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- /*
- * QLogic Fibre Channel HBA Driver
- * Copyright (c) 2003-2014 QLogic Corporation
- *
- * See LICENSE.qla2xxx for copyright and licensing details.
- */
- #include "qla_def.h"
- #include <linux/debugfs.h>
- #include <linux/seq_file.h>
- static struct dentry *qla2x00_dfs_root;
- static atomic_t qla2x00_dfs_root_count;
- static int
- qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
- {
- scsi_qla_host_t *vha = s->private;
- struct qla_hw_data *ha = vha->hw;
- unsigned long flags;
- struct qla_tgt_sess *sess = NULL;
- struct qla_tgt *tgt= vha->vha_tgt.qla_tgt;
- seq_printf(s, "%s\n",vha->host_str);
- if (tgt) {
- seq_printf(s, "Port ID Port Name Handle\n");
- spin_lock_irqsave(&ha->tgt.sess_lock, flags);
- list_for_each_entry(sess, &tgt->sess_list, sess_list_entry) {
- seq_printf(s, "%02x:%02x:%02x %8phC %d\n",
- sess->s_id.b.domain,sess->s_id.b.area,
- sess->s_id.b.al_pa, sess->port_name,
- sess->loop_id);
- }
- spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
- }
- return 0;
- }
- static int
- qla2x00_dfs_tgt_sess_open(struct inode *inode, struct file *file)
- {
- scsi_qla_host_t *vha = inode->i_private;
- return single_open(file, qla2x00_dfs_tgt_sess_show, vha);
- }
- static const struct file_operations dfs_tgt_sess_ops = {
- .open = qla2x00_dfs_tgt_sess_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- };
- static int
- qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
- {
- struct scsi_qla_host *vha = s->private;
- struct qla_hw_data *ha = vha->hw;
- seq_puts(s, "FW Resource count\n\n");
- seq_printf(s, "Original TGT exchg count[%d]\n",
- ha->orig_fw_tgt_xcb_count);
- seq_printf(s, "current TGT exchg count[%d]\n",
- ha->cur_fw_tgt_xcb_count);
- seq_printf(s, "original Initiator Exchange count[%d]\n",
- ha->orig_fw_xcb_count);
- seq_printf(s, "Current Initiator Exchange count[%d]\n",
- ha->cur_fw_xcb_count);
- seq_printf(s, "Original IOCB count[%d]\n", ha->orig_fw_iocb_count);
- seq_printf(s, "Current IOCB count[%d]\n", ha->cur_fw_iocb_count);
- seq_printf(s, "MAX VP count[%d]\n", ha->max_npiv_vports);
- seq_printf(s, "MAX FCF count[%d]\n", ha->fw_max_fcf_count);
- return 0;
- }
- static int
- qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file)
- {
- struct scsi_qla_host *vha = inode->i_private;
- return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
- }
- static const struct file_operations dfs_fw_resource_cnt_ops = {
- .open = qla_dfs_fw_resource_cnt_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- };
- static int
- qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
- {
- struct scsi_qla_host *vha = s->private;
- seq_puts(s, "Target Counters\n");
- seq_printf(s, "qla_core_sbt_cmd = %lld\n",
- vha->tgt_counters.qla_core_sbt_cmd);
- seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
- vha->tgt_counters.qla_core_ret_sta_ctio);
- seq_printf(s, "qla_core_ret_ctio = %lld\n",
- vha->tgt_counters.qla_core_ret_ctio);
- seq_printf(s, "core_qla_que_buf = %lld\n",
- vha->tgt_counters.core_qla_que_buf);
- seq_printf(s, "core_qla_snd_status = %lld\n",
- vha->tgt_counters.core_qla_snd_status);
- seq_printf(s, "core_qla_free_cmd = %lld\n",
- vha->tgt_counters.core_qla_free_cmd);
- seq_printf(s, "num alloc iocb failed = %lld\n",
- vha->tgt_counters.num_alloc_iocb_failed);
- seq_printf(s, "num term exchange sent = %lld\n",
- vha->tgt_counters.num_term_xchg_sent);
- seq_printf(s, "num Q full sent = %lld\n",
- vha->tgt_counters.num_q_full_sent);
- return 0;
- }
- static int
- qla_dfs_tgt_counters_open(struct inode *inode, struct file *file)
- {
- struct scsi_qla_host *vha = inode->i_private;
- return single_open(file, qla_dfs_tgt_counters_show, vha);
- }
- static const struct file_operations dfs_tgt_counters_ops = {
- .open = qla_dfs_tgt_counters_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- };
- static int
- qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
- {
- scsi_qla_host_t *vha = s->private;
- uint32_t cnt;
- uint32_t *fce;
- uint64_t fce_start;
- struct qla_hw_data *ha = vha->hw;
- mutex_lock(&ha->fce_mutex);
- seq_puts(s, "FCE Trace Buffer\n");
- seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr);
- seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma);
- seq_puts(s, "FCE Enable Registers\n");
- seq_printf(s, "%08x %08x %08x %08x %08x %08x\n",
- ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4],
