[PATCH v2] soc: fsl: dpio: Add support for QBMan ring bulk enqueue.

From: Youri Querry
Date: Thu Sep 05 2019 - 15:02:23 EST

The QBMan frame descriptor enqueuing is changed from array
mode (a single frame enqueue at a time) to bulk ring mode.

This new mode allows the enqueuing of multiple frames in one operation.
The original interface is kept but use the bulk enqueue of one frame

Signed-off-by: Youri Querry <youri.querry_1@xxxxxxx>
---
drivers/soc/fsl/dpio/dpio-service.c | 69 +++-
drivers/soc/fsl/dpio/qbman-portal.c | 772 ++++++++++++++++++++++++++++++++----
drivers/soc/fsl/dpio/qbman-portal.h | 175 +++++++-
3 files changed, 935 insertions(+), 81 deletions(-)

diff --git a/drivers/soc/fsl/dpio/dpio-service.c b/drivers/soc/fsl/dpio/dpio-service.c
index b9539ef..4eb53ee 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>
@@ -435,6 +435,69 @@ 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 list of frame descriptors enqueued.
+ * @nb: number of frames to be enqueued
+ *
+ * Return the number of enqueued frames (0 if EQCR is busy)
+ * 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 list of frame descriptors enqueued.
+ * @nb: number of frames to be enqueued
+ *
+ * Return the number of enqueued frames (0 if EQCR is busy)
+ * 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_min ed[32];
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ for (i = 0; i < nb; i++) {
+ qbman_eq_desc_min_clear(&ed[i]);
+ qbman_eq_desc_set_no_orp_min(&ed[i], 0);
+ qbman_eq_desc_set_min_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.
@@ -528,7 +591,7 @@ 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)".
@@ -543,7 +606,7 @@ 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..0ed2c8f 100644
--- a/drivers/soc/fsl/dpio/qbman-portal.c
+++ b/drivers/soc/fsl/dpio/qbman-portal.c
@@ -1,13 +1,14 @@
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
* Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
- * Copyright 2016 NXP
+ * Copyright 2016-2019 NXP
*
*/

#include <asm/cacheflush.h>
#include <linux/io.h>
#include <linux/slab.h>
+#include <linux/spinlock.h>
#include <soc/fsl/dpaa2-global.h>

#include "qbman-portal.h"
@@ -28,6 +29,7 @@

/* CINH register offsets */
#define QBMAN_CINH_SWP_EQCR_PI 0x800
+#define QBMAN_CINH_SWP_EQCR_CI 0x840
#define QBMAN_CINH_SWP_EQAR 0x8c0
#define QBMAN_CINH_SWP_CR_RT 0x900
#define QBMAN_CINH_SWP_VDQCR_RT 0x940
@@ -51,6 +53,8 @@
#define QBMAN_CENA_SWP_CR 0x600
#define QBMAN_CENA_SWP_RR(vb) (0x700 + ((u32)(vb) >> 1))
#define QBMAN_CENA_SWP_VDQCR 0x780
+#define QBMAN_CENA_SWP_EQCR_CI 0x840
+#define QBMAN_CENA_SWP_EQCR_CI_MEMBACK 0x1840

/* CENA register offsets in memory-backed mode */
#define QBMAN_CENA_SWP_DQRR_MEM(n) (0x800 + ((u32)(n) << 6))
@@ -78,6 +82,12 @@
/* opaque token for static dequeues */
#define QMAN_SDQCR_TOKEN 0xbb

+#define QBMAN_EQCR_DCA_IDXMASK 0x0f
+#define QBMAN_ENQUEUE_FLAG_DCA (1ULL << 31)
+
+#define EQ_DESC_SIZE_WITHOUT_FD 29
+#define EQ_DESC_SIZE_FD_START 32
+
enum qbman_sdqcr_dct {
qbman_sdqcr_dct_null = 0,
qbman_sdqcr_dct_prio_ics,
@@ -90,6 +100,82 @@ enum qbman_sdqcr_fc {
qbman_sdqcr_fc_up_to_3 = 1
};

+/* Internal Function declaration */
+static int qbman_swp_enqueue_ring_mode_direct(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd);
+static int qbman_swp_enqueue_ring_mode_mem_back(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd);
+static int qbman_swp_enqueue_multiple_direct(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames);
+static int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames);
+static int
+qbman_swp_enqueue_multiple_desc_direct(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames);
+static
+int qbman_swp_enqueue_multiple_desc_mem_back(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames);
+static int qbman_swp_pull_direct(struct qbman_swp *s,
+ struct qbman_pull_desc *d);
+static int qbman_swp_pull_mem_back(struct qbman_swp *s,
+ struct qbman_pull_desc *d);
+
+const struct dpaa2_dq *qbman_swp_dqrr_next_direct(struct qbman_swp *s);
+const struct dpaa2_dq *qbman_swp_dqrr_next_mem_back(struct qbman_swp *s);
+
+static int qbman_swp_release_direct(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers,
+ unsigned int num_buffers);
+static int qbman_swp_release_mem_back(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers,
+ unsigned int num_buffers);
+
+/* Function pointers */
+int (*qbman_swp_enqueue_ring_mode_ptr)(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd)
+ = qbman_swp_enqueue_ring_mode_direct;
+
+int (*qbman_swp_enqueue_multiple_ptr)(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames)
+ = qbman_swp_enqueue_multiple_direct;
+
+int
+(*qbman_swp_enqueue_multiple_desc_ptr)(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames)
+ = qbman_swp_enqueue_multiple_desc_direct;
+
+int (*qbman_swp_pull_ptr)(struct qbman_swp *s, struct qbman_pull_desc *d)
+ = qbman_swp_pull_direct;
+
+const struct dpaa2_dq *(*qbman_swp_dqrr_next_ptr)(struct qbman_swp *s)
+ = qbman_swp_dqrr_next_direct;
+
+int (*qbman_swp_release_ptr)(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers,
+ unsigned int num_buffers)
+ = qbman_swp_release_direct;
+
/* Portal Access */

