mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-10-06 00:39:48 +00:00
13ca970e36
In order to support the scalability of the hardware version, the
features irrelevant to the hardware will be located in the hns-roce.ko,
and the hardware relevant operations will be located in hns_roce_hw_v1.ko
or hns_roce_hw_v2.ko based on the series chips.
The hip08 RoCE engine is a PCI device, hip06 RoCE engine is a platform
device. In order to support both platform device and PCI device, We
replace &hr_dev->pdev->dev with hr_dev->dev in hns-roce.ko as belows:
Before modification:
struct device *dev = hr_dev->dev;
After modification:
struct device *dev = &hr_dev->pdev->dev;
The related structure:
struct hns_roce_dev {
...
struct platform_device *pdev;
struct pci_dev *pci_dev;
struct device *dev;
...
}
Signed-off-by: Lijun Ou <oulijun@huawei.com>
Signed-off-by: Shaobo Xu <xushaobo2@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
139 lines
4.1 KiB
C
139 lines
4.1 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/platform_device.h>
|
|
#include <rdma/ib_addr.h>
|
|
#include <rdma/ib_cache.h>
|
|
#include "hns_roce_device.h"
|
|
|
|
#define HNS_ROCE_PORT_NUM_SHIFT 24
|
|
#define HNS_ROCE_VLAN_SL_BIT_MASK 7
|
|
#define HNS_ROCE_VLAN_SL_SHIFT 13
|
|
|
|
struct ib_ah *hns_roce_create_ah(struct ib_pd *ibpd,
|
|
struct rdma_ah_attr *ah_attr,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct hns_roce_dev *hr_dev = to_hr_dev(ibpd->device);
|
|
struct device *dev = hr_dev->dev;
|
|
struct ib_gid_attr gid_attr;
|
|
struct hns_roce_ah *ah;
|
|
u16 vlan_tag = 0xffff;
|
|
struct in6_addr in6;
|
|
const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr);
|
|
union ib_gid sgid;
|
|
int ret;
|
|
|
|
ah = kzalloc(sizeof(*ah), GFP_ATOMIC);
|
|
if (!ah)
|
|
return ERR_PTR(-ENOMEM);
|
|
|
|
/* Get mac address */
|
|
memcpy(&in6, grh->dgid.raw, sizeof(grh->dgid.raw));
|
|
if (rdma_is_multicast_addr(&in6)) {
|
|
rdma_get_mcast_mac(&in6, ah->av.mac);
|
|
} else {
|
|
u8 *dmac = rdma_ah_retrieve_dmac(ah_attr);
|
|
|
|
if (!dmac) {
|
|
kfree(ah);
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
memcpy(ah->av.mac, dmac, ETH_ALEN);
|
|
}
|
|
|
|
/* Get source gid */
|
|
ret = ib_get_cached_gid(ibpd->device, rdma_ah_get_port_num(ah_attr),
|
|
grh->sgid_index, &sgid, &gid_attr);
|
|
if (ret) {
|
|
dev_err(dev, "get sgid failed! ret = %d\n", ret);
|
|
kfree(ah);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
if (gid_attr.ndev) {
|
|
if (is_vlan_dev(gid_attr.ndev))
|
|
vlan_tag = vlan_dev_vlan_id(gid_attr.ndev);
|
|
dev_put(gid_attr.ndev);
|
|
}
|
|
|
|
if (vlan_tag < 0x1000)
|
|
vlan_tag |= (rdma_ah_get_sl(ah_attr) &
|
|
HNS_ROCE_VLAN_SL_BIT_MASK) <<
|
|
HNS_ROCE_VLAN_SL_SHIFT;
|
|
|
|
ah->av.port_pd = cpu_to_be32(to_hr_pd(ibpd)->pdn |
|
|
(rdma_ah_get_port_num(ah_attr) <<
|
|
HNS_ROCE_PORT_NUM_SHIFT));
|
|
ah->av.gid_index = grh->sgid_index;
|
|
ah->av.vlan = cpu_to_le16(vlan_tag);
|
|
dev_dbg(dev, "gid_index = 0x%x,vlan = 0x%x\n", ah->av.gid_index,
|
|
ah->av.vlan);
|
|
|
|
if (rdma_ah_get_static_rate(ah_attr))
|
|
ah->av.stat_rate = IB_RATE_10_GBPS;
|
|
|
|
memcpy(ah->av.dgid, grh->dgid.raw, HNS_ROCE_GID_SIZE);
|
|
ah->av.sl_tclass_flowlabel = cpu_to_le32(rdma_ah_get_sl(ah_attr) <<
|
|
HNS_ROCE_SL_SHIFT);
|
|
|
|
return &ah->ibah;
|
|
}
|
|
|
|
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, (le32_to_cpu(ah->av.sl_tclass_flowlabel) >>
|
|
HNS_ROCE_SL_SHIFT));
|
|
rdma_ah_set_port_num(ah_attr, (le32_to_cpu(ah->av.port_pd) >>
|
|
HNS_ROCE_PORT_NUM_SHIFT));
|
|
rdma_ah_set_static_rate(ah_attr, ah->av.stat_rate);
|
|
rdma_ah_set_grh(ah_attr, NULL,
|
|
(le32_to_cpu(ah->av.sl_tclass_flowlabel) &
|
|
HNS_ROCE_FLOW_LABLE_MASK), ah->av.gid_index,
|
|
ah->av.hop_limit,
|
|
(le32_to_cpu(ah->av.sl_tclass_flowlabel) >>
|
|
HNS_ROCE_TCLASS_SHIFT));
|
|
rdma_ah_set_dgid_raw(ah_attr, ah->av.dgid);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int hns_roce_destroy_ah(struct ib_ah *ah)
|
|
{
|
|
kfree(to_hr_ah(ah));
|
|
|
|
return 0;
|
|
}
|