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- // SPDX-License-Identifier: GPL-2.0-only
- /*
- * QLogic Fibre Channel HBA Driver
- * Copyright (c) 2003-2014 QLogic Corporation
- */
- #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;
- #define QLA_DFS_RPORT_DEVLOSS_TMO 1
- static int
- qla_dfs_rport_get(struct fc_port *fp, int attr_id, u64 *val)
- {
- switch (attr_id) {
- case QLA_DFS_RPORT_DEVLOSS_TMO:
- /* Only supported for FC-NVMe devices that are registered. */
- if (!(fp->nvme_flag & NVME_FLAG_REGISTERED))
- return -EIO;
- *val = fp->nvme_remote_port->dev_loss_tmo;
- break;
- default:
- return -EINVAL;
- }
- return 0;
- }
- static int
- qla_dfs_rport_set(struct fc_port *fp, int attr_id, u64 val)
- {
- switch (attr_id) {
- case QLA_DFS_RPORT_DEVLOSS_TMO:
- /* Only supported for FC-NVMe devices that are registered. */
- if (!(fp->nvme_flag & NVME_FLAG_REGISTERED))
- return -EIO;
- #if (IS_ENABLED(CONFIG_NVME_FC))
- return nvme_fc_set_remoteport_devloss(fp->nvme_remote_port,
- val);
- #else /* CONFIG_NVME_FC */
- return -EINVAL;
- #endif /* CONFIG_NVME_FC */
- default:
- return -EINVAL;
- }
- return 0;
- }
- #define DEFINE_QLA_DFS_RPORT_RW_ATTR(_attr_id, _attr) \
- static int qla_dfs_rport_##_attr##_get(void *data, u64 *val) \
- { \
- struct fc_port *fp = data; \
- return qla_dfs_rport_get(fp, _attr_id, val); \
- } \
- static int qla_dfs_rport_##_attr##_set(void *data, u64 val) \
- { \
- struct fc_port *fp = data; \
- return qla_dfs_rport_set(fp, _attr_id, val); \
- } \
- DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \
- qla_dfs_rport_##_attr##_get, \
- qla_dfs_rport_##_attr##_set, "%llu\n")
- /*
- * Wrapper for getting fc_port fields.
- *
- * _attr : Attribute name.
- * _get_val : Accessor macro to retrieve the value.
- */
- #define DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) \
- static int qla_dfs_rport_field_##_attr##_get(void *data, u64 *val) \
- { \
- struct fc_port *fp = data; \
- *val = _get_val; \
- return 0; \
- } \
- DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_field_##_attr##_fops, \
- qla_dfs_rport_field_##_attr##_get, \
- NULL, "%llu\n")
- #define DEFINE_QLA_DFS_RPORT_ACCESS(_attr, _get_val) \
- DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val)
- #define DEFINE_QLA_DFS_RPORT_FIELD(_attr) \
- DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, fp->_attr)
- DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo);
- DEFINE_QLA_DFS_RPORT_FIELD(disc_state);
- DEFINE_QLA_DFS_RPORT_FIELD(scan_state);
- DEFINE_QLA_DFS_RPORT_FIELD(fw_login_state);
- DEFINE_QLA_DFS_RPORT_FIELD(login_pause);
- DEFINE_QLA_DFS_RPORT_FIELD(flags);
- DEFINE_QLA_DFS_RPORT_FIELD(nvme_flag);
- DEFINE_QLA_DFS_RPORT_FIELD(last_rscn_gen);
- DEFINE_QLA_DFS_RPORT_FIELD(rscn_gen);
- DEFINE_QLA_DFS_RPORT_FIELD(login_gen);
- DEFINE_QLA_DFS_RPORT_FIELD(loop_id);
- DEFINE_QLA_DFS_RPORT_FIELD_GET(port_id, fp->d_id.b24);
- DEFINE_QLA_DFS_RPORT_FIELD_GET(sess_kref, kref_read(&fp->sess_kref));
- void
- qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp)
- {
- char wwn[32];
- #define QLA_CREATE_RPORT_FIELD_ATTR(_attr) \
- debugfs_create_file(#_attr, 0400, fp->dfs_rport_dir, \
- fp, &qla_dfs_rport_field_##_attr##_fops)
- if (!vha->dfs_rport_root || fp->dfs_rport_dir)
- return;
- sprintf(wwn, "pn-%016llx", wwn_to_u64(fp->port_name));
- fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root);
- if (IS_ERR(fp->dfs_rport_dir))
- return;
- if (NVME_TARGET(vha->hw, fp))
- debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir,
- fp, &qla_dfs_rport_dev_loss_tmo_fops);
- QLA_CREATE_RPORT_FIELD_ATTR(disc_state);
- QLA_CREATE_RPORT_FIELD_ATTR(scan_state);
- QLA_CREATE_RPORT_FIELD_ATTR(fw_login_state);
- QLA_CREATE_RPORT_FIELD_ATTR(login_pause);
- QLA_CREATE_RPORT_FIELD_ATTR(flags);
- QLA_CREATE_RPORT_FIELD_ATTR(nvme_flag);
- QLA_CREATE_RPORT_FIELD_ATTR(last_rscn_gen);
- QLA_CREATE_RPORT_FIELD_ATTR(rscn_gen);
- QLA_CREATE_RPORT_FIELD_ATTR(login_gen);
- QLA_CREATE_RPORT_FIELD_ATTR(loop_id);
- QLA_CREATE_RPORT_FIELD_ATTR(port_id);
- QLA_CREATE_RPORT_FIELD_ATTR(sess_kref);
- }
- void
- qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp)
- {
- if (!vha->dfs_rport_root || !fp->dfs_rport_dir)
- return;
- debugfs_remove_recursive(fp->dfs_rport_dir);