static inline u32 qbman_read_register(struct qbman_swp *p, u32 offset)
@@ -146,6 +232,15 @@ static inline u32 qbman_set_swp_cfg(u8 max_fill, u8 wn, u8 est, u8 rpm, u8 dcm,

#define QMAN_RT_MODE 0x00000100

+static inline u8 qm_cyc_diff(u8 ringsize, u8 first, u8 last)
+{
+ /* 'first' is included, 'last' is excluded */
+ if (first <= last)
+ return last - first;
+ else
+ return (2 * ringsize) - (first - last);
+}
+
/**
* qbman_swp_init() - Create a functional object representing the given
* QBMan portal descriptor.
@@ -156,8 +251,12 @@ 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;
+ u32 mask_size;
+ u32 eqcr_pi;
+
+ spin_lock_init(&p->access_spinlock);

if (!p)
return NULL;
@@ -189,22 +288,39 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000)
memset(p->addr_cena, 0, 64 * 1024);

- reg = qbman_set_swp_cfg(p->dqrr.dqrr_size,
- 1, /* Writes Non-cacheable */
- 0, /* EQCR_CI stashing threshold */
- 3, /* RPM: Valid bit mode, RCR in array mode */
- 2, /* DCM: Discrete consumption ack mode */
- 3, /* EPM: Valid bit mode, EQCR in array mode */
- 1, /* mem stashing drop enable == TRUE */
- 1, /* mem stashing priority == TRUE */
- 1, /* mem stashing enable == TRUE */
- 1, /* dequeue stashing priority == TRUE */
- 0, /* dequeue stashing enable == FALSE */
- 0); /* EQCR_CI stashing priority == FALSE */
- if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000)
+ if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000) {
+
+ reg = qbman_set_swp_cfg(p->dqrr.dqrr_size,
+ 0, /* Writes Non-cacheable */
+ 1, /* EQCR_CI stashing threshold */
+ 3, /* RPM: RCR in array mode */
+ 2, /* DCM: Discrete consumption ack */
+ 0, /* EPM: EQCR in ring mode */
+ 1, /* mem stashing drop enable */
+ 1, /* mem stashing priority enable */
+ 1, /* mem stashing enable */
+ 1, /* dequeue stashing priority enable */
+ 0, /* dequeue stashing enable */
+ 0); /* EQCR_CI stashing priority enable */
+ } else {
+ reg = qbman_set_swp_cfg(p->dqrr.dqrr_size,
+ 1, /* Writes Non-cacheable */
+ 0, /* EQCR_CI stashing threshold */
+ 3, /* RPM: RCR in array mode */
+ 2, /* DCM: Discrete consumption ack */
+ 2, /* EPM: EQCR in ring mode */
+ 1, /* mem stashing drop enable enable */
+ 1, /* mem stashing priority enable */
+ 1, /* mem stashing enable */
+ 1, /* dequeue stashing priority enable */
+ 0, /* dequeue stashing enable enable */
+ 0); /* EQCR_CI stashing priority enable */
+ }
+ if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000) {
reg |= 1 << SWP_CFG_CPBS_SHIFT | /* memory-backed mode */
1 << SWP_CFG_VPM_SHIFT | /* VDQCR read triggered mode */
1 << SWP_CFG_CPM_SHIFT; /* CR read triggered mode */
+ }

qbman_write_register(p, QBMAN_CINH_SWP_CFG, reg);
reg = qbman_read_register(p, QBMAN_CINH_SWP_CFG);
@@ -225,6 +341,30 @@ struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
* applied when dequeues from a specific channel are enabled.
*/
qbman_write_register(p, QBMAN_CINH_SWP_SDQCR, 0);
+
+ p->eqcr.pi_ring_size = 8;
+ if ((p->desc->qman_version & QMAN_REV_MASK) >= QMAN_REV_5000) {
+ p->eqcr.pi_ring_size = 32;
+ qbman_swp_enqueue_ring_mode_ptr =
+ qbman_swp_enqueue_ring_mode_mem_back;
+ qbman_swp_enqueue_multiple_ptr =
+ qbman_swp_enqueue_multiple_mem_back;
+ qbman_swp_enqueue_multiple_desc_ptr =
+ qbman_swp_enqueue_multiple_desc_mem_back;
+ qbman_swp_pull_ptr = qbman_swp_pull_mem_back;
+ qbman_swp_dqrr_next_ptr = qbman_swp_dqrr_next_mem_back;
+ qbman_swp_release_ptr = qbman_swp_release_mem_back;
+ }
+
+ for (mask_size = p->eqcr.pi_ring_size; mask_size > 0; mask_size >>= 1)
+ p->eqcr.pi_ci_mask = (p->eqcr.pi_ci_mask << 1) + 1;
+ eqcr_pi = qbman_read_register(p, QBMAN_CINH_SWP_EQCR_PI);
+ p->eqcr.pi = eqcr_pi & p->eqcr.pi_ci_mask;
+ p->eqcr.pi_vb = eqcr_pi & QB_VALID_BIT;
+ p->eqcr.ci = qbman_read_register(p, QBMAN_CINH_SWP_EQCR_CI)
+ & p->eqcr.pi_ci_mask;
+ p->eqcr.available = p->eqcr.pi_ring_size;
+
return p;
}

