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scsi: hisi_sas: Add debugfs file structure for registers

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Create a file structure which was used to save the memory address and
hisi_hba pointer for REGS at debugfs. This structure is bound to the
corresponding debugfs file, it can help callback function of debugfs file
to get what it need.

Link: https://lore.kernel.org/r/1571926105-74636-9-git-send-email-john.garry@huawei.com
Signed-off-by: Luo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Luo Jiaxing 2019-10-24 22:08:15 +08:00 committed by Martin K. Petersen
parent 1b54c4db72
commit c611639810
2 changed files with 35 additions and 34 deletions
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7
drivers/scsi/hisi_sas/hisi_sas.h
View File

@ -333,6 +333,11 @@ struct hisi_sas_debugfs_dq {
struct hisi_sas_cmd_hdr *hdr;
};
struct hisi_sas_debugfs_regs {
struct hisi_hba *hisi_hba;
u32 *data;
};
struct hisi_hba {
/* This must be the first element, used by SHOST_TO_SAS_HA */
struct sas_ha_struct *p;
@ -414,7 +419,7 @@ struct hisi_hba {
/* debugfs memories */
/* Put Global AXI and RAS Register into register array */
u32 *debugfs_regs[DEBUGFS_REGS_NUM];
struct hisi_sas_debugfs_regs debugfs_regs[DEBUGFS_REGS_NUM];
u32 *debugfs_port_reg[HISI_SAS_MAX_PHYS];
struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_QUEUES];
struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_QUEUES];

