From: Luo Jiaxing luojiaxing@huawei.com
mainline inclusion from mainline-master commit 623a4b6d5c2a7595f677fa17348dbca6b461f16a category: bugfix bugzilla: 175270 CVE: NA
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?i...
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Relocate all the debugfs code for DFX to v3 hw since no other versions support it.
Link: https://lore.kernel.org/r/1606207594-196362-4-git-send-email-john.garry@huaw... 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 Reviewed-by: Ouyangdelong ouyangdelong@huawei.com Signed-off-by: Nifujia nifujia1@hisilicon.com Signed-off-by: Zheng Zengkai zhengzengkai@huawei.com --- drivers/scsi/hisi_sas/hisi_sas.h | 28 - drivers/scsi/hisi_sas/hisi_sas_main.c | 1346 +----------------------- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 1225 ++++++++++++++++++++- 3 files changed, 1212 insertions(+), 1387 deletions(-)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index a25cfc11c96d..2b28dd405600 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -243,24 +243,6 @@ struct hisi_sas_slot { u16 idx; };
-#define HISI_SAS_DEBUGFS_REG(x) {#x, x} - -struct hisi_sas_debugfs_reg_lu { - char *name; - int off; -}; - -struct hisi_sas_debugfs_reg { - const struct hisi_sas_debugfs_reg_lu *lu; - int count; - int base_off; - union { - u32 (*read_global_reg)(struct hisi_hba *hisi_hba, u32 off); - u32 (*read_port_reg)(struct hisi_hba *hisi_hba, int port, - u32 off); - }; -}; - struct hisi_sas_iost_itct_cache { u32 data[HISI_SAS_IOST_ITCT_CACHE_DW_SZ]; }; @@ -350,15 +332,8 @@ struct hisi_sas_hw { int delay_ms, int timeout_ms); void (*snapshot_prepare)(struct hisi_hba *hisi_hba); void (*snapshot_restore)(struct hisi_hba *hisi_hba); - int (*set_bist)(struct hisi_hba *hisi_hba, bool enable); - void (*read_iost_itct_cache)(struct hisi_hba *hisi_hba, - enum hisi_sas_debugfs_cache_type type, - u32 *cache); int complete_hdr_size; struct scsi_host_template *sht; - - const struct hisi_sas_debugfs_reg *debugfs_reg_array[DEBUGFS_REGS_NUM]; - const struct hisi_sas_debugfs_reg *debugfs_reg_port; };
#define HISI_SAS_MAX_DEBUGFS_DUMP (50) @@ -673,7 +648,4 @@ extern void hisi_sas_release_tasks(struct hisi_hba *hisi_hba); extern u8 hisi_sas_get_prog_phy_linkrate_mask(enum sas_linkrate max); extern void hisi_sas_controller_reset_prepare(struct hisi_hba *hisi_hba); extern void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba); -extern void hisi_sas_debugfs_init(struct hisi_hba *hisi_hba); -extern void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba); -extern void hisi_sas_debugfs_work_handler(struct work_struct *work); #endif diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 1feca45384c7..95a4fc4f829d 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -2692,1355 +2692,12 @@ int hisi_sas_probe(struct platform_device *pdev, err_out_register_ha: scsi_remove_host(shost); err_out_ha: - hisi_sas_debugfs_exit(hisi_hba); hisi_sas_free(hisi_hba); scsi_host_put(shost); return rc; } EXPORT_SYMBOL_GPL(hisi_sas_probe);
-struct dentry *hisi_sas_debugfs_dir; - -static void hisi_sas_debugfs_snapshot_cq_reg(struct hisi_hba *hisi_hba) -{ - int queue_entry_size = hisi_hba->hw->complete_hdr_size; - int dump_index = hisi_hba->debugfs_dump_index; - int i; - - for (i = 0; i < hisi_hba->queue_count; i++) - memcpy(hisi_hba->debugfs_cq[dump_index][i].complete_hdr, - hisi_hba->complete_hdr[i], - HISI_SAS_QUEUE_SLOTS * queue_entry_size); -} - -static void hisi_sas_debugfs_snapshot_dq_reg(struct hisi_hba *hisi_hba) -{ - int queue_entry_size = sizeof(struct hisi_sas_cmd_hdr); - int dump_index = hisi_hba->debugfs_dump_index; - int i; - - for (i = 0; i < hisi_hba->queue_count; i++) { - struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr; - int j; - - debugfs_cmd_hdr = hisi_hba->debugfs_dq[dump_index][i].hdr; - cmd_hdr = hisi_hba->cmd_hdr[i]; - - for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++) - memcpy(&debugfs_cmd_hdr[j], &cmd_hdr[j], - queue_entry_size); - } -} - -static void hisi_sas_debugfs_snapshot_port_reg(struct hisi_hba *hisi_hba) -{ - int dump_index = hisi_hba->debugfs_dump_index; - const struct hisi_sas_debugfs_reg *port = - hisi_hba->hw->debugfs_reg_port; - int i, phy_cnt; - u32 offset; - u32 *databuf; - - for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) { - databuf = hisi_hba->debugfs_port_reg[dump_index][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, - offset); - } - } -} - -static void hisi_sas_debugfs_snapshot_global_reg(struct hisi_hba *hisi_hba) -{ - int dump_index = hisi_hba->debugfs_dump_index; - u32 *databuf = hisi_hba->debugfs_regs[dump_index][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]; - int i; - - for (i = 0; i < global->count; i++, databuf++) - *databuf = global->read_global_reg(hisi_hba, 4 * i); -} - -static void hisi_sas_debugfs_snapshot_axi_reg(struct hisi_hba *hisi_hba) -{ - int dump_index = hisi_hba->debugfs_dump_index; - u32 *databuf = hisi_hba->debugfs_regs[dump_index][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]; - int i; - - for (i = 0; i < axi->count; i++, databuf++) - *databuf = axi->read_global_reg(hisi_hba, - 4 * i + axi->base_off); -} - -static void hisi_sas_debugfs_snapshot_ras_reg(struct hisi_hba *hisi_hba) -{ - int dump_index = hisi_hba->debugfs_dump_index; - u32 *databuf = hisi_hba->debugfs_regs[dump_index][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]; - int i; - - for (i = 0; i < ras->count; i++, databuf++) - *databuf = ras->read_global_reg(hisi_hba, - 4 * i + ras->base_off); -} - -static void hisi_sas_debugfs_snapshot_itct_reg(struct hisi_hba *hisi_hba) -{ - int dump_index = hisi_hba->debugfs_dump_index; - void *cachebuf = hisi_hba->debugfs_itct_cache[dump_index].cache; - void *databuf = hisi_hba->debugfs_itct[dump_index].itct; - struct hisi_sas_itct *itct; - int i; - - hisi_hba->hw->read_iost_itct_cache(hisi_hba, HISI_SAS_ITCT_CACHE, - cachebuf); - - itct = hisi_hba->itct; - - for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) { - memcpy(databuf, itct, sizeof(struct hisi_sas_itct)); - databuf += sizeof(struct hisi_sas_itct); - } -} - -static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba) -{ - int dump_index = hisi_hba->debugfs_dump_index; - int max_command_entries = HISI_SAS_MAX_COMMANDS; - void *cachebuf = hisi_hba->debugfs_iost_cache[dump_index].cache; - void *databuf = hisi_hba->debugfs_iost[dump_index].iost; - struct hisi_sas_iost *iost; - int i; - - hisi_hba->hw->read_iost_itct_cache(hisi_hba, HISI_SAS_IOST_CACHE, - cachebuf); - - iost = hisi_hba->iost; - - for (i = 0; i < max_command_entries; i++, iost++) { - memcpy(databuf, iost, sizeof(struct hisi_sas_iost)); - databuf += sizeof(struct hisi_sas_iost); - } -} - -static const char * -hisi_sas_debugfs_to_reg_name(int off, int base_off, - const struct hisi_sas_debugfs_reg_lu *lu) -{ - for (; lu->name; lu++) { - if (off == lu->off - base_off) - return lu->name; - } - - return NULL; -} - -static void hisi_sas_debugfs_print_reg(u32 *regs_val, const void *ptr, - struct seq_file *s) -{ - const struct hisi_sas_debugfs_reg *reg = ptr; - int i; - - for (i = 0; i < reg->count; i++) { - int off = i * 4; - const char *name; - - name = hisi_sas_debugfs_to_reg_name(off, reg->base_off, - reg->lu); - - if (name) - seq_printf(s, "0x%08x 0x%08x %s\n", off, - regs_val[i], name); - else - seq_printf(s, "0x%08x 0x%08x\n", off, - regs_val[i]); - } -} - -static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p) -{ - 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(global->data, - reg_global, s); - - return 0; -} - -static int hisi_sas_debugfs_global_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_global_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_global_fops = { - .open = hisi_sas_debugfs_global_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_axi_show(struct