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| author |   Ira Weiny <ira.weiny@intel.com> | 2015-06-06 14:38:31 -0400 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2015-06-12 14:49:17 -0400 |
| commit | 4cd7c9479aff33746af490fa4a5a7dee8654891a (patch) | |
| tree | bf8ecf8bc24f562b3c5b60171c906dc4adff1991 /drivers/infiniband/hw/mlx4 | |
| parent | IB/mad: Convert allocations from kmem_cache to kzalloc (diff) | |
| download | linux-dev-4cd7c9479aff33746af490fa4a5a7dee8654891a.tar.xz linux-dev-4cd7c9479aff33746af490fa4a5a7dee8654891a.zip | |
IB/mad: Add support for additional MAD info to/from drivers
In order to support alternate sized MADs (and variable sized MADs on OPA
devices) add in/out MAD size parameters to the process_mad core call.
In addition, add an out_mad_pkey_index to communicate the pkey index the driver
wishes the MAD stack to use when sending OPA MAD responses.
The out MAD size and the out MAD PKey index are required by the MAD
stack to generate responses on OPA devices.
Furthermore, the in and out MAD parameters are made generic by specifying them
as ib_mad_hdr rather than ib_mad.
Drivers are modified as needed and are protected by BUG_ON flags if the MAD
sizes passed to them is incorrect.
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mad.c | 10 | ||||
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mlx4_ib.h | 4 |
2 files changed, 12 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 532818785a7f..3e2dee46caa2 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -869,8 +869,16 @@ static int iboe_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, const struct ib_wc *in_wc, const struct ib_grh *in_grh, - const struct ib_mad *in_mad, struct ib_mad *out_mad) + const struct ib_mad_hdr *in, size_t in_mad_size, + struct ib_mad_hdr *out, size_t *out_mad_size, + u16 *out_mad_pkey_index) { + const struct ib_mad *in_mad = (const struct ib_mad *)in; + struct ib_mad *out_mad = (struct ib_mad *)out; + + BUG_ON(in_mad_size != sizeof(*in_mad) || + *out_mad_size != sizeof(*out_mad)); + switch (rdma_port_get_link_layer(ibdev, port_num)) { case IB_LINK_LAYER_INFINIBAND: return ib_process_mad(ibdev, mad_flags, port_num, in_wc, diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h index ac8cfece3e91..7933adfff662 100644 --- a/drivers/infiniband/hw/mlx4/mlx4_ib.h +++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h @@ -727,7 +727,9 @@ int mlx4_MAD_IFC(struct mlx4_ib_dev *dev, int mad_ifc_flags, const void *in_mad, void *response_mad); int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num, const struct ib_wc *in_wc, const struct ib_grh *in_grh, - const struct ib_mad *in_mad, struct ib_mad *out_mad); + const struct ib_mad_hdr *in, size_t in_mad_size, + struct ib_mad_hdr *out, size_t *out_mad_size, + u16 *out_mad_pkey_index); int mlx4_ib_mad_init(struct mlx4_ib_dev *dev); void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev); |