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https://github.com/AsahiLinux/u-boot
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214 lines
7.3 KiB
C
214 lines
7.3 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2018-2022 Marvell International Ltd.
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*
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* Backward compatibility for packet transmission using legacy PKO command.
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*/
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#ifndef __CVMX_PKO_H__
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#define __CVMX_PKO_H__
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extern cvmx_pko_return_value_t
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cvmx_pko3_legacy_xmit(unsigned int dq, cvmx_pko_command_word0_t pko_command,
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cvmx_buf_ptr_t packet, uint64_t addr, bool tag_sw);
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/**
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* Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly
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* once before this, and the same parameters must be passed to both
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* cvmx_pko_send_packet_prepare() and cvmx_pko_send_packet_finish().
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*
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* WARNING: This function may have to look up the proper PKO port in
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* the IPD port to PKO port map, and is thus slower than calling
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* cvmx_pko_send_packet_finish_pkoid() directly if the PKO port
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* identifier is known.
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*
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* @param ipd_port The IPD port corresponding the to pko port the packet is for
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* @param queue Queue to use
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* @param pko_command
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* PKO HW command word
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* @param packet to send
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* @param use_locking
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* CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG,
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* or CVMX_PKO_LOCK_CMD_QUEUE
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*
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* @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
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*/
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static inline cvmx_pko_return_value_t
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cvmx_pko_send_packet_finish(u64 ipd_port, uint64_t queue,
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cvmx_pko_command_word0_t pko_command,
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cvmx_buf_ptr_t packet, cvmx_pko_lock_t use_locking)
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{
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cvmx_cmd_queue_result_t result;
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if (octeon_has_feature(OCTEON_FEATURE_CN78XX_WQE)) {
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return cvmx_pko3_legacy_xmit(queue, pko_command, packet, 0,
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use_locking ==
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CVMX_PKO_LOCK_ATOMIC_TAG);
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}
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if (use_locking == CVMX_PKO_LOCK_ATOMIC_TAG)
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cvmx_pow_tag_sw_wait();
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result = cvmx_cmd_queue_write2(CVMX_CMD_QUEUE_PKO(queue),
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(use_locking == CVMX_PKO_LOCK_CMD_QUEUE),
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pko_command.u64, packet.u64);
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if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS)) {
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cvmx_pko_doorbell(ipd_port, queue, 2);
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return CVMX_PKO_SUCCESS;
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} else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) ||
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(result == CVMX_CMD_QUEUE_FULL)) {
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return CVMX_PKO_NO_MEMORY;
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} else {
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return CVMX_PKO_INVALID_QUEUE;
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}
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}
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/**
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* Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly
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* once before this, and the same parameters must be passed to both
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* cvmx_pko_send_packet_prepare() and cvmx_pko_send_packet_finish().
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*
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* WARNING: This function may have to look up the proper PKO port in
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* the IPD port to PKO port map, and is thus slower than calling
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* cvmx_pko_send_packet_finish3_pkoid() directly if the PKO port
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* identifier is known.
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*
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* @param ipd_port The IPD port corresponding the to pko port the packet is for
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* @param queue Queue to use
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* @param pko_command
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* PKO HW command word
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* @param packet to send
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* @param addr Physical address of a work queue entry or physical address to zero
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* on complete.
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* @param use_locking
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* CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG,
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* or CVMX_PKO_LOCK_CMD_QUEUE
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*
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* @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
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*/
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static inline cvmx_pko_return_value_t
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cvmx_pko_send_packet_finish3(u64 ipd_port, uint64_t queue,
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cvmx_pko_command_word0_t pko_command,
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cvmx_buf_ptr_t packet, uint64_t addr,
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cvmx_pko_lock_t use_locking)
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{
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cvmx_cmd_queue_result_t result;
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if (octeon_has_feature(OCTEON_FEATURE_CN78XX_WQE)) {
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return cvmx_pko3_legacy_xmit(queue, pko_command, packet, addr,
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use_locking ==
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CVMX_PKO_LOCK_ATOMIC_TAG);
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}
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if (use_locking == CVMX_PKO_LOCK_ATOMIC_TAG)
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cvmx_pow_tag_sw_wait();
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result = cvmx_cmd_queue_write3(CVMX_CMD_QUEUE_PKO(queue),
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(use_locking == CVMX_PKO_LOCK_CMD_QUEUE),
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pko_command.u64, packet.u64, addr);
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if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS)) {
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cvmx_pko_doorbell(ipd_port, queue, 3);
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return CVMX_PKO_SUCCESS;
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} else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) ||
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(result == CVMX_CMD_QUEUE_FULL)) {
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return CVMX_PKO_NO_MEMORY;
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} else {
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return CVMX_PKO_INVALID_QUEUE;
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}
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}
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/**
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* Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly
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* once before this, and the same parameters must be passed to both
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* cvmx_pko_send_packet_prepare() and cvmx_pko_send_packet_finish_pkoid().
