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path: root/drivers/infiniband/core/verbs.c
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Diffstat (limited to 'drivers/infiniband/core/verbs.c')
-rw-r--r--drivers/infiniband/core/verbs.c101
1 files changed, 99 insertions, 2 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index d4f6ddf72ff..3ac79511543 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -44,6 +44,9 @@
#include <rdma/ib_verbs.h>
#include <rdma/ib_cache.h>
+#include <rdma/ib_addr.h>
+
+#include "core_priv.h"
int ib_rate_to_mult(enum ib_rate rate)
{
@@ -116,6 +119,8 @@ rdma_node_get_transport(enum rdma_node_type node_type)
return RDMA_TRANSPORT_IWARP;
case RDMA_NODE_USNIC:
return RDMA_TRANSPORT_USNIC;
+ case RDMA_NODE_USNIC_UDP:
+ return RDMA_TRANSPORT_USNIC_UDP;
default:
BUG();
return 0;
@@ -133,6 +138,7 @@ enum rdma_link_layer rdma_port_get_link_layer(struct ib_device *device, u8 port_
return IB_LINK_LAYER_INFINIBAND;
case RDMA_TRANSPORT_IWARP:
case RDMA_TRANSPORT_USNIC:
+ case RDMA_TRANSPORT_USNIC_UDP:
return IB_LINK_LAYER_ETHERNET;
default:
return IB_LINK_LAYER_UNSPECIFIED;
@@ -192,8 +198,28 @@ int ib_init_ah_from_wc(struct ib_device *device, u8 port_num, struct ib_wc *wc,
u32 flow_class;
u16 gid_index;
int ret;
+ int is_eth = (rdma_port_get_link_layer(device, port_num) ==
+ IB_LINK_LAYER_ETHERNET);
memset(ah_attr, 0, sizeof *ah_attr);
+ if (is_eth) {
+ if (!(wc->wc_flags & IB_WC_GRH))
+ return -EPROTOTYPE;
+
+ if (wc->wc_flags & IB_WC_WITH_SMAC &&
+ wc->wc_flags & IB_WC_WITH_VLAN) {
+ memcpy(ah_attr->dmac, wc->smac, ETH_ALEN);
+ ah_attr->vlan_id = wc->vlan_id;
+ } else {
+ ret = rdma_addr_find_dmac_by_grh(&grh->dgid, &grh->sgid,
+ ah_attr->dmac, &ah_attr->vlan_id);
+ if (ret)
+ return ret;
+ }
+ } else {
+ ah_attr->vlan_id = 0xffff;
+ }
+
ah_attr->dlid = wc->slid;
ah_attr->sl = wc->sl;
ah_attr->src_path_bits = wc->dlid_path_bits;
@@ -476,7 +502,9 @@ EXPORT_SYMBOL(ib_create_qp);
static const struct {
int valid;
enum ib_qp_attr_mask req_param[IB_QPT_MAX];
+ enum ib_qp_attr_mask req_param_add_eth[IB_QPT_MAX];
enum ib_qp_attr_mask opt_param[IB_QPT_MAX];
+ enum ib_qp_attr_mask opt_param_add_eth[IB_QPT_MAX];
} qp_state_table[IB_QPS_ERR + 1][IB_QPS_ERR + 1] = {
[IB_QPS_RESET] = {
[IB_QPS_RESET] = { .valid = 1 },
@@ -557,6 +585,12 @@ static const struct {
IB_QP_MAX_DEST_RD_ATOMIC |
IB_QP_MIN_RNR_TIMER),
},
+ .req_param_add_eth = {
+ [IB_QPT_RC] = (IB_QP_SMAC),
+ [IB_QPT_UC] = (IB_QP_SMAC),
+ [IB_QPT_XRC_INI] = (IB_QP_SMAC),
+ [IB_QPT_XRC_TGT] = (IB_QP_SMAC)
+ },
.opt_param = {
[IB_QPT_UD] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
@@ -576,7 +610,21 @@ static const struct {
