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 14 static struct dentry *ionic_dir; 15 16 void ionic_debugfs_create(void) 17 { 18 ionic_dir = debugfs_create_dir(IONIC_DRV_NAME, NULL); 19 } 20 21 void ionic_debugfs_destroy(void) 22 { 23 debugfs_remove_recursive(ionic_dir); 24 } 25 26 void ionic_debugfs_add_dev(struct ionic *ionic) 27 { 28 ionic->dentry = debugfs_create_dir(ionic_bus_info(ionic), ionic_dir); 29 } 30 31 void ionic_debugfs_del_dev(struct ionic *ionic) 32 { 33 debugfs_remove_recursive(ionic->dentry); 34 ionic->dentry = NULL; 35 } 36 37 static 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 } 55 DEFINE_SHOW_ATTRIBUTE(identity); 56 57 void ionic_debugfs_add_ident(struct ionic *ionic) 58 { 59 debugfs_create_file("identity", 0400, ionic->dentry, 60 ionic, &identity_fops); 61 } 62 63 void 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 75 static 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->index); 80 81 return 0; 82 } 83 DEFINE_SHOW_ATTRIBUTE(q_tail); 84 85 static 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->index); 90 91 return 0; 92 } 93 DEFINE_SHOW_ATTRIBUTE(q_head); 94 95 static 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->index); 100 101 return 0; 102 } 103 DEFINE_SHOW_ATTRIBUTE(cq_tail); 104 105 static 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 }; 112 113 void ionic_debugfs_add_qcq(struct ionic_lif *lif, struct ionic_qcq *qcq) 114 { 115 struct dentry *q_dentry, *cq_dentry, *intr_dentry, *stats_dentry; 116 struct ionic_dev *idev = &lif->ionic->idev; 117 struct debugfs_regset32 *intr_ctrl_regset; 118 struct ionic_intr_info *intr = &qcq->intr; 119 struct debugfs_blob_wrapper *desc_blob; 120 struct device *dev = lif->ionic->dev; 121 struct ionic_queue *q = &qcq->q; 122 struct ionic_cq *cq = &qcq->cq; 123 124 qcq->dentry = debugfs_create_dir(q->name, lif->dentry); 125 126 debugfs_create_x32("total_size", 0400, qcq->dentry, &qcq->total_size); 127 debugfs_create_x64("base_pa", 0400, qcq->dentry, &qcq->base_pa); 128 129 q_dentry = debugfs_create_dir("q", qcq->dentry); 130 131 debugfs_create_u32("index", 0400, q_dentry, &q->index); 132 debugfs_create_x64("base_pa", 0400, q_dentry, &q->base_pa); 133 if (qcq->flags & IONIC_QCQ_F_SG) { 134 debugfs_create_x64("sg_base_pa", 0400, q_dentry, 135 &q->sg_base_pa); 136 debugfs_create_u32("sg_desc_size", 0400, q_dentry, 137 &q->sg_desc_size); 138 } 139 debugfs_create_u32("num_descs", 0400, q_dentry, &q->num_descs); 140 debugfs_create_u32("desc_size", 0400, q_dentry, &q->desc_size); 141 debugfs_create_u32("pid", 0400, q_dentry, &q->pid); 142 debugfs_create_u32("qid", 0400, q_dentry, &q->hw_index); 143 debugfs_create_u32("qtype", 0400, q_dentry, &q->hw_type); 144 debugfs_create_u64("drop", 0400, q_dentry, &q->drop); 145 debugfs_create_u64("stop", 0400, q_dentry, &q->stop); 146 debugfs_create_u64("wake", 0400, q_dentry, &q->wake); 147 148 debugfs_create_file("tail", 0400, q_dentry, q, &q_tail_fops); 149 debugfs_create_file("head", 0400, q_dentry, q, &q_head_fops); 150 151 desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL); 152 if (!desc_blob) 153 return; 154 desc_blob->data = q->base; 