282 lines
9.1 KiB
C
282 lines
9.1 KiB
C
/*
|
|
* Copyright (c) 2004, 2005 Topspin Communications. All rights reserved.
|
|
* Copyright (c) 2005 Mellanox Technologies. 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/module.h>
|
|
#include <linux/moduleparam.h>
|
|
#include <linux/string.h>
|
|
#include <linux/slab.h>
|
|
|
|
#include "mthca_profile.h"
|
|
|
|
enum {
|
|
MTHCA_RES_QP,
|
|
MTHCA_RES_EEC,
|
|
MTHCA_RES_SRQ,
|
|
MTHCA_RES_CQ,
|
|
MTHCA_RES_EQP,
|
|
MTHCA_RES_EEEC,
|
|
MTHCA_RES_EQ,
|
|
MTHCA_RES_RDB,
|
|
MTHCA_RES_MCG,
|
|
MTHCA_RES_MPT,
|
|
MTHCA_RES_MTT,
|
|
MTHCA_RES_UAR,
|
|
MTHCA_RES_UDAV,
|
|
MTHCA_RES_UARC,
|
|
MTHCA_RES_NUM
|
|
};
|
|
|
|
enum {
|
|
MTHCA_NUM_EQS = 32,
|
|
MTHCA_NUM_PDS = 1 << 15
|
|
};
|
|
|
|
s64 mthca_make_profile(struct mthca_dev *dev,
|
|
struct mthca_profile *request,
|
|
struct mthca_dev_lim *dev_lim,
|
|
struct mthca_init_hca_param *init_hca)
|
|
{
|
|
struct mthca_resource {
|
|
u64 size;
|
|
u64 start;
|
|
int type;
|
|
int num;
|
|
int log_num;
|
|
};
|
|
|
|
u64 mem_base, mem_avail;
|
|
s64 total_size = 0;
|
|
struct mthca_resource *profile;
|
|
int i, j;
|
|
|
|
profile = kcalloc(MTHCA_RES_NUM, sizeof(*profile), GFP_KERNEL);
|
|
if (!profile)
|
|
return -ENOMEM;
|
|
|
|
profile[MTHCA_RES_QP].size = dev_lim->qpc_entry_sz;
|
|
profile[MTHCA_RES_EEC].size = dev_lim->eec_entry_sz;
|
|
profile[MTHCA_RES_SRQ].size = dev_lim->srq_entry_sz;
|
|
profile[MTHCA_RES_CQ].size = dev_lim->cqc_entry_sz;
|
|
profile[MTHCA_RES_EQP].size = dev_lim->eqpc_entry_sz;
|
|
profile[MTHCA_RES_EEEC].size = dev_lim->eeec_entry_sz;
|
|
profile[MTHCA_RES_EQ].size = dev_lim->eqc_entry_sz;
|
|
profile[MTHCA_RES_RDB].size = MTHCA_RDB_ENTRY_SIZE;
|
|
profile[MTHCA_RES_MCG].size = MTHCA_MGM_ENTRY_SIZE;
|
|
profile[MTHCA_RES_MPT].size = dev_lim->mpt_entry_sz;
|
|
profile[MTHCA_RES_MTT].size = dev->limits.mtt_seg_size;
|
|
profile[MTHCA_RES_UAR].size = dev_lim->uar_scratch_entry_sz;
|
|
profile[MTHCA_RES_UDAV].size = MTHCA_AV_SIZE;
|
|
profile[MTHCA_RES_UARC].size = request->uarc_size;
|
|
|
|
profile[MTHCA_RES_QP].num = request->num_qp;
|
|
profile[MTHCA_RES_SRQ].num = request->num_srq;
|
|
profile[MTHCA_RES_EQP].num = request->num_qp;
|
|
profile[MTHCA_RES_RDB].num = request->num_qp * request->rdb_per_qp;
|
|
profile[MTHCA_RES_CQ].num = request->num_cq;
|
|
profile[MTHCA_RES_EQ].num = MTHCA_NUM_EQS;
|
|
profile[MTHCA_RES_MCG].num = request->num_mcg;
|
|
profile[MTHCA_RES_MPT].num = request->num_mpt;
|
|
profile[MTHCA_RES_MTT].num = request->num_mtt;
|
|
profile[MTHCA_RES_UAR].num = request->num_uar;
|
|
profile[MTHCA_RES_UARC].num = request->num_uar;
|
|
profile[MTHCA_RES_UDAV].num = request->num_udav;
