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net/smc: Replace ib_query_gid with rdma_get_gid_attr

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Push the copy of the gid_attr into the SMC code. This probably doesn't
push it far enough, as it looks like the conn->lgr should potentially hold
the reference for its lifetime.

Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Parav Pandit 2018-06-05 08:40:19 +03:00 committed by Jason Gunthorpe
parent 77e786fcbe
commit ddb457c699
2 changed files with 25 additions and 20 deletions
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20
net/smc/smc_core.c
View File

@ -16,6 +16,7 @@
#include <net/tcp.h>
#include <net/sock.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
#include "smc.h"
#include "smc_clc.h"
@ -450,8 +451,7 @@ static int smc_vlan_by_tcpsk(struct socket *clcsock, unsigned short *vlan_id)
static int smc_link_determine_gid(struct smc_link_group *lgr)
{
struct smc_link *lnk = &lgr->lnk[SMC_SINGLE_LINK];
struct ib_gid_attr gattr;
union ib_gid gid;
const struct ib_gid_attr *gattr;
int i;
if (!lgr->vlan_id) {
@ -461,18 +461,18 @@ static int smc_link_determine_gid(struct smc_link_group *lgr)
for (i = 0; i < lnk->smcibdev->pattr[lnk->ibport - 1].gid_tbl_len;
i++) {
if (ib_query_gid(lnk->smcibdev->ibdev, lnk->ibport, i, &gid,
&gattr))
gattr = rdma_get_gid_attr(lnk->smcibdev->ibdev, lnk->ibport, i);
if (IS_ERR(gattr))
continue;
if (gattr.ndev) {
if (is_vlan_dev(gattr.ndev) &&
vlan_dev_vlan_id(gattr.ndev) == lgr->vlan_id) {
lnk->gid = gid;
dev_put(gattr.ndev);
if (gattr->ndev) {
if (is_vlan_dev(gattr->ndev) &&
vlan_dev_vlan_id(gattr->ndev) == lgr->vlan_id) {
lnk->gid = gattr->gid;
rdma_put_gid_attr(gattr);
return 0;
}
dev_put(gattr.ndev);
}
rdma_put_gid_attr(gattr);
}
return -ENODEV;
}

25
net/smc/smc_ib.c
View File

@ -16,6 +16,7 @@
#include <linux/workqueue.h>
#include <linux/scatterlist.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
#include "smc_pnet.h"
#include "smc_ib.h"
@ -372,17 +373,21 @@ void smc_ib_buf_unmap_sg(struct smc_ib_device *smcibdev,
static int smc_ib_fill_gid_and_mac(struct smc_ib_device *smcibdev, u8 ibport)
{
struct ib_gid_attr gattr;
int rc;
const struct ib_gid_attr *gattr;
int rc = 0;
rc = ib_query_gid(smcibdev->ibdev, ibport, 0,
&smcibdev->gid[ibport - 1], &gattr);
if (rc || !gattr.ndev)
return -ENODEV;
memcpy(smcibdev->mac[ibport - 1], gattr.ndev->dev_addr, ETH_ALEN);
dev_put(gattr.ndev);
return 0;
gattr = rdma_get_gid_attr(smcibdev->ibdev, ibport, 0);
if (IS_ERR(gattr))
return PTR_ERR(gattr);
if (!gattr->ndev) {
rc = -ENODEV;
goto done;
}
smcibdev->gid[ibport - 1] = gattr->gid;
memcpy(smcibdev->mac[ibport - 1], gattr->ndev->dev_addr, ETH_ALEN);
done:
rdma_put_gid_attr(gattr);
return rc;
}
/* Create an identifier unique for this instance of SMC-R.