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IB/SA: Introduce path record specific types 

struct sa_path_rec has a gid_type field. This patch introduces a more
generic path record specific type 'rec_type' which is either IB, ROCE v1
or ROCE v2. The patch also provides conversion functions to get
a gid type from a path record type and vice versa

Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dasaratharaman Chandramouli 2017-04-27 19:05:59 -04:00 committed by Doug Ledford
parent c2f8fc4ec4
commit dfa834e1d9
5 changed files with 64 additions and 16 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/infiniband/core/cm.c
View File

@ -453,7 +453,8 @@ static int cm_init_av_by_path(struct 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,
path->gid_type, ndev, &p, NULL)) {
sa_conv_pathrec_to_gid_type(path),
ndev, &p, NULL)) {
port = cm_dev->port[p-1];
break;
}
@ -1775,8 +1776,11 @@ static int cm_req_handler(struct cm_work *work)
work->path[0].ifindex = gid_attr.ndev->ifindex;
work->path[0].net = dev_net(gid_attr.ndev);
dev_put(gid_attr.ndev);
work->path[0].rec_type =
sa_conv_gid_to_pathrec_type(gid_attr.gid_type);
} else {
work->path[0].rec_type = SA_PATH_REC_TYPE_IB;
}
work->path[0].gid_type = gid_attr.gid_type;
ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av,
cm_id_priv);
}
@ -1789,8 +1793,13 @@ static int cm_req_handler(struct cm_work *work)
work->path[0].ifindex = gid_attr.ndev->ifindex;
work->path[0].net = dev_net(gid_attr.ndev);
dev_put(gid_attr.ndev);
work->path[0].rec_type =
sa_conv_gid_to_pathrec_type(gid_attr.gid_type);
} else {
work->path[0].rec_type = SA_PATH_REC_TYPE_IB;
}
work->path[0].gid_type = gid_attr.gid_type;
if (req_msg->alt_local_lid)
work->path[1].rec_type = work->path[0].rec_type;
ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID,
&work->path[0].sgid, sizeof work->path[0].sgid,
NULL, 0);

16
drivers/infiniband/core/cma.c
View File

@ -2532,6 +2532,7 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
struct cma_work *work;
int ret;
struct net_device *ndev = NULL;
enum ib_gid_type gid_type = IB_GID_TYPE_IB;
u8 default_roce_tos = id_priv->cma_dev->default_roce_tos[id_priv->id.port_num -
rdma_start_port(id_priv->cma_dev->device)];
u8 tos = id_priv->tos_set ? id_priv->tos : default_roce_tos;
@ -2580,10 +2581,11 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
route->path_rec->ifindex = ndev->ifindex;
supported_gids = roce_gid_type_mask_support(id_priv->id.device,
id_priv->id.port_num);
route->path_rec->gid_type =
cma_route_gid_type(addr->dev_addr.network,
supported_gids,
id_priv->gid_type);
gid_type = cma_route_gid_type(addr->dev_addr.network,
supported_gids,
id_priv->gid_type);
route->path_rec->rec_type =
sa_conv_gid_to_pathrec_type(gid_type);
}
if (!ndev) {
ret = -ENODEV;
@ -2598,8 +2600,10 @@ static int cma_resolve_iboe_route(struct rdma_id_private *id_priv)
&route->path_rec->dgid);
/* Use the hint from IP Stack to select GID Type */
if (route->path_rec->gid_type < ib_network_to_gid_type(addr->dev_addr.network))
route->path_rec->gid_type = ib_network_to_gid_type(addr->dev_addr.network);
if (gid_type < ib_network_to_gid_type(addr->dev_addr.network))
gid_type = ib_network_to_gid_type(addr->dev_addr.network);
route->path_rec->rec_type = sa_conv_gid_to_pathrec_type(gid_type);
if (((struct sockaddr *)&id_priv->id.route.addr.dst_addr)->sa_family != AF_IB)
/* TODO: get the hoplimit from the inet/inet6 device */
route->path_rec->hop_limit = addr->dev_addr.hoplimit;

