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| author | Yixian Liu <liuyixian@huawei.com> | 2021-03-27 18:25:37 +0800 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-04-01 16:16:13 -0300 |
| commit | cf8cd4ccb269dbd57c3792799d0e5251547d6734 (patch) | |
| tree | 1ea77dce892409bb37184cd8c07a612f2a54f281 /drivers/infiniband/hw/hns/hns_roce_main.c | |
| parent | 8115f974456218e589c681bdf6e4fb854726fc1e (diff) | |
| download | linux-cf8cd4ccb269dbd57c3792799d0e5251547d6734.tar.gz linux-cf8cd4ccb269dbd57c3792799d0e5251547d6734.tar.bz2 linux-cf8cd4ccb269dbd57c3792799d0e5251547d6734.zip | |
RDMA/hns: Support configuring doorbell mode of RQ and CQ
HIP08 supports both normal and record doorbell mode for RQ and CQ, SQ
record doorbell for userspace is also supported by the software for
flushing CQE process. As now the capability of HIP08 are exposed to the
user and are configurable, the support of normal doorbell should be added
back.
Note that, if switching to normal doorbell, the kernel will report "flush
cqe is unsupported" if modify qp to error status as the flush is based on
record doorbell.
Link: https://lore.kernel.org/r/1616840738-7866-2-git-send-email-liweihang@huawei.com
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_main.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_main.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index a3e8bd9e2197..6c6e82b11d8b 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -309,7 +309,8 @@ static int hns_roce_alloc_ucontext(struct ib_ucontext *uctx, if (ret) goto error_fail_uar_alloc; - if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) { + if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_CQ_RECORD_DB || + hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) { INIT_LIST_HEAD(&context->page_list); mutex_init(&context->page_mutex); } @@ -729,7 +730,8 @@ static int hns_roce_setup_hca(struct hns_roce_dev *hr_dev) spin_lock_init(&hr_dev->sm_lock); spin_lock_init(&hr_dev->bt_cmd_lock); - if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) { + if (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_CQ_RECORD_DB || + hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_QP_RECORD_DB) { INIT_LIST_HEAD(&hr_dev->pgdir_list); mutex_init(&hr_dev->pgdir_mutex); } |