seq_file *s, void *p) -{ - 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(axi->data, - reg_axi, s); - - return 0; -} - -static int hisi_sas_debugfs_axi_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_axi_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_axi_fops = { - .open = hisi_sas_debugfs_axi_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_ras_show(struct seq_file *s, void *p) -{ - 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(ras->data, - reg_ras, s); - - return 0; -} - -static int hisi_sas_debugfs_ras_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_ras_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_ras_fops = { - .open = hisi_sas_debugfs_ras_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_port_show(struct seq_file *s, void *p) -{ - struct hisi_sas_debugfs_port *port = s->private; - struct hisi_sas_phy *phy = port->phy; - struct hisi_hba *hisi_hba = phy->hisi_hba; - const struct hisi_sas_hw *hw = hisi_hba->hw; - const struct hisi_sas_debugfs_reg *reg_port = hw->debugfs_reg_port; - - hisi_sas_debugfs_print_reg(port->data, reg_port, s); - - return 0; -} - -static int hisi_sas_debugfs_port_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_port_show, inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_port_fops = { - .open = hisi_sas_debugfs_port_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static void hisi_sas_show_row_64(struct seq_file *s, int index, - int sz, __le64 *ptr) -{ - int i; - - /* completion header size not fixed per HW version */ - seq_printf(s, "index %04d:\n\t", index); - for (i = 1; i <= sz / 8; i++, ptr++) { - seq_printf(s, " 0x%016llx", le64_to_cpu(*ptr)); - if (!(i % 2)) - seq_puts(s, "\n\t"); - } - - seq_puts(s, "\n"); -} - -static void hisi_sas_show_row_32(struct seq_file *s, int index, - int sz, __le32 *ptr) -{ - int i; - - /* completion header size not fixed per HW version */ - seq_printf(s, "index %04d:\n\t", index); - for (i = 1; i <= sz / 4; i++, ptr++) { - seq_printf(s, " 0x%08x", le32_to_cpu(*ptr)); - if (!(i % 4)) - seq_puts(s, "\n\t"); - } - seq_puts(s, "\n"); -} - -static void hisi_sas_cq_show_slot(struct seq_file *s, int slot, - struct hisi_sas_debugfs_cq *debugfs_cq) -{ - struct hisi_sas_cq *cq = debugfs_cq->cq; - struct hisi_hba *hisi_hba = cq->hisi_hba; - __le32 *complete_hdr = debugfs_cq->complete_hdr + - (hisi_hba->hw->complete_hdr_size * slot); - - hisi_sas_show_row_32(s, slot, - hisi_hba->hw->complete_hdr_size, - complete_hdr); -} - -static int hisi_sas_debugfs_cq_show(struct seq_file *s, void *p) -{ - struct hisi_sas_debugfs_cq *debugfs_cq = s->private; - int slot; - - for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) { - hisi_sas_cq_show_slot(s, slot, debugfs_cq); - } - return 0; -} - -static int hisi_sas_debugfs_cq_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_cq_show, inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_cq_fops = { - .open = hisi_sas_debugfs_cq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static void hisi_sas_dq_show_slot(struct seq_file *s, int slot, void *dq_ptr) -{ - struct hisi_sas_debugfs_dq *debugfs_dq = dq_ptr; - void *cmd_queue = debugfs_dq->hdr; - __le32 *cmd_hdr = cmd_queue + - sizeof(struct hisi_sas_cmd_hdr) * slot; - - hisi_sas_show_row_32(s, slot, sizeof(struct hisi_sas_cmd_hdr), cmd_hdr); -} - -static int hisi_sas_debugfs_dq_show(struct seq_file *s, void *p) -{ - int slot; - - for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) { - hisi_sas_dq_show_slot(s, slot, s->private); - } - return 0; -} - -static int hisi_sas_debugfs_dq_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_dq_show, inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_dq_fops = { - .open = hisi_sas_debugfs_dq_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p) -{ - struct hisi_sas_debugfs_iost *debugfs_iost = s->private; - struct hisi_sas_iost *iost = debugfs_iost->iost; - int i, max_command_entries = HISI_SAS_MAX_COMMANDS; - - for (i = 0; i < max_command_entries; i++, iost++) { - __le64 *data = &iost->qw0; - - hisi_sas_show_row_64(s, i, sizeof(*iost), data); - } - - return 0; -} - -static int hisi_sas_debugfs_iost_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_iost_show, inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_iost_fops = { - .open = hisi_sas_debugfs_iost_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_iost_cache_show(struct seq_file *s, void *p) -{ - struct hisi_sas_debugfs_iost_cache *debugfs_iost_cache = s->private; - struct hisi_sas_iost_itct_cache *iost_cache = debugfs_iost_cache->cache; - u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4; - int i, tab_idx; - __le64 *iost; - - for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_NUM; i++, iost_cache++) { - /* - * Data struct of IOST cache: - * Data[1]: BIT0~15: Table index - * Bit16: Valid mask - * Data[2]~[9]: IOST table - */ - tab_idx = (iost_cache->data[1] & 0xffff); - iost = (__le64 *)iost_cache; - - hisi_sas_show_row_64(s, tab_idx, cache_size, iost); - } - - return 0; -} - -static int hisi_sas_debugfs_iost_cache_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_iost_cache_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_iost_cache_fops = { - .open = hisi_sas_debugfs_iost_cache_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_itct_show(struct seq_file *s, void *p) -{ - int i; - struct hisi_sas_debugfs_itct *debugfs_itct = s->private; - struct hisi_sas_itct *itct = debugfs_itct->itct; - - for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) { - __le64 *data = &itct->qw0; - - hisi_sas_show_row_64(s, i, sizeof(*itct), data); - } - - return 0; -} - -static int hisi_sas_debugfs_itct_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_itct_show, inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_itct_fops = { - .open = hisi_sas_debugfs_itct_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static int hisi_sas_debugfs_itct_cache_show(struct seq_file *s, void *p) -{ - struct hisi_sas_debugfs_itct_cache *debugfs_itct_cache = s->private; - struct hisi_sas_iost_itct_cache *itct_cache = debugfs_itct_cache->cache; - u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4; - int i, tab_idx; - __le64 *itct; - - for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_NUM; i++, itct_cache++) { - /* - * Data struct of ITCT cache: - * Data[1]: BIT0~15: Table index - * Bit16: Valid mask - * Data[2]~[9]: ITCT table - */ - tab_idx = itct_cache->data[1] & 0xffff; - itct = (__le64 *)itct_cache; - - hisi_sas_show_row_64(s, tab_idx, cache_size, itct); - } - - return 0; -} - -static int hisi_sas_debugfs_itct_cache_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_itct_cache_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_itct_cache_fops = { - .open = hisi_sas_debugfs_itct_cache_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) -{ - u64 *debugfs_timestamp; - int dump_index = hisi_hba->debugfs_dump_index; - struct dentry *dump_dentry; - struct dentry *dentry; - char name[256]; - int p; - int c; - int d; - - snprintf(name, 256, "%d", dump_index); - - dump_dentry = debugfs_create_dir(name, hisi_hba->debugfs_dump_dentry); - - debugfs_timestamp = &hisi_hba->debugfs_timestamp[dump_index]; - - debugfs_create_u64("timestamp", 0400, dump_dentry, - debugfs_timestamp); - - debugfs_create_file("global", 0400, dump_dentry, - &hisi_hba->debugfs_regs[dump_index][DEBUGFS_GLOBAL], - &hisi_sas_debugfs_global_fops); - - /* Create port dir and files */ - dentry = debugfs_create_dir("port", dump_dentry); - for (p = 0; p < hisi_hba->n_phy; p++) { - snprintf(name, 256, "%d", p); - - debugfs_create_file(name, 0400, dentry, - &hisi_hba->debugfs_port_reg[dump_index][p], - &hisi_sas_debugfs_port_fops); - } - - /* Create CQ dir and files */ - dentry = debugfs_create_dir("cq", dump_dentry); - for (c = 0; c < hisi_hba->queue_count; c++) { - snprintf(name, 