@@ -378,6 +518,7 @@ enum qb_enqueue_commands {
#define QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT 2
#define QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT 3
#define QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT 4
+#define QB_ENQUEUE_CMD_DCA_EN_SHIFT 7

/**
* qbman_eq_desc_clear() - Clear the contents of a descriptor to
@@ -389,6 +530,16 @@ void qbman_eq_desc_clear(struct qbman_eq_desc *d)
}

/**
+ * qbman_eq_desc_min_clear() - Clear the contents of a minimal
+ * enqueue descriptor to
+ * default/starting state.
+ */
+void qbman_eq_desc_min_clear(struct qbman_eq_desc_min *d)
+{
+ memset(d, 0, sizeof(*d));
+}
+
+/**
* qbman_eq_desc_set_no_orp() - Set enqueue descriptor without orp
* @d: the enqueue descriptor.
* @response_success: 1 = enqueue with response always; 0 = enqueue with
@@ -403,6 +554,22 @@ void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success)
d->verb |= enqueue_rejects_to_fq;
}

+/**
+ * qbman_eq_desc_set_no_orp_min() - Set minimal enqueue descriptor without orp
+ * @d: the enqueue descriptor.
+ * @response_success: 1 = enqueue with response always; 0 = enqueue with
+ * rejections returned on a FQ.
+ */
+void qbman_eq_desc_set_no_orp_min(struct qbman_eq_desc_min *d,
+ int respond_success)
+{
+ d->verb &= ~(1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT);
+ if (respond_success)
+ d->verb |= enqueue_response_always;
+ else
+ d->verb |= enqueue_rejects_to_fq;
+}
+
/*
* Exactly one of the following descriptor "targets" should be set. (Calling any
* one of these will replace the effect of any prior call to one of these.)
@@ -422,6 +589,17 @@ void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid)
}

/**
+ * qbman_eq_desc_set_min_fq() - set the FQ for the minimal enqueue command
+ * @d: the enqueue descriptor
+ * @fqid: the id of the frame queue to be enqueued
+ */
+void qbman_eq_desc_set_min_fq(struct qbman_eq_desc_min *d, u32 fqid)
+{
+ d->verb &= ~(1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT);
+ d->tgtid = cpu_to_le32(fqid);
+}
+
+/**
* qbman_eq_desc_set_qd() - Set Queuing Destination for the enqueue command
* @d: the enqueue descriptor
* @qdid: the id of the queuing destination to be enqueued
@@ -453,41 +631,340 @@ static inline void qbman_write_eqcr_am_rt_register(struct qbman_swp *p,
QMAN_RT_MODE);
}

+#define QB_RT_BIT ((u32)0x100)
/**
- * qbman_swp_enqueue() - Issue an enqueue command
+ * qbman_swp_enqueue_ring_mode_direct() - Issue an enqueue command
* @s: the software portal used for enqueue
* @d: the enqueue descriptor
* @fd: the frame descriptor to be enqueued
*
- * Please note that 'fd' should only be NULL if the "action" of the
- * descriptor is "orp_hole" or "orp_nesn".
+ * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
+ */
+static
+int qbman_swp_enqueue_ring_mode_direct(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd)
+{
+ int flags = 0;
+ int ret = qbman_swp_enqueue_multiple_direct(s, d, fd, &flags, 1);
+
+ if (ret >= 0)
+ ret = 0;
+ else
+ ret = -EBUSY;
+ return ret;
+}
+
+/**
+ * qbman_swp_enqueue_ring_mode_mem_back() - Issue an enqueue command
+ * @s: the software portal used for enqueue
+ * @d: the enqueue descriptor
+ * @fd: the frame descriptor to be enqueued
*
* Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
*/
-int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
- const struct dpaa2_fd *fd)
+static
+int qbman_swp_enqueue_ring_mode_mem_back(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd)
{
- struct qbman_eq_desc *p;
- u32 eqar = qbman_read_register(s, QBMAN_CINH_SWP_EQAR);
+ int flags = 0;
+ int ret = qbman_swp_enqueue_multiple_mem_back(s, d, fd, &flags, 1);

- if (!EQAR_SUCCESS(eqar))
- return -EBUSY;
+ if (ret >= 0)
+ ret = 0;
+ else
+ ret = -EBUSY;
+ return ret;
+}

