[linux-2.6-block.git] / drivers / scsi / qla2xxx / qla_dfs.c

/*
 * 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 fc_port *sess = NULL;
	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;

	seq_printf(s, "%s\n", vha->host_str);
	if (tgt) {
		seq_puts(s, "Port ID   Port Name                Handle\n");

		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
		list_for_each_entry(sess, &vha->vp_fcports, list)
			seq_printf(s, "%02x:%02x:%02x  %8phC  %d\n",
			    sess->d_id.b.domain, sess->d_id.b.area,
			    sess->d_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
qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused)
{
	scsi_qla_host_t *vha = s->private;
	struct qla_hw_data *ha = vha->hw;
	struct gid_list_info *gid_list;
	dma_addr_t gid_list_dma;
	fc_port_t fc_port;
	char *id_iter;
	int rc, i;
	uint16_t entries, loop_id;
	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;

	seq_printf(s, "%s\n", vha->host_str);
	if (tgt) {
		gid_list = dma_alloc_coherent(&ha->pdev->dev,
		    qla2x00_gid_list_size(ha),
		    &gid_list_dma, GFP_KERNEL);
		if (!gid_list) {
			ql_dbg(ql_dbg_user, vha, 0x7018,
			    "DMA allocation failed for %u\n",
			     qla2x00_gid_list_size(ha));
			return 0;
		}

		rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
		    &entries);
		if (rc != QLA_SUCCESS)
			goto out_free_id_list;

		id_iter = (char *)gid_list;

		seq_puts(s, "Port Name	Port ID 	Loop ID\n");

		for (i = 0; i < entries; i++) {
			struct gid_list_info *gid =
			    (struct gid_list_info *)id_iter;
			loop_id = le16_to_cpu(gid->loop_id);
			memset(&fc_port, 0, sizeof(fc_port_t));

			fc_port.loop_id = loop_id;

			rc = qla24xx_gpdb_wait(vha, &fc_port, 0);
			seq_printf(s, "%8phC  %02x%02x%02x  %d\n",
				fc_port.port_name, fc_port.d_id.b.domain,
				fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
				fc_port.loop_id);
			id_iter += ha->gid_list_info_size;
		}
out_free_id_list:
		dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
		    gid_list, gid_list_dma);
	}

	return 0;
}

static int
qla2x00_dfs_tgt_port_database_open(struct inode *inode, struct file *file)
{
	scsi_qla_host_t *vha = inode->i_private;

	return single_open(file, qla2x00_dfs_tgt_port_database_show, vha);
}

static const struct file_operations dfs_tgt_port_database_ops = {
	.open		= qla2x00_dfs_tgt_port_database_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;
	uint16_t mb[MAX_IOCB_MB_REG];
	int rc;

	rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
	if (rc != QLA_SUCCESS) {
		seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
	} else {
		seq_puts(s, "FW Resource count\n\n");
		seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
		seq_printf(s, "current TGT exchg count[%d]\n", mb[2]);
		seq_printf(s, "original Initiator Exchange count[%d]\n", mb[3]);
		seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[6]);
		seq_printf(s, "Original IOCB count[%d]\n", mb[7]);
		seq_printf(s, "Current IOCB count[%d]\n", mb[10]);
		seq_printf(s, "MAX VP count[%d]\n", mb[11]);
		seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
		seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
		    mb[20]);
		seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
		    mb[21]);
		seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
		    mb[22]);
		seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
		    mb[23]);