256, "%d", c); - - debugfs_create_file(name, 0400, dentry, - &hisi_hba->debugfs_cq[dump_index][c], - &hisi_sas_debugfs_cq_fops); - } - - /* Create DQ dir and files */ - dentry = debugfs_create_dir("dq", dump_dentry); - for (d = 0; d < hisi_hba->queue_count; d++) { - snprintf(name, 256, "%d", d); - - debugfs_create_file(name, 0400, dentry, - &hisi_hba->debugfs_dq[dump_index][d], - &hisi_sas_debugfs_dq_fops); - } - - debugfs_create_file("iost", 0400, dump_dentry, - &hisi_hba->debugfs_iost[dump_index], - &hisi_sas_debugfs_iost_fops); - - debugfs_create_file("iost_cache", 0400, dump_dentry, - &hisi_hba->debugfs_iost_cache[dump_index], - &hisi_sas_debugfs_iost_cache_fops); - - debugfs_create_file("itct", 0400, dump_dentry, - &hisi_hba->debugfs_itct[dump_index], - &hisi_sas_debugfs_itct_fops); - - debugfs_create_file("itct_cache", 0400, dump_dentry, - &hisi_hba->debugfs_itct_cache[dump_index], - &hisi_sas_debugfs_itct_cache_fops); - - debugfs_create_file("axi", 0400, dump_dentry, - &hisi_hba->debugfs_regs[dump_index][DEBUGFS_AXI], - &hisi_sas_debugfs_axi_fops); - - debugfs_create_file("ras", 0400, dump_dentry, - &hisi_hba->debugfs_regs[dump_index][DEBUGFS_RAS], - &hisi_sas_debugfs_ras_fops); - - return; -} - -static void hisi_sas_debugfs_snapshot_regs(struct hisi_hba *hisi_hba) -{ - hisi_hba->hw->snapshot_prepare(hisi_hba); - - hisi_sas_debugfs_snapshot_global_reg(hisi_hba); - hisi_sas_debugfs_snapshot_port_reg(hisi_hba); - hisi_sas_debugfs_snapshot_axi_reg(hisi_hba); - hisi_sas_debugfs_snapshot_ras_reg(hisi_hba); - hisi_sas_debugfs_snapshot_cq_reg(hisi_hba); - hisi_sas_debugfs_snapshot_dq_reg(hisi_hba); - hisi_sas_debugfs_snapshot_itct_reg(hisi_hba); - hisi_sas_debugfs_snapshot_iost_reg(hisi_hba); - - hisi_sas_debugfs_create_files(hisi_hba); - - hisi_hba->hw->snapshot_restore(hisi_hba); -} - -static ssize_t hisi_sas_debugfs_trigger_dump_write(struct file *file, - const char __user *user_buf, - size_t count, loff_t *ppos) -{ - 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; - - if (copy_from_user(buf, user_buf, count)) - return -EFAULT; - - if (buf[0] != '1') - return -EFAULT; - - queue_work(hisi_hba->wq, &hisi_hba->debugfs_work); - - return count; -} - -static const struct file_operations hisi_sas_debugfs_trigger_dump_fops = { - .write = &hisi_sas_debugfs_trigger_dump_write, - .owner = THIS_MODULE, -}; - -enum { - HISI_SAS_BIST_LOOPBACK_MODE_DIGITAL = 0, - HISI_SAS_BIST_LOOPBACK_MODE_SERDES, - HISI_SAS_BIST_LOOPBACK_MODE_REMOTE, -}; - -static const struct { - int value; - char *name; -} hisi_sas_debugfs_loop_linkrate[] = { - { SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" }, - { SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" }, - { SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" }, - { SAS_LINK_RATE_12_0_GBPS, "12.0 Gbit" }, -}; - -static int hisi_sas_debugfs_bist_linkrate_show(struct seq_file *s, void *p) -{ - struct hisi_hba *hisi_hba = s->private; - int i; - - for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_linkrate); i++) { - int match = (hisi_hba->debugfs_bist_linkrate == - hisi_sas_debugfs_loop_linkrate[i].value); - - seq_printf(s, "%s%s%s ", match ? "[" : "", - hisi_sas_debugfs_loop_linkrate[i].name, - match ? "]" : ""); - } - seq_puts(s, "\n"); - - return 0; -} - -static ssize_t hisi_sas_debugfs_bist_linkrate_write(struct file *filp, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct seq_file *m = filp->private_data; - struct hisi_hba *hisi_hba = m->private; - char kbuf[16] = {}, *pkbuf; - bool found = false; - int i; - - if (hisi_hba->debugfs_bist_enable) - return -EPERM; - - if (count >= sizeof(kbuf)) - return -EOVERFLOW; - - if (copy_from_user(kbuf, buf, count)) - return -EINVAL; - - pkbuf = strstrip(kbuf); - - for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_linkrate); i++) { - if (!strncmp(hisi_sas_debugfs_loop_linkrate[i].name, - pkbuf, 16)) { - hisi_hba->debugfs_bist_linkrate = - hisi_sas_debugfs_loop_linkrate[i].value; - found = true; - break; - } - } - - if (!found) - return -EINVAL; - - return count; -} - -static int hisi_sas_debugfs_bist_linkrate_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_bist_linkrate_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_bist_linkrate_ops = { - .open = hisi_sas_debugfs_bist_linkrate_open, - .read = seq_read, - .write = hisi_sas_debugfs_bist_linkrate_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static const struct { - int value; - char *name; -} hisi_sas_debugfs_loop_code_mode[] = { - { HISI_SAS_BIST_CODE_MODE_PRBS7, "PRBS7" }, - { HISI_SAS_BIST_CODE_MODE_PRBS23, "PRBS23" }, - { HISI_SAS_BIST_CODE_MODE_PRBS31, "PRBS31" }, - { HISI_SAS_BIST_CODE_MODE_JTPAT, "JTPAT" }, - { HISI_SAS_BIST_CODE_MODE_CJTPAT, "CJTPAT" }, - { HISI_SAS_BIST_CODE_MODE_SCRAMBED_0, "SCRAMBED_0" }, - { HISI_SAS_BIST_CODE_MODE_TRAIN, "TRAIN" }, - { HISI_SAS_BIST_CODE_MODE_TRAIN_DONE, "TRAIN_DONE" }, - { HISI_SAS_BIST_CODE_MODE_HFTP, "HFTP" }, - { HISI_SAS_BIST_CODE_MODE_MFTP, "MFTP" }, - { HISI_SAS_BIST_CODE_MODE_LFTP, "LFTP" }, - { HISI_SAS_BIST_CODE_MODE_FIXED_DATA, "FIXED_DATA" }, -}; - -static int hisi_sas_debugfs_bist_code_mode_show(struct seq_file *s, void *p) -{ - struct hisi_hba *hisi_hba = s->private; - int i; - - for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_code_mode); i++) { - int match = (hisi_hba->debugfs_bist_code_mode == - hisi_sas_debugfs_loop_code_mode[i].value); - - seq_printf(s, "%s%s%s ", match ? "[" : "", - hisi_sas_debugfs_loop_code_mode[i].name, - match ? "]" : ""); - } - seq_puts(s, "\n"); - - return 0; -} - -static ssize_t hisi_sas_debugfs_bist_code_mode_write(struct file *filp, - const char __user *buf, - size_t count, - loff_t *ppos) -{ - struct seq_file *m = filp->private_data; - struct hisi_hba *hisi_hba = m->private; - char kbuf[16] = {}, *pkbuf; - bool found = false; - int i; - - if (hisi_hba->debugfs_bist_enable) - return -EPERM; - - if (count >= sizeof(kbuf)) - return -EINVAL; - - if (copy_from_user(kbuf, buf, count)) - return -EOVERFLOW; - - pkbuf = strstrip(kbuf); - - for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_code_mode); i++) { - if (!strncmp(hisi_sas_debugfs_loop_code_mode[i].name, - pkbuf, 16)) { - hisi_hba->debugfs_bist_code_mode = - hisi_sas_debugfs_loop_code_mode[i].value; - found = true; - break; - } - } - - if (!found) - return -EINVAL; - - return count; -} - -static int hisi_sas_debugfs_bist_code_mode_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_bist_code_mode_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_bist_code_mode_ops = { - .open = hisi_sas_debugfs_bist_code_mode_open, - .read = seq_read, - .write = hisi_sas_debugfs_bist_code_mode_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static ssize_t hisi_sas_debugfs_bist_phy_write(struct file *filp, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct seq_file *m = filp->private_data; - struct hisi_hba *hisi_hba = m->private; - unsigned int phy_no; - int val; - - if (hisi_hba->debugfs_bist_enable) - return -EPERM; - - val = kstrtouint_from_user(buf, count, 0, &phy_no); - if (val) - return val; - - if (phy_no >= hisi_hba->n_phy) - return -EINVAL; - - hisi_hba->debugfs_bist_phy_no = phy_no; - - return count; -} - -static int hisi_sas_debugfs_bist_phy_show(struct seq_file *s, void *p) -{ - struct hisi_hba *hisi_hba = s->private; - - seq_printf(s, "%d\n", hisi_hba->debugfs_bist_phy_no); - - return 0; -} - -static int hisi_sas_debugfs_bist_phy_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_bist_phy_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_bist_phy_ops = { - .open = hisi_sas_debugfs_bist_phy_open, - .read = seq_read, - .write = hisi_sas_debugfs_bist_phy_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static const struct { - int value; - char *name; -} hisi_sas_debugfs_loop_modes[] = { - { HISI_SAS_BIST_LOOPBACK_MODE_DIGITAL, "digital" }, - { HISI_SAS_BIST_LOOPBACK_MODE_SERDES, "serdes" }, - { HISI_SAS_BIST_LOOPBACK_MODE_REMOTE, "remote" }, -}; - -static int hisi_sas_debugfs_bist_mode_show(struct seq_file *s, void *p) -{ - struct hisi_hba *hisi_hba = s->private; - int i; - - for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_modes); i++) { - int match = (hisi_hba->debugfs_bist_mode == - hisi_sas_debugfs_loop_modes[i].value); - - seq_printf(s, "%s%s%s ", match ? "[" : "", - hisi_sas_debugfs_loop_modes[i].name, - match ? "]" : ""); - } - seq_puts(s, "\n"); - - return 0; -} - -static ssize_t hisi_sas_debugfs_bist_mode_write(struct file *filp, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct seq_file *m = filp->private_data; - struct hisi_hba *hisi_hba = m->private; - char kbuf[16] = {}, *pkbuf; - bool found = false; - int i; - - if (hisi_hba->debugfs_bist_enable) - return -EPERM; - - if (count >= sizeof(kbuf)) - return -EINVAL; - - if (copy_from_user(kbuf, buf, count)) - return -EOVERFLOW; - - pkbuf = strstrip(kbuf); - - for (i = 0; i < ARRAY_SIZE(hisi_sas_debugfs_loop_modes); i++) { - if (!strncmp(hisi_sas_debugfs_loop_modes[i].name, pkbuf, 16)) { - hisi_hba->debugfs_bist_mode = - hisi_sas_debugfs_loop_modes[i].value; - found = true; - break; - } - } - - if (!found) - return -EINVAL; - - return count; -} - -static int hisi_sas_debugfs_bist_mode_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_bist_mode_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_bist_mode_ops = { - .open = hisi_sas_debugfs_bist_mode_open, - .read = seq_read, - .write = hisi_sas_debugfs_bist_mode_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static ssize_t hisi_sas_debugfs_bist_enable_write(struct file *filp, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct seq_file *m = filp->private_data; - struct hisi_hba *hisi_hba = m->private; - unsigned int enable; - int val; - - val = kstrtouint_from_user(buf, count, 0, &enable); - if (val) - return val; - - if (enable > 1) - return -EINVAL; - - if (enable == hisi_hba->debugfs_bist_enable) - return count; - - if (!hisi_hba->hw->set_bist) - return -EPERM; - - val = hisi_hba->hw->set_bist(hisi_hba, enable); - if (val < 0) - return val; - - hisi_hba->debugfs_bist_enable = enable; - - return count; -} - -static int hisi_sas_debugfs_bist_enable_show(struct seq_file *s, void *p) -{ - struct hisi_hba *hisi_hba = s->private; - - seq_printf(s, "%d\n", hisi_hba->debugfs_bist_enable); - - return 0; -} - -static int hisi_sas_debugfs_bist_enable_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_bist_enable_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_bist_enable_ops = { - .open = hisi_sas_debugfs_bist_enable_open, - .read = seq_read, - .write = hisi_sas_debugfs_bist_enable_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static const struct { - char *name; -} hisi_sas_debugfs_ffe_name[FFE_CFG_MAX] = { - { "SAS_1_5_GBPS" }, - { "SAS_3_0_GBPS" }, - { "SAS_6_0_GBPS" }, - { "SAS_12_0_GBPS" }, - { "FFE_RESV" }, - { "SATA_1_5_GBPS" }, - { "SATA_3_0_GBPS" }, - { "SATA_6_0_GBPS" }, -}; - -static ssize_t hisi_sas_debugfs_write(struct file *filp, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct seq_file *m = filp->private_data; - u32 *val = m->private; - int res; - - res = kstrtouint_from_user(buf, count, 0, val); - if (res) - return res; - - return count; -} - -static int hisi_sas_debugfs_show(struct seq_file *s, void *p) -{ - u32 *val = s->private; - - seq_printf(s, "0x%x\n", *val); - - return 0; -} - -static int hisi_sas_debugfs_open(struct inode *inode, struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_ops = { - .open = hisi_sas_debugfs_open, - .read = seq_read, - .write = hisi_sas_debugfs_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static ssize_t hisi_sas_debugfs_phy_down_cnt_write(struct file *filp, - const char __user *buf, - size_t count, loff_t *ppos) -{ - struct seq_file *s = filp->private_data; - struct hisi_sas_phy *phy = s->private; - unsigned int set_val; - int res; - - res = kstrtouint_from_user(buf, count, 0, &set_val); - if (res) - return res; - - if (set_val > 0) - return -EINVAL; - - atomic_set(&phy->down_cnt, 0); - - return count; -} - -static int hisi_sas_debugfs_phy_down_cnt_show(struct seq_file *s, void *p) -{ - struct hisi_sas_phy *phy = s->private; - - seq_printf(s, "%d\n", atomic_read(&phy->down_cnt)); - - return 0; -} - -static int hisi_sas_debugfs_phy_down_cnt_open(struct inode *inode, - struct file *filp) -{ - return single_open(filp, hisi_sas_debugfs_phy_down_cnt_show, - inode->i_private); -} - -static const struct file_operations hisi_sas_debugfs_phy_down_cnt_ops = { - .open = hisi_sas_debugfs_phy_down_cnt_open, - .read = seq_read, - .write = hisi_sas_debugfs_phy_down_cnt_write, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -void hisi_sas_debugfs_work_handler(struct work_struct *work) -{ - struct hisi_hba *hisi_hba = - container_of(work, struct hisi_hba, debugfs_work); - 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; - - hisi_sas_debugfs_snapshot_regs(hisi_hba); - hisi_hba->debugfs_dump_index++; -} -EXPORT_SYMBOL_GPL(hisi_sas_debugfs_work_handler); - -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[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[dump_index][i].hdr); - - for (i = 0; i < hisi_hba->queue_count; i++) - 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[dump_index][i].data); - - for (i = 0; i < hisi_hba->n_phy; i++) - devm_kfree(dev, hisi_hba->debugfs_port_reg[dump_index][i].data); -} - -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, i; - size_t sz; - - for (r = 0; r < DEBUGFS_REGS_NUM; r++) { - struct hisi_sas_debugfs_regs *regs = - &hisi_hba->debugfs_regs[dump_index][r]; - - 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++) { - struct hisi_sas_debugfs_port *port = - &hisi_hba->debugfs_port_reg[dump_index][p]; - - port->data = devm_kmalloc(dev, sz, GFP_KERNEL); - if (!port->data) - goto fail; - port->phy = &hisi_hba->phy[p]; - } - - 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[dump_index][c]; - - cq->complete_hdr = devm_kmalloc(dev, sz, GFP_KERNEL); - if (!cq->complete_hdr) - goto fail; - cq->cq = &hisi_hba->cq[c]; - } - - 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[dump_index][d]; - - dq->hdr = devm_kmalloc(dev, sz, GFP_KERNEL); - if (!dq->hdr) - goto fail; - dq->dq = &hisi_hba->dq[d]; - } - - sz = HISI_SAS_MAX_COMMANDS * sizeof(struct hisi_sas_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[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[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[dump_index].itct = - devm_kmalloc(dev, sz, GFP_KERNEL); - if (!hisi_hba->debugfs_itct[dump_index].itct) - goto fail; - - return 0; -fail: - for (i = 0; i < hisi_sas_debugfs_dump_count; i++) - hisi_sas_debugfs_release(hisi_hba, i); - return -ENOMEM; -} - -static void hisi_sas_debugfs_phy_down_cnt_init(struct hisi_hba *hisi_hba) -{ - struct dentry *dir = debugfs_create_dir("phy_down_cnt", - hisi_hba->debugfs_dir); - char name[16]; - int phy_no; - - for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { - snprintf(name, 16, "%d", phy_no); - debugfs_create_file(name, 0600, dir, - &hisi_hba->phy[phy_no], - &hisi_sas_debugfs_phy_down_cnt_ops); - } -} - -static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba) -{ - struct dentry *ports_dentry; - int phy_no; - - hisi_hba->debugfs_bist_dentry = - debugfs_create_dir("bist", hisi_hba->debugfs_dir); - debugfs_create_file("link_rate", 0600, - hisi_hba->debugfs_bist_dentry, hisi_hba, - &hisi_sas_debugfs_bist_linkrate_ops); - - debugfs_create_file("code_mode", 0600, - hisi_hba->debugfs_bist_dentry, hisi_hba, - &hisi_sas_debugfs_bist_code_mode_ops); - - debugfs_create_file("fixed_code", 0600, - hisi_hba->debugfs_bist_dentry, - &hisi_hba->debugfs_bist_fixed_code[0], - &hisi_sas_debugfs_ops); - - debugfs_create_file("fixed_code_1", 