| /* |
| * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. |
| * Copyright (c) 2005 Mellanox Technologies. All rights reserved. |
| * Copyright (c) 2006, 2007 Cisco Systems, Inc. All rights reserved. |
| * |
| * This software is available to you under a choice of one of two |
| * licenses. You may choose to be licensed under the terms of the GNU |
| * General Public License (GPL) Version 2, available from the file |
| * COPYING in the main directory of this source tree, or the |
| * OpenIB.org BSD license below: |
| * |
| * Redistribution and use in source and binary forms, with or |
| * without modification, are permitted provided that the following |
| * conditions are met: |
| * |
| * - Redistributions of source code must retain the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer. |
| * |
| * - Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following |
| * disclaimer in the documentation and/or other materials |
| * provided with the distribution. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
| * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
| * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
| * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS |
| * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN |
| * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN |
| * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE |
| * SOFTWARE. |
| */ |
| |
| #include <linux/slab.h> |
| |
| #include "mlx4.h" |
| #include "fw.h" |
| |
| enum { |
| MLX4_RES_QP, |
| MLX4_RES_RDMARC, |
| MLX4_RES_ALTC, |
| MLX4_RES_AUXC, |
| MLX4_RES_SRQ, |
| MLX4_RES_CQ, |
| MLX4_RES_EQ, |
| MLX4_RES_DMPT, |
| MLX4_RES_CMPT, |
| MLX4_RES_MTT, |
| MLX4_RES_MCG, |
| MLX4_RES_NUM |
| }; |
| |
| static const char *res_name[] = { |
| [MLX4_RES_QP] = "QP", |
| [MLX4_RES_RDMARC] = "RDMARC", |
| [MLX4_RES_ALTC] = "ALTC", |
| [MLX4_RES_AUXC] = "AUXC", |
| [MLX4_RES_SRQ] = "SRQ", |
| [MLX4_RES_CQ] = "CQ", |
| [MLX4_RES_EQ] = "EQ", |
| [MLX4_RES_DMPT] = "DMPT", |
| [MLX4_RES_CMPT] = "CMPT", |
| [MLX4_RES_MTT] = "MTT", |
| [MLX4_RES_MCG] = "MCG", |
| }; |
| |
| u64 mlx4_make_profile(struct mlx4_dev *dev, |
| struct mlx4_profile *request, |
| struct mlx4_dev_cap *dev_cap, |
| struct mlx4_init_hca_param *init_hca) |
| { |
| struct mlx4_priv *priv = mlx4_priv(dev); |
| struct mlx4_resource { |
| u64 size; |
| u64 start; |
| int type; |
| u32 num; |
| int log_num; |
| }; |
| |
| u64 total_size = 0; |
| struct mlx4_resource *profile; |
| struct mlx4_resource tmp; |
| struct sysinfo si; |
| int i, j; |
| |
| profile = kcalloc(MLX4_RES_NUM, sizeof(*profile), GFP_KERNEL); |
| if (!profile) |
| return -ENOMEM; |
| |
| /* |
| * We want to scale the number of MTTs with the size of the |
| * system memory, since it makes sense to register a lot of |
| * memory on a system with a lot of memory. As a heuristic, |
| * make sure we have enough MTTs to cover twice the system |
| * memory (with PAGE_SIZE entries). |
| * |
| * This number has to be a power of two and fit into 32 bits |
| * due to device limitations, so cap this at 2^31 as well. |
| * That limits us to 8TB of memory registration per HCA with |
| * 4KB pages, which is probably OK for the next few months. |
| */ |
| si_meminfo(&si); |
| request->num_mtt = |
| roundup_pow_of_two(max_t(unsigned, request->num_mtt, |
| min(1UL << (31 - log_mtts_per_seg), |
| si.totalram >> (log_mtts_per_seg - 1)))); |
| |
| profile[MLX4_RES_QP].size = dev_cap->qpc_entry_sz; |
| profile[MLX4_RES_RDMARC].size = dev_cap->rdmarc_entry_sz; |
| profile[MLX4_RES_ALTC].size = dev_cap->altc_entry_sz; |
| profile[MLX4_RES_AUXC].size = dev_cap->aux_entry_sz; |
| profile[MLX4_RES_SRQ].size = dev_cap->srq_entry_sz; |
| profile[MLX4_RES_CQ].size = dev_cap->cqc_entry_sz; |
| profile[MLX4_RES_EQ].size = dev_cap->eqc_entry_sz; |
| profile[MLX4_RES_DMPT].size = dev_cap->dmpt_entry_sz; |
| profile[MLX4_RES_CMPT].size = dev_cap->cmpt_entry_sz; |
| profile[MLX4_RES_MTT].size = dev_cap->mtt_entry_sz; |
| profile[MLX4_RES_MCG].size = mlx4_get_mgm_entry_size(dev); |
| |
| profile[MLX4_RES_QP].num = request->num_qp; |
| profile[MLX4_RES_RDMARC].num = request->num_qp * request->rdmarc_per_qp; |
| profile[MLX4_RES_ALTC].num = request->num_qp; |
| profile[MLX4_RES_AUXC].num = request->num_qp; |
| profile[MLX4_RES_SRQ].num = request->num_srq; |
| profile[MLX4_RES_CQ].num = request->num_cq; |
| profile[MLX4_RES_EQ].num = mlx4_is_mfunc(dev) ? |