	}

	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;
	struct qla_qpair *qpair = vha->hw->base_qpair;
	uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
		core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
		num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
	u16 i;

	qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
	core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
	qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
	core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
	qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
	core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
	num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
	num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
	num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;

	for (i = 0; i < vha->hw->max_qpairs; i++) {
		qpair = vha->hw->queue_pair_map[i];
		if (!qpair)
			continue;
		qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
		core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
		qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
		core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
		qla_core_ret_sta_ctio +=
		    qpair->tgt_counters.qla_core_ret_sta_ctio;
		core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
		num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
		num_alloc_iocb_failed +=
		    qpair->tgt_counters.num_alloc_iocb_failed;
		num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
	}

	seq_puts(s, "Target Counters\n");
	seq_printf(s, "qla_core_sbt_cmd = %lld\n",
		qla_core_sbt_cmd);
	seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
		qla_core_ret_sta_ctio);
	seq_printf(s, "qla_core_ret_ctio = %lld\n",
		qla_core_ret_ctio);
	seq_printf(s, "core_qla_que_buf = %lld\n",
		core_qla_que_buf);
	seq_printf(s, "core_qla_snd_status = %lld\n",
		core_qla_snd_status);
	seq_printf(s, "core_qla_free_cmd = %lld\n",
		core_qla_free_cmd);
	seq_printf(s, "num alloc iocb failed = %lld\n",
		num_alloc_iocb_failed);
	seq_printf(s, "num term exchange sent = %lld\n",
		num_term_xchg_sent);
	seq_printf(s, "num Q full sent = %lld\n",
		num_q_full_sent);

	/* DIF stats */
	seq_printf(s, "DIF Inp Bytes = %lld\n",
		vha->qla_stats.qla_dif_stats.dif_input_bytes);
	seq_printf(s, "DIF Outp Bytes = %lld\n",
		vha->qla_stats.qla_dif_stats.dif_output_bytes);
	seq_printf(s, "DIF Inp Req = %lld\n",
		vha->qla_stats.qla_dif_stats.dif_input_requests);
	seq_printf(s, "DIF Outp Req = %lld\n",
		vha->qla_stats.qla_dif_stats.dif_output_requests);
	seq_printf(s, "DIF Guard err = %d\n",
		vha->qla_stats.qla_dif_stats.dif_guard_err);
	seq_printf(s, "DIF Ref tag err = %d\n",
		vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
	seq_printf(s, "DIF App tag err = %d\n",
		vha->qla_stats.qla_dif_stats.dif_app_tag_err);
	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,
};

static int
qla_dfs_naqp_show(struct seq_file *s, void *unused)
{
	struct scsi_qla_host *vha = s->private;
	struct qla_hw_data *ha = vha->hw;

	seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
	return 0;
}

static int
qla_dfs_naqp_open(struct inode *inode, struct file *file)
{
	struct scsi_qla_host *vha = inode->i_private;

	return single_open(file, qla_dfs_naqp_show, vha);
}

static ssize_t
qla_dfs_naqp_write(struct file *file, const char __user *buffer,
    size_t count, loff_t *pos)
{
	struct seq_file *s = file->private_data;
	struct scsi_qla_host *vha = s->private;
	struct qla_hw_data *ha = vha->hw;
	char *buf;
	int rc = 0;
	unsigned long num_act_qp;

	if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha))) {
		pr_err("host%ld: this adapter does not support Multi Q.",
		    vha->host_no);
		return -EINVAL;
	}

	if (!vha->flags.qpairs_available) {
		pr_err("host%ld: Driver is not setup with Multi Q.",
		    vha->host_no);
		return -EINVAL;
	}
	buf = memdup_user_nul(buffer, count);
	if (IS_ERR(buf)) {
		pr_err("host%ld: fail to copy user buffer.",
		    vha->host_no);
		return PTR_ERR(buf);
	}

	num_act_qp = simple_strtoul(buf, NULL, 0);

	if (num_act_qp >= vha->hw->max_qpairs) {
		pr_err("User set invalid number of qpairs %lu. Max = %d",
		    num_act_qp, vha->hw->max_qpairs);
		rc = -EINVAL;
		goto out_free;
	}

	if (num_act_qp != ha->tgt.num_act_qpairs) {
		ha->tgt.num_act_qpairs = num_act_qp;
		qlt_clr_qp_table(vha);
	}
	rc = count;
out_free:
	kfree(buf);
	return rc;
}

static const struct file_operations dfs_naqp_ops = {
	.open		= qla_dfs_naqp_open,
	.read		= seq_read,
	.llseek		= seq_lseek,
	.release	= single_release,
	.write		= qla_dfs_naqp_write,
};