- p = qbman_get_cmd(s, QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar)));
- memcpy(&p->dca, &d->dca, 31);
- memcpy(&p->fd, fd, sizeof(*fd));
+/**
+ * qbman_swp_enqueue_multiple_direct() - 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 QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static
+int qbman_swp_enqueue_multiple_direct(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames)
+{
+ uint32_t *p = NULL;
+ const uint32_t *cl = (uint32_t *)d;
+ uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+ int i, num_enqueued = 0;
+
+ half_mask = (s->eqcr.pi_ci_mask>>1);
+ full_mask = s->eqcr.pi_ci_mask;
+
+ if (!s->eqcr.available) {
+ eqcr_ci = s->eqcr.ci;
+ p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI;
+ s->eqcr.ci = __raw_readl(p) & full_mask;
+
+ s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+ eqcr_ci, s->eqcr.ci);
+ if (!s->eqcr.available)
+ return 0;
+ }

- 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);
- } else {
- p->verb = d->verb | EQAR_VB(eqar);
- dma_wmb();
- qbman_write_eqcr_am_rt_register(s, EQAR_IDX(eqar));
+ eqcr_pi = s->eqcr.pi;
+ num_enqueued = (s->eqcr.available < num_frames) ?
+ s->eqcr.available : num_frames;
+ s->eqcr.available -= num_enqueued;
+ /* Fill in the EQCR ring */
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ /* Skip copying the verb */
+ memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+ memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+ &fd[i], sizeof(*fd));
+ eqcr_pi++;
}