0600, - hisi_hba->debugfs_bist_dentry, - &hisi_hba->debugfs_bist_fixed_code[1], - &hisi_sas_debugfs_ops); - - debugfs_create_file("phy_id", 0600, hisi_hba->debugfs_bist_dentry, - hisi_hba, &hisi_sas_debugfs_bist_phy_ops); - - debugfs_create_u32("cnt", 0600, hisi_hba->debugfs_bist_dentry, - &hisi_hba->debugfs_bist_cnt); - - debugfs_create_file("loopback_mode", 0600, - hisi_hba->debugfs_bist_dentry, - hisi_hba, &hisi_sas_debugfs_bist_mode_ops); - - debugfs_create_file("enable", 0600, hisi_hba->debugfs_bist_dentry, - hisi_hba, &hisi_sas_debugfs_bist_enable_ops); - - ports_dentry = debugfs_create_dir("port", hisi_hba->debugfs_bist_dentry); - - for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { - struct dentry *port_dentry; - struct dentry *ffe_dentry; - char name[256]; - int i; - - snprintf(name, 256, "%d", phy_no); - port_dentry = debugfs_create_dir(name, ports_dentry); - ffe_dentry = debugfs_create_dir("ffe", port_dentry); - for (i = 0; i < FFE_CFG_MAX; i++) { - if (i == FFE_RESV) - continue; - debugfs_create_file(hisi_sas_debugfs_ffe_name[i].name, - 0600, ffe_dentry, - &hisi_hba->debugfs_bist_ffe[phy_no][i], - &hisi_sas_debugfs_ops); - } - } - - hisi_hba->debugfs_bist_linkrate = SAS_LINK_RATE_1_5_GBPS; -} - -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); - debugfs_create_file("trigger_dump", 0200, - hisi_hba->debugfs_dir, - hisi_hba, - &hisi_sas_debugfs_trigger_dump_fops); - - /* create bist structures */ - hisi_sas_debugfs_bist_init(hisi_hba); - - hisi_hba->debugfs_dump_dentry = - debugfs_create_dir("dump", hisi_hba->debugfs_dir); - - hisi_sas_debugfs_phy_down_cnt_init(hisi_hba); - - for (i = 0; i < hisi_sas_debugfs_dump_count; 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); - -void hisi_sas_debugfs_exit(struct hisi_hba *hisi_hba) -{ - debugfs_remove_recursive(hisi_hba->debugfs_dir); -} -EXPORT_SYMBOL_GPL(hisi_sas_debugfs_exit); - int hisi_sas_remove(struct platform_device *pdev) { struct sas_ha_struct *sha = platform_get_drvdata(pdev); @@ -4069,6 +2726,9 @@ EXPORT_SYMBOL_GPL(hisi_sas_debugfs_dump_count); module_param_named(debugfs_dump_count, hisi_sas_debugfs_dump_count, uint, 0444); MODULE_PARM_DESC(hisi_sas_debugfs_dump_count, "Number of debugfs dumps to allow");
+struct dentry *hisi_sas_debugfs_dir; +EXPORT_SYMBOL_GPL(hisi_sas_debugfs_dir); + static __init int hisi_sas_init(void) { hisi_sas_stt = sas_domain_attach_transport(&hisi_sas_transport_ops); diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 1d7365ca9932..e1b1ab012fa9 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -522,6 +522,8 @@ module_param(auto_affine_msi_experimental, bool, 0444); MODULE_PARM_DESC(auto_affine_msi_experimental, "Enable auto-affinity of MSI IRQs as experimental:\n" "default is off");
+static void debugfs_work_handler_v3_hw(struct work_struct *work); + static u32 hisi_sas_read32(struct hisi_hba *hisi_hba, u32 off) { void __iomem *regs = hisi_hba->regs + off; @@ -2757,6 +2759,19 @@ static struct device_attribute *host_attrs_v3_hw[] = { NULL };
+#define HISI_SAS_DEBUGFS_REG(x) {#x, x} + +struct hisi_sas_debugfs_reg_lu { + char *name; + int off; +}; + +struct hisi_sas_debugfs_reg { + const struct hisi_sas_debugfs_reg_lu *lu; + int count; + int base_off; +}; + static const struct hisi_sas_debugfs_reg_lu debugfs_port_reg_lu[] = { HISI_SAS_DEBUGFS_REG(PHY_CFG), HISI_SAS_DEBUGFS_REG(HARD_PHY_LINKRATE), @@ -2812,7 +2827,6 @@ static const struct hisi_sas_debugfs_reg debugfs_port_reg = { .lu = debugfs_port_reg_lu, .count = 0x100, .base_off = PORT_BASE, - .read_port_reg = hisi_sas_phy_read32, };
static const struct hisi_sas_debugfs_reg_lu debugfs_global_reg_lu[] = { @@ -2885,7 +2899,6 @@ static const struct hisi_sas_debugfs_reg_lu debugfs_global_reg_lu[] = { static const struct hisi_sas_debugfs_reg debugfs_global_reg = { .lu = debugfs_global_reg_lu, .count = 0x800, - .read_global_reg = hisi_sas_read32, };
static const struct hisi_sas_debugfs_reg_lu debugfs_axi_reg_lu[] = { @@ -2900,7 +2913,6 @@ static const struct hisi_sas_debugfs_reg debugfs_axi_reg = { .lu = debugfs_axi_reg_lu, .count = 0x61, .base_off = AXI_MASTER_CFG_BASE, - .read_global_reg = hisi_sas_read32, };
static const struct hisi_sas_debugfs_reg_lu debugfs_ras_reg_lu[] = { @@ -2918,7 +2930,6 @@ static const struct hisi_sas_debugfs_reg debugfs_ras_reg = { .lu = debugfs_ras_reg_lu, .count = 0x10, .base_off = RAS_BASE, - .read_global_reg = hisi_sas_read32, };
static void debugfs_snapshot_prepare_v3_hw(struct hisi_hba *hisi_hba) @@ -3161,14 +3172,6 @@ static const struct hisi_sas_hw hisi_sas_v3_hw = { .get_events = phy_get_events_v3_hw, .write_gpio = write_gpio_v3_hw, .wait_cmds_complete_timeout = wait_cmds_complete_timeout_v3_hw, - .debugfs_reg_array[DEBUGFS_GLOBAL] = &debugfs_global_reg, - .debugfs_reg_array[DEBUGFS_AXI] = &debugfs_axi_reg, - .debugfs_reg_array[DEBUGFS_RAS] = &debugfs_ras_reg, - .debugfs_reg_port = &debugfs_port_reg, - .snapshot_prepare = debugfs_snapshot_prepare_v3_hw, - .snapshot_restore = debugfs_snapshot_restore_v3_hw, - .read_iost_itct_cache = read_iost_itct_cache_v3_hw, - .set_bist = debugfs_set_bist_v3_hw, };
static struct Scsi_Host * @@ -3186,7 +3189,7 @@ 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, hisi_sas_debugfs_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; @@ -3214,6 +3217,1196 @@ hisi_sas_shost_alloc_pci(struct pci_dev *pdev) return NULL; }
+static void debugfs_snapshot_cq_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int queue_entry_size = hisi_hba->hw->complete_hdr_size; + int dump_index = hisi_hba->debugfs_dump_index; + int i; + + for (i = 0; i < hisi_hba->queue_count; i++) + memcpy(hisi_hba->debugfs_cq[dump_index][i].complete_hdr, + hisi_hba->complete_hdr[i], + HISI_SAS_QUEUE_SLOTS * queue_entry_size); +} + +static void debugfs_snapshot_dq_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int queue_entry_size = sizeof(struct hisi_sas_cmd_hdr); + int dump_index = hisi_hba->debugfs_dump_index; + int i; + + for (i = 0; i < hisi_hba->queue_count; i++) { + struct hisi_sas_cmd_hdr *debugfs_cmd_hdr, *cmd_hdr; + int j; + + debugfs_cmd_hdr = hisi_hba->debugfs_dq[dump_index][i].hdr; + cmd_hdr = hisi_hba->cmd_hdr[i]; + + for (j = 0; j < HISI_SAS_QUEUE_SLOTS; j++) + memcpy(&debugfs_cmd_hdr[j], &cmd_hdr[j], + queue_entry_size); + } +} + +static void debugfs_snapshot_port_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int dump_index = hisi_hba->debugfs_dump_index; + const struct hisi_sas_debugfs_reg *port = &debugfs_port_reg; + int i, phy_cnt; + u32 offset; + u32 *databuf; + + for (phy_cnt = 0; phy_cnt < hisi_hba->n_phy; phy_cnt++) { + databuf = hisi_hba->debugfs_port_reg[dump_index][phy_cnt].data; + for (i = 0; i < port->count; i++, databuf++) { + offset = port->base_off + 4 * i; + *databuf = hisi_sas_phy_read32(hisi_hba, phy_cnt, + offset); + } + } +} + +static void debugfs_snapshot_global_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int dump_index = hisi_hba->debugfs_dump_index; + u32 *databuf = hisi_hba->debugfs_regs[dump_index][DEBUGFS_GLOBAL].data; + int i; + + for (i = 0; i < debugfs_axi_reg.count; i++, databuf++) + *databuf = hisi_sas_read32(hisi_hba, 4 * i); +} + +static void debugfs_snapshot_axi_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int dump_index = hisi_hba->debugfs_dump_index; + u32 *databuf = hisi_hba->debugfs_regs[dump_index][DEBUGFS_AXI].data; + const struct hisi_sas_debugfs_reg *axi = &debugfs_axi_reg; + int i; + + for (i = 0; i < axi->count; i++, databuf++) + *databuf = hisi_sas_read32(hisi_hba, 4 * i + axi->base_off); +} + +static void debugfs_snapshot_ras_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int dump_index = hisi_hba->debugfs_dump_index; + u32 *databuf = hisi_hba->debugfs_regs[dump_index][DEBUGFS_RAS].data; + const struct hisi_sas_debugfs_reg *ras = &debugfs_ras_reg; + int i; + + for (i = 0; i < ras->count; i++, databuf++) + *databuf = hisi_sas_read32(hisi_hba, 4 * i + ras->base_off); +} + +static void debugfs_snapshot_itct_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int dump_index = hisi_hba->debugfs_dump_index; + void *cachebuf = hisi_hba->debugfs_itct_cache[dump_index].cache; + void *databuf = hisi_hba->debugfs_itct[dump_index].itct; + struct hisi_sas_itct *itct; + int i; + + read_iost_itct_cache_v3_hw(hisi_hba, HISI_SAS_ITCT_CACHE, cachebuf); + + itct = hisi_hba->itct; + + for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) { + memcpy(databuf, itct, sizeof(struct hisi_sas_itct)); + databuf += sizeof(struct hisi_sas_itct); + } +} + +static void debugfs_snapshot_iost_reg_v3_hw(struct hisi_hba *hisi_hba) +{ + int dump_index = hisi_hba->debugfs_dump_index; + int max_command_entries = HISI_SAS_MAX_COMMANDS; + void *cachebuf = hisi_hba->debugfs_iost_cache[dump_index].cache; + void *databuf = hisi_hba->debugfs_iost[dump_index].iost; + struct hisi_sas_iost *iost; + int i; + + read_iost_itct_cache_v3_hw(hisi_hba, HISI_SAS_IOST_CACHE, cachebuf); + + iost = hisi_hba->iost; + + for (i = 0; i < max_command_entries; i++, iost++) { + memcpy(databuf, iost, sizeof(struct hisi_sas_iost)); + databuf += sizeof(struct hisi_sas_iost); + } +} + +static const char * +debugfs_to_reg_name_v3_hw(int off, int base_off, + const struct hisi_sas_debugfs_reg_lu *lu) +{ + for (; lu->name; lu++) { + if (off == lu->off - base_off) + return lu->name; + } + + return NULL; +} + +static void debugfs_print_reg_v3_hw(u32 *regs_val, struct seq_file *s, + const struct hisi_sas_debugfs_reg *reg) +{ + int i; + + for (i = 0; i < reg->count; i++) { + int off = i * 4; + const char *name; + + name = debugfs_to_reg_name_v3_hw(off, reg->base_off, + reg->lu); + + if (name) + seq_printf(s, "0x%08x 0x%08x %s\n", off, + regs_val[i], name); + else + seq_printf(s, "0x%08x 0x%08x\n", off, + regs_val[i]); + } +} + +static int debugfs_global_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_regs *global = s->private; + + debugfs_print_reg_v3_hw(global->data, s, + &debugfs_global_reg); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_global_v3_hw); + +static int debugfs_axi_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_regs *axi = s->private; + + debugfs_print_reg_v3_hw(axi->data, s, + &debugfs_axi_reg); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_axi_v3_hw); + +static int debugfs_ras_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_regs *ras = s->private; + + debugfs_print_reg_v3_hw(ras->data, s, + &debugfs_ras_reg); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_ras_v3_hw); + +static int debugfs_port_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_port *port = s->private; + const struct hisi_sas_debugfs_reg *reg_port = &debugfs_port_reg; + + debugfs_print_reg_v3_hw(port->data, s, reg_port); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_port_v3_hw); + +static void debugfs_show_row_64_v3_hw(struct seq_file *s, int index, + int sz, __le64 *ptr) +{ + int i; + + /* completion header size not fixed per HW version */ + seq_printf(s, "index %04d:\n\t", index); + for (i = 1; i <= sz / 8; i++, ptr++) { + seq_printf(s, " 0x%016llx", le64_to_cpu(*ptr)); + if (!(i % 2)) + seq_puts(s, "\n\t"); + } + + seq_puts(s, "\n"); +} + +static void debugfs_show_row_32_v3_hw(struct seq_file *s, int index, + int sz, __le32 *ptr) +{ + int i; + + /* completion header size not fixed per HW version */ + seq_printf(s, "index %04d:\n\t", index); + for (i = 1; i <= sz / 4; i++, ptr++) { + seq_printf(s, " 0x%08x", le32_to_cpu(*ptr)); + if (!(i % 4)) + seq_puts(s, "\n\t"); + } + seq_puts(s, "\n"); +} + +static void debugfs_cq_show_slot_v3_hw(struct seq_file *s, int slot, + struct hisi_sas_debugfs_cq *debugfs_cq) +{ + struct hisi_sas_cq *cq = debugfs_cq->cq; + struct hisi_hba *hisi_hba = cq->hisi_hba; + __le32 *complete_hdr = debugfs_cq->complete_hdr + + (hisi_hba->hw->complete_hdr_size * slot); + + debugfs_show_row_32_v3_hw(s, slot, + hisi_hba->hw->complete_hdr_size, + complete_hdr); +} + +static int debugfs_cq_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_cq *debugfs_cq = s->private; + int slot; + + for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) + debugfs_cq_show_slot_v3_hw(s, slot, debugfs_cq); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_cq_v3_hw); + +static void debugfs_dq_show_slot_v3_hw(struct seq_file *s, int slot, + void *dq_ptr) +{ + struct hisi_sas_debugfs_dq *debugfs_dq = dq_ptr; + void *cmd_queue = debugfs_dq->hdr; + __le32 *cmd_hdr = cmd_queue + + sizeof(struct hisi_sas_cmd_hdr) * slot; + + debugfs_show_row_32_v3_hw(s, slot, sizeof(struct hisi_sas_cmd_hdr), + cmd_hdr); +} + +static int debugfs_dq_v3_hw_show(struct seq_file *s, void *p) +{ + int slot; + + for (slot = 0; slot < HISI_SAS_QUEUE_SLOTS; slot++) + debugfs_dq_show_slot_v3_hw(s, slot, s->private); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_dq_v3_hw); + +static int debugfs_iost_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_iost *debugfs_iost = s->private; + struct hisi_sas_iost *iost = debugfs_iost->iost; + int i, max_command_entries = HISI_SAS_MAX_COMMANDS; + + for (i = 0; i < max_command_entries; i++, iost++) { + __le64 *data = &iost->qw0; + + debugfs_show_row_64_v3_hw(s, i, sizeof(*iost), data); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_iost_v3_hw); + +static int debugfs_iost_cache_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_iost_cache *debugfs_iost_cache = s->private; + struct hisi_sas_iost_itct_cache *iost_cache = + debugfs_iost_cache->cache; + u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4; + int i, tab_idx; + __le64 *iost; + + for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_NUM; i++, iost_cache++) { + /* + * Data struct of IOST cache: + * Data[1]: BIT0~15: Table index + * Bit16: Valid mask + * Data[2]~[9]: IOST table + */ + tab_idx = (iost_cache->data[1] & 0xffff); + iost = (__le64 *)iost_cache; + + debugfs_show_row_64_v3_hw(s, tab_idx, cache_size, iost); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_iost_cache_v3_hw); + +static int debugfs_itct_v3_hw_show(struct seq_file *s, void *p) +{ + int i; + struct hisi_sas_debugfs_itct *debugfs_itct = s->private; + struct hisi_sas_itct *itct = debugfs_itct->itct; + + for (i = 0; i < HISI_SAS_MAX_ITCT_ENTRIES; i++, itct++) { + __le64 *data = &itct->qw0; + + debugfs_show_row_64_v3_hw(s, i, sizeof(*itct), data); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_itct_v3_hw); + +static int debugfs_itct_cache_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_debugfs_itct_cache *debugfs_itct_cache = s->private; + struct hisi_sas_iost_itct_cache *itct_cache = + debugfs_itct_cache->cache; + u32 cache_size = HISI_SAS_IOST_ITCT_CACHE_DW_SZ * 4; + int i, tab_idx; + __le64 *itct; + + for (i = 0; i < HISI_SAS_IOST_ITCT_CACHE_NUM; i++, itct_cache++) { + /* + * Data struct of ITCT cache: + * Data[1]: BIT0~15: Table index + * Bit16: Valid mask + * Data[2]~[9]: ITCT table + */ + tab_idx = itct_cache->data[1] & 0xffff; + itct = (__le64 *)itct_cache; + + debugfs_show_row_64_v3_hw(s, tab_idx, cache_size, itct); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(debugfs_itct_cache_v3_hw); + +static void debugfs_create_files_v3_hw(struct hisi_hba *hisi_hba) +{ + u64 *debugfs_timestamp; + int dump_index = hisi_hba->debugfs_dump_index; + struct dentry *dump_dentry; + struct dentry *dentry; + char name[256]; + int p; + int c; + int d; + + snprintf(name, 256, "%d", dump_index); + + dump_dentry = debugfs_create_dir(name, hisi_hba->debugfs_dump_dentry); + + debugfs_timestamp = &hisi_hba->debugfs_timestamp[dump_index]; + + debugfs_create_u64("timestamp", 0400, dump_dentry, + debugfs_timestamp); + + debugfs_create_file("global", 