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linux/drivers/infiniband/sw/rdmavt/mad.h

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IB/rdmavt: Convert to SPDX identifier use SPDX-License-Identifier instead of a verbose license text Link: https://lore.kernel.org/r/20210823023530.48-1-caihuoqing@baidu.com Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-23 02:35:30 +00:00
/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
IB/rdmavt: Add process MAD stub This adds the stub for process mad. More study is needed to determine the final MAD interaction between the driver and rvt. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-06 17:58:37 +00:00
/*
IB/rdmavt: Fix copyright date Update all files added by rdmavt which do not yet have 2016 as the copyright year. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Reviewed-by: Harish Chegondi <harish.chegondi@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-22 21:04:58 +00:00
* Copyright(c) 2016 Intel Corporation.
IB/rdmavt: Add process MAD stub This adds the stub for process mad. More study is needed to determine the final MAD interaction between the driver and rvt. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-06 17:58:37 +00:00
*/
IB/rdmavt: Convert to SPDX identifier use SPDX-License-Identifier instead of a verbose license text Link: https://lore.kernel.org/r/20210823023530.48-1-caihuoqing@baidu.com Signed-off-by: Cai Huoqing <caihuoqing@baidu.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-08-23 02:35:30 +00:00
#ifndef DEF_RVTMAD_H
#define DEF_RVTMAD_H
IB/rdmavt: Add process MAD stub This adds the stub for process mad. More study is needed to determine the final MAD interaction between the driver and rvt. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-06 17:58:37 +00:00
#include <rdma/rdma_vt.h>
RDMA: Support more than 255 rdma ports Current code uses many different types when dealing with a port of a RDMA device: u8, unsigned int and u32. Switch to u32 to clean up the logic. This allows us to make (at least) the core view consistent and use the same type. Unfortunately not all places can be converted. Many uverbs functions expect port to be u8 so keep those places in order not to break UAPIs. HW/Spec defined values must also not be changed. With the switch to u32 we now can support devices with more than 255 ports. U32_MAX is reserved to make control logic a bit easier to deal with. As a device with U32_MAX ports probably isn't going to happen any time soon this seems like a non issue. When a device with more than 255 ports is created uverbs will report the RDMA device as having 255 ports as this is the max currently supported. The verbs interface is not changed yet because the IBTA spec limits the port size in too many places to be u8 and all applications that relies in verbs won't be able to cope with this change. At this stage, we are extending the interfaces that are using vendor channel solely Once the limitation is lifted mlx5 in switchdev mode will be able to have thousands of SFs created by the device. As the only instance of an RDMA device that reports more than 255 ports will be a representor device and it exposes itself as a RAW Ethernet only device CM/MAD/IPoIB and other ULPs aren't effected by this change and their sysfs/interfaces that are exposes to userspace can remain unchanged. While here cleanup some alignment issues and remove unneeded sanity checks (mainly in rdmavt), Link: https://lore.kernel.org/r/20210301070420.439400-1-leon@kernel.org Signed-off-by: Mark Bloch <mbloch@nvidia.com> Signed-off-by: Leon Romanovsky <leonro@nvidia.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-03-01 07:04:20 +00:00
int rvt_process_mad(struct ib_device *ibdev, int mad_flags, u32 port_num,
IB/rdmavt: Add process MAD stub This adds the stub for process mad. More study is needed to determine the final MAD interaction between the driver and rvt. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-06 17:58:37 +00:00
const struct ib_wc *in_wc, const struct ib_grh *in_grh,
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);
IB/rdmavt: Add mad agents to rdmavt This patch adds mad agent create and free to rdmavt. Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-22 21:04:51 +00:00
int rvt_create_mad_agents(struct rvt_dev_info *rdi);
void rvt_free_mad_agents(struct rvt_dev_info *rdi);
IB/rdmavt: Add process MAD stub This adds the stub for process mad. More study is needed to determine the final MAD interaction between the driver and rvt. Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-01-06 17:58:37 +00:00
#endif /* DEF_RVTMAD_H */
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