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path: root/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
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Diffstat (limited to 'drivers/net/ethernet/pensando/ionic/ionic_debugfs.c')
-rw-r--r--drivers/net/ethernet/pensando/ionic/ionic_debugfs.c248
1 files changed, 248 insertions, 0 deletions
diff --git a/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c b/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
new file mode 100644
index 000000000000..7afc4a365b75
--- /dev/null
+++ b/drivers/net/ethernet/pensando/ionic/ionic_debugfs.c
@@ -0,0 +1,248 @@
+// 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) ? 0 : -EOPNOTSUPP;
+}
+
+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->index);
+
+ 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->index);
+
+ 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->index);
+
+ 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 *q_dentry, *cq_dentry, *intr_dentry, *stats_dentry;
+ struct ionic_dev *idev = &lif->ionic->idev;
+ 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);
+
+ debugfs_create_x32("total_size", 0400, qcq->dentry, &qcq->total_size);
+ debugfs_create_x64("base_pa", 0400, qcq->dentry, &qcq->base_pa);
+
+ q_dentry = debugfs_create_dir("q", qcq->dentry);
+
+ debugfs_create_u32("index", 0400, q_dentry, &q->index);
+ debugfs_create_x64("base_pa", 0400, q_dentry, &q->base_pa);
+ if (qcq->flags & IONIC_QCQ_F_SG) {
+ debugfs_create_x64("sg_base_pa", 0400, q_dentry,
+ &q->sg_base_pa);
+ debugfs_create_u32("sg_desc_size", 0400, q_dentry,
+ &q->sg_desc_size);
+ }
+ 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_u64("stop", 0400, q_dentry, &q->stop);
+ debugfs_create_u64("wake", 0400, q_dentry, &q->wake);
+
+ 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_u8("done_color", 0400, cq_dentry,
+ (u8 *)&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);
+
+ 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);
+
+ return 0;
+}
+DEFINE_SHOW_ATTRIBUTE(netdev);
+
+void ionic_debugfs_add_lif(struct ionic_lif *lif)
+{
+ lif->dentry = debugfs_create_dir(lif->name, lif->ionic->dentry);
+ debugfs_create_file("netdev", 0400, lif->dentry,
+ lif->netdev, &netdev_fops);
+}
+
+void ionic_debugfs_del_lif(struct ionic_lif *lif)
+{
+ 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