- return 0;
+ dma_wmb();
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ eqcr_pi = s->eqcr.pi;
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ p[0] = cl[0] | s->eqcr.pi_vb;
+ if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
+ struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
+
+ d->dca = (1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT) |
+ ((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
+ }
+ eqcr_pi++;
+ if (!(eqcr_pi & half_mask))
+ s->eqcr.pi_vb ^= QB_VALID_BIT;
+ }
+
+ s->eqcr.pi = (s->eqcr.pi + num_enqueued) & full_mask;
+
+ return num_enqueued;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_mem_back() - 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 QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static
+int qbman_swp_enqueue_multiple_mem_back(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames)
+{
+ uint32_t *p = NULL;
+ const uint32_t *cl = (uint32_t *)(d);
+ uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+ int i, num_enqueued = 0;
+ unsigned long irq_flags;
+
+ spin_lock(&s->access_spinlock);
+ local_irq_save(irq_flags);
+
+ half_mask = (s->eqcr.pi_ci_mask>>1);
+ full_mask = s->eqcr.pi_ci_mask;
+ if (!s->eqcr.available) {
+ eqcr_ci = s->eqcr.ci;
+ p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI_MEMBACK;
+ s->eqcr.ci = __raw_readl(p) & full_mask;
+ s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+ eqcr_ci, s->eqcr.ci);
+ if (!s->eqcr.available) {
+ local_irq_restore(irq_flags);
+ spin_unlock(&s->access_spinlock);
+ return 0;
+ }
+ }
+
+ eqcr_pi = s->eqcr.pi;
+ num_enqueued = (s->eqcr.available < num_frames) ?
+ s->eqcr.available : num_frames;
+ s->eqcr.available -= num_enqueued;
+ /* Fill in the EQCR ring */
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ /* Skip copying the verb */
+ memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+ memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+ &fd[i], sizeof(*fd));
+ eqcr_pi++;
+ }
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ eqcr_pi = s->eqcr.pi;
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ p[0] = cl[0] | s->eqcr.pi_vb;
+ if (flags && (flags[i] & QBMAN_ENQUEUE_FLAG_DCA)) {
+ struct qbman_eq_desc *d = (struct qbman_eq_desc *)p;
+
+ d->dca = (1 << QB_ENQUEUE_CMD_DCA_EN_SHIFT) |
+ ((flags[i]) & QBMAN_EQCR_DCA_IDXMASK);
+ }
+ eqcr_pi++;
+ if (!(eqcr_pi & half_mask))
+ s->eqcr.pi_vb ^= QB_VALID_BIT;
+ }
+ s->eqcr.pi = eqcr_pi & full_mask;
+
+ dma_wmb();
+ qbman_write_register(s, QBMAN_CINH_SWP_EQCR_PI,
+ (QB_RT_BIT)|(s->eqcr.pi)|s->eqcr.pi_vb);
+ local_irq_restore(irq_flags);
+ spin_unlock(&s->access_spinlock);
+
+ return num_enqueued;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_desc_direct() - 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.
+ */
+static
+int qbman_swp_enqueue_multiple_desc_direct(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames)
+{
+ uint32_t *p;
+ const uint32_t *cl;
+ uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+ int i, num_enqueued = 0;
+
+ half_mask = (s->eqcr.pi_ci_mask>>1);
+ full_mask = s->eqcr.pi_ci_mask;
+ if (!s->eqcr.available) {
+ eqcr_ci = s->eqcr.ci;
+ p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI;
+ s->eqcr.ci = __raw_readl(p) & full_mask;
+ s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+ eqcr_ci, s->eqcr.ci);
+ if (!s->eqcr.available)
+ return 0;
+ }
+
+ eqcr_pi = s->eqcr.pi;
+ num_enqueued = (s->eqcr.available < num_frames) ?
+ s->eqcr.available : num_frames;
+ s->eqcr.available -= num_enqueued;
+ /* Fill in the EQCR ring */
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ cl = (uint32_t *)(&d[i]);
+ /* Skip copying the verb */
+ memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+ memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+ &fd[i], sizeof(*fd));
+ eqcr_pi++;
+ }
+
+ dma_wmb();
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ eqcr_pi = s->eqcr.pi;
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ cl = (uint32_t *)(&d[i]);
+ p[0] = cl[0] | s->eqcr.pi_vb;
+ eqcr_pi++;
+ if (!(eqcr_pi & half_mask))
+ s->eqcr.pi_vb ^= QB_VALID_BIT;
+ }
+ s->eqcr.pi = (s->eqcr.pi + num_enqueued) & full_mask;
+
+ return num_enqueued;
+}
+
+/**
+ * qbman_swp_enqueue_multiple_desc_mem_back() - 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.
+ */
+static
+int qbman_swp_enqueue_multiple_desc_mem_back(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames)
+{
+ uint32_t *p;
+ const uint32_t *cl;
+ uint32_t eqcr_ci, eqcr_pi, half_mask, full_mask;
+ int i, num_enqueued = 0;
+
+ half_mask = (s->eqcr.pi_ci_mask>>1);
+ full_mask = s->eqcr.pi_ci_mask;
+ if (!s->eqcr.available) {
+ eqcr_ci = s->eqcr.ci;
+ p = s->addr_cena + QBMAN_CENA_SWP_EQCR_CI_MEMBACK;
+ s->eqcr.ci = __raw_readl(p) & full_mask;
+ s->eqcr.available = qm_cyc_diff(s->eqcr.pi_ring_size,
+ eqcr_ci, s->eqcr.ci);
+ if (!s->eqcr.available)
+ return 0;
+ }
+
+ eqcr_pi = s->eqcr.pi;
+ num_enqueued = (s->eqcr.available < num_frames) ?
+ s->eqcr.available : num_frames;
+ s->eqcr.available -= num_enqueued;
+ /* Fill in the EQCR ring */
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ cl = (uint32_t *)(&d[i]);
+ /* Skip copying the verb */
+ memcpy(&p[1], &cl[1], EQ_DESC_SIZE_WITHOUT_FD - 1);
+ memcpy(&p[EQ_DESC_SIZE_FD_START/sizeof(uint32_t)],
+ &fd[i], sizeof(*fd));
+ eqcr_pi++;
+ }
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ eqcr_pi = s->eqcr.pi;
+ for (i = 0; i < num_enqueued; i++) {
+ p = (s->addr_cena + QBMAN_CENA_SWP_EQCR(eqcr_pi & half_mask));
+ cl = (uint32_t *)(&d[i]);
+ p[0] = cl[0] | s->eqcr.pi_vb;
+ eqcr_pi++;
+ if (!(eqcr_pi & half_mask))
+ s->eqcr.pi_vb ^= QB_VALID_BIT;
+ }
+
+ s->eqcr.pi = eqcr_pi & full_mask;
+
+ dma_wmb();
+ qbman_write_register(s, QBMAN_CINH_SWP_EQCR_PI,
+ (QB_RT_BIT)|(s->eqcr.pi)|s->eqcr.pi_vb);
+
+ return num_enqueued;
}

/* Static (push) dequeue */
@@ -645,7 +1122,7 @@ void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
}

/**
- * qbman_swp_pull() - Issue the pull dequeue command
+ * qbman_swp_pull_direct() - Issue the pull dequeue command
* @s: the software portal object
* @d: the software portal descriptor which has been configured with
* the set of qbman_pull_desc_set_*() calls
@@ -653,7 +1130,7 @@ void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
* Return 0 for success, and -EBUSY if the software portal is not ready
* to do pull dequeue.
*/
-int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d)
+static int qbman_swp_pull_direct(struct qbman_swp *s, struct qbman_pull_desc *d)
{
struct qbman_pull_desc *p;

@@ -671,18 +1148,48 @@ int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d)
p->dq_src = d->dq_src;
p->rsp_addr = d->rsp_addr;
p->rsp_addr_virt = d->rsp_addr_virt;
+ dma_wmb();
+ /* Set the verb byte, have to substitute in the valid-bit */
+ p->verb = d->verb | s->vdq.valid_bit;
+ s->vdq.valid_bit ^= QB_VALID_BIT;

