diff options
| author | Danit Goldberg <danitg@mellanox.com> | 2019-11-15 18:44:57 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-11-19 22:58:55 +0300 |
| commit | ff3195b3ed85d0068fb9a80eaa2a1471a04df76a (patch) | |
| tree | 329b124546132fc5bbcc849d72f33afaf032f982 /drivers/infiniband/hw/mlx4/main.c | |
| parent | 9067f2f0b41d7e817fc8c5259bab1f17512b0147 (diff) | |
| download | linux-ff3195b3ed85d0068fb9a80eaa2a1471a04df76a.tar.xz | |
IB/mlx4: Update HW GID table while adding vlan GID
When adding a new GID compare the vlan along with the GID and type. This
allows vlan's to have GIDs that alias each other, such as the default
GID. Otherwise they the GID cache view can become inconsistent with the HW
view.
Link: https://lore.kernel.org/r/20191115154457.247763-1-leon@kernel.org
Signed-off-by: Danit Goldberg <danitg@mellanox.com>
Reviewed-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/main.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/main.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c index f89b129b7e3a..0b5dc1d5928f 100644 --- a/drivers/infiniband/hw/mlx4/main.c +++ b/drivers/infiniband/hw/mlx4/main.c @@ -256,6 +256,8 @@ static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context) int hw_update = 0; int i; struct gid_entry *gids = NULL; + u16 vlan_id = 0xffff; + u8 mac[ETH_ALEN]; if (!rdma_cap_roce_gid_table(attr->device, attr->port_num)) return -EINVAL; @@ -266,12 +268,16 @@ static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context) if (!context) return -EINVAL; + ret = rdma_read_gid_l2_fields(attr, &vlan_id, &mac[0]); + if (ret) + return ret; port_gid_table = &iboe->gids[attr->port_num - 1]; spin_lock_bh(&iboe->lock); for (i = 0; i < MLX4_MAX_PORT_GIDS; ++i) { if (!memcmp(&port_gid_table->gids[i].gid, &attr->gid, sizeof(attr->gid)) && - port_gid_table->gids[i].gid_type == attr->gid_type) { + port_gid_table->gids[i].gid_type == attr->gid_type && + port_gid_table->gids[i].vlan_id == vlan_id) { found = i; break; } @@ -291,6 +297,7 @@ static int mlx4_ib_add_gid(const struct ib_gid_attr *attr, void **context) memcpy(&port_gid_table->gids[free].gid, &attr->gid, sizeof(attr->gid)); port_gid_table->gids[free].gid_type = attr->gid_type; + port_gid_table->gids[free].vlan_id = vlan_id; port_gid_table->gids[free].ctx->real_index = free; port_gid_table->gids[free].ctx->refcount = 1; hw_update = 1; |