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From: Vinod Koul <vkoul@kernel.org>
To: Peter Ujfalusi <peter.ujfalusi@ti.com>
Cc: robh+dt@kernel.org, nm@ti.com, ssantosh@kernel.org,
	dan.j.williams@intel.com, dmaengine@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, grygorii.strashko@ti.com,
	lokeshvutla@ti.com, t-kristo@ti.com, tony@atomide.com,
	j-keerthy@ti.com
Subject: Re: [PATCH v2 06/14] dmaengine: ti: Add cppi5 header for UDMA
Date: Sun, 8 Sep 2019 19:55:28 +0530
Message-ID: <20190908142528.GP2672@vkoul-mobl> (raw)
In-Reply-To: <20190730093450.12664-7-peter.ujfalusi@ti.com>

On 30-07-19, 12:34, Peter Ujfalusi wrote:

> +/**
> + * Descriptor header, present in all types of descriptors
> + */
> +struct cppi5_desc_hdr_t {
> +	u32 pkt_info0;	/* Packet info word 0 (n/a in Buffer desc) */
> +	u32 pkt_info1;	/* Packet info word 1 (n/a in Buffer desc) */
> +	u32 pkt_info2;	/* Packet info word 2 Buffer reclamation info */
> +	u32 src_dst_tag; /* Packet info word 3 (n/a in Buffer desc) */

Can we move these comments to kernel-doc style please

> +/**
> + * cppi5_desc_get_type - get descriptor type
> + * @desc_hdr: packet descriptor/TR header
> + *
> + * Returns descriptor type:
> + * CPPI5_INFO0_DESC_TYPE_VAL_HOST
> + * CPPI5_INFO0_DESC_TYPE_VAL_MONO
> + * CPPI5_INFO0_DESC_TYPE_VAL_TR
> + */
> +static inline u32 cppi5_desc_get_type(struct cppi5_desc_hdr_t *desc_hdr)
> +{
> +	WARN_ON(!desc_hdr);

why WARN_ON and not return error!

> +/**
> + * cppi5_hdesc_calc_size - Calculate Host Packet Descriptor size
> + * @epib: is EPIB present
> + * @psdata_size: PSDATA size
> + * @sw_data_size: SWDATA size
> + *
> + * Returns required Host Packet Descriptor size
> + * 0 - if PSDATA > CPPI5_INFO0_HDESC_PSDATA_MAX_SIZE
> + */
> +static inline u32 cppi5_hdesc_calc_size(bool epib, u32 psdata_size,
> +					u32 sw_data_size)
> +{
> +	u32 desc_size;
> +
> +	if (psdata_size > CPPI5_INFO0_HDESC_PSDATA_MAX_SIZE)
> +		return 0;
> +	//TODO_GS: align

:)

-- 
~Vinod

  reply index

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-30  9:34 [PATCH v2 00/14] dmaengine/soc: Add Texas Instruments UDMA support Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 01/14] bindings: soc: ti: add documentation for k3 ringacc Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 02/14] soc: ti: k3: add navss ringacc driver Peter Ujfalusi
2019-08-30 12:57   ` Peter Ujfalusi
2019-09-09  6:09   ` Tero Kristo
2019-09-09  7:25     ` Vignesh Raghavendra
2019-09-09 13:00     ` Peter Ujfalusi
2019-09-09 16:58       ` Grygorii Strashko
2019-07-30  9:34 ` [PATCH v2 03/14] dmaengine: doc: Add sections for per descriptor metadata support Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 04/14] dmaengine: Add metadata_ops for dma_async_tx_descriptor Peter Ujfalusi
2019-09-08 14:12   ` Vinod Koul
2019-09-09  6:52     ` Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 05/14] dmaengine: Add support for reporting DMA cached data amount Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 06/14] dmaengine: ti: Add cppi5 header for UDMA Peter Ujfalusi
2019-09-08 14:25   ` Vinod Koul [this message]
2019-09-09 10:59     ` Peter Ujfalusi
2019-09-10  7:06       ` Grygorii Strashko
2019-07-30  9:34 ` [PATCH v2 07/14] dt-bindings: dma: ti: Add document for K3 UDMA Peter Ujfalusi
2019-08-21 17:59   ` Rob Herring
2019-08-22 11:18     ` Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 08/14] dmaengine: ti: New driver for K3 UDMA - split#1: defines, structs, io func Peter Ujfalusi
2019-09-10  7:27   ` Grygorii Strashko
2019-07-30  9:34 ` [PATCH v2 09/14] dmaengine: ti: New driver for K3 UDMA - split#2: probe/remove, xlate and filter_fn Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 10/14] dmaengine: ti: New driver for K3 UDMA - split#3: alloc/free chan_resources Peter Ujfalusi
2019-09-10  7:25   ` Grygorii Strashko
2019-09-10  7:53     ` Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 11/14] dmaengine: ti: New driver for K3 UDMA - split#4: dma_device callbacks 1 Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 12/14] dmaengine: ti: New driver for K3 UDMA - split#5: dma_device callbacks 2 Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 13/14] dmaengine: ti: New driver for K3 UDMA - split#6: Kconfig and Makefile Peter Ujfalusi
2019-07-30  9:34 ` [PATCH v2 14/14] dmaengine: ti: k3-udma: Add glue layer for non DMAengine users Peter Ujfalusi
2019-07-31  7:08 ` [PATCH v2 00/14] dmaengine/soc: Add Texas Instruments UDMA support Peter Ujfalusi
2019-08-30 12:12 ` Peter Ujfalusi
2019-09-24 13:54 ` Peter Ujfalusi

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