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sed-opal: add helper to get multiple columns at once.

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Refactors current code querying single column to use the
new helper. Real multi column usage will be added later.

Signed-off-by: Ondrej Kozina <okozina@redhat.com>
Tested-by: Luca Boccassi <bluca@debian.org>
Tested-by: Milan Broz <gmazyland@gmail.com>
Acked-by: Christian Brauner <brauner@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20230405111223.272816-5-okozina@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Ondrej Kozina 2023-04-05 13:12:22 +02:00 committed by Jens Axboe
parent 8be19a02f1
commit baf82b679c
1 changed files with 14 additions and 8 deletions
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22
block/sed-opal.c
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@ -1149,12 +1149,8 @@ static int finalize_and_send(struct opal_dev *dev, cont_fn cont)
return opal_send_recv(dev, cont);
}
/*
* request @column from table @table on device @dev. On success, the column
* data will be available in dev->resp->tok[4]
*/
static int generic_get_column(struct opal_dev *dev, const u8 *table,
u64 column)
static int generic_get_columns(struct opal_dev *dev, const u8 *table,
u64 start_column, u64 end_column)
{
int err;
@ -1164,12 +1160,12 @@ static int generic_get_column(struct opal_dev *dev, const u8 *table,
add_token_u8(&err, dev, OPAL_STARTNAME);
add_token_u8(&err, dev, OPAL_STARTCOLUMN);
add_token_u64(&err, dev, column);
add_token_u64(&err, dev, start_column);
add_token_u8(&err, dev, OPAL_ENDNAME);
add_token_u8(&err, dev, OPAL_STARTNAME);
add_token_u8(&err, dev, OPAL_ENDCOLUMN);
add_token_u64(&err, dev, column);
add_token_u64(&err, dev, end_column);
add_token_u8(&err, dev, OPAL_ENDNAME);
add_token_u8(&err, dev, OPAL_ENDLIST);
@ -1180,6 +1176,16 @@ static int generic_get_column(struct opal_dev *dev, const u8 *table,
return finalize_and_send(dev, parse_and_check_status);
}
/*
* request @column from table @table on device @dev. On success, the column
* data will be available in dev->resp->tok[4]
*/
static int generic_get_column(struct opal_dev *dev, const u8 *table,
u64 column)
{
return generic_get_columns(dev, table, column, column);
}
/*
* see TCG SAS 5.3.2.3 for a description of the available columns
*