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path: root/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
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Diffstat (limited to 'drivers/scsi/hisi_sas/hisi_sas_v3_hw.c')
-rw-r--r--drivers/scsi/hisi_sas/hisi_sas_v3_hw.c253
1 files changed, 62 insertions, 191 deletions
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index bbb64ee6afd7..d8437a98037b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -558,8 +558,7 @@ static int experimental_iopoll_q_cnt;
module_param(experimental_iopoll_q_cnt, int, 0444);
MODULE_PARM_DESC(experimental_iopoll_q_cnt, "number of queues to be used as poll mode, def=0");
-static void debugfs_work_handler_v3_hw(struct work_struct *work);
-static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba);
+static int debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba);
static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off)
{
@@ -3388,7 +3387,6 @@ hisi_sas_shost_alloc_pci(struct pci_dev *pdev)
hisi_hba = shost_priv(shost);
INIT_WORK(&hisi_hba->rst_work, hisi_sas_rst_work_handler);
- INIT_WORK(&hisi_hba->debugfs_work, debugfs_work_handler_v3_hw);
hisi_hba->hw = &hisi_sas_v3_hw;
hisi_hba->pci_dev = pdev;
hisi_hba->dev = dev;
@@ -3860,37 +3858,6 @@ static void debugfs_create_files_v3_hw(struct hisi_hba *hisi_hba)
&debugfs_ras_v3_hw_fops);
}
-static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba)
-{
- int debugfs_dump_index = hisi_hba->debugfs_dump_index;
- struct device *dev = hisi_hba->dev;
- u64 timestamp = local_clock();
-
- if (debugfs_dump_index >= hisi_sas_debugfs_dump_count) {
- dev_warn(dev, "dump count exceeded!\n");
- return;
- }
-
- do_div(timestamp, NSEC_PER_MSEC);
- hisi_hba->debugfs_timestamp[debugfs_dump_index] = timestamp;
-
- debugfs_snapshot_prepare_v3_hw(hisi_hba);
-
- debugfs_snapshot_global_reg_v3_hw(hisi_hba);
- debugfs_snapshot_port_reg_v3_hw(hisi_hba);
- debugfs_snapshot_axi_reg_v3_hw(hisi_hba);
- debugfs_snapshot_ras_reg_v3_hw(hisi_hba);
- debugfs_snapshot_cq_reg_v3_hw(hisi_hba);
- debugfs_snapshot_dq_reg_v3_hw(hisi_hba);
- debugfs_snapshot_itct_reg_v3_hw(hisi_hba);
- debugfs_snapshot_iost_reg_v3_hw(hisi_hba);
-
- debugfs_create_files_v3_hw(hisi_hba);
-
- debugfs_snapshot_restore_v3_hw(hisi_hba);
- hisi_hba->debugfs_dump_index++;
-}
-
static ssize_t debugfs_trigger_dump_v3_hw_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
@@ -3898,9 +3865,6 @@ static ssize_t debugfs_trigger_dump_v3_hw_write(struct file *file,
struct hisi_hba *hisi_hba = file->f_inode->i_private;
char buf[8];
- if (hisi_hba->debugfs_dump_index >= hisi_sas_debugfs_dump_count)
- return -EFAULT;
-
if (count > 8)
return -EFAULT;
@@ -3910,7 +3874,12 @@ static ssize_t debugfs_trigger_dump_v3_hw_write(struct file *file,
if (buf[0] != '1')
return -EFAULT;
- queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
+ down(&hisi_hba->sem);
+ if (debugfs_snapshot_regs_v3_hw(hisi_hba)) {
+ up(&hisi_hba->sem);
+ return -EFAULT;
+ }
+ up(&hisi_hba->sem);
return count;
}
@@ -3990,22 +3959,7 @@ static ssize_t debugfs_bist_linkrate_v3_hw_write(struct file *filp,
return count;
}
-
-static int debugfs_bist_linkrate_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_bist_linkrate_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_linkrate_v3_hw_fops = {
- .open = debugfs_bist_linkrate_v3_hw_open,
- .read = seq_read,
- .write = debugfs_bist_linkrate_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_linkrate_v3_hw);
static const struct {
int value;
@@ -4080,22 +4034,7 @@ static ssize_t debugfs_bist_code_mode_v3_hw_write(struct file *filp,
return count;
}
-
