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Subject[PATCH 1/3] soc: fsl: dpio: Adding QMAN multiple enqueue interface.
Date
Update of QMAN the interface to enqueue frame. We now support multiple
enqueue (qbman_swp_enqueue_multiple) and multiple enqueue with
a table of descriptor (qbman_swp_enqueue_multiple_desc).

Signed-off-by: Youri Querry <youri.querry_1@nxp.com>
---
drivers/soc/fsl/dpio/dpio-service.c | 69 ++++++++++++++++++++++++++++--
drivers/soc/fsl/dpio/qbman-portal.c | 83 +++++++++++++++++++++++++++++++------
drivers/soc/fsl/dpio/qbman-portal.h | 24 +++++++++++
include/soc/fsl/dpaa2-io.h | 6 ++-
4 files changed, 165 insertions(+), 17 deletions(-)

diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c
index 518a8e0..cd4f641 100644
--- a/drivers/soc/fsl/dpio/dpio-service.c
+++ b/drivers/soc/fsl/dpio/dpio-service.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright 2014-2016 Freescale Semiconductor Inc.
- * Copyright 2016 NXP
+ * Copyright 2016-2019 NXP
*
*/
#include <linux/types.h>
@@ -433,6 +433,69 @@ int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d,
EXPORT_SYMBOL(dpaa2_io_service_enqueue_fq);

/**
+ * dpaa2_io_service_enqueue_multiple_fq() - Enqueue multiple frames
+ * to a frame queue using one fqid.
+ * @d: the given DPIO service.
+ * @fqid: the given frame queue id.
+ * @fd: the frame descriptor which is enqueued.
+ * @nb: number of frames to be enqueud
+ *
+ * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_multiple_fq(struct dpaa2_io *d,
+ u32 fqid,
+ const struct dpaa2_fd *fd,
+ int nb)
+{
+ struct qbman_eq_desc ed;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ qbman_eq_desc_clear(&ed);
+ qbman_eq_desc_set_no_orp(&ed, 0);
+ qbman_eq_desc_set_fq(&ed, fqid);
+
+ return qbman_swp_enqueue_multiple(d->swp, &ed, fd, 0, nb);
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_multiple_fq);
+
+/**
+ * dpaa2_io_service_enqueue_multiple_desc_fq() - Enqueue multiple frames
+ * to different frame queue using a list of fqids.
+ * @d: the given DPIO service.
+ * @fqid: the given list of frame queue ids.
+ * @fd: the frame descriptor which is enqueued.
+ * @nb: number of frames to be enqueud
+ *
+ * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_multiple_desc_fq(struct dpaa2_io *d,
+ u32 *fqid,
+ const struct dpaa2_fd *fd,
+ int nb)
+{
+ int i;
+ struct qbman_eq_desc ed[32];
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ for (i = 0; i < nb; i++) {
+ qbman_eq_desc_clear(&ed[i]);
+ qbman_eq_desc_set_no_orp(&ed[i], 0);
+ qbman_eq_desc_set_fq(&ed[i], fqid[i]);
+ }
+
+ return qbman_swp_enqueue_multiple_desc(d->swp, &ed[0], fd, nb);
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_multiple_desc_fq);
+
+/**
* dpaa2_io_service_enqueue_qd() - Enqueue a frame to a QD.
* @d: the given DPIO service.
* @qdid: the given queuing destination id.
@@ -526,7 +589,7 @@ EXPORT_SYMBOL_GPL(dpaa2_io_service_acquire);

/**
* dpaa2_io_store_create() - Create the dma memory storage for dequeue result.
- * @max_frames: the maximum number of dequeued result for frames, must be <= 16.
+ * @max_frames: the maximum number of dequeued result for frames, must be <= 32.
* @dev: the device to allow mapping/unmapping the DMAable region.
*
* The size of the storage is "max_frames*sizeof(struct dpaa2_dq)".
@@ -541,7 +604,7 @@ struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames,
struct dpaa2_io_store *ret;
size_t size;

- if (!max_frames || (max_frames > 16))
+ if (!max_frames || (max_frames > 32))
return NULL;

ret = kmalloc(sizeof(*ret), GFP_KERNEL);
diff --git a/drivers/soc/fsl/dpio/qbman-portal.c b/drivers/soc/fsl/dpio/qbman-portal.c
index c66f5b7..5a37ac8 100644
--- a/drivers/soc/fsl/dpio/qbman-portal.c
+++ b/drivers/soc/fsl/dpio/qbman-portal.c
@@ -1,7 +1,7 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
- * Copyright 2016 NXP
+ * Copyright 2016-2019 NXP
*
*/

@@ -12,13 +12,6 @@

#include "qbman-portal.h"

-#define QMAN_REV_4000 0x04000000
-#define QMAN_REV_4100 0x04010000
-#define QMAN_REV_4101 0x04010001
-#define QMAN_REV_5000 0x05000000
-
-#define QMAN_REV_MASK 0xffff0000
-
/* All QBMan command and result structures use this "valid bit" encoding */
#define QB_VALID_BIT ((u32)0x80)