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*
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* @param pko_port Port to send it on
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* @param queue Queue to use
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* @param pko_command
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* PKO HW command word
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* @param packet to send
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* @param use_locking
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* CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG,
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* or CVMX_PKO_LOCK_CMD_QUEUE
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*
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* @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
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*/
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static inline cvmx_pko_return_value_t
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cvmx_pko_send_packet_finish_pkoid(int pko_port, uint64_t queue,
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cvmx_pko_command_word0_t pko_command,
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cvmx_buf_ptr_t packet, cvmx_pko_lock_t use_locking)
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{
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cvmx_cmd_queue_result_t result;
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if (octeon_has_feature(OCTEON_FEATURE_CN78XX_WQE)) {
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return cvmx_pko3_legacy_xmit(queue, pko_command, packet, 0,
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use_locking ==
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CVMX_PKO_LOCK_ATOMIC_TAG);
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}
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if (use_locking == CVMX_PKO_LOCK_ATOMIC_TAG)
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cvmx_pow_tag_sw_wait();
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result = cvmx_cmd_queue_write2(CVMX_CMD_QUEUE_PKO(queue),
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(use_locking == CVMX_PKO_LOCK_CMD_QUEUE),
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pko_command.u64, packet.u64);
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if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS)) {
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cvmx_pko_doorbell_pkoid(pko_port, queue, 2);
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return CVMX_PKO_SUCCESS;
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} else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) ||
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(result == CVMX_CMD_QUEUE_FULL)) {
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return CVMX_PKO_NO_MEMORY;
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} else {
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return CVMX_PKO_INVALID_QUEUE;
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}
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}
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/**
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* Complete packet output. cvmx_pko_send_packet_prepare() must be called exactly
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* once before this, and the same parameters must be passed to both
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* cvmx_pko_send_packet_prepare() and cvmx_pko_send_packet_finish_pkoid().
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*
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* @param pko_port The PKO port the packet is for
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* @param queue Queue to use
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* @param pko_command
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* PKO HW command word
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* @param packet to send
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* @param addr Plysical address of a work queue entry or physical address to zero
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* on complete.
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* @param use_locking
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* CVMX_PKO_LOCK_NONE, CVMX_PKO_LOCK_ATOMIC_TAG,
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* or CVMX_PKO_LOCK_CMD_QUEUE
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*
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* @return returns CVMX_PKO_SUCCESS on success, or error code on failure of output
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*/
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static inline cvmx_pko_return_value_t
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cvmx_pko_send_packet_finish3_pkoid(u64 pko_port, uint64_t queue,
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cvmx_pko_command_word0_t pko_command,
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cvmx_buf_ptr_t packet, uint64_t addr,
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cvmx_pko_lock_t use_locking)
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{
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cvmx_cmd_queue_result_t result;
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if (octeon_has_feature(OCTEON_FEATURE_CN78XX_WQE)) {
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return cvmx_pko3_legacy_xmit(queue, pko_command, packet, addr,
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use_locking ==
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CVMX_PKO_LOCK_ATOMIC_TAG);
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}
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if (use_locking == CVMX_PKO_LOCK_ATOMIC_TAG)
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cvmx_pow_tag_sw_wait();
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result = cvmx_cmd_queue_write3(CVMX_CMD_QUEUE_PKO(queue),
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(use_locking == CVMX_PKO_LOCK_CMD_QUEUE),
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pko_command.u64, packet.u64, addr);
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if (cvmx_likely(result == CVMX_CMD_QUEUE_SUCCESS)) {
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cvmx_pko_doorbell_pkoid(pko_port, queue, 3);
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return CVMX_PKO_SUCCESS;
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} else if ((result == CVMX_CMD_QUEUE_NO_MEMORY) ||
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(result == CVMX_CMD_QUEUE_FULL)) {
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return CVMX_PKO_NO_MEMORY;
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} else {
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return CVMX_PKO_INVALID_QUEUE;
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}
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}
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#endif /* __CVMX_PKO_H__ */
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