-static int debugfs_bist_code_mode_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_bist_code_mode_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_code_mode_v3_hw_fops = {
- .open = debugfs_bist_code_mode_v3_hw_open,
- .read = seq_read,
- .write = debugfs_bist_code_mode_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_code_mode_v3_hw);
static ssize_t debugfs_bist_phy_v3_hw_write(struct file *filp,
const char __user *buf,
@@ -4129,22 +4068,7 @@ static int debugfs_bist_phy_v3_hw_show(struct seq_file *s, void *p)
return 0;
}
-
-static int debugfs_bist_phy_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_bist_phy_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_phy_v3_hw_fops = {
- .open = debugfs_bist_phy_v3_hw_open,
- .read = seq_read,
- .write = debugfs_bist_phy_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_phy_v3_hw);
static ssize_t debugfs_bist_cnt_v3_hw_write(struct file *filp,
const char __user *buf,
@@ -4177,22 +4101,7 @@ static int debugfs_bist_cnt_v3_hw_show(struct seq_file *s, void *p)
return 0;
}
-
-static int debugfs_bist_cnt_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_bist_cnt_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_cnt_v3_hw_ops = {
- .open = debugfs_bist_cnt_v3_hw_open,
- .read = seq_read,
- .write = debugfs_bist_cnt_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_cnt_v3_hw);
static const struct {
int value;
@@ -4256,22 +4165,7 @@ static ssize_t debugfs_bist_mode_v3_hw_write(struct file *filp,
return count;
}
-
-static int debugfs_bist_mode_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_bist_mode_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_mode_v3_hw_fops = {
- .open = debugfs_bist_mode_v3_hw_open,
- .read = seq_read,
- .write = debugfs_bist_mode_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_mode_v3_hw);
static ssize_t debugfs_bist_enable_v3_hw_write(struct file *filp,
const char __user *buf,
@@ -4309,22 +4203,7 @@ static int debugfs_bist_enable_v3_hw_show(struct seq_file *s, void *p)
return 0;
}
-
-static int debugfs_bist_enable_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_bist_enable_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_bist_enable_v3_hw_fops = {
- .open = debugfs_bist_enable_v3_hw_open,
- .read = seq_read,
- .write = debugfs_bist_enable_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_bist_enable_v3_hw);
static const struct {
char *name;
@@ -4362,21 +4241,7 @@ static int debugfs_v3_hw_show(struct seq_file *s, void *p)
return 0;
}
-
-static int debugfs_v3_hw_open(struct inode *inode, struct file *filp)
-{
- return single_open(filp, debugfs_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_v3_hw_fops = {
- .open = debugfs_v3_hw_open,
- .read = seq_read,
- .write = debugfs_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_v3_hw);
static ssize_t debugfs_phy_down_cnt_v3_hw_write(struct file *filp,
const char __user *buf,
@@ -4407,22 +4272,7 @@ static int debugfs_phy_down_cnt_v3_hw_show(struct seq_file *s, void *p)
return 0;
}
-
-static int debugfs_phy_down_cnt_v3_hw_open(struct inode *inode,
- struct file *filp)
-{
- return single_open(filp, debugfs_phy_down_cnt_v3_hw_show,
- inode->i_private);
-}
-
-static const struct file_operations debugfs_phy_down_cnt_v3_hw_fops = {
- .open = debugfs_phy_down_cnt_v3_hw_open,
- .read = seq_read,
- .write = debugfs_phy_down_cnt_v3_hw_write,
- .llseek = seq_lseek,
- .release = single_release,
- .owner = THIS_MODULE,
-};
+DEFINE_SHOW_STORE_ATTRIBUTE(debugfs_phy_down_cnt_v3_hw);
enum fifo_dump_mode_v3_hw {
FIFO_DUMP_FORVER = (1U << 0),
@@ -4661,14 +4511,6 @@ static void debugfs_fifo_init_v3_hw(struct hisi_hba *hisi_hba)