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);

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);

	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);

	ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
	    ha->dfs_dir, vha, &dfs_tgt_counters_ops);

	ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
	    S_IRUSR,  ha->dfs_dir, vha, &dfs_tgt_port_database_ops);

	ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
	    &dfs_fce_ops);

	ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
		S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops);

	if (IS_QLA27XX(ha) || IS_QLA83XX(ha))
		ha->tgt.dfs_naqp = debugfs_create_file("naqp",
		    0400, ha->dfs_dir, vha, &dfs_naqp_ops);
out:
	return 0;
}

int
qla2x00_dfs_remove(scsi_qla_host_t *vha)
{
	struct qla_hw_data *ha = vha->hw;

	if (ha->tgt.dfs_naqp) {
		debugfs_remove(ha->tgt.dfs_naqp);
		ha->tgt.dfs_naqp = NULL;
	}

	if (ha->tgt.dfs_tgt_sess) {
		debugfs_remove(ha->tgt.dfs_tgt_sess);
		ha->tgt.dfs_tgt_sess = NULL;
	}

	if (ha->tgt.dfs_tgt_port_database) {
		debugfs_remove(ha->tgt.dfs_tgt_port_database);
		ha->tgt.dfs_tgt_port_database = 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;
}
Commit	Line	Data
df613b96 AV	1	/*
df613b96 AV	2	* QLogic Fibre Channel HBA Driver
bd21eaf9	3	* Copyright (c) 2003-2014 QLogic Corporation
df613b96 AV	4	*
	5	* See LICENSE.qla2xxx for copyright and licensing details.
	6	*/
	7	#include "qla_def.h"
	8
	9	#include <linux/debugfs.h>
	10	#include <linux/seq_file.h>
	11
	12	static struct dentry *qla2x00_dfs_root;
	13	static atomic_t qla2x00_dfs_root_count;
	14
36c78452 QT	15	static int
	16	qla2x00_dfs_tgt_sess_show(struct seq_file s, void unused)
	17	{
	18	scsi_qla_host_t *vha = s->private;
	19	struct qla_hw_data *ha = vha->hw;
	20	unsigned long flags;
5d964837	21	struct fc_port *sess = NULL;
c423437e	22	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
36c78452	23
c423437e	24	seq_printf(s, "%s\n", vha->host_str);
36c78452	25	if (tgt) {
c423437e	26	seq_puts(s, "Port ID Port Name Handle\n");
36c78452 QT	27
36c78452 QT	28	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
5d964837	29	list_for_each_entry(sess, &vha->vp_fcports, list)
36c78452	30	seq_printf(s, "%02x:%02x:%02x %8phC %d\n",
37cacc0a QT	31	sess->d_id.b.domain, sess->d_id.b.area,
	32	sess->d_id.b.al_pa, sess->port_name,
	33	sess->loop_id);
36c78452 QT	34	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
	35	}
	36
	37	return 0;
	38	}
	39
	40	static int
	41	qla2x00_dfs_tgt_sess_open(struct inode inode, struct file file)
	42	{
	43	scsi_qla_host_t *vha = inode->i_private;
	44	return single_open(file, qla2x00_dfs_tgt_sess_show, vha);
	45	}
	46
36c78452 QT	47	static const struct file_operations dfs_tgt_sess_ops = {
	48	.open = qla2x00_dfs_tgt_sess_open,
	49	.read = seq_read,
	50	.llseek = seq_lseek,
	51	.release = single_release,
	52	};
	53
c423437e HM	54	static int
	55	qla2x00_dfs_tgt_port_database_show(struct seq_file s, void unused)
	56	{
	57	scsi_qla_host_t *vha = s->private;
	58	struct qla_hw_data *ha = vha->hw;
