From: "Javier González" <jg@lightnvm.io>
To: mb@lightnvm.io
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
"Javier González" <jg@lightnvm.io>,
"Javier González" <javier@cnexlabs.com>,
"Matias Bjørling" <m@bjorling.me>
Subject: [PATCH 05/20] lightnvm: rrpc: split bios of size > 256kb
Date: Fri, 18 Nov 2016 15:43:27 +0100 [thread overview]
Message-ID: <1479480222-18790-6-git-send-email-javier@cnexlabs.com> (raw)
In-Reply-To: <1479480222-18790-1-git-send-email-javier@cnexlabs.com>
From: Javier González <jg@lightnvm.io>
rrpc cannot handle bios of size > 256kb due to NVMe using a 64 bit
bitmap to signal I/O completion. If a larger bio comes, split it
explicitly.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <m@bjorling.me>
---
drivers/lightnvm/rrpc.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/lightnvm/rrpc.c b/drivers/lightnvm/rrpc.c
index 2b71b7e..60ca9d4 100644
--- a/drivers/lightnvm/rrpc.c
+++ b/drivers/lightnvm/rrpc.c
@@ -943,6 +943,8 @@ static blk_qc_t rrpc_make_rq(struct request_queue *q, struct bio *bio)
struct nvm_rq *rqd;
int err;
+ blk_queue_split(q, &bio, q->bio_split);
+
if (bio_op(bio) == REQ_OP_DISCARD) {
rrpc_discard(rrpc, bio);
return BLK_QC_T_NONE;
--
2.7.4
next prev parent reply other threads:[~2016-11-18 14:44 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-18 14:43 [PATCH 00/20] lightnvm: simplify media manager Javier González
2016-11-18 14:43 ` [PATCH 01/20] lightnvm: enable to send hint to erase command Javier González
2016-11-18 14:43 ` [PATCH 02/20] lightnvm: do not protect block 0 Javier González
2016-11-18 14:43 ` [PATCH 03/20] lightnvm: export set bad block table Javier González
2016-11-18 14:43 ` [PATCH 04/20] lightnvm: add ECC error codes Javier González
2016-11-18 14:43 ` Javier González [this message]
2016-11-18 14:43 ` [PATCH 06/20] lightnvm: remove sysfs configuration interface Javier González
2016-11-18 14:43 ` [PATCH 07/20] lightnvm: cleanup unused target operations Javier González
2016-11-18 14:43 ` [PATCH 08/20] lightnvm: make address conversion functions global Javier González
2016-11-18 14:43 ` [PATCH 09/20] lightnvm: remove unnecessary variables in rrpc Javier González
2016-11-18 14:43 ` [PATCH 10/20] lightnvm: use constant name instead of value Javier González
2016-11-18 14:43 ` [PATCH 11/20] lightnvm: remove gen_lun abstraction Javier González
2016-11-18 14:43 ` [PATCH 12/20] lightnvm: manage lun partitions internally in mm Javier González
2016-11-18 14:43 ` [PATCH 13/20] lightnvm: move block provisioning to targets Javier González
2016-11-18 18:20 ` kbuild test robot
2016-11-18 14:43 ` [PATCH 14/20] lightnvm: remove get_lun operation on gennvm Javier González
2016-11-18 14:43 ` [PATCH 15/20] lightnvm: remove debug lun statistics from gennvm Javier González
2016-11-18 14:43 ` [PATCH 16/20] lightnvm: eliminate nvm_block abstraction on mm Javier González
2016-11-18 18:45 ` kbuild test robot
2016-11-18 14:43 ` [PATCH 17/20] lightnvm: eliminate nvm_lun abstraction in mm Javier González
2016-11-18 14:43 ` [PATCH 18/20] lightnvm: introduce helpers for generic ops in rrpc Javier González
2016-11-18 14:43 ` [PATCH 19/20] lightnvm: introduce max_phys_sects helper function Javier González
2016-11-18 14:43 ` [PATCH 20/20] lightnvm: use target nvm on target-specific ops Javier González
2016-11-21 11:29 ` [PATCH 00/20] lightnvm: simplify media manager Matias Bjørling
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