Commit 5215e162 authored by Luo bin's avatar Luo bin Committed by David S. Miller
Browse files

hinic: add support to query function table 



add debugfs node for querying function table, for example:
cat /sys/kernel/debug/hinic/0000:15:00.0/func_table/valid

Signed-off-by: default avatarLuo bin <luobin9@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 626f0603

drivers/net/ethernet/huawei/hinic/hinic_debugfs.c

+91 −1
Original line number Diff line number Diff line
@@ -70,6 +70,63 @@ static u64 hinic_dbg_get_rq_info(struct hinic_dev *nic_dev, struct hinic_rq *rq, 
	return 0;

}



enum func_tbl_info {

	VALID,

	RX_MODE,

	MTU,

	RQ_DEPTH,

	QUEUE_NUM,

};



static char *func_table_fields[] = {"valid", "rx_mode", "mtu", "rq_depth", "cfg_q_num"};



static int hinic_dbg_get_func_table(struct hinic_dev *nic_dev, int idx)

{

	struct tag_sml_funcfg_tbl *funcfg_table_elem;

	struct hinic_cmd_lt_rd *read_data;

	u16 out_size = sizeof(*read_data);

	int err;



	read_data = kzalloc(sizeof(*read_data), GFP_KERNEL);

	if (!read_data)

		return ~0;



	read_data->node = TBL_ID_FUNC_CFG_SM_NODE;

	read_data->inst = TBL_ID_FUNC_CFG_SM_INST;

	read_data->entry_size = HINIC_FUNCTION_CONFIGURE_TABLE_SIZE;

	read_data->lt_index = HINIC_HWIF_FUNC_IDX(nic_dev->hwdev->hwif);

	read_data->len = HINIC_FUNCTION_CONFIGURE_TABLE_SIZE;



	err = hinic_port_msg_cmd(nic_dev->hwdev, HINIC_PORT_CMD_RD_LINE_TBL, read_data,

				 sizeof(*read_data), read_data, &out_size);

	if (err || out_size != sizeof(*read_data) || read_data->status) {

		netif_err(nic_dev, drv, nic_dev->netdev,

			  "Failed to get func table, err: %d, status: 0x%x, out size: 0x%x\n",

			  err, read_data->status, out_size);

		kfree(read_data);

		return ~0;

	}



	funcfg_table_elem = (struct tag_sml_funcfg_tbl *)read_data->data;



	switch (idx) {

	case VALID:

		return funcfg_table_elem->dw0.bs.valid;

	case RX_MODE:

		return funcfg_table_elem->dw0.bs.nic_rx_mode;

	case MTU:

		return funcfg_table_elem->dw1.bs.mtu;

	case RQ_DEPTH:

		return funcfg_table_elem->dw13.bs.cfg_rq_depth;

	case QUEUE_NUM:

		return funcfg_table_elem->dw13.bs.cfg_q_num;

	}



	kfree(read_data);



	return ~0;

}



static ssize_t hinic_dbg_cmd_read(struct file *filp, char __user *buffer, size_t count,

				  loff_t *ppos)

{
@@ -91,6 +148,10 @@ static ssize_t hinic_dbg_cmd_read(struct file *filp, char __user *buffer, size_t 
		out = hinic_dbg_get_rq_info(dbg->dev, dbg->object, *desc);

		break;



	case HINIC_DBG_FUNC_TABLE:

		out = hinic_dbg_get_func_table(dbg->dev, *desc);

		break;



	default:

		netif_warn(dbg->dev, drv, dbg->dev->netdev, "Invalid hinic debug cmd: %d\n",

			   dbg->type);
@@ -136,7 +197,9 @@ static int create_dbg_files(struct hinic_dev *dev, enum hinic_dbg_type type, voi 


static void rem_dbg_files(struct hinic_debug_priv *dbg)

{

	if (dbg->type != HINIC_DBG_FUNC_TABLE)

		debugfs_remove_recursive(dbg->root);



	kfree(dbg);

