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| author | Don Hiatt <don.hiatt@intel.com> | 2018-05-16 04:28:07 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2018-05-24 18:39:25 +0300 |
| commit | 4171a693a5159e47f72eea3331bebf538dea9b83 (patch) | |
| tree | f52735501c0edd0705a45614ac21e7d88920c994 /drivers/infiniband | |
| parent | 013f64a88059fc65f01f1b967f1cf9c666a231a2 (diff) | |
| download | linux-4171a693a5159e47f72eea3331bebf538dea9b83.tar.xz | |
IB/hfi1: Define 16B Management Packets
Add 16B Management Packet definition. This optimized packet
format replaces the ib_other_headers and BTH with a source
and destination QP number.
To support these packets we introduce struct opa_16b_mgmt
into the struct hfi1_16b_header.
This packet format is only used for MAD packets using the
IB_OPCODE_UD_SEND_ONLY opcode on QP0/1.
The original 16B implementation failed to use 16B management
packets so now we add their definition.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Don Hiatt <don.hiatt@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/hfi.h | 1 | ||||
| -rw-r--r-- | drivers/infiniband/hw/hfi1/verbs.h | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/hfi.h b/drivers/infiniband/hw/hfi1/hfi.h index dd84238c1aac..531ac89c8213 100644 --- a/drivers/infiniband/hw/hfi1/hfi.h +++ b/drivers/infiniband/hw/hfi1/hfi.h @@ -392,6 +392,7 @@ struct hfi1_packet { */ #define OPA_16B_L4_9B 0x00 #define OPA_16B_L2_TYPE 0x02 +#define OPA_16B_L4_FM 0x08 #define OPA_16B_L4_IB_LOCAL 0x09 #define OPA_16B_L4_IB_GLOBAL 0x0A #define OPA_16B_L4_ETHR OPA_VNIC_L4_ETHR diff --git a/drivers/infiniband/hw/hfi1/verbs.h b/drivers/infiniband/hw/hfi1/verbs.h index a16fe5d3f7c4..a4d06502f06d 100644 --- a/drivers/infiniband/hw/hfi1/verbs.h +++ b/drivers/infiniband/hw/hfi1/verbs.h @@ -110,6 +110,12 @@ enum { #define LRH_9B_BYTES (FIELD_SIZEOF(struct ib_header, lrh)) #define LRH_9B_DWORDS (LRH_9B_BYTES / sizeof(u32)) +/* 24Bits for qpn, upper 8Bits reserved */ +struct opa_16b_mgmt { + __be32 dest_qpn; + __be32 src_qpn; +}; + struct hfi1_16b_header { u32 lrh[4]; union { @@ -118,6 +124,7 @@ struct hfi1_16b_header { struct ib_other_headers oth; } l; struct ib_other_headers oth; + struct opa_16b_mgmt mgmt; } u; } __packed; |