665 lines
18 KiB
C
665 lines
18 KiB
C
/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
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/*
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* Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
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* Copyright 2016-2019 NXP
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*
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*/
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#ifndef __FSL_QBMAN_PORTAL_H
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#define __FSL_QBMAN_PORTAL_H
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#include <soc/fsl/dpaa2-fd.h>
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#define QMAN_REV_4000 0x04000000
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#define QMAN_REV_4100 0x04010000
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#define QMAN_REV_4101 0x04010001
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#define QMAN_REV_5000 0x05000000
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#define QMAN_REV_MASK 0xffff0000
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struct dpaa2_dq;
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struct qbman_swp;
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/* qbman software portal descriptor structure */
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struct qbman_swp_desc {
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void *cena_bar; /* Cache-enabled portal base address */
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void __iomem *cinh_bar; /* Cache-inhibited portal base address */
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u32 qman_version;
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u32 qman_clk;
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u32 qman_256_cycles_per_ns;
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};
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#define QBMAN_SWP_INTERRUPT_EQRI 0x01
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#define QBMAN_SWP_INTERRUPT_EQDI 0x02
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#define QBMAN_SWP_INTERRUPT_DQRI 0x04
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#define QBMAN_SWP_INTERRUPT_RCRI 0x08
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#define QBMAN_SWP_INTERRUPT_RCDI 0x10
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#define QBMAN_SWP_INTERRUPT_VDCI 0x20
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/* the structure for pull dequeue descriptor */
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struct qbman_pull_desc {
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u8 verb;
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u8 numf;
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u8 tok;
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u8 reserved;
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__le32 dq_src;
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__le64 rsp_addr;
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u64 rsp_addr_virt;
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u8 padding[40];
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};
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enum qbman_pull_type_e {
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/* dequeue with priority precedence, respect intra-class scheduling */
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qbman_pull_type_prio = 1,
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/* dequeue with active FQ precedence, respect ICS */
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qbman_pull_type_active,
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/* dequeue with active FQ precedence, no ICS */
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qbman_pull_type_active_noics
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};
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/* Definitions for parsing dequeue entries */
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#define QBMAN_RESULT_MASK 0x7f
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#define QBMAN_RESULT_DQ 0x60
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#define QBMAN_RESULT_FQRN 0x21
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#define QBMAN_RESULT_FQRNI 0x22
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#define QBMAN_RESULT_FQPN 0x24
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#define QBMAN_RESULT_FQDAN 0x25
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#define QBMAN_RESULT_CDAN 0x26
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#define QBMAN_RESULT_CSCN_MEM 0x27
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#define QBMAN_RESULT_CGCU 0x28
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#define QBMAN_RESULT_BPSCN 0x29
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#define QBMAN_RESULT_CSCN_WQ 0x2a
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/* QBMan FQ management command codes */
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#define QBMAN_FQ_SCHEDULE 0x48
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#define QBMAN_FQ_FORCE 0x49
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#define QBMAN_FQ_XON 0x4d
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#define QBMAN_FQ_XOFF 0x4e
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/* structure of enqueue descriptor */
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struct qbman_eq_desc {
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u8 verb;
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u8 dca;
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__le16 seqnum;
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__le16 orpid;
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__le16 reserved1;
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__le32 tgtid;
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__le32 tag;
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__le16 qdbin;
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u8 qpri;
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u8 reserved[3];
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u8 wae;
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u8 rspid;
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__le64 rsp_addr;
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};
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struct qbman_eq_desc_with_fd {
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struct qbman_eq_desc desc;
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u8 fd[32];
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};
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/* buffer release descriptor */
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struct qbman_release_desc {
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u8 verb;
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u8 reserved;
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__le16 bpid;
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__le32 reserved2;
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__le64 buf[7];
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};
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/* Management command result codes */
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#define QBMAN_MC_RSLT_OK 0xf0
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#define CODE_CDAN_WE_EN 0x1
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#define CODE_CDAN_WE_CTX 0x4
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/* portal data structure */
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struct qbman_swp {
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const struct qbman_swp_desc *desc;
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void *addr_cena;
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void __iomem *addr_cinh;
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/* Management commands */
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struct {
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u32 valid_bit; /* 0x00 or 0x80 */
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} mc;
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/* Management response */
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struct {
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u32 valid_bit; /* 0x00 or 0x80 */
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} mr;
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/* Push dequeues */
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u32 sdq;
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/* Volatile dequeues */
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struct {
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atomic_t available; /* indicates if a command can be sent */
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u32 valid_bit; /* 0x00 or 0x80 */
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struct dpaa2_dq *storage; /* NULL if DQRR */
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} vdq;
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/* DQRR */
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struct {
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u32 next_idx;
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u32 valid_bit;
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u8 dqrr_size;
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int reset_bug; /* indicates dqrr reset workaround is needed */
