diff options
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_dfs.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 3c4b9b549b17..616ce891818d 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -12,6 +12,61 @@ 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") + +DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo); + void qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) { @@ -24,6 +79,9 @@ qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root); if (!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); } void |