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| author | Javier González | 2017-06-26 11:57:20 +0200 |
|---|---|---|
| committer | Jens Axboe | 2017-06-27 00:27:39 +0200 |
| commit | f9c101523da75cd483b95f04c21242bb83960d93 (patch) | |
| tree | a6d20ae407bb1768d844bab613f165617d7ddff3 /drivers/lightnvm/pblk-recovery.c | |
| parent | lightnvm: pblk: delete redundant buffer pointer (diff) | |
| download | kernel-qcow2-linux-f9c101523da75cd483b95f04c21242bb83960d93.tar.gz kernel-qcow2-linux-f9c101523da75cd483b95f04c21242bb83960d93.tar.xz kernel-qcow2-linux-f9c101523da75cd483b95f04c21242bb83960d93.zip | |
lightnvm: pblk: issue multiplane reads if possible
If a read request is sequential and its size aligns with a
multi-plane page size, use the multi-plane hint to process the I/O in
parallel in the controller.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <matias@cnexlabs.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/lightnvm/pblk-recovery.c')
| -rw-r--r-- | drivers/lightnvm/pblk-recovery.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/drivers/lightnvm/pblk-recovery.c b/drivers/lightnvm/pblk-recovery.c index 7b0ace2f4957..b9f2b40bd5a7 100644 --- a/drivers/lightnvm/pblk-recovery.c +++ b/drivers/lightnvm/pblk-recovery.c @@ -257,7 +257,6 @@ next_read_rq: rqd->bio = bio; rqd->opcode = NVM_OP_PREAD; - rqd->flags = pblk_set_read_mode(pblk); rqd->meta_list = meta_list; rqd->nr_ppas = rq_ppas; rqd->ppa_list = ppa_list; @@ -266,6 +265,11 @@ next_read_rq: rqd->end_io = pblk_end_io_sync; rqd->private = &wait; + if (pblk_io_aligned(pblk, rq_ppas)) + rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL); + else + rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_RANDOM); + for (i = 0; i < rqd->nr_ppas; ) { struct ppa_addr ppa; int pos; @@ -473,7 +477,6 @@ next_rq: rqd->bio = bio; rqd->opcode = NVM_OP_PREAD; - rqd->flags = pblk_set_read_mode(pblk); rqd->meta_list = meta_list; rqd->nr_ppas = rq_ppas; rqd->ppa_list = ppa_list; @@ -482,6 +485,11 @@ next_rq: rqd->end_io = pblk_end_io_sync; rqd->private = &wait; + if (pblk_io_aligned(pblk, rq_ppas)) + rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL); + else + rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_RANDOM); + for (i = 0; i < rqd->nr_ppas; ) { struct ppa_addr ppa; int pos; @@ -607,7 +615,6 @@ next_rq: rqd->bio = bio; rqd->opcode = NVM_OP_PREAD; - rqd->flags = pblk_set_read_mode(pblk); rqd->meta_list = meta_list; rqd->nr_ppas = rq_ppas; rqd->ppa_list = ppa_list; @@ -616,6 +623,11 @@ next_rq: rqd->end_io = pblk_end_io_sync; rqd->private = &wait; + if (pblk_io_aligned(pblk, rq_ppas)) + rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_SEQUENTIAL); + else + rqd->flags = pblk_set_read_mode(pblk, PBLK_READ_RANDOM); + for (i = 0; i < rqd->nr_ppas; ) { struct ppa_addr ppa; int pos; |