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} dqrr;
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struct {
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u32 pi;
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u32 pi_vb;
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u32 pi_ring_size;
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u32 pi_ci_mask;
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u32 ci;
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int available;
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u32 pend;
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u32 no_pfdr;
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} eqcr;
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spinlock_t access_spinlock;
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/* Interrupt coalescing */
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u32 irq_threshold;
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u32 irq_holdoff;
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int use_adaptive_rx_coalesce;
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};
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/* Function pointers */
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extern
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int (*qbman_swp_enqueue_ptr)(struct qbman_swp *s,
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const struct qbman_eq_desc *d,
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const struct dpaa2_fd *fd);
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extern
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int (*qbman_swp_enqueue_multiple_ptr)(struct qbman_swp *s,
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const struct qbman_eq_desc *d,
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const struct dpaa2_fd *fd,
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uint32_t *flags,
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int num_frames);
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extern
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int (*qbman_swp_enqueue_multiple_desc_ptr)(struct qbman_swp *s,
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const struct qbman_eq_desc *d,
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const struct dpaa2_fd *fd,
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int num_frames);
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extern
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int (*qbman_swp_pull_ptr)(struct qbman_swp *s, struct qbman_pull_desc *d);
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extern
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const struct dpaa2_dq *(*qbman_swp_dqrr_next_ptr)(struct qbman_swp *s);
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extern
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int (*qbman_swp_release_ptr)(struct qbman_swp *s,
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const struct qbman_release_desc *d,
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const u64 *buffers,
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unsigned int num_buffers);
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/* Functions */
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struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d);
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void qbman_swp_finish(struct qbman_swp *p);
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u32 qbman_swp_interrupt_read_status(struct qbman_swp *p);
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void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask);
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u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p);
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void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask);
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int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p);
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void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit);
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void qbman_swp_push_get(struct qbman_swp *p, u8 channel_idx, int *enabled);
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void qbman_swp_push_set(struct qbman_swp *p, u8 channel_idx, int enable);
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void qbman_pull_desc_clear(struct qbman_pull_desc *d);
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void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
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struct dpaa2_dq *storage,
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dma_addr_t storage_phys,
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int stash);
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void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes);
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void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid);
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void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid,
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enum qbman_pull_type_e dct);
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void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
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enum qbman_pull_type_e dct);
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void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq);
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int qbman_result_has_new_result(struct qbman_swp *p, const struct dpaa2_dq *dq);
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void qbman_eq_desc_clear(struct qbman_eq_desc *d);
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void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success);
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void qbman_eq_desc_set_token(struct qbman_eq_desc *d, u8 token);
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void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid);
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void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
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u32 qd_bin, u32 qd_prio);
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void qbman_release_desc_clear(struct qbman_release_desc *d);
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void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid);
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void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable);
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int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers,
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unsigned int num_buffers);
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int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid,
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u8 alt_fq_verb);
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int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid,
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u8 we_mask, u8 cdan_en,
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u64 ctx);
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void *qbman_swp_mc_start(struct qbman_swp *p);
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void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb);
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void *qbman_swp_mc_result(struct qbman_swp *p);
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/**
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* qbman_swp_enqueue() - Issue an enqueue command
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* @s: the software portal used for enqueue
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* @d: the enqueue descriptor
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* @fd: the frame descriptor to be enqueued
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*
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* Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
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*/
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static inline int
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qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
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const struct dpaa2_fd *fd)
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{
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return qbman_swp_enqueue_ptr(s, d, fd);
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}
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/**
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* qbman_swp_enqueue_multiple() - Issue a multi enqueue command
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* using one enqueue descriptor
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* @s: the software portal used for enqueue
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* @d: the enqueue descriptor
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* @fd: table pointer of frame descriptor table to be enqueued
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* @flags: table pointer of QBMAN_ENQUEUE_FLAG_DCA flags, not used if NULL
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* @num_frames: number of fd to be enqueued
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*
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* Return the number of fd enqueued, or a negative error number.