0400, dump_dentry, + &hisi_hba->debugfs_regs[dump_index][DEBUGFS_GLOBAL], + &debugfs_global_v3_hw_fops); + + /* Create port dir and files */ + dentry = debugfs_create_dir("port", dump_dentry); + for (p = 0; p < hisi_hba->n_phy; p++) { + snprintf(name, 256, "%d", p); + + debugfs_create_file(name, 0400, dentry, + &hisi_hba->debugfs_port_reg[dump_index][p], + &debugfs_port_v3_hw_fops); + } + + /* Create CQ dir and files */ + dentry = debugfs_create_dir("cq", dump_dentry); + for (c = 0; c < hisi_hba->queue_count; c++) { + snprintf(name, 256, "%d", c); + + debugfs_create_file(name, 0400, dentry, + &hisi_hba->debugfs_cq[dump_index][c], + &debugfs_cq_v3_hw_fops); + } + + /* Create DQ dir and files */ + dentry = debugfs_create_dir("dq", dump_dentry); + for (d = 0; d < hisi_hba->queue_count; d++) { + snprintf(name, 256, "%d", d); + + debugfs_create_file(name, 0400, dentry, + &hisi_hba->debugfs_dq[dump_index][d], + &debugfs_dq_v3_hw_fops); + } + + debugfs_create_file("iost", 0400, dump_dentry, + &hisi_hba->debugfs_iost[dump_index], + &debugfs_iost_v3_hw_fops); + + debugfs_create_file("iost_cache", 0400, dump_dentry, + &hisi_hba->debugfs_iost_cache[dump_index], + &debugfs_iost_cache_v3_hw_fops); + + debugfs_create_file("itct", 0400, dump_dentry, + &hisi_hba->debugfs_itct[dump_index], + &debugfs_itct_v3_hw_fops); + + debugfs_create_file("itct_cache", 0400, dump_dentry, + &hisi_hba->debugfs_itct_cache[dump_index], + &debugfs_itct_cache_v3_hw_fops); + + debugfs_create_file("axi", 0400, dump_dentry, + &hisi_hba->debugfs_regs[dump_index][DEBUGFS_AXI], + &debugfs_axi_v3_hw_fops); + + debugfs_create_file("ras", 0400, dump_dentry, + &hisi_hba->debugfs_regs[dump_index][DEBUGFS_RAS], + &debugfs_ras_v3_hw_fops); +} + +static void debugfs_snapshot_regs_v3_hw(struct hisi_hba *hisi_hba) +{ + 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); +} + +static ssize_t debugfs_trigger_dump_v3_hw_write(struct file *file, + const char __user *user_buf, + size_t count, loff_t *ppos) +{ + 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; + + if (copy_from_user(buf, user_buf, count)) + return -EFAULT; + + if (buf[0] != '1') + return -EFAULT; + + queue_work(hisi_hba->wq, &hisi_hba->debugfs_work); + + return count; +} + +static const struct file_operations debugfs_trigger_dump_v3_hw_fops = { + .write = &debugfs_trigger_dump_v3_hw_write, + .owner = THIS_MODULE, +}; + +enum { + HISI_SAS_BIST_LOOPBACK_MODE_DIGITAL = 0, + HISI_SAS_BIST_LOOPBACK_MODE_SERDES, + HISI_SAS_BIST_LOOPBACK_MODE_REMOTE, +}; + +static const struct { + int value; + char *name; +} debugfs_loop_linkrate_v3_hw[] = { + { SAS_LINK_RATE_1_5_GBPS, "1.5 Gbit" }, + { SAS_LINK_RATE_3_0_GBPS, "3.0 Gbit" }, + { SAS_LINK_RATE_6_0_GBPS, "6.0 Gbit" }, + { SAS_LINK_RATE_12_0_GBPS, "12.0 Gbit" }, +}; + +static int debugfs_bist_linkrate_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + int i; + + for (i = 0; i < ARRAY_SIZE(debugfs_loop_linkrate_v3_hw); i++) { + int match = (hisi_hba->debugfs_bist_linkrate == + debugfs_loop_linkrate_v3_hw[i].value); + + seq_printf(s, "%s%s%s ", match ? "[" : "", + debugfs_loop_linkrate_v3_hw[i].name, + match ? "]" : ""); + } + seq_puts(s, "\n"); + + return 0; +} + +static ssize_t debugfs_bist_linkrate_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + struct hisi_hba *hisi_hba = m->private; + char kbuf[16] = {}, *pkbuf; + bool found = false; + int i; + + if (hisi_hba->debugfs_bist_enable) + return -EPERM; + + if (count >= sizeof(kbuf)) + return -EOVERFLOW; + + if (copy_from_user(kbuf, buf, count)) + return -EINVAL; + + pkbuf = strstrip(kbuf); + + for (i = 0; i < ARRAY_SIZE(debugfs_loop_linkrate_v3_hw); i++) { + if (!strncmp(debugfs_loop_linkrate_v3_hw[i].name, + pkbuf, 16)) { + hisi_hba->debugfs_bist_linkrate = + debugfs_loop_linkrate_v3_hw[i].value; + found = true; + break; + } + } + + if (!found) + return -EINVAL; + + 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, +}; + +static const struct { + int value; + char *name; +} debugfs_loop_code_mode_v3_hw[] = { + { HISI_SAS_BIST_CODE_MODE_PRBS7, "PRBS7" }, + { HISI_SAS_BIST_CODE_MODE_PRBS23, "PRBS23" }, + { HISI_SAS_BIST_CODE_MODE_PRBS31, "PRBS31" }, + { HISI_SAS_BIST_CODE_MODE_JTPAT, "JTPAT" }, + { HISI_SAS_BIST_CODE_MODE_CJTPAT, "CJTPAT" }, + { HISI_SAS_BIST_CODE_MODE_SCRAMBED_0, "SCRAMBED_0" }, + { HISI_SAS_BIST_CODE_MODE_TRAIN, "TRAIN" }, + { HISI_SAS_BIST_CODE_MODE_TRAIN_DONE, "TRAIN_DONE" }, + { HISI_SAS_BIST_CODE_MODE_HFTP, "HFTP" }, + { HISI_SAS_BIST_CODE_MODE_MFTP, "MFTP" }, + { HISI_SAS_BIST_CODE_MODE_LFTP, "LFTP" }, + { HISI_SAS_BIST_CODE_MODE_FIXED_DATA, "FIXED_DATA" }, +}; + +static int debugfs_bist_code_mode_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + int i; + + for (i = 0; i < ARRAY_SIZE(debugfs_loop_code_mode_v3_hw); i++) { + int match = (hisi_hba->debugfs_bist_code_mode == + debugfs_loop_code_mode_v3_hw[i].value); + + seq_printf(s, "%s%s%s ", match ? "[" : "", + debugfs_loop_code_mode_v3_hw[i].name, + match ? "]" : ""); + } + seq_puts(s, "\n"); + + return 0; +} + +static ssize_t debugfs_bist_code_mode_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, + loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + struct hisi_hba *hisi_hba = m->private; + char kbuf[16] = {}, *pkbuf; + bool found = false; + int i; + + if (hisi_hba->debugfs_bist_enable) + return -EPERM; + + if (count >= sizeof(kbuf)) + return -EINVAL; + + if (copy_from_user(kbuf, buf, count)) + return -EOVERFLOW; + + pkbuf = strstrip(kbuf); + + for (i = 0; i < ARRAY_SIZE(debugfs_loop_code_mode_v3_hw); i++) { + if (!strncmp(debugfs_loop_code_mode_v3_hw[i].name, + pkbuf, 16)) { + hisi_hba->debugfs_bist_code_mode = + debugfs_loop_code_mode_v3_hw[i].value; + found = true; + break; + } + } + + if (!found) + return -EINVAL; + + 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, +}; + +static ssize_t debugfs_bist_phy_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + struct hisi_hba *hisi_hba = m->private; + unsigned int phy_no; + int val; + + if (hisi_hba->debugfs_bist_enable) + return -EPERM; + + val = kstrtouint_from_user(buf, count, 0, &phy_no); + if (val) + return val; + + if (phy_no >= hisi_hba->n_phy) + return -EINVAL; + + hisi_hba->debugfs_bist_phy_no = phy_no; + + return count; +} + +static int debugfs_bist_phy_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + + seq_printf(s, "%d\n", hisi_hba->debugfs_bist_phy_no); + + 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, +}; + +static const struct { + int value; + char *name; +} debugfs_loop_modes_v3_hw[] = { + { HISI_SAS_BIST_LOOPBACK_MODE_DIGITAL, "digital" }, + { HISI_SAS_BIST_LOOPBACK_MODE_SERDES, "serdes" }, + { HISI_SAS_BIST_LOOPBACK_MODE_REMOTE, "remote" }, +}; + +static int debugfs_bist_mode_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + int i; + + for (i = 0; i < ARRAY_SIZE(debugfs_loop_modes_v3_hw); i++) { + int match = (hisi_hba->debugfs_bist_mode == + debugfs_loop_modes_v3_hw[i].value); + + seq_printf(s, "%s%s%s ", match ? "[" : "", + debugfs_loop_modes_v3_hw[i].name, + match ? "]" : ""); + } + seq_puts(s, "\n"); + + return 0; +} + +static ssize_t debugfs_bist_mode_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + struct hisi_hba *hisi_hba = m->private; + char kbuf[16] = {}, *pkbuf; + bool found = false; + int i; + + if (hisi_hba->debugfs_bist_enable) + return -EPERM; + + if (count >= sizeof(kbuf)) + return -EINVAL; + + if (copy_from_user(kbuf, buf, count)) + return -EOVERFLOW; + + pkbuf = strstrip(kbuf); + + for (i = 0; i < ARRAY_SIZE(debugfs_loop_modes_v3_hw); i++) { + if (!strncmp(debugfs_loop_modes_v3_hw[i].name, pkbuf, 16)) { + hisi_hba->debugfs_bist_mode = + debugfs_loop_modes_v3_hw[i].value; + found = true; + break; + } + } + + if (!found) + return -EINVAL; + + 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, +}; + +static ssize_t debugfs_bist_enable_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + