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IB/core: Add netdev and gid attributes paramteres to cache 

Adding an ability to query the IB cache by a netdev and get the
attributes of a GID. These parameters are necessary in order to
successfully resolve the required GID (when the netdevice is known)
and get the Ethernet L2 attributes from a GID.

Signed-off-by: Matan Barak <matanb@mellanox.com>
Reviewed-By: Devesh Sharma <devesh.sharma@avagotech.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
hifive-unleashed-5.1
Matan Barak 2015-10-15 18:38:45 +03:00 committed by Doug Ledford
parent fbfb6625ea
commit 55ee3ab2e4
19 changed files with 60 additions and 38 deletions
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10
drivers/infiniband/core/cache.c
View File

@ -649,21 +649,23 @@ static int gid_table_setup_one(struct ib_device *ib_dev)
int ib_get_cached_gid(struct ib_device *device,
u8 port_num,
int index,
union ib_gid *gid)
union ib_gid *gid,
struct ib_gid_attr *gid_attr)
{
if (port_num < rdma_start_port(device) || port_num > rdma_end_port(device))
return -EINVAL;
return __ib_cache_gid_get(device, port_num, index, gid, NULL);
return __ib_cache_gid_get(device, port_num, index, gid, gid_attr);
}
EXPORT_SYMBOL(ib_get_cached_gid);
int ib_find_cached_gid(struct ib_device *device,
const union ib_gid *gid,
struct net_device *ndev,
u8 *port_num,
u16 *index)
{
return ib_cache_gid_find(device, gid, NULL, port_num, index);
return ib_cache_gid_find(device, gid, ndev, port_num, index);
}
EXPORT_SYMBOL(ib_find_cached_gid);
@ -845,7 +847,7 @@ static void ib_cache_update(struct ib_device *device,
if (!use_roce_gid_table) {
for (i = 0; i < gid_cache->table_len; ++i) {
ret = ib_query_gid(device, port, i,
gid_cache->table + i);
gid_cache->table + i, NULL);
if (ret) {
printk(KERN_WARNING "ib_query_gid failed (%d) for %s (index %d)\n",
ret, device->name, i);

5
drivers/infiniband/core/cm.c
View File

@ -365,7 +365,7 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av)
read_lock_irqsave(&cm.device_lock, flags);
list_for_each_entry(cm_dev, &cm.device_list, list) {
if (!ib_find_cached_gid(cm_dev->ib_device, &path->sgid,
&p, NULL)) {
NULL, &p, NULL)) {
port = cm_dev->port[p-1];
break;
}
@ -1643,7 +1643,8 @@ static int cm_req_handler(struct cm_work *work)
ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av);
if (ret) {
ib_get_cached_gid(work->port->cm_dev->ib_device,
work->port->port_num, 0, &work->path[0].sgid);
work->port->port_num, 0, &work->path[0].sgid,
NULL);
ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID,
&work->path[0].sgid, sizeof work->path[0].sgid,
NULL, 0);

10
drivers/infiniband/core/cma.c
View File

@ -438,7 +438,7 @@ static inline int cma_validate_port(struct ib_device *device, u8 port,
if ((dev_type != ARPHRD_INFINIBAND) && rdma_protocol_ib(device, port))
return ret;
ret = ib_find_cached_gid(device, gid, &found_port, NULL);
ret = ib_find_cached_gid(device, gid, NULL, &found_port, NULL);
if (port != found_port)
return -ENODEV;
@ -531,7 +531,9 @@ static int cma_resolve_ib_dev(struct rdma_id_private *id_priv)
if (ib_find_cached_pkey(cur_dev->device, p, pkey, &index))
continue;
for (i = 0; !ib_get_cached_gid(cur_dev->device, p, i, &gid); i++) {
for (i = 0; !ib_get_cached_gid(cur_dev->device, p, i,
&gid, NULL);
i++) {
if (!memcmp(&gid, dgid, sizeof(gid))) {
cma_dev = cur_dev;
sgid = gid;
@ -718,7 +720,7 @@ static int cma_modify_qp_rtr(struct rdma_id_private *id_priv,
goto out;
ret = ib_query_gid(id_priv->id.device, id_priv->id.port_num,
qp_attr.ah_attr.grh.sgid_index, &sgid);
qp_attr.ah_attr.grh.sgid_index, &sgid, NULL);
if (ret)
goto out;
@ -2426,7 +2428,7 @@ static int cma_bind_loopback(struct rdma_id_private *id_priv)
p = 1;
port_found:
ret = ib_get_cached_gid(cma_dev->device, p, 0, &gid);
ret = ib_get_cached_gid(cma_dev->device, p, 0, &gid, NULL);
if (ret)
goto out;

