From 1543e317f1da31b75942316931e8f491a8920811 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Thu, 04 Jan 2024 10:08:02 +0000
Subject: [PATCH] disable FB
---
kernel/drivers/infiniband/sw/rxe/rxe_mr.c | 164 ++++++++++++------------------------------------------
1 files changed, 36 insertions(+), 128 deletions(-)
diff --git a/kernel/drivers/infiniband/sw/rxe/rxe_mr.c b/kernel/drivers/infiniband/sw/rxe/rxe_mr.c
index 375e552..026285f 100644
--- a/kernel/drivers/infiniband/sw/rxe/rxe_mr.c
+++ b/kernel/drivers/infiniband/sw/rxe/rxe_mr.c
@@ -1,34 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/*
* Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
* Copyright (c) 2015 System Fabric Works, 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 "rxe.h"
@@ -79,13 +52,8 @@
u32 lkey = mem->pelem.index << 8 | rxe_get_key();
u32 rkey = (access & IB_ACCESS_REMOTE) ? lkey : 0;
- if (mem->pelem.pool->type == RXE_TYPE_MR) {
- mem->ibmr.lkey = lkey;
- mem->ibmr.rkey = rkey;
- }
-
- mem->lkey = lkey;
- mem->rkey = rkey;
+ mem->ibmr.lkey = lkey;
+ mem->ibmr.rkey = rkey;
mem->state = RXE_MEM_STATE_INVALID;
mem->type = RXE_MEM_TYPE_NONE;
mem->map_shift = ilog2(RXE_BUF_PER_MAP);
@@ -96,8 +64,7 @@
struct rxe_mem *mem = container_of(arg, typeof(*mem), pelem);
int i;
- if (mem->umem)
- ib_umem_release(mem->umem);
+ ib_umem_release(mem->umem);
if (mem->map) {
for (i = 0; i < mem->num_map; i++)
@@ -145,33 +112,30 @@
return -ENOMEM;
}
-int rxe_mem_init_dma(struct rxe_pd *pd,
- int access, struct rxe_mem *mem)
+void rxe_mem_init_dma(struct rxe_pd *pd,
+ int access, struct rxe_mem *mem)
{
rxe_mem_init(access, mem);
- mem->pd = pd;
+ mem->ibmr.pd = &pd->ibpd;
mem->access = access;
mem->state = RXE_MEM_STATE_VALID;
mem->type = RXE_MEM_TYPE_DMA;
-
- return 0;
}
int rxe_mem_init_user(struct rxe_pd *pd, u64 start,
u64 length, u64 iova, int access, struct ib_udata *udata,
struct rxe_mem *mem)
{
- int entry;
struct rxe_map **map;
struct rxe_phys_buf *buf = NULL;
struct ib_umem *umem;
- struct scatterlist *sg;
+ struct sg_page_iter sg_iter;
int num_buf;
void *vaddr;
int err;
- umem = ib_umem_get(pd->ibpd.uobject->context, start, length, access, 0);
+ umem = ib_umem_get(pd->ibpd.device, start, length, access);
if (IS_ERR(umem)) {
pr_warn("err %d from rxe_umem_get\n",
(int)PTR_ERR(umem));
@@ -180,7 +144,7 @@
}
mem->umem = umem;
- num_buf = umem->nmap;
+ num_buf = ib_umem_num_pages(umem);
rxe_mem_init(access, mem);
@@ -191,16 +155,22 @@
goto err1;
}
- mem->page_shift = umem->page_shift;
- mem->page_mask = BIT(umem->page_shift) - 1;
+ mem->page_shift = PAGE_SHIFT;
+ mem->page_mask = PAGE_SIZE - 1;
num_buf = 0;
map = mem->map;
if (length > 0) {
buf = map[0]->buf;
- for_each_sg(umem->sg_head.sgl, sg, umem->nmap, entry) {
- vaddr = page_address(sg_page(sg));
+ for_each_sg_page(umem->sg_head.sgl, &sg_iter, umem->nmap, 0) {
