4e57b68178
I recently picked up my older work to remove unnecessary #includes of sched.h, starting from a patch by Dave Jones to not include sched.h from module.h. This reduces the number of indirect includes of sched.h by ~300. Another ~400 pointless direct includes can be removed after this disentangling (patch to follow later). However, quite a few indirect includes need to be fixed up for this. In order to feed the patches through -mm with as little disturbance as possible, I've split out the fixes I accumulated up to now (complete for i386 and x86_64, more archs to follow later) and post them before the real patch. This way this large part of the patch is kept simple with only adding #includes, and all hunks are independent of each other. So if any hunk rejects or gets in the way of other patches, just drop it. My scripts will pick it up again in the next round. Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
245 lines
6.3 KiB
C
245 lines
6.3 KiB
C
/*
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* Copyright (c) 2004 Topspin Communications. All rights reserved.
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* Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* $Id: mthca_av.c 1349 2004-12-16 21:09:43Z roland $
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*/
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#include <linux/init.h>
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <rdma/ib_verbs.h>
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#include <rdma/ib_cache.h>
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#include "mthca_dev.h"
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struct mthca_av {
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__be32 port_pd;
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u8 reserved1;
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u8 g_slid;
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__be16 dlid;
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u8 reserved2;
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u8 gid_index;
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u8 msg_sr;
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u8 hop_limit;
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__be32 sl_tclass_flowlabel;
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__be32 dgid[4];
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};
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int mthca_create_ah(struct mthca_dev *dev,
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struct mthca_pd *pd,
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struct ib_ah_attr *ah_attr,
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struct mthca_ah *ah)
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{
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u32 index = -1;
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struct mthca_av *av = NULL;
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ah->type = MTHCA_AH_PCI_POOL;
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if (mthca_is_memfree(dev)) {
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ah->av = kmalloc(sizeof *ah->av, GFP_ATOMIC);
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if (!ah->av)
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return -ENOMEM;
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ah->type = MTHCA_AH_KMALLOC;
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av = ah->av;
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} else if (!atomic_read(&pd->sqp_count) &&
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!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
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index = mthca_alloc(&dev->av_table.alloc);
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/* fall back to allocate in host memory */
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if (index == -1)
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goto on_hca_fail;
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av = kmalloc(sizeof *av, GFP_ATOMIC);
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if (!av)
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goto on_hca_fail;
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ah->type = MTHCA_AH_ON_HCA;
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ah->avdma = dev->av_table.ddr_av_base +
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index * MTHCA_AV_SIZE;
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}
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on_hca_fail:
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if (ah->type == MTHCA_AH_PCI_POOL) {
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ah->av = pci_pool_alloc(dev->av_table.pool,
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SLAB_ATOMIC, &ah->avdma);
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if (!ah->av)
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return -ENOMEM;
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av = ah->av;
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}
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ah->key = pd->ntmr.ibmr.lkey;
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memset(av, 0, MTHCA_AV_SIZE);
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av->port_pd = cpu_to_be32(pd->pd_num | (ah_attr->port_num << 24));
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av->g_slid = ah_attr->src_path_bits;
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av->dlid = cpu_to_be16(ah_attr->dlid);
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av->msg_sr = (3 << 4) | /* 2K message */
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ah_attr->static_rate;
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av->sl_tclass_flowlabel = cpu_to_be32(ah_attr->sl << 28);
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if (ah_attr->ah_flags & IB_AH_GRH) {
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av->g_slid |= 0x80;
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av->gid_index = (ah_attr->port_num - 1) * dev->limits.gid_table_len +
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ah_attr->grh.sgid_index;
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av->hop_limit = ah_attr->grh.hop_limit;
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av->sl_tclass_flowlabel |=
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cpu_to_be32((ah_attr->grh.traffic_class << 20) |
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ah_attr->grh.flow_label);
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memcpy(av->dgid, ah_attr->grh.dgid.raw, 16);
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} else {
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/* Arbel workaround -- low byte of GID must be 2 */
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av->dgid[3] = cpu_to_be32(2);
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}
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if (0) {
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int j;
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mthca_dbg(dev, "Created UDAV at %p/%08lx:\n",
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av, (unsigned long) ah->avdma);
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for (j = 0; j < 8; ++j)
