On 21 July 2017 at 11:49, Adrian Hunter <adrian.hunter@xxxxxxxxx> wrote:
> Most of the information needed to issue requests to a CQE is already in
> struct mmc_request and struct mmc_data. Add data block address, some flags,
> and the task id (tag), and allow for cmd being NULL which it is for CQE
> tasks.
>
> Signed-off-by: Adrian Hunter <adrian.hunter@xxxxxxxxx>
> ---
> include/linux/mmc/core.h | 13 +++++++++++--
> include/trace/events/mmc.h | 36 +++++++++++++++++++++++-------------
> 2 files changed, 34 insertions(+), 15 deletions(-)
>
> diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
> index a0c63ea28796..bf1788a224e6 100644
> --- a/include/linux/mmc/core.h
> +++ b/include/linux/mmc/core.h
> @@ -122,11 +122,18 @@ struct mmc_data {
> unsigned int timeout_clks; /* data timeout (in clocks) */
> unsigned int blksz; /* data block size */
> unsigned int blocks; /* number of blocks */
> + unsigned int blk_addr; /* block address */
> int error; /* data error */
> unsigned int flags;
>
> -#define MMC_DATA_WRITE (1 << 8)
> -#define MMC_DATA_READ (1 << 9)
> +#define MMC_DATA_WRITE BIT(8)
> +#define MMC_DATA_READ BIT(9)
> +/* Extra flags used by CQE */
> +#define MMC_DATA_QBR BIT(10) /* CQE queue barrier*/
> +#define MMC_DATA_PRIO BIT(11) /* CQE high priority */
Regarding high priority data requests. I think this can be debated a
bit on how it should be implemented.
If possible, may I suggest we move adding the support for this to the
end of the series? In that way we can discuss it separately and it
won't block us moving forward.
> +#define MMC_DATA_REL_WR BIT(12) /* Reliable write */
What has this bit to do with CQE?
> +#define MMC_DATA_DAT_TAG BIT(13) /* Tag request */
> +#define MMC_DATA_FORCED_PRG BIT(14) /* Forced programming */
>
> unsigned int bytes_xfered;
>
> @@ -153,6 +160,8 @@ struct mmc_request {
>
> /* Allow other commands during this ongoing data transfer or busy wait */
> bool cap_cmd_during_tfr;
> +
> + int tag;
> };
>
> struct mmc_card;
> diff --git a/include/trace/events/mmc.h b/include/trace/events/mmc.h
> index a72f9b94c80b..f30a99ac65b6 100644
> --- a/include/trace/events/mmc.h
> +++ b/include/trace/events/mmc.h
> @@ -29,8 +29,10 @@
> __field(unsigned int, sbc_flags)
> __field(unsigned int, sbc_retries)
> __field(unsigned int, blocks)
> + __field(unsigned int, blk_addr)
> __field(unsigned int, blksz)
> __field(unsigned int, data_flags)
> + __field(int, tag)
> __field(unsigned int, can_retune)
> __field(unsigned int, doing_retune)
> __field(unsigned int, retune_now)
> @@ -42,10 +44,10 @@
> ),
>
> TP_fast_assign(
> - __entry->cmd_opcode = mrq->cmd->opcode;
> - __entry->cmd_arg = mrq->cmd->arg;
> - __entry->cmd_flags = mrq->cmd->flags;
> - __entry->cmd_retries = mrq->cmd->retries;
> + __entry->cmd_opcode = mrq->cmd ? mrq->cmd->opcode : 0;
> + __entry->cmd_arg = mrq->cmd ? mrq->cmd->arg : 0;
> + __entry->cmd_flags = mrq->cmd ? mrq->cmd->flags : 0;
> + __entry->cmd_retries = mrq->cmd ? mrq->cmd->retries : 0;
> __entry->stop_opcode = mrq->stop ? mrq->stop->opcode : 0;
> __entry->stop_arg = mrq->stop ? mrq->stop->arg : 0;
> __entry->stop_flags = mrq->stop ? mrq->stop->flags : 0;
> @@ -56,7 +58,9 @@
> __entry->sbc_retries = mrq->sbc ? mrq->sbc->retries : 0;
> __entry->blksz = mrq->data ? mrq->data->blksz : 0;
> __entry->blocks = mrq->data ? mrq->data->blocks : 0;
> + __entry->blk_addr = mrq->data ? mrq->data->blk_addr : 0;
> __entry->data_flags = mrq->data ? mrq->data->flags : 0;
