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RDMA/hns: Query the number of functions supported by the PF 

Query how many functions are supported by the PF from the FW and store it
in the hns_roce_dev structure which will be used to support the
configuration of virtual functions.

Link: https://lore.kernel.org/r/1617715514-29039-3-git-send-email-liweihang@huawei.com
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
Signed-off-by: Shengming Shu <shushengming1@huawei.com>
Signed-off-by: Weihang Li <liweihang@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
This commit is contained in:
Wei Xu 2021-04-06 21:25:10 +08:00 committed by Jason Gunthorpe
parent 0fb46da051
commit 5b03a4226c
3 changed files with 10 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/infiniband/hw/hns/hns_roce_device.h
View File

@ -986,6 +986,7 @@ struct hns_roce_dev {
void *priv;
struct workqueue_struct *irq_workq;
const struct hns_roce_dfx_hw *dfx;
u32 func_num;
u32 cong_algo_tmpl_id;
};

9
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
View File

@ -1612,15 +1612,20 @@ static int hns_roce_query_func_info(struct hns_roce_dev *hr_dev)
struct hns_roce_cmq_desc desc;
int ret;
if (hr_dev->pci_dev->revision < PCI_REVISION_ID_HIP09)
if (hr_dev->pci_dev->revision < PCI_REVISION_ID_HIP09) {
hr_dev->func_num = 1;
return 0;
}
hns_roce_cmq_setup_basic_desc(&desc, HNS_ROCE_OPC_QUERY_FUNC_INFO,
true);
ret = hns_roce_cmq_send(hr_dev, &desc, 1);
if (ret)
if (ret) {
hr_dev->func_num = 1;
return ret;
}
hr_dev->func_num = le32_to_cpu(desc.func_info.own_func_num);
hr_dev->cong_algo_tmpl_id = le32_to_cpu(desc.func_info.own_mac_id);
return 0;

4
drivers/infiniband/hw/hns/hns_roce_hw_v2.h
View File

@ -1710,9 +1710,9 @@ struct hns_roce_cmq_desc {
union {
__le32 data[6];
struct {
__le32 rsv1;
__le32 own_func_num;
__le32 own_mac_id;
__le32 rsv2[4];
__le32 rsv[4];
} func_info;
};