- if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000) {
- dma_wmb();
- /* Set the verb byte, have to substitute in the valid-bit */
- p->verb = d->verb | s->vdq.valid_bit;
- s->vdq.valid_bit ^= QB_VALID_BIT;
- } else {
- p->verb = d->verb | s->vdq.valid_bit;
- s->vdq.valid_bit ^= QB_VALID_BIT;
- dma_wmb();
- qbman_write_register(s, QBMAN_CINH_SWP_VDQCR_RT, QMAN_RT_MODE);
+ return 0;
+}
+
+/**
+ * qbman_swp_pull_mem_back() - Issue the pull dequeue command
+ * @s: the software portal object
+ * @d: the software portal descriptor which has been configured with
+ * the set of qbman_pull_desc_set_*() calls
+ *
+ * Return 0 for success, and -EBUSY if the software portal is not ready
+ * to do pull dequeue.
+ */
+static int qbman_swp_pull_mem_back(struct qbman_swp *s,
+ struct qbman_pull_desc *d)
+{
+ struct qbman_pull_desc *p;
+
+ if (!atomic_dec_and_test(&s->vdq.available)) {
+ atomic_inc(&s->vdq.available);
+ return -EBUSY;
}
+ s->vdq.storage = (void *)(uintptr_t)d->rsp_addr_virt;
+ if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000)
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR);
+ else
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR_MEM);
+ p->numf = d->numf;
+ p->tok = QMAN_DQ_TOKEN_VALID;
+ p->dq_src = d->dq_src;
+ p->rsp_addr = d->rsp_addr;
+ p->rsp_addr_virt = d->rsp_addr_virt;
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ p->verb = d->verb | s->vdq.valid_bit;
+ s->vdq.valid_bit ^= QB_VALID_BIT;
+ dma_wmb();
+ qbman_write_register(s, QBMAN_CINH_SWP_VDQCR_RT, QMAN_RT_MODE);

return 0;
}
@@ -690,14 +1197,14 @@ int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d)
#define QMAN_DQRR_PI_MASK 0xf

/**
- * qbman_swp_dqrr_next() - Get an valid DQRR entry
+ * qbman_swp_dqrr_next_direct() - Get an valid DQRR entry
* @s: the software portal object
*
* Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
* only once, so repeated calls can return a sequence of DQRR entries, without
* requiring they be consumed immediately or in any particular order.
*/
-const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
+const struct dpaa2_dq *qbman_swp_dqrr_next_direct(struct qbman_swp *s)
{
u32 verb;
u32 response_verb;
@@ -740,10 +1247,7 @@ const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
}

- if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000)
- p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
- else
- p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR_MEM(s->dqrr.next_idx));
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
verb = p->dq.verb;

/*
@@ -785,6 +1289,98 @@ const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
}

/**
+ * qbman_swp_dqrr_next_mem_back() - Get an valid DQRR entry
+ * @s: the software portal object
+ *
+ * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
+ * only once, so repeated calls can return a sequence of DQRR entries, without
+ * requiring they be consumed immediately or in any particular order.
+ */
+const struct dpaa2_dq *qbman_swp_dqrr_next_mem_back(struct qbman_swp *s)
+{
+ u32 verb;
+ u32 response_verb;
+ u32 flags;
+ struct dpaa2_dq *p;
+
+ /* Before using valid-bit to detect if something is there, we have to
+ * handle the case of the DQRR reset bug...
+ */
+ if (unlikely(s->dqrr.reset_bug)) {
+ /*
+ * We pick up new entries by cache-inhibited producer index,
+ * which means that a non-coherent mapping would require us to
+ * invalidate and read *only* once that PI has indicated that
+ * there's an entry here. The first trip around the DQRR ring
+ * will be much less efficient than all subsequent trips around
+ * it...
+ */
+ u8 pi = qbman_read_register(s, QBMAN_CINH_SWP_DQPI) &
+ QMAN_DQRR_PI_MASK;
+
+ /* there are new entries if pi != next_idx */
+ if (pi == s->dqrr.next_idx)
+ return NULL;
+
+ /*
+ * if next_idx is/was the last ring index, and 'pi' is
+ * different, we can disable the workaround as all the ring
+ * entries have now been DMA'd to so valid-bit checking is
+ * repaired. Note: this logic needs to be based on next_idx
+ * (which increments one at a time), rather than on pi (which
+ * can burst and wrap-around between our snapshots of it).
+ */
+ if (s->dqrr.next_idx == (s->dqrr.dqrr_size - 1)) {
+ pr_debug("next_idx=%d, pi=%d, clear reset bug\n",
+ s->dqrr.next_idx, pi);
+ s->dqrr.reset_bug = 0;
+ }
+ prefetch(qbman_get_cmd(s,
+ QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+ }
+
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR_MEM(s->dqrr.next_idx));
+ verb = p->dq.verb;
+
+ /*
+ * If the valid-bit isn't of the expected polarity, nothing there. Note,
+ * in the DQRR reset bug workaround, we shouldn't need to skip these
+ * check, because we've already determined that a new entry is available
+ * and we've invalidated the cacheline before reading it, so the
+ * valid-bit behaviour is repaired and should tell us what we already
+ * knew from reading PI.
+ */
+ if ((verb & QB_VALID_BIT) != s->dqrr.valid_bit) {
+ prefetch(qbman_get_cmd(s,
+ QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+ return NULL;
+ }
+ /*
+ * There's something there. Move "next_idx" attention to the next ring
+ * entry (and prefetch it) before returning what we found.
+ */
+ s->dqrr.next_idx++;
+ s->dqrr.next_idx &= s->dqrr.dqrr_size - 1; /* Wrap around */
+ if (!s->dqrr.next_idx)
+ s->dqrr.valid_bit ^= QB_VALID_BIT;
+
+ /*
+ * If this is the final response to a volatile dequeue command
+ * indicate that the vdq is available
+ */
+ flags = p->dq.stat;
+ response_verb = verb & QBMAN_RESULT_MASK;
+ if (response_verb == QBMAN_RESULT_DQ &&
+ (flags & DPAA2_DQ_STAT_VOLATILE) &&
+ (flags & DPAA2_DQ_STAT_EXPIRED))
+ atomic_inc(&s->vdq.available);
+
+ prefetch(qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx)));
+
+ return p;
+}
+
+/**
* qbman_swp_dqrr_consume() - Consume DQRR entries previously returned from
* qbman_swp_dqrr_next().
* @s: the software portal object
@@ -872,7 +1468,7 @@ void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable)
#define RAR_SUCCESS(rar) ((rar) & 0x100)

