mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-25 18:30:06 +00:00
![Chengchang Tang](/assets/img/avatar_default.png)
HIP06 is no longer supported. In order to reduce unnecessary maintenance, the code of HIP06 is removed. Link: https://lore.kernel.org/r/20211220130558.61585-1-liangwenpeng@huawei.com Signed-off-by: Chengchang Tang <tangchengchang@huawei.com> Signed-off-by: Wenpeng Liang <liangwenpeng@huawei.com> Reviewed-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
/*
|
|
* Copyright (c) 2016 Hisilicon Limited.
|
|
*
|
|
* 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/pci.h>
|
|
#include <rdma/ib_addr.h>
|
|
#include <rdma/ib_cache.h>
|
|
#include "hns_roce_device.h"
|
|
|
|
static inline u16 get_ah_udp_sport(const struct rdma_ah_attr *ah_attr)
|
|
{
|
|
u32 fl = ah_attr->grh.flow_label;
|
|
u16 sport;
|
|
|
|
if (!fl)
|
|
sport = get_random_u32() %
|
|
(IB_ROCE_UDP_ENCAP_VALID_PORT_MAX + 1 -
|
|
IB_ROCE_UDP_ENCAP_VALID_PORT_MIN) +
|
|
IB_ROCE_UDP_ENCAP_VALID_PORT_MIN;
|
|
else
|
|
sport = rdma_flow_label_to_udp_sport(fl);
|
|
|
|
return sport;
|
|
}
|
|
|
|
int hns_roce_create_ah(struct ib_ah *ibah, struct rdma_ah_init_attr *init_attr,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct rdma_ah_attr *ah_attr = init_attr->ah_attr;
|
|
const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
|
|
struct hns_roce_dev *hr_dev = to_hr_dev(ibah->device);
|
|
struct hns_roce_ah *ah = to_hr_ah(ibah);
|
|
int ret = 0;
|
|
|
|
if (hr_dev->pci_dev->revision == PCI_REVISION_ID_HIP08 && udata)
|
|
return -EOPNOTSUPP;
|
|
|
|
ah->av.port = rdma_ah_get_port_num(ah_attr);
|
|
ah->av.gid_index = grh->sgid_index;
|
|
|
|
if (rdma_ah_get_static_rate(ah_attr))
|
|
ah->av.stat_rate = IB_RATE_10_GBPS;
|
|
|
|
ah->av.hop_limit = grh->hop_limit;
|
|
ah->av.flowlabel = grh->flow_label;
|
|
ah->av.udp_sport = get_ah_udp_sport(ah_attr);
|
|
ah->av.sl = rdma_ah_get_sl(ah_attr);
|
|
ah->av.tclass = get_tclass(grh);
|
|
|
|
memcpy(ah->av.dgid, grh->dgid.raw, HNS_ROCE_GID_SIZE);
|
|
memcpy(ah->av.mac, ah_attr->roce.dmac, ETH_ALEN);
|
|
|
|
/* HIP08 needs to record vlan info in Address Vector */
|
|
if (hr_dev->pci_dev->revision == PCI_REVISION_ID_HIP08) {
|
|
ret = rdma_read_gid_l2_fields(ah_attr->grh.sgid_attr,
|
|
&ah->av.vlan_id, NULL);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ah->av.vlan_en = ah->av.vlan_id < VLAN_N_VID;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
int hns_roce_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)
|
|
{
|
|
struct hns_roce_ah *ah = to_hr_ah(ibah);
|
|
|
|
memset(ah_attr, 0, sizeof(*ah_attr));
|
|
|
|
rdma_ah_set_sl(ah_attr, ah->av.sl);
|
|
rdma_ah_set_port_num(ah_attr, ah->av.port);
|
|
rdma_ah_set_static_rate(ah_attr, ah->av.stat_rate);
|
|
rdma_ah_set_grh(ah_attr, NULL, ah->av.flowlabel,
|
|
ah->av.gid_index, ah->av.hop_limit, ah->av.tclass);
|
|
rdma_ah_set_dgid_raw(ah_attr, ah->av.dgid);
|
|
|
|
return 0;
|
|
}
|