Commit 7b379cc3 authored by Philip J Kelleher's avatar Philip J Kelleher Committed by Jens Axboe
Browse files

rsxx: Allow block size to be determined by configuration. 



Previously, the block size was determined by whether or not
our Hardware could handle 512 byte accesses. Now, all of our
Hardware can handle 512 and 4096 block sizes.

This fix allows it to be user configurable.

Signed-off-by: default avatarPhilip J Kelleher <pjk1939@linux.vnet.ibm.com>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 31a70bb4

drivers/block/rsxx/dev.c

+1 −19
Original line number Diff line number Diff line
@@ -227,24 +227,6 @@ static bool rsxx_discard_supported(struct rsxx_cardinfo *card) 
	return (pci_rev >= RSXX_DISCARD_SUPPORT);

}



static unsigned short rsxx_get_logical_block_size(

					struct rsxx_cardinfo *card)

{

	u32 capabilities = 0;

	int st;



	st = rsxx_get_card_capabilities(card, &capabilities);

	if (st)

		dev_warn(CARD_TO_DEV(card),

			"Failed reading card capabilities register\n");



	/* Earlier firmware did not have support for 512 byte accesses */

	if (capabilities & CARD_CAP_SUBPAGE_WRITES)

		return 512;

	else

		return RSXX_HW_BLK_SIZE;

}



int rsxx_attach_dev(struct rsxx_cardinfo *card)

{

	mutex_lock(&card->dev_lock);
@@ -307,7 +289,7 @@ int rsxx_setup_dev(struct rsxx_cardinfo *card) 
		return -ENOMEM;

	}



	blk_size = rsxx_get_logical_block_size(card);

	blk_size = card->config.data.block_size;



	blk_queue_make_request(card->queue, rsxx_make_request);

	blk_queue_bounce_limit(card->queue, BLK_BOUNCE_ANY);

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