736 lines
21 KiB
C
736 lines
21 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* QLogic Fibre Channel HBA Driver
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* Copyright (c) 2003-2014 QLogic Corporation
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*/
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#include "qla_def.h"
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#include <linux/debugfs.h>
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#include <linux/seq_file.h>
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static struct dentry *qla2x00_dfs_root;
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static atomic_t qla2x00_dfs_root_count;
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#define QLA_DFS_RPORT_DEVLOSS_TMO 1
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static int
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qla_dfs_rport_get(struct fc_port *fp, int attr_id, u64 *val)
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{
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switch (attr_id) {
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case QLA_DFS_RPORT_DEVLOSS_TMO:
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/* Only supported for FC-NVMe devices that are registered. */
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if (!(fp->nvme_flag & NVME_FLAG_REGISTERED))
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return -EIO;
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*val = fp->nvme_remote_port->dev_loss_tmo;
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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static int
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qla_dfs_rport_set(struct fc_port *fp, int attr_id, u64 val)
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{
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switch (attr_id) {
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case QLA_DFS_RPORT_DEVLOSS_TMO:
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/* Only supported for FC-NVMe devices that are registered. */
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if (!(fp->nvme_flag & NVME_FLAG_REGISTERED))
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return -EIO;
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#if (IS_ENABLED(CONFIG_NVME_FC))
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return nvme_fc_set_remoteport_devloss(fp->nvme_remote_port,
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val);
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#else /* CONFIG_NVME_FC */
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return -EINVAL;
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#endif /* CONFIG_NVME_FC */
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default:
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return -EINVAL;
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}
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return 0;
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}
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#define DEFINE_QLA_DFS_RPORT_RW_ATTR(_attr_id, _attr) \
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static int qla_dfs_rport_##_attr##_get(void *data, u64 *val) \
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{ \
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struct fc_port *fp = data; \
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return qla_dfs_rport_get(fp, _attr_id, val); \
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} \
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static int qla_dfs_rport_##_attr##_set(void *data, u64 val) \
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{ \
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struct fc_port *fp = data; \
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return qla_dfs_rport_set(fp, _attr_id, val); \
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} \
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DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \
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qla_dfs_rport_##_attr##_get, \
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qla_dfs_rport_##_attr##_set, "%llu\n")
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/*
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* Wrapper for getting fc_port fields.
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*
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* _attr : Attribute name.
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* _get_val : Accessor macro to retrieve the value.
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*/
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#define DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) \
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static int qla_dfs_rport_field_##_attr##_get(void *data, u64 *val) \
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{ \
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struct fc_port *fp = data; \
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*val = _get_val; \
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return 0; \
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} \
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DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_field_##_attr##_fops, \
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qla_dfs_rport_field_##_attr##_get, \
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NULL, "%llu\n")
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#define DEFINE_QLA_DFS_RPORT_ACCESS(_attr, _get_val) \
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DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val)
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#define DEFINE_QLA_DFS_RPORT_FIELD(_attr) \
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DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, fp->_attr)
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DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo);
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DEFINE_QLA_DFS_RPORT_FIELD(disc_state);
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DEFINE_QLA_DFS_RPORT_FIELD(scan_state);
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DEFINE_QLA_DFS_RPORT_FIELD(fw_login_state);
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DEFINE_QLA_DFS_RPORT_FIELD(login_pause);
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DEFINE_QLA_DFS_RPORT_FIELD(flags);
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DEFINE_QLA_DFS_RPORT_FIELD(nvme_flag);
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DEFINE_QLA_DFS_RPORT_FIELD(last_rscn_gen);
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DEFINE_QLA_DFS_RPORT_FIELD(rscn_gen);
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DEFINE_QLA_DFS_RPORT_FIELD(login_gen);
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DEFINE_QLA_DFS_RPORT_FIELD(loop_id);
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DEFINE_QLA_DFS_RPORT_FIELD_GET(port_id, fp->d_id.b24);
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DEFINE_QLA_DFS_RPORT_FIELD_GET(sess_kref, kref_read(&fp->sess_kref));
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void
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qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp)