	59	struct gid_list_info *gid_list;
	60	dma_addr_t gid_list_dma;
	61	fc_port_t fc_port;
	62	char *id_iter;
	63	int rc, i;
	64	uint16_t entries, loop_id;
	65	struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
	66
	67	seq_printf(s, "%s\n", vha->host_str);
	68	if (tgt) {
	69	gid_list = dma_alloc_coherent(&ha->pdev->dev,
	70	qla2x00_gid_list_size(ha),
	71	&gid_list_dma, GFP_KERNEL);
	72	if (!gid_list) {
83548fe2	73	ql_dbg(ql_dbg_user, vha, 0x7018,
c423437e HM	74	"DMA allocation failed for %u\n",
	75	qla2x00_gid_list_size(ha));
	76	return 0;
	77	}
	78
	79	rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
	80	&entries);
	81	if (rc != QLA_SUCCESS)
	82	goto out_free_id_list;
	83
	84	id_iter = (char *)gid_list;
	85
	86	seq_puts(s, "Port Name Port ID Loop ID\n");
	87
	88	for (i = 0; i < entries; i++) {
	89	struct gid_list_info *gid =
	90	(struct gid_list_info *)id_iter;
	91	loop_id = le16_to_cpu(gid->loop_id);
	92	memset(&fc_port, 0, sizeof(fc_port_t));
	93
	94	fc_port.loop_id = loop_id;
	95
	96	rc = qla24xx_gpdb_wait(vha, &fc_port, 0);
	97	seq_printf(s, "%8phC %02x%02x%02x %d\n",
	98	fc_port.port_name, fc_port.d_id.b.domain,
	99	fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
	100	fc_port.loop_id);
	101	id_iter += ha->gid_list_info_size;
	102	}
	103	out_free_id_list:
	104	dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
	105	gid_list, gid_list_dma);
	106	}
	107
	108	return 0;
	109	}
	110
	111	static int
	112	qla2x00_dfs_tgt_port_database_open(struct inode inode, struct file file)
	113	{
	114	scsi_qla_host_t *vha = inode->i_private;
	115
	116	return single_open(file, qla2x00_dfs_tgt_port_database_show, vha);
	117	}
	118
	119	static const struct file_operations dfs_tgt_port_database_ops = {
	120	.open = qla2x00_dfs_tgt_port_database_open,
	121	.read = seq_read,
	122	.llseek = seq_lseek,
	123	.release = single_release,
	124	};
	125
03e8c680 QT	126	static int
	127	qla_dfs_fw_resource_cnt_show(struct seq_file s, void unused)
	128	{
	129	struct scsi_qla_host *vha = s->private;
94d83e36 QT	130	uint16_t mb[MAX_IOCB_MB_REG];
	131	int rc;
	132
	133	rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
	134	if (rc != QLA_SUCCESS) {
	135	seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
	136	} else {
	137	seq_puts(s, "FW Resource count\n\n");
	138	seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
	139	seq_printf(s, "current TGT exchg count[%d]\n", mb[2]);
	140	seq_printf(s, "original Initiator Exchange count[%d]\n", mb[3]);
	141	seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[6]);
	142	seq_printf(s, "Original IOCB count[%d]\n", mb[7]);
	143	seq_printf(s, "Current IOCB count[%d]\n", mb[10]);
	144	seq_printf(s, "MAX VP count[%d]\n", mb[11]);
	145	seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
92d71570 AG	146	seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
	147	mb[20]);
	148	seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
	149	mb[21]);
	150	seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
	151	mb[22]);
	152	seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
