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authorSteve Wise <swise@opengridcomputing.com>2015-07-27 18:10:18 -0500
committerDoug Ledford <dledford@redhat.com>2015-08-28 23:02:11 -0400
commit3403051ebbd486a342272a404f16e7f1aca8758e (patch)
tree3c2dc694e9772180332d486d409f172a8f67e22d /include/rdma
parentbc3fe2e3769874dfa8674791e84c4a901ba9e48b (diff)
RDMA/Core: remove rdma_cap_read_multi_sge() helper
This functionality already exists via the max_sge_rd device capability. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'include/rdma')
-rw-r--r--include/rdma/ib_verbs.h28
1 files changed, 0 insertions, 28 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index b0f898e3b2e7..7448a2740287 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -2071,34 +2071,6 @@ static inline bool rdma_cap_eth_ah(const struct ib_device *device, u8 port_num)
}
/**
- * rdma_cap_read_multi_sge - Check if the port of device has the capability
- * RDMA Read Multiple Scatter-Gather Entries.
- * @device: Device to check
- * @port_num: Port number to check
- *
- * iWARP has a restriction that RDMA READ requests may only have a single
- * Scatter/Gather Entry (SGE) in the work request.
- *
- * NOTE: although the linux kernel currently assumes all devices are either
- * single SGE RDMA READ devices or identical SGE maximums for RDMA READs and
- * WRITEs, according to Tom Talpey, this is not accurate. There are some
- * devices out there that support more than a single SGE on RDMA READ
- * requests, but do not support the same number of SGEs as they do on
- * RDMA WRITE requests. The linux kernel would need rearchitecting to
- * support these imbalanced READ/WRITE SGEs allowed devices. So, for now,
- * suffice with either the device supports the same READ/WRITE SGEs, or
- * it only gets one READ sge.
- *
- * Return: true for any device that allows more than one SGE in RDMA READ
- * requests.
- */
-static inline bool rdma_cap_read_multi_sge(struct ib_device *device,
- u8 port_num)
-{
- return !(device->port_immutable[port_num].core_cap_flags & RDMA_CORE_CAP_PROT_IWARP);
-}
-
-/**
* rdma_max_mad_size - Return the max MAD size required by this RDMA Port.
*
* @device: Device

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