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{
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char wwn[32];
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#define QLA_CREATE_RPORT_FIELD_ATTR(_attr) \
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debugfs_create_file(#_attr, 0400, fp->dfs_rport_dir, \
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fp, &qla_dfs_rport_field_##_attr##_fops)
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if (!vha->dfs_rport_root || fp->dfs_rport_dir)
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return;
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sprintf(wwn, "pn-%016llx", wwn_to_u64(fp->port_name));
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fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root);
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if (IS_ERR(fp->dfs_rport_dir))
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return;
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if (NVME_TARGET(vha->hw, fp))
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debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir,
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fp, &qla_dfs_rport_dev_loss_tmo_fops);
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QLA_CREATE_RPORT_FIELD_ATTR(disc_state);
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QLA_CREATE_RPORT_FIELD_ATTR(scan_state);
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QLA_CREATE_RPORT_FIELD_ATTR(fw_login_state);
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QLA_CREATE_RPORT_FIELD_ATTR(login_pause);
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QLA_CREATE_RPORT_FIELD_ATTR(flags);
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QLA_CREATE_RPORT_FIELD_ATTR(nvme_flag);
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QLA_CREATE_RPORT_FIELD_ATTR(last_rscn_gen);
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QLA_CREATE_RPORT_FIELD_ATTR(rscn_gen);
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QLA_CREATE_RPORT_FIELD_ATTR(login_gen);
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QLA_CREATE_RPORT_FIELD_ATTR(loop_id);
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QLA_CREATE_RPORT_FIELD_ATTR(port_id);
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QLA_CREATE_RPORT_FIELD_ATTR(sess_kref);
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}
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void
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qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp)
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{
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if (!vha->dfs_rport_root || !fp->dfs_rport_dir)
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return;
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debugfs_remove_recursive(fp->dfs_rport_dir);
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fp->dfs_rport_dir = NULL;
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}
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static int
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qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused)
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{
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scsi_qla_host_t *vha = s->private;
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struct qla_hw_data *ha = vha->hw;
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unsigned long flags;
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struct fc_port *sess = NULL;
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struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
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seq_printf(s, "%s\n", vha->host_str);
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if (tgt) {
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seq_puts(s, "Port ID Port Name Handle\n");
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spin_lock_irqsave(&ha->tgt.sess_lock, flags);
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list_for_each_entry(sess, &vha->vp_fcports, list)
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seq_printf(s, "%02x:%02x:%02x %8phC %d\n",
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sess->d_id.b.domain, sess->d_id.b.area,
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sess->d_id.b.al_pa, sess->port_name,
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sess->loop_id);
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spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
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}
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_sess);
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static int
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qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused)
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{
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scsi_qla_host_t *vha = s->private;
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struct qla_hw_data *ha = vha->hw;
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struct gid_list_info *gid_list;
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dma_addr_t gid_list_dma;
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fc_port_t fc_port;
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char *id_iter;
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int rc, i;
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uint16_t entries, loop_id;
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seq_printf(s, "%s\n", vha->host_str);
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gid_list = dma_alloc_coherent(&ha->pdev->dev,
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qla2x00_gid_list_size(ha),
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&gid_list_dma, GFP_KERNEL);
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if (!gid_list) {
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ql_dbg(ql_dbg_user, vha, 0x7018,
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"DMA allocation failed for %u\n",
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qla2x00_gid_list_size(ha));
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return 0;
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}
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rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma,
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&entries);
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if (rc != QLA_SUCCESS)
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goto out_free_id_list;
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id_iter = (char *)gid_list;
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seq_puts(s, "Port Name Port ID Loop ID\n");
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for (i = 0; i < entries; i++) {
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struct gid_list_info *gid =
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(struct gid_list_info *)id_iter;
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loop_id = le16_to_cpu(gid->loop_id);
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memset(&fc_port, 0, sizeof(fc_port_t));
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fc_port.loop_id = loop_id;
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rc = qla24xx_gpdb_wait(vha, &fc_port, 0);
