.kobj,
&sysfs_drvr_stat_data_attr);
/* Virtual ports do not need ctrl_reg and mbox */
if (error || vport->port_type == LPFC_NPIV_PORT)
goto out;
if (vport->port_type == LPFC_NPIV_PORT)
return 0;
error = sysfs_create_bin_file(&shost->shost_dev.kobj,
&sysfs_ctlreg_attr);
if (error)
goto out_remove_stat_attr;
goto out;
error = sysfs_create_bin_file(&shost->shost_dev.kobj,
&sysfs_mbox_attr);
@ -6565,9 +6233,6 @@ lpfc_alloc_sysfs_attr(struct lpfc_vport *vport)
return 0;
out_remove_ctlreg_attr:
sysfs_remove_bin_file(&shost->shost_dev.kobj, &sysfs_ctlreg_attr);
out_remove_stat_attr:
sysfs_remove_bin_file(&shost->shost_dev.kobj,
&sysfs_drvr_stat_data_attr);
out:
return error;
}
@ -6580,8 +6245,7 @@ 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);
/* Virtual ports do not need ctrl_reg and mbox */
if (vport->port_type == LPFC_NPIV_PORT)
return;

1
drivers/scsi/lpfc/lpfc_disc.h
View file

@ -149,7 +149,6 @@ struct lpfc_nodelist {
uint32_t cmd_qdepth;
unsigned long last_change_time;
unsigned long *active_rrqs_xri_bitmap;
struct lpfc_scsicmd_bkt *lat_data; /* Latency data */
uint32_t fc4_prli_sent;
/* flags to keep ndlp alive until special conditions are met */

17
drivers/scsi/lpfc/lpfc_hbadisc.c
View file

@ -4787,22 +4787,6 @@ lpfc_nlp_state_cleanup(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
new_state == NLP_STE_UNMAPPED_NODE)
lpfc_nlp_reg_node(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_TRACE_EVENT,
"0286 lpfc_nlp_state_cleanup failed to "
"allocate statistical data buffer DID "
"0x%x\n", ndlp->nlp_DID);
}
/*
* If the node just added to Mapped list was an FCP target,
* but the remote port registration failed or assigned a target
@ -6647,7 +6631,6 @@ lpfc_nlp_release(struct kref *kref)
ndlp->fc4_xpt_flags = 0;
/* free ndlp memory for final ndlp release */
kfree(ndlp->lat_data);
if (ndlp->phba->sli_rev == LPFC_SLI_REV4)
mempool_free(ndlp->active_rrqs_xri_bitmap,
ndlp->phba->active_rrq_pool);

59
drivers/scsi/lpfc/lpfc_scsi.c
View file

@ -111,62 +111,6 @@ lpfc_sli4_set_rsp_sgl_last(struct lpfc_hba *phba,
#define LPFC_INVALID_REFTAG ((u32)-1)
/**
* lpfc_update_stats - Update statistical data for the command completion
* @vport: The virtual port on which this call is executing.
* @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_vport *vport, struct lpfc_io_buf *lpfc_cmd)
{
struct lpfc_hba *phba = vport->phba;
struct lpfc_rport_data *rdata;
struct lpfc_nodelist *pnode;
struct scsi_cmnd *cmd = lpfc_cmd->pCmd;
unsigned long flags;
struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
unsigned long latency;
int i;
if (!vport->stat_data_enabled ||
vport->stat_data_blocked ||
(cmd->result))
return;
latency = jiffies_to_msecs((long)jiffies - (long)lpfc_cmd->start_time);
rdata = lpfc_cmd->rdata;
pnode = rdata->pnode;
spin_lock_irqsave(shost->host_lock, flags);
if (!pnode ||
!pnode->lat_data ||
(phba->bucket_type == LPFC_NO_BUCKET)) {
spin_unlock_irqrestore(shost->host_lock, flags);
return;
}
if (phba->bucket_type == LPFC_LINEAR_BUCKET) {
i = (latency + phba->bucket_step - 1 - phba->bucket_base)/
phba->bucket_step;
/* check array subscript bounds */
if (i < 0)
i = 0;
else if (i >= LPFC_MAX_BUCKET_COUNT)
i = LPFC_MAX_BUCKET_COUNT - 1;
} 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_rampdown_queue_depth - Post RAMP_DOWN_QUEUE event to worker thread
* @phba: The Hba for which this call is being executed.
@ -4335,8 +4279,6 @@ lpfc_fcp_io_cmd_wqe_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pwqeIn,
cmd->retries, scsi_get_resid(cmd));
}
lpfc_update_stats(vport, lpfc_cmd);
if (vport->cfg_max_scsicmpl_time &&
time_after(jiffies, lpfc_cmd->start_time +
msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {
@ -4617,7 +4559,6 @@ lpfc_scsi_cmd_iocb_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *pIocbIn,
scsi_get_resid(cmd));
}
lpfc_update_stats(vport, lpfc_cmd);
if (vport->cfg_max_scsicmpl_time &&
time_after(jiffies, lpfc_cmd->start_time +
msecs_to_jiffies(vport->cfg_max_scsicmpl_time))) {

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

@ -126,10 +126,6 @@ struct fcp_cmnd {
};
struct lpfc_scsicmd_bkt {
uint32_t cmd_count;
};
#define LPFC_SCSI_DMA_EXT_SIZE 264
#define LPFC_BPL_SIZE 1024
#define MDAC_DIRECT_CMD 0x22

71
drivers/scsi/lpfc/lpfc_vport.c
View file

@ -809,74 +809,3 @@ lpfc_destroy_vport_work_array(struct lpfc_hba *phba, struct lpfc_vport **vports)
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 (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 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) {
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_TRACE_EVENT,
"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 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) {
kfree(ndlp->lat_data);
ndlp->lat_data = NULL;
}
}

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

@ -115,8 +115,4 @@ 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 */