- ha->fce_mb[5], ha->fce_mb[6]);
- fce = (uint32_t *) ha->fce;
- fce_start = (unsigned long long) ha->fce_dma;
- for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) {
- if (cnt % 8 == 0)
- seq_printf(s, "\n%llx: ",
- (unsigned long long)((cnt * 4) + fce_start));
- else
- seq_putc(s, ' ');
- seq_printf(s, "%08x", *fce++);
- }
- seq_puts(s, "\nEnd\n");
- mutex_unlock(&ha->fce_mutex);
- return 0;
- }
- static int
- qla2x00_dfs_fce_open(struct inode *inode, struct file *file)
- {
- scsi_qla_host_t *vha = inode->i_private;
- struct qla_hw_data *ha = vha->hw;
- int rval;
- if (!ha->flags.fce_enabled)
- goto out;
- mutex_lock(&ha->fce_mutex);
- /* Pause tracing to flush FCE buffers. */
- rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
- if (rval)
- ql_dbg(ql_dbg_user, vha, 0x705c,
- "DebugFS: Unable to disable FCE (%d).\n", rval);
- ha->flags.fce_enabled = 0;
- mutex_unlock(&ha->fce_mutex);
- out:
- return single_open(file, qla2x00_dfs_fce_show, vha);
- }
- static int
- qla2x00_dfs_fce_release(struct inode *inode, struct file *file)
- {
- scsi_qla_host_t *vha = inode->i_private;
- struct qla_hw_data *ha = vha->hw;
- int rval;
- if (ha->flags.fce_enabled)
- goto out;
- mutex_lock(&ha->fce_mutex);
- /* Re-enable FCE tracing. */
- ha->flags.fce_enabled = 1;
- memset(ha->fce, 0, fce_calc_size(ha->fce_bufs));
- rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs,
- ha->fce_mb, &ha->fce_bufs);
- if (rval) {
- ql_dbg(ql_dbg_user, vha, 0x700d,
- "DebugFS: Unable to reinitialize FCE (%d).\n", rval);
- ha->flags.fce_enabled = 0;
- }
- mutex_unlock(&ha->fce_mutex);
- out:
- return single_release(inode, file);
- }
- static const struct file_operations dfs_fce_ops = {
- .open = qla2x00_dfs_fce_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = qla2x00_dfs_fce_release,
- };
- int
- qla2x00_dfs_setup(scsi_qla_host_t *vha)
- {
- struct qla_hw_data *ha = vha->hw;
- if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
- !IS_QLA27XX(ha))
- goto out;
- if (!ha->fce)
- goto out;
- if (qla2x00_dfs_root)
- goto create_dir;
- atomic_set(&qla2x00_dfs_root_count, 0);
- qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
- if (!qla2x00_dfs_root) {
- ql_log(ql_log_warn, vha, 0x00f7,
- "Unable to create debugfs root directory.\n");
- goto out;
- }
- create_dir:
- if (ha->dfs_dir)
- goto create_nodes;
- mutex_init(&ha->fce_mutex);
- ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
- if (!ha->dfs_dir) {
- ql_log(ql_log_warn, vha, 0x00f8,
- "Unable to create debugfs ha directory.\n");
- goto out;
- }
- atomic_inc(&qla2x00_dfs_root_count);
- create_nodes:
- ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
- S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops);
- if (!ha->dfs_fw_resource_cnt) {
- ql_log(ql_log_warn, vha, 0x00fd,
- "Unable to create debugFS fw_resource_count node.\n");
- goto out;
- }
- ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
- ha->dfs_dir, vha, &dfs_tgt_counters_ops);
- if (!ha->dfs_tgt_counters) {
- ql_log(ql_log_warn, vha, 0xd301,
- "Unable to create debugFS tgt_counters node.\n");
- goto out;
- }
- ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
- &dfs_fce_ops);
- if (!ha->dfs_fce) {
- ql_log(ql_log_warn, vha, 0x00f9,
- "Unable to create debugfs fce node.\n");
- goto out;
- }
- ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
- S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops);
- if (!ha->tgt.dfs_tgt_sess) {
- ql_log(ql_log_warn, vha, 0xffff,
- "Unable to create debugFS tgt_sess node.\n");
- goto out;
- }
- out:
- return 0;
- }
- int
- qla2x00_dfs_remove(scsi_qla_host_t *vha)
- {
- struct qla_hw_data *ha = vha->hw;
- if (ha->tgt.dfs_tgt_sess) {
- debugfs_remove(ha->tgt.dfs_tgt_sess);
- ha->tgt.dfs_tgt_sess = NULL;
- }
- if (ha->dfs_fw_resource_cnt) {
- debugfs_remove(ha->dfs_fw_resource_cnt);
- ha->dfs_fw_resource_cnt = NULL;
- }
- if (ha->dfs_tgt_counters) {
- debugfs_remove(ha->dfs_tgt_counters);
- ha->dfs_tgt_counters = NULL;
- }
- if (ha->dfs_fce) {
- debugfs_remove(ha->dfs_fce);
- ha->dfs_fce = NULL;
- }
- if (ha->dfs_dir) {
- debugfs_remove(ha->dfs_dir);
- ha->dfs_dir = NULL;
- atomic_dec(&qla2x00_dfs_root_count);
- }
- if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
- qla2x00_dfs_root) {
- debugfs_remove(qla2x00_dfs_root);
- qla2x00_dfs_root = NULL;
- }
- return 0;
- }
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