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seq_printf(s, "%8phC %02x%02x%02x %d\n",
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fc_port.port_name, fc_port.d_id.b.domain,
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fc_port.d_id.b.area, fc_port.d_id.b.al_pa,
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fc_port.loop_id);
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id_iter += ha->gid_list_info_size;
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}
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out_free_id_list:
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dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha),
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gid_list, gid_list_dma);
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_port_database);
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static int
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qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
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{
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struct scsi_qla_host *vha = s->private;
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uint16_t mb[MAX_IOCB_MB_REG];
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int rc;
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struct qla_hw_data *ha = vha->hw;
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u16 iocbs_used, i, exch_used;
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rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG);
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if (rc != QLA_SUCCESS) {
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seq_printf(s, "Mailbox Command failed %d, mb %#x", rc, mb[0]);
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} else {
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seq_puts(s, "FW Resource count\n\n");
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seq_printf(s, "Original TGT exchg count[%d]\n", mb[1]);
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seq_printf(s, "Current TGT exchg count[%d]\n", mb[2]);
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seq_printf(s, "Current Initiator Exchange count[%d]\n", mb[3]);
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seq_printf(s, "Original Initiator Exchange count[%d]\n", mb[6]);
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seq_printf(s, "Current IOCB count[%d]\n", mb[7]);
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seq_printf(s, "Original IOCB count[%d]\n", mb[10]);
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seq_printf(s, "MAX VP count[%d]\n", mb[11]);
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seq_printf(s, "MAX FCF count[%d]\n", mb[12]);
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seq_printf(s, "Current free pageable XCB buffer cnt[%d]\n",
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mb[20]);
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seq_printf(s, "Original Initiator fast XCB buffer cnt[%d]\n",
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mb[21]);
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seq_printf(s, "Current free Initiator fast XCB buffer cnt[%d]\n",
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mb[22]);
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seq_printf(s, "Original Target fast XCB buffer cnt[%d]\n",
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mb[23]);
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}
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if (ql2xenforce_iocb_limit) {
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/* lock is not require. It's an estimate. */
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iocbs_used = ha->base_qpair->fwres.iocbs_used;
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exch_used = ha->base_qpair->fwres.exch_used;
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for (i = 0; i < ha->max_qpairs; i++) {
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if (ha->queue_pair_map[i]) {
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iocbs_used += ha->queue_pair_map[i]->fwres.iocbs_used;
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exch_used += ha->queue_pair_map[i]->fwres.exch_used;
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}
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}
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seq_printf(s, "Driver: estimate iocb used [%d] high water limit [%d]\n",
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iocbs_used, ha->base_qpair->fwres.iocbs_limit);
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seq_printf(s, "estimate exchange used[%d] high water limit [%d] n",
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exch_used, ha->base_qpair->fwres.exch_limit);
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if (ql2xenforce_iocb_limit == 2) {
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iocbs_used = atomic_read(&ha->fwres.iocb_used);
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exch_used = atomic_read(&ha->fwres.exch_used);
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seq_printf(s, " estimate iocb2 used [%d] high water limit [%d]\n",
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iocbs_used, ha->fwres.iocb_limit);
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seq_printf(s, " estimate exchange2 used[%d] high water limit [%d] \n",
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exch_used, ha->fwres.exch_limit);
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}
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}
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return 0;
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}
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DEFINE_SHOW_ATTRIBUTE(qla_dfs_fw_resource_cnt);
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static int
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qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
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{
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struct scsi_qla_host *vha = s->private;
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struct qla_qpair *qpair = vha->hw->base_qpair;
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uint64_t qla_core_sbt_cmd, core_qla_que_buf, qla_core_ret_ctio,
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core_qla_snd_status, qla_core_ret_sta_ctio, core_qla_free_cmd,
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num_q_full_sent, num_alloc_iocb_failed, num_term_xchg_sent;
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u16 i;
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fc_port_t *fcport = NULL;
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if (qla2x00_chip_is_down(vha))
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return 0;
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qla_core_sbt_cmd = qpair->tgt_counters.qla_core_sbt_cmd;
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core_qla_que_buf = qpair->tgt_counters.core_qla_que_buf;
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qla_core_ret_ctio = qpair->tgt_counters.qla_core_ret_ctio;
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core_qla_snd_status = qpair->tgt_counters.core_qla_snd_status;
