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Commit a70e33ea authored by Luo Jiaxing's avatar Luo Jiaxing Committed by Martin K. Petersen
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scsi: hisi_sas: Allocate memory for multiple dumps of debugfs 

We add multiple dumps for debugfs, but only allocate memory this time and
only dump #0.

Link: https://lore.kernel.org/r/1571926105-74636-15-git-send-email-john.garry@huawei.comSigned-off-by: default avatarLuo Jiaxing <luojiaxing@huawei.com>
Signed-off-by: default avatarJohn Garry <john.garry@huawei.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 357e4fc7
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Showing with 73 additions and 56 deletions
drivers/scsi/hisi_sas/hisi_sas.h
View file @ a70e33ea
......@@ -323,6 +323,8 @@ struct hisi_sas_hw {
const struct hisi_sas_debugfs_reg *debugfs_reg_port;
};
#define HISI_SAS_MAX_DEBUGFS_DUMP (50)
struct hisi_sas_debugfs_cq {
struct hisi_sas_cq *cq;
void *complete_hdr;
......@@ -440,15 +442,16 @@ struct hisi_hba {
/* debugfs memories */
/* Put Global AXI and RAS Register into register array */
struct hisi_sas_debugfs_regs debugfs_regs[DEBUGFS_REGS_NUM];
struct hisi_sas_debugfs_port 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];
struct hisi_sas_debugfs_iost debugfs_iost;
struct hisi_sas_debugfs_itct debugfs_itct;
struct hisi_sas_debugfs_regs debugfs_regs[HISI_SAS_MAX_DEBUGFS_DUMP][DEBUGFS_REGS_NUM];
struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_PHYS];
struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_DEBUGFS_DUMP][HISI_SAS_MAX_QUEUES];
struct hisi_sas_debugfs_iost debugfs_iost[HISI_SAS_MAX_DEBUGFS_DUMP];
struct hisi_sas_debugfs_itct debugfs_itct[HISI_SAS_MAX_DEBUGFS_DUMP];
struct hisi_sas_debugfs_iost_cache debugfs_iost_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
struct hisi_sas_debugfs_itct_cache debugfs_itct_cache[HISI_SAS_MAX_DEBUGFS_DUMP];
u64 debugfs_timestamp;
struct hisi_sas_debugfs_iost_cache debugfs_iost_cache;
struct hisi_sas_debugfs_itct_cache debugfs_itct_cache;
struct dentry *debugfs_dir;
struct dentry *debugfs_dump_dentry;
......
drivers/scsi/hisi_sas/hisi_sas_main.c
View file @ a70e33ea
......@@ -1573,7 +1573,7 @@ static int hisi_sas_controller_reset(struct hisi_hba *hisi_hba)
struct Scsi_Host *shost = hisi_hba->shost;
int rc;
if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct.itct)
if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)
queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
if (!hisi_hba->hw->soft_reset)
......@@ -2065,7 +2065,7 @@ _hisi_sas_internal_task_abort(struct hisi_hba *hisi_hba,
/* Internal abort timed out */
if ((task->task_state_flags & SAS_TASK_STATE_ABORTED)) {
if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct.itct)
if (hisi_sas_debugfs_enable && hisi_hba->debugfs_itct[0].itct)
queue_work(hisi_hba->wq, &hisi_hba->debugfs_work);
if (!(task->task_state_flags & SAS_TASK_STATE_DONE)) {
......@@ -2700,7 +2700,7 @@ static void hisi_sas_debugfs_snapshot_cq_reg(struct hisi_hba *hisi_hba)
int i;
for (i = 0; i < hisi_hba->queue_count; i++)
memcpy(hisi_hba->debugfs_cq[i].complete_hdr,
memcpy(hisi_hba->debugfs_cq[0][i].complete_hdr,
hisi_hba->complete_hdr[i],
HISI_SAS_QUEUE_SLOTS * queue_entry_size);
}
......@@ -2714,7 +2714,7 @@ static void hisi_sas_debugfs_snapshot_dq_reg(struct hisi_hba *hisi_hba)
struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr;
int j;
debugfs_cmd_hdr = hisi_hba->debugfs_dq[i].hdr;
debugfs_cmd_hdr = hisi_hba->debugfs_dq[0][i].hdr;
cmd_hdr = hisi_hba->cmd_hdr[i];
for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++)
......@@ -2732,7 +2732,7 @@ static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba)
u32 *databuf;
for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) {
databuf = hisi_hba->debugfs_port_reg[phy_cnt].data;
databuf = hisi_hba->debugfs_port_reg[0][phy_cnt].data;
for (i = 0; i < port->count; i++, databuf++) {
offset = port->base_off + 4 * i;
*databuf = port->read_port_reg(hisi_hba, phy_cnt,
......@@ -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].data;
