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authorChristoph Hellwig <hch@lst.de>2016-02-29 15:59:47 +0100
committerJens Axboe <axboe@fb.com>2016-02-29 16:47:17 +0100
commit1cb3cce5eb9de335330c8a147e47e3359a51a8b5 (patch)
treece6bdeaa4cd35dcc966e848d92c9d427d634ebdc /drivers/nvme/host/pci.c
parentnvme: replace the kthread with a per-device watchdog timer (diff)
downloadlinux-1cb3cce5eb9de335330c8a147e47e3359a51a8b5.tar.xz
linux-1cb3cce5eb9de335330c8a147e47e3359a51a8b5.zip
nvme: return the whole CQE through the request passthrough interface
Both LighNVM and NVMe over Fabrics need to look at more than just the status and result field. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Matias Bj?rling <m@bjorling.me> Reviewed-by: Jay Freyensee <james.p.freyensee@intel.com> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Keith Busch <keith.busch@intel.com> Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/nvme/host/pci.c')
-rw-r--r--drivers/nvme/host/pci.c11
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/nvme/host/pci.c b/drivers/nvme/host/pci.c
index a62336051178..d47b08783110 100644
--- a/drivers/nvme/host/pci.c
+++ b/drivers/nvme/host/pci.c
@@ -748,10 +748,8 @@ static void __nvme_process_cq(struct nvme_queue *nvmeq, unsigned int *tag)
}
req = blk_mq_tag_to_rq(*nvmeq->tags, cqe.command_id);
- if (req->cmd_type == REQ_TYPE_DRV_PRIV) {
- u32 result = le32_to_cpu(cqe.result);
- req->special = (void *)(uintptr_t)result;
- }
+ if (req->cmd_type == REQ_TYPE_DRV_PRIV && req->special)
+ memcpy(req->special, &cqe, sizeof(cqe));
blk_mq_complete_request(req, status >> 1);
}
@@ -901,13 +899,10 @@ static void abort_endio(struct request *req, int error)
{
struct nvme_iod *iod = blk_mq_rq_to_pdu(req);
struct nvme_queue *nvmeq = iod->nvmeq;
- u32 result = (u32)(uintptr_t)req->special;
u16 status = req->errors;
- dev_warn(nvmeq->dev->ctrl.device,
- "Abort status:%x result:%x", status, result);
+ dev_warn(nvmeq->dev->ctrl.device, "Abort status: 0x%x", status);
atomic_inc(&nvmeq->dev->ctrl.abort_limit);
-
blk_mq_free_request(req);
}