// SPDX-License-Identifier: GPL-2.0/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */ #include <linux/pci.h>#include <linux/netdevice.h> #include "ionic.h"#include "ionic_bus.h"#include "ionic_lif.h"#include "ionic_debugfs.h" #ifdef CONFIG_DEBUG_FS static struct dentry *ionic_dir; void ionic_debugfs_create(void){	ionic_dir = debugfs_create_dir(IONIC_DRV_NAME, NULL);} void ionic_debugfs_destroy(void){	debugfs_remove_recursive(ionic_dir);} void ionic_debugfs_add_dev(struct ionic *ionic){	ionic->dentry = debugfs_create_dir(ionic_bus_info(ionic), ionic_dir);} void ionic_debugfs_del_dev(struct ionic *ionic){	debugfs_remove_recursive(ionic->dentry);	ionic->dentry = NULL;} static int identity_show(struct seq_file *seq, void *v){	struct ionic *ionic = seq->private;	struct ionic_identity *ident; 	ident = &ionic->ident; 	seq_printf(seq, "nlifs:            %d\n", ident->dev.nlifs);	seq_printf(seq, "nintrs:           %d\n", ident->dev.nintrs);	seq_printf(seq, "ndbpgs_per_lif:   %d\n", ident->dev.ndbpgs_per_lif);	seq_printf(seq, "intr_coal_mult:   %d\n", ident->dev.intr_coal_mult);	seq_printf(seq, "intr_coal_div:    %d\n", ident->dev.intr_coal_div); 	seq_printf(seq, "max_ucast_filters:  %d\n", ident->lif.eth.max_ucast_filters);	seq_printf(seq, "max_mcast_filters:  %d\n", ident->lif.eth.max_mcast_filters); 	return 0;}DEFINE_SHOW_ATTRIBUTE(identity); void ionic_debugfs_add_ident(struct ionic *ionic){	debugfs_create_file("identity", 0400, ionic->dentry,			    ionic, &identity_fops);} void ionic_debugfs_add_sizes(struct ionic *ionic){	debugfs_create_u32("nlifs", 0400, ionic->dentry,			   (u32 *)&ionic->ident.dev.nlifs);	debugfs_create_u32("nintrs", 0400, ionic->dentry, &ionic->nintrs); 	debugfs_create_u32("ntxqs_per_lif", 0400, ionic->dentry,			   (u32 *)&ionic->ident.lif.eth.config.queue_count[IONIC_QTYPE_TXQ]);	debugfs_create_u32("nrxqs_per_lif", 0400, ionic->dentry,			   (u32 *)&ionic->ident.lif.eth.config.queue_count[IONIC_QTYPE_RXQ]);} static int q_tail_show(struct seq_file *seq, void *v){	struct ionic_queue *q = seq->private; 	seq_printf(seq, "%d\n", q->tail_idx); 	return 0;}DEFINE_SHOW_ATTRIBUTE(q_tail); static int q_head_show(struct seq_file *seq, void *v){	struct ionic_queue *q = seq->private; 	seq_printf(seq, "%d\n", q->head_idx); 	return 0;}DEFINE_SHOW_ATTRIBUTE(q_head); static int cq_tail_show(struct seq_file *seq, void *v){	struct ionic_cq *cq = seq->private; 	seq_printf(seq, "%d\n", cq->tail_idx); 	return 0;}DEFINE_SHOW_ATTRIBUTE(cq_tail); static const struct debugfs_reg32 intr_ctrl_regs[] = {	{ .name = "coal_init", .offset = 0, },	{ .name = "mask", .offset = 4, },	{ .name = "credits", .offset = 8, },	{ .name = "mask_on_assert", .offset = 12, },	{ .name = "coal_timer", .offset = 16, },}; void ionic_debugfs_add_qcq(struct ionic_lif *lif, struct ionic_qcq *qcq){	struct dentry *qcq_dentry, *q_dentry, *cq_dentry;	struct ionic_dev *idev = &lif->ionic->idev;	struct