u32 *databuf = hisi_hba->debugfs_regs[0][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].data;
u32 *databuf = hisi_hba->debugfs_regs[0][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].data;
u32 *databuf = hisi_hba->debugfs_regs[0][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];
......@@ -2781,8 +2781,8 @@ static void hisi_sas_debugfs_snapshot_ras_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba)
{
void *cachebuf = hisi_hba->debugfs_itct_cache.cache;
void *databuf = hisi_hba->debugfs_itct.itct;
void *cachebuf = hisi_hba->debugfs_itct_cache[0].cache;
void *databuf = hisi_hba->debugfs_itct[0].itct;
struct hisi_sas_itct *itct;
int i;
......@@ -2800,8 +2800,8 @@ static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba)
{
int max_command_entries = HISI_SAS_MAX_COMMANDS;
void *cachebuf = hisi_hba->debugfs_iost_cache.cache;
void *databuf = hisi_hba->debugfs_iost.iost;
void *cachebuf = hisi_hba->debugfs_iost_cache[0].cache;
void *databuf = hisi_hba->debugfs_iost[0].iost;
struct hisi_sas_iost *iost;
int i;
......@@ -3211,7 +3211,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
debugfs_timestamp);
debugfs_create_file("global", 0400, dump_dentry,
&hisi_hba->debugfs_regs[DEBUGFS_GLOBAL],
&hisi_hba->debugfs_regs[0][DEBUGFS_GLOBAL],
&hisi_sas_debugfs_global_fops);
/* Create port dir and files */
......@@ -3220,7 +3220,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
snprintf(name, 256, "%d", p);
debugfs_create_file(name, 0400, dentry,
&hisi_hba->debugfs_port_reg[p],
&hisi_hba->debugfs_port_reg[0][p],
&hisi_sas_debugfs_port_fops);
}
......@@ -3230,7 +3230,7 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
snprintf(name, 256, "%d", c);
debugfs_create_file(name, 0400, dentry,
&hisi_hba->debugfs_cq[c],
&hisi_hba->debugfs_cq[0][c],
&hisi_sas_debugfs_cq_fops);
}
......@@ -3240,32 +3240,32 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
snprintf(name, 256, "%d", d);
debugfs_create_file(name, 0400, dentry,
&hisi_hba->debugfs_dq[d],
&hisi_hba->debugfs_dq[0][d],
&hisi_sas_debugfs_dq_fops);
}
debugfs_create_file("iost", 0400, dump_dentry,
&hisi_hba->debugfs_iost,
&hisi_hba->debugfs_iost[0],
&hisi_sas_debugfs_iost_fops);
debugfs_create_file("iost_cache", 0400, dump_dentry,
&hisi_hba->debugfs_iost_cache,
&hisi_hba->debugfs_iost_cache[0],
&hisi_sas_debugfs_iost_cache_fops);
debugfs_create_file("itct", 0400, dump_dentry,
&hisi_hba->debugfs_itct,
&hisi_hba->debugfs_itct[0],
&hisi_sas_debugfs_itct_fops);
debugfs_create_file("itct_cache", 0400, dump_dentry,
&hisi_hba->debugfs_itct_cache,
&hisi_hba->debugfs_itct_cache[0],
&hisi_sas_debugfs_itct_cache_fops);
debugfs_create_file("axi", 0400, dump_dentry,
&hisi_hba->debugfs_regs[DEBUGFS_AXI],
&hisi_hba->debugfs_regs[0][DEBUGFS_AXI],
&hisi_sas_debugfs_axi_fops);
debugfs_create_file("ras", 0400, dump_dentry,
&hisi_hba->debugfs_regs[DEBUGFS_RAS],
&hisi_hba->debugfs_regs[0][DEBUGFS_RAS],
&hisi_sas_debugfs_ras_fops);
return;
......@@ -3711,38 +3711,40 @@ void hisi_sas_debugfs_work_handler(struct work_struct *work)
}
EXPORT_SYMBOL_GPL(hisi_sas_debugfs_work_handler);
static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba)
static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba, int dump_index)
{
struct device *dev = hisi_hba->dev;
int i;
devm_kfree(dev, hisi_hba->debugfs_iost_cache.cache);
devm_kfree(dev, hisi_hba->debugfs_itct_cache.cache);
devm_kfree(dev, hisi_hba->debugfs_iost.iost);
devm_kfree(dev, hisi_hba->debugfs_iost_cache[dump_index].cache);
devm_kfree(dev, hisi_hba->debugfs_itct_cache[dump_index].cache);
devm_kfree(dev, hisi_hba->debugfs_iost[dump_index].iost);
devm_kfree(dev, hisi_hba->debugfs_itct[dump_index].itct);
for (i = 0; i < hisi_hba->queue_count; i++)
devm_kfree(dev, hisi_hba->debugfs_dq[i].hdr);
devm_kfree(dev, hisi_hba->debugfs_dq[dump_index][i].hdr);
for (i = 0; i < hisi_hba->queue_count; i++)
devm_kfree(dev, hisi_hba->debugfs_cq[i].complete_hdr);
devm_kfree(dev,
hisi_hba->debugfs_cq[dump_index][i].complete_hdr);
for (i = 0; i < DEBUGFS_REGS_NUM; i++)
