Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

Pull rdma updates from Doug Ledford:
 "This is a fairly plain pull request. Lots of driver updates across the
  stack, a huge number of static analysis cleanups including a close to
  50 patch series from Bart Van Assche, and a number of new features
  inside the stack such as general CQ moderation support.

  Nothing really stands out, but there might be a few conflicts as you
  take things in. In particular, the cleanups touched some of the same
  lines as the new timer_setup changes.

  Everything in this pull request has been through 0day and at least two
  days of linux-next (since Stephen doesn't necessarily flag new
  errors/warnings until day2). A few more items (about 30 patches) from
  Intel and Mellanox showed up on the list on Tuesday. I've excluded
  those from this pull request, and I'm sure some of them qualify as
  fixes suitable to send any time, but I still have to review them
  fully. If they contain mostly fixes and little or no new development,
  then I will probably send them through by the end of the week just to
  get them out of the way.

  There was a break in my acceptance of patches which coincides with the
  computer problems I had, and then when I got things mostly back under
  control I had a backlog of patches to process, which I did mostly last
  Friday and Monday. So there is a larger number of patches processed in
  that timeframe than I was striving for.

  Summary:
   - Add iWARP support to qedr driver
   - Lots of misc fixes across subsystem
   - Multiple update series to hns roce driver
   - Multiple update series to hfi1 driver
   - Updates to vnic driver
   - Add kref to wait struct in cxgb4 driver
   - Updates to i40iw driver
   - Mellanox shared pull request
   - timer_setup changes
   - massive cleanup series from Bart Van Assche
   - Two series of SRP/SRPT changes from Bart Van Assche
   - Core updates from Mellanox
   - i40iw updates
   - IPoIB updates
   - mlx5 updates
   - mlx4 updates
   - hns updates
   - bnxt_re fixes
   - PCI write padding support
   - Sparse/Smatch/warning cleanups/fixes
   - CQ moderation support
   - SRQ support in vmw_pvrdma"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (296 commits)
  RDMA/core: Rename kernel modify_cq to better describe its usage
  IB/mlx5: Add CQ moderation capability to query_device
  IB/mlx4: Add CQ moderation capability to query_device
  IB/uverbs: Add CQ moderation capability to query_device
  IB/mlx5: Exposing modify CQ callback to uverbs layer
  IB/mlx4: Exposing modify CQ callback to uverbs layer
  IB/uverbs: Allow CQ moderation with modify CQ
  iw_cxgb4: atomically flush the qp
  iw_cxgb4: only call the cq comp_handler when the cq is armed
  iw_cxgb4: Fix possible circular dependency locking warning
  RDMA/bnxt_re: report vlan_id and sl in qp1 recv completion
  IB/core: Only maintain real QPs in the security lists
  IB/ocrdma_hw: remove unnecessary code in ocrdma_mbx_dealloc_lkey
  RDMA/core: Make function rdma_copy_addr return void
  RDMA/vmw_pvrdma: Add shared receive queue support
  RDMA/core: avoid uninitialized variable warning in create_udata
  RDMA/bnxt_re: synchronize poll_cq and req_notify_cq verbs
  RDMA/bnxt_re: Flush CQ notification Work Queue before destroying QP
  RDMA/bnxt_re: Set QP state in case of response completion errors
  RDMA/bnxt_re: Add memory barriers when processing CQ/EQ entries
  ...

3 files changed, 8 insertions, 8 deletions

diff --git a/drivers/infiniband/sw/rdmavt/Kconfig b/drivers/infiniband/sw/rdmavt/Kconfig
index fdd001ce13d8..2b5513da7e83 100644
--- a/drivers/infiniband/sw/rdmavt/Kconfig
+++ b/drivers/infiniband/sw/rdmavt/Kconfig
@@ -1,6 +1,7 @@
 config INFINIBAND_RDMAVT
 	tristate "RDMA verbs transport library"
 	depends on 64BIT
+	depends on PCI
 	select DMA_VIRT_OPS
 	---help---
 	This is a common software verbs provider for RDMA networks.
diff --git a/drivers/infiniband/sw/rdmavt/mcast.c b/drivers/infiniband/sw/rdmavt/mcast.c
index 1f12b69a0d07..b3a38c5e4cad 100644
--- a/drivers/infiniband/sw/rdmavt/mcast.c
+++ b/drivers/infiniband/sw/rdmavt/mcast.c
@@ -351,7 +351,7 @@ int rvt_detach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
 	int last = 0;
 	int ret = 0;
 