dentry *intr_dentry, *stats_dentry;	struct debugfs_regset32 *intr_ctrl_regset;	struct ionic_intr_info *intr = &qcq->intr;	struct debugfs_blob_wrapper *desc_blob;	struct device *dev = lif->ionic->dev;	struct ionic_queue *q = &qcq->q;	struct ionic_cq *cq = &qcq->cq; 	qcq_dentry = debugfs_create_dir(q->name, lif->dentry);	if (IS_ERR(qcq_dentry))		return;	qcq->dentry = qcq_dentry; 	debugfs_create_x64("q_base_pa", 0400, qcq_dentry, &qcq->q_base_pa);	debugfs_create_x32("q_size", 0400, qcq_dentry, &qcq->q_size);	debugfs_create_x64("cq_base_pa", 0400, qcq_dentry, &qcq->cq_base_pa);	debugfs_create_x32("cq_size", 0400, qcq_dentry, &qcq->cq_size);	debugfs_create_x64("sg_base_pa", 0400, qcq_dentry, &qcq->sg_base_pa);	debugfs_create_x32("sg_size", 0400, qcq_dentry, &qcq->sg_size); 	q_dentry = debugfs_create_dir("q", qcq->dentry); 	debugfs_create_u32("index", 0400, q_dentry, &q->index);	debugfs_create_u32("num_descs", 0400, q_dentry, &q->num_descs);	debugfs_create_u32("desc_size", 0400, q_dentry, &q->desc_size);	debugfs_create_u32("pid", 0400, q_dentry, &q->pid);	debugfs_create_u32("qid", 0400, q_dentry, &q->hw_index);	debugfs_create_u32("qtype", 0400, q_dentry, &q->hw_type);	debugfs_create_u64("drop", 0400, q_dentry, &q->drop); 	debugfs_create_file("tail", 0400, q_dentry, q, &q_tail_fops);	debugfs_create_file("head", 0400, q_dentry, q, &q_head_fops); 	desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL);	if (!desc_blob)		return;	desc_blob->data = q->base;	desc_blob->size = (unsigned long)q->num_descs * q->desc_size;	debugfs_create_blob("desc_blob", 0400, q_dentry, desc_blob); 	if (qcq->flags & IONIC_QCQ_F_SG) {		desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL);		if (!desc_blob)			return;		desc_blob->data = q->sg_base;		desc_blob->size = (unsigned long)q->num_descs * q->sg_desc_size;		debugfs_create_blob("sg_desc_blob", 0400, q_dentry,				    desc_blob);	} 	cq_dentry = debugfs_create_dir("cq", qcq->dentry); 	debugfs_create_x64("base_pa", 0400, cq_dentry, &cq->base_pa);	debugfs_create_u32("num_descs", 0400, cq_dentry, &cq->num_descs);	debugfs_create_u32("desc_size", 0400, cq_dentry, &cq->desc_size);	debugfs_create_bool("done_color", 0400, cq_dentry, &cq->done_color); 	debugfs_create_file("tail", 0400, cq_dentry, cq, &cq_tail_fops); 	desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL);	if (!desc_blob)		return;	desc_blob->data = cq->base;	desc_blob->size = (unsigned long)cq->num_descs * cq->desc_size;	debugfs_create_blob("desc_blob", 0400, cq_dentry, desc_blob); 	if (qcq->flags & IONIC_QCQ_F_INTR) {		intr_dentry = debugfs_create_dir("intr", qcq->dentry); 		debugfs_create_u32("index", 0400, intr_dentry,				   &intr->index);		debugfs_create_u32("vector", 0400, intr_dentry,				   &intr->vector);		debugfs_create_u32("dim_coal_hw", 0400, intr_dentry,				   &intr->dim_coal_hw); 		intr_ctrl_regset = devm_kzalloc(dev, sizeof(*intr_ctrl_regset),						GFP_KERNEL);		