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authorRoland Dreier <roland@purestorage.com>2014-01-22 23:24:21 -0800
committerRoland Dreier <roland@purestorage.com>2014-01-22 23:24:21 -0800
commitfb1b5034e4987b158179a62732fb6dfb8f7ec88e (patch)
tree93d02ff7f0f530286fd54d03b632c6eaabc9dcc9 /drivers/infiniband/hw/mlx4/qp.c
parent8f399921ea9a562bc8221258c4b8a7bd69577939 (diff)
parent27cdef637c25705b433d5c4deeef4cf8dcb75d6a (diff)
downloadlinux-linaro-stable-fb1b5034e4987b158179a62732fb6dfb8f7ec88e.tar.gz
Merge branch 'ip-roce' into for-next
Conflicts: drivers/infiniband/hw/mlx4/main.c
Diffstat (limited to 'drivers/infiniband/hw/mlx4/qp.c')
-rw-r--r--drivers/infiniband/hw/mlx4/qp.c104
1 files changed, 83 insertions, 21 deletions
diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index 387fbf274151..d8f4d1fe8494 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -90,6 +90,21 @@ enum {
MLX4_RAW_QP_MSGMAX = 31,
};
+#ifndef ETH_ALEN
+#define ETH_ALEN 6
+#endif
+static inline u64 mlx4_mac_to_u64(u8 *addr)
+{
+ u64 mac = 0;
+ int i;
+
+ for (i = 0; i < ETH_ALEN; i++) {
+ mac <<= 8;
+ mac |= addr[i];
+ }
+ return mac;
+}
+
static const __be32 mlx4_ib_opcode[] = {
[IB_WR_SEND] = cpu_to_be32(MLX4_OPCODE_SEND),
[IB_WR_LSO] = cpu_to_be32(MLX4_OPCODE_LSO),
@@ -1171,16 +1186,15 @@ static void mlx4_set_sched(struct mlx4_qp_path *path, u8 port)
path->sched_queue = (path->sched_queue & 0xbf) | ((port - 1) << 6);
}
-static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
- struct mlx4_qp_path *path, u8 port)
+static int _mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
+ u64 smac, u16 vlan_tag, struct mlx4_qp_path *path,
+ u8 port)
{
- int err;
int is_eth = rdma_port_get_link_layer(&dev->ib_dev, port) ==
IB_LINK_LAYER_ETHERNET;
- u8 mac[6];
- int is_mcast;
- u16 vlan_tag;
int vidx;
+ int smac_index;
+
path->grh_mylmc = ah->src_path_bits & 0x7f;
path->rlid = cpu_to_be16(ah->dlid);
@@ -1215,22 +1229,27 @@ static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
if (!(ah->ah_flags & IB_AH_GRH))
return -1;
- err = mlx4_ib_resolve_grh(dev, ah, mac, &is_mcast, port);
- if (err)
- return err;
-
- memcpy(path->dmac, mac, 6);
+ memcpy(path->dmac, ah->dmac, ETH_ALEN);
path->ackto = MLX4_IB_LINK_TYPE_ETH;
- /* use index 0 into MAC table for IBoE */
- path->grh_mylmc &= 0x80;
+ /* find the index into MAC table for IBoE */
+ if (!is_zero_ether_addr((const u8 *)&smac)) {
+ if (mlx4_find_cached_mac(dev->dev, port, smac,
+ &smac_index))
+ return -ENOENT;
+ } else {
+ smac_index = 0;
+ }
- vlan_tag = rdma_get_vlan_id(&dev->iboe.gid_table[port - 1][ah->grh.sgid_index]);
+ path->grh_mylmc &= 0x80 | smac_index;
+
+ path->feup |= MLX4_FEUP_FORCE_ETH_UP;
if (vlan_tag < 0x1000) {
if (mlx4_find_cached_vlan(dev->dev, port, vlan_tag, &vidx))
return -ENOENT;
path->vlan_index = vidx;
path->fl = 1 << 6;
+ path->feup |= MLX4_FVL_FORCE_ETH_VLAN;
}
} else
path->sched_queue = MLX4_IB_DEFAULT_SCHED_QUEUE |
@@ -1239,6 +1258,28 @@ static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_ah_attr *ah,
return 0;
}
+static int mlx4_set_path(struct mlx4_ib_dev *dev, const struct ib_qp_attr *qp,
+ enum ib_qp_attr_mask qp_attr_mask,
+ struct mlx4_qp_path *path, u8 port)
+{
+ return _mlx4_set_path(dev, &qp->ah_attr,
+ mlx4_mac_to_u64((u8 *)qp->smac),
+ (qp_attr_mask & IB_QP_VID) ? qp->vlan_id : 0xffff,
+ path, port);
+}
+
+static int mlx4_set_alt_path(struct mlx4_ib_dev *dev,
+ const struct ib_qp_attr *qp,
+ enum ib_qp_attr_mask qp_attr_mask,
+ struct mlx4_qp_path *path, u8 port)
+{
+ return _mlx4_set_path(dev, &qp->alt_ah_attr,
+ mlx4_mac_to_u64((u8 *)qp->alt_smac),
+ (qp_attr_mask & IB_QP_ALT_VID) ?