+ if (num_buf >= RXE_BUF_PER_MAP) {
+ map++;
+ buf = map[0]->buf;
+ num_buf = 0;
+ }
+
+ vaddr = page_address(sg_page_iter_page(&sg_iter));
if (!vaddr) {
pr_warn("null vaddr\n");
ib_umem_release(umem);
@@ -209,19 +179,14 @@
}
buf->addr = (uintptr_t)vaddr;
- buf->size = BIT(umem->page_shift);
+ buf->size = PAGE_SIZE;
num_buf++;
buf++;
- if (num_buf >= RXE_BUF_PER_MAP) {
- map++;
- buf = map[0]->buf;
- num_buf = 0;
- }
}
}
- mem->pd = pd;
+ mem->ibmr.pd = &pd->ibpd;
mem->umem = umem;
mem->access = access;
mem->length = length;
@@ -251,7 +216,7 @@
if (err)
goto err1;
- mem->pd = pd;
+ mem->ibmr.pd = &pd->ibpd;
mem->max_buf = max_pages;
mem->state = RXE_MEM_STATE_FREE;
mem->type = RXE_MEM_TYPE_MR;
@@ -371,7 +336,7 @@
memcpy(dest, src, length);
if (crcp)
- *crcp = rxe_crc32(to_rdev(mem->pd->ibpd.device),
+ *crcp = rxe_crc32(to_rdev(mem->ibmr.device),
*crcp, dest, length);
return 0;
@@ -405,7 +370,7 @@
memcpy(dest, src, bytes);
if (crcp)
- crc = rxe_crc32(to_rdev(mem->pd->ibpd.device),
+ crc = rxe_crc32(to_rdev(mem->ibmr.device),
crc, dest, bytes);
length -= bytes;
@@ -574,75 +539,18 @@
struct rxe_dev *rxe = to_rdev(pd->ibpd.device);
int index = key >> 8;
- if (index >= RXE_MIN_MR_INDEX && index <= RXE_MAX_MR_INDEX) {
- mem = rxe_pool_get_index(&rxe->mr_pool, index);
- if (!mem)
- goto err1;
- } else {
- goto err1;
+ mem = rxe_pool_get_index(&rxe->mr_pool, index);
+ if (!mem)
+ return NULL;
+
+ if (unlikely((type == lookup_local && mr_lkey(mem) != key) ||
+ (type == lookup_remote && mr_rkey(mem) != key) ||
+ mr_pd(mem) != pd ||
+ (access && !(access & mem->access)) ||
+ mem->state != RXE_MEM_STATE_VALID)) {
+ rxe_drop_ref(mem);
+ mem = NULL;
}
-
- if ((type == lookup_local && mem->lkey != key) ||
- (type == lookup_remote && mem->rkey != key))
- goto err2;
-
- if (mem->pd != pd)
- goto err2;
-
- if (access && !(access & mem->access))
- goto err2;
-
- if (mem->state != RXE_MEM_STATE_VALID)
- goto err2;
return mem;
-
-err2:
- rxe_drop_ref(mem);
-err1:
- return NULL;
-}
-
-int rxe_mem_map_pages(struct rxe_dev *rxe, struct rxe_mem *mem,
- u64 *page, int num_pages, u64 iova)
-{
- int i;
- int num_buf;
- int err;
- struct rxe_map **map;
- struct rxe_phys_buf *buf;
- int page_size;
-
- if (num_pages > mem->max_buf) {
- err = -EINVAL;
- goto err1;
- }
-
- num_buf = 0;
- page_size = 1 << mem->page_shift;
- map = mem->map;
- buf = map[0]->buf;
-
- for (i = 0; i < num_pages; i++) {
- buf->addr = *page++;
- buf->size = page_size;
- buf++;
- num_buf++;
-
- if (num_buf == RXE_BUF_PER_MAP) {
- map++;
- buf = map[0]->buf;
- num_buf = 0;
- }
- }
-
- mem->iova = iova;
- mem->va = iova;
- mem->length = num_pages << mem->page_shift;
- mem->state = RXE_MEM_STATE_VALID;
-
- return 0;
-
-err1:
- return err;
}
--
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