13287e96aSThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 261d8658bSDupuis, Chad /* 361d8658bSDupuis, Chad * QLogic FCoE Offload Driver 45d1c8b5bSChad Dupuis * Copyright (c) 2016-2018 QLogic Corporation 561d8658bSDupuis, Chad */ 661d8658bSDupuis, Chad #ifdef CONFIG_DEBUG_FS 761d8658bSDupuis, Chad 861d8658bSDupuis, Chad #include <linux/uaccess.h> 961d8658bSDupuis, Chad #include <linux/debugfs.h> 1061d8658bSDupuis, Chad #include <linux/module.h> 1161d8658bSDupuis, Chad 1261d8658bSDupuis, Chad #include "qedf.h" 1361d8658bSDupuis, Chad #include "qedf_dbg.h" 1461d8658bSDupuis, Chad 1561d8658bSDupuis, Chad static struct dentry *qedf_dbg_root; 1661d8658bSDupuis, Chad 17*ce7e0a84SLee Jones /* 1861d8658bSDupuis, Chad * qedf_dbg_host_init - setup the debugfs file for the pf 19*ce7e0a84SLee Jones */ 2061d8658bSDupuis, Chad void 2161d8658bSDupuis, Chad qedf_dbg_host_init(struct qedf_dbg_ctx *qedf, 22d9ea463aSArnd Bergmann const struct qedf_debugfs_ops *dops, 23d9ea463aSArnd Bergmann const struct file_operations *fops) 2461d8658bSDupuis, Chad { 2561d8658bSDupuis, Chad char host_dirname[32]; 2661d8658bSDupuis, Chad 2761d8658bSDupuis, Chad QEDF_INFO(qedf, QEDF_LOG_DEBUGFS, "Creating debugfs host node\n"); 2861d8658bSDupuis, Chad /* create pf dir */ 2961d8658bSDupuis, Chad sprintf(host_dirname, "host%u", qedf->host_no); 3061d8658bSDupuis, Chad qedf->bdf_dentry = debugfs_create_dir(host_dirname, qedf_dbg_root); 3161d8658bSDupuis, Chad 3261d8658bSDupuis, Chad /* create debugfs files */ 3361d8658bSDupuis, Chad while (dops) { 3461d8658bSDupuis, Chad if (!(dops->name)) 3561d8658bSDupuis, Chad break; 3661d8658bSDupuis, Chad 3726febfb3SGreg Kroah-Hartman debugfs_create_file(dops->name, 0600, qedf->bdf_dentry, qedf, 3861d8658bSDupuis, Chad fops); 3961d8658bSDupuis, Chad dops++; 4061d8658bSDupuis, Chad fops++; 4161d8658bSDupuis, Chad } 4261d8658bSDupuis, Chad } 4361d8658bSDupuis, Chad 44*ce7e0a84SLee Jones /* 4561d8658bSDupuis, Chad * qedf_dbg_host_exit - clear out the pf's debugfs entries 46*ce7e0a84SLee Jones */ 4761d8658bSDupuis, Chad void 48e82e6ff7SSaurav Kashyap qedf_dbg_host_exit(struct qedf_dbg_ctx *qedf_dbg) 4961d8658bSDupuis, Chad { 50e82e6ff7SSaurav Kashyap QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Destroying debugfs host " 5161d8658bSDupuis, Chad "entry\n"); 5261d8658bSDupuis, Chad /* remove debugfs entries of this PF */ 53e82e6ff7SSaurav Kashyap debugfs_remove_recursive(qedf_dbg->bdf_dentry); 54e82e6ff7SSaurav Kashyap qedf_dbg->bdf_dentry = NULL; 5561d8658bSDupuis, Chad } 5661d8658bSDupuis, Chad 57*ce7e0a84SLee Jones /* 5861d8658bSDupuis, Chad * qedf_dbg_init - start up debugfs for the driver 59*ce7e0a84SLee Jones */ 6061d8658bSDupuis, Chad void 6161d8658bSDupuis, Chad qedf_dbg_init(char *drv_name) 6261d8658bSDupuis, Chad { 6361d8658bSDupuis, Chad QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Creating debugfs root node\n"); 6461d8658bSDupuis, Chad 6561d8658bSDupuis, Chad /* create qed dir in root of debugfs. NULL means debugfs root */ 