On Fri, Apr 26, 2019 at 03:18:51PM +0200, Bernard Metzler wrote:
> From: Bernard Metzler <bmt@xxxxxxxxxxxxxxxxxxx>
>
> Signed-off-by: Bernard Metzler <bmt@xxxxxxxxxxxxxx>
> ---
> drivers/infiniband/sw/siw/siw_debug.c | 91 +++++++++++++++++++++++++++
> drivers/infiniband/sw/siw/siw_debug.h | 40 ++++++++++++
> 2 files changed, 131 insertions(+)
> create mode 100644 drivers/infiniband/sw/siw/siw_debug.c
> create mode 100644 drivers/infiniband/sw/siw/siw_debug.h
>
> diff --git a/drivers/infiniband/sw/siw/siw_debug.c b/drivers/infiniband/sw/siw/siw_debug.c
> new file mode 100644
> index 000000000000..86460d370333
> --- /dev/null
> +++ b/drivers/infiniband/sw/siw/siw_debug.c
> @@ -0,0 +1,91 @@
> +// SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause
> +
> +/* Authors: Bernard Metzler <bmt@xxxxxxxxxxxxxx> */
> +/* Copyright (c) 2008-2019, IBM Corporation */
> +
> +#include <linux/types.h>
> +#include <linux/printk.h>
> +
> +#include "siw.h"
> +
> +#define ddp_data_len(op, mpa_len) \
> + (mpa_len - (iwarp_pktinfo[op].hdr_len - MPA_HDR_SIZE))
> +
> +void siw_print_hdr(union iwarp_hdr *hdr, int qp_id, char *string)
> +{
> + enum rdma_opcode op = __rdmap_get_opcode(&hdr->ctrl);
> + u16 mpa_len = be16_to_cpu(hdr->ctrl.mpa_len);
> +
> + switch (op) {
> + case RDMAP_RDMA_WRITE:
> + pr_info("siw: [QP %u]: %s(WRITE, DDP len %d): %08x %016llx\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + hdr->rwrite.sink_stag, hdr->rwrite.sink_to);
> + break;
> +
> + case RDMAP_RDMA_READ_REQ:
> + pr_info("siw: [QP %u]: %s(RREQ, DDP len %d): %08x %08x %08x %08x %016llx %08x %08x %016llx\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + be32_to_cpu(hdr->rreq.ddp_qn),
> + be32_to_cpu(hdr->rreq.ddp_msn),
> + be32_to_cpu(hdr->rreq.ddp_mo),
> + be32_to_cpu(hdr->rreq.sink_stag),
> + be64_to_cpu(hdr->rreq.sink_to),
> + be32_to_cpu(hdr->rreq.read_size),
> + be32_to_cpu(hdr->rreq.source_stag),
> + be64_to_cpu(hdr->rreq.source_to));
> +
> + break;
> +
> + case RDMAP_RDMA_READ_RESP:
> + pr_info("siw: [QP %u]: %s(RRESP, DDP len %d): %08x %016llx\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + be32_to_cpu(hdr->rresp.sink_stag),
> + be64_to_cpu(hdr->rresp.sink_to));
> + break;
> +
> + case RDMAP_SEND:
> + pr_info("siw: [QP %u]: %s(SEND, DDP len %d): %08x %08x %08x\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + be32_to_cpu(hdr->send.ddp_qn),
> + be32_to_cpu(hdr->send.ddp_msn),
> + be32_to_cpu(hdr->send.ddp_mo));
> + break;
> +
> + case RDMAP_SEND_INVAL:
> + pr_info("siw: [QP %u]: %s(S_INV, DDP len %d): %08x %08x %08x %08x\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + be32_to_cpu(hdr->send_inv.inval_stag),
> + be32_to_cpu(hdr->send_inv.ddp_qn),
> + be32_to_cpu(hdr->send_inv.ddp_msn),
> + be32_to_cpu(hdr->send_inv.ddp_mo));
> + break;
> +
> + case RDMAP_SEND_SE:
> + pr_info("siw: [QP %u]: %s(S_SE, DDP len %d): %08x %08x %08x\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + be32_to_cpu(hdr->send.ddp_qn),
> + be32_to_cpu(hdr->send.ddp_msn),
> + be32_to_cpu(hdr->send.ddp_mo));
> + break;
> +
> + case RDMAP_SEND_SE_INVAL:
> + pr_info("siw: [QP %u]: %s(S_SE_INV, DDP len %d): %08x %08x %08x %08x\n",
> + qp_id, string, ddp_data_len(op, mpa_len),
> + be32_to_cpu(hdr->send_inv.inval_stag),
> + be32_to_cpu(hdr->send_inv.ddp_qn),
> + be32_to_cpu(hdr->send_inv.ddp_msn),
> + be32_to_cpu(hdr->send_inv.ddp_mo));
> + break;
> +
> + case RDMAP_TERMINATE:
> + pr_info("siw: [QP %u]: %s(TERM, DDP len %d):\n", qp_id, string,
> + ddp_data_len(op, mpa_len));
> + break;
> +
> + default:
> + pr_info("siw: [QP %u]: %s (undefined opcode %d)", qp_id, string,
> + op);
> + break;
> + }
> +}
> diff --git a/drivers/infiniband/sw/siw/siw_debug.h b/drivers/infiniband/sw/siw/siw_debug.h
> new file mode 100644
> index 000000000000..2cfe7ce68428
> --- /dev/null
> +++ b/drivers/infiniband/sw/siw/siw_debug.h
> @@ -0,0 +1,40 @@
> +/* SPDX-License-Identifier: GPL-2.0 or BSD-3-Clause */
> +
> +/* Authors: Bernard Metzler <bmt@xxxxxxxxxxxxxx> */
> +/* Copyright (c) 2008-2019, IBM Corporation */
> +
> +#ifndef _SIW_DEBUG_H
> +#define _SIW_DEBUG_H
> +
> +#define siw_dbg(ddev, fmt, ...) \
> + dev_dbg(&(ddev)->base_dev.dev, "cpu%2d %s: " fmt, smp_processor_id(), \
> + __func__, ##__VA_ARGS__)
> +
> +#define siw_dbg_qp(qp, fmt, ...) \
> + siw_dbg(qp->sdev, "[QP %u]: " fmt, qp->id, ##__VA_ARGS__)
> +
> +#define siw_dbg_cq(cq, fmt, ...) \
> + siw_dbg(cq->sdev, "[CQ %u]: " fmt, cq->id, ##__VA_ARGS__)
> +
> +#define siw_dbg_pd(pd, fmt, ...) \
> + siw_dbg(pd->sdev, "[PD %u]: " fmt, pd->base_pd.res.id, ##__VA_ARGS__)
> +
> +#define siw_dbg_mem(mem, fmt, ...) \
> + siw_dbg(mem->sdev, "[MEM 0x%08x]: " fmt, mem->stag, ##__VA_ARGS__)
> +
> +#define siw_dbg_cep(cep, fmt, ...) \
> + siw_dbg(cep->sdev, "[CEP 0x%p]: " fmt, cep, ##__VA_ARGS__)
> +
> +#ifdef DEBUG_HDR
We already talked about it, this DEBUG_HDR is not set and
siw_dprint_hdr() is unreachable.
> +
> +#define siw_dprint_hdr(hdr, qpn, msg) siw_print_hdr(hdr, qpn, msg)
> +
> +#else
> +
> +#define siw_dprint_hdr(hdr, qpn, msg) \
> + do { \
> + } while (0)
> +
> +#endif
> +
> +#endif
> --
> 2.17.2
>