| dev->phys_caps.num_phys_eqs : |
| min_t(unsigned, dev_cap->max_eqs, MAX_MSIX); |
| profile[MLX4_RES_DMPT].num = request->num_mpt; |
| profile[MLX4_RES_CMPT].num = MLX4_NUM_CMPTS; |
| profile[MLX4_RES_MTT].num = request->num_mtt * (1 << log_mtts_per_seg); |
| profile[MLX4_RES_MCG].num = request->num_mcg; |
| |
| for (i = 0; i < MLX4_RES_NUM; ++i) { |
| profile[i].type = i; |
| profile[i].num = roundup_pow_of_two(profile[i].num); |
| profile[i].log_num = ilog2(profile[i].num); |
| profile[i].size *= profile[i].num; |
| profile[i].size = max(profile[i].size, (u64) PAGE_SIZE); |
| } |
| |
| /* |
| * Sort the resources in decreasing order of size. Since they |
| * all have sizes that are powers of 2, we'll be able to keep |
| * resources aligned to their size and pack them without gaps |
| * using the sorted order. |
| */ |
| for (i = MLX4_RES_NUM; i > 0; --i) |
| for (j = 1; j < i; ++j) { |
| if (profile[j].size > profile[j - 1].size) { |
| tmp = profile[j]; |
| profile[j] = profile[j - 1]; |
| profile[j - 1] = tmp; |
| } |
| } |
| |
| for (i = 0; i < MLX4_RES_NUM; ++i) { |
| if (profile[i].size) { |
| profile[i].start = total_size; |
| total_size += profile[i].size; |
| } |
| |
| if (total_size > dev_cap->max_icm_sz) { |
| mlx4_err(dev, "Profile requires 0x%llx bytes; " |
| "won't fit in 0x%llx bytes of context memory.\n", |
| (unsigned long long) total_size, |
| (unsigned long long) dev_cap->max_icm_sz); |
| kfree(profile); |
| return -ENOMEM; |
| } |
| |
| if (profile[i].size) |
| mlx4_dbg(dev, " profile[%2d] (%6s): 2^%02d entries @ 0x%10llx, " |
| "size 0x%10llx\n", |
| i, res_name[profile[i].type], profile[i].log_num, |
| (unsigned long long) profile[i].start, |
| (unsigned long long) profile[i].size); |
| } |
| |
| mlx4_dbg(dev, "HCA context memory: reserving %d KB\n", |
| (int) (total_size >> 10)); |
| |
| for (i = 0; i < MLX4_RES_NUM; ++i) { |
| switch (profile[i].type) { |
| case MLX4_RES_QP: |
| dev->caps.num_qps = profile[i].num; |
| init_hca->qpc_base = profile[i].start; |
| init_hca->log_num_qps = profile[i].log_num; |
| break; |
| case MLX4_RES_RDMARC: |
| for (priv->qp_table.rdmarc_shift = 0; |
| request->num_qp << priv->qp_table.rdmarc_shift < profile[i].num; |
| ++priv->qp_table.rdmarc_shift) |
| ; /* nothing */ |
| dev->caps.max_qp_dest_rdma = 1 << priv->qp_table.rdmarc_shift; |
| priv->qp_table.rdmarc_base = (u32) profile[i].start; |
| init_hca->rdmarc_base = profile[i].start; |
| init_hca->log_rd_per_qp = priv->qp_table.rdmarc_shift; |
| break; |
| case MLX4_RES_ALTC: |
| init_hca->altc_base = profile[i].start; |
| break; |
| case MLX4_RES_AUXC: |
| init_hca->auxc_base = profile[i].start; |
| break; |
| case MLX4_RES_SRQ: |
| dev->caps.num_srqs = profile[i].num; |
| init_hca->srqc_base = profile[i].start; |
| init_hca->log_num_srqs = profile[i].log_num; |
| break; |
| case MLX4_RES_CQ: |
| dev->caps.num_cqs = profile[i].num; |
| init_hca->cqc_base = profile[i].start; |
| init_hca->log_num_cqs = profile[i].log_num; |
| break; |
| case MLX4_RES_EQ: |
| dev->caps.num_eqs = roundup_pow_of_two(min_t(unsigned, dev_cap->max_eqs, |
| MAX_MSIX)); |
| init_hca->eqc_base = profile[i].start; |
| init_hca->log_num_eqs = ilog2(dev->caps.num_eqs); |
| break; |
| case MLX4_RES_DMPT: |
| dev->caps.num_mpts = profile[i].num; |
| priv->mr_table.mpt_base = profile[i].start; |
| init_hca->dmpt_base = profile[i].start; |
| init_hca->log_mpt_sz = profile[i].log_num; |
| break; |
| case MLX4_RES_CMPT: |
| init_hca->cmpt_base = profile[i].start; |
| break; |
| case MLX4_RES_MTT: |
| dev->caps.num_mtts = profile[i].num; |
| priv->mr_table.mtt_base = profile[i].start; |
| init_hca->mtt_base = profile[i].start; |
| break; |
| case MLX4_RES_MCG: |
| init_hca->mc_base = profile[i].start; |
| init_hca->log_mc_entry_sz = |
| ilog2(mlx4_get_mgm_entry_size(dev)); |
| init_hca->log_mc_table_sz = profile[i].log_num; |
| if (dev->caps.steering_mode == |
| MLX4_STEERING_MODE_DEVICE_MANAGED) { |
| dev->caps.num_mgms = profile[i].num; |
| } else { |
| init_hca->log_mc_hash_sz = |
| profile[i].log_num - 1; |
| dev->caps.num_mgms = profile[i].num >> 1; |
| dev->caps.num_amgms = profile[i].num >> 1; |
| } |
| break; |
| default: |
| break; |
| } |
| } |
| |
| /* |
| * PDs don't take any HCA memory, but we assign them as part |
| * of the HCA profile anyway. |
| */ |
| dev->caps.num_pds = MLX4_NUM_PDS; |
| |
| kfree(profile); |
| return total_size; |
| } |
