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Commit 92f4e77c authored by Jason Gunthorpe's avatar Jason Gunthorpe
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Revert "net/smc: Replace ib_query_gid with rdma_get_gid_attr" 



This reverts commit ddb457c6.

The include rdma/ib_cache.h is kept, and we have to add a memset
to the compat wrapper to avoid compiler warnings in gcc-7

This revert is done to avoid extensive merge conflicts with SMC
changes in netdev during the 4.19 merge window.

Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent 89982f7c

include/rdma/ib_cache.h

+1 −0
Original line number Diff line number Diff line
@@ -143,6 +143,7 @@ static inline __deprecated int ib_query_gid(struct ib_device *device, 
{

	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);

net/smc/smc_core.c

+10 −9
Original line number Diff line number Diff line
@@ -451,7 +451,8 @@ 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];

	const struct ib_gid_attr *gattr;

	struct ib_gid_attr gattr;

	union ib_gid gid;

	int i;



	if (!lgr->vlan_id) {
@@ -461,18 +462,18 @@ 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++) {

		gattr = rdma_get_gid_attr(lnk->smcibdev->ibdev, lnk->ibport, i);

		if (IS_ERR(gattr))

		if (ib_query_gid(lnk->smcibdev->ibdev, lnk->ibport, i, &gid,

				 &gattr))

			continue;

		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);

		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);

				return 0;

			}

			dev_put(gattr.ndev);

		}

		rdma_put_gid_attr(gattr);

	}

	return -ENODEV;

}

net/smc/smc_ib.c

+10 −14
Original line number Diff line number Diff line
@@ -373,21 +373,17 @@ 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)

{

	const struct ib_gid_attr *gattr;

	int rc = 0;

	struct ib_gid_attr gattr;

	int rc;



	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;

	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;

}



/* Create an identifier unique for this instance of SMC-R.