diff options
Diffstat (limited to 'drivers/staging/rdma/hfi1/trace.c')
| -rw-r--r-- | drivers/staging/rdma/hfi1/trace.c | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/drivers/staging/rdma/hfi1/trace.c b/drivers/staging/rdma/hfi1/trace.c new file mode 100644 index 000000000000..70ad7b9fc1ce --- /dev/null +++ b/drivers/staging/rdma/hfi1/trace.c @@ -0,0 +1,221 @@ +/* + * + * This file is provided under a dual BSD/GPLv2 license. When using or + * redistributing this file, you may do so under either license. + * + * GPL LICENSE SUMMARY + * + * Copyright(c) 2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * BSD LICENSE + * + * Copyright(c) 2015 Intel Corporation. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * - Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * - Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * - Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + */ +#define CREATE_TRACE_POINTS +#include "trace.h" + +u8 ibhdr_exhdr_len(struct hfi1_ib_header *hdr) +{ + struct hfi1_other_headers *ohdr; + u8 opcode; + u8 lnh = (u8)(be16_to_cpu(hdr->lrh[0]) & 3); + + if (lnh == HFI1_LRH_BTH) + ohdr = &hdr->u.oth; + else + ohdr = &hdr->u.l.oth; + opcode = be32_to_cpu(ohdr->bth[0]) >> 24; + return hdr_len_by_opcode[opcode] == 0 ? + 0 : hdr_len_by_opcode[opcode] - (12 + 8); +} + +#define IMM_PRN "imm %d" +#define RETH_PRN "reth vaddr 0x%.16llx rkey 0x%.8x dlen 0x%.8x" +#define AETH_PRN "aeth syn 0x%.2x msn 0x%.8x" +#define DETH_PRN "deth qkey 0x%.8x sqpn 0x%.6x" +#define ATOMICACKETH_PRN "origdata %lld" +#define ATOMICETH_PRN "vaddr 0x%llx rkey 0x%.8x sdata %lld cdata %lld" + +#define OP(transport, op) IB_OPCODE_## transport ## _ ## op + +static u64 ib_u64_get(__be32 *p) +{ + return ((u64)be32_to_cpu(p[0]) << 32) | be32_to_cpu(p[1]); +} + +const char *parse_everbs_hdrs( + struct trace_seq *p, + u8 opcode, + void *ehdrs) +{ + union ib_ehdrs *eh = ehdrs; + const char *ret = trace_seq_buffer_ptr(p); + + switch (opcode) { + /* imm */ + case OP(RC, SEND_LAST_WITH_IMMEDIATE): + case OP(UC, SEND_LAST_WITH_IMMEDIATE): + case OP(RC, SEND_ONLY_WITH_IMMEDIATE): + case OP(UC, SEND_ONLY_WITH_IMMEDIATE): + case OP(RC, RDMA_WRITE_LAST_WITH_IMMEDIATE): + case OP(UC, RDMA_WRITE_LAST_WITH_IMMEDIATE): + trace_seq_printf(p, IMM_PRN, + be32_to_cpu(eh->imm_data)); + break; + /* reth + imm */ + case OP(RC, RDMA_WRITE_ONLY_WITH_IMMEDIATE): + case OP(UC, RDMA_WRITE_ONLY_WITH_IMMEDIATE): + trace_seq_printf(p, RETH_PRN " " IMM_PRN, + (unsigned long long)ib_u64_get( + (__be32 *)&eh->rc.reth.vaddr), + be32_to_cpu(eh->rc.reth.rkey), + be32_to_cpu(eh->rc.reth.length), + be32_to_cpu(eh->rc.imm_data)); + break; + /* reth */ + case OP(RC, RDMA_READ_REQUEST): + case OP(RC, RDMA_WRITE_FIRST): + case OP(UC, RDMA_WRITE_FIRST): + case OP(RC, RDMA_WRITE_ONLY): + case OP(UC, RDMA_WRITE_ONLY): + trace_seq_printf(p, RETH_PRN, + (unsigned long long)ib_u64_get( + (__be32 *)&eh->rc.reth.vaddr), + be32_to_cpu(eh->rc.reth.rkey), + be32_to_cpu(eh->rc.reth.length)); + break; + case OP(RC, RDMA_READ_RESPONSE_FIRST): + case OP(RC, RDMA_READ_RESPONSE_LAST): + case OP(RC, RDMA_READ_RESPONSE_ONLY): + case OP(RC, ACKNOWLEDGE): + trace_seq_printf(p, AETH_PRN, + be32_to_cpu(eh->aeth) >> 24, + be32_to_cpu(eh->aeth) & HFI1_QPN_MASK); + break; + /* aeth + atomicacketh */ + case OP(RC, ATOMIC_ACKNOWLEDGE): + trace_seq_printf(p, AETH_PRN " " ATOMICACKETH_PRN, + (be32_to_cpu(eh->at.aeth) >> 24) & 0xff, + be32_to_cpu(eh->at.aeth) & HFI1_QPN_MASK, + (unsigned long long)ib_u64_get(eh->at.atomic_ack_eth)); + break; + /* atomiceth */ + case OP(RC, COMPARE_SWAP): + case OP(RC, FETCH_ADD): + trace_seq_printf(p, ATOMICETH_PRN, + (unsigned long long)ib_u64_get(eh->atomic_eth.vaddr), + eh->atomic_eth.rkey, + (unsigned long long)ib_u64_get( + (__be32 *)&eh->atomic_eth.swap_data), + (unsigned long long) ib_u64_get( + (__be32 *)&eh->atomic_eth.compare_data)); + break; + /* deth */ + case OP(UD, SEND_ONLY): + case OP(UD, SEND_ONLY_WITH_IMMEDIATE): + trace_seq_printf(p, DETH_PRN, + be32_to_cpu(eh->ud.deth[0]), + be32_to_cpu(eh->ud.deth[1]) & HFI1_QPN_MASK); + break; + } + trace_seq_putc(p, 0); + return ret; +} + +const char *parse_sdma_flags( + struct trace_seq *p, + u64 desc0, u64 desc1) +{ + const char *ret = trace_seq_buffer_ptr(p); + char flags[5] = { 'x', 'x', 'x', 'x', 0 }; + + flags[0] = (desc1 & SDMA_DESC1_INT_REQ_FLAG) ? 'I' : '-'; + flags[1] = (desc1 & SDMA_DESC1_HEAD_TO_HOST_FLAG) ? 'H' : '-'; + flags[2] = (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) ? 'F' : '-'; + flags[3] = (desc0 & SDMA_DESC0_LAST_DESC_FLAG) ? 'L' : '-'; + trace_seq_printf(p, "%s", flags); + if (desc0 & SDMA_DESC0_FIRST_DESC_FLAG) + trace_seq_printf(p, " amode:%u aidx:%u alen:%u", + (u8)((desc1 >> SDMA_DESC1_HEADER_MODE_SHIFT) + & SDMA_DESC1_HEADER_MODE_MASK), + (u8)((desc1 >> SDMA_DESC1_HEADER_INDEX_SHIFT) + & SDMA_DESC1_HEADER_INDEX_MASK), + (u8)((desc1 >> SDMA_DESC1_HEADER_DWS_SHIFT) + & SDMA_DESC1_HEADER_DWS_MASK)); + return ret; +} + +const char *print_u32_array( + struct trace_seq *p, + u32 *arr, int len) +{ + int i; + const char *ret = trace_seq_buffer_ptr(p); + + for (i = 0; i < len ; i++) + trace_seq_printf(p, "%s%#x", i == 0 ? "" : " ", arr[i]); + trace_seq_putc(p, 0); + return ret; +} + +const char *print_u64_array( + struct trace_seq *p, + u64 *arr, int len) +{ + int i; + const char *ret = trace_seq_buffer_ptr(p); + + for (i = 0; i < len; i++) + trace_seq_printf(p, "%s0x%016llx", i == 0 ? "" : " ", arr[i]); + trace_seq_putc(p, 0); + return ret; +} + +__hfi1_trace_fn(PKT); +__hfi1_trace_fn(PROC); +__hfi1_trace_fn(SDMA); +__hfi1_trace_fn(LINKVERB); +__hfi1_trace_fn(DEBUG); +__hfi1_trace_fn(SNOOP); +__hfi1_trace_fn(CNTR); +__hfi1_trace_fn(PIO); +__hfi1_trace_fn(DC8051); +__hfi1_trace_fn(FIRMWARE); +__hfi1_trace_fn(RCVCTRL); +__hfi1_trace_fn(TID); |