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Message-Id: <20181115171626.9306-5-sagi@lightbitslabs.com>
Date: Thu, 15 Nov 2018 09:16:16 -0800
From: Sagi Grimberg <sagi@...htbitslabs.com>
To: linux-nvme@...ts.infradead.org
Cc: linux-block@...r.kernel.org, netdev@...r.kernel.org,
Christoph Hellwig <hch@....de>,
Keith Busch <keith.busch@...el.com>
Subject: [PATCH 04/11] nvme-core: add work elements to struct nvme_ctrl
connect_work and err_work will be reused by nvme-tcp so
share those in nvme_ctrl for rdma and fc to share.
Signed-off-by: Sagi Grimberg <sagi@...htbitslabs.com>
---
drivers/nvme/host/fc.c | 18 ++++++++----------
drivers/nvme/host/nvme.h | 2 ++
drivers/nvme/host/rdma.c | 19 ++++++++-----------
3 files changed, 18 insertions(+), 21 deletions(-)
diff --git a/drivers/nvme/host/fc.c b/drivers/nvme/host/fc.c
index 83131e42b336..16812e427e17 100644
--- a/drivers/nvme/host/fc.c
+++ b/drivers/nvme/host/fc.c
@@ -159,8 +159,6 @@ struct nvme_fc_ctrl {
struct blk_mq_tag_set admin_tag_set;
struct blk_mq_tag_set tag_set;
- struct delayed_work connect_work;
-
struct kref ref;
u32 flags;
u32 iocnt;
@@ -547,7 +545,7 @@ nvme_fc_resume_controller(struct nvme_fc_ctrl *ctrl)
"NVME-FC{%d}: connectivity re-established. "
"Attempting reconnect\n", ctrl->cnum);
- queue_delayed_work(nvme_wq, &ctrl->connect_work, 0);
+ queue_delayed_work(nvme_wq, &ctrl->ctrl.connect_work, 0);
break;
case NVME_CTRL_RESETTING:
@@ -2815,7 +2813,7 @@ nvme_fc_delete_ctrl(struct nvme_ctrl *nctrl)
{
struct nvme_fc_ctrl *ctrl = to_fc_ctrl(nctrl);
- cancel_delayed_work_sync(&ctrl->connect_work);
+ cancel_delayed_work_sync(&ctrl->ctrl.connect_work);
/*
* kill the association on the link side. this will block
* waiting for io to terminate
@@ -2850,7 +2848,7 @@ nvme_fc_reconnect_or_delete(struct nvme_fc_ctrl *ctrl, int status)
else if (time_after(jiffies + recon_delay, rport->dev_loss_end))
recon_delay = rport->dev_loss_end - jiffies;
- queue_delayed_work(nvme_wq, &ctrl->connect_work, recon_delay);
+ queue_delayed_work(nvme_wq, &ctrl->ctrl.connect_work, recon_delay);
} else {
if (portptr->port_state == FC_OBJSTATE_ONLINE)
dev_warn(ctrl->ctrl.device,
@@ -2918,7 +2916,7 @@ nvme_fc_connect_ctrl_work(struct work_struct *work)
struct nvme_fc_ctrl *ctrl =
container_of(to_delayed_work(work),
- struct nvme_fc_ctrl, connect_work);
+ struct nvme_fc_ctrl, ctrl.connect_work);
ret = nvme_fc_create_association(ctrl);
if (ret)
@@ -3015,7 +3013,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
kref_init(&ctrl->ref);
INIT_WORK(&ctrl->ctrl.reset_work, nvme_fc_reset_ctrl_work);
- INIT_DELAYED_WORK(&ctrl->connect_work, nvme_fc_connect_ctrl_work);
+ INIT_DELAYED_WORK(&ctrl->ctrl.connect_work, nvme_fc_connect_ctrl_work);
spin_lock_init(&ctrl->lock);
/* io queue count */
@@ -3086,7 +3084,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
nvme_get_ctrl(&ctrl->ctrl);
- if (!queue_delayed_work(nvme_wq, &ctrl->connect_work, 0)) {
+ if (!queue_delayed_work(nvme_wq, &ctrl->ctrl.connect_work, 0)) {
nvme_put_ctrl(&ctrl->ctrl);
dev_err(ctrl->ctrl.device,
"NVME-FC{%d}: failed to schedule initial connect\n",
@@ -3094,7 +3092,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
goto fail_ctrl;
}
- flush_delayed_work(&ctrl->connect_work);
+ flush_delayed_work(&ctrl->ctrl.connect_work);
dev_info(ctrl->ctrl.device,
"NVME-FC{%d}: new ctrl: NQN \"%s\"\n",
@@ -3105,7 +3103,7 @@ nvme_fc_init_ctrl(struct device *dev, struct nvmf_ctrl_options *opts,