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qla_core_ret_sta_ctio = qpair->tgt_counters.qla_core_ret_sta_ctio;
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core_qla_free_cmd = qpair->tgt_counters.core_qla_free_cmd;
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num_q_full_sent = qpair->tgt_counters.num_q_full_sent;
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num_alloc_iocb_failed = qpair->tgt_counters.num_alloc_iocb_failed;
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num_term_xchg_sent = qpair->tgt_counters.num_term_xchg_sent;
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for (i = 0; i < vha->hw->max_qpairs; i++) {
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qpair = vha->hw->queue_pair_map[i];
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if (!qpair)
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continue;
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qla_core_sbt_cmd += qpair->tgt_counters.qla_core_sbt_cmd;
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core_qla_que_buf += qpair->tgt_counters.core_qla_que_buf;
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qla_core_ret_ctio += qpair->tgt_counters.qla_core_ret_ctio;
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core_qla_snd_status += qpair->tgt_counters.core_qla_snd_status;
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qla_core_ret_sta_ctio +=
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qpair->tgt_counters.qla_core_ret_sta_ctio;
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core_qla_free_cmd += qpair->tgt_counters.core_qla_free_cmd;
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num_q_full_sent += qpair->tgt_counters.num_q_full_sent;
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num_alloc_iocb_failed +=
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qpair->tgt_counters.num_alloc_iocb_failed;
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num_term_xchg_sent += qpair->tgt_counters.num_term_xchg_sent;
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}
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seq_puts(s, "Target Counters\n");
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seq_printf(s, "qla_core_sbt_cmd = %lld\n",
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qla_core_sbt_cmd);
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seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
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qla_core_ret_sta_ctio);
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seq_printf(s, "qla_core_ret_ctio = %lld\n",
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qla_core_ret_ctio);
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seq_printf(s, "core_qla_que_buf = %lld\n",
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core_qla_que_buf);
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seq_printf(s, "core_qla_snd_status = %lld\n",
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core_qla_snd_status);
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seq_printf(s, "core_qla_free_cmd = %lld\n",
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core_qla_free_cmd);
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seq_printf(s, "num alloc iocb failed = %lld\n",
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num_alloc_iocb_failed);
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seq_printf(s, "num term exchange sent = %lld\n",
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num_term_xchg_sent);
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seq_printf(s, "num Q full sent = %lld\n",
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num_q_full_sent);
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/* DIF stats */
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seq_printf(s, "DIF Inp Bytes = %lld\n",
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vha->qla_stats.qla_dif_stats.dif_input_bytes);
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seq_printf(s, "DIF Outp Bytes = %lld\n",
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vha->qla_stats.qla_dif_stats.dif_output_bytes);
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seq_printf(s, "DIF Inp Req = %lld\n",
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vha->qla_stats.qla_dif_stats.dif_input_requests);
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seq_printf(s, "DIF Outp Req = %lld\n",
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vha->qla_stats.qla_dif_stats.dif_output_requests);
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seq_printf(s, "DIF Guard err = %d\n",
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vha->qla_stats.qla_dif_stats.dif_guard_err);
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seq_printf(s, "DIF Ref tag err = %d\n",
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vha->qla_stats.qla_dif_stats.dif_ref_tag_err);
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seq_printf(s, "DIF App tag err = %d\n",
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vha->qla_stats.qla_dif_stats.dif_app_tag_err);
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seq_puts(s, "\n");
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seq_puts(s, "Initiator Error Counters\n");
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seq_printf(s, "HW Error Count = %14lld\n",
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vha->hw_err_cnt);
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seq_printf(s, "Link Down Count = %14lld\n",
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vha->short_link_down_cnt);
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seq_printf(s, "Interface Err Count = %14lld\n",
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vha->interface_err_cnt);
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seq_printf(s, "Cmd Timeout Count = %14lld\n",
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vha->cmd_timeout_cnt);
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seq_printf(s, "Reset Count = %14lld\n",
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vha->reset_cmd_err_cnt);
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seq_puts(s, "\n");
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list_for_each_entry(fcport, &vha->vp_fcports, list) {
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if (!fcport->rport)
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continue;
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seq_printf(s, "Target Num = %7d Link Down Count = %14lld\n",
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fcport->rport->number, fcport->tgt_short_link_down_cnt);
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}
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seq_puts(s, "\n");
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|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SHOW_ATTRIBUTE(qla_dfs_tgt_counters);
|
|
|
|
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;
|
|
}
|
|
|
|
/*
|
|
* Helper macros for setting up debugfs entries.
|
|
* _name: The name of the debugfs entry
|
|
* _ctx_struct: The context that was passed when creating the debugfs file
|
|
*
|
|
* QLA_DFS_SETUP_RD could be used when there is only a show function.
|
|
* - show function take the name qla_dfs_<sysfs-name>_show
|
|
*
|
|
* QLA_DFS_SETUP_RW could be used when there are both show and write functions.
