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generic: 6.6: update block nvmem patchset

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While discussions are still ongoing, update the block NVMEM provider
patchset to the level submitted upstream to allow testing and validation.

Link: https://patchwork.kernel.org/project/linux-block/list/?series=875202
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2024-06-28 03:39:36 +01:00
parent 6bb334c5cf
commit 9778174086
4 changed files with 151 additions and 34 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

99
target/linux/generic/pending-6.6/451-block-partitions-populate-fwnode.patch
View File

@ -1,15 +1,42 @@
From 7f4c9c534aabe1315669e076d3fe0af0fd374cda Mon Sep 17 00:00:00 2001
From patchwork Tue Jul 30 19:25:59 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
X-Patchwork-Id: 13747816
Date: Tue, 30 Jul 2024 20:25:59 +0100
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 30 May 2024 03:13:19 +0100
Subject: [PATCH 2/9] block: partitions: populate fwnode
To: Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Jens Axboe <axboe@kernel.dk>,
Daniel Golle <daniel@makrotopia.org>, Christian Brauner <brauner@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>, Li Lingfeng <lilingfeng3@huawei.com>,
Ming Lei <ming.lei@redhat.com>, Christian Heusel <christian@heusel.eu>,
=?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= <rafal@milecki.pl>,
Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
Chad Monroe <chad.monroe@adtran.com>, Yangyu Chen <cyy@cyyself.name>,
Tianling Shen <cnsztl@immortalwrt.org>, Chuanhong Guo <gch981213@gmail.com>,
Chen Minqiang <ptpt52@gmail.com>, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org
Subject: [PATCH v5 2/4] block: partitions: populate fwnode
Message-ID:
<3051ac090ad3b3e2f5adb6b67c923261ead729a5.1722365899.git.daniel@makrotopia.org>
References: <cover.1722365899.git.daniel@makrotopia.org>
Precedence: bulk
X-Mailing-List: linux-block@vger.kernel.org
List-Id: <linux-block.vger.kernel.org>
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In-Reply-To: <cover.1722365899.git.daniel@makrotopia.org>
Let block partitions to be represented by a firmware node and hence
allow them to being referenced e.g. for use with blk-nvmem.
Assign matching firmware nodes to block partitions in order to allow
them to be referenced e.g. as NVMEM providers.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
block/partitions/core.c | 41 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
block/partitions/core.c | 72 +++++++++++++++++++++++++++++++++++++++++
1 file changed, 72 insertions(+)
--- a/block/partitions/core.c
+++ b/block/partitions/core.c
@ -22,36 +49,70 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
#include "check.h"
static int (*const check_part[])(struct parsed_partitions *) = {
@@ -292,6 +294,40 @@ static ssize_t whole_disk_show(struct de
@@ -292,6 +294,74 @@ static ssize_t whole_disk_show(struct de
}
static const DEVICE_ATTR(whole_disk, 0444, whole_disk_show, NULL);
+static bool part_meta_match(const char *attr, const char *member, size_t length)
+{
+ /* check if length of attr exceeds specified maximum length */
+ if (strnlen(attr, length) == length)
+ return false;
+
+ /* return true if strings match */
+ return !strncmp(attr, member, length);
+}
+
+static struct fwnode_handle *find_partition_fwnode(struct block_device *bdev)
+{
+ struct fwnode_handle *fw_parts, *fw_part;
+ struct device *ddev = disk_to_dev(bdev->bd_disk);
+ const char *partname, *uuid;
+ u32 partno;
+ bool got_uuid, got_partname, got_partno;
+
+ fw_parts = device_get_named_child_node(ddev, "partitions");
+ if (!fw_parts)
+ return NULL;
+
+ fwnode_for_each_child_node(fw_parts, fw_part) {
+ if (!fwnode_property_read_string(fw_part, "uuid", &uuid) &&
+ (!bdev->bd_meta_info || strncmp(uuid,
+ bdev->bd_meta_info->uuid,
+ PARTITION_META_INFO_UUIDLTH)))
+ got_uuid = false;
+ got_partname = false;
+ got_partno = false;
+ /*
+ * In case 'uuid' is defined in the partitions firmware node
+ * require partition meta info being present and the specified
+ * uuid to match.
+ */
+ got_uuid = !fwnode_property_read_string(fw_part, "uuid", &uuid);
+ if (got_uuid && (!bdev->bd_meta_info ||
+ !part_meta_match(uuid, bdev->bd_meta_info->uuid,
+ PARTITION_META_INFO_UUIDLTH)))
+ continue;
+
+ if (!fwnode_property_read_string(fw_part, "partname", &partname) &&
+ (!bdev->bd_meta_info || strncmp(partname,
+ bdev->bd_meta_info->volname,
+ PARTITION_META_INFO_VOLNAMELTH)))
+ /*
+ * In case 'partname' is defined in the partitions firmware node
+ * require partition meta info being present and the specified
+ * volname to match.
+ */
+ got_partname = !fwnode_property_read_string(fw_part, "partname",
+ &partname);
+ if (got_partname && (!bdev->bd_meta_info ||
+ !part_meta_match(partname,
+ bdev->bd_meta_info->volname,
+ PARTITION_META_INFO_VOLNAMELTH)))
+ continue;
+
+ if (!fwnode_property_read_u32(fw_part, "partno", &partno) &&
+ bdev->bd_partno != partno)
+ /*
+ * In case 'partno' is defined in the partitions firmware node
+ * the specified partno needs to match.
+ */
+ got_partno = !fwnode_property_read_u32(fw_part, "partno", &partno);
+ if (got_partno && bdev->bd_partno != partno)
+ continue;
+
+ /* Skip if no matching criteria is present in firmware node */
+ if (!got_uuid && !got_partname && !got_partno)
+ continue;
+
+ return fw_part;
@ -63,7 +124,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
/*
* Must be called either with open_mutex held, before a disk can be opened or
* after all disk users are gone.
@@ -374,6 +410,8 @@ static struct block_device *add_partitio
@@ -374,6 +444,8 @@ static struct block_device *add_partitio
goto out_put;
}