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*/
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static inline int
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qbman_swp_enqueue_multiple(struct qbman_swp *s,
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const struct qbman_eq_desc *d,
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const struct dpaa2_fd *fd,
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uint32_t *flags,
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int num_frames)
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{
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return qbman_swp_enqueue_multiple_ptr(s, d, fd, flags, num_frames);
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}
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/**
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* qbman_swp_enqueue_multiple_desc() - Issue a multi enqueue command
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* using multiple enqueue descriptor
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* @s: the software portal used for enqueue
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* @d: table of minimal enqueue descriptor
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* @fd: table pointer of frame descriptor table to be enqueued
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* @num_frames: number of fd to be enqueued
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*
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* Return the number of fd enqueued, or a negative error number.
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*/
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static inline int
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qbman_swp_enqueue_multiple_desc(struct qbman_swp *s,
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const struct qbman_eq_desc *d,
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const struct dpaa2_fd *fd,
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int num_frames)
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{
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return qbman_swp_enqueue_multiple_desc_ptr(s, d, fd, num_frames);
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}
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/**
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* qbman_result_is_DQ() - check if the dequeue result is a dequeue response
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* @dq: the dequeue result to be checked
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*
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* DQRR entries may contain non-dequeue results, ie. notifications
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*/
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static inline int qbman_result_is_DQ(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_DQ);
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}
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/**
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* qbman_result_is_SCN() - Check the dequeue result is notification or not
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* @dq: the dequeue result to be checked
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*
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*/
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static inline int qbman_result_is_SCN(const struct dpaa2_dq *dq)
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{
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return !qbman_result_is_DQ(dq);
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}
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/* FQ Data Availability */
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static inline int qbman_result_is_FQDAN(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQDAN);
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}
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/* Channel Data Availability */
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static inline int qbman_result_is_CDAN(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CDAN);
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}
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/* Congestion State Change */
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static inline int qbman_result_is_CSCN(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CSCN_WQ);
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}
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/* Buffer Pool State Change */
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static inline int qbman_result_is_BPSCN(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_BPSCN);
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}
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/* Congestion Group Count Update */
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static inline int qbman_result_is_CGCU(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CGCU);
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}
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/* Retirement */
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static inline int qbman_result_is_FQRN(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRN);
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}
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/* Retirement Immediate */
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static inline int qbman_result_is_FQRNI(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRNI);
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}
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/* Park */
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static inline int qbman_result_is_FQPN(const struct dpaa2_dq *dq)
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{
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return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQPN);
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}
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/**
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* qbman_result_SCN_state() - Get the state field in State-change notification
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*/
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static inline u8 qbman_result_SCN_state(const struct dpaa2_dq *scn)
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{
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return scn->scn.state;
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}
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#define SCN_RID_MASK 0x00FFFFFF
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/**
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* qbman_result_SCN_rid() - Get the resource id in State-change notification
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*/
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static inline u32 qbman_result_SCN_rid(const struct dpaa2_dq *scn)
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{
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return le32_to_cpu(scn->scn.rid_tok) & SCN_RID_MASK;
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}
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/**
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* qbman_result_SCN_ctx() - Get the context data in State-change notification
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*/
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static inline u64 qbman_result_SCN_ctx(const struct dpaa2_dq *scn)
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{
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return le64_to_cpu(scn->scn.ctx);
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}
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/**
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* qbman_swp_fq_schedule() - Move the fq to the scheduled state
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* @s: the software portal object
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* @fqid: the index of frame queue to be scheduled
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*
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* There are a couple of different ways that a FQ can end up parked state,
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* This schedules it.
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*
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* Return 0 for success, or negative error code for failure.
