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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>
hifive-unleashed-5.1
Don Hiatt 2018-05-15 18:28:07 -07:00 committed by Jason Gunthorpe
parent 013f64a880
commit 4171a693a5
2 changed files with 8 additions and 0 deletions
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1
drivers/infiniband/hw/hfi1/hfi.h
View File

@ -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

7
drivers/infiniband/hw/hfi1/verbs.h
View File

@ -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;