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| author | Gary Leshner <Gary.S.Leshner@intel.com> | 2020-05-11 19:05:48 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2020-05-21 17:23:54 +0300 |
| commit | d99dc602e2a55a99940ba9506a7126dfa54d54ea (patch) | |
| tree | 977ed17d40aa1c83eb616f4269874cfa6fa1834e /drivers/infiniband/hw/hfi1/trace.c | |
| parent | fe810b509c5f62b5b3d5681ea6f5d36349ced979 (diff) | |
| download | linux-d99dc602e2a55a99940ba9506a7126dfa54d54ea.tar.xz | |
IB/hfi1: Add functions to transmit datagram ipoib packets
This patch implements the mechanism to accelerate the transmit side of
a multiple transmit queue RDMA netdev by submitting the packets to
the SDMA engine directly instead of sending through the verbs layer.
This patch also changes the UD/SEND_ONLY op to output the entropy value
in byte 0 of deth[1]. UD/SEND_ONLY_WITH_IMMEDIATE uses the previous
behavior with no entropy value being output.
The code in the ipoib rdma netdev which submits tx requests upon
successful submission will call trace_sdma_output_ibhdr to output
the ibhdr to the trace buffer.
Link: https://lore.kernel.org/r/20200511160548.173205.45616.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Gary Leshner <Gary.S.Leshner@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/trace.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/trace.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/hfi1/trace.c b/drivers/infiniband/hw/hfi1/trace.c index 9a3d236bcc88..c8a9988d972d 100644 --- a/drivers/infiniband/hw/hfi1/trace.c +++ b/drivers/infiniband/hw/hfi1/trace.c @@ -1,5 +1,5 @@ /* - * Copyright(c) 2015 - 2018 Intel Corporation. + * Copyright(c) 2015 - 2020 Intel Corporation. * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. @@ -47,6 +47,7 @@ #define CREATE_TRACE_POINTS #include "trace.h" #include "exp_rcv.h" +#include "ipoib.h" static u8 __get_ib_hdr_len(struct ib_header *hdr) { @@ -126,6 +127,7 @@ const char *hfi1_trace_get_packet_l2_str(u8 l2) #define RETH_PRN "reth vaddr:0x%.16llx rkey:0x%.8x dlen:0x%.8x" #define AETH_PRN "aeth syn:0x%.2x %s msn:0x%.8x" #define DETH_PRN "deth qkey:0x%.8x sqpn:0x%.6x" +#define DETH_ENTROPY_PRN "deth qkey:0x%.8x sqpn:0x%.6x entropy:0x%.2x" #define IETH_PRN "ieth rkey:0x%.8x" #define ATOMICACKETH_PRN "origdata:%llx" #define ATOMICETH_PRN "vaddr:0x%llx rkey:0x%.8x sdata:%llx cdata:%llx" @@ -444,6 +446,12 @@ const char *parse_everbs_hdrs( break; /* deth */ case OP(UD, SEND_ONLY): + trace_seq_printf(p, DETH_ENTROPY_PRN, + be32_to_cpu(eh->ud.deth[0]), + be32_to_cpu(eh->ud.deth[1]) & RVT_QPN_MASK, + be32_to_cpu(eh->ud.deth[1]) >> + HFI1_IPOIB_ENTROPY_SHIFT); + break; case OP(UD, SEND_ONLY_WITH_IMMEDIATE): trace_seq_printf(p, DETH_PRN, be32_to_cpu(eh->ud.deth[0]), |