From: Avri Altman <avri.altman@wdc.com>
To: "James E . J . Bottomley" <jejb@linux.vnet.ibm.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>,
linux-scsi@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: gregkh@linuxfoundation.org, Bart Van Assche <bvanassche@acm.org>,
yongmyung lee <ymhungry.lee@samsung.com>,
Daejun Park <daejun7.park@samsung.com>,
alim.akhtar@samsung.com, asutoshd@codeaurora.org,
Zang Leigang <zangleigang@hisilicon.com>,
Avi Shchislowski <avi.shchislowski@wdc.com>,
Bean Huo <beanhuo@micron.com>,
cang@codeaurora.org, stanley.chu@mediatek.com,
Avri Altman <avri.altman@wdc.com>
Subject: [PATCH v5 05/10] scsi: ufshpb: Region inactivation in host mode
Date: Tue, 2 Mar 2021 15:24:58 +0200 [thread overview]
Message-ID: <20210302132503.224670-6-avri.altman@wdc.com> (raw)
In-Reply-To: <20210302132503.224670-1-avri.altman@wdc.com>
I host mode, the host is expected to send HPB-WRITE-BUFFER with
buffer-id = 0x1 when it inactivates a region.
Use the map-requests pool as there is no point in assigning a
designated cache for umap-requests.
Signed-off-by: Avri Altman <avri.altman@wdc.com>
---
drivers/scsi/ufs/ufshpb.c | 14 ++++++++++++++
drivers/scsi/ufs/ufshpb.h | 1 +
2 files changed, 15 insertions(+)
diff --git a/drivers/scsi/ufs/ufshpb.c b/drivers/scsi/ufs/ufshpb.c
index 6f4fd22eaf2f..0744feb4d484 100644
--- a/drivers/scsi/ufs/ufshpb.c
+++ b/drivers/scsi/ufs/ufshpb.c
@@ -907,6 +907,7 @@ static int ufshpb_execute_umap_req(struct ufshpb_lu *hpb,
blk_execute_rq_nowait(q, NULL, req, 1, ufshpb_umap_req_compl_fn);
+ hpb->stats.umap_req_cnt++;
return 0;
}
@@ -1103,6 +1104,12 @@ static int ufshpb_issue_umap_req(struct ufshpb_lu *hpb,
return -EAGAIN;
}
+static int ufshpb_issue_umap_single_req(struct ufshpb_lu *hpb,
+ struct ufshpb_region *rgn)
+{
+ return ufshpb_issue_umap_req(hpb, rgn);
+}
+
static int ufshpb_issue_umap_all_req(struct ufshpb_lu *hpb)
{
return ufshpb_issue_umap_req(hpb, NULL);
@@ -1115,6 +1122,10 @@ static void __ufshpb_evict_region(struct ufshpb_lu *hpb,
struct ufshpb_subregion *srgn;
int srgn_idx;
+
+ if (hpb->is_hcm && ufshpb_issue_umap_single_req(hpb, rgn))
+ return;
+
lru_info = &hpb->lru_info;
dev_dbg(&hpb->sdev_ufs_lu->sdev_dev, "evict region %d\n", rgn->rgn_idx);
@@ -1855,6 +1866,7 @@ ufshpb_sysfs_attr_show_func(rb_noti_cnt);
ufshpb_sysfs_attr_show_func(rb_active_cnt);
ufshpb_sysfs_attr_show_func(rb_inactive_cnt);
ufshpb_sysfs_attr_show_func(map_req_cnt);
+ufshpb_sysfs_attr_show_func(umap_req_cnt);
static struct attribute *hpb_dev_stat_attrs[] = {
&dev_attr_hit_cnt.attr,
@@ -1863,6 +1875,7 @@ static struct attribute *hpb_dev_stat_attrs[] = {
&dev_attr_rb_active_cnt.attr,
&dev_attr_rb_inactive_cnt.attr,
&dev_attr_map_req_cnt.attr,
+ &dev_attr_umap_req_cnt.attr,
NULL,
};
@@ -1978,6 +1991,7 @@ static void ufshpb_stat_init(struct ufshpb_lu *hpb)
hpb->stats.rb_active_cnt = 0;
hpb->stats.rb_inactive_cnt = 0;
hpb->stats.map_req_cnt = 0;
+ hpb->stats.umap_req_cnt = 0;
}
static void ufshpb_param_init(struct ufshpb_lu *hpb)
diff --git a/drivers/scsi/ufs/ufshpb.h b/drivers/scsi/ufs/ufshpb.h