155 desc_blob->size = (unsigned long)q->num_descs * q->desc_size; 156 debugfs_create_blob("desc_blob", 0400, q_dentry, desc_blob); 157 158 if (qcq->flags & IONIC_QCQ_F_SG) { 159 desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL); 160 if (!desc_blob) 161 return; 162 desc_blob->data = q->sg_base; 163 desc_blob->size = (unsigned long)q->num_descs * q->sg_desc_size; 164 debugfs_create_blob("sg_desc_blob", 0400, q_dentry, 165 desc_blob); 166 } 167 168 cq_dentry = debugfs_create_dir("cq", qcq->dentry); 169 170 debugfs_create_x64("base_pa", 0400, cq_dentry, &cq->base_pa); 171 debugfs_create_u32("num_descs", 0400, cq_dentry, &cq->num_descs); 172 debugfs_create_u32("desc_size", 0400, cq_dentry, &cq->desc_size); 173 debugfs_create_bool("done_color", 0400, cq_dentry, &cq->done_color); 174 175 debugfs_create_file("tail", 0400, cq_dentry, cq, &cq_tail_fops); 176 177 desc_blob = devm_kzalloc(dev, sizeof(*desc_blob), GFP_KERNEL); 178 if (!desc_blob) 179 return; 180 desc_blob->data = cq->base; 181 desc_blob->size = (unsigned long)cq->num_descs * cq->desc_size; 182 debugfs_create_blob("desc_blob", 0400, cq_dentry, desc_blob); 183 184 if (qcq->flags & IONIC_QCQ_F_INTR) { 185 intr_dentry = debugfs_create_dir("intr", qcq->dentry); 186 187 debugfs_create_u32("index", 0400, intr_dentry, 188 &intr->index); 189 debugfs_create_u32("vector", 0400, intr_dentry, 190 &intr->vector); 191 192 intr_ctrl_regset = devm_kzalloc(dev, sizeof(*intr_ctrl_regset), 193 GFP_KERNEL); 194 if (!intr_ctrl_regset) 195 return; 196 intr_ctrl_regset->regs = intr_ctrl_regs; 197 intr_ctrl_regset->nregs = ARRAY_SIZE(intr_ctrl_regs); 198 intr_ctrl_regset->base = &idev->intr_ctrl[intr->index]; 199 200 debugfs_create_regset32("intr_ctrl", 0400, intr_dentry, 201 intr_ctrl_regset); 202 } 203 204 if (qcq->flags & IONIC_QCQ_F_NOTIFYQ) { 205 stats_dentry = debugfs_create_dir("notifyblock", qcq->dentry); 206 207 debugfs_create_u64("eid", 0400, stats_dentry, 208 (u64 *)&lif->info->status.eid); 209 debugfs_create_u16("link_status", 0400, stats_dentry, 210 (u16 *)&lif->info->status.link_status); 211 debugfs_create_u32("link_speed", 0400, stats_dentry, 212 (u32 *)&lif->info->status.link_speed); 213 debugfs_create_u16("link_down_count", 0400, stats_dentry, 214 (u16 *)&lif->info->status.link_down_count); 215 } 216 } 217 218 static int netdev_show(struct seq_file *seq, void *v) 219 { 220 struct net_device *netdev = seq->private; 221 222 seq_printf(seq, "%s\n", netdev->name); 223 224 return 0; 225 } 226 DEFINE_SHOW_ATTRIBUTE(netdev); 227 228 void ionic_debugfs_add_lif(struct ionic_lif *lif) 229 { 230 struct dentry *lif_dentry; 231 232 lif_dentry = debugfs_create_dir(lif->name, lif->ionic->dentry); 233 if (IS_ERR_OR_NULL(lif_dentry)) 234 return; 235 lif->dentry = lif_dentry; 236 237 debugfs_create_file("netdev", 0400, lif->dentry, 238 lif->netdev, &netdev_fops); 239 } 240 241 void ionic_debugfs_del_lif(struct ionic_lif *lif) 242 { 243 debugfs_remove_recursive(lif->dentry); 244 lif->dentry = NULL; 245 } 246 247 void ionic_debugfs_del_qcq(struct ionic_qcq *qcq) 248 { 249 debugfs_remove_recursive(qcq->dentry); 250 qcq->dentry = NULL; 251 } 252 253 #endif 254