62
drivers/scsi/hisi_sas/hisi_sas_main.c
View File

@ -2743,7 +2743,7 @@ static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba)
{
u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_GLOBAL];
u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_GLOBAL].data;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const struct hisi_sas_debugfs_reg *global =
hw->debugfs_reg_array[DEBUGFS_GLOBAL];
@ -2755,7 +2755,7 @@ static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_axi_reg(struct hisi_hba *hisi_hba)
{
u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_AXI];
u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_AXI].data;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const struct hisi_sas_debugfs_reg *axi =
hw->debugfs_reg_array[DEBUGFS_AXI];
@ -2768,7 +2768,7 @@ static void hisi_sas_debugfs_snapshot_axi_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_ras_reg(struct hisi_hba *hisi_hba)
{
u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_RAS];
u32 *databuf = hisi_hba->debugfs_regs[DEBUGFS_RAS].data;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const struct hisi_sas_debugfs_reg *ras =
hw->debugfs_reg_array[DEBUGFS_RAS];
@ -2852,11 +2852,12 @@ static void hisi_sas_debugfs_print_reg(u32 *regs_val, const void *ptr,
static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p)
{
struct hisi_hba *hisi_hba = s->private;
struct hisi_sas_debugfs_regs *global = s->private;
struct hisi_hba *hisi_hba = global->hisi_hba;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const void *reg_global = hw->debugfs_reg_array[DEBUGFS_GLOBAL];
hisi_sas_debugfs_print_reg(hisi_hba->debugfs_regs[DEBUGFS_GLOBAL],
hisi_sas_debugfs_print_reg(global->data,
reg_global, s);
return 0;
@ -2878,11 +2879,12 @@ static const struct file_operations hisi_sas_debugfs_global_fops = {
static int hisi_sas_debugfs_axi_show(struct seq_file *s, void *p)
{
struct hisi_hba *hisi_hba = s->private;
struct hisi_sas_debugfs_regs *axi = s->private;
struct hisi_hba *hisi_hba = axi->hisi_hba;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const void *reg_axi = hw->debugfs_reg_array[DEBUGFS_AXI];
hisi_sas_debugfs_print_reg(hisi_hba->debugfs_regs[DEBUGFS_AXI],
hisi_sas_debugfs_print_reg(axi->data,
reg_axi, s);
return 0;
@ -2904,11 +2906,12 @@ static const struct file_operations hisi_sas_debugfs_axi_fops = {
static int hisi_sas_debugfs_ras_show(struct seq_file *s, void *p)
{
struct hisi_hba *hisi_hba = s->private;
struct hisi_sas_debugfs_regs *ras = s->private;
struct hisi_hba *hisi_hba = ras->hisi_hba;
const struct hisi_sas_hw *hw = hisi_hba->hw;
const void *reg_ras = hw->debugfs_reg_array[DEBUGFS_RAS];
hisi_sas_debugfs_print_reg(hisi_hba->debugfs_regs[DEBUGFS_RAS],
hisi_sas_debugfs_print_reg(ras->data,
reg_ras, s);
return 0;
@ -3209,7 +3212,8 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
debugfs_create_u64("timestamp", 0400, dump_dentry,
debugfs_timestamp);
debugfs_create_file("global", 0400, dump_dentry, hisi_hba,
debugfs_create_file("global", 0400, dump_dentry,
&hisi_hba->debugfs_regs[DEBUGFS_GLOBAL],
&hisi_sas_debugfs_global_fops);
/* Create port dir and files */
@ -3253,10 +3257,12 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
debugfs_create_file("itct_cache", 0400, dump_dentry, hisi_hba,
&hisi_sas_debugfs_itct_cache_fops);
debugfs_create_file("axi", 0400, dump_dentry, hisi_hba,
debugfs_create_file("axi", 0400, dump_dentry,
&hisi_hba->debugfs_regs[DEBUGFS_AXI],
&hisi_sas_debugfs_axi_fops);
debugfs_create_file("ras", 0400, dump_dentry, hisi_hba,
debugfs_create_file("ras", 0400, dump_dentry,
&hisi_hba->debugfs_regs[DEBUGFS_RAS],
&hisi_sas_debugfs_ras_fops);
return;
@ -3718,7 +3724,7 @@ static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba)
devm_kfree(dev, hisi_hba->debugfs_cq[i].complete_hdr);
for (i = 0; i < DEBUGFS_REGS_NUM; i++)
devm_kfree(dev, hisi_hba->debugfs_regs[i]);
devm_kfree(dev, hisi_hba->debugfs_regs[i].data);
for (i = 0; i < hisi_hba->n_phy; i++)
devm_kfree(dev, hisi_hba->debugfs_port_reg[i]);
@ -3728,15 +3734,19 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
{
const struct hisi_sas_hw *hw = hisi_hba->hw;
struct device *dev = hisi_hba->dev;
int p, c, d;
int p, c, d, r;
size_t sz;
sz = hw->debugfs_reg_array[DEBUGFS_GLOBAL]->count * 4;
hisi_hba->debugfs_regs[DEBUGFS_GLOBAL] =
devm_kmalloc(dev, sz, GFP_KERNEL);
for (r = 0; r < DEBUGFS_REGS_NUM; r++) {
struct hisi_sas_debugfs_regs *regs =
&hisi_hba->debugfs_regs[r];
if (!hisi_hba->debugfs_regs[DEBUGFS_GLOBAL])
goto fail;
sz = hw->debugfs_reg_array[r]->count * 4;
regs->data = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!regs->data)
goto fail;
regs->hisi_hba = hisi_hba;
}
sz = hw->debugfs_reg_port->count * 4;
for (p = 0; p < hisi_hba->n_phy; p++) {
@ -3747,20 +3757,6 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
goto fail;
}
sz = hw->debugfs_reg_array[DEBUGFS_AXI]->count * 4;
hisi_hba->debugfs_regs[DEBUGFS_AXI] =
devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_regs[DEBUGFS_AXI])
goto fail;
sz = hw->debugfs_reg_array[DEBUGFS_RAS]->count * 4;
hisi_hba->debugfs_regs[DEBUGFS_RAS] =
devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_regs[DEBUGFS_RAS])
goto fail;
sz = hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
for (c = 0; c < hisi_hba->queue_count; c++) {
struct hisi_sas_debugfs_cq *cq =