From 5b40db99099ddebe31e9b1b759894cf09c0c6679 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Matias=20Bj=C3=B8rling?= Date: Thu, 19 Nov 2015 12:50:09 +0100 Subject: [PATCH] null_blk: use device addressing mode MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit The linear addressing mode was removed in 7386af2. Make null_blk instead expose the ppa format geometry and support the generic addressing mode. Signed-off-by: Matias Bjørling Signed-off-by: Jens Axboe --- drivers/block/null_blk.c | 28 +++++++++++++++++++++++----- 1 file changed, 23 insertions(+), 5 deletions(-) diff --git a/drivers/block/null_blk.c b/drivers/block/null_blk.c index 3e9c4f94b5be..d51c24ac529f 100644 --- a/drivers/block/null_blk.c +++ b/drivers/block/null_blk.c @@ -486,6 +486,7 @@ static int null_lnvm_submit_io(struct request_queue *q, struct nvm_rq *rqd) static int null_lnvm_id(struct request_queue *q, struct nvm_id *id) { sector_t size = gb * 1024 * 1024 * 1024ULL; + sector_t blksize; struct nvm_id_group *grp; id->ver_id = 0x1; @@ -493,17 +494,34 @@ static int null_lnvm_id(struct request_queue *q, struct nvm_id *id) id->cgrps = 1; id->cap = 0x3; id->dom = 0x1; - id->ppat = NVM_ADDRMODE_LINEAR; + + id->ppaf.blk_offset = 0; + id->ppaf.blk_len = 16; + id->ppaf.pg_offset = 16; + id->ppaf.pg_len = 16; + id->ppaf.sect_offset = 32; + id->ppaf.sect_len = 8; + id->ppaf.pln_offset = 40; + id->ppaf.pln_len = 8; + id->ppaf.lun_offset = 48; + id->ppaf.lun_len = 8; + id->ppaf.ch_offset = 56; + id->ppaf.ch_len = 8; do_div(size, bs); /* convert size to pages */ + do_div(size, 256); /* concert size to pgs pr blk */ grp = &id->groups[0]; grp->mtype = 0; - grp->fmtype = 1; + grp->fmtype = 0; grp->num_ch = 1; - grp->num_lun = 1; - grp->num_pln = 1; - grp->num_blk = size / 256; grp->num_pg = 256; + blksize = size; + do_div(size, (1 << 16)); + grp->num_lun = size + 1; + do_div(blksize, grp->num_lun); + grp->num_blk = blksize; + grp->num_pln = 1; + grp->fpg_sz = bs; grp->csecs = bs; grp->trdt = 25000; -- 2.20.1