}
@@ -184,6 +247,21 @@ void hinic_rq_debug_rem(struct hinic_rq *rq) 
		rem_dbg_files(rq->dbg);

}



int hinic_func_table_debug_add(struct hinic_dev *dev)

{

	if (HINIC_IS_VF(dev->hwdev->hwif))

		return 0;



	return create_dbg_files(dev, HINIC_DBG_FUNC_TABLE, dev, dev->func_tbl_dbgfs, &dev->dbg,

				func_table_fields, ARRAY_SIZE(func_table_fields));

}



void hinic_func_table_debug_rem(struct hinic_dev *dev)

{

	if (!HINIC_IS_VF(dev->hwdev->hwif) && dev->dbg)

		rem_dbg_files(dev->dbg);

}



void hinic_sq_dbgfs_init(struct hinic_dev *nic_dev)

{

	nic_dev->sq_dbgfs = debugfs_create_dir("SQs", nic_dev->dbgfs_root);
@@ -204,6 +282,18 @@ void hinic_rq_dbgfs_uninit(struct hinic_dev *nic_dev) 
	debugfs_remove_recursive(nic_dev->rq_dbgfs);

}



void hinic_func_tbl_dbgfs_init(struct hinic_dev *nic_dev)

{

	if (!HINIC_IS_VF(nic_dev->hwdev->hwif))

		nic_dev->func_tbl_dbgfs = debugfs_create_dir("func_table", nic_dev->dbgfs_root);

}



void hinic_func_tbl_dbgfs_uninit(struct hinic_dev *nic_dev)

{

	if (!HINIC_IS_VF(nic_dev->hwdev->hwif))

		debugfs_remove_recursive(nic_dev->func_tbl_dbgfs);

}



void hinic_dbg_init(struct hinic_dev *nic_dev)

{

	nic_dev->dbgfs_root = debugfs_create_dir(pci_name(nic_dev->hwdev->hwif->pdev),

drivers/net/ethernet/huawei/hinic/hinic_debugfs.h

+79 −0
Original line number Diff line number Diff line
@@ -8,6 +8,77 @@ 


#include "hinic_dev.h"



#define    TBL_ID_FUNC_CFG_SM_NODE                      11

#define    TBL_ID_FUNC_CFG_SM_INST                      1



#define HINIC_FUNCTION_CONFIGURE_TABLE_SIZE             64

#define HINIC_FUNCTION_CONFIGURE_TABLE			1



struct hinic_cmd_lt_rd {

	u8	status;

	u8	version;

	u8	rsvd0[6];



	unsigned char node;

	unsigned char inst;

	unsigned char entry_size;

	unsigned char rsvd;

	unsigned int lt_index;

	unsigned int offset;

	unsigned int len;

	unsigned char data[100];

};



struct tag_sml_funcfg_tbl {

	union {

		struct {

			u32 rsvd0            :8;

			u32 nic_rx_mode      :5;

			u32 rsvd1            :18;

			u32 valid            :1;

		} bs;



		u32 value;

	} dw0;



	union {

		struct {

			u32 vlan_id             :12;

			u32 vlan_mode           :3;

			u32 fast_recycled_mode  :1;

			u32 mtu                 :16;

		} bs;



		u32 value;

	} dw1;



	u32 dw2;

	u32 dw3;

	u32 dw4;

	u32 dw5;

	u32 dw6;

	u32 dw7;

	u32 dw8;

	u32 dw9;

	u32 dw10;

	u32 dw11;

	u32 dw12;



	union {

		struct {

			u32 rsvd2               :15;

			u32 cfg_q_num           :9;

			u32 cfg_rq_depth        :6;

			u32 vhd_type            :2;

		} bs;



		u32 value;

	} dw13;



	u32 dw14;

	u32 dw15;