14
drivers/infiniband/core/sa_query.c
View File

@ -1144,7 +1144,7 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
if ((dev_addr.network == RDMA_NETWORK_IPV4 ||
dev_addr.network == RDMA_NETWORK_IPV6) &&
rec->gid_type != IB_GID_TYPE_ROCE_UDP_ENCAP)
rec->rec_type != SA_PATH_REC_TYPE_ROCE_V2)
return -EINVAL;
idev = device->get_netdev(device, port_num);
@ -1175,9 +1175,10 @@ int ib_init_ah_from_path(struct ib_device *device, u8 port_num,
}
if (rec->hop_limit > 0 || use_roce) {
ret = ib_find_cached_gid_by_port(device, &rec->sgid,
rec->gid_type, port_num, ndev,
&gid_index);
enum ib_gid_type type = sa_conv_pathrec_to_gid_type(rec);
ret = ib_find_cached_gid_by_port(device, &rec->sgid, type,
port_num, ndev, &gid_index);
if (ret) {
if (ndev)
dev_put(ndev);
@ -1327,7 +1328,7 @@ static void ib_sa_path_rec_callback(struct ib_sa_query *sa_query,
mad->data, &rec);
rec.net = NULL;
rec.ifindex = 0;
rec.gid_type = IB_GID_TYPE_IB;
rec.rec_type = SA_PATH_REC_TYPE_IB;
eth_zero_addr(rec.dmac);
query->callback(status, &rec, query->context);
} else
@ -1385,6 +1386,9 @@ int ib_sa_path_rec_get(struct ib_sa_client *client,
if (!sa_dev)
return -ENODEV;
if (rec->rec_type != SA_PATH_REC_TYPE_IB)
return -EINVAL;
port = &sa_dev->port[port_num - sa_dev->start_port];
agent = port->agent;

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

@ -149,6 +149,6 @@ void ib_copy_path_rec_from_user(struct sa_path_rec *dst,
memset(dst->dmac, 0, sizeof(dst->dmac));
dst->net = NULL;
dst->ifindex = 0;
dst->gid_type = IB_GID_TYPE_IB;
dst->rec_type = SA_PATH_REC_TYPE_IB;
}
EXPORT_SYMBOL(ib_copy_path_rec_from_user);

33
include/rdma/ib_sa.h
View File

@ -147,6 +147,11 @@ enum ib_sa_mc_join_states {
#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20)
#define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21)
#define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22)
enum sa_path_rec_type {
SA_PATH_REC_TYPE_IB,
SA_PATH_REC_TYPE_ROCE_V1,
SA_PATH_REC_TYPE_ROCE_V2
};
struct sa_path_rec {
__be64 service_id;
@ -176,7 +181,7 @@ struct sa_path_rec {
int ifindex;
/* ignored in IB */
struct net *net;
enum ib_gid_type gid_type;
enum sa_path_rec_type rec_type;
};
static inline struct net_device *ib_get_ndev_from_path(struct sa_path_rec *rec)
@ -184,6 +189,32 @@ static inline struct net_device *ib_get_ndev_from_path(struct sa_path_rec *rec)
return rec->net ? dev_get_by_index(rec->net, rec->ifindex) : NULL;
}
static inline enum ib_gid_type
sa_conv_pathrec_to_gid_type(struct sa_path_rec *rec)
{
switch (rec->rec_type) {
case SA_PATH_REC_TYPE_ROCE_V1:
return IB_GID_TYPE_ROCE;
case SA_PATH_REC_TYPE_ROCE_V2:
return IB_GID_TYPE_ROCE_UDP_ENCAP;
default:
return IB_GID_TYPE_IB;
}
}
static inline enum sa_path_rec_type
sa_conv_gid_to_pathrec_type(enum ib_gid_type type)
{
switch (type) {
case IB_GID_TYPE_ROCE:
return SA_PATH_REC_TYPE_ROCE_V1;
case IB_GID_TYPE_ROCE_UDP_ENCAP:
return SA_PATH_REC_TYPE_ROCE_V2;
default:
return SA_PATH_REC_TYPE_IB;
}
}
#define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0)
#define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1)
#define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2)