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Date:   Mon, 4 Feb 2019 15:51:25 +0100
From:   Jiri Pirko <jiri@...nulli.us>
To:     Jakub Kicinski <jakub.kicinski@...ronome.com>
Cc:     idosch@...lanox.com, dsahern@...il.com, stephen@...workplumber.org,
        oss-drivers@...ronome.com, netdev@...r.kernel.org
Subject: Re: [PATCH iproute2-next v2] devlink: report cell size

Mon, Feb 04, 2019 at 03:44:42PM CET, jakub.kicinski@...ronome.com wrote:
>Print the value of DEVLINK_ATTR_SB_POOL_CELL_SIZE, if reported.
>
>Example:
>pci/0000:82:00.0:
>  sb 1 pool 0 type egress size 40945664 thtype static cell_size 2048
>  sb 2 pool 0 type egress size 258867200 thtype static cell_size 10240
>...
>
>v2: - fix spelling.
>
>Signed-off-by: Jakub Kicinski <jakub.kicinski@...ronome.com>
>Reviewed-by: Quentin Monnet <quentin.monnet@...ronome.com>
>---
> devlink/devlink.c     |  3 +++
> man/man8/devlink-sb.8 | 10 ++++++++++
> 2 files changed, 13 insertions(+)
>
>diff --git a/devlink/devlink.c b/devlink/devlink.c
>index fc4b18d1b613..40f6105af109 100644
>--- a/devlink/devlink.c
>+++ b/devlink/devlink.c
>@@ -2891,6 +2891,9 @@ static void pr_out_sb_pool(struct dl *dl, struct nlattr **tb)
> 		    mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_POOL_SIZE]));
> 	pr_out_str(dl, "thtype",
> 		   threshold_type_name(mnl_attr_get_u8(tb[DEVLINK_ATTR_SB_POOL_THRESHOLD_TYPE])));
>+	if (tb[DEVLINK_ATTR_SB_POOL_CELL_SIZE])
>+		pr_out_uint(dl, "cell_size",
>+			    mnl_attr_get_u32(tb[DEVLINK_ATTR_SB_POOL_CELL_SIZE]));
> 	pr_out_handle_end(dl);
> }
> 
>diff --git a/man/man8/devlink-sb.8 b/man/man8/devlink-sb.8
>index 1882833a3fa7..0deacd9ccd23 100644
>--- a/man/man8/devlink-sb.8
>+++ b/man/man8/devlink-sb.8
>@@ -128,6 +128,16 @@ Behaviour of this argument it the same for every command.
> - specifies the devlink device to show pools.
> If this argument is omitted all pools of all devices are listed.
> 
>+Display available pools listing their
>+.B type, size, thtype
>+and
>+.B cell_size. cell_size
>+is the allocation granularity of memory within the shared buffer.  Drivers

Double space. Other than this nit, looks fine to me.


>+may round up, round down or reject
>+.B size
>+passed to the set command if it is not multiple of
>+.B cell_size.
>+
> .SS devlink sb pool set - set attributes of pool
> 
> .PP
>-- 
>2.19.2
>

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