/**
- * qbman_swp_release() - Issue a buffer release command
+ * qbman_swp_release_direct() - Issue a buffer release command
* @s: the software portal object
* @d: the release descriptor
* @buffers: a pointer pointing to the buffer address to be released
@@ -880,8 +1476,53 @@ void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable)
*
* Return 0 for success, -EBUSY if the release command ring is not ready.
*/
-int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d,
- const u64 *buffers, unsigned int num_buffers)
+int qbman_swp_release_direct(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers, unsigned int num_buffers)
+{
+ int i;
+ struct qbman_release_desc *p;
+ u32 rar;
+
+ if (!num_buffers || num_buffers > 7)
+ return -EINVAL;
+
+ rar = qbman_read_register(s, QBMAN_CINH_SWP_RAR);
+ if (!RAR_SUCCESS(rar))
+ return -EBUSY;
+
+ /* Start the release command */
+ if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000)
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_RCR(RAR_IDX(rar)));
+ else
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_RCR_MEM(RAR_IDX(rar)));
+ /* Copy the caller's buffer pointers to the command */
+ for (i = 0; i < num_buffers; i++)
+ p->buf[i] = cpu_to_le64(buffers[i]);
+ p->bpid = d->bpid;
+
+ /*
+ * Set the verb byte, have to substitute in the valid-bit
+ * and the number of buffers.
+ */
+ dma_wmb();
+ p->verb = d->verb | RAR_VB(rar) | num_buffers;
+
+ return 0;
+}
+
+/**
+ * qbman_swp_release_mem_back() - Issue a buffer release command
+ * @s: the software portal object
+ * @d: the release descriptor
+ * @buffers: a pointer pointing to the buffer address to be released
+ * @num_buffers: number of buffers to be released, must be less than 8
+ *
+ * Return 0 for success, -EBUSY if the release command ring is not ready.
+ */
+int qbman_swp_release_mem_back(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers, unsigned int num_buffers)
{
int i;
struct qbman_release_desc *p;
@@ -904,19 +1545,10 @@ int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d,
p->buf[i] = cpu_to_le64(buffers[i]);
p->bpid = d->bpid;

- if ((s->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_5000) {
- /*
- * Set the verb byte, have to substitute in the valid-bit
- * and the number of buffers.
- */
- dma_wmb();
- p->verb = d->verb | RAR_VB(rar) | num_buffers;
- } else {
- p->verb = d->verb | RAR_VB(rar) | num_buffers;
- dma_wmb();
- qbman_write_register(s, QBMAN_CINH_SWP_RCR_AM_RT +
- RAR_IDX(rar) * 4, QMAN_RT_MODE);
- }
+ p->verb = d->verb | RAR_VB(rar) | num_buffers;
+ dma_wmb();
+ qbman_write_register(s, QBMAN_CINH_SWP_RCR_AM_RT +
+ RAR_IDX(rar) * 4, QMAN_RT_MODE);

return 0;
}
diff --git a/drivers/soc/fsl/dpio/qbman-portal.h b/drivers/soc/fsl/dpio/qbman-portal.h
index f3ec5d2..f4b6e47 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;

@@ -67,6 +74,22 @@ enum qbman_pull_type_e {
#define QBMAN_FQ_XOFF 0x4e

/* structure of enqueue descriptor */
+struct qbman_eq_desc_min {
+ u8 verb;
+ u8 dca;
+ __le16 seqnum;
+ __le16 orpid;
+ __le16 reserved1;
+ __le32 tgtid;
+ __le32 tag;
+ __le16 qdbin;
+ u8 qpri;
+ u8 reserved[3];
+ u8 wae;
+ u8 rspid;
+ __le64 rsp_addr;
+};
+
struct qbman_eq_desc {
u8 verb;
u8 dca;
@@ -132,8 +155,48 @@ struct qbman_swp {
u8 dqrr_size;
int reset_bug; /* indicates dqrr reset workaround is needed */
} dqrr;
+
+ struct {
+ u32 pi;
+ u32 pi_vb;
+ u32 pi_ring_size;
+ u32 pi_ci_mask;
+ u32 ci;
+ int available;
+ u32 pend;
+ u32 no_pfdr;
+ } eqcr;
+
+ spinlock_t access_spinlock;
};

