From: Don Hiatt Date: Wed, 16 May 2018 01:28:07 +0000 (-0700) Subject: IB/hfi1: Define 16B Management Packets X-Git-Tag: v4.18-rc1~105^2~55 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=4171a693a5159e47f72eea3331bebf538dea9b83;p=linux.git 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 Signed-off-by: Don Hiatt Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- 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;