index bd4308010466..84598a317897 100644
--- a/drivers/scsi/ufs/ufshpb.h
+++ b/drivers/scsi/ufs/ufshpb.h
@@ -186,6 +186,7 @@ struct ufshpb_stats {
u64 rb_inactive_cnt;
u64 map_req_cnt;
u64 pre_req_cnt;
+ u64 umap_req_cnt;
};
struct ufshpb_lu {
--
2.25.1
next prev parent reply other threads:[~2021-03-02 16:11 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-02 13:24 [PATCH v5 00/10] Add Host control mode to HPB Avri Altman
2021-03-02 13:24 ` [PATCH v5 01/10] scsi: ufshpb: Cache HPB Control mode on init Avri Altman
2021-03-02 13:24 ` [PATCH v5 02/10] scsi: ufshpb: Add host control mode support to rsp_upiu Avri Altman
2021-03-02 13:24 ` [PATCH v5 03/10] scsi: ufshpb: Add region's reads counter Avri Altman
2021-03-11 7:52 ` Can Guo
2021-03-11 8:04 ` Avri Altman
2021-03-11 8:07 ` Can Guo
2021-03-15 3:16 ` Can Guo
2021-03-15 9:20 ` Avri Altman
2021-03-15 9:31 ` Can Guo
2021-03-17 9:19 ` Avri Altman
2021-03-15 8:40 ` Can Guo
2021-03-15 9:22 ` Avri Altman
2021-03-02 13:24 ` [PATCH v5 04/10] scsi: ufshpb: Make eviction depends on region's reads Avri Altman
2021-03-11 7:53 ` Can Guo
2021-03-11 8:06 ` Avri Altman
2021-03-15 8:30 ` Can Guo
2021-03-16 8:34 ` Avri Altman
2021-03-02 13:24 ` Avri Altman [this message]
2021-03-11 8:20 ` [PATCH v5 05/10] scsi: ufshpb: Region inactivation in host mode Can Guo
2021-03-11 9:03 ` Avri Altman
2021-03-15 4:02 ` Can Guo
2021-03-15 7:33 ` Can Guo
2021-03-16 8:30 ` Avri Altman
2021-03-17 1:23 ` Can Guo
[not found] ` <CGME20210316083014epcas2p32d6b84e689cdbe06ee065c870b236d65@epcms2p3>
2021-03-17 2:28 ` Daejun Park
2021-03-17 4:41 ` Can Guo
2021-03-17 7:59 ` Avri Altman
[not found] ` <CGME20210316083014epcas2p32d6b84e689cdbe06ee065c870b236d65@epcms2p4>
2021-03-17 5:19 ` Daejun Park
2021-03-17 5:34 ` Can Guo
[not found] ` <CGME20210316083014epcas2p32d6b84e689cdbe06ee065c870b236d65@epcms2p6>
2021-03-17 5:42 ` Daejun Park
2021-03-02 13:24 ` [PATCH v5 06/10] scsi: ufshpb: Add hpb dev reset response Avri Altman
2021-03-15 1:34 ` Can Guo
2021-03-15 6:40 ` Can Guo
2021-03-15 7:42 ` Avri Altman
2021-03-17 10:56 ` Can Guo
2021-03-17 11:23 ` Avri Altman
2021-03-17 12:12 ` Can Guo
2021-03-17 12:22 ` Avri Altman
2021-03-17 13:50 ` Can Guo
2021-03-17 14:22 ` Avri Altman
2021-03-17 14:36 ` Can Guo
2021-03-17 15:46 ` Avri Altman
2021-03-18 1:00 ` Can Guo
2021-03-18 8:04 ` Avri Altman
2021-03-02 13:25 ` [PATCH v5 07/10] scsi: ufshpb: Add "Cold" regions timer Avri Altman
2021-03-15 1:37 ` Can Guo
2021-03-15 7:54 ` Avri Altman
2021-03-15 9:36 ` Can Guo
2021-03-16 9:21 ` Avri Altman
2021-03-17 2:45 ` Can Guo
2021-03-17 7:55 ` Avri Altman
2021-06-01 16:22 ` Bart Van Assche
2021-03-02 13:25 ` [PATCH v5 08/10] scsi: ufshpb: Limit the number of inflight map requests Avri Altman
2021-03-15 8:31 ` Can Guo
2021-03-16 8:32 ` Avri Altman
2021-03-02 13:25 ` [PATCH v5 09/10] scsi: ufshpb: Add support for host control mode Avri Altman
2021-03-02 13:25 ` [PATCH v5 10/10] scsi: ufshpb: Make host mode parameters configurable Avri Altman
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