diff options
| author | Parav Pandit <parav@mellanox.com> | 2018-06-13 10:22:06 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-06-18 11:11:26 -0600 |
| commit | 47ec38666210485de860ab24675acb3d2e7d4954 (patch) | |
| tree | f719738795a1658e13e25dedc5cf44743fbd907b /drivers/infiniband/hw/mlx5/ah.c | |
| parent | d97099fe53ed9ab8b17d084bed0099feb08a48c1 (diff) | |
| download | lwn-47ec38666210485de860ab24675acb3d2e7d4954.tar.gz lwn-47ec38666210485de860ab24675acb3d2e7d4954.zip | |
RDMA: Convert drivers to use sgid_attr instead of sgid_index
The core code now ensures that all driver callbacks that receive an
rdma_ah_attrs will have a sgid_attr's pointer if there is a GRH present.
Drivers can use this pointer instead of calling a query function with
sgid_index. This simplifies the drivers and also avoids races where a
gid_index lookup may return different data if it is changed.
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/ah.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/ah.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/drivers/infiniband/hw/mlx5/ah.c b/drivers/infiniband/hw/mlx5/ah.c index e6bde32a83f3..ffd03bf1a71e 100644 --- a/drivers/infiniband/hw/mlx5/ah.c +++ b/drivers/infiniband/hw/mlx5/ah.c @@ -37,7 +37,6 @@ static struct ib_ah *create_ib_ah(struct mlx5_ib_dev *dev, struct rdma_ah_attr *ah_attr) { enum ib_gid_type gid_type; - int err; if (rdma_ah_get_ah_flags(ah_attr) & IB_AH_GRH) { const struct ib_global_route *grh = rdma_ah_read_grh(ah_attr); @@ -53,18 +52,12 @@ static struct ib_ah *create_ib_ah(struct mlx5_ib_dev *dev, ah->av.stat_rate_sl = (rdma_ah_get_static_rate(ah_attr) << 4); if (ah_attr->type == RDMA_AH_ATTR_TYPE_ROCE) { - err = mlx5_get_roce_gid_type(dev, ah_attr->port_num, - ah_attr->grh.sgid_index, - &gid_type); - if (err) - return ERR_PTR(err); + gid_type = ah_attr->grh.sgid_attr->gid_type; memcpy(ah->av.rmac, ah_attr->roce.dmac, sizeof(ah_attr->roce.dmac)); ah->av.udp_sport = - mlx5_get_roce_udp_sport(dev, - rdma_ah_get_port_num(ah_attr), - rdma_ah_read_grh(ah_attr)->sgid_index); + mlx5_get_roce_udp_sport(dev, ah_attr->grh.sgid_attr); ah->av.stat_rate_sl |= (rdma_ah_get_sl(ah_attr) & 0x7) << 1; if (gid_type == IB_GID_TYPE_ROCE_UDP_ENCAP) #define MLX5_ECN_ENABLED BIT(1) |