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*/
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static inline int qbman_swp_fq_schedule(struct qbman_swp *s, u32 fqid)
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{
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return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_SCHEDULE);
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}
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/**
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* qbman_swp_fq_force() - Force the FQ to fully scheduled state
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* @s: the software portal object
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* @fqid: the index of frame queue to be forced
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*
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* Force eligible will force a tentatively-scheduled FQ to be fully-scheduled
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* and thus be available for selection by any channel-dequeuing behaviour (push
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* or pull). If the FQ is subsequently "dequeued" from the channel and is still
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* empty at the time this happens, the resulting dq_entry will have no FD.
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* (qbman_result_DQ_fd() will return NULL.)
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*
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* Return 0 for success, or negative error code for failure.
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*/
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static inline int qbman_swp_fq_force(struct qbman_swp *s, u32 fqid)
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{
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return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_FORCE);
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}
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/**
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* qbman_swp_fq_xon() - sets FQ flow-control to XON
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* @s: the software portal object
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* @fqid: the index of frame queue
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*
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* This setting doesn't affect enqueues to the FQ, just dequeues.
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*
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* Return 0 for success, or negative error code for failure.
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*/
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static inline int qbman_swp_fq_xon(struct qbman_swp *s, u32 fqid)
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{
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return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XON);
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}
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/**
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* qbman_swp_fq_xoff() - sets FQ flow-control to XOFF
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* @s: the software portal object
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* @fqid: the index of frame queue
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*
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* This setting doesn't affect enqueues to the FQ, just dequeues.
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* XOFF FQs will remain in the tenatively-scheduled state, even when
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* non-empty, meaning they won't be selected for scheduled dequeuing.
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* If a FQ is changed to XOFF after it had already become truly-scheduled
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* to a channel, and a pull dequeue of that channel occurs that selects
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* that FQ for dequeuing, then the resulting dq_entry will have no FD.
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* (qbman_result_DQ_fd() will return NULL.)
|
|
*
|
|
* Return 0 for success, or negative error code for failure.
|
|
*/
|
|
static inline int qbman_swp_fq_xoff(struct qbman_swp *s, u32 fqid)
|
|
{
|
|
return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XOFF);
|
|
}
|
|
|
|
/* If the user has been allocated a channel object that is going to generate
|
|
* CDANs to another channel, then the qbman_swp_CDAN* functions will be
|
|
* necessary.
|
|
*
|
|
* CDAN-enabled channels only generate a single CDAN notification, after which
|
|
* they need to be reenabled before they'll generate another. The idea is
|
|
* that pull dequeuing will occur in reaction to the CDAN, followed by a
|
|
* reenable step. Each function generates a distinct command to hardware, so a
|
|
* combination function is provided if the user wishes to modify the "context"
|
|
* (which shows up in each CDAN message) each time they reenable, as a single
|
|
* command to hardware.
|
|
*/
|
|
|
|
/**
|
|
* qbman_swp_CDAN_set_context() - Set CDAN context
|
|
* @s: the software portal object
|
|
* @channelid: the channel index
|
|
* @ctx: the context to be set in CDAN
|
|
*
|
|
* Return 0 for success, or negative error code for failure.
|
|
*/
|
|
static inline int qbman_swp_CDAN_set_context(struct qbman_swp *s, u16 channelid,
|
|
u64 ctx)
|
|
{
|
|
return qbman_swp_CDAN_set(s, channelid,
|
|
CODE_CDAN_WE_CTX,
|
|
0, ctx);
|
|
}
|
|
|
|
/**
|
|
* qbman_swp_CDAN_enable() - Enable CDAN for the channel
|
|
* @s: the software portal object
|
|
* @channelid: the index of the channel to generate CDAN
|
|
*
|
|
* Return 0 for success, or negative error code for failure.
|
|
*/
|
|
static inline int qbman_swp_CDAN_enable(struct qbman_swp *s, u16 channelid)
|
|
{
|
|
return qbman_swp_CDAN_set(s, channelid,
|
|
CODE_CDAN_WE_EN,
|
|
1, 0);
|
|
}
|
|
|
|
/**
|
|
* qbman_swp_CDAN_disable() - disable CDAN for the channel
|
|
* @s: the software portal object
|
|
* @channelid: the index of the channel to generate CDAN
|
|
*
|
|
* Return 0 for success, or negative error code for failure.