fail_ctrl:
nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_DELETING);
cancel_work_sync(&ctrl->ctrl.reset_work);
- cancel_delayed_work_sync(&ctrl->connect_work);
+ cancel_delayed_work_sync(&ctrl->ctrl.connect_work);
ctrl->ctrl.opts = NULL;
diff --git a/drivers/nvme/host/nvme.h b/drivers/nvme/host/nvme.h
index 27663ce3044e..031195e5d7d3 100644
--- a/drivers/nvme/host/nvme.h
+++ b/drivers/nvme/host/nvme.h
@@ -240,6 +240,8 @@ struct nvme_ctrl {
u16 maxcmd;
int nr_reconnects;
struct nvmf_ctrl_options *opts;
+ struct delayed_work connect_work;
+ struct work_struct err_work;
};
struct nvme_subsystem {
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 4468d672ced9..779c2c043242 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -101,12 +101,9 @@ struct nvme_rdma_ctrl {
/* other member variables */
struct blk_mq_tag_set tag_set;
- struct work_struct err_work;
struct nvme_rdma_qe async_event_sqe;
- struct delayed_work reconnect_work;
-
struct list_head list;
struct blk_mq_tag_set admin_tag_set;
@@ -910,8 +907,8 @@ static void nvme_rdma_stop_ctrl(struct nvme_ctrl *nctrl)
{
struct nvme_rdma_ctrl *ctrl = to_rdma_ctrl(nctrl);
- cancel_work_sync(&ctrl->err_work);
- cancel_delayed_work_sync(&ctrl->reconnect_work);
+ cancel_work_sync(&ctrl->ctrl.err_work);
+ cancel_delayed_work_sync(&ctrl->ctrl.connect_work);
}
static void nvme_rdma_free_ctrl(struct nvme_ctrl *nctrl)
@@ -943,7 +940,7 @@ static void nvme_rdma_reconnect_or_remove(struct nvme_rdma_ctrl *ctrl)
if (nvmf_should_reconnect(&ctrl->ctrl)) {
dev_info(ctrl->ctrl.device, "Reconnecting in %d seconds...\n",
ctrl->ctrl.opts->reconnect_delay);
- queue_delayed_work(nvme_wq, &ctrl->reconnect_work,
+ queue_delayed_work(nvme_wq, &ctrl->ctrl.connect_work,
ctrl->ctrl.opts->reconnect_delay * HZ);
} else {
nvme_delete_ctrl(&ctrl->ctrl);
@@ -1015,7 +1012,7 @@ static int nvme_rdma_setup_ctrl(struct nvme_rdma_ctrl *ctrl, bool new)
static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
{
struct nvme_rdma_ctrl *ctrl = container_of(to_delayed_work(work),
- struct nvme_rdma_ctrl, reconnect_work);
+ struct nvme_rdma_ctrl, ctrl.connect_work);
++ctrl->ctrl.nr_reconnects;
@@ -1038,7 +1035,7 @@ static void nvme_rdma_reconnect_ctrl_work(struct work_struct *work)
static void nvme_rdma_error_recovery_work(struct work_struct *work)
{
struct nvme_rdma_ctrl *ctrl = container_of(work,
- struct nvme_rdma_ctrl, err_work);
+ struct nvme_rdma_ctrl, ctrl.err_work);
nvme_stop_keep_alive(&ctrl->ctrl);
nvme_rdma_teardown_io_queues(ctrl, false);
@@ -1059,7 +1056,7 @@ static void nvme_rdma_error_recovery(struct nvme_rdma_ctrl *ctrl)
if (!nvme_change_ctrl_state(&ctrl->ctrl, NVME_CTRL_RESETTING))
return;
- queue_work(nvme_wq, &ctrl->err_work);
+ queue_work(nvme_wq, &ctrl->ctrl.err_work);
}
static void nvme_rdma_wr_error(struct ib_cq *cq, struct ib_wc *wc,
@@ -1932,9 +1929,9 @@ static struct nvme_ctrl *nvme_rdma_create_ctrl(struct device *dev,
goto out_free_ctrl;
}
- INIT_DELAYED_WORK(&ctrl->reconnect_work,
+ INIT_DELAYED_WORK(&ctrl->ctrl.connect_work,
nvme_rdma_reconnect_ctrl_work);
- INIT_WORK(&ctrl->err_work, nvme_rdma_error_recovery_work);
+ INIT_WORK(&ctrl->ctrl.err_work, nvme_rdma_error_recovery_work);
INIT_WORK(&ctrl->ctrl.reset_work, nvme_rdma_reset_ctrl_work);
ctrl->ctrl.queue_count = opts->nr_io_queues + 1; /* +1 for admin queue */
--
2.17.1
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