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Message-ID: <ZhKQCego3QV_fkeW@matsya>
Date: Sun, 7 Apr 2024 17:52:33 +0530
From: Vinod Koul <vkoul@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
imx@...ts.linux.dev
Subject: Re: [PATCH 4/4] dmaengine: fsl-dpaa2-qdma: Update DPDMAI interfaces
to version 3
On 20-03-24, 15:39, Frank Li wrote:
> Update the DPDMAI interfaces to support MC firmware up to 10.1x.x.
and what are these changes? Pls add them to log here...
>
> Signed-off-by: Frank Li <Frank.Li@....com>
> ---
> drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.c | 14 ++++-----
> drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h | 5 ++--
> drivers/dma/fsl-dpaa2-qdma/dpdmai.c | 53 ++++++++++++++++++++++++---------
> drivers/dma/fsl-dpaa2-qdma/dpdmai.h | 35 ++++++++++++++--------
> 4 files changed, 72 insertions(+), 35 deletions(-)
>
> diff --git a/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.c b/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.c
> index 5a8061a307cda..36384d0192636 100644
> --- a/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.c
> +++ b/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.c
> @@ -362,7 +362,7 @@ static int __cold dpaa2_qdma_setup(struct fsl_mc_device *ls_dev)
>
> for (i = 0; i < priv->num_pairs; i++) {
> err = dpdmai_get_rx_queue(priv->mc_io, 0, ls_dev->mc_handle,
> - i, &priv->rx_queue_attr[i]);
> + i, 0, &priv->rx_queue_attr[i]);
> if (err) {
> dev_err(dev, "dpdmai_get_rx_queue() failed\n");
> goto exit;
> @@ -370,13 +370,13 @@ static int __cold dpaa2_qdma_setup(struct fsl_mc_device *ls_dev)
> ppriv->rsp_fqid = priv->rx_queue_attr[i].fqid;
>
> err = dpdmai_get_tx_queue(priv->mc_io, 0, ls_dev->mc_handle,
> - i, &priv->tx_fqid[i]);
> + i, 0, &priv->tx_queue_attr[i]);
> if (err) {
> dev_err(dev, "dpdmai_get_tx_queue() failed\n");
> goto exit;
> }
> - ppriv->req_fqid = priv->tx_fqid[i];
> - ppriv->prio = i;
> + ppriv->req_fqid = priv->tx_queue_attr[i].fqid;
> + ppriv->prio = DPAA2_QDMA_DEFAULT_PRIORITY;
> ppriv->priv = priv;
> ppriv++;
> }
> @@ -542,7 +542,7 @@ static int __cold dpaa2_dpdmai_bind(struct dpaa2_qdma_priv *priv)
> rx_queue_cfg.dest_cfg.dest_id = ppriv->nctx.dpio_id;
> rx_queue_cfg.dest_cfg.priority = ppriv->prio;
> err = dpdmai_set_rx_queue(priv->mc_io, 0, ls_dev->mc_handle,
> - rx_queue_cfg.dest_cfg.priority,
> + rx_queue_cfg.dest_cfg.priority, 0,
> &rx_queue_cfg);
> if (err) {
> dev_err(dev, "dpdmai_set_rx_queue() failed\n");
> @@ -642,7 +642,7 @@ static int dpaa2_dpdmai_init_channels(struct dpaa2_qdma_engine *dpaa2_qdma)
> for (i = 0; i < dpaa2_qdma->n_chans; i++) {
> dpaa2_chan = &dpaa2_qdma->chans[i];
> dpaa2_chan->qdma = dpaa2_qdma;
> - dpaa2_chan->fqid = priv->tx_fqid[i % num];
> + dpaa2_chan->fqid = priv->tx_queue_attr[i % num].fqid;
> dpaa2_chan->vchan.desc_free = dpaa2_qdma_free_desc;
> vchan_init(&dpaa2_chan->vchan, &dpaa2_qdma->dma_dev);
> spin_lock_init(&dpaa2_chan->queue_lock);
> @@ -802,7 +802,7 @@ static void dpaa2_qdma_shutdown(struct fsl_mc_device *ls_dev)
