1// SPDX-License-Identifier: GPL-2.0 2/* Copyright(c) 2017 - 2019 Pensando Systems, Inc */ 3 4#include <linux/pci.h> 5#include <linux/netdevice.h> 6 7#include "ionic.h" 8#include "ionic_bus.h" 9#include "ionic_lif.h" 10#include "ionic_debugfs.h" 11 12#ifdef CONFIG_DEBUG_FS 13 14static struct dentry *ionic_dir; 15 16void ionic_debugfs_create(void) 17{ 18 ionic_dir = debugfs_create_dir(IONIC_DRV_NAME, NULL); 19} 20 21void ionic_debugfs_destroy(void) 22{ 23 debugfs_remove_recursive(ionic_dir); 24} 25 26void ionic_debugfs_add_dev(struct ionic *ionic) 27{ 28 ionic->dentry = debugfs_create_dir(ionic_bus_info(ionic), ionic_dir); 29} 30 31void ionic_debugfs_del_dev(struct ionic *ionic) 32{ 33 debugfs_remove_recursive(ionic->dentry); 34 ionic->dentry = NULL; 35} 36 37static int identity_show(struct seq_file *seq, void *v) 38{ 39 struct ionic *ionic = seq->private; 40 struct ionic_identity *ident; 41 42 ident = &ionic->ident; 43 44 seq_printf(seq, "nlifs: %d\n", ident->dev.nlifs); 45 seq_printf(seq, "nintrs: %d\n", ident->dev.nintrs); 46 seq_printf(seq, "ndbpgs_per_lif: %d\n", ident->dev.ndbpgs_per_lif); 47 seq_printf(seq, "intr_coal_mult: %d\n", ident->dev.intr_coal_mult); 48 seq_printf(seq, "intr_coal_div: %d\n", ident->dev.intr_coal_div); 49 50 seq_printf(seq, "max_ucast_filters: %d\n", ident->lif.eth.max_ucast_filters); 51 seq_printf(seq, "max_mcast_filters: %d\n", ident->lif.eth.max_mcast_filters); 52 53 return 0; 54} 55DEFINE_SHOW_ATTRIBUTE(identity); 56 57void ionic_debugfs_add_ident(struct ionic *ionic) 58{ 59 debugfs_create_file("identity", 0400, ionic->dentry, 60 ionic, &identity_fops); 61} 62 63void ionic_debugfs_add_sizes(struct ionic *ionic) 64{ 65 debugfs_create_u32("nlifs", 0400, ionic->dentry, 66 (u32 *)&ionic->ident.dev.nlifs); 67 debugfs_create_u32("nintrs", 0400, ionic->dentry, &ionic->nintrs); 68 69 debugfs_create_u32("ntxqs_per_lif", 0400, ionic->dentry, 70 (u32 *)&ionic->ident.lif.eth.config.queue_count[IONIC_QTYPE_TXQ]); 71 debugfs_create_u32("nrxqs_per_lif", 0400, ionic->dentry, 72 (u32 *)&ionic->ident.lif.eth.config.queue_count[IONIC_QTYPE_RXQ]); 73} 74 75static int q_tail_show(struct seq_file *seq, void *v) 76{ 77 struct ionic_queue *q = seq->private; 78 79 seq_printf(seq, "%d\n", q->tail_idx); 80 81 return 0; 82} 83DEFINE_SHOW_ATTRIBUTE(q_tail); 84 85static int q_head_show(struct seq_file *seq, void *v) 86{ 87 struct ionic_queue *q = seq->private; 88 89 seq_printf(seq, "%d\n", q->head_idx); 90 91 return 0; 92} 93DEFINE_SHOW_ATTRIBUTE(q_head); 94 95static int cq_tail_show(struct seq_file *seq, void *v) 96{ 97 struct ionic_cq *cq = seq->private; 98 99 seq_printf(seq, "%d\n", cq->tail_idx); 100 101 return 0; 102} 103DEFINE_SHOW_ATTRIBUTE(cq_tail); 104 105static const struct debugfs_reg32 intr_ctrl_regs[] = { 106 { .name = "coal_init", .offset = 0, }, 107 { .name = "mask", .offset = 4, }, 108 { .name = "credits", .offset = 8, }, 109 { .name = "mask_on_assert", .offset = 12, }, 110 { .name = "coal_timer", .offset = 16, }, 111}; 112 113void ionic_debugfs_add_qcq(struct ionic_lif *lif, struct ionic_qcq *qcq) 114{ 115 struct dentry *qcq_dentry, *q_dentry, *cq_dentry; 116 struct dentry *intr_dentry, *stats_dentry; 117 struct ionic_dev *idev = &lif->ionic->idev; 118 struct debugfs_regset32 *intr_ctrl_regset; 119 struct ionic_intr_info *intr = &qcq->intr; 120 struct debugfs_blob_wrapper *desc_blob; 121 struct device *dev = lif->ionic->dev; 122 struct ionic_queue *q = &qcq->q; 123 struct ionic_cq *cq = &qcq->cq; 124 125 qcq_dentry = debugfs_create_dir(q->name, lif->dentry); 126 if (IS_ERR_OR_NULL(qcq_dentry)) 127 return; 128 qcq->dentry = qcq_dentry; 129 130 debugfs_create_x64("q_base_pa", 0400, qcq_dentry, &qcq->q_base_pa); 131 debugfs_create_x32("q_size", 0400, qcq_dentry, &qcq->q_size); 132 debugfs_create_x64("cq_base_pa", 0400, qcq_dentry, &qcq->cq_base_pa); 133 debugfs_create_x32("cq_size", 0400, qcq_dentry, &qcq->cq_size); 134 debugfs_create_x64("sg_base_pa", 0400, qcq_dentry, &qcq->sg_base_pa); 135 debugfs_create_x32("sg_size", 0400, qcq_dentry, &qcq->sg_size); 136 137 q_dentry = debugfs_create_dir("q", qcq->dentry); 138 139 debugfs_create_u32("index", 0400, q_dentry, &q->index); 140 debugfs_create_u32("num_descs", 0400, q_dentry, &q->num_descs); 141 debugfs_create_u32("desc_size", 0400, q_dentry, &q->desc_size); 142 debugfs_create_u32("pid", 0400, q_dentry, &q->pid); 143 debugfs_create_u32("qid", 0400, q_dentry, &q->hw_index); 144 debugfs_create_u32("qtype", 0400, q_dentry, &q->hw_type); 145 debugfs_create_u64("drop", 0400, q_dentry, &q->drop); 146 debugfs_create_u64("stop", 0400, q_dentry, &q->stop); 147 debugfs_create_u64("wake", 0400, q_dentry, &q->wake); 148 149 debugfs_create_file("tail", 0400, q_dentry, q, &q_tail_fops); 150 debugfs_create_file("head", 0400, q_dentry, q, &q_head_fops); 151 152 desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL); 153 if (!desc_blob) 154 return; 155 desc_blob->data = q->base; 156 desc_blob->size = (unsigned long)q->num_descs * q->desc_size; 157 debugfs_create_blob("desc_blob", 0400, q_dentry, desc_blob); 158 159 if (qcq->flags & IONIC_QCQ_F_SG) { 160 desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL); 161 if (!desc_blob) 162 return; 163 desc_blob->data = q->sg_base; 164 desc_blob->size = (unsigned long)q->num_descs * q->sg_desc_size; 165 debugfs_create_blob("sg_desc_blob", 0400, q_dentry, 166 desc_blob); 167 } 168 169 cq_dentry = debugfs_create_dir("cq", qcq->dentry); 170 171 debugfs_create_x64("base_pa", 0400, cq_dentry, &cq->base_pa); 172 debugfs_create_u32("num_descs", 0400, cq_dentry, &cq->num_descs); 173 debugfs_create_u32("desc_size", 0400, cq_dentry, &cq->desc_size); 174 debugfs_create_bool("done_color", 0400, cq_dentry, &cq->done_color); 175 176 debugfs_create_file("tail", 0400, cq_dentry, cq, &cq_tail_fops); 177 178 desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL); 179 if (!desc_blob) 180 return; 181 desc_blob->data = cq->base; 182 desc_blob->size = (unsigned long)cq->num_descs * cq->desc_size; 183 debugfs_create_blob("desc_blob", 0400, cq_dentry, desc_blob); 184 185 if (qcq->flags & IONIC_QCQ_F_INTR) { 186 intr_dentry = debugfs_create_dir("intr", qcq->dentry); 187 188 debugfs_create_u32("index", 0400, intr_dentry, 189 &intr->index); 190 debugfs_create_u32("vector", 0400, intr_dentry, 191 &intr->vector); 192 debugfs_create_u32("dim_coal_hw", 0400, intr_dentry, 193 &intr->dim_coal_hw); 194 195 intr_ctrl_regset = devm_kzalloc(dev, sizeof(*intr_ctrl_regset), 196 GFP_KERNEL); 197 if (!intr_ctrl_regset) 198 return; 199 intr_ctrl_regset->regs = intr_ctrl_regs; 200 intr_ctrl_regset->nregs = ARRAY_SIZE(intr_ctrl_regs); 201 intr_ctrl_regset->base = &idev->intr_ctrl[intr->index]; 202 203 debugfs_create_regset32("intr_ctrl", 0400, intr_dentry, 204 intr_ctrl_regset); 205 } 206 207 if (qcq->flags & IONIC_QCQ_F_NOTIFYQ) { 208 stats_dentry = debugfs_create_dir("notifyblock", qcq->dentry); 209 210 debugfs_create_u64("eid", 0400, stats_dentry, 211 (u64 *)&lif->info->status.eid); 212 debugfs_create_u16("link_status", 0400, stats_dentry, 213 (u16 *)&lif->info->status.link_status); 214 debugfs_create_u32("link_speed", 0400, stats_dentry, 215 (u32 *)&lif->info->status.link_speed); 216 debugfs_create_u16("link_down_count", 0400, stats_dentry, 217 (u16 *)&lif->info->status.link_down_count); 218 } 219} 220 221static int netdev_show(struct seq_file *seq, void *v) 222{ 223 struct net_device *netdev = seq->private; 224 225 seq_printf(seq, "%s\n", netdev->name); 226 227 return 0; 228} 229DEFINE_SHOW_ATTRIBUTE(netdev); 230 231void ionic_debugfs_add_lif(struct ionic_lif *lif) 232{ 233 struct dentry *lif_dentry; 234 235 lif_dentry = debugfs_create_dir(lif->name, lif->ionic->dentry); 236 if (IS_ERR_OR_NULL(lif_dentry)) 237 return; 238 lif->dentry = lif_dentry; 239 240 debugfs_create_file("netdev", 0400, lif->dentry, 241 lif->netdev, &netdev_fops); 242} 243 244void ionic_debugfs_del_lif(struct ionic_lif *lif) 245{ 246 debugfs_remove_recursive(lif->dentry); 247 lif->dentry = NULL; 248} 249 250void ionic_debugfs_del_qcq(struct ionic_qcq *qcq) 251{ 252 debugfs_remove_recursive(qcq->dentry); 253 qcq->dentry = NULL; 254} 255 256#endif 257