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RDMA/smc: Replace ib_query_gid with rdma_get_gid_attr

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All RDMA ULPs should be using rdma_get_gid_attr instead of
ib_query_gid. Convert SMC to use the new API.

In the process correct some confusion with gid_type - if attr->ndev is
!NULL then gid_type can never be IB_GID_TYPE_IB by
definition. IB_GID_TYPE_ROCE shares the same enum value and is probably
what was intended here.

Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe 2018-08-17 16:45:51 -06:00
parent 0a3173a5f0
commit b4c296f9c9
2 changed files with 25 additions and 47 deletions
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24
include/rdma/ib_cache.h
View File

@ -133,28 +133,4 @@ const struct ib_gid_attr *rdma_get_gid_attr(struct ib_device *device,
void rdma_put_gid_attr(const struct ib_gid_attr *attr);
void rdma_hold_gid_attr(const struct ib_gid_attr *attr);
/*
* This is to be removed. It only exists to make merging rdma and smc simpler.
*/
static inline __deprecated int ib_query_gid(struct ib_device *device,
u8 port_num, int index,
union ib_gid *gid,
struct ib_gid_attr *attr_out)
{
const struct ib_gid_attr *attr;
memset(attr_out, 0, sizeof(*attr_out));
attr = rdma_get_gid_attr(device, port_num, index);
if (IS_ERR(attr))
return PTR_ERR(attr);
if (attr->ndev)
dev_hold(attr->ndev);
*attr_out = *attr;
rdma_put_gid_attr(attr);
return 0;
}
#endif /* _IB_CACHE_H */

48
net/smc/smc_ib.c
View File

@ -145,17 +145,21 @@ int smc_ib_ready_link(struct smc_link *lnk)
static int smc_ib_fill_mac(struct smc_ib_device *smcibdev, u8 ibport)
{
struct ib_gid_attr gattr;
union ib_gid gid;
int rc;
const struct ib_gid_attr *attr;
int rc = 0;
rc = ib_query_gid(smcibdev->ibdev, ibport, 0, &gid, &gattr);
if (rc || !gattr.ndev)
attr = rdma_get_gid_attr(smcibdev->ibdev, ibport, 0);
if (IS_ERR(attr))
return -ENODEV;
memcpy(smcibdev->mac[ibport - 1], gattr.ndev->dev_addr, ETH_ALEN);
dev_put(gattr.ndev);
return 0;
if (attr->ndev)
memcpy(smcibdev->mac[ibport - 1], attr->ndev->dev_addr,
ETH_ALEN);
else
rc = -ENODEV;
rdma_put_gid_attr(attr);
return rc;
}
/* Create an identifier unique for this instance of SMC-R.
@ -180,29 +184,27 @@ bool smc_ib_port_active(struct smc_ib_device *smcibdev, u8 ibport)
int smc_ib_determine_gid(struct smc_ib_device *smcibdev, u8 ibport,
unsigned short vlan_id, u8 gid[], u8 *sgid_index)
{
struct ib_gid_attr gattr;
union ib_gid _gid;
const struct ib_gid_attr *attr;
int i;
for (i = 0; i < smcibdev->pattr[ibport - 1].gid_tbl_len; i++) {
memset(&_gid, 0, SMC_GID_SIZE);
memset(&gattr, 0, sizeof(gattr));
if (ib_query_gid(smcibdev->ibdev, ibport, i, &_gid, &gattr))
attr = rdma_get_gid_attr(smcibdev->ibdev, ibport, i);
if (IS_ERR(attr))
continue;
if (!gattr.ndev)
continue;
if (((!vlan_id && !is_vlan_dev(gattr.ndev)) ||
(vlan_id && is_vlan_dev(gattr.ndev) &&
vlan_dev_vlan_id(gattr.ndev) == vlan_id)) &&
gattr.gid_type == IB_GID_TYPE_IB) {
if (attr->ndev &&
((!vlan_id && !is_vlan_dev(attr->ndev)) ||
(vlan_id && is_vlan_dev(attr->ndev) &&
vlan_dev_vlan_id(attr->ndev) == vlan_id)) &&
attr->gid_type == IB_GID_TYPE_ROCE) {
if (gid)
memcpy(gid, &_gid, SMC_GID_SIZE);
memcpy(gid, &attr->gid, SMC_GID_SIZE);
if (sgid_index)
*sgid_index = i;
dev_put(gattr.ndev);
*sgid_index = attr->index;
rdma_put_gid_attr(attr);
return 0;
}
dev_put(gattr.ndev);
rdma_put_gid_attr(attr);
}
return -ENODEV;
}