17
drivers/infiniband/core/device.c
View File

@ -672,14 +672,20 @@ EXPORT_SYMBOL(ib_query_port);
* @port_num:Port number to query
* @index:GID table index to query
* @gid:Returned GID
* @attr: Returned GID attributes related to this GID index (only in RoCE).
* NULL means ignore.
*
* ib_query_gid() fetches the specified GID table entry.
*/
int ib_query_gid(struct ib_device *device,
u8 port_num, int index, union ib_gid *gid)
u8 port_num, int index, union ib_gid *gid,
struct ib_gid_attr *attr)
{
if (rdma_cap_roce_gid_table(device, port_num))
return ib_get_cached_gid(device, port_num, index, gid);
return ib_get_cached_gid(device, port_num, index, gid, attr);
if (attr)
return -EINVAL;
return device->query_gid(device, port_num, index, gid);
}
@ -819,12 +825,13 @@ EXPORT_SYMBOL(ib_modify_port);
* a specified GID value occurs.
* @device: The device to query.
* @gid: The GID value to search for.
* @ndev: The ndev related to the GID to search for.
* @port_num: The port number of the device where the GID value was found.
* @index: The index into the GID table where the GID was found. This
* parameter may be NULL.
*/
int ib_find_gid(struct ib_device *device, union ib_gid *gid,
u8 *port_num, u16 *index)
struct net_device *ndev, u8 *port_num, u16 *index)
{
union ib_gid tmp_gid;
int ret, port, i;
@ -832,14 +839,14 @@ int ib_find_gid(struct ib_device *device, union ib_gid *gid,
for (port = rdma_start_port(device); port <= rdma_end_port(device); ++port) {
if (rdma_cap_roce_gid_table(device, port)) {
if (!ib_cache_gid_find_by_port(device, gid, port,
NULL, index)) {
ndev, index)) {
*port_num = port;
return 0;
}
}
for (i = 0; i < device->port_immutable[port].gid_tbl_len; ++i) {
ret = ib_query_gid(device, port, i, &tmp_gid);
ret = ib_query_gid(device, port, i, &tmp_gid, NULL);
if (ret)
return ret;
if (!memcmp(&tmp_gid, gid, sizeof *gid)) {

2
drivers/infiniband/core/mad.c
View File

@ -1877,7 +1877,7 @@ static inline int rcv_has_same_gid(const struct ib_mad_agent_private *mad_agent_
((1 << lmc) - 1)));
} else {
if (ib_get_cached_gid(device, port_num,
attr.grh.sgid_index, &sgid))
attr.grh.sgid_index, &sgid, NULL))
return 0;
return !memcmp(sgid.raw, rwc->recv_buf.grh->dgid.raw,
16);

3
drivers/infiniband/core/multicast.c
View File

@ -729,7 +729,8 @@ int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
u16 gid_index;
u8 p;
ret = ib_find_cached_gid(device, &rec->port_gid, &p, &gid_index);
ret = ib_find_cached_gid(device, &rec->port_gid,
NULL, &p, &gid_index);
if (ret)
return ret;

2
drivers/infiniband/core/sa_query.c
View File

@ -1010,7 +1010,7 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
ah_attr->ah_flags = IB_AH_GRH;
ah_attr->grh.dgid = rec->dgid;
ret = ib_find_cached_gid(device, &rec->sgid, &port_num,
ret = ib_find_cached_gid(device, &rec->sgid, NULL, &port_num,
&gid_index);
if (ret)
return ret;

2
drivers/infiniband/core/sysfs.c
View File

@ -289,7 +289,7 @@ static ssize_t show_port_gid(struct ib_port *p, struct port_attribute *attr,
union ib_gid gid;
ssize_t ret;
ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid);
ret = ib_query_gid(p->ibdev, p->port_num, tab_attr->index, &gid, NULL);
if (ret)
return ret;

