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scsi: qla2xxx: Setup debugfs entries for remote ports

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Create a base for adding remote port related entries in debugfs.

Link: https://lore.kernel.org/r/20200904045128.23631-3-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Arun Easi 2020-09-03 21:51:17 -07:00 committed by Martin K. Petersen
parent dd8d0bf6fb
commit 1e98fb0f92
5 changed files with 51 additions and 1 deletions
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4
drivers/scsi/qla2xxx/qla_def.h
View File

@ -2544,6 +2544,8 @@ typedef struct fc_port {
u8 last_login_state;
u16 n2n_link_reset_cnt;
u16 n2n_chip_reset;
struct dentry *dfs_rport_dir;
} fc_port_t;
enum {
@ -4780,6 +4782,8 @@ typedef struct scsi_qla_host {
uint16_t ql2xexchoffld;
uint16_t ql2xiniexchg;
struct dentry *dfs_rport_root;
struct purex_list {
struct list_head head;
spinlock_t lock;

42
drivers/scsi/qla2xxx/qla_dfs.c
View File

@ -12,6 +12,29 @@
static struct dentry *qla2x00_dfs_root;
static atomic_t qla2x00_dfs_root_count;
void
qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp)
{
char wwn[32];
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 (!fp->dfs_rport_dir)
return;
}
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)
{
@ -473,9 +496,21 @@ create_nodes:
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) || IS_QLA28XX(ha))
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 (!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 (!vha->dfs_rport_root) {
ql_log(ql_log_warn, vha, 0xd012,
"Unable to create debugFS rports node.\n");
goto out;
}
out:
return 0;
}
@ -515,6 +550,11 @@ qla2x00_dfs_remove(scsi_qla_host_t *vha)
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;

2
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -935,6 +935,8 @@ void qlt_clr_qp_table(struct scsi_qla_host *vha);
void qlt_set_mode(struct scsi_qla_host *);
int qla2x00_set_data_rate(scsi_qla_host_t *vha, uint16_t mode);
extern void qla24xx_process_purex_list(struct purex_list *);
extern void qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp);
extern void qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp);
/* nvme.c */
void qla_nvme_unregister_remote_port(struct fc_port *fcport);

2
drivers/scsi/qla2xxx/qla_init.c
View File

@ -5496,6 +5496,8 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport)
qla2x00_iidma_fcport(vha, fcport);
qla2x00_dfs_create_rport(vha, fcport);
if (NVME_TARGET(vha->hw, fcport)) {
qla_nvme_register_remote(vha, fcport);
qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE);

2
drivers/scsi/qla2xxx/qla_target.c
View File

@ -1111,6 +1111,8 @@ void qlt_free_session_done(struct work_struct *work)
spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
sess->free_pending = 0;
qla2x00_dfs_remove_rport(vha, sess);
ql_dbg(ql_dbg_disc, vha, 0xf001,
"Unregistration of sess %p %8phC finished fcp_cnt %d\n",
sess, sess->port_name, vha->fcport_count);