6661d8658bSDupuis, Chad qedf_dbg_root = debugfs_create_dir(drv_name, NULL); 6761d8658bSDupuis, Chad } 6861d8658bSDupuis, Chad 69*ce7e0a84SLee Jones /* 7061d8658bSDupuis, Chad * qedf_dbg_exit - clean out the driver's debugfs entries 71*ce7e0a84SLee Jones */ 7261d8658bSDupuis, Chad void 7361d8658bSDupuis, Chad qedf_dbg_exit(void) 7461d8658bSDupuis, Chad { 7561d8658bSDupuis, Chad QEDF_INFO(NULL, QEDF_LOG_DEBUGFS, "Destroying debugfs root " 7661d8658bSDupuis, Chad "entry\n"); 7761d8658bSDupuis, Chad 7861d8658bSDupuis, Chad /* remove qed dir in root of debugfs */ 7961d8658bSDupuis, Chad debugfs_remove_recursive(qedf_dbg_root); 8061d8658bSDupuis, Chad qedf_dbg_root = NULL; 8161d8658bSDupuis, Chad } 8261d8658bSDupuis, Chad 83d9ea463aSArnd Bergmann const struct qedf_debugfs_ops qedf_debugfs_ops[] = { 8461d8658bSDupuis, Chad { "fp_int", NULL }, 8561d8658bSDupuis, Chad { "io_trace", NULL }, 8661d8658bSDupuis, Chad { "debug", NULL }, 8761d8658bSDupuis, Chad { "stop_io_on_error", NULL}, 8861d8658bSDupuis, Chad { "driver_stats", NULL}, 8961d8658bSDupuis, Chad { "clear_stats", NULL}, 9061d8658bSDupuis, Chad { "offload_stats", NULL}, 9161d8658bSDupuis, Chad /* This must be last */ 9261d8658bSDupuis, Chad { NULL, NULL } 9361d8658bSDupuis, Chad }; 9461d8658bSDupuis, Chad 9561d8658bSDupuis, Chad DECLARE_PER_CPU(struct qedf_percpu_iothread_s, qedf_percpu_iothreads); 9661d8658bSDupuis, Chad 9761d8658bSDupuis, Chad static ssize_t 9861d8658bSDupuis, Chad qedf_dbg_fp_int_cmd_read(struct file *filp, char __user *buffer, size_t count, 9961d8658bSDupuis, Chad loff_t *ppos) 10061d8658bSDupuis, Chad { 10161d8658bSDupuis, Chad size_t cnt = 0; 10261d8658bSDupuis, Chad int id; 10361d8658bSDupuis, Chad struct qedf_fastpath *fp = NULL; 10461d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = 10561d8658bSDupuis, Chad (struct qedf_dbg_ctx *)filp->private_data; 10661d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, 10761d8658bSDupuis, Chad struct qedf_ctx, dbg_ctx); 10861d8658bSDupuis, Chad 10961d8658bSDupuis, Chad QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n"); 11061d8658bSDupuis, Chad 11161d8658bSDupuis, Chad cnt = sprintf(buffer, "\nFastpath I/O completions\n\n"); 11261d8658bSDupuis, Chad 11361d8658bSDupuis, Chad for (id = 0; id < qedf->num_queues; id++) { 11461d8658bSDupuis, Chad fp = &(qedf->fp_array[id]); 11561d8658bSDupuis, Chad if (fp->sb_id == QEDF_SB_ID_NULL) 11661d8658bSDupuis, Chad continue; 11761d8658bSDupuis, Chad cnt += sprintf((buffer + cnt), "#%d: %lu\n", id, 11861d8658bSDupuis, Chad fp->completions); 11961d8658bSDupuis, Chad } 12061d8658bSDupuis, Chad 12161d8658bSDupuis, Chad cnt = min_t(int, count, cnt - *ppos); 12261d8658bSDupuis, Chad *ppos += cnt; 12361d8658bSDupuis, Chad return cnt; 12461d8658bSDupuis, Chad } 12561d8658bSDupuis, Chad 12661d8658bSDupuis, Chad static ssize_t 12761d8658bSDupuis, Chad qedf_dbg_fp_int_cmd_write(struct file *filp, const char __user *buffer, 12861d8658bSDupuis, Chad size_t count, loff_t *ppos) 12961d8658bSDupuis, Chad { 