7
drivers/infiniband/core/verbs.c
View File

@ -344,8 +344,8 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num,
ah_attr->ah_flags = IB_AH_GRH;
ah_attr->grh.dgid = grh->sgid;
ret = ib_find_cached_gid(device, &grh->dgid, &port_num,
&gid_index);
ret = ib_find_cached_gid(device, &grh->dgid,
NULL, &port_num, &gid_index);
if (ret)
return ret;
@ -988,7 +988,8 @@ int ib_resolve_eth_l2_attrs(struct ib_qp *qp,
if ((*qp_attr_mask & IB_QP_AV) &&
(rdma_cap_eth_ah(qp->device, qp_attr->ah_attr.port_num))) {
ret = ib_query_gid(qp->device, qp_attr->ah_attr.port_num,
qp_attr->ah_attr.grh.sgid_index, &sgid);
qp_attr->ah_attr.grh.sgid_index, &sgid,
NULL);
if (ret)
goto out;
if (rdma_link_local_addr((struct in6_addr *)qp_attr->ah_attr.grh.dgid.raw)) {

4
drivers/infiniband/hw/mlx4/main.c
View File

@ -335,7 +335,7 @@ int mlx4_ib_gid_index_to_real_index(struct mlx4_ib_dev *ibdev,
if (!rdma_cap_roce_gid_table(&ibdev->ib_dev, port_num))
return index;
ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid);
ret = ib_get_cached_gid(&ibdev->ib_dev, port_num, index, &gid, NULL);
if (ret)
return ret;
@ -756,7 +756,7 @@ static int mlx4_ib_query_gid(struct ib_device *ibdev, u8 port, int index,
if (!rdma_cap_roce_gid_table(ibdev, port))
return -ENODEV;
ret = ib_get_cached_gid(ibdev, port, index, gid);
ret = ib_get_cached_gid(ibdev, port, index, gid, NULL);
if (ret == -EAGAIN) {
memcpy(gid, &zgid, sizeof(*gid));
return 0;

5
drivers/infiniband/hw/mlx4/qp.c
View File

@ -2269,7 +2269,8 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
} else {
err = ib_get_cached_gid(ib_dev,
be32_to_cpu(ah->av.ib.port_pd) >> 24,
ah->av.ib.gid_index, &sgid);
ah->av.ib.gid_index, &sgid,
NULL);
if (err)
return err;
}
@ -2311,7 +2312,7 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
ib_get_cached_gid(ib_dev,
be32_to_cpu(ah->av.ib.port_pd) >> 24,
ah->av.ib.gid_index,
&sqp->ud_header.grh.source_gid);
&sqp->ud_header.grh.source_gid, NULL);
}
memcpy(sqp->ud_header.grh.destination_gid.raw,
ah->av.ib.dgid, 16);

2
drivers/infiniband/hw/mthca/mthca_av.c
View File

@ -281,7 +281,7 @@ int mthca_read_ah(struct mthca_dev *dev, struct mthca_ah *ah,
ib_get_cached_gid(&dev->ib_dev,
be32_to_cpu(ah->av->port_pd) >> 24,
ah->av->gid_index % dev->limits.gid_table_len,
&header->grh.source_gid);
&header->grh.source_gid, NULL);
memcpy(header->grh.destination_gid.raw,
ah->av->dgid, 16);
}

2
drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
View File

@ -73,7 +73,7 @@ int ocrdma_query_gid(struct ib_device *ibdev, u8 port,
if (index >= OCRDMA_MAX_SGID)
return -EINVAL;
ret = ib_get_cached_gid(ibdev, port, index, sgid);
ret = ib_get_cached_gid(ibdev, port, index, sgid, NULL);
if (ret == -EAGAIN) {
memcpy(sgid, &zgid, sizeof(*sgid));
return 0;