+/* Function pointers */
+extern
+int (*qbman_swp_enqueue_ring_mode_ptr)(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd);
+extern
+int (*qbman_swp_enqueue_multiple_ptr)(struct qbman_swp *s,
+ const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd,
+ uint32_t *flags,
+ int num_frames);
+extern
+int (*qbman_swp_enqueue_multiple_desc_ptr)(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames);
+extern
+int (*qbman_swp_pull_ptr)(struct qbman_swp *s, struct qbman_pull_desc *d);
+extern
+const struct dpaa2_dq *(*qbman_swp_dqrr_next_ptr)(struct qbman_swp *s);
+extern
+int (*qbman_swp_release_ptr)(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers,
+ unsigned int num_buffers);
+
+/* Functions */
struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d);
void qbman_swp_finish(struct qbman_swp *p);
u32 qbman_swp_interrupt_read_status(struct qbman_swp *p);
@@ -158,29 +221,25 @@ void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid,
void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
enum qbman_pull_type_e dct);

-int qbman_swp_pull(struct qbman_swp *p, struct qbman_pull_desc *d);
-
-const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s);
void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq);

int qbman_result_has_new_result(struct qbman_swp *p, const struct dpaa2_dq *dq);

void qbman_eq_desc_clear(struct qbman_eq_desc *d);
+void qbman_eq_desc_min_clear(struct qbman_eq_desc_min *d);
void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success);
+void qbman_eq_desc_set_no_orp_min(struct qbman_eq_desc_min *d,
+ int respond_success);
void qbman_eq_desc_set_token(struct qbman_eq_desc *d, u8 token);
void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid);
+void qbman_eq_desc_set_min_fq(struct qbman_eq_desc_min *d, u32 fqid);
void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
u32 qd_bin, u32 qd_prio);

-int qbman_swp_enqueue(struct qbman_swp *p, const struct qbman_eq_desc *d,
- const struct dpaa2_fd *fd);
-
void qbman_release_desc_clear(struct qbman_release_desc *d);
void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid);
void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable);

-int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d,
- const u64 *buffers, unsigned int num_buffers);
int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers,
unsigned int num_buffers);
int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid,
@@ -194,6 +253,61 @@ void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb);
void *qbman_swp_mc_result(struct qbman_swp *p);

/**
+ * qbman_swp_enqueue() - Issue an enqueue command
+ * @s: the software portal used for enqueue
+ * @d: the enqueue descriptor
+ * @fd: the frame descriptor to be enqueued
+ *
+ * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
+ */
+static inline int
+qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd)
+{
+ return qbman_swp_enqueue_ring_mode_ptr(s, d, fd);
+}
+
+/**
+ * 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 QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
+ * @num_frames: number of fd to be enqueued
+ *
+ * Return the number of fd enqueued, or a negative error number.
+ */
+static inline 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)
+{
+ return qbman_swp_enqueue_multiple_ptr(s, d, fd, flags, num_frames);
+}
+
+/**
+ * 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.
+ */
+static inline int
+qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
+ const struct qbman_eq_desc_min *d,
+ const struct dpaa2_fd *fd,
+ int num_frames)
+{
+ return qbman_swp_enqueue_multiple_desc_ptr(s, d, fd, num_frames);
+}
+
+/**
* qbman_result_is_DQ() - check if the dequeue result is a dequeue response
* @dq: the dequeue result to be checked
*
@@ -504,4 +618,49 @@ int qbman_bp_query(struct qbman_swp *s, u16 bpid,

u32 qbman_bp_info_num_free_bufs(struct qbman_bp_query_rslt *a);

+/**
+ * qbman_swp_release() - Issue a buffer release command
+ * @s: the software portal object
+ * @d: the release descriptor
+ * @buffers: a pointer pointing to the buffer address to be released
+ * @num_buffers: number of buffers to be released, must be less than 8
+ *
+ * Return 0 for success, -EBUSY if the release command ring is not ready.
+ */
+static inline int qbman_swp_release(struct qbman_swp *s,
+ const struct qbman_release_desc *d,
+ const u64 *buffers,
+ unsigned int num_buffers)
+{
+ return qbman_swp_release_ptr(s, d, buffers, num_buffers);
+}
+
+/**
+ * qbman_swp_pull() - Issue the pull dequeue command
+ * @s: the software portal object
+ * @d: the software portal descriptor which has been configured with
+ * the set of qbman_pull_desc_set_*() calls
+ *
+ * Return 0 for success, and -EBUSY if the software portal is not ready
+ * to do pull dequeue.
+ */
+static inline int qbman_swp_pull(struct qbman_swp *s,
+ struct qbman_pull_desc *d)
+{
+ return qbman_swp_pull_ptr(s, d);
+}
+
+/**
+ * qbman_swp_dqrr_next() - Get an valid DQRR entry
+ * @s: the software portal object
+ *
+ * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
+ * only once, so repeated calls can return a sequence of DQRR entries, without
+ * requiring they be consumed immediately or in any particular order.
+ */
+static inline const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
+{
+ return qbman_swp_dqrr_next_ptr(s);
+}
+
#endif /* __FSL_QBMAN_PORTAL_H */
--
2.7.4