xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

IB/hfi1: Enable TID RDMA READ protocol

Browse Source 
This patch enables TID RDMA READ protocol by converting a qualified
RDMA READ request into a TID RDMA READ request internally:
(1) The TID RDMA capability must be enabled;
(2) The request must start on a 4K page boundary and all receiving
 buffers must start on 4K page boundaries;
(3) The request length must be a multiple of 4K and must be larger or
equal to 256K. Each receiving buffer length must be a multiple of 4K.

Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Kaike Wan
2019-01-23 19:32:30 -08:00
committed by Doug Ledford
parent a0b34f75ec
commit f1ab4efa6d
3 changed files with 80 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/hw/hfi1/qp.c
View File

@@ -319,6 +319,7 @@ int hfi1_setup_wqe(struct rvt_qp *qp, struct rvt_swqe *wqe, bool *call_send)
switch (qp->ibqp.qp_type) {
case IB_QPT_RC:
hfi1_setup_tid_rdma_wqe(qp, wqe);
case IB_QPT_UC:
if (wqe->length > 0x80000000U)
return -EINVAL;