13061d8658bSDupuis, Chad if (!count || *ppos) 13161d8658bSDupuis, Chad return 0; 13261d8658bSDupuis, Chad 13361d8658bSDupuis, Chad return count; 13461d8658bSDupuis, Chad } 13561d8658bSDupuis, Chad 13661d8658bSDupuis, Chad static ssize_t 13761d8658bSDupuis, Chad qedf_dbg_debug_cmd_read(struct file *filp, char __user *buffer, size_t count, 13861d8658bSDupuis, Chad loff_t *ppos) 13961d8658bSDupuis, Chad { 14061d8658bSDupuis, Chad int cnt; 141e82e6ff7SSaurav Kashyap struct qedf_dbg_ctx *qedf_dbg = 14261d8658bSDupuis, Chad (struct qedf_dbg_ctx *)filp->private_data; 14361d8658bSDupuis, Chad 144e82e6ff7SSaurav Kashyap QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "debug mask=0x%x\n", qedf_debug); 14561d8658bSDupuis, Chad cnt = sprintf(buffer, "debug mask = 0x%x\n", qedf_debug); 14661d8658bSDupuis, Chad 14761d8658bSDupuis, Chad cnt = min_t(int, count, cnt - *ppos); 14861d8658bSDupuis, Chad *ppos += cnt; 14961d8658bSDupuis, Chad return cnt; 15061d8658bSDupuis, Chad } 15161d8658bSDupuis, Chad 15261d8658bSDupuis, Chad static ssize_t 15361d8658bSDupuis, Chad qedf_dbg_debug_cmd_write(struct file *filp, const char __user *buffer, 15461d8658bSDupuis, Chad size_t count, loff_t *ppos) 15561d8658bSDupuis, Chad { 15661d8658bSDupuis, Chad uint32_t val; 15761d8658bSDupuis, Chad void *kern_buf; 15861d8658bSDupuis, Chad int rval; 159e82e6ff7SSaurav Kashyap struct qedf_dbg_ctx *qedf_dbg = 16061d8658bSDupuis, Chad (struct qedf_dbg_ctx *)filp->private_data; 16161d8658bSDupuis, Chad 16261d8658bSDupuis, Chad if (!count || *ppos) 16361d8658bSDupuis, Chad return 0; 16461d8658bSDupuis, Chad 16561d8658bSDupuis, Chad kern_buf = memdup_user(buffer, count); 16661d8658bSDupuis, Chad if (IS_ERR(kern_buf)) 16761d8658bSDupuis, Chad return PTR_ERR(kern_buf); 16861d8658bSDupuis, Chad 16961d8658bSDupuis, Chad rval = kstrtouint(kern_buf, 10, &val); 17061d8658bSDupuis, Chad kfree(kern_buf); 17161d8658bSDupuis, Chad if (rval) 17261d8658bSDupuis, Chad return rval; 17361d8658bSDupuis, Chad 17461d8658bSDupuis, Chad if (val == 1) 17561d8658bSDupuis, Chad qedf_debug = QEDF_DEFAULT_LOG_MASK; 17661d8658bSDupuis, Chad else 17761d8658bSDupuis, Chad qedf_debug = val; 17861d8658bSDupuis, Chad 179e82e6ff7SSaurav Kashyap QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Setting debug=0x%x.\n", val); 18061d8658bSDupuis, Chad return count; 18161d8658bSDupuis, Chad } 18261d8658bSDupuis, Chad 18361d8658bSDupuis, Chad static ssize_t 18461d8658bSDupuis, Chad qedf_dbg_stop_io_on_error_cmd_read(struct file *filp, char __user *buffer, 18561d8658bSDupuis, Chad size_t count, loff_t *ppos) 18661d8658bSDupuis, Chad { 18761d8658bSDupuis, Chad int cnt; 18861d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = 18961d8658bSDupuis, Chad (struct qedf_dbg_ctx *)filp->private_data; 19061d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, 19161d8658bSDupuis, Chad struct qedf_ctx, dbg_ctx); 19261d8658bSDupuis, Chad 19361d8658bSDupuis, Chad QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n"); 19461d8658bSDupuis, Chad cnt = sprintf(buffer, "%s\n", 19561d8658bSDupuis, Chad qedf->stop_io_on_error ? "true" : "false"); 19661d8658bSDupuis, Chad 19761d8658bSDupuis, Chad cnt = min_t(int, count, cnt - *ppos); 19861d8658bSDupuis, Chad *ppos += cnt; 19961d8658bSDupuis, Chad return cnt; 20061d8658bSDupuis, Chad } 20161d8658bSDupuis, Chad 20261d8658bSDupuis, Chad static ssize_t 20361d8658bSDupuis, Chad qedf_dbg_stop_io_on_error_cmd_write(struct file *filp, 20461d8658bSDupuis, Chad const char __user *buffer, size_t count, 20561d8658bSDupuis, Chad loff_t *ppos) 20661d8658bSDupuis, Chad { 20761d8658bSDupuis, Chad void *kern_buf; 20861d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = 20961d8658bSDupuis, Chad (struct qedf_dbg_ctx *)filp->private_data; 21061d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx, 21161d8658bSDupuis, Chad dbg_ctx); 21261d8658bSDupuis, Chad 21361d8658bSDupuis, Chad QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n"); 21461d8658bSDupuis, Chad 21561d8658bSDupuis, Chad if (!count || *ppos) 21661d8658bSDupuis, Chad return 0; 21761d8658bSDupuis, Chad 21861d8658bSDupuis, Chad kern_buf = memdup_user(buffer, 6); 21961d8658bSDupuis, Chad if (IS_ERR(kern_buf)) 22061d8658bSDupuis, Chad return PTR_ERR(kern_buf); 22161d8658bSDupuis, Chad 22261d8658bSDupuis, Chad if (strncmp(kern_buf, "false", 5) == 0) 22361d8658bSDupuis, Chad qedf->stop_io_on_error = false; 22461d8658bSDupuis, Chad else if (strncmp(kern_buf, "true", 4) == 0) 22561d8658bSDupuis, Chad qedf->stop_io_on_error = true; 22661d8658bSDupuis, Chad else if (strncmp(kern_buf, "now", 3) == 0) 22761d8658bSDupuis, Chad /* Trigger from user to stop all I/O on this host */ 22861d8658bSDupuis, Chad set_bit(QEDF_DBG_STOP_IO, &qedf->flags); 22961d8658bSDupuis, Chad 23061d8658bSDupuis, Chad kfree(kern_buf); 23161d8658bSDupuis, Chad return count; 23261d8658bSDupuis, Chad } 23361d8658bSDupuis, Chad 23461d8658bSDupuis, Chad static int 23561d8658bSDupuis, Chad qedf_io_trace_show(struct seq_file *s, void *unused) 23661d8658bSDupuis, Chad { 23761d8658bSDupuis, Chad int i, idx = 0; 23861d8658bSDupuis, Chad struct qedf_ctx *qedf = s->private; 23961d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = &qedf->dbg_ctx; 24061d8658bSDupuis, Chad struct qedf_io_log *io_log; 24161d8658bSDupuis, Chad unsigned long flags; 24261d8658bSDupuis, Chad 24361d8658bSDupuis, Chad if (!qedf_io_tracing) { 24461d8658bSDupuis, Chad seq_puts(s, "I/O tracing not enabled.\n"); 24561d8658bSDupuis, Chad goto out; 24661d8658bSDupuis, Chad } 24761d8658bSDupuis, Chad 24861d8658bSDupuis, Chad QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "entered\n"); 24961d8658bSDupuis, Chad 25061d8658bSDupuis, Chad spin_lock_irqsave(&qedf->io_trace_lock, flags); 25161d8658bSDupuis, Chad idx = qedf->io_trace_idx; 25261d8658bSDupuis, Chad for (i = 0; i < QEDF_IO_TRACE_SIZE; i++) { 25361d8658bSDupuis, Chad io_log = &qedf->io_trace_buf[idx]; 25461d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->direction); 25561d8658bSDupuis, Chad seq_printf(s, "0x%x:", io_log->task_id); 