linux-kernel - [RFC PATCH 12/21] mtip32xx: use lib tagset init helper

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Message-ID: <20221005032257.80681-13-kch@nvidia.com>
Date:   Tue, 4 Oct 2022 20:22:48 -0700
From:   Chaitanya Kulkarni <kch@...dia.com>
To:     <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
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Subject: [RFC PATCH 12/21] mtip32xx: use lib tagset init helper

Use the block layer helper to initialize the common fields of tag_set
such as blk_mq_ops, number of h/w queues, queue depth, command size,
numa_node, timeout, BLK_MQ_F_XXX flags, driver data. This initialization
is spread all over the block drivers. This avoids the code repetation of
the inialization code of the tag set in current block drivers and any
future ones.

Signed-off-by: Chaitanya Kulkarni <kch@...dia.com>
---
 drivers/block/mtip32xx/mtip32xx.c | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c
index 815d77ba6381..43727c526edd 100644
--- a/drivers/block/mtip32xx/mtip32xx.c
+++ b/drivers/block/mtip32xx/mtip32xx.c
@@ -3414,16 +3414,11 @@ static int mtip_block_initialize(struct driver_data *dd)
 	}
 
 	memset(&dd->tags, 0, sizeof(dd->tags));
-	dd->tags.ops = &mtip_mq_ops;
-	dd->tags.nr_hw_queues = 1;
-	dd->tags.queue_depth = MTIP_MAX_COMMAND_SLOTS;
+	blk_mq_init_tag_set(&dd->tags, &mtip_mq_ops, 1,
+			MTIP_MAX_COMMAND_SLOTS, sizeof(struct mtip_cmd),
+			dd->numa_node, MTIP_NCQ_CMD_TIMEOUT_MS,
+			BLK_MQ_F_SHOULD_MERGE, dd);
 	dd->tags.reserved_tags = 1;
-	dd->tags.cmd_size = sizeof(struct mtip_cmd);
-	dd->tags.numa_node = dd->numa_node;
-	dd->tags.flags = BLK_MQ_F_SHOULD_MERGE;
-	dd->tags.driver_data = dd;
-	dd->tags.timeout = MTIP_NCQ_CMD_TIMEOUT_MS;
-
 	rv = blk_mq_alloc_tag_set(&dd->tags);
 	if (rv) {
 		dev_err(&dd->pdev->dev,
-- 
2.29.0