@@ -156,7 +149,7 @@ static inline u32 qbman_set_swp_cfg(u8 max_fill, u8 wn, u8 est, u8 rpm, u8 dcm,
*/
struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
{
- struct qbman_swp *p = kmalloc(sizeof(*p), GFP_KERNEL);
+ struct qbman_swp *p = kzalloc(sizeof(*p), GFP_KERNEL);
u32 reg;

if (!p)
@@ -467,22 +460,32 @@ static inline void qbman_write_eqcr_am_rt_register(struct qbman_swp *p,
int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
const struct dpaa2_fd *fd)
{
- struct qbman_eq_desc *p;
+ struct qbman_eq_desc_with_fd *p;
u32 eqar = qbman_read_register(s, QBMAN_CINH_SWP_EQAR);

if (!EQAR_SUCCESS(eqar))
return -EBUSY;

p = qbman_get_cmd(s, QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar)));
- memcpy(&p->dca, &d->dca, 31);
+ /* This is mapped as DEVICE type memory, writes are
+ * with address alignment:
+ * desc.dca address alignment = 1
+ * desc.seqnum address alignment = 2
+ * desc.orpid address alignment = 4
+ * desc.tgtid address alignment = 8
+ */
+ p->desc.dca = d->dca;
+ p->desc.seqnum = d->seqnum;
+ p->desc.orpid = d->orpid;
+ memcpy(&p->desc.tgtid, &d->tgtid, 24);
memcpy(&p->fd, fd, sizeof(*fd));

if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000) {
/* Set the verb byte, have to substitute in the valid-bit */
dma_wmb();
- p->verb = d->verb | EQAR_VB(eqar);
+ p->desc.verb = d->verb | EQAR_VB(eqar);
} else {
- p->verb = d->verb | EQAR_VB(eqar);
+ p->desc.verb = d->verb | EQAR_VB(eqar);
dma_wmb();
qbman_write_eqcr_am_rt_register(s, EQAR_IDX(eqar));
}
@@ -490,6 +493,60 @@ int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
return 0;
}

+/**
+ * qbman_swp_enqueue_multiple() - Issue a multi enqueue command
+ * using one enqueue descriptor
+ * @s: the software portal used for enqueue
+ * @d: the enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @flags: table pointer of flags, not used for the moment
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+int qbman_swp_enqueue_multiple(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames)
+{
+ int count = 0;
+
+ while (count < num_frames) {
+ if (qbman_swp_enqueue(s, d, fd) != 0)
+ break;
+ count++;
+ }
+
+ return count;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_desc() - Issue a multi enqueue command
+ * using multiple enqueue descriptor
+ * @s: the software portal used for enqueue
+ * @d: table of minimal enqueue descriptor
+ * @fd: table pointer of frame descriptor table to be enqueued
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+int qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ int num_frames)
+{
+ int count = 0;
+
+ while (count < num_frames) {
+ if (qbman_swp_enqueue(s, &(d[count]), fd) != 0)
+ break;
+ count++;
+ }
+
+ return count;
+}
+
/* Static (push) dequeue */

/**
diff --git a/drivers/soc/fsl/dpio/qbman-portal.h b/drivers/soc/fsl/dpio/qbman-portal.h
index f3ec5d2..ac58a97 100644
--- a/drivers/soc/fsl/dpio/qbman-portal.h
+++ b/drivers/soc/fsl/dpio/qbman-portal.h
@@ -9,6 +9,13 @@

#include <soc/fsl/dpaa2-fd.h>

+#define QMAN_REV_4000 0x04000000
+#define QMAN_REV_4100 0x04010000
+#define QMAN_REV_4101 0x04010001
+#define QMAN_REV_5000 0x05000000
+
+#define QMAN_REV_MASK 0xffff0000
+
struct dpaa2_dq;
struct qbman_swp;

@@ -81,6 +88,10 @@ struct qbman_eq_desc {
u8 wae;
u8 rspid;
__le64 rsp_addr;
+};
+
+struct qbman_eq_desc_with_fd {
+ struct qbman_eq_desc desc;
u8 fd[32];
};

@@ -193,6 +204,19 @@ void *qbman_swp_mc_start(struct qbman_swp *p);
void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb);
void *qbman_swp_mc_result(struct qbman_swp *p);

+int
+qbman_swp_enqueue_multiple(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames);
+
+int
+qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ int num_frames);
+
/**
* qbman_result_is_DQ() - check if the dequeue result is a dequeue response
* @dq: the dequeue result to be checked
diff --git a/include/soc/fsl/dpaa2-io.h b/include/soc/fsl/dpaa2-io.h
index 672cfb5..c9d8499 100644
--- a/include/soc/fsl/dpaa2-io.h
+++ b/include/soc/fsl/dpaa2-io.h
@@ -1,7 +1,7 @@
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
/*
* Copyright 2014-2016 Freescale Semiconductor Inc.
- * Copyright NXP
+ * Copyright 2017-2019 NXP
*
*/
#ifndef __FSL_DPAA2_IO_H
@@ -109,6 +109,10 @@ int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid,

int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, u32 fqid,
const struct dpaa2_fd *fd);
+int dpaa2_io_service_enqueue_multiple_fq(struct dpaa2_io *d, u32 fqid,
+ const struct dpaa2_fd *fd, int number_of_frame);
+int dpaa2_io_service_enqueue_multiple_desc_fq(struct dpaa2_io *d, u32 *fqid,
+ const struct dpaa2_fd *fd, int number_of_frame);
int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, u32 qdid, u8 prio,
u16 qdbin, const struct dpaa2_fd *fd);
int dpaa2_io_service_release(struct dpaa2_io *d, u16 bpid,
--
2.7.4
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