25661d8658bSDupuis, Chad seq_printf(s, "0x%06x:", io_log->port_id); 25761d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->lun); 25861d8658bSDupuis, Chad seq_printf(s, "0x%02x:", io_log->op); 25961d8658bSDupuis, Chad seq_printf(s, "0x%02x%02x%02x%02x:", io_log->lba[0], 26061d8658bSDupuis, Chad io_log->lba[1], io_log->lba[2], io_log->lba[3]); 26161d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->bufflen); 26261d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->sg_count); 26361d8658bSDupuis, Chad seq_printf(s, "0x%08x:", io_log->result); 26461d8658bSDupuis, Chad seq_printf(s, "%lu:", io_log->jiffies); 26561d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->refcount); 26661d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->req_cpu); 26761d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->int_cpu); 26861d8658bSDupuis, Chad seq_printf(s, "%d:", io_log->rsp_cpu); 26961d8658bSDupuis, Chad seq_printf(s, "%d\n", io_log->sge_type); 27061d8658bSDupuis, Chad 27161d8658bSDupuis, Chad idx++; 27261d8658bSDupuis, Chad if (idx == QEDF_IO_TRACE_SIZE) 27361d8658bSDupuis, Chad idx = 0; 27461d8658bSDupuis, Chad } 27561d8658bSDupuis, Chad spin_unlock_irqrestore(&qedf->io_trace_lock, flags); 27661d8658bSDupuis, Chad 27761d8658bSDupuis, Chad out: 27861d8658bSDupuis, Chad return 0; 27961d8658bSDupuis, Chad } 28061d8658bSDupuis, Chad 28161d8658bSDupuis, Chad static int 28261d8658bSDupuis, Chad qedf_dbg_io_trace_open(struct inode *inode, struct file *file) 28361d8658bSDupuis, Chad { 28461d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = inode->i_private; 28561d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, 28661d8658bSDupuis, Chad struct qedf_ctx, dbg_ctx); 28761d8658bSDupuis, Chad 28861d8658bSDupuis, Chad return single_open(file, qedf_io_trace_show, qedf); 28961d8658bSDupuis, Chad } 29061d8658bSDupuis, Chad 291892f63d4SChad Dupuis /* Based on fip_state enum from libfcoe.h */ 292892f63d4SChad Dupuis static char *fip_state_names[] = { 293892f63d4SChad Dupuis "FIP_ST_DISABLED", 294892f63d4SChad Dupuis "FIP_ST_LINK_WAIT", 295892f63d4SChad Dupuis "FIP_ST_AUTO", 296892f63d4SChad Dupuis "FIP_ST_NON_FIP", 297892f63d4SChad Dupuis "FIP_ST_ENABLED", 298892f63d4SChad Dupuis "FIP_ST_VNMP_START", 299892f63d4SChad Dupuis "FIP_ST_VNMP_PROBE1", 300892f63d4SChad Dupuis "FIP_ST_VNMP_PROBE2", 301892f63d4SChad Dupuis "FIP_ST_VNMP_CLAIM", 302892f63d4SChad Dupuis "FIP_ST_VNMP_UP", 303892f63d4SChad Dupuis }; 304892f63d4SChad Dupuis 305892f63d4SChad Dupuis /* Based on fc_rport_state enum from libfc.h */ 306892f63d4SChad Dupuis static char *fc_rport_state_names[] = { 307892f63d4SChad Dupuis "RPORT_ST_INIT", 308892f63d4SChad Dupuis "RPORT_ST_FLOGI", 309892f63d4SChad Dupuis "RPORT_ST_PLOGI_WAIT", 310892f63d4SChad Dupuis "RPORT_ST_PLOGI", 311892f63d4SChad Dupuis "RPORT_ST_PRLI", 312892f63d4SChad Dupuis "RPORT_ST_RTV", 313892f63d4SChad Dupuis "RPORT_ST_READY", 314892f63d4SChad Dupuis "RPORT_ST_ADISC", 315892f63d4SChad Dupuis "RPORT_ST_DELETE", 316892f63d4SChad