	153	mb[23]);
	154
94d83e36	155	}
03e8c680 QT	156
	157	return 0;
	158	}
	159
	160	static int
	161	qla_dfs_fw_resource_cnt_open(struct inode inode, struct file file)
	162	{
	163	struct scsi_qla_host *vha = inode->i_private;
	164	return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
	165	}
	166
	167	static const struct file_operations dfs_fw_resource_cnt_ops = {
	168	.open = qla_dfs_fw_resource_cnt_open,
	169	.read = seq_read,
	170	.llseek = seq_lseek,
	171	.release = single_release,
	172	};
	173
ce1025cd HM	174	static int
	175	qla_dfs_tgt_counters_show(struct seq_file s, void unused)
	176	{
	177	struct scsi_qla_host *vha = s->private;
60a9eadb QT	178	struct qla_qpair *qpair = vha->hw->base_qpair;
	179	uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
	180	core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
	181	num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
	182	u16 i;
	183
	184	qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
	185	core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
	186	qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
	187	core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
	188	qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
	189	core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
	190	num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
	191	num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
	192	num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;
	193
	194	for (i = 0; i < vha->hw->max_qpairs; i++) {
	195	qpair = vha->hw->queue_pair_map[i];
db0f166e BK	196	if (!qpair)
db0f166e BK	197	continue;
60a9eadb QT	198	qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
	199	core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
	200	qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
	201	core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
	202	qla_core_ret_sta_ctio +=
	203	qpair->tgt_counters.qla_core_ret_sta_ctio;
	204	core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
	205	num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
	206	num_alloc_iocb_failed +=
	207	qpair->tgt_counters.num_alloc_iocb_failed;
	208	num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
	209	}
ce1025cd HM	210
	211	seq_puts(s, "Target Counters\n");
	212	seq_printf(s, "qla_core_sbt_cmd = %lld\n",
60a9eadb	213	qla_core_sbt_cmd);
ce1025cd	214	seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
60a9eadb	215	qla_core_ret_sta_ctio);
ce1025cd	216	seq_printf(s, "qla_core_ret_ctio = %lld\n",
60a9eadb	217	qla_core_ret_ctio);
ce1025cd	218	seq_printf(s, "core_qla_que_buf = %lld\n",
60a9eadb	219	core_qla_que_buf);
ce1025cd	220	seq_printf(s, "core_qla_snd_status = %lld\n",
60a9eadb	221	core_qla_snd_status);
ce1025cd	222	seq_printf(s, "core_qla_free_cmd = %lld\n",
60a9eadb	223	core_qla_free_cmd);
ce1025cd	224	seq_printf(s, "num alloc iocb failed = %lld\n",
60a9eadb	225	num_alloc_iocb_failed);
ce1025cd	226	seq_printf(s, "num term exchange sent = %lld\n",
60a9eadb	227	num_term_xchg_sent);
ce1025cd	228	seq_printf(s, "num Q full sent = %lld\n",