};



int hinic_sq_debug_add(struct hinic_dev *dev, u16 sq_id);



void hinic_sq_debug_rem(struct hinic_sq *sq);
@@ -16,6 +87,10 @@ int hinic_rq_debug_add(struct hinic_dev *dev, u16 rq_id); 


void hinic_rq_debug_rem(struct hinic_rq *rq);



int hinic_func_table_debug_add(struct hinic_dev *dev);



void hinic_func_table_debug_rem(struct hinic_dev *dev);



void hinic_sq_dbgfs_init(struct hinic_dev *nic_dev);



void hinic_sq_dbgfs_uninit(struct hinic_dev *nic_dev);
@@ -24,6 +99,10 @@ void hinic_rq_dbgfs_init(struct hinic_dev *nic_dev); 


void hinic_rq_dbgfs_uninit(struct hinic_dev *nic_dev);



void hinic_func_tbl_dbgfs_init(struct hinic_dev *nic_dev);



void hinic_func_tbl_dbgfs_uninit(struct hinic_dev *nic_dev);



void hinic_dbg_init(struct hinic_dev *nic_dev);



void hinic_dbg_uninit(struct hinic_dev *nic_dev);

drivers/net/ethernet/huawei/hinic/hinic_dev.h

+3 −0
Original line number Diff line number Diff line
@@ -61,6 +61,7 @@ struct hinic_intr_coal_info { 
enum hinic_dbg_type {

	HINIC_DBG_SQ_INFO,

	HINIC_DBG_RQ_INFO,

	HINIC_DBG_FUNC_TABLE,

};



struct hinic_debug_priv {
@@ -114,6 +115,8 @@ struct hinic_dev { 
	struct dentry			*dbgfs_root;

	struct dentry			*sq_dbgfs;

	struct dentry			*rq_dbgfs;

	struct dentry			*func_tbl_dbgfs;

	struct hinic_debug_priv		*dbg;

	struct devlink			*devlink;

	bool				cable_unplugged;

	bool				module_unrecognized;

drivers/net/ethernet/huawei/hinic/hinic_hw_dev.h

+2 −0
Original line number Diff line number Diff line
@@ -96,6 +96,8 @@ enum hinic_port_cmd { 


	HINIC_PORT_CMD_RSS_TEMP_MGR	= 49,



	HINIC_PORT_CMD_RD_LINE_TBL	= 57,



	HINIC_PORT_CMD_RSS_CFG		= 66,



	HINIC_PORT_CMD_FWCTXT_INIT      = 69,

drivers/net/ethernet/huawei/hinic/hinic_main.c

+15 −0
Original line number Diff line number Diff line
@@ -1302,6 +1302,14 @@ static int nic_dev_init(struct pci_dev *pdev) 


	hinic_dbg_init(nic_dev);



	hinic_func_tbl_dbgfs_init(nic_dev);



	err = hinic_func_table_debug_add(nic_dev);

	if (err) {

		dev_err(&pdev->dev, "Failed to add func_table debug\n");

		goto err_add_func_table_dbg;

	}



	err = register_netdev(netdev);

	if (err) {

		dev_err(&pdev->dev, "Failed to register netdev\n");
@@ -1311,6 +1319,9 @@ static int nic_dev_init(struct pci_dev *pdev) 
	return 0;



err_reg_netdev:

	hinic_func_table_debug_rem(nic_dev);

err_add_func_table_dbg:

	hinic_func_tbl_dbgfs_uninit(nic_dev);

	hinic_dbg_uninit(nic_dev);

	hinic_free_intr_coalesce(nic_dev);

err_init_intr:
@@ -1434,6 +1445,10 @@ static void hinic_remove(struct pci_dev *pdev) 


	unregister_netdev(netdev);



	hinic_func_table_debug_rem(nic_dev);



	hinic_func_tbl_dbgfs_uninit(nic_dev);



	hinic_dbg_uninit(nic_dev);



	hinic_free_intr_coalesce(nic_dev);

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