Dupuis }; 317892f63d4SChad Dupuis 31861d8658bSDupuis, Chad static int 31961d8658bSDupuis, Chad qedf_driver_stats_show(struct seq_file *s, void *unused) 32061d8658bSDupuis, Chad { 32161d8658bSDupuis, Chad struct qedf_ctx *qedf = s->private; 32261d8658bSDupuis, Chad struct qedf_rport *fcport; 32361d8658bSDupuis, Chad struct fc_rport_priv *rdata; 32461d8658bSDupuis, Chad 325892f63d4SChad Dupuis seq_printf(s, "Host WWNN/WWPN: %016llx/%016llx\n", 326892f63d4SChad Dupuis qedf->wwnn, qedf->wwpn); 327892f63d4SChad Dupuis seq_printf(s, "Host NPortID: %06x\n", qedf->lport->port_id); 328892f63d4SChad Dupuis seq_printf(s, "Link State: %s\n", atomic_read(&qedf->link_state) ? 329892f63d4SChad Dupuis "Up" : "Down"); 330892f63d4SChad Dupuis seq_printf(s, "Logical Link State: %s\n", qedf->lport->link_up ? 331892f63d4SChad Dupuis "Up" : "Down"); 332892f63d4SChad Dupuis seq_printf(s, "FIP state: %s\n", fip_state_names[qedf->ctlr.state]); 333892f63d4SChad Dupuis seq_printf(s, "FIP VLAN ID: %d\n", qedf->vlan_id & 0xfff); 334892f63d4SChad Dupuis seq_printf(s, "FIP 802.1Q Priority: %d\n", qedf->prio); 335892f63d4SChad Dupuis if (qedf->ctlr.sel_fcf) { 336892f63d4SChad Dupuis seq_printf(s, "FCF WWPN: %016llx\n", 337892f63d4SChad Dupuis qedf->ctlr.sel_fcf->switch_name); 338892f63d4SChad Dupuis seq_printf(s, "FCF MAC: %pM\n", qedf->ctlr.sel_fcf->fcf_mac); 339892f63d4SChad Dupuis } else { 340892f63d4SChad Dupuis seq_puts(s, "FCF not selected\n"); 341892f63d4SChad Dupuis } 342892f63d4SChad Dupuis 343892f63d4SChad Dupuis seq_puts(s, "\nSGE stats:\n\n"); 34461d8658bSDupuis, Chad seq_printf(s, "cmg_mgr free io_reqs: %d\n", 34561d8658bSDupuis, Chad atomic_read(&qedf->cmd_mgr->free_list_cnt)); 34661d8658bSDupuis, Chad seq_printf(s, "slow SGEs: %d\n", qedf->slow_sge_ios); 34761d8658bSDupuis, Chad seq_printf(s, "fast SGEs: %d\n\n", qedf->fast_sge_ios); 34861d8658bSDupuis, Chad 34961d8658bSDupuis, Chad seq_puts(s, "Offloaded ports:\n\n"); 35061d8658bSDupuis, Chad 35161d8658bSDupuis, Chad rcu_read_lock(); 35261d8658bSDupuis, Chad list_for_each_entry_rcu(fcport, &qedf->fcports, peers) { 35361d8658bSDupuis, Chad rdata = fcport->rdata; 35461d8658bSDupuis, Chad if (rdata == NULL) 35561d8658bSDupuis, Chad continue; 356892f63d4SChad Dupuis seq_printf(s, "%016llx/%016llx/%06x: state=%s, free_sqes=%d, num_active_ios=%d\n", 357892f63d4SChad Dupuis rdata->rport->node_name, rdata->rport->port_name, 358892f63d4SChad Dupuis rdata->ids.port_id, 359892f63d4SChad Dupuis fc_rport_state_names[rdata->rp_state], 360892f63d4SChad Dupuis atomic_read(&fcport->free_sqes), 36161d8658bSDupuis, Chad atomic_read(&fcport->num_active_ios)); 36261d8658bSDupuis, Chad } 36361d8658bSDupuis, Chad rcu_read_unlock(); 36461d8658bSDupuis, Chad 36561d8658bSDupuis, Chad return 0; 36661d8658bSDupuis, Chad } 36761d8658bSDupuis, Chad 36861d8658bSDupuis, Chad static int 36961d8658bSDupuis, Chad qedf_dbg_driver_stats_open(struct inode *inode, struct file *file) 37061d8658bSDupuis, Chad { 37161d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = inode->i_private; 