60a9eadb	229	num_q_full_sent);
ce1025cd	230
54b9993c AG	231	/* DIF stats */
	232	seq_printf(s, "DIF Inp Bytes = %lld\n",
	233	vha->qla_stats.qla_dif_stats.dif_input_bytes);
	234	seq_printf(s, "DIF Outp Bytes = %lld\n",
	235	vha->qla_stats.qla_dif_stats.dif_output_bytes);
	236	seq_printf(s, "DIF Inp Req = %lld\n",
	237	vha->qla_stats.qla_dif_stats.dif_input_requests);
	238	seq_printf(s, "DIF Outp Req = %lld\n",
	239	vha->qla_stats.qla_dif_stats.dif_output_requests);
	240	seq_printf(s, "DIF Guard err = %d\n",
	241	vha->qla_stats.qla_dif_stats.dif_guard_err);
	242	seq_printf(s, "DIF Ref tag err = %d\n",
	243	vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
	244	seq_printf(s, "DIF App tag err = %d\n",
	245	vha->qla_stats.qla_dif_stats.dif_app_tag_err);
ce1025cd HM	246	return 0;
	247	}
	248
	249	static int
	250	qla_dfs_tgt_counters_open(struct inode inode, struct file file)
	251	{
	252	struct scsi_qla_host *vha = inode->i_private;
	253	return single_open(file, qla_dfs_tgt_counters_show, vha);
	254	}
	255
	256	static const struct file_operations dfs_tgt_counters_ops = {
	257	.open = qla_dfs_tgt_counters_open,
	258	.read = seq_read,
	259	.llseek = seq_lseek,
	260	.release = single_release,
	261	};
	262
df613b96 AV	263	static int
	264	qla2x00_dfs_fce_show(struct seq_file s, void unused)
	265	{
7b867cf7	266	scsi_qla_host_t *vha = s->private;
df613b96 AV	267	uint32_t cnt;
	268	uint32_t *fce;
	269	uint64_t fce_start;
7b867cf7	270	struct qla_hw_data *ha = vha->hw;
df613b96 AV	271
	272	mutex_lock(&ha->fce_mutex);
	273
91c40f24	274	seq_puts(s, "FCE Trace Buffer\n");
279e7f54	275	seq_printf(s, "In Pointer = %llx\n\n", (unsigned long long)ha->fce_wr);
df613b96	276	seq_printf(s, "Base = %llx\n\n", (unsigned long long) ha->fce_dma);
91c40f24	277	seq_puts(s, "FCE Enable Registers\n");
df613b96 AV	278	seq_printf(s, "%08x %08x %08x %08x %08x %08x\n",
	279	ha->fce_mb[0], ha->fce_mb[2], ha->fce_mb[3], ha->fce_mb[4],
	280	ha->fce_mb[5], ha->fce_mb[6]);
	281
	282	fce = (uint32_t *) ha->fce;
	283	fce_start = (unsigned long long) ha->fce_dma;
	284	for (cnt = 0; cnt < fce_calc_size(ha->fce_bufs) / 4; cnt++) {
	285	if (cnt % 8 == 0)
	286	seq_printf(s, "\n%llx: ",
	287	(unsigned long long)((cnt * 4) + fce_start));
	288	else
f50332ff	289	seq_putc(s, ' ');
df613b96 AV	290	seq_printf(s, "%08x", *fce++);
	291	}
	292
91c40f24	293	seq_puts(s, "\nEnd\n");
df613b96 AV	294
	295	mutex_unlock(&ha->fce_mutex);
	296
	297	return 0;
	298	}
	299
	300	static int
	301	qla2x00_dfs_fce_open(struct inode inode, struct file file)
	302	{
7b867cf7 AC	303	scsi_qla_host_t *vha = inode->i_private;
7b867cf7 AC	304	struct qla_hw_data *ha = vha->hw;
df613b96 AV	305	int rval;
	306
	307	if (!ha->flags.fce_enabled)
	308	goto out;
	309
	310	mutex_lock(&ha->fce_mutex);
	311
	312	/* Pause tracing to flush FCE buffers. */
7b867cf7	313	rval = qla2x00_disable_fce_trace(vha, &ha->fce_wr, &ha->fce_rd);
df613b96	314	if (rval)
7c3df132	315	ql_dbg(ql_dbg_user, vha, 0x705c,
df613b96 AV	316	"DebugFS: Unable to disable FCE (%d).\n", rval);
	317