> + __entry->tag = mrq->tag;
> __entry->can_retune = host->can_retune;
> __entry->doing_retune = host->doing_retune;
> __entry->retune_now = host->retune_now;
> @@ -71,8 +75,8 @@
> "cmd_opcode=%u cmd_arg=0x%x cmd_flags=0x%x cmd_retries=%u "
> "stop_opcode=%u stop_arg=0x%x stop_flags=0x%x stop_retries=%u "
> "sbc_opcode=%u sbc_arg=0x%x sbc_flags=0x%x sbc_retires=%u "
> - "blocks=%u block_size=%u data_flags=0x%x "
> - "can_retune=%u doing_retune=%u retune_now=%u "
> + "blocks=%u block_size=%u blk_addr=%u data_flags=0x%x "
> + "tag=%d can_retune=%u doing_retune=%u retune_now=%u "
> "need_retune=%d hold_retune=%d retune_period=%u",
> __get_str(name), __entry->mrq,
> __entry->cmd_opcode, __entry->cmd_arg,
> @@ -81,7 +85,8 @@
> __entry->stop_flags, __entry->stop_retries,
> __entry->sbc_opcode, __entry->sbc_arg,
> __entry->sbc_flags, __entry->sbc_retries,
> - __entry->blocks, __entry->blksz, __entry->data_flags,
> + __entry->blocks, __entry->blk_addr,
> + __entry->blksz, __entry->data_flags, __entry->tag,
> __entry->can_retune, __entry->doing_retune,
> __entry->retune_now, __entry->need_retune,
> __entry->hold_retune, __entry->retune_period)
> @@ -108,6 +113,7 @@
> __field(unsigned int, sbc_retries)
> __field(unsigned int, bytes_xfered)
> __field(int, data_err)
> + __field(int, tag)
> __field(unsigned int, can_retune)
> __field(unsigned int, doing_retune)
> __field(unsigned int, retune_now)
> @@ -119,10 +125,13 @@
> ),
>
> TP_fast_assign(
> - __entry->cmd_opcode = mrq->cmd->opcode;
> - __entry->cmd_err = mrq->cmd->error;
> - memcpy(__entry->cmd_resp, mrq->cmd->resp, 4);
> - __entry->cmd_retries = mrq->cmd->retries;
> + __entry->cmd_opcode = mrq->cmd ? mrq->cmd->opcode : 0;
> + __entry->cmd_err = mrq->cmd ? mrq->cmd->error : 0;
> + __entry->cmd_resp[0] = mrq->cmd ? mrq->cmd->resp[0] : 0;
> + __entry->cmd_resp[1] = mrq->cmd ? mrq->cmd->resp[1] : 0;
> + __entry->cmd_resp[2] = mrq->cmd ? mrq->cmd->resp[2] : 0;
> + __entry->cmd_resp[3] = mrq->cmd ? mrq->cmd->resp[3] : 0;
> + __entry->cmd_retries = mrq->cmd ? mrq->cmd->retries : 0;
> __entry->stop_opcode = mrq->stop ? mrq->stop->opcode : 0;
> __entry->stop_err = mrq->stop ? mrq->stop->error : 0;
> __entry->stop_resp[0] = mrq->stop ? mrq->stop->resp[0] : 0;
> @@ -139,6 +148,7 @@
> __entry->sbc_retries = mrq->sbc ? mrq->sbc->retries : 0;
> __entry->bytes_xfered = mrq->data ? mrq->data->bytes_xfered : 0;
> __entry->data_err = mrq->data ? mrq->data->error : 0;
> + __entry->tag = mrq->tag;
> __entry->can_retune = host->can_retune;
> __entry->doing_retune = host->doing_retune;
> __entry->retune_now = host->retune_now;
> @@ -154,7 +164,7 @@
> "cmd_retries=%u stop_opcode=%u stop_err=%d "
> "stop_resp=0x%x 0x%x 0x%x 0x%x stop_retries=%u "
> "sbc_opcode=%u sbc_err=%d sbc_resp=0x%x 0x%x 0x%x 0x%x "
> - "sbc_retries=%u bytes_xfered=%u data_err=%d "
> + "sbc_retries=%u bytes_xfered=%u data_err=%d tag=%d "
> "can_retune=%u doing_retune=%u retune_now=%u need_retune=%d "
> "hold_retune=%d retune_period=%u",
> __get_str(name), __entry->mrq,
> @@ -170,7 +180,7 @@
> __entry->sbc_resp[0], __entry->sbc_resp[1],
> __entry->sbc_resp[2], __entry->sbc_resp[3],
> __entry->sbc_retries,
> - __entry->bytes_xfered, __entry->data_err,
> + __entry->bytes_xfered, __entry->data_err, __entry->tag,
> __entry->can_retune, __entry->doing_retune,
> __entry->retune_now, __entry->need_retune,
> __entry->hold_retune, __entry->retune_period)
> --
> 1.9.1
>
Kind regards
Uffe
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