- fp->dfs_rport_dir = NULL;
- }
- 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;
- }
- DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_sess);
- 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;
- seq_printf(s, "%s\n", vha->host_str);
- 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;
- }
- DEFINE_SHOW_ATTRIBUTE(qla2x00_dfs_tgt_port_database);
- 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;
- struct qla_hw_data *ha = vha->hw;
- u16 iocbs_used, i, exch_used;
- 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, "Current Initiator Exchange count[%d]\n", mb[3]);
- seq_printf(s, "Original Initiator Exchange count[%d]\n", mb[6]);
- seq_printf(s, "Current IOCB count[%d]\n", mb[7]);
- seq_printf(s, "Original 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]);
- }
- if (ql2xenforce_iocb_limit) {
- /* lock is not require. It's an estimate. */
- iocbs_used = ha->base_qpair->fwres.iocbs_used;
- exch_used = ha->base_qpair->fwres.exch_used;
- for (i = 0; i < ha->max_qpairs; i++) {
- if (ha->queue_pair_map[i]) {
- iocbs_used += ha->queue_pair_map[i]->fwres.iocbs_used;
- exch_used += ha->queue_pair_map[i]->fwres.exch_used;
- }
- }
- seq_printf(s, "Driver: estimate iocb used [%d] high water limit [%d]\n",
- iocbs_used, ha->base_qpair->fwres.iocbs_limit);
- seq_printf(s, "estimate exchange used[%d] high water limit [%d] n",
- exch_used, ha->base_qpair->fwres.exch_limit);
- if (ql2xenforce_iocb_limit == 2) {
- iocbs_used = atomic_read(&ha->fwres.iocb_used);
- exch_used = atomic_read(&ha->fwres.exch_used);
- seq_printf(s, " estimate iocb2 used [%d] high water limit [%d]\n",
- iocbs_used, ha->fwres.iocb_limit);
- seq_printf(s, " estimate exchange2 used[%d] high water limit [%d] \n",
- exch_used, ha->fwres.exch_limit);
- }
- }
- return 0;
- }
- DEFINE_SHOW_ATTRIBUTE(qla_dfs_fw_resource_cnt);
- 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;
- fc_port_t *fcport = NULL;
- if (qla2x00_chip_is_down(vha))
- return 0;
- 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);
- seq_puts(s, "\n");
- seq_puts(s, "Initiator Error Counters\n");
- seq_printf(s, "HW Error Count = %14lld\n",
- vha->hw_err_cnt);
- seq_printf(s, "Link Down Count = %14lld\n",
- vha->short_link_down_cnt);
- seq_printf(s, "Interface Err Count = %14lld\n",
- vha->interface_err_cnt);
- seq_printf(s, "Cmd Timeout Count = %14lld\n",
- vha->cmd_timeout_cnt);
- seq_printf(s, "Reset Count = %14lld\n",
- vha->reset_cmd_err_cnt);
- seq_puts(s, "\n");
- list_for_each_entry(fcport, &vha->vp_fcports, list) {
- if (!fcport->rport)
- continue;
- seq_printf(s, "Target Num = %7d Link Down Count = %14lld\n",
- fcport->rport->number, fcport->tgt_short_link_down_cnt);
- }
- seq_puts(s, "\n");
- 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, scsi_qla_host_t);
- * 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, _ctx_struct) \
- static int \
- qla_dfs_##_name##_open(struct inode *inode, struct file *file) \
- { \
- _ctx_struct *__ctx = inode->i_private; \
- \
- return single_open(file, qla_dfs_##_name##_show, __ctx); \
- } \
- \
- static const struct file_operations qla_dfs_##_name##_ops = { \
- .open = qla_dfs_##_name##_open, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
- };
- #define QLA_DFS_SETUP_RW(_name, _ctx_struct) \
- static int \
- qla_dfs_##_name##_open(struct inode *inode, struct file *file) \
- { \
- _ctx_struct *__ctx = inode->i_private; \
- \
- return single_open(file, qla_dfs_##_name##_show, __ctx); \
- } \
- \
- static const struct file_operations qla_dfs_##_name##_ops = { \
- .open = qla_dfs_##_name##_open, \
- .read = seq_read, \
- .llseek = seq_lseek, \
- .release = single_release, \
- .write = qla_dfs_##_name##_write, \
- };
- #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##_ops); \
- } 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##_ops) \
- } 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 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) || 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;
- }
- 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) && !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, &dfs_naqp_ops);
- 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;
- }
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