	318	ha->flags.fce_enabled = 0;
	319
	320	mutex_unlock(&ha->fce_mutex);
	321	out:
94279ede	322	return single_open(file, qla2x00_dfs_fce_show, vha);
df613b96 AV	323	}
	324
	325	static int
	326	qla2x00_dfs_fce_release(struct inode inode, struct file file)
	327	{
7b867cf7 AC	328	scsi_qla_host_t *vha = inode->i_private;
7b867cf7 AC	329	struct qla_hw_data *ha = vha->hw;
df613b96 AV	330	int rval;
	331
	332	if (ha->flags.fce_enabled)
	333	goto out;
	334
	335	mutex_lock(&ha->fce_mutex);
	336
	337	/* Re-enable FCE tracing. */
	338	ha->flags.fce_enabled = 1;
	339	memset(ha->fce, 0, fce_calc_size(ha->fce_bufs));
7b867cf7	340	rval = qla2x00_enable_fce_trace(vha, ha->fce_dma, ha->fce_bufs,
df613b96 AV	341	ha->fce_mb, &ha->fce_bufs);
df613b96 AV	342	if (rval) {
7c3df132	343	ql_dbg(ql_dbg_user, vha, 0x700d,
df613b96 AV	344	"DebugFS: Unable to reinitialize FCE (%d).\n", rval);
	345	ha->flags.fce_enabled = 0;
	346	}
	347
	348	mutex_unlock(&ha->fce_mutex);
	349	out:
	350	return single_release(inode, file);
	351	}
	352
	353	static const struct file_operations dfs_fce_ops = {
	354	.open = qla2x00_dfs_fce_open,
	355	.read = seq_read,
	356	.llseek = seq_lseek,
	357	.release = qla2x00_dfs_fce_release,
	358	};
	359
09620eeb QT	360	static int
	361	qla_dfs_naqp_show(struct seq_file s, void unused)
	362	{
	363	struct scsi_qla_host *vha = s->private;
	364	struct qla_hw_data *ha = vha->hw;
	365
	366	seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
	367	return 0;
	368	}
	369
	370	static int
	371	qla_dfs_naqp_open(struct inode inode, struct file file)
	372	{
	373	struct scsi_qla_host *vha = inode->i_private;
	374
	375	return single_open(file, qla_dfs_naqp_show, vha);
	376	}
	377
	378	static ssize_t
	379	qla_dfs_naqp_write(struct file file, const char __user buffer,
	380	size_t count, loff_t *pos)
	381	{
	382	struct seq_file *s = file->private_data;
	383	struct scsi_qla_host *vha = s->private;
	384	struct qla_hw_data *ha = vha->hw;
	385	char *buf;
	386	int rc = 0;
	387	unsigned long num_act_qp;
	388
	389	if (!(IS_QLA27XX(ha) \|\| IS_QLA83XX(ha))) {
	390	pr_err("host%ld: this adapter does not support Multi Q.",
	391	vha->host_no);
	392	return -EINVAL;
	393	}
	394
	395	if (!vha->flags.qpairs_available) {
	396	pr_err("host%ld: Driver is not setup with Multi Q.",
	397	vha->host_no);
	398	return -EINVAL;
	399	}
	400	buf = memdup_user_nul(buffer, count);
	401	if (IS_ERR(buf)) {
	402	pr_err("host%ld: fail to copy user buffer.",
	403	vha->host_no);
	404	return PTR_ERR(buf);
	405	}
	406
	407	num_act_qp = simple_strtoul(buf, NULL, 0);
	408
	409	if (num_act_qp >= vha->hw->max_qpairs) {
	410	pr_err("User set invalid number of qpairs %lu. Max = %d",
	411	num_act_qp, vha->hw->max_qpairs);
	412	rc = -EINVAL;
	413	goto out_free;
	414	}
	415
	416	if (num_act_qp != ha->tgt.num_act_qpairs) {
	417	ha->tgt.num_act_qpairs = num_act_qp;
	418	qlt_clr_qp_table(vha);
	419	}
	420	rc = count;
	421	out_free:
	422	kfree(buf);
	423	return rc;
424	}
425
426	static const struct file_operations dfs_naqp_ops = {
427	.open = qla_dfs_naqp_open,
428	.read = seq_read,