+ qp->alt_vlan_id : 0xffff,
+ path, port);
+}
+
static void update_mcg_macs(struct mlx4_ib_dev *dev, struct mlx4_ib_qp *qp)
{
struct mlx4_ib_gid_entry *ge, *tmp;
@@ -1362,7 +1403,7 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
}
if (attr_mask & IB_QP_AV) {
- if (mlx4_set_path(dev, &attr->ah_attr, &context->pri_path,
+ if (mlx4_set_path(dev, attr, attr_mask, &context->pri_path,
attr_mask & IB_QP_PORT ?
attr->port_num : qp->port))
goto out;
@@ -1385,8 +1426,8 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
dev->dev->caps.pkey_table_len[attr->alt_port_num])
goto out;
- if (mlx4_set_path(dev, &attr->alt_ah_attr, &context->alt_path,
- attr->alt_port_num))
+ if (mlx4_set_alt_path(dev, attr, attr_mask, &context->alt_path,
+ attr->alt_port_num))
goto out;
context->alt_path.pkey_index = attr->alt_pkey_index;
@@ -1497,6 +1538,17 @@ static int __mlx4_ib_modify_qp(struct ib_qp *ibqp,
context->pri_path.ackto = (context->pri_path.ackto & 0xf8) |
MLX4_IB_LINK_TYPE_ETH;
+ if (ibqp->qp_type == IB_QPT_UD && (new_state == IB_QPS_RTR)) {
+ int is_eth = rdma_port_get_link_layer(
+ &dev->ib_dev, qp->port) ==
+ IB_LINK_LAYER_ETHERNET;
+ if (is_eth) {
+ context->pri_path.ackto = MLX4_IB_LINK_TYPE_ETH;
+ optpar |= MLX4_QP_OPTPAR_PRIMARY_ADDR_PATH;
+ }
+ }
+
+
if (cur_state == IB_QPS_RTS && new_state == IB_QPS_SQD &&
attr_mask & IB_QP_EN_SQD_ASYNC_NOTIFY && attr->en_sqd_async_notify)
sqd_event = 1;
@@ -1599,13 +1651,21 @@ int mlx4_ib_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr,
struct mlx4_ib_qp *qp = to_mqp(ibqp);
enum ib_qp_state cur_state, new_state;
int err = -EINVAL;
-
+ int ll;
mutex_lock(&qp->mutex);
cur_state = attr_mask & IB_QP_CUR_STATE ? attr->cur_qp_state : qp->state;
new_state = attr_mask & IB_QP_STATE ? attr->qp_state : cur_state;
- if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type, attr_mask)) {
+ if (cur_state == new_state && cur_state == IB_QPS_RESET) {
+ ll = IB_LINK_LAYER_UNSPECIFIED;
+ } else {
+ int port = attr_mask & IB_QP_PORT ? attr->port_num : qp->port;
+ ll = rdma_port_get_link_layer(&dev->ib_dev, port);
+ }
+
+ if (!ib_modify_qp_is_ok(cur_state, new_state, ibqp->qp_type,
+ attr_mask, ll)) {
pr_debug("qpn 0x%x: invalid attribute mask specified "
"for transition %d to %d. qp_type %d,"
" attr_mask 0x%x\n",
@@ -1822,8 +1882,10 @@ static int build_mlx_header(struct mlx4_ib_sqp *sqp, struct ib_send_wr *wr,
return err;
}
- vlan = rdma_get_vlan_id(&sgid);
- is_vlan = vlan < 0x1000;
+ if (ah->av.eth.vlan != 0xffff) {
+ vlan = be16_to_cpu(ah->av.eth.vlan) & 0x0fff;
+ is_vlan = 1;
+ }
}
ib_ud_header_init(send_size, !is_eth, is_eth, is_vlan, is_grh, 0, &sqp->ud_header);