From e15f2e2dff5b809dce923839f21362d6b0d06b1e Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Thu, 24 Oct 2019 22:08:17 +0800 Subject: scsi: hisi_sas: Add debugfs file structure for IOST Create a file structure which was used to save the memory address for IOST at debugfs. This structure is bound to the corresponding debugfs file, it can help callback function of debugfs file to get what it needs. Link: https://lore.kernel.org/r/1571926105-74636-11-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas.h | 6 +++++- drivers/scsi/hisi_sas/hisi_sas_main.c | 21 +++++++++++---------- 2 files changed, 16 insertions(+), 11 deletions(-) (limited to 'drivers/scsi/hisi_sas') diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index af5f836e5807..c4bcaa5aff8a 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -343,6 +343,10 @@ struct hisi_sas_debugfs_port { u32 *data; }; +struct hisi_sas_debugfs_iost { + struct hisi_sas_iost *iost; +}; + struct hisi_hba { /* This must be the first element, used by SHOST_TO_SAS_HA */ struct sas_ha_struct *p; @@ -428,7 +432,7 @@ struct hisi_hba { struct hisi_sas_debugfs_port debugfs_port_reg[HISI_SAS_MAX_PHYS]; struct hisi_sas_debugfs_cq debugfs_cq[HISI_SAS_MAX_QUEUES]; struct hisi_sas_debugfs_dq debugfs_dq[HISI_SAS_MAX_QUEUES]; - struct hisi_sas_iost *debugfs_iost; + struct hisi_sas_debugfs_iost debugfs_iost; struct hisi_sas_itct *debugfs_itct; u64 *debugfs_iost_cache; u64 debugfs_timestamp; diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index e28aa3d517da..55191056f37f 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -2801,7 +2801,7 @@ static void hisi_sas_debugfs_snapshot_iost_reg(struct hisi_hba *hisi_hba) { int max_command_entries = HISI_SAS_MAX_COMMANDS; void *cachebuf = hisi_hba->debugfs_iost_cache; - void *databuf = hisi_hba->debugfs_iost; + void *databuf = hisi_hba->debugfs_iost.iost; struct hisi_sas_iost *iost; int i; @@ -3060,14 +3060,14 @@ static const struct file_operations hisi_sas_debugfs_dq_fops = { static int hisi_sas_debugfs_iost_show(struct seq_file *s, void *p) { - struct hisi_hba *hisi_hba = s->private; - struct hisi_sas_iost *debugfs_iost = hisi_hba->debugfs_iost; + struct hisi_sas_debugfs_iost *debugfs_iost = s->private; + struct hisi_sas_iost *iost = debugfs_iost->iost; int i, max_command_entries = HISI_SAS_MAX_COMMANDS; - for (i = 0; i < max_command_entries; i++, debugfs_iost++) { - __le64 *iost = &debugfs_iost->qw0; + for (i = 0; i < max_command_entries; i++, iost++) { + __le64 *data = &iost->qw0; - hisi_sas_show_row_64(s, i, sizeof(*debugfs_iost), iost); + hisi_sas_show_row_64(s, i, sizeof(*iost), data); } return 0; @@ -3246,7 +3246,8 @@ static void hisi_sas_debugfs_create_files(struct hisi_hba *hisi_hba) &hisi_sas_debugfs_dq_fops); } - debugfs_create_file("iost", 0400, dump_dentry, hisi_hba, + debugfs_create_file("iost", 0400, dump_dentry, + &hisi_hba->debugfs_iost, &hisi_sas_debugfs_iost_fops); debugfs_create_file("iost_cache", 0400, dump_dentry, hisi_hba, @@ -3716,7 +3717,7 @@ static void hisi_sas_debugfs_release(struct hisi_hba *hisi_hba) devm_kfree(dev, hisi_hba->debugfs_iost_cache); devm_kfree(dev, hisi_hba->debugfs_itct_cache); - devm_kfree(dev, hisi_hba->debugfs_iost); + devm_kfree(dev, hisi_hba->debugfs_iost.iost); for (i = 0; i < hisi_hba->queue_count; i++) devm_kfree(dev, hisi_hba->debugfs_dq[i].hdr); @@ -3784,8 +3785,8 @@ static int hisi_sas_debugfs_alloc(struct hisi_hba *hisi_hba) sz = HISI_SAS_MAX_COMMANDS * sizeof(struct hisi_sas_iost); - hisi_hba->debugfs_iost = devm_kmalloc(dev, sz, GFP_KERNEL); - if (!hisi_hba->debugfs_iost) + hisi_hba->debugfs_iost.iost = devm_kmalloc(dev, sz, GFP_KERNEL); + if (!hisi_hba->debugfs_iost.iost) goto fail; sz = HISI_SAS_IOST_ITCT_CACHE_NUM * -- cgit v1.2.3