diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-15 12:03:32 -0800 |
---|---|---|
committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-12-15 12:03:32 -0800 |
commit | 4d5b57e05a67c3cfd8e2b2a64ca356245a15b1c6 (patch) | |
tree | d8f3ea3bc3ccfe289f414bbe9a4bdd1e935d9228 /drivers/infiniband/hw/hfi1/iowait.h | |
parent | 6df8b74b1720db1133ace0861cb6721bfe57819a (diff) | |
parent | 6f94ba20799b98c8badf047b184fb4cd7bc45e44 (diff) | |
download | talos-obmc-linux-4d5b57e05a67c3cfd8e2b2a64ca356245a15b1c6.tar.gz talos-obmc-linux-4d5b57e05a67c3cfd8e2b2a64ca356245a15b1c6.zip |
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma
Pull rdma updates from Doug Ledford:
"This is the complete update for the rdma stack for this release cycle.
Most of it is typical driver and core updates, but there is the
entirely new VMWare pvrdma driver. You may have noticed that there
were changes in DaveM's pull request to the bnxt Ethernet driver to
support a RoCE RDMA driver. The bnxt_re driver was tentatively set to
be pulled in this release cycle, but it simply wasn't ready in time
and was dropped (a few review comments still to address, and some
multi-arch build issues like prefetch() not working across all
arches).
Summary:
- shared mlx5 updates with net stack (will drop out on merge if
Dave's tree has already been merged)
- driver updates: cxgb4, hfi1, hns-roce, i40iw, mlx4, mlx5, qedr, rxe
- debug cleanups
- new connection rejection helpers
- SRP updates
- various misc fixes
- new paravirt driver from vmware"
* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (210 commits)
IB: Add vmw_pvrdma driver
IB/mlx4: fix improper return value
IB/ocrdma: fix bad initialization
infiniband: nes: return value of skb_linearize should be handled
MAINTAINERS: Update Intel RDMA RNIC driver maintainers
MAINTAINERS: Remove Mitesh Ahuja from emulex maintainers
IB/core: fix unmap_sg argument
qede: fix general protection fault may occur on probe
IB/mthca: Replace pci_pool_alloc by pci_pool_zalloc
mlx5, calc_sq_size(): Make a debug message more informative
mlx5: Remove a set-but-not-used variable
mlx5: Use { } instead of { 0 } to init struct
IB/srp: Make writing the add_target sysfs attr interruptible
IB/srp: Make mapping failures easier to debug
IB/srp: Make login failures easier to debug
IB/srp: Introduce a local variable in srp_add_one()
IB/srp: Fix CONFIG_DYNAMIC_DEBUG=n build
IB/multicast: Check ib_find_pkey() return value
IPoIB: Avoid reading an uninitialized member variable
IB/mad: Fix an array index check
...
Diffstat (limited to 'drivers/infiniband/hw/hfi1/iowait.h')
-rw-r--r-- | drivers/infiniband/hw/hfi1/iowait.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/iowait.h b/drivers/infiniband/hw/hfi1/iowait.h index 2ec6ef38d389..d9740ddea6f1 100644 --- a/drivers/infiniband/hw/hfi1/iowait.h +++ b/drivers/infiniband/hw/hfi1/iowait.h @@ -64,6 +64,7 @@ struct sdma_engine; /** * struct iowait - linkage for delayed progress/waiting * @list: used to add/insert into QP/PQ wait lists + * @lock: uses to record the list head lock * @tx_head: overflow list of sdma_txreq's * @sleep: no space callback * @wakeup: space callback wakeup @@ -91,6 +92,11 @@ struct sdma_engine; * so sleeping is not allowed. * * The wait_dma member along with the iow + * + * The lock field is used by waiters to record + * the seqlock_t that guards the list head. + * Waiters explicity know that, but the destroy + * code that unwaits QPs does not. */ struct iowait { @@ -103,6 +109,7 @@ struct iowait { unsigned seq); void (*wakeup)(struct iowait *wait, int reason); void (*sdma_drained)(struct iowait *wait); + seqlock_t *lock; struct work_struct iowork; wait_queue_head_t wait_dma; wait_queue_head_t wait_pio; @@ -141,6 +148,7 @@ static inline void iowait_init( void (*sdma_drained)(struct iowait *wait)) { wait->count = 0; + wait->lock = NULL; INIT_LIST_HEAD(&wait->list); INIT_LIST_HEAD(&wait->tx_head); INIT_WORK(&wait->iowork, func); |