| rw.c (5a6781a558cc3909851c04a0d44e3a87a35aad94) | rw.c (c0a6cbb9cbccffc249743afa16e64f16c46c80b2) |
|---|---|
| 1/* 2 * Copyright (c) 2016 HGST, a Western Digital Company. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT --- 674 unchanged lines hidden (view full) --- 683 */ 684 factor = 1; 685 686 /* 687 * If the devices needs MRs to perform RDMA READ or WRITE operations, 688 * we'll need two additional MRs for the registrations and the 689 * invalidation. 690 */ | 1/* 2 * Copyright (c) 2016 HGST, a Western Digital Company. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms and conditions of the GNU General Public License, 6 * version 2, as published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope it will be useful, but WITHOUT --- 674 unchanged lines hidden (view full) --- 683 */ 684 factor = 1; 685 686 /* 687 * If the devices needs MRs to perform RDMA READ or WRITE operations, 688 * we'll need two additional MRs for the registrations and the 689 * invalidation. 690 */ |
| 691 if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) | 691 if (attr->create_flags & IB_QP_CREATE_INTEGRITY_EN) |
| 692 factor += 6; /* (inv + reg) * (data + prot + sig) */ 693 else if (rdma_rw_can_use_mr(dev, attr->port_num)) 694 factor += 2; /* inv + reg */ 695 696 attr->cap.max_send_wr += factor * attr->cap.max_rdma_ctxs; 697 698 /* 699 * But maybe we were just too high in the sky and the device doesn't --- 4 unchanged lines hidden (view full) --- 704} 705 706int rdma_rw_init_mrs(struct ib_qp *qp, struct ib_qp_init_attr *attr) 707{ 708 struct ib_device *dev = qp->pd->device; 709 u32 nr_mrs = 0, nr_sig_mrs = 0; 710 int ret = 0; 711 | 692 factor += 6; /* (inv + reg) * (data + prot + sig) */ 693 else if (rdma_rw_can_use_mr(dev, attr->port_num)) 694 factor += 2; /* inv + reg */ 695 696 attr->cap.max_send_wr += factor * attr->cap.max_rdma_ctxs; 697 698 /* 699 * But maybe we were just too high in the sky and the device doesn't --- 4 unchanged lines hidden (view full) --- 704} 705 706int rdma_rw_init_mrs(struct ib_qp *qp, struct ib_qp_init_attr *attr) 707{ 708 struct ib_device *dev = qp->pd->device; 709 u32 nr_mrs = 0, nr_sig_mrs = 0; 710 int ret = 0; 711 |
| 712 if (attr->create_flags & IB_QP_CREATE_SIGNATURE_EN) { | 712 if (attr->create_flags & IB_QP_CREATE_INTEGRITY_EN) { |
| 713 nr_sig_mrs = attr->cap.max_rdma_ctxs; 714 nr_mrs = attr->cap.max_rdma_ctxs * 2; 715 } else if (rdma_rw_can_use_mr(dev, attr->port_num)) { 716 nr_mrs = attr->cap.max_rdma_ctxs; 717 } 718 719 if (nr_mrs) { 720 ret = ib_mr_pool_init(qp, &qp->rdma_mrs, nr_mrs, --- 31 unchanged lines hidden --- | 713 nr_sig_mrs = attr->cap.max_rdma_ctxs; 714 nr_mrs = attr->cap.max_rdma_ctxs * 2; 715 } else if (rdma_rw_can_use_mr(dev, attr->port_num)) { 716 nr_mrs = attr->cap.max_rdma_ctxs; 717 } 718 719 if (nr_mrs) { 720 ret = ib_mr_pool_init(qp, &qp->rdma_mrs, nr_mrs, --- 31 unchanged lines hidden --- |