|
|
*/
|
|
static inline int qbman_swp_CDAN_disable(struct qbman_swp *s, u16 channelid)
|
|
{
|
|
return qbman_swp_CDAN_set(s, channelid,
|
|
CODE_CDAN_WE_EN,
|
|
0, 0);
|
|
}
|
|
|
|
/**
|
|
* qbman_swp_CDAN_set_context_enable() - Set CDAN contest and enable CDAN
|
|
* @s: the software portal object
|
|
* @channelid: the index of the channel to generate CDAN
|
|
* @ctx:i the context set in CDAN
|
|
*
|
|
* Return 0 for success, or negative error code for failure.
|
|
*/
|
|
static inline int qbman_swp_CDAN_set_context_enable(struct qbman_swp *s,
|
|
u16 channelid,
|
|
u64 ctx)
|
|
{
|
|
return qbman_swp_CDAN_set(s, channelid,
|
|
CODE_CDAN_WE_EN | CODE_CDAN_WE_CTX,
|
|
1, ctx);
|
|
}
|
|
|
|
/* Wraps up submit + poll-for-result */
|
|
static inline void *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd,
|
|
u8 cmd_verb)
|
|
{
|
|
int loopvar = 2000;
|
|
|
|
qbman_swp_mc_submit(swp, cmd, cmd_verb);
|
|
|
|
do {
|
|
cmd = qbman_swp_mc_result(swp);
|
|
} while (!cmd && loopvar--);
|
|
|
|
WARN_ON(!loopvar);
|
|
|
|
return cmd;
|
|
}
|
|
|
|
/* Query APIs */
|
|
struct qbman_fq_query_np_rslt {
|
|
u8 verb;
|
|
u8 rslt;
|
|
u8 st1;
|
|
u8 st2;
|
|
u8 reserved[2];
|
|
__le16 od1_sfdr;
|
|
__le16 od2_sfdr;
|
|
__le16 od3_sfdr;
|
|
__le16 ra1_sfdr;
|
|
__le16 ra2_sfdr;
|
|
__le32 pfdr_hptr;
|
|
__le32 pfdr_tptr;
|
|
__le32 frm_cnt;
|
|
__le32 byte_cnt;
|
|
__le16 ics_surp;
|
|
u8 is;
|
|
u8 reserved2[29];
|
|
};
|
|
|
|
int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
|
|
struct qbman_fq_query_np_rslt *r);
|
|
u32 qbman_fq_state_frame_count(const struct qbman_fq_query_np_rslt *r);
|
|
u32 qbman_fq_state_byte_count(const struct qbman_fq_query_np_rslt *r);
|
|
|
|
struct qbman_bp_query_rslt {
|
|
u8 verb;
|
|
u8 rslt;
|
|
u8 reserved[4];
|
|
u8 bdi;
|
|
u8 state;
|
|
__le32 fill;
|
|
__le32 hdotr;
|
|
__le16 swdet;
|
|
__le16 swdxt;
|
|
__le16 hwdet;
|
|
__le16 hwdxt;
|
|
__le16 swset;
|
|
__le16 swsxt;
|
|
__le16 vbpid;
|
|
__le16 icid;
|
|
__le64 bpscn_addr;
|
|
__le64 bpscn_ctx;
|
|
__le16 hw_targ;
|
|
u8 dbe;
|
|
u8 reserved2;
|
|
u8 sdcnt;
|
|
u8 hdcnt;
|
|
u8 sscnt;
|
|
u8 reserved3[9];
|
|
};
|
|
|
|
int qbman_bp_query(struct qbman_swp *s, u16 bpid,
|
|
struct qbman_bp_query_rslt *r);
|
|
|
|
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);
|
|
}
|
|
|
|
int qbman_swp_set_irq_coalescing(struct qbman_swp *p, u32 irq_threshold,
|
|
u32 irq_holdoff);
|
|
|
|
void qbman_swp_get_irq_coalescing(struct qbman_swp *p, u32 *irq_threshold,
|
|
u32 *irq_holdoff);
|
|
|
|
#endif /* __FSL_QBMAN_PORTAL_H */
|