struct hisi_hba *hisi_hba = m->private; + unsigned int enable; + int val; + + val = kstrtouint_from_user(buf, count, 0, &enable); + if (val) + return val; + + if (enable > 1) + return -EINVAL; + + if (enable == hisi_hba->debugfs_bist_enable) + return count; + + val = debugfs_set_bist_v3_hw(hisi_hba, enable); + if (val < 0) + return val; + + hisi_hba->debugfs_bist_enable = enable; + + return count; +} + +static int debugfs_bist_enable_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_hba *hisi_hba = s->private; + + seq_printf(s, "%d\n", hisi_hba->debugfs_bist_enable); + + 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, +}; + +static const struct { + char *name; +} debugfs_ffe_name_v3_hw[FFE_CFG_MAX] = { + { "SAS_1_5_GBPS" }, + { "SAS_3_0_GBPS" }, + { "SAS_6_0_GBPS" }, + { "SAS_12_0_GBPS" }, + { "FFE_RESV" }, + { "SATA_1_5_GBPS" }, + { "SATA_3_0_GBPS" }, + { "SATA_6_0_GBPS" }, +}; + +static ssize_t debugfs_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + u32 *val = m->private; + int res; + + res = kstrtouint_from_user(buf, count, 0, val); + if (res) + return res; + + return count; +} + +static int debugfs_v3_hw_show(struct seq_file *s, void *p) +{ + u32 *val = s->private; + + seq_printf(s, "0x%x\n", *val); + + 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, +}; + +static ssize_t debugfs_phy_down_cnt_v3_hw_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *s = filp->private_data; + struct hisi_sas_phy *phy = s->private; + unsigned int set_val; + int res; + + res = kstrtouint_from_user(buf, count, 0, &set_val); + if (res) + return res; + + if (set_val > 0) + return -EINVAL; + + atomic_set(&phy->down_cnt, 0); + + return count; +} + +static int debugfs_phy_down_cnt_v3_hw_show(struct seq_file *s, void *p) +{ + struct hisi_sas_phy *phy = s->private; + + seq_printf(s, "%d\n", atomic_read(&phy->down_cnt)); + + 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, +}; + +static void debugfs_work_handler_v3_hw(struct work_struct *work) +{ + struct hisi_hba *hisi_hba = + container_of(work, struct hisi_hba, debugfs_work); + 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_regs_v3_hw(hisi_hba); + hisi_hba->debugfs_dump_index++; +} + +static void debugfs_release_v3_hw(struct hisi_hba *hisi_hba, int dump_index) +{ + struct device *dev = hisi_hba->dev; + int i; + + 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[dump_index][i].hdr); + + for (i = 0; i < hisi_hba->queue_count; i++) + 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[dump_index][i].data); + + for (i = 0; i < hisi_hba->n_phy; i++) + devm_kfree(dev, hisi_hba->debugfs_port_reg[dump_index][i].data); +} + +static const struct hisi_sas_debugfs_reg *debugfs_reg_array_v3_hw[DEBUGFS_REGS_NUM] = { + [DEBUGFS_GLOBAL] = &debugfs_global_reg, + [DEBUGFS_AXI] = &debugfs_axi_reg, + [DEBUGFS_RAS] = &debugfs_ras_reg, +}; + +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; + size_t sz; + + for (r = 0; r < DEBUGFS_REGS_NUM; r++) { + struct hisi_sas_debugfs_regs *regs = + &hisi_hba->debugfs_regs[dump_index][r]; + + sz = debugfs_reg_array_v3_hw[r]->count * 4; + regs->data = devm_kmalloc(dev, sz, GFP_KERNEL); + if (!regs->data) + goto fail; + regs->hisi_hba = hisi_hba; + } + + sz = debugfs_port_reg.count * 4; + for (p = 0; p < hisi_hba->n_phy; p++) { + struct hisi_sas_debugfs_port *port = + &hisi_hba->debugfs_port_reg[dump_index][p]; + + port->data = devm_kmalloc(dev, sz, GFP_KERNEL); + if (!port->data) + goto fail; + port->phy = &hisi_hba->phy[p]; + } + + 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[dump_index][c]; + + cq->complete_hdr = devm_kmalloc(dev, sz, GFP_KERNEL); + if (!cq->complete_hdr) + goto fail; + cq->cq = &hisi_hba->cq[c]; + } + + 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[dump_index][d]; + + dq->hdr = devm_kmalloc(dev, sz, GFP_KERNEL); + if (!dq->hdr) + goto fail; + dq->dq = &hisi_hba->dq[d]; + } + + sz = HISI_SAS_MAX_COMMANDS * sizeof(struct hisi_sas_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[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[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[dump_index].itct = + devm_kmalloc(dev, sz, GFP_KERNEL); + if (!hisi_hba->debugfs_itct[dump_index].itct) + goto fail; + + return 0; +fail: + for (i = 0; i < hisi_sas_debugfs_dump_count; i++) + debugfs_release_v3_hw(hisi_hba, i); + return -ENOMEM; +} + +static void debugfs_phy_down_cnt_init_v3_hw(struct hisi_hba *hisi_hba) +{ + struct dentry *dir = debugfs_create_dir("phy_down_cnt", + hisi_hba->debugfs_dir); + char name[16]; + int phy_no; + + for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { + snprintf(name, 16, "%d", phy_no); + debugfs_create_file(name, 0600, dir, + &hisi_hba->phy[phy_no], + &debugfs_phy_down_cnt_v3_hw_fops); + } +} + +static void debugfs_bist_init_v3_hw(struct hisi_hba *hisi_hba) +{ + struct dentry *ports_dentry; + int phy_no; + + hisi_hba->debugfs_bist_dentry = + debugfs_create_dir("bist", hisi_hba->debugfs_dir); + debugfs_create_file("link_rate", 0600, + hisi_hba->debugfs_bist_dentry, hisi_hba, + &debugfs_bist_linkrate_v3_hw_fops); + + debugfs_create_file("code_mode", 0600, + hisi_hba->debugfs_bist_dentry, hisi_hba, + &debugfs_bist_code_mode_v3_hw_fops); + + debugfs_create_file("fixed_code", 0600, + hisi_hba->debugfs_bist_dentry, + &hisi_hba->debugfs_bist_fixed_code[0], + &debugfs_v3_hw_fops); + + debugfs_create_file("fixed_code_1", 0600, + hisi_hba->debugfs_bist_dentry, + &hisi_hba->debugfs_bist_fixed_code[1], + &debugfs_v3_hw_fops); + + debugfs_create_file("phy_id", 0600, hisi_hba->debugfs_bist_dentry, + hisi_hba, &debugfs_bist_phy_v3_hw_fops); + + debugfs_create_u32("cnt", 0600, hisi_hba->debugfs_bist_dentry, + &hisi_hba->debugfs_bist_cnt); + + debugfs_create_file("loopback_mode", 0600, + hisi_hba->debugfs_bist_dentry, + hisi_hba, &debugfs_bist_mode_v3_hw_fops); + + debugfs_create_file("enable", 0600, hisi_hba->debugfs_bist_dentry, + hisi_hba, &debugfs_bist_enable_v3_hw_fops); + + ports_dentry = debugfs_create_dir("port", hisi_hba->debugfs_bist_dentry); + + for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { + struct dentry *port_dentry; + struct dentry *ffe_dentry; + char name[256]; + int i; + + snprintf(name, 256, "%d", phy_no); + port_dentry = debugfs_create_dir(name, ports_dentry); + ffe_dentry = debugfs_create_dir("ffe", port_dentry); + for (i = 0; i < FFE_CFG_MAX; i++) { + if (i == FFE_RESV) + continue; + debugfs_create_file(debugfs_ffe_name_v3_hw[i].name, + 0600, ffe_dentry, + &hisi_hba->debugfs_bist_ffe[phy_no][i], + &debugfs_v3_hw_fops); + } + } + + hisi_hba->debugfs_bist_linkrate = SAS_LINK_RATE_1_5_GBPS; +} + +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); + debugfs_create_file("trigger_dump", 0200, + hisi_hba->debugfs_dir, + hisi_hba, + &debugfs_trigger_dump_v3_hw_fops); + + /* create bist structures */ + debugfs_bist_init_v3_hw(hisi_hba); + + hisi_hba->debugfs_dump_dentry = + debugfs_create_dir("dump", hisi_hba->debugfs_dir); + + debugfs_phy_down_cnt_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 hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) { @@ -3304,7 +4497,7 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) }
if (hisi_sas_debugfs_enable) - hisi_sas_debugfs_init(hisi_hba); + debugfs_init_v3_hw(hisi_hba);
rc = interrupt_preinit_v3_hw(hisi_hba); if (rc) @@ -3342,7 +4535,7 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) err_out_free_irq_vectors: pci_free_irq_vectors(pdev); err_out_debugfs: - hisi_sas_debugfs_exit(hisi_hba); + debugfs_exit_v3_hw(hisi_hba); err_out_ha: hisi_sas_free(hisi_hba); scsi_host_put(shost); @@ -3389,7 +4582,7 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev) pci_release_regions(pdev); pci_disable_device(pdev); hisi_sas_free(hisi_hba); - hisi_sas_debugfs_exit(hisi_hba); + debugfs_exit_v3_hw(hisi_hba); scsi_host_put(shost); }