49
target/linux/generic/pending-6.6/452-block-add-support-for-notifications.patch
View File

@ -1,7 +1,34 @@
From e07ace307ce598847074a096f408bec0e3a392ed Mon Sep 17 00:00:00 2001
From patchwork Tue Jul 30 19:26:42 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
X-Patchwork-Id: 13747817
Date: Tue, 30 Jul 2024 20:26:42 +0100
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 30 May 2024 03:14:34 +0100
Subject: [PATCH 3/9] block: add support for notifications
To: Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Jens Axboe <axboe@kernel.dk>,
Daniel Golle <daniel@makrotopia.org>, Christian Brauner <brauner@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>, Li Lingfeng <lilingfeng3@huawei.com>,
Ming Lei <ming.lei@redhat.com>, Christian Heusel <christian@heusel.eu>,
=?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= <rafal@milecki.pl>,
Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
Chad Monroe <chad.monroe@adtran.com>, Yangyu Chen <cyy@cyyself.name>,
Tianling Shen <cnsztl@immortalwrt.org>, Chuanhong Guo <gch981213@gmail.com>,
Chen Minqiang <ptpt52@gmail.com>, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org
Subject: [PATCH v5 3/4] block: add support for notifications
Message-ID:
<ca0022886e8f211a323a716653a1396a3bc91653.1722365899.git.daniel@makrotopia.org>
References: <cover.1722365899.git.daniel@makrotopia.org>
Precedence: bulk
X-Mailing-List: linux-block@vger.kernel.org
List-Id: <linux-block.vger.kernel.org>
List-Subscribe: <mailto:linux-block+subscribe@vger.kernel.org>
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MIME-Version: 1.0
Content-Disposition: inline
In-Reply-To: <cover.1722365899.git.daniel@makrotopia.org>
Add notifier block to notify other subsystems about the addition or
removal of block devices.
@ -10,9 +37,9 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
block/Kconfig | 6 +++
block/Makefile | 1 +
block/blk-notify.c | 88 ++++++++++++++++++++++++++++++++++++++++++
include/linux/blkdev.h | 8 ++++
4 files changed, 103 insertions(+)
block/blk-notify.c | 87 ++++++++++++++++++++++++++++++++++++++++++
include/linux/blkdev.h | 11 ++++++
4 files changed, 105 insertions(+)
create mode 100644 block/blk-notify.c
--- a/block/Kconfig
@ -39,7 +66,7 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+obj-$(CONFIG_BLOCK_NOTIFIERS) += blk-notify.o
--- /dev/null
+++ b/block/blk-notify.c
@@ -0,0 +1,88 @@
@@ -0,0 +1,87 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Notifiers for addition and removal of block devices
@ -97,7 +124,6 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+ list_add_tail(&new_blkdev->list, &blk_devices);
+ raw_notifier_call_chain(&blk_notifier_list, BLK_DEVICE_ADD, dev);
+ mutex_unlock(&blk_notifier_lock);
+
+ return 0;
+}
+
@ -130,16 +156,19 @@ Signed-off-by: Daniel Golle <daniel@makrotopia.org>
+device_initcall(blk_notifications_init);
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -1564,4 +1564,12 @@ struct io_comp_batch {
@@ -1564,4 +1564,15 @@ struct io_comp_batch {
#define DEFINE_IO_COMP_BATCH(name) struct io_comp_batch name = { }
+
+#ifdef CONFIG_BLOCK_NOTIFIERS
+#define BLK_DEVICE_ADD 1
+#define BLK_DEVICE_REMOVE 2
+#if defined(CONFIG_BLOCK_NOTIFIERS)
+void blk_register_notify(struct notifier_block *nb);
+void blk_unregister_notify(struct notifier_block *nb);
+#else
+static inline void blk_register_notify(struct notifier_block *nb) { };
+static inline void blk_unregister_notify(struct notifier_block *nb) { };
+#endif
+
#endif /* _LINUX_BLKDEV_H */

