diff options
| author |   Yixian Liu <liuyixian@huawei.com> | 2018-03-15 15:23:14 +0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2018-03-15 15:34:26 -0600 |
| commit | 7b48221cf41a90cf4bfc36e6d699b7fa4169c970 (patch) | |
| tree | 1389bc25e0ed6f4a9e34a1f05f3e0df07d356119 /drivers/infiniband/hw/hns/hns_roce_cq.c | |
| parent | IB/core: Move rdma_addr_find_l2_eth_by_grh to core_priv.h (diff) | |
| download | linux-dev-7b48221cf41a90cf4bfc36e6d699b7fa4169c970.tar.xz linux-dev-7b48221cf41a90cf4bfc36e6d699b7fa4169c970.zip | |
RDMA/hns: Fix cqn type and init resp
This patch changes the type of cqn from u32 to u64 to keep
userspace and kernel consistent, initializes resp both for
cq and qp to zeros, and also changes the condition judgment
of outlen considering future caps extension.
Suggested-by: Jason Gunthorpe <jgg@mellanox.com>
Fixes: e088a685eae9 (hns: Support rq record doorbell for the user space)
Fixes: 9b44703d0a21 (hns: Support cq record doorbell for the user space)
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hns/hns_roce_cq.c')
| -rw-r--r-- | drivers/infiniband/hw/hns/hns_roce_cq.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c index 462b644bbbd7..095a9100717d 100644 --- a/drivers/infiniband/hw/hns/hns_roce_cq.c +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -315,7 +315,7 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, struct hns_roce_dev *hr_dev = to_hr_dev(ib_dev); struct device *dev = hr_dev->dev; struct hns_roce_ib_create_cq ucmd; - struct hns_roce_ib_create_cq_resp resp; + struct hns_roce_ib_create_cq_resp resp = {}; struct hns_roce_cq *hr_cq = NULL; struct hns_roce_uar *uar = NULL; int vector = attr->comp_vector; @@ -389,7 +389,7 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, } if (context && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp))) { + (udata->outlen >= sizeof(resp))) { ret = hns_roce_db_map_user(to_hr_ucontext(context), ucmd.db_addr, &hr_cq->db); if (ret) { @@ -413,15 +413,14 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, hr_cq->cq_depth = cq_entries; if (context) { + resp.cqn = hr_cq->cqn; if ((hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp))) { + (udata->outlen >= sizeof(resp))) { hr_cq->db_en = 1; - resp.cqn = hr_cq->cqn; resp.cap_flags |= HNS_ROCE_SUPPORT_CQ_RECORD_DB; - ret = ib_copy_to_udata(udata, &resp, sizeof(resp)); - } else - ret = ib_copy_to_udata(udata, &hr_cq->cqn, sizeof(u64)); + } + ret = ib_copy_to_udata(udata, &resp, sizeof(resp)); if (ret) goto err_dbmap; } @@ -430,7 +429,7 @@ struct ib_cq *hns_roce_ib_create_cq(struct ib_device *ib_dev, err_dbmap: if (context && (hr_dev->caps.flags & HNS_ROCE_CAP_FLAG_RECORD_DB) && - (udata->outlen == sizeof(resp))) + (udata->outlen >= sizeof(resp))) hns_roce_db_unmap_user(to_hr_ucontext(context), &hr_cq->db); |