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RDMA/efa: Add a generic capability check helper 

Instead of adding a new function for each capability added, introduce a
generic helper to query device capabilities.

Link: https://lore.kernel.org/r/20200731060420.17053-2-galpress@amazon.com
Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Gal Pressman 2020-07-31 09:04:17 +03:00 committed by Jason Gunthorpe
parent d6673746d6
commit 34eb009ffe
1 changed files with 5 additions and 6 deletions
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11
drivers/infiniband/hw/efa/efa_verbs.c
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@ -142,10 +142,9 @@ to_emmap(struct rdma_user_mmap_entry *rdma_entry)
return container_of(rdma_entry, struct efa_user_mmap_entry, rdma_entry);
}
static inline bool is_rdma_read_cap(struct efa_dev *dev)
{
return dev->dev_attr.device_caps & EFA_ADMIN_FEATURE_DEVICE_ATTR_DESC_RDMA_READ_MASK;
}
#define EFA_DEV_CAP(dev, cap) \
((dev)->dev_attr.device_caps & \
EFA_ADMIN_FEATURE_DEVICE_ATTR_DESC_##cap##_MASK)
#define is_reserved_cleared(reserved) \
!memchr_inv(reserved, 0, sizeof(reserved))
@ -221,7 +220,7 @@ int efa_query_device(struct ib_device *ibdev,
resp.max_rq_wr = dev_attr->max_rq_depth;
resp.max_rdma_size = dev_attr->max_rdma_size;
if (is_rdma_read_cap(dev))
if (EFA_DEV_CAP(dev, RDMA_READ))
resp.device_caps |= EFA_QUERY_DEVICE_CAPS_RDMA_READ;
err = ib_copy_to_udata(udata, &resp,
@ -1370,7 +1369,7 @@ struct ib_mr *efa_reg_mr(struct ib_pd *ibpd, u64 start, u64 length,
supp_access_flags =
IB_ACCESS_LOCAL_WRITE |
(is_rdma_read_cap(dev) ? IB_ACCESS_REMOTE_READ : 0);
(EFA_DEV_CAP(dev, RDMA_READ) ? IB_ACCESS_REMOTE_READ : 0);
access_flags &= ~IB_ACCESS_OPTIONAL;
if (access_flags & ~supp_access_flags) {