Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit c423437e authored by Himanshu Madhani's avatar Himanshu Madhani Committed by Nicholas Bellinger
Browse files

qla2xxx: Add DebugFS node to display Port Database 



Signed-off-by: default avatarHimanshu Madhani <himanshu.madhani@cavium.com>
Signed-off-by: default avatarGiridhar Malavali <giridhar.malavali@cavium.com>
Signed-off-by: default avatarNicholas Bellinger <nab@linux-iscsi.org>
parent 15f30a57

drivers/scsi/qla2xxx/qla_def.h

+2 −0
Original line number Diff line number Diff line
@@ -3300,6 +3300,8 @@ struct qlt_hw_data { 
	uint8_t tgt_node_name[WWN_SIZE];



	struct dentry *dfs_tgt_sess;

	struct dentry *dfs_tgt_port_database;



	struct list_head q_full_list;

	uint32_t num_pend_cmds;

	uint32_t num_qfull_cmds_alloc;

drivers/scsi/qla2xxx/qla_dfs.c

+88 −4
Original line number Diff line number Diff line
@@ -23,7 +23,7 @@ qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused) 


	seq_printf(s, "%s\n", vha->host_str);

	if (tgt) {

		seq_printf(s, "Port ID   Port Name                Handle\n");

		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)
@@ -44,7 +44,6 @@ qla2x00_dfs_tgt_sess_open(struct inode *inode, struct file *file) 
	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,
@@ -52,6 +51,78 @@ static const struct file_operations dfs_tgt_sess_ops = { 
	.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, 0x705c,

			    "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)

{
@@ -296,6 +367,14 @@ qla2x00_dfs_setup(scsi_qla_host_t *vha) 
		goto out;

	}



	ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",

	    S_IRUSR,  ha->dfs_dir, vha, &dfs_tgt_port_database_ops);

	if (!ha->tgt.dfs_tgt_port_database) {

		ql_log(ql_log_warn, vha, 0xffff,

		    "Unable to create debugFS tgt_port_database node.\n");

		goto out;

	}



	ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,

	    &dfs_fce_ops);

	if (!ha->dfs_fce) {
@@ -326,6 +405,11 @@ qla2x00_dfs_remove(scsi_qla_host_t *vha) 
		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;