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mlx4_ib: Fix SIDR support of for UD QPs under SRIOV/RoCE 

* Handle CM_SIDR_REQ_ATTR_ID and CM_SIDR_REP_ATTR_ID
  in multiplex_cm_handler and demux_cm_handler.

* Handle Service ID Resolution messages and REQ messages
  separately, for their formats are different.

Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shani Michaelli 2014-03-12 12:00:42 +02:00 committed by David S. Miller
parent 5ea8bbfc49
commit ceb5433b3a
1 changed files with 57 additions and 15 deletions
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56
drivers/infiniband/hw/mlx4/cm.c
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@ -61,6 +61,11 @@ struct cm_generic_msg {
__be32 remote_comm_id;
};
struct cm_sidr_generic_msg {
struct ib_mad_hdr hdr;
__be32 request_id;
};
struct cm_req_msg {
unsigned char unused[0x60];
union ib_gid primary_path_sgid;
@ -69,28 +74,62 @@ struct cm_req_msg {
static void set_local_comm_id(struct ib_mad *mad, u32 cm_id)
{
if (mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
struct cm_sidr_generic_msg *msg =
(struct cm_sidr_generic_msg *)mad;
msg->request_id = cpu_to_be32(cm_id);
} else if (mad->mad_hdr.attr_id == CM_SIDR_REP_ATTR_ID) {
pr_err("trying to set local_comm_id in SIDR_REP\n");
return;
} else {
struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
msg->local_comm_id = cpu_to_be32(cm_id);
}
}
static u32 get_local_comm_id(struct ib_mad *mad)
{
if (mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
struct cm_sidr_generic_msg *msg =
(struct cm_sidr_generic_msg *)mad;
return be32_to_cpu(msg->request_id);
} else if (mad->mad_hdr.attr_id == CM_SIDR_REP_ATTR_ID) {
pr_err("trying to set local_comm_id in SIDR_REP\n");
return -1;
} else {
struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
return be32_to_cpu(msg->local_comm_id);
}
}
static void set_remote_comm_id(struct ib_mad *mad, u32 cm_id)
{
if (mad->mad_hdr.attr_id == CM_SIDR_REP_ATTR_ID) {
struct cm_sidr_generic_msg *msg =
(struct cm_sidr_generic_msg *)mad;
msg->request_id = cpu_to_be32(cm_id);
} else if (mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
pr_err("trying to set remote_comm_id in SIDR_REQ\n");
return;
} else {
struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
msg->remote_comm_id = cpu_to_be32(cm_id);
}
}
static u32 get_remote_comm_id(struct ib_mad *mad)
{
if (mad->mad_hdr.attr_id == CM_SIDR_REP_ATTR_ID) {
struct cm_sidr_generic_msg *msg =
(struct cm_sidr_generic_msg *)mad;
return be32_to_cpu(msg->request_id);
} else if (mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
pr_err("trying to set remote_comm_id in SIDR_REQ\n");
return -1;
} else {
struct cm_generic_msg *msg = (struct cm_generic_msg *)mad;
return be32_to_cpu(msg->remote_comm_id);
}
}
static union ib_gid gid_from_req_msg(struct ib_device *ibdev, struct ib_mad *mad)
@ -282,19 +321,21 @@ int mlx4_ib_multiplex_cm_handler(struct ib_device *ibdev, int port, int slave_id
u32 sl_cm_id;
int pv_cm_id = -1;
sl_cm_id = get_local_comm_id(mad);
if (mad->mad_hdr.attr_id == CM_REQ_ATTR_ID ||
mad->mad_hdr.attr_id == CM_REP_ATTR_ID) {
mad->mad_hdr.attr_id == CM_REP_ATTR_ID ||
mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
sl_cm_id = get_local_comm_id(mad);
id = id_map_alloc(ibdev, slave_id, sl_cm_id);
if (IS_ERR(id)) {
mlx4_ib_warn(ibdev, "%s: id{slave: %d, sl_cm_id: 0x%x} Failed to id_map_alloc\n",
__func__, slave_id, sl_cm_id);
return PTR_ERR(id);
}
} else if (mad->mad_hdr.attr_id == CM_REJ_ATTR_ID) {
} else if (mad->mad_hdr.attr_id == CM_REJ_ATTR_ID ||
mad->mad_hdr.attr_id == CM_SIDR_REP_ATTR_ID) {
return 0;
} else {
sl_cm_id = get_local_comm_id(mad);
id = id_map_get(ibdev, &pv_cm_id, slave_id, sl_cm_id);
}
@ -320,7 +361,8 @@ int mlx4_ib_demux_cm_handler(struct ib_device *ibdev, int port, int *slave,
u32 pv_cm_id;
struct id_map_entry *id;
if (mad->mad_hdr.attr_id == CM_REQ_ATTR_ID) {
if (mad->mad_hdr.attr_id == CM_REQ_ATTR_ID ||
mad->mad_hdr.attr_id == CM_SIDR_REQ_ATTR_ID) {
union ib_gid gid;
if (!slave)