}
}
-static void debugfs_work_handler_v3_hw(struct work_struct *work)
-{
- struct hisi_hba *hisi_hba =
- container_of(work, struct hisi_hba, debugfs_work);
-
- debugfs_snapshot_regs_v3_hw(hisi_hba);
-}
-
static void debugfs_release_v3_hw(struct hisi_hba *hisi_hba, int dump_index)
{
struct device *dev = hisi_hba->dev;
@@ -4703,7 +4545,7 @@ static int debugfs_alloc_v3_hw(struct hisi_hba *hisi_hba, int dump_index)
{
const struct hisi_sas_hw *hw = hisi_hba->hw;
struct device *dev = hisi_hba->dev;
- int p, c, d, r, i;
+ int p, c, d, r;
size_t sz;
for (r = 0; r < DEBUGFS_REGS_NUM; r++) {
@@ -4783,11 +4625,48 @@ static int debugfs_alloc_v3_hw(struct hisi_hba *hisi_hba, int dump_index)
return 0;
fail:
- for (i = 0; i < hisi_sas_debugfs_dump_count; i++)
- debugfs_release_v3_hw(hisi_hba, i);
+ debugfs_release_v3_hw(hisi_hba, dump_index);
return -ENOMEM;
}
+static int debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba)
+{
+ int debugfs_dump_index = hisi_hba->debugfs_dump_index;
+ struct device *dev = hisi_hba->dev;
+ u64 timestamp = local_clock();
+
+ if (debugfs_dump_index >= hisi_sas_debugfs_dump_count) {
+ dev_warn(dev, "dump count exceeded!\n");
+ return -EINVAL;
+ }
+
+ if (debugfs_alloc_v3_hw(hisi_hba, debugfs_dump_index)) {
+ dev_warn(dev, "failed to alloc memory\n");
+ return -ENOMEM;
+ }
+
+ do_div(timestamp, NSEC_PER_MSEC);
+ hisi_hba->debugfs_timestamp[debugfs_dump_index] = timestamp;
+
+ debugfs_snapshot_prepare_v3_hw(hisi_hba);
+
+ debugfs_snapshot_global_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_port_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_axi_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_ras_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_cq_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_dq_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_itct_reg_v3_hw(hisi_hba);
+ debugfs_snapshot_iost_reg_v3_hw(hisi_hba);
+
+ debugfs_create_files_v3_hw(hisi_hba);
+
+ debugfs_snapshot_restore_v3_hw(hisi_hba);
+ hisi_hba->debugfs_dump_index++;
+
+ return 0;
+}
+
static void debugfs_phy_down_cnt_init_v3_hw(struct hisi_hba *hisi_hba)
{
struct dentry *dir = debugfs_create_dir("phy_down_cnt",
@@ -4832,7 +4711,7 @@ static void debugfs_bist_init_v3_hw(struct hisi_hba *hisi_hba)
hisi_hba, &debugfs_bist_phy_v3_hw_fops);
debugfs_create_file("cnt", 0600, hisi_hba->debugfs_bist_dentry,
- hisi_hba, &debugfs_bist_cnt_v3_hw_ops);
+ hisi_hba, &debugfs_bist_cnt_v3_hw_fops);
debugfs_create_file("loopback_mode", 0600,
hisi_hba->debugfs_bist_dentry,
@@ -4865,10 +4744,15 @@ static void debugfs_bist_init_v3_hw(struct hisi_hba *hisi_hba)
hisi_hba->debugfs_bist_linkrate = SAS_LINK_RATE_1_5_GBPS;
}
+static void debugfs_exit_v3_hw(struct hisi_hba *hisi_hba)
+{
+ debugfs_remove_recursive(hisi_hba->debugfs_dir);
+ hisi_hba->debugfs_dir = NULL;
+}
+
static void debugfs_init_v3_hw(struct hisi_hba *hisi_hba)
{
struct device *dev = hisi_hba->dev;
- int i;
hisi_hba->debugfs_dir = debugfs_create_dir(dev_name(dev),
hisi_sas_debugfs_dir);
@@ -4885,19 +4769,6 @@ static void debugfs_init_v3_hw(struct hisi_hba *hisi_hba)
debugfs_phy_down_cnt_init_v3_hw(hisi_hba);
debugfs_fifo_init_v3_hw(hisi_hba);
-
- for (i = 0; i < hisi_sas_debugfs_dump_count; i++) {
- if (debugfs_alloc_v3_hw(hisi_hba, i)) {
- debugfs_remove_recursive(hisi_hba->debugfs_dir);
- dev_dbg(dev, "failed to init debugfs!\n");
- break;
- }
- }
-}
-
-static void debugfs_exit_v3_hw(struct hisi_hba *hisi_hba)
-{
- debugfs_remove_recursive(hisi_hba->debugfs_dir);
}
static int
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-13 09:31:59 +0300