-	if (ibqp->qp_num <= 1 || qp->state == IB_QPS_RESET)
+	if (ibqp->qp_num <= 1)
 		return -EINVAL;
 
 	spin_lock_irq(&ibp->lock);
diff --git a/drivers/infiniband/sw/rdmavt/qp.c b/drivers/infiniband/sw/rdmavt/qp.c
index b670cb9d2006..410025a19729 100644
--- a/drivers/infiniband/sw/rdmavt/qp.c
+++ b/drivers/infiniband/sw/rdmavt/qp.c
@@ -57,7 +57,7 @@
 #include "vt.h"
 #include "trace.h"
 
-static void rvt_rc_timeout(unsigned long arg);
+static void rvt_rc_timeout(struct timer_list *t);
 
 /*
  * Convert the AETH RNR timeout code into the number of microseconds.
@@ -717,7 +717,6 @@ static void rvt_reset_qp(struct rvt_dev_info *rdi, struct rvt_qp *qp,
 
 		/* take qp out the hash and wait for it to be unused */
 		rvt_remove_qp(rdi, qp);
-		wait_event(qp->wait, !atomic_read(&qp->refcount));
 
 		/* grab the lock b/c it was locked at call time */
 		spin_lock_irq(&qp->r_lock);
@@ -807,6 +806,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		if (init_attr->port_num == 0 ||
 		    init_attr->port_num > ibpd->device->phys_port_cnt)
 			return ERR_PTR(-EINVAL);
+		/* fall through */
 	case IB_QPT_UC:
 	case IB_QPT_RC:
 	case IB_QPT_UD:
@@ -845,7 +845,7 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 				goto bail_qp;
 		}
 		/* initialize timers needed for rc qp */
-		setup_timer(&qp->s_timer, rvt_rc_timeout, (unsigned long)qp);
+		timer_setup(&qp->s_timer, rvt_rc_timeout, 0);
 		hrtimer_init(&qp->s_rnr_timer, CLOCK_MONOTONIC,
 			     HRTIMER_MODE_REL);
 		qp->s_rnr_timer.function = rvt_rc_rnr_retry;
@@ -894,8 +894,6 @@ struct ib_qp *rvt_create_qp(struct ib_pd *ibpd,
 		atomic_set(&qp->refcount, 0);
 		atomic_set(&qp->local_ops_pending, 0);
 		init_waitqueue_head(&qp->wait);
-		init_timer(&qp->s_timer);
-		qp->s_timer.data = (unsigned long)qp;
 		INIT_LIST_HEAD(&qp->rspwait);
 		qp->state = IB_QPS_RESET;
 		qp->s_wq = swq;
@@ -1443,6 +1441,7 @@ int rvt_destroy_qp(struct ib_qp *ibqp)
 	spin_unlock(&qp->s_hlock);
 	spin_unlock_irq(&qp->r_lock);
 
+	wait_event(qp->wait, !atomic_read(&qp->refcount));
 	/* qpn is now available for use again */
 	rvt_free_qpn(&rdi->qp_dev->qpn_table, qp->ibqp.qp_num);
 
@@ -2132,9 +2131,9 @@ EXPORT_SYMBOL(rvt_del_timers_sync);
 /**
  * This is called from s_timer for missing responses.
  */
-static void rvt_rc_timeout(unsigned long arg)
+static void rvt_rc_timeout(struct timer_list *t)
 {
-	struct rvt_qp *qp = (struct rvt_qp *)arg;
+	struct rvt_qp *qp = from_timer(qp, t, s_timer);
 	struct rvt_dev_info *rdi = ib_to_rvt(qp->ibqp.device);
 	unsigned long flags;