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From: Gal Pressman <galpress@amazon.com>
To: Jason Gunthorpe <jgg@ziepe.ca>, Doug Ledford <dledford@redhat.com>
Cc: <linux-rdma@vger.kernel.org>,
	Alexander Matushevsky <matua@amazon.com>,
	Gal Pressman <galpress@amazon.com>,
	Firas JahJah <firasj@amazon.com>,
	"Yossi Leybovich" <sleybo@amazon.com>
Subject: [PATCH for-next 1/4] RDMA/efa: Add a generic capability check helper
Date: Fri, 31 Jul 2020 09:04:17 +0300
Message-ID: <20200731060420.17053-2-galpress@amazon.com> (raw)
In-Reply-To: <20200731060420.17053-1-galpress@amazon.com>

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

Reviewed-by: Firas JahJah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Gal Pressman <galpress@amazon.com>
---
 drivers/infiniband/hw/efa/efa_verbs.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/infiniband/hw/efa/efa_verbs.c b/drivers/infiniband/hw/efa/efa_verbs.c
index 08313f7c73bc..d5654fecf430 100644
--- a/drivers/infiniband/hw/efa/efa_verbs.c
+++ b/drivers/infiniband/hw/efa/efa_verbs.c
@@ -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))
@@ -220,7 +219,7 @@ 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,
@@ -1369,7 +1368,7 @@ 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) {
-- 
2.27.0


  reply index

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-31  6:04 [PATCH for-next 0/4] SRD RNR retry counter Gal Pressman
2020-07-31  6:04 ` Gal Pressman [this message]
2020-07-31  6:04 ` [PATCH for-next 2/4] RDMA/efa: Be consistent with modify QP bitmask Gal Pressman
2020-07-31  6:04 ` [PATCH for-next 3/4] RDMA/efa: Introduce SRD QP state machine Gal Pressman
2020-07-31  6:04 ` [PATCH for-next 4/4] RDMA/efa: Introduce SRD RNR retry Gal Pressman
2020-08-18 18:00 ` [PATCH for-next 0/4] SRD RNR retry counter Jason Gunthorpe

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