33
target/linux/generic/pending-6.6/453-block-add-new-genhd-flag-GENHD_FL_NVMEM.patch
View File

@ -1,7 +1,34 @@
From f4487fa1cb7e55b3c17a33f41b9c9d66f4f853b7 Mon Sep 17 00:00:00 2001
From patchwork Tue Jul 30 19:27:07 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
X-Patchwork-Submitter: Daniel Golle <daniel@makrotopia.org>
X-Patchwork-Id: 13747818
Date: Tue, 30 Jul 2024 20:27:07 +0100
From: Daniel Golle <daniel@makrotopia.org>
Date: Thu, 30 May 2024 03:14:49 +0100
Subject: [PATCH 4/9] block: add new genhd flag GENHD_FL_NVMEM
To: Rob Herring <robh@kernel.org>, Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>, Jens Axboe <axboe@kernel.dk>,
Daniel Golle <daniel@makrotopia.org>, Christian Brauner <brauner@kernel.org>,
Al Viro <viro@zeniv.linux.org.uk>, Li Lingfeng <lilingfeng3@huawei.com>,
Ming Lei <ming.lei@redhat.com>, Christian Heusel <christian@heusel.eu>,
=?utf-8?b?UmFmYcWCIE1pxYJlY2tp?= <rafal@milecki.pl>,
Felix Fietkau <nbd@nbd.name>, John Crispin <john@phrozen.org>,
Chad Monroe <chad.monroe@adtran.com>, Yangyu Chen <cyy@cyyself.name>,
Tianling Shen <cnsztl@immortalwrt.org>, Chuanhong Guo <gch981213@gmail.com>,
Chen Minqiang <ptpt52@gmail.com>, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-block@vger.kernel.org
Subject: [PATCH v5 4/4] block: add new genhd flag GENHD_FL_NVMEM
Message-ID:
<311ea569c23ce14e2896cd3b069dc494c58c49c2.1722365899.git.daniel@makrotopia.org>
References: <cover.1722365899.git.daniel@makrotopia.org>
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In-Reply-To: <cover.1722365899.git.daniel@makrotopia.org>
Add new flag to destinguish block devices which may act as an NVMEM
provider.

4
target/linux/mediatek/patches-6.6/041-block-fit-partition-parser.patch
View File

@ -92,7 +92,7 @@ Subject: [PATCH] kernel: add block fit partition parser
#ifdef CONFIG_SGI_PARTITION
sgi_partition,
#endif
@@ -430,6 +436,11 @@ static struct block_device *add_partitio
@@ -462,6 +468,11 @@ static struct block_device *add_partitio
goto out_del;
}
@ -104,7 +104,7 @@ Subject: [PATCH] kernel: add block fit partition parser
/* everything is up and running, commence */
err = xa_insert(&disk->part_tbl, partno, bdev, GFP_KERNEL);
if (err)
@@ -622,6 +633,11 @@ static bool blk_add_partition(struct gen
@@ -654,6 +665,11 @@ static bool blk_add_partition(struct gen
(state->parts[p].flags & ADDPART_FLAG_RAID))
md_autodetect_dev(part->bd_dev);