devm_kfree(dev, hisi_hba->debugfs_regs[i].data);
devm_kfree(dev, hisi_hba->debugfs_regs[dump_index][i].data);
for (i = 0; i < hisi_hba->n_phy; i++)
devm_kfree(dev, hisi_hba->debugfs_port_reg[i].data);
devm_kfree(dev, hisi_hba->debugfs_port_reg[dump_index][i].data);
}
static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
static int hisi_sas_debugfs_alloc(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;
int p, c, d, r, i;
size_t sz;
for (r = 0; r < DEBUGFS_REGS_NUM; r++) {
struct hisi_sas_debugfs_regs *regs =
&hisi_hba->debugfs_regs[r];
&hisi_hba->debugfs_regs[dump_index][r];
sz = hw->debugfs_reg_array[r]->count * 4;
regs->data = devm_kmalloc(dev, sz, GFP_KERNEL);
......@@ -3754,7 +3756,7 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = hw->debugfs_reg_port->count * 4;
for (p = 0; p < hisi_hba->n_phy; p++) {
struct hisi_sas_debugfs_port *port =
&hisi_hba->debugfs_port_reg[p];
&hisi_hba->debugfs_port_reg[dump_index][p];
port->data = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!port->data)
......@@ -3765,7 +3767,7 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = hw->complete_hdr_size * HISI_SAS_QUEUE_SLOTS;
for (c = 0; c < hisi_hba->queue_count; c++) {
struct hisi_sas_debugfs_cq *cq =
&hisi_hba->debugfs_cq[c];
&hisi_hba->debugfs_cq[dump_index][c];
cq->complete_hdr = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!cq->complete_hdr)
......@@ -3776,7 +3778,7 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = sizeof(struct hisi_sas_cmd_hdr) * HISI_SAS_QUEUE_SLOTS;
for (d = 0; d < hisi_hba->queue_count; d++) {
struct hisi_sas_debugfs_dq *dq =
&hisi_hba->debugfs_dq[d];
&hisi_hba->debugfs_dq[dump_index][d];
dq->hdr = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!dq->hdr)
......@@ -3786,34 +3788,39 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba)
sz = HISI_SAS_MAX_COMMANDS * sizeof(struct hisi_sas_iost);
hisi_hba->debugfs_iost.iost = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_iost.iost)
hisi_hba->debugfs_iost[dump_index].iost =
devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_iost[dump_index].iost)
goto fail;
sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
sizeof(struct hisi_sas_iost_itct_cache);
hisi_hba->debugfs_iost_cache.cache = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_iost_cache.cache)
hisi_hba->debugfs_iost_cache[dump_index].cache =
devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_iost_cache[dump_index].cache)
goto fail;
sz = HISI_SAS_IOST_ITCT_CACHE_NUM *
sizeof(struct hisi_sas_iost_itct_cache);
hisi_hba->debugfs_itct_cache.cache = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_itct_cache.cache)
hisi_hba->debugfs_itct_cache[dump_index].cache =
devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_itct_cache[dump_index].cache)
goto fail;
/* New memory allocation must be locate before itct */
sz = HISI_SAS_MAX_ITCT_ENTRIES * sizeof(struct hisi_sas_itct);
hisi_hba->debugfs_itct.itct = devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_itct.itct)
hisi_hba->debugfs_itct[dump_index].itct =
devm_kmalloc(dev, sz, GFP_KERNEL);
if (!hisi_hba->debugfs_itct[dump_index].itct)
goto fail;
return 0;
fail:
hisi_sas_debugfs_release(hisi_hba);
for (i = 0; i < HISI_SAS_MAX_DEBUGFS_DUMP; i++)
hisi_sas_debugfs_release(hisi_hba, i);
return -ENOMEM;
}
......@@ -3848,6 +3855,7 @@ static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba)
void hisi_sas_debugfs_init(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);
......@@ -3859,9 +3867,15 @@ void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba)
/* create bist structures */
hisi_sas_debugfs_bist_init(hisi_hba);
if (hisi_sas_debugfs_alloc(hisi_hba)) {
hisi_hba->debugfs_dump_dentry =
debugfs_create_dir("dump", hisi_hba->debugfs_dir);
for (i = 0; i < HISI_SAS_MAX_DEBUGFS_DUMP; i++) {
if (hisi_sas_debugfs_alloc(hisi_hba, i)) {
debugfs_remove_recursive(hisi_hba->debugfs_dir);
dev_dbg(dev, "failed to init debugfs!\n");
break;
}
}
}
EXPORT_SYMBOL_GPL(hisi_sas_debugfs_init);
......
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