|
|
|
|
for (i = 0; i < MTHCA_RES_NUM; ++i) {
|
|
profile[i].type = i;
|
|
profile[i].log_num = max(ffs(profile[i].num) - 1, 0);
|
|
profile[i].size *= profile[i].num;
|
|
if (mthca_is_memfree(dev))
|
|
profile[i].size = max(profile[i].size, (u64) PAGE_SIZE);
|
|
}
|
|
|
|
if (mthca_is_memfree(dev)) {
|
|
mem_base = 0;
|
|
mem_avail = dev_lim->hca.arbel.max_icm_sz;
|
|
} else {
|
|
mem_base = dev->ddr_start;
|
|
mem_avail = dev->fw.tavor.fw_start - dev->ddr_start;
|
|
}
|
|
|
|
/*
|
|
* 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 = MTHCA_RES_NUM; i > 0; --i)
|
|
for (j = 1; j < i; ++j) {
|
|
if (profile[j].size > profile[j - 1].size)
|
|
swap(profile[j], profile[j - 1]);
|
|
}
|
|
|
|
for (i = 0; i < MTHCA_RES_NUM; ++i) {
|
|
if (profile[i].size) {
|
|
profile[i].start = mem_base + total_size;
|
|
total_size += profile[i].size;
|
|
}
|
|
if (total_size > mem_avail) {
|
|
mthca_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) mem_avail);
|
|
kfree(profile);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
if (profile[i].size)
|
|
mthca_dbg(dev, "profile[%2d]--%2d/%2d @ 0x%16llx "
|
|
"(size 0x%8llx)\n",
|
|
i, profile[i].type, profile[i].log_num,
|
|
(unsigned long long) profile[i].start,
|
|
(unsigned long long) profile[i].size);
|
|
}
|
|
|
|
if (mthca_is_memfree(dev))
|
|
mthca_dbg(dev, "HCA context memory: reserving %d KB\n",
|
|
(int) (total_size >> 10));
|
|
else
|
|
mthca_dbg(dev, "HCA memory: allocated %d KB/%d KB (%d KB free)\n",
|
|
(int) (total_size >> 10), (int) (mem_avail >> 10),
|
|
(int) ((mem_avail - total_size) >> 10));
|
|
|
|
for (i = 0; i < MTHCA_RES_NUM; ++i) {
|
|
switch (profile[i].type) {
|
|
case MTHCA_RES_QP:
|
|
dev->limits.num_qps = profile[i].num;
|
|
init_hca->qpc_base = profile[i].start;
|
|
init_hca->log_num_qps = profile[i].log_num;
|
|
break;
|
|
case MTHCA_RES_EEC:
|
|
dev->limits.num_eecs = profile[i].num;
|
|
init_hca->eec_base = profile[i].start;
|
|
init_hca->log_num_eecs = profile[i].log_num;
|
|
break;
|
|
case MTHCA_RES_SRQ:
|
|
dev->limits.num_srqs = profile[i].num;
|
|
init_hca->srqc_base = profile[i].start;
|
|
init_hca->log_num_srqs = profile[i].log_num;
|
|
break;
|
|
case MTHCA_RES_CQ:
|
|
dev->limits.num_cqs = profile[i].num;
|
|
init_hca->cqc_base = profile[i].start;
|
|
init_hca->log_num_cqs = profile[i].log_num;
|
|
break;
|
|
case MTHCA_RES_EQP:
|
|
init_hca->eqpc_base = profile[i].start;
|
|
break;
|
|
case MTHCA_RES_EEEC:
|
|
init_hca->eeec_base = profile[i].start;
|
|
break;
|
|
case MTHCA_RES_EQ:
|
|
dev->limits.num_eqs = profile[i].num;
|
|
init_hca->eqc_base = profile[i].start;
|
|
init_hca->log_num_eqs = profile[i].log_num;
|
|
break;
|
|
