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nvme-fabrics: allow nvmf_connect_io_queue to poll

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Preparation for polling support for fabrics. Polling support
means that our completion queues are not generating any interrupts
which means we need to poll for the nvmf io queue connect as well.

Reviewed by Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Sagi Grimberg 2018-12-14 11:06:08 -08:00 committed by Christoph Hellwig
parent 6287b51c77
commit 26c682274e
6 changed files with 7 additions and 7 deletions
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4
drivers/nvme/host/fabrics.c
View File

@ -441,7 +441,7 @@ EXPORT_SYMBOL_GPL(nvmf_connect_admin_queue);
* > 0: NVMe error status code
* < 0: Linux errno error code
*/
int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid)
int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid, bool poll)
{
struct nvme_command cmd;
struct nvmf_connect_data *data;
@ -468,7 +468,7 @@ int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid)
ret = __nvme_submit_sync_cmd(ctrl->connect_q, &cmd, &res,
data, sizeof(*data), 0, qid, 1,
BLK_MQ_REQ_RESERVED | BLK_MQ_REQ_NOWAIT, false);
BLK_MQ_REQ_RESERVED | BLK_MQ_REQ_NOWAIT, poll);
if (ret) {
nvmf_log_connect_error(ctrl, ret, le32_to_cpu(res.u32),
&cmd, data);

2
drivers/nvme/host/fabrics.h
View File

@ -168,7 +168,7 @@ int nvmf_reg_read32(struct nvme_ctrl *ctrl, u32 off, u32 *val);
int nvmf_reg_read64(struct nvme_ctrl *ctrl, u32 off, u64 *val);
int nvmf_reg_write32(struct nvme_ctrl *ctrl, u32 off, u32 val);
int nvmf_connect_admin_queue(struct nvme_ctrl *ctrl);
int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid);
int nvmf_connect_io_queue(struct nvme_ctrl *ctrl, u16 qid, bool poll);
int nvmf_register_transport(struct nvmf_transport_ops *ops);
void nvmf_unregister_transport(struct nvmf_transport_ops *ops);
void nvmf_free_options(struct nvmf_ctrl_options *opts);

2
drivers/nvme/host/fc.c
View File

@ -1975,7 +1975,7 @@ nvme_fc_connect_io_queues(struct nvme_fc_ctrl *ctrl, u16 qsize)
(qsize / 5));
if (ret)
break;
ret = nvmf_connect_io_queue(&ctrl->ctrl, i);
ret = nvmf_connect_io_queue(&ctrl->ctrl, i, false);
if (ret)
break;

2
drivers/nvme/host/rdma.c
View File

@ -598,7 +598,7 @@ static int nvme_rdma_start_queue(struct nvme_rdma_ctrl *ctrl, int idx)
int ret;
if (idx)
ret = nvmf_connect_io_queue(&ctrl->ctrl, idx);
ret = nvmf_connect_io_queue(&ctrl->ctrl, idx, false);
else
ret = nvmf_connect_admin_queue(&ctrl->ctrl);

2
drivers/nvme/host/tcp.c
View File

@ -1394,7 +1394,7 @@ static int nvme_tcp_start_queue(struct nvme_ctrl *nctrl, int idx)
int ret;
if (idx)
ret = nvmf_connect_io_queue(nctrl, idx);
ret = nvmf_connect_io_queue(nctrl, idx, false);
else
ret = nvmf_connect_admin_queue(nctrl);

2
drivers/nvme/target/loop.c
View File

@ -345,7 +345,7 @@ static int nvme_loop_connect_io_queues(struct nvme_loop_ctrl *ctrl)
int i, ret;
for (i = 1; i < ctrl->ctrl.queue_count; i++) {
ret = nvmf_connect_io_queue(&ctrl->ctrl, i);
ret = nvmf_connect_io_queue(&ctrl->ctrl, i, false);
if (ret)
return ret;
set_bit(NVME_LOOP_Q_LIVE, &ctrl->queues[i].flags);