> dpdmai_disable(priv->mc_io, 0, ls_dev->mc_handle);
> dpaa2_dpdmai_dpio_unbind(priv);
> dpdmai_close(priv->mc_io, 0, ls_dev->mc_handle);
> - dpdmai_destroy(priv->mc_io, 0, ls_dev->mc_handle);
> + dpdmai_destroy(priv->mc_io, 0, priv->dpqdma_id, ls_dev->mc_handle);
> }
>
> static const struct fsl_mc_device_id dpaa2_qdma_id_table[] = {
> diff --git a/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h b/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h
> index 03e2f4e0baca8..2c80077cb7c0a 100644
> --- a/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h
> +++ b/drivers/dma/fsl-dpaa2-qdma/dpaa2-qdma.h
> @@ -6,6 +6,7 @@
>
> #define DPAA2_QDMA_STORE_SIZE 16
> #define NUM_CH 8
> +#define DPAA2_QDMA_DEFAULT_PRIORITY 0
>
> struct dpaa2_qdma_sd_d {
> u32 rsv:32;
> @@ -122,8 +123,8 @@ struct dpaa2_qdma_priv {
> struct dpaa2_qdma_engine *dpaa2_qdma;
> struct dpaa2_qdma_priv_per_prio *ppriv;
>
> - struct dpdmai_rx_queue_attr rx_queue_attr[DPDMAI_PRIO_NUM];
> - u32 tx_fqid[DPDMAI_PRIO_NUM];
> + struct dpdmai_rx_queue_attr rx_queue_attr[DPDMAI_MAX_QUEUE_NUM];
> + struct dpdmai_tx_queue_attr tx_queue_attr[DPDMAI_MAX_QUEUE_NUM];
> };
>
> struct dpaa2_qdma_priv_per_prio {
> diff --git a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
> index 610f6231835a8..7fbe925831b8b 100644
> --- a/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
> +++ b/drivers/dma/fsl-dpaa2-qdma/dpdmai.c
> @@ -1,42 +1,58 @@
> // SPDX-License-Identifier: GPL-2.0
> // Copyright 2019 NXP
>
> +#include <linux/bitfield.h>
> #include <linux/module.h>
> #include <linux/types.h>
> #include <linux/io.h>
> #include <linux/fsl/mc.h>
> #include "dpdmai.h"
>
> +#define DEST_TYPE_MASK 0xF
> +
> struct dpdmai_rsp_get_attributes {
> __le32 id;
> u8 num_of_priorities;
> - u8 pad0[3];
> + u8 num_of_queues;
> + u8 pad0[2];
> __le16 major;
> __le16 minor;
> };
>
> struct dpdmai_cmd_queue {
> __le32 dest_id;
> - u8 priority;
> - u8 queue;
> + u8 dest_priority;
> + union {
> + u8 queue;
> + u8 pri;
> + };
> u8 dest_type;
> - u8 pad;
> + u8 queue_idx;
> __le64 user_ctx;
> union {
> __le32 options;
> __le32 fqid;
> };
> -};
> +} __packed;
>
> struct dpdmai_rsp_get_tx_queue {
> __le64 pad;
> __le32 fqid;
> };
>
> +struct dpdmai_rsp_is_enabled {
> + /* only the LSB bit */
> + u8 en;
> +} __packed;
> +
> struct dpdmai_cmd_open {
> __le32 dpdmai_id;
> } __packed;
>
> +struct dpdmai_cmd_destroy {
> + __le32 dpdmai_id;
> +} __packed;
> +
> static inline u64 mc_enc(int lsoffset, int width, u64 val)
> {
> return (val & MAKE_UMASK64(width)) << lsoffset;
> @@ -113,18 +129,23 @@ EXPORT_SYMBOL_GPL(dpdmai_close);
> * dpdmai_destroy() - Destroy the DPDMAI object and release all its resources.
> * @mc_io: Pointer to MC portal's I/O object
> * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
> + * @dpdmai_id: The object id; it must be a valid id within the container that created this object;
> * @token: Token of DPDMAI object
> *
> * Return: '0' on Success; error code otherwise.