37261d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, 37361d8658bSDupuis, Chad struct qedf_ctx, dbg_ctx); 37461d8658bSDupuis, Chad 37561d8658bSDupuis, Chad return single_open(file, qedf_driver_stats_show, qedf); 37661d8658bSDupuis, Chad } 37761d8658bSDupuis, Chad 37861d8658bSDupuis, Chad static ssize_t 37961d8658bSDupuis, Chad qedf_dbg_clear_stats_cmd_read(struct file *filp, char __user *buffer, 38061d8658bSDupuis, Chad size_t count, loff_t *ppos) 38161d8658bSDupuis, Chad { 38261d8658bSDupuis, Chad int cnt = 0; 38361d8658bSDupuis, Chad 38461d8658bSDupuis, Chad /* Essentially a read stub */ 38561d8658bSDupuis, Chad cnt = min_t(int, count, cnt - *ppos); 38661d8658bSDupuis, Chad *ppos += cnt; 38761d8658bSDupuis, Chad return cnt; 38861d8658bSDupuis, Chad } 38961d8658bSDupuis, Chad 39061d8658bSDupuis, Chad static ssize_t 39161d8658bSDupuis, Chad qedf_dbg_clear_stats_cmd_write(struct file *filp, 39261d8658bSDupuis, Chad const char __user *buffer, size_t count, 39361d8658bSDupuis, Chad loff_t *ppos) 39461d8658bSDupuis, Chad { 39561d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = 39661d8658bSDupuis, Chad (struct qedf_dbg_ctx *)filp->private_data; 39761d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, struct qedf_ctx, 39861d8658bSDupuis, Chad dbg_ctx); 39961d8658bSDupuis, Chad 40061d8658bSDupuis, Chad QEDF_INFO(qedf_dbg, QEDF_LOG_DEBUGFS, "Clearing stat counters.\n"); 40161d8658bSDupuis, Chad 40261d8658bSDupuis, Chad if (!count || *ppos) 40361d8658bSDupuis, Chad return 0; 40461d8658bSDupuis, Chad 40561d8658bSDupuis, Chad /* Clear stat counters exposed by 'stats' node */ 40661d8658bSDupuis, Chad qedf->slow_sge_ios = 0; 40761d8658bSDupuis, Chad qedf->fast_sge_ios = 0; 40861d8658bSDupuis, Chad 40961d8658bSDupuis, Chad return count; 41061d8658bSDupuis, Chad } 41161d8658bSDupuis, Chad 41261d8658bSDupuis, Chad static int 41361d8658bSDupuis, Chad qedf_offload_stats_show(struct seq_file *s, void *unused) 41461d8658bSDupuis, Chad { 41561d8658bSDupuis, Chad struct qedf_ctx *qedf = s->private; 41661d8658bSDupuis, Chad struct qed_fcoe_stats *fw_fcoe_stats; 41761d8658bSDupuis, Chad 41861d8658bSDupuis, Chad fw_fcoe_stats = kmalloc(sizeof(struct qed_fcoe_stats), GFP_KERNEL); 41961d8658bSDupuis, Chad if (!fw_fcoe_stats) { 42061d8658bSDupuis, Chad QEDF_ERR(&(qedf->dbg_ctx), "Could not allocate memory for " 42161d8658bSDupuis, Chad "fw_fcoe_stats.\n"); 42261d8658bSDupuis, Chad goto out; 42361d8658bSDupuis, Chad } 42461d8658bSDupuis, Chad 42561d8658bSDupuis, Chad /* Query firmware for offload stats */ 42661d8658bSDupuis, Chad qed_ops->get_stats(qedf->cdev, fw_fcoe_stats); 42761d8658bSDupuis, Chad 42861d8658bSDupuis, Chad seq_printf(s, "fcoe_rx_byte_cnt=%llu\n" 42961d8658bSDupuis, Chad "fcoe_rx_data_pkt_cnt=%llu\n" 43061d8658bSDupuis, Chad "fcoe_rx_xfer_pkt_cnt=%llu\n" 43161d8658bSDupuis, Chad "fcoe_rx_other_pkt_cnt=%llu\n" 43261d8658bSDupuis, Chad "fcoe_silent_drop_pkt_cmdq_full_cnt=%u\n" 43361d8658bSDupuis, Chad "fcoe_silent_drop_pkt_crc_error_cnt=%u\n" 43461d8658bSDupuis, Chad "fcoe_silent_drop_pkt_task_invalid_cnt=%u\n" 43561d8658bSDupuis, Chad "fcoe_silent_drop_total_pkt_cnt=%u\n" 43661d8658bSDupuis, Chad "fcoe_silent_drop_pkt_rq_full_cnt=%u\n" 43761d8658bSDupuis, Chad "fcoe_tx_byte_cnt=%llu\n" 43861d8658bSDupuis, Chad "fcoe_tx_data_pkt_cnt=%llu\n" 43961d8658bSDupuis, Chad "fcoe_tx_xfer_pkt_cnt=%llu\n" 44061d8658bSDupuis, Chad "fcoe_tx_other_pkt_cnt=%llu\n", 44161d8658bSDupuis, Chad fw_fcoe_stats->fcoe_rx_byte_cnt, 44261d8658bSDupuis, Chad fw_fcoe_stats->fcoe_rx_data_pkt_cnt, 44361d8658bSDupuis, Chad fw_fcoe_stats->fcoe_rx_xfer_pkt_cnt, 44461d8658bSDupuis, Chad fw_fcoe_stats->fcoe_rx_other_pkt_cnt, 44561d8658bSDupuis, Chad fw_fcoe_stats->fcoe_silent_drop_pkt_cmdq_full_cnt, 44661d8658bSDupuis, Chad fw_fcoe_stats->fcoe_silent_drop_pkt_crc_error_cnt, 44761d8658bSDupuis, Chad fw_fcoe_stats->fcoe_silent_drop_pkt_task_invalid_cnt, 44861d8658bSDupuis, Chad fw_fcoe_stats->fcoe_silent_drop_total_pkt_cnt, 44961d8658bSDupuis, Chad fw_fcoe_stats->fcoe_silent_drop_pkt_rq_full_cnt, 45061d8658bSDupuis, Chad fw_fcoe_stats->fcoe_tx_byte_cnt, 45161d8658bSDupuis, Chad fw_fcoe_stats->fcoe_tx_data_pkt_cnt, 45261d8658bSDupuis, Chad fw_fcoe_stats->fcoe_tx_xfer_pkt_cnt, 45361d8658bSDupuis, Chad fw_fcoe_stats->fcoe_tx_other_pkt_cnt); 45461d8658bSDupuis, Chad 45561d8658bSDupuis, Chad kfree(fw_fcoe_stats); 45661d8658bSDupuis, Chad out: 45761d8658bSDupuis, Chad return 0; 45861d8658bSDupuis, Chad } 45961d8658bSDupuis, Chad 46061d8658bSDupuis, Chad static int 46161d8658bSDupuis, Chad qedf_dbg_offload_stats_open(struct inode *inode, struct file *file) 46261d8658bSDupuis, Chad { 46361d8658bSDupuis, Chad struct qedf_dbg_ctx *qedf_dbg = inode->i_private; 46461d8658bSDupuis, Chad struct qedf_ctx *qedf = container_of(qedf_dbg, 46561d8658bSDupuis, Chad struct qedf_ctx, dbg_ctx); 46661d8658bSDupuis, Chad 46761d8658bSDupuis, Chad return single_open(file, qedf_offload_stats_show, qedf); 46861d8658bSDupuis, Chad } 46961d8658bSDupuis, Chad 47061d8658bSDupuis, Chad const struct file_operations qedf_dbg_fops[] = { 47161d8658bSDupuis, Chad qedf_dbg_fileops(qedf, fp_int), 47261d8658bSDupuis, Chad qedf_dbg_fileops_seq(qedf, io_trace), 47361d8658bSDupuis, Chad qedf_dbg_fileops(qedf, debug), 47461d8658bSDupuis, Chad qedf_dbg_fileops(qedf, stop_io_on_error), 47561d8658bSDupuis, Chad qedf_dbg_fileops_seq(qedf, driver_stats), 47661d8658bSDupuis, Chad qedf_dbg_fileops(qedf, clear_stats), 47761d8658bSDupuis, Chad qedf_dbg_fileops_seq(qedf, offload_stats), 47861d8658bSDupuis, Chad /* This must be last */ 479efacae6dSKees Cook { }, 48061d8658bSDupuis, Chad }; 48161d8658bSDupuis, Chad 48261d8658bSDupuis, Chad #else /* CONFIG_DEBUG_FS */ 48361d8658bSDupuis, Chad void qedf_dbg_host_init(struct qedf_dbg_ctx *); 48461d8658bSDupuis, Chad void qedf_dbg_host_exit(struct qedf_dbg_ctx *); 48561d8658bSDupuis, Chad void qedf_dbg_init(char *); 48661d8658bSDupuis, Chad void qedf_dbg_exit(void); 48761d8658bSDupuis, Chad #endif /* CONFIG_DEBUG_FS */ 488