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printk(KERN_DEBUG " [%2x] %08x\n",
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j * 4, be32_to_cpu(((__be32 *) av)[j]));
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}
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if (ah->type == MTHCA_AH_ON_HCA) {
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memcpy_toio(dev->av_table.av_map + index * MTHCA_AV_SIZE,
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av, MTHCA_AV_SIZE);
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kfree(av);
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}
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return 0;
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}
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int mthca_destroy_ah(struct mthca_dev *dev, struct mthca_ah *ah)
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{
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switch (ah->type) {
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case MTHCA_AH_ON_HCA:
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mthca_free(&dev->av_table.alloc,
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(ah->avdma - dev->av_table.ddr_av_base) /
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MTHCA_AV_SIZE);
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break;
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case MTHCA_AH_PCI_POOL:
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pci_pool_free(dev->av_table.pool, ah->av, ah->avdma);
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break;
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case MTHCA_AH_KMALLOC:
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kfree(ah->av);
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break;
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}
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return 0;
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}
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int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
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struct ib_ud_header *header)
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{
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if (ah->type == MTHCA_AH_ON_HCA)
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return -EINVAL;
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header->lrh.service_level = be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 28;
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header->lrh.destination_lid = ah->av->dlid;
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header->lrh.source_lid = cpu_to_be16(ah->av->g_slid & 0x7f);
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if (ah->av->g_slid & 0x80) {
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header->grh_present = 1;
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header->grh.traffic_class =
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(be32_to_cpu(ah->av->sl_tclass_flowlabel) >> 20) & 0xff;
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header->grh.flow_label =
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ah->av->sl_tclass_flowlabel & cpu_to_be32(0xfffff);
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ib_get_cached_gid(&dev->ib_dev,
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be32_to_cpu(ah->av->port_pd) >> 24,
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ah->av->gid_index,
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&header->grh.source_gid);
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memcpy(header->grh.destination_gid.raw,
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ah->av->dgid, 16);
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} else {
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header->grh_present = 0;
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}
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return 0;
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}
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int __devinit mthca_init_av_table(struct mthca_dev *dev)
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{
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int err;
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if (mthca_is_memfree(dev))
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return 0;
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err = mthca_alloc_init(&dev->av_table.alloc,
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dev->av_table.num_ddr_avs,
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dev->av_table.num_ddr_avs - 1,
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0);
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if (err)
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return err;
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dev->av_table.pool = pci_pool_create("mthca_av", dev->pdev,
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MTHCA_AV_SIZE,
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MTHCA_AV_SIZE, 0);
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if (!dev->av_table.pool)
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goto out_free_alloc;
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if (!(dev->mthca_flags & MTHCA_FLAG_DDR_HIDDEN)) {
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dev->av_table.av_map = ioremap(pci_resource_start(dev->pdev, 4) +
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dev->av_table.ddr_av_base -
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dev->ddr_start,
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dev->av_table.num_ddr_avs *
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MTHCA_AV_SIZE);
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if (!dev->av_table.av_map)
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goto out_free_pool;
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} else
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dev->av_table.av_map = NULL;
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return 0;
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out_free_pool:
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pci_pool_destroy(dev->av_table.pool);
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out_free_alloc:
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mthca_alloc_cleanup(&dev->av_table.alloc);
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return -ENOMEM;
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}
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void __devexit mthca_cleanup_av_table(struct mthca_dev *dev)
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{
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if (mthca_is_memfree(dev))
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return;
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if (dev->av_table.av_map)
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iounmap(dev->av_table.av_map);
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pci_pool_destroy(dev->av_table.pool);
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mthca_alloc_cleanup(&dev->av_table.alloc);
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}
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