> */
> -int dpdmai_destroy(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
> +int dpdmai_destroy(struct fsl_mc_io *mc_io, u32 cmd_flags, u32 dpdmai_id, u16 token)
> {
> + struct dpdmai_cmd_destroy *cmd_params;
> struct fsl_mc_command cmd = { 0 };
>
> /* prepare command */
> cmd.header = mc_encode_cmd_header(DPDMAI_CMDID_DESTROY,
> cmd_flags, token);
>
> + cmd_params = (struct dpdmai_cmd_destroy *)&cmd.params;
> + cmd_params->dpdmai_id = cpu_to_le32(dpdmai_id);
> +
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> }
> @@ -224,6 +245,7 @@ int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
> attr->version.major = le16_to_cpu(rsp_params->major);
> attr->version.minor = le16_to_cpu(rsp_params->minor);
> attr->num_of_priorities = rsp_params->num_of_priorities;
> + attr->num_of_queues = rsp_params->num_of_queues;
>
> return 0;
> }
> @@ -240,7 +262,7 @@ EXPORT_SYMBOL_GPL(dpdmai_get_attributes);
> *
> * Return: '0' on Success; Error code otherwise.
> */
> -int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
> +int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u8 queue_idx,
> u8 priority, const struct dpdmai_rx_queue_cfg *cfg)
> {
> struct dpdmai_cmd_queue *cmd_params;
> @@ -252,11 +274,12 @@ int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
>
> cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
> cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
> - cmd_params->priority = cfg->dest_cfg.priority;
> - cmd_params->queue = priority;
> + cmd_params->dest_priority = cfg->dest_cfg.priority;
> + cmd_params->pri = priority;
> cmd_params->dest_type = cfg->dest_cfg.dest_type;
> cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
> cmd_params->options = cpu_to_le32(cfg->options);
> + cmd_params->queue_idx = queue_idx;
>
> /* send command to mc*/
> return mc_send_command(mc_io, &cmd);
> @@ -274,7 +297,7 @@ EXPORT_SYMBOL_GPL(dpdmai_set_rx_queue);
> *
> * Return: '0' on Success; Error code otherwise.
> */
> -int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
> +int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u8 queue_idx,
> u8 priority, struct dpdmai_rx_queue_attr *attr)
> {
> struct dpdmai_cmd_queue *cmd_params;
> @@ -287,6 +310,7 @@ int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
>
> cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
> cmd_params->queue = priority;
> + cmd_params->queue_idx = queue_idx;
>
> /* send command to mc*/
> err = mc_send_command(mc_io, &cmd);
> @@ -295,8 +319,8 @@ int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
>
> /* retrieve response parameters */
> attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id);
> - attr->dest_cfg.priority = cmd_params->priority;
> - attr->dest_cfg.dest_type = cmd_params->dest_type;
> + attr->dest_cfg.priority = cmd_params->dest_priority;
> + attr->dest_cfg.dest_type = FIELD_GET(DEST_TYPE_MASK, cmd_params->dest_type);
> attr->user_ctx = le64_to_cpu(cmd_params->user_ctx);
> attr->fqid = le32_to_cpu(cmd_params->fqid);
>
> @@ -316,7 +340,7 @@ EXPORT_SYMBOL_GPL(dpdmai_get_rx_queue);
> * Return: '0' on Success; Error code otherwise.
> */
> int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
> - u16 token, u8 priority, u32 *fqid)
> + u16 token, u8 queue_idx, u8 priority, struct dpdmai_tx_queue_attr *attr)
> {
> struct dpdmai_rsp_get_tx_queue *rsp_params;
> struct dpdmai_cmd_queue *cmd_params;
> @@ -329,6 +353,7 @@ int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
>
> cmd_params = (struct dpdmai_cmd_queue *)cmd.params;
> cmd_params->queue = priority;
> + cmd_params->queue_idx = queue_idx;
>
> /* send command to mc*/
