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Message-ID: <1545235006-151716-5-git-send-email-john.garry@huawei.com>
Date: Wed, 19 Dec 2018 23:56:42 +0800
From: John Garry <john.garry@...wei.com>
To: <jejb@...ux.vnet.ibm.com>, <martin.petersen@...cle.com>
CC: <linuxarm@...wei.com>, <linux-kernel@...r.kernel.org>,
<linux-scsi@...r.kernel.org>, Luo Jiaxing <luojiaxing@...wei.com>,
John Garry <john.garry@...wei.com>
Subject: [PATCH 4/8] scsi: hisi_sas: Debugfs global register create file and add file operations
From: Luo Jiaxing <luojiaxing@...wei.com>
This patch create debugfs file for global register and add file
operations.
Signed-off-by: Luo Jiaxing <luojiaxing@...wei.com>
Signed-off-by: John Garry <john.garry@...wei.com>
---
drivers/scsi/hisi_sas/hisi_sas.h | 8 ++++
drivers/scsi/hisi_sas/hisi_sas_main.c | 64 +++++++++++++++++++++++++++++++
drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 69 ++++++++++++++++++++++++++++++++++
3 files changed, 141 insertions(+)
diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 3b5fd6d..6a1a5ad 100644
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -221,7 +221,15 @@ 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 {
diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c
index 742f71a..fd85934 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_main.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_main.c
@@ -2544,6 +2544,66 @@ static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba)
}
}
+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,
+ le32_to_cpu(regs_val[i]), name);
+ else
+ seq_printf(s, "0x%08x 0x%08x\n", off,
+ le32_to_cpu(regs_val[i]));
+ }
+}
+
+static int hisi_sas_debugfs_global_show(struct seq_file *s, void *p)
+{
+ struct hisi_hba *hisi_hba = s->private;
+ const struct hisi_sas_hw *hw = hisi_hba->hw;
+ const struct hisi_sas_debugfs_reg *reg_global = hw->debugfs_reg_global;
+
+ hisi_sas_debugfs_print_reg((u32 *)hisi_hba->debugfs_global_reg,
+ 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 void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
{
struct dentry *dump_dentry;
@@ -2554,6 +2614,10 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba)
goto fail;
hisi_hba->debugfs_dump_dentry = dump_dentry;
+
+ if (!debugfs_create_file("global", 0400, dump_dentry, hisi_hba,
+ &hisi_sas_debugfs_global_fops))
+ goto fail;
return;
fail:
debugfs_remove_recursive(hisi_hba->debugfs_dir);
diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
index 4dd48ac..ca3d13b 100644
--- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
+++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c
@@ -2344,7 +2344,76 @@ static ssize_t intr_coal_count_v3_hw_store(struct device *dev,
.read_port_reg = hisi_sas_phy_read32,
};
+static const struct hisi_sas_debugfs_reg_lu debugfs_global_reg_lu[] = {
+ HISI_SAS_DEBUGFS_REG(DLVRY_QUEUE_ENABLE),
+ HISI_SAS_DEBUGFS_REG(PHY_CONTEXT),
+ HISI_SAS_DEBUGFS_REG(PHY_STATE),
+ HISI_SAS_DEBUGFS_REG(PHY_PORT_NUM_MA),
+ HISI_SAS_DEBUGFS_REG(PHY_CONN_RATE),
