Update Linux to v5.4.2
Change-Id: Idf6911045d9d382da2cfe01b1edff026404ac8fd
diff --git a/drivers/infiniband/hw/mlx4/ah.c b/drivers/infiniband/hw/mlx4/ah.c
index e9e3a6f..02a169f 100644
--- a/drivers/infiniband/hw/mlx4/ah.c
+++ b/drivers/infiniband/hw/mlx4/ah.c
@@ -40,13 +40,12 @@
#include "mlx4_ib.h"
-static struct ib_ah *create_ib_ah(struct ib_pd *pd,
- struct rdma_ah_attr *ah_attr,
- struct mlx4_ib_ah *ah)
+static void create_ib_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr)
{
- struct mlx4_dev *dev = to_mdev(pd->device)->dev;
+ struct mlx4_ib_ah *ah = to_mah(ib_ah);
+ struct mlx4_dev *dev = to_mdev(ib_ah->device)->dev;
- ah->av.ib.port_pd = cpu_to_be32(to_mpd(pd)->pdn |
+ ah->av.ib.port_pd = cpu_to_be32(to_mpd(ib_ah->pd)->pdn |
(rdma_ah_get_port_num(ah_attr) << 24));
ah->av.ib.g_slid = rdma_ah_get_path_bits(ah_attr);
ah->av.ib.sl_tclass_flowlabel =
@@ -73,15 +72,12 @@
--static_rate;
ah->av.ib.stat_rate = static_rate;
}
-
- return &ah->ibah;
}
-static struct ib_ah *create_iboe_ah(struct ib_pd *pd,
- struct rdma_ah_attr *ah_attr,
- struct mlx4_ib_ah *ah)
+static int create_iboe_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr)
{
- struct mlx4_ib_dev *ibdev = to_mdev(pd->device);
+ struct mlx4_ib_dev *ibdev = to_mdev(ib_ah->device);
+ struct mlx4_ib_ah *ah = to_mah(ib_ah);
const struct ib_gid_attr *gid_attr;
struct mlx4_dev *dev = ibdev->dev;
int is_mcast = 0;
@@ -103,12 +99,14 @@
*/
gid_attr = ah_attr->grh.sgid_attr;
if (gid_attr) {
- if (is_vlan_dev(gid_attr->ndev))
- vlan_tag = vlan_dev_vlan_id(gid_attr->ndev);
- memcpy(ah->av.eth.s_mac, gid_attr->ndev->dev_addr, ETH_ALEN);
+ ret = rdma_read_gid_l2_fields(gid_attr, &vlan_tag,
+ &ah->av.eth.s_mac[0]);
+ if (ret)
+ return ret;
+
ret = mlx4_ib_gid_index_to_real_index(ibdev, gid_attr);
if (ret < 0)
- return ERR_PTR(ret);
+ return ret;
ah->av.eth.gid_index = ret;
} else {
/* mlx4_ib_create_ah_slave fills in the s_mac and the vlan */
@@ -117,7 +115,7 @@
if (vlan_tag < 0x1000)
vlan_tag |= (rdma_ah_get_sl(ah_attr) & 7) << 13;
- ah->av.eth.port_pd = cpu_to_be32(to_mpd(pd)->pdn |
+ ah->av.eth.port_pd = cpu_to_be32(to_mpd(ib_ah->pd)->pdn |
(rdma_ah_get_port_num(ah_attr) << 24));
ah->av.eth.vlan = cpu_to_be16(vlan_tag);
ah->av.eth.hop_limit = grh->hop_limit;
@@ -140,63 +138,45 @@
memcpy(ah->av.eth.dgid, grh->dgid.raw, 16);
ah->av.eth.sl_tclass_flowlabel |= cpu_to_be32(rdma_ah_get_sl(ah_attr)
<< 29);
- return &ah->ibah;
+ return 0;
}
-struct ib_ah *mlx4_ib_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
- struct ib_udata *udata)
+int mlx4_ib_create_ah(struct ib_ah *ib_ah, struct rdma_ah_attr *ah_attr,
+ u32 flags, struct ib_udata *udata)
{
- struct mlx4_ib_ah *ah;
- struct ib_ah *ret;
-
- ah = kzalloc(sizeof *ah, GFP_ATOMIC);
- if (!ah)
- return ERR_PTR(-ENOMEM);
-
if (ah_attr->type == RDMA_AH_ATTR_TYPE_ROCE) {
- if (!(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH)) {
- ret = ERR_PTR(-EINVAL);
- } else {
- /*
- * TBD: need to handle the case when we get
- * called in an atomic context and there we
- * might sleep. We don't expect this
- * currently since we're working with link
- * local addresses which we can translate
- * without going to sleep.
- */
- ret = create_iboe_ah(pd, ah_attr, ah);
- }
+ if (!(rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH))
+ return -EINVAL;
+ /*
+ * TBD: need to handle the case when we get
+ * called in an atomic context and there we
+ * might sleep. We don't expect this
+ * currently since we're working with link
+ * local addresses which we can translate
+ * without going to sleep.
+ */
+ return create_iboe_ah(ib_ah, ah_attr);
+ }
- if (IS_ERR(ret))
- kfree(ah);
-
- return ret;
- } else
- return create_ib_ah(pd, ah_attr, ah); /* never fails */
+ create_ib_ah(ib_ah, ah_attr);
+ return 0;
}
-/* AH's created via this call must be free'd by mlx4_ib_destroy_ah. */
-struct ib_ah *mlx4_ib_create_ah_slave(struct ib_pd *pd,
- struct rdma_ah_attr *ah_attr,
- int slave_sgid_index, u8 *s_mac,
- u16 vlan_tag)
+int mlx4_ib_create_ah_slave(struct ib_ah *ah, struct rdma_ah_attr *ah_attr,
+ int slave_sgid_index, u8 *s_mac, u16 vlan_tag)
{
struct rdma_ah_attr slave_attr = *ah_attr;
- struct mlx4_ib_ah *mah;
- struct ib_ah *ah;
+ struct mlx4_ib_ah *mah = to_mah(ah);
+ int ret;
slave_attr.grh.sgid_attr = NULL;
slave_attr.grh.sgid_index = slave_sgid_index;
- ah = mlx4_ib_create_ah(pd, &slave_attr, NULL);
- if (IS_ERR(ah))
- return ah;
+ ret = mlx4_ib_create_ah(ah, &slave_attr, 0, NULL);
+ if (ret)
+ return ret;
- ah->device = pd->device;
- ah->pd = pd;
ah->type = ah_attr->type;
- mah = to_mah(ah);
/* get rid of force-loopback bit */
mah->av.ib.port_pd &= cpu_to_be32(0x7FFFFFFF);
@@ -208,7 +188,7 @@
vlan_tag |= (rdma_ah_get_sl(ah_attr) & 7) << 13;
mah->av.eth.vlan = cpu_to_be16(vlan_tag);
- return ah;
+ return 0;
}
int mlx4_ib_query_ah(struct ib_ah *ibah, struct rdma_ah_attr *ah_attr)
@@ -250,8 +230,7 @@
return 0;
}
-int mlx4_ib_destroy_ah(struct ib_ah *ah)
+void mlx4_ib_destroy_ah(struct ib_ah *ah, u32 flags)
{
- kfree(to_mah(ah));
- return 0;
+ return;
}