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authorChuck Lever <chuck.lever@oracle.com>2020-01-03 19:56:27 +0300
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2020-01-15 18:54:32 +0300
commit2e87036814290887a188652a893ab968bad9fad7 (patch)
tree7f291dd0a63e2f76441fba38f9bf6a3ee599482f /net/sunrpc/xprtrdma/frwr_ops.c
parente0b27d98bfed9cd9a22f96996bab24858646883d (diff)
downloadlinux-2e87036814290887a188652a893ab968bad9fad7.tar.xz
xprtrdma: Eliminate ri_max_send_sges
Clean-up. The max_send_sge value also happens to be stored in ep->rep_attr. Let's keep just a single copy. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/frwr_ops.c')
-rw-r--r--net/sunrpc/xprtrdma/frwr_ops.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/frwr_ops.c b/net/sunrpc/xprtrdma/frwr_ops.c
index 523722be6a16..859c301d9d30 100644
--- a/net/sunrpc/xprtrdma/frwr_ops.c
+++ b/net/sunrpc/xprtrdma/frwr_ops.c
@@ -190,6 +190,16 @@ int frwr_open(struct rpcrdma_ia *ia, struct rpcrdma_ep *ep)
{
struct ib_device_attr *attrs = &ia->ri_id->device->attrs;
int max_qp_wr, depth, delta;
+ unsigned int max_sge;
+
+ max_sge = min_t(unsigned int, attrs->max_send_sge,
+ RPCRDMA_MAX_SEND_SGES);
+ if (max_sge < RPCRDMA_MIN_SEND_SGES) {
+ pr_err("rpcrdma: HCA provides only %u send SGEs\n", max_sge);
+ return -ENOMEM;
+ }
+ ep->rep_attr.cap.max_send_sge = max_sge;
+ ep->rep_attr.cap.max_recv_sge = 1;
ia->ri_mrtype = IB_MR_TYPE_MEM_REG;
if (attrs->device_cap_flags & IB_DEVICE_SG_GAPS_REG)