429	.llseek = seq_lseek,
430	.release = single_release,
431	.write = qla_dfs_naqp_write,
432	};
433
434
df613b96	435	int
7b867cf7	436	qla2x00_dfs_setup(scsi_qla_host_t *vha)
df613b96	437	{
7b867cf7	438	struct qla_hw_data *ha = vha->hw;
3a03eb79	439
f73cb695 CD	440	if (!IS_QLA25XX(ha) && !IS_QLA81XX(ha) && !IS_QLA83XX(ha) &&
f73cb695 CD	441	!IS_QLA27XX(ha))
df613b96 AV	442	goto out;
	443	if (!ha->fce)
	444	goto out;
	445
	446	if (qla2x00_dfs_root)
	447	goto create_dir;
	448
	449	atomic_set(&qla2x00_dfs_root_count, 0);
	450	qla2x00_dfs_root = debugfs_create_dir(QLA2XXX_DRIVER_NAME, NULL);
df613b96 AV	451
	452	create_dir:
	453	if (ha->dfs_dir)
	454	goto create_nodes;
	455
	456	mutex_init(&ha->fce_mutex);
7b867cf7	457	ha->dfs_dir = debugfs_create_dir(vha->host_str, qla2x00_dfs_root);
df613b96 AV	458
	459	atomic_inc(&qla2x00_dfs_root_count);
	460
	461	create_nodes:
03e8c680 QT	462	ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
03e8c680 QT	463	S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops);
03e8c680	464
ce1025cd HM	465	ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
ce1025cd HM	466	ha->dfs_dir, vha, &dfs_tgt_counters_ops);
ce1025cd	467
c423437e HM	468	ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
c423437e HM	469	S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_port_database_ops);
c423437e	470
94279ede	471	ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
df613b96	472	&dfs_fce_ops);
36c78452 QT	473
	474	ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess",
	475	S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops);
36c78452	476
b45a3a42	477	if (IS_QLA27XX(ha) \|\| IS_QLA83XX(ha))
09620eeb QT	478	ha->tgt.dfs_naqp = debugfs_create_file("naqp",
09620eeb QT	479	0400, ha->dfs_dir, vha, &dfs_naqp_ops);
df613b96 AV	480	out:
	481	return 0;
	482	}
	483
	484	int
7b867cf7	485	qla2x00_dfs_remove(scsi_qla_host_t *vha)
df613b96	486	{
7b867cf7	487	struct qla_hw_data *ha = vha->hw;
ce1025cd	488
09620eeb QT	489	if (ha->tgt.dfs_naqp) {
	490	debugfs_remove(ha->tgt.dfs_naqp);
	491	ha->tgt.dfs_naqp = NULL;
	492	}
	493
36c78452 QT	494	if (ha->tgt.dfs_tgt_sess) {
	495	debugfs_remove(ha->tgt.dfs_tgt_sess);
	496	ha->tgt.dfs_tgt_sess = NULL;
	497	}
	498
c423437e HM	499	if (ha->tgt.dfs_tgt_port_database) {
	500	debugfs_remove(ha->tgt.dfs_tgt_port_database);
	501	ha->tgt.dfs_tgt_port_database = NULL;
	502	}
	503
03e8c680 QT	504	if (ha->dfs_fw_resource_cnt) {
	505	debugfs_remove(ha->dfs_fw_resource_cnt);
	506	ha->dfs_fw_resource_cnt = NULL;
	507	}
	508
ce1025cd HM	509	if (ha->dfs_tgt_counters) {
	510	debugfs_remove(ha->dfs_tgt_counters);
	511	ha->dfs_tgt_counters = NULL;
	512	}
	513
df613b96 AV	514	if (ha->dfs_fce) {
	515	debugfs_remove(ha->dfs_fce);
	516	ha->dfs_fce = NULL;
	517	}
	518
	519	if (ha->dfs_dir) {
	520	debugfs_remove(ha->dfs_dir);
	521	ha->dfs_dir = NULL;
	522	atomic_dec(&qla2x00_dfs_root_count);
	523	}
	524
	525	if (atomic_read(&qla2x00_dfs_root_count) == 0 &&
	526	qla2x00_dfs_root) {
	527	debugfs_remove(qla2x00_dfs_root);
	528	qla2x00_dfs_root = NULL;
	529	}
	530
	531	return 0;
	532	}