u-boot/arch/mips/mach-octeon/include/mach/cvmx-pko.h

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