> err = mc_send_command(mc_io, &cmd);
> @@ -338,7 +363,7 @@ int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
> /* retrieve response parameters */
>
> rsp_params = (struct dpdmai_rsp_get_tx_queue *)cmd.params;
> - *fqid = le32_to_cpu(rsp_params->fqid);
> + attr->fqid = le32_to_cpu(rsp_params->fqid);
>
> return 0;
> }
> diff --git a/drivers/dma/fsl-dpaa2-qdma/dpdmai.h b/drivers/dma/fsl-dpaa2-qdma/dpdmai.h
> index 3f2db582509a1..1efca2a305334 100644
> --- a/drivers/dma/fsl-dpaa2-qdma/dpdmai.h
> +++ b/drivers/dma/fsl-dpaa2-qdma/dpdmai.h
> @@ -5,14 +5,19 @@
> #define __FSL_DPDMAI_H
>
> /* DPDMAI Version */
> -#define DPDMAI_VER_MAJOR 2
> -#define DPDMAI_VER_MINOR 2
> +#define DPDMAI_VER_MAJOR 3
> +#define DPDMAI_VER_MINOR 3
>
> -#define DPDMAI_CMD_BASE_VERSION 0
> +#define DPDMAI_CMD_BASE_VERSION 1
> #define DPDMAI_CMD_ID_OFFSET 4
>
> -#define DPDMAI_CMDID_FORMAT(x) (((x) << DPDMAI_CMD_ID_OFFSET) | \
> - DPDMAI_CMD_BASE_VERSION)
> +/*
> + * Maximum number of Tx/Rx queues per DPDMAI object
> + */
> +#define DPDMAI_MAX_QUEUE_NUM 8
> +
> +#define DPDMAI_CMDID_FORMAT_V(x, v) (((x) << DPDMAI_CMD_ID_OFFSET) | (v))
> +#define DPDMAI_CMDID_FORMAT(x) DPDMAI_CMDID_FORMAT_V(x, DPDMAI_CMD_BASE_VERSION)
>
> /* Command IDs */
> #define DPDMAI_CMDID_CLOSE DPDMAI_CMDID_FORMAT(0x800)
> @@ -26,9 +31,9 @@
> #define DPDMAI_CMDID_RESET DPDMAI_CMDID_FORMAT(0x005)
> #define DPDMAI_CMDID_IS_ENABLED DPDMAI_CMDID_FORMAT(0x006)
>
> -#define DPDMAI_CMDID_SET_RX_QUEUE DPDMAI_CMDID_FORMAT(0x1A0)
> -#define DPDMAI_CMDID_GET_RX_QUEUE DPDMAI_CMDID_FORMAT(0x1A1)
> -#define DPDMAI_CMDID_GET_TX_QUEUE DPDMAI_CMDID_FORMAT(0x1A2)
> +#define DPDMAI_CMDID_SET_RX_QUEUE DPDMAI_CMDID_FORMAT_V(0x1A0, 2)
> +#define DPDMAI_CMDID_GET_RX_QUEUE DPDMAI_CMDID_FORMAT_V(0x1A1, 2)
> +#define DPDMAI_CMDID_GET_TX_QUEUE DPDMAI_CMDID_FORMAT_V(0x1A2, 2)
>
> #define MC_CMD_HDR_TOKEN_O 32 /* Token field offset */
> #define MC_CMD_HDR_TOKEN_S 16 /* Token field size */
> @@ -64,6 +69,7 @@
> * should be configured with 0
> */
> struct dpdmai_cfg {
> + u8 num_queues;
> u8 priorities[DPDMAI_PRIO_NUM];
> };
>
> @@ -85,6 +91,7 @@ struct dpdmai_attr {
> u16 minor;
> } version;
> u8 num_of_priorities;
> + u8 num_of_queues;
> };
>
> /**
> @@ -149,20 +156,24 @@ struct dpdmai_rx_queue_attr {
> u32 fqid;
> };
>
> +struct dpdmai_tx_queue_attr {
> + u32 fqid;
> +};
> +
> int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,
> int dpdmai_id, u16 *token);
> int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
> -int dpdmai_destroy(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
> +int dpdmai_destroy(struct fsl_mc_io *mc_io, u32 cmd_flags, u32 dpdmai_id, u16 token);
> int dpdmai_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
> int dpdmai_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
> int dpdmai_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
> int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
> u16 token, struct dpdmai_attr *attr);
> int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
> - u8 priority, const struct dpdmai_rx_queue_cfg *cfg);
> + u8 queue_idx, u8 priority, const struct dpdmai_rx_queue_cfg *cfg);
> int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
> - u8 priority, struct dpdmai_rx_queue_attr *attr);
> + u8 queue_idx, u8 priority, struct dpdmai_rx_queue_attr *attr);
> int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
> - u16 token, u8 priority, u32 *fqid);
> + u16 token, u8 queue_idx, u8 priority, struct dpdmai_tx_queue_attr *attr);
>
> #endif /* __FSL_DPDMAI_H */
>
> --
> 2.34.1
--
~Vinod
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