Commit 626f0603 authored by Luo bin's avatar Luo bin Committed by David S. Miller
Browse files

hinic: add support to query rq info 



add debugfs node for querying rq info, for example:
cat /sys/kernel/debug/hinic/0000:15:00.0/RQs/0x0/rq_hw_pi

Signed-off-by: default avatarLuo bin <luobin9@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 253ac3a9

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

+66 −0
Original line number Diff line number Diff line
@@ -40,6 +40,36 @@ static u64 hinic_dbg_get_sq_info(struct hinic_dev *nic_dev, struct hinic_sq *sq, 
	return 0;

}



enum rq_dbg_info {

	GLB_RQ_ID,

	RQ_HW_PI,

	RQ_SW_CI,

	RQ_SW_PI,

	RQ_MSIX_ENTRY,

};



static char *rq_fields[] = {"glb_rq_id", "rq_hw_pi", "rq_sw_ci", "rq_sw_pi", "rq_msix_entry"};



static u64 hinic_dbg_get_rq_info(struct hinic_dev *nic_dev, struct hinic_rq *rq, int idx)

{

	struct hinic_wq *wq = rq->wq;



	switch (idx) {

	case GLB_RQ_ID:

		return nic_dev->hwdev->func_to_io.global_qpn + rq->qid;

	case RQ_HW_PI:

		return be16_to_cpu(*(__be16 *)(rq->pi_virt_addr)) & wq->mask;

	case RQ_SW_CI:

		return atomic_read(&wq->cons_idx) & wq->mask;

	case RQ_SW_PI:

		return atomic_read(&wq->prod_idx) & wq->mask;

	case RQ_MSIX_ENTRY:

		return rq->msix_entry;

	}



	return 0;

}



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

				  loff_t *ppos)

{
@@ -57,6 +87,10 @@ static ssize_t hinic_dbg_cmd_read(struct file *filp, char __user *buffer, size_t 
		out = hinic_dbg_get_sq_info(dbg->dev, dbg->object, *desc);

		break;



	case HINIC_DBG_RQ_INFO:

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

		break;



	default:

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

			   dbg->type);
@@ -128,6 +162,28 @@ void hinic_sq_debug_rem(struct hinic_sq *sq) 
		rem_dbg_files(sq->dbg);

}



int hinic_rq_debug_add(struct hinic_dev *dev, u16 rq_id)

{

	struct hinic_rq *rq;

	struct dentry *root;

	char sub_dir[16];



	rq = dev->rxqs[rq_id].rq;



	sprintf(sub_dir, "0x%x", rq_id);



	root = debugfs_create_dir(sub_dir, dev->rq_dbgfs);



	return create_dbg_files(dev, HINIC_DBG_RQ_INFO, rq, root, &rq->dbg, rq_fields,

				ARRAY_SIZE(rq_fields));

}



void hinic_rq_debug_rem(struct hinic_rq *rq)

{

	if (rq->dbg)

		rem_dbg_files(rq->dbg);

}



void hinic_sq_dbgfs_init(struct hinic_dev *nic_dev)

{

	nic_dev->sq_dbgfs = debugfs_create_dir("SQs", nic_dev->dbgfs_root);
@@ -138,6 +194,16 @@ void hinic_sq_dbgfs_uninit(struct hinic_dev *nic_dev) 
	debugfs_remove_recursive(nic_dev->sq_dbgfs);

}



void hinic_rq_dbgfs_init(struct hinic_dev *nic_dev)

{

	nic_dev->rq_dbgfs = debugfs_create_dir("RQs", nic_dev->dbgfs_root);

}



void hinic_rq_dbgfs_uninit(struct hinic_dev *nic_dev)

{

	debugfs_remove_recursive(nic_dev->rq_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

+8 −0
Original line number Diff line number Diff line
@@ -12,10 +12,18 @@ int hinic_sq_debug_add(struct hinic_dev *dev, u16 sq_id); 


void hinic_sq_debug_rem(struct hinic_sq *sq);



int hinic_rq_debug_add(struct hinic_dev *dev, u16 rq_id);



void hinic_rq_debug_rem(struct hinic_rq *rq);



void hinic_sq_dbgfs_init(struct hinic_dev *nic_dev);



void hinic_sq_dbgfs_uninit(struct hinic_dev *nic_dev);



void hinic_rq_dbgfs_init(struct hinic_dev *nic_dev);



void hinic_rq_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

+2 −0
Original line number Diff line number Diff line
@@ -60,6 +60,7 @@ struct hinic_intr_coal_info { 


enum hinic_dbg_type {

	HINIC_DBG_SQ_INFO,

	HINIC_DBG_RQ_INFO,

};



struct hinic_debug_priv {
@@ -112,6 +113,7 @@ struct hinic_dev { 


	struct dentry			*dbgfs_root;

	struct dentry			*sq_dbgfs;

	struct dentry			*rq_dbgfs;

	struct devlink			*devlink;

	bool				cable_unplugged;

	bool				module_unrecognized;

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

+1 −0
Original line number Diff line number Diff line
@@ -315,6 +315,7 @@ static int init_qp(struct hinic_func_to_io *func_to_io, 
		goto err_sq_init;

	}



	qp->rq.qid = q_id;

	err = hinic_init_rq(&qp->rq, hwif, &func_to_io->rq_wq[q_id],

			    rq_msix_entry);

	if (err) {

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

+3 −0
Original line number Diff line number Diff line
@@ -100,6 +100,8 @@ struct hinic_rq { 


	struct hinic_wq         *wq;



	u16			qid;



	struct cpumask		affinity_mask;

	u32                     irq;

	u16                     msix_entry;
@@ -113,6 +115,7 @@ struct hinic_rq { 


	u16                     *pi_virt_addr;

	dma_addr_t              pi_dma_addr;

	struct hinic_debug_priv	*dbg;

};



struct hinic_qp {

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