From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D643A8F58 for ; Mon, 13 Feb 2023 15:05:15 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 54D5BC433EF; Mon, 13 Feb 2023 15:05:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1676300715; bh=zJJ2yQkL2pdi8kVEQ+ngMoe8FDO10cq1aVLGAMXspjc=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ODqQc0qmMT+ZA0hmfRpKMj2vMHAbEu7ZiXWjmFSgvfNi7q2nTeJWZ7uhV4b/Rnt+V Lc/PJycCOjyOw8ZYn0g/fDGOb1/3J0szm2xXXF9l1fhOdd1EGl3eyCvtK1qEPSbxYf DDX9F0fYSTcYPwjhEgAmpJoPDZOanjNJqrq/4CkM= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Shay Drory , Saeed Mahameed , Sasha Levin Subject: [PATCH 5.10 120/139] net/mlx5: fw_tracer, Zero consumer index when reloading the tracer Date: Mon, 13 Feb 2023 15:51:05 +0100 Message-Id: <20230213144752.241810889@linuxfoundation.org> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20230213144745.696901179@linuxfoundation.org> References: <20230213144745.696901179@linuxfoundation.org> User-Agent: quilt/0.67 Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit From: Shay Drory [ Upstream commit 184e1e4474dbcfebc4dbd1fa823a329978f25506 ] When tracer is reloaded, the device will log the traces at the beginning of the log buffer. Also, driver is reading the log buffer in chunks in accordance to the consumer index. Hence, zero consumer index when reloading the tracer. Fixes: 4383cfcc65e7 ("net/mlx5: Add devlink reload") Signed-off-by: Shay Drory Signed-off-by: Saeed Mahameed Signed-off-by: Sasha Levin --- drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c index 76232abfc7863..40d7bfca37499 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c @@ -757,6 +757,7 @@ static int mlx5_fw_tracer_set_mtrc_conf(struct mlx5_fw_tracer *tracer) if (err) mlx5_core_warn(dev, "FWTracer: Failed to set tracer configurations %d\n", err); + tracer->buff.consumer_index = 0; return err; } @@ -821,7 +822,6 @@ static void mlx5_fw_tracer_ownership_change(struct work_struct *work) mlx5_core_dbg(tracer->dev, "FWTracer: ownership changed, current=(%d)\n", tracer->owner); if (tracer->owner) { tracer->owner = false; - tracer->buff.consumer_index = 0; return; } -- 2.39.0