2
drivers/infiniband/ulp/ipoib/ipoib_main.c
View File

@ -1860,7 +1860,7 @@ static struct net_device *ipoib_add_port(const char *format,
priv->dev->broadcast[8] = priv->pkey >> 8;
priv->dev->broadcast[9] = priv->pkey & 0xff;
result = ib_query_gid(hca, port, 0, &priv->local_gid);
result = ib_query_gid(hca, port, 0, &priv->local_gid, NULL);
if (result) {
printk(KERN_WARNING "%s: ib_query_gid port %d failed (ret = %d)\n",
hca->name, port, result);

2
drivers/infiniband/ulp/ipoib/ipoib_multicast.c
View File

@ -561,7 +561,7 @@ void ipoib_mcast_join_task(struct work_struct *work)
}
priv->local_lid = port_attr.lid;
if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid))
if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid, NULL))
ipoib_warn(priv, "ib_query_gid() failed\n");
else
memcpy(priv->dev->dev_addr + 4, priv->local_gid.raw, sizeof (union ib_gid));

2
drivers/infiniband/ulp/srp/ib_srp.c
View File

@ -3213,7 +3213,7 @@ static ssize_t srp_create_target(struct device *dev,
INIT_WORK(&target->tl_err_work, srp_tl_err_work);
INIT_WORK(&target->remove_work, srp_remove_work);
spin_lock_init(&target->lock);
ret = ib_query_gid(ibdev, host->port, 0, &target->sgid);
ret = ib_query_gid(ibdev, host->port, 0, &target->sgid, NULL);
if (ret)
goto out;

3
drivers/infiniband/ulp/srpt/ib_srpt.c
View File

@ -546,7 +546,8 @@ static int srpt_refresh_port(struct srpt_port *sport)
sport->sm_lid = port_attr.sm_lid;
sport->lid = port_attr.lid;
ret = ib_query_gid(sport->sdev->device, sport->port, 0, &sport->gid);
ret = ib_query_gid(sport->sdev->device, sport->port, 0, &sport->gid,
NULL);
if (ret)
goto err_query_port;

13
include/rdma/ib_cache.h
View File

@ -43,6 +43,8 @@
* @port_num: The port number of the device to query.
* @index: The index into the cached GID table to query.
* @gid: The GID value found at the specified index.
* @attr: The GID attribute found at the specified index (only in RoCE).
* NULL means ignore (output parameter).
*
* ib_get_cached_gid() fetches the specified GID table entry stored in
* the local software cache.
@ -50,13 +52,15 @@
int ib_get_cached_gid(struct ib_device *device,
u8 port_num,
int index,
union ib_gid *gid);
union ib_gid *gid,
struct ib_gid_attr *attr);
/**
* ib_find_cached_gid - Returns the port number and GID table index where
* a specified GID value occurs.
* @device: The device to query.
* @gid: The GID value to search for.
* @ndev: In RoCE, the net device of the device. NULL means ignore.
* @port_num: The port number of the device where the GID value was found.
* @index: The index into the cached GID table where the GID was found. This
* parameter may be NULL.
@ -64,10 +68,11 @@ int ib_get_cached_gid(struct ib_device *device,
* ib_find_cached_gid() searches for the specified GID value in
* the local software cache.
*/
int ib_find_cached_gid(struct ib_device *device,
int ib_find_cached_gid(struct ib_device *device,
const union ib_gid *gid,
u8 *port_num,
u16 *index);
struct net_device *ndev,
u8 *port_num,
u16 *index);
/**
* ib_get_cached_pkey - Returns a cached PKey table entry

5
include/rdma/ib_verbs.h
View File

@ -2177,7 +2177,8 @@ static inline bool rdma_cap_roce_gid_table(const struct ib_device *device,
}
int ib_query_gid(struct ib_device *device,
u8 port_num, int index, union ib_gid *gid);
u8 port_num, int index, union ib_gid *gid,
struct ib_gid_attr *attr);
int ib_query_pkey(struct ib_device *device,
u8 port_num, u16 index, u16 *pkey);
@ -2191,7 +2192,7 @@ int ib_modify_port(struct ib_device *device,
struct ib_port_modify *port_modify);
int ib_find_gid(struct ib_device *device, union ib_gid *gid,
u8 *port_num, u16 *index);
struct net_device *ndev, u8 *port_num, u16 *index);
int ib_find_pkey(struct ib_device *device,
u8 port_num, u16 pkey, u16 *index);