|
|
* - show function take the name qla_dfs_<sysfs-name>_show
|
|
* - write function take the name qla_dfs_<sysfs-name>_write
|
|
*
|
|
* To have a new debugfs entry, do:
|
|
* 1. Create a "struct dentry *" in the appropriate structure in the format
|
|
* dfs_<sysfs-name>
|
|
* 2. Setup debugfs entries using QLA_DFS_SETUP_RD / QLA_DFS_SETUP_RW
|
|
* 3. Create debugfs file in qla2x00_dfs_setup() using QLA_DFS_CREATE_FILE
|
|
* or QLA_DFS_ROOT_CREATE_FILE
|
|
* 4. Remove debugfs file in qla2x00_dfs_remove() using QLA_DFS_REMOVE_FILE
|
|
* or QLA_DFS_ROOT_REMOVE_FILE
|
|
*
|
|
* Example for creating "TEST" sysfs file:
|
|
* 1. struct qla_hw_data { ... struct dentry *dfs_TEST; }
|
|
* 2. QLA_DFS_SETUP_RD(TEST);
|
|
* 3. In qla2x00_dfs_setup():
|
|
* QLA_DFS_CREATE_FILE(ha, TEST, 0600, ha->dfs_dir, vha);
|
|
* 4. In qla2x00_dfs_remove():
|
|
* QLA_DFS_REMOVE_FILE(ha, TEST);
|
|
*/
|
|
#define QLA_DFS_SETUP_RD(_name) DEFINE_SHOW_ATTRIBUTE(qla_dfs_##_name)
|
|
|
|
#define QLA_DFS_SETUP_RW(_name) DEFINE_SHOW_STORE_ATTRIBUTE(qla_dfs_##_name)
|
|
|
|
#define QLA_DFS_ROOT_CREATE_FILE(_name, _perm, _ctx) \
|
|
do { \
|
|
if (!qla_dfs_##_name) \
|
|
qla_dfs_##_name = debugfs_create_file(#_name, \
|
|
_perm, qla2x00_dfs_root, _ctx, \
|
|
&qla_dfs_##_name##_fops); \
|
|
} while (0)
|
|
|
|
#define QLA_DFS_ROOT_REMOVE_FILE(_name) \
|
|
do { \
|
|
if (qla_dfs_##_name) { \
|
|
debugfs_remove(qla_dfs_##_name); \
|
|
qla_dfs_##_name = NULL; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define QLA_DFS_CREATE_FILE(_struct, _name, _perm, _parent, _ctx) \
|
|
do { \
|
|
(_struct)->dfs_##_name = debugfs_create_file(#_name, \
|
|
_perm, _parent, _ctx, \
|
|
&qla_dfs_##_name##_fops) \
|
|
} while (0)
|
|
|
|
#define QLA_DFS_REMOVE_FILE(_struct, _name) \
|
|
do { \
|
|
if ((_struct)->dfs_##_name) { \
|
|
debugfs_remove((_struct)->dfs_##_name); \
|
|
(_struct)->dfs_##_name = NULL; \
|
|
} \
|
|
} while (0)
|
|
|
|
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) || IS_QLA28XX(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;
|
|
}
|
|
QLA_DFS_SETUP_RW(naqp);
|
|
|
|
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) && !IS_QLA28XX(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, &qla_dfs_fw_resource_cnt_fops);
|
|
|
|
ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
|
|
ha->dfs_dir, vha, &qla_dfs_tgt_counters_fops);
|
|
|
|
ha->tgt.dfs_tgt_port_database = debugfs_create_file("tgt_port_database",
|
|
S_IRUSR, ha->dfs_dir, vha, &qla2x00_dfs_tgt_port_database_fops);
|
|
|
|
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, &qla2x00_dfs_tgt_sess_fops);
|
|
|
|
if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) {
|
|
ha->tgt.dfs_naqp = debugfs_create_file("naqp",
|
|
0400, ha->dfs_dir, vha, &qla_dfs_naqp_fops);
|
|
if (IS_ERR(ha->tgt.dfs_naqp)) {
|
|
ql_log(ql_log_warn, vha, 0xd011,
|
|
"Unable to create debugFS naqp node.\n");
|
|
goto out;
|
|
}
|
|
}
|
|
vha->dfs_rport_root = debugfs_create_dir("rports", ha->dfs_dir);
|
|
if (IS_ERR(vha->dfs_rport_root)) {
|
|
ql_log(ql_log_warn, vha, 0xd012,
|
|
"Unable to create debugFS rports 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_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 (vha->dfs_rport_root) {
|
|
debugfs_remove_recursive(vha->dfs_rport_root);
|
|
vha->dfs_rport_root = 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;
|
|
}
|