+ HISI_SAS_DEBUGFS_REG(ITCT_CLR),
+ HISI_SAS_DEBUGFS_REG(IO_SATA_BROKEN_MSG_ADDR_LO),
+ HISI_SAS_DEBUGFS_REG(IO_SATA_BROKEN_MSG_ADDR_HI),
+ HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_LO),
+ HISI_SAS_DEBUGFS_REG(SATA_INITI_D2H_STORE_ADDR_HI),
+ HISI_SAS_DEBUGFS_REG(CFG_MAX_TAG),
+ HISI_SAS_DEBUGFS_REG(HGC_SAS_TX_OPEN_FAIL_RETRY_CTRL),
+ HISI_SAS_DEBUGFS_REG(HGC_SAS_TXFAIL_RETRY_CTRL),
+ HISI_SAS_DEBUGFS_REG(HGC_GET_ITV_TIME),
+ HISI_SAS_DEBUGFS_REG(DEVICE_MSG_WORK_MODE),
+ HISI_SAS_DEBUGFS_REG(OPENA_WT_CONTI_TIME),
+ HISI_SAS_DEBUGFS_REG(I_T_NEXUS_LOSS_TIME),
+ HISI_SAS_DEBUGFS_REG(MAX_CON_TIME_LIMIT_TIME),
+ HISI_SAS_DEBUGFS_REG(BUS_INACTIVE_LIMIT_TIME),
+ HISI_SAS_DEBUGFS_REG(REJECT_TO_OPEN_LIMIT_TIME),
+ HISI_SAS_DEBUGFS_REG(CQ_INT_CONVERGE_EN),
+ HISI_SAS_DEBUGFS_REG(CFG_AGING_TIME),
+ HISI_SAS_DEBUGFS_REG(HGC_DFX_CFG2),
+ HISI_SAS_DEBUGFS_REG(CFG_ABT_SET_QUERY_IPTT),
+ HISI_SAS_DEBUGFS_REG(CFG_ABT_SET_IPTT_DONE),
+ HISI_SAS_DEBUGFS_REG(HGC_IOMB_PROC1_STATUS),
+ HISI_SAS_DEBUGFS_REG(CHNL_INT_STATUS),
+ HISI_SAS_DEBUGFS_REG(HGC_AXI_FIFO_ERR_INFO),
+ HISI_SAS_DEBUGFS_REG(INT_COAL_EN),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_COAL_TIME),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_COAL_CNT),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_COAL_TIME),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_COAL_CNT),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_SRC),
+ HISI_SAS_DEBUGFS_REG(OQ_INT_SRC_MSK),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC1),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC2),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC3),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK1),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK2),
+ HISI_SAS_DEBUGFS_REG(ENT_INT_SRC_MSK3),
+ HISI_SAS_DEBUGFS_REG(CHNL_PHYUPDOWN_INT_MSK),
+ HISI_SAS_DEBUGFS_REG(CHNL_ENT_INT_MSK),
+ HISI_SAS_DEBUGFS_REG(HGC_COM_INT_MSK),
+ HISI_SAS_DEBUGFS_REG(SAS_ECC_INTR),
+ HISI_SAS_DEBUGFS_REG(SAS_ECC_INTR_MSK),
+ HISI_SAS_DEBUGFS_REG(HGC_ERR_STAT_EN),
+ HISI_SAS_DEBUGFS_REG(CQE_SEND_CNT),
+ HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_DEPTH),
+ HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_WR_PTR),
+ HISI_SAS_DEBUGFS_REG(DLVRY_Q_0_RD_PTR),
+ HISI_SAS_DEBUGFS_REG(HYPER_STREAM_ID_EN_CFG),
+ HISI_SAS_DEBUGFS_REG(OQ0_INT_SRC_MSK),
+ HISI_SAS_DEBUGFS_REG(COMPL_Q_0_DEPTH),
+ HISI_SAS_DEBUGFS_REG(COMPL_Q_0_WR_PTR),
+ HISI_SAS_DEBUGFS_REG(COMPL_Q_0_RD_PTR),
+ HISI_SAS_DEBUGFS_REG(AWQOS_AWCACHE_CFG),
+ HISI_SAS_DEBUGFS_REG(ARQOS_ARCACHE_CFG),
+ HISI_SAS_DEBUGFS_REG(HILINK_ERR_DFX),
+ HISI_SAS_DEBUGFS_REG(SAS_GPIO_CFG_0),
+ HISI_SAS_DEBUGFS_REG(SAS_GPIO_CFG_1),
+ HISI_SAS_DEBUGFS_REG(SAS_GPIO_TX_0_1),
+ HISI_SAS_DEBUGFS_REG(SAS_CFG_DRIVE_VLD),
+ {}
+};
+
static const struct hisi_sas_debugfs_reg debugfs_global_reg = {
+ .lu = debugfs_global_reg_lu,
+ .count = 0x800,
.read_global_reg = hisi_sas_read32,
};
--
1.9.1
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