case MTHCA_RES_RDB:
|
|
for (dev->qp_table.rdb_shift = 0;
|
|
request->num_qp << dev->qp_table.rdb_shift < profile[i].num;
|
|
++dev->qp_table.rdb_shift)
|
|
; /* nothing */
|
|
dev->qp_table.rdb_base = (u32) profile[i].start;
|
|
init_hca->rdb_base = profile[i].start;
|
|
break;
|
|
case MTHCA_RES_MCG:
|
|
dev->limits.num_mgms = profile[i].num >> 1;
|
|
dev->limits.num_amgms = profile[i].num >> 1;
|
|
init_hca->mc_base = profile[i].start;
|
|
init_hca->log_mc_entry_sz = ffs(MTHCA_MGM_ENTRY_SIZE) - 1;
|
|
init_hca->log_mc_table_sz = profile[i].log_num;
|
|
init_hca->mc_hash_sz = 1 << (profile[i].log_num - 1);
|
|
break;
|
|
case MTHCA_RES_MPT:
|
|
dev->limits.num_mpts = profile[i].num;
|
|
dev->mr_table.mpt_base = profile[i].start;
|
|
init_hca->mpt_base = profile[i].start;
|
|
init_hca->log_mpt_sz = profile[i].log_num;
|
|
break;
|
|
case MTHCA_RES_MTT:
|
|
dev->limits.num_mtt_segs = profile[i].num;
|
|
dev->mr_table.mtt_base = profile[i].start;
|
|
init_hca->mtt_base = profile[i].start;
|
|
init_hca->mtt_seg_sz = ffs(dev->limits.mtt_seg_size) - 7;
|
|
break;
|
|
case MTHCA_RES_UAR:
|
|
dev->limits.num_uars = profile[i].num;
|
|
init_hca->uar_scratch_base = profile[i].start;
|
|
break;
|
|
case MTHCA_RES_UDAV:
|
|
dev->av_table.ddr_av_base = profile[i].start;
|
|
dev->av_table.num_ddr_avs = profile[i].num;
|
|
break;
|
|
case MTHCA_RES_UARC:
|
|
dev->uar_table.uarc_size = request->uarc_size;
|
|
dev->uar_table.uarc_base = profile[i].start;
|
|
init_hca->uarc_base = profile[i].start;
|
|
init_hca->log_uarc_sz = ffs(request->uarc_size) - 13;
|
|
init_hca->log_uar_sz = ffs(request->num_uar) - 1;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* PDs don't take any HCA memory, but we assign them as part
|
|
* of the HCA profile anyway.
|
|
*/
|
|
dev->limits.num_pds = MTHCA_NUM_PDS;
|
|
|
|
if (dev->mthca_flags & MTHCA_FLAG_SINAI_OPT &&
|
|
init_hca->log_mpt_sz > 23) {
|
|
mthca_warn(dev, "MPT table too large (requested size 2^%d >= 2^24)\n",
|
|
init_hca->log_mpt_sz);
|
|
mthca_warn(dev, "Disabling memory key throughput optimization.\n");
|
|
dev->mthca_flags &= ~MTHCA_FLAG_SINAI_OPT;
|
|
}
|
|
|
|
/*
|
|
* For Tavor, FMRs use ioremapped PCI memory. For 32 bit
|
|
* systems it may use too much vmalloc space to map all MTT
|
|
* memory, so we reserve some MTTs for FMR access, taking them
|
|
* out of the MR pool. They don't use additional memory, but
|
|
* we assign them as part of the HCA profile anyway.
|
|
*/
|
|
if (mthca_is_memfree(dev) || BITS_PER_LONG == 64)
|
|
dev->limits.fmr_reserved_mtts = 0;
|
|
else
|
|
dev->limits.fmr_reserved_mtts = request->fmr_reserved_mtts;
|
|
|
|
kfree(profile);
|
|
return total_size;
|
|
}
|