IB_QP_QKEY),
[IB_QPT_GSI] = (IB_QP_PKEY_INDEX |
IB_QP_QKEY),
- }
+ },
+ .opt_param_add_eth = {
+ [IB_QPT_RC] = (IB_QP_ALT_SMAC |
+ IB_QP_VID |
+ IB_QP_ALT_VID),
+ [IB_QPT_UC] = (IB_QP_ALT_SMAC |
+ IB_QP_VID |
+ IB_QP_ALT_VID),
+ [IB_QPT_XRC_INI] = (IB_QP_ALT_SMAC |
+ IB_QP_VID |
+ IB_QP_ALT_VID),
+ [IB_QPT_XRC_TGT] = (IB_QP_ALT_SMAC |
+ IB_QP_VID |
+ IB_QP_ALT_VID)
+ }
}
},
[IB_QPS_RTR] = {
@@ -779,7 +827,8 @@ static const struct {
};
int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
- enum ib_qp_type type, enum ib_qp_attr_mask mask)
+ enum ib_qp_type type, enum ib_qp_attr_mask mask,
+ enum rdma_link_layer ll)
{
enum ib_qp_attr_mask req_param, opt_param;
@@ -798,6 +847,13 @@ int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
req_param = qp_state_table[cur_state][next_state].req_param[type];
opt_param = qp_state_table[cur_state][next_state].opt_param[type];
+ if (ll == IB_LINK_LAYER_ETHERNET) {
+ req_param |= qp_state_table[cur_state][next_state].
+ req_param_add_eth[type];
+ opt_param |= qp_state_table[cur_state][next_state].
+ opt_param_add_eth[type];
+ }
+
if ((mask & req_param) != req_param)
return 0;
@@ -808,10 +864,51 @@ int ib_modify_qp_is_ok(enum ib_qp_state cur_state, enum ib_qp_state next_state,
}
EXPORT_SYMBOL(ib_modify_qp_is_ok);
+int ib_resolve_eth_l2_attrs(struct ib_qp *qp,
+ struct ib_qp_attr *qp_attr, int *qp_attr_mask)
+{
+ int ret = 0;
+ union ib_gid sgid;
+
+ if ((*qp_attr_mask & IB_QP_AV) &&
+ (rdma_port_get_link_layer(qp->device, qp_attr->ah_attr.port_num) == IB_LINK_LAYER_ETHERNET)) {
+ ret = ib_query_gid(qp->device, qp_attr->ah_attr.port_num,
+ qp_attr->ah_attr.grh.sgid_index, &sgid);
+ if (ret)
+ goto out;
+ if (rdma_link_local_addr((struct in6_addr *)qp_attr->ah_attr.grh.dgid.raw)) {
+ rdma_get_ll_mac((struct in6_addr *)qp_attr->ah_attr.grh.dgid.raw, qp_attr->ah_attr.dmac);
+ rdma_get_ll_mac((struct in6_addr *)sgid.raw, qp_attr->smac);
+ qp_attr->vlan_id = rdma_get_vlan_id(&sgid);
+ } else {
+ ret = rdma_addr_find_dmac_by_grh(&sgid, &qp_attr->ah_attr.grh.dgid,
+ qp_attr->ah_attr.dmac, &qp_attr->vlan_id);
+ if (ret)
+ goto out;
+ ret = rdma_addr_find_smac_by_sgid(&sgid, qp_attr->smac, NULL);
+ if (ret)
+ goto out;
+ }
+ *qp_attr_mask |= IB_QP_SMAC;
+ if (qp_attr->vlan_id < 0xFFFF)
+ *qp_attr_mask |= IB_QP_VID;
+ }
+out:
+ return ret;
+}
+EXPORT_SYMBOL(ib_resolve_eth_l2_attrs);
+
+
int ib_modify_qp(struct ib_qp *qp,
struct ib_qp_attr *qp_attr,
int qp_attr_mask)
{
+ int ret;
+
+ ret = ib_resolve_eth_l2_attrs(qp, qp_attr, &qp_attr_mask);
+ if (ret)
+ return ret;
+
return qp->device->modify_qp(qp->real_qp, qp_attr, qp_attr_mask, NULL);
}
EXPORT_SYMBOL(ib_modify_qp);