if (!intr_ctrl_regset)			return;		intr_ctrl_regset->regs = intr_ctrl_regs;		intr_ctrl_regset->nregs = ARRAY_SIZE(intr_ctrl_regs);		intr_ctrl_regset->base = &idev->intr_ctrl[intr->index]; 		debugfs_create_regset32("intr_ctrl", 0400, intr_dentry,					intr_ctrl_regset);	} 	if (qcq->flags & IONIC_QCQ_F_NOTIFYQ) {		stats_dentry = debugfs_create_dir("notifyblock", qcq->dentry); 		debugfs_create_u64("eid", 0400, stats_dentry,				   (u64 *)&lif->info->status.eid);		debugfs_create_u16("link_status", 0400, stats_dentry,				   (u16 *)&lif->info->status.link_status);		debugfs_create_u32("link_speed", 0400, stats_dentry,				   (u32 *)&lif->info->status.link_speed);		debugfs_create_u16("link_down_count", 0400, stats_dentry,				   (u16 *)&lif->info->status.link_down_count);	}} static int netdev_show(struct seq_file *seq, void *v){	struct net_device *netdev = seq->private; 	seq_printf(seq, "%s\n", netdev_name(netdev)); 	return 0;}DEFINE_SHOW_ATTRIBUTE(netdev); static int lif_filters_show(struct seq_file *seq, void *v){	struct ionic_lif *lif = seq->private;	struct ionic_rx_filter *f;	struct hlist_head *head;	struct hlist_node *tmp;	unsigned int i; 	seq_puts(seq, "id      flow        state type  filter\n");	spin_lock_bh(&lif->rx_filters.lock);	for (i = 0; i < IONIC_RX_FILTER_HLISTS; i++) {		head = &lif->rx_filters.by_id[i];		hlist_for_each_entry_safe(f, tmp, head, by_id) {			switch (le16_to_cpu(f->cmd.match)) {			case IONIC_RX_FILTER_MATCH_VLAN:				seq_printf(seq, "0x%04x  0x%08x  0x%02x  vlan  0x%04x\n",					   f->filter_id, f->flow_id, f->state,					   le16_to_cpu(f->cmd.vlan.vlan));				break;			case IONIC_RX_FILTER_MATCH_MAC:				seq_printf(seq, "0x%04x  0x%08x  0x%02x  mac   %pM\n",					   f->filter_id, f->flow_id, f->state,					   f->cmd.mac.addr);				break;			case IONIC_RX_FILTER_MATCH_MAC_VLAN:				seq_printf(seq, "0x%04x  0x%08x  0x%02x  macvl 0x%04x %pM\n",					   f->filter_id, f->flow_id, f->state,					   le16_to_cpu(f->cmd.vlan.vlan),					   f->cmd.mac.addr);				break;			case IONIC_RX_FILTER_STEER_PKTCLASS:				seq_printf(seq, "0x%04x  0x%08x  0x%02x  rxstr 0x%llx\n",					   f->filter_id, f->flow_id, f->state,					   le64_to_cpu(f->cmd.pkt_class));				break;			}		}	}	spin_unlock_bh(&lif->rx_filters.lock); 	return 0;}DEFINE_SHOW_ATTRIBUTE(lif_filters); void ionic_debugfs_add_lif(struct ionic_lif *lif){	struct dentry *lif_dentry; 	lif_dentry = debugfs_create_dir(lif->name, lif->ionic->dentry);	if (IS_ERR_OR_NULL(lif_dentry))		return;	lif->dentry = lif_dentry; 	debugfs_create_file("netdev", 0400, lif->dentry,			    lif->netdev, &netdev_fops);	debugfs_create_file("filters", 0400, lif->dentry,			    lif, &lif_filters_fops);} void ionic_debugfs_del_lif(struct ionic_lif *lif){	if (!lif->dentry)		return; 	debugfs_remove_recursive(lif->dentry);	lif->dentry = NULL;} void ionic_debugfs_del_qcq(struct ionic_qcq *qcq){	debugfs_remove_recursive(qcq->dentry);	qcq->dentry = NULL;} #endif