New upstream version 17.11-rc3

Change-Id: I6a5baa40612fe0c20f30b5fa773a6cbbac63a685
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 0 insertions, 232 deletions

diff --git a/drivers/event/octeontx/ssovf_mbox.c b/drivers/event/octeontx/ssovf_mbox.c
deleted file mode 100644
index 764414b5..00000000
--- a/drivers/event/octeontx/ssovf_mbox.c
+++ /dev/null
@@ -1,232 +0,0 @@
-/*
- *   BSD LICENSE
- *
- *   Copyright (C) Cavium, Inc. 2017.
- *
- *   Redistribution and use in source and binary forms, with or without
- *   modification, are permitted provided that the following conditions
- *   are met:
- *
- *     * Redistributions of source code must retain the above copyright
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright
- *       notice, this list of conditions and the following disclaimer in
- *       the documentation and/or other materials provided with the
- *       distribution.
- *     * Neither the name of Cavium, Inc nor the names of its
- *       contributors may be used to endorse or promote products derived
- *       from this software without specific prior written permission.
- *
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <string.h>
-
-#include <rte_atomic.h>
-#include <rte_common.h>
-#include <rte_cycles.h>
-#include <rte_io.h>
-#include <rte_spinlock.h>
-
-#include "ssovf_evdev.h"
-
-/* Mbox operation timeout in seconds */
-#define MBOX_WAIT_TIME_SEC      3
-#define MAX_RAM_MBOX_LEN	((SSOW_BAR4_LEN >> 1) - 8 /* Mbox header */)
-
-/* Mbox channel state */
-enum {
-	MBOX_CHAN_STATE_REQ = 1,
-	MBOX_CHAN_STATE_RES = 0,
-};
-
-/* Response messages */
-enum {
-	MBOX_RET_SUCCESS,
-	MBOX_RET_INVALID,
-	MBOX_RET_INTERNAL_ERR,
-};
-
-struct mbox {
-	int init_once;
-	uint8_t *ram_mbox_base; /* Base address of mbox message stored in ram */
-	uint8_t *reg; /* Store to this register triggers PF mbox interrupt */
-	uint16_t tag_own; /* Last tag which was written to own channel */
-	rte_spinlock_t lock;
-};
-
-static struct mbox octeontx_mbox;
-
-/*
- * Structure used for mbox synchronization
- * This structure sits at the begin of Mbox RAM and used as main
- * synchronization point for channel communication
- */
-struct mbox_ram_hdr {
-	union {
-		uint64_t u64;
-		struct {
-			uint8_t chan_state : 1;
-			uint8_t coproc : 7;
-			uint8_t msg;
-			uint8_t vfid;
-			uint8_t res_code;
-			uint16_t tag;
-			uint16_t len;
-		};
-	};
-};
-
-static inline void
-mbox_send_request(struct mbox *m, struct octeontx_mbox_hdr *hdr,
-			const void *txmsg, uint16_t txsize)
-{
-	struct mbox_ram_hdr old_hdr;
-	struct mbox_ram_hdr new_hdr = { {0} };
-	uint64_t *ram_mbox_hdr = (uint64_t *)m->ram_mbox_base;
-	uint8_t *ram_mbox_msg = m->ram_mbox_base + sizeof(struct mbox_ram_hdr);
-
-	/*
-	 * Initialize the channel with the tag left by last send.
-	 * On success full mbox send complete, PF increments the tag by one.
-	 * The sender can validate integrity of PF message with this scheme
-	 */
-	old_hdr.u64 = rte_read64(ram_mbox_hdr);
-	m->tag_own = (old_hdr.tag + 2) & (~0x1ul); /* next even number */
-
-	/* Copy msg body */
-	if (txmsg)
-		memcpy(ram_mbox_msg, txmsg, txsize);
-
-	/* Prepare new hdr */
-	new_hdr.chan_state = MBOX_CHAN_STATE_REQ;
-	new_hdr.coproc = hdr->coproc;
-	new_hdr.msg = hdr->msg;
-	new_hdr.vfid = hdr->vfid;
-	new_hdr.tag = m->tag_own;
-	new_hdr.len = txsize;
-
-	/* Write the msg header */
-	rte_write64(new_hdr.u64, ram_mbox_hdr);
-	rte_io_wmb();
-	/* Notify PF about the new msg - write to MBOX reg generates PF IRQ */
-	rte_write64(0, m->reg);
-}
-
-static inline int
-mbox_wait_response(struct mbox *m, struct octeontx_mbox_hdr *hdr,
-			void *rxmsg, uint16_t rxsize)
-{
-	int res = 0, wait;
-	uint16_t len;
-	struct mbox_ram_hdr rx_hdr;
-	uint64_t *ram_mbox_hdr = (uint64_t *)m->ram_mbox_base;
-	uint8_t *ram_mbox_msg = m->ram_mbox_base + sizeof(struct mbox_ram_hdr);
-
-	/* Wait for response */
-	wait = MBOX_WAIT_TIME_SEC * 1000 * 10;
-	while (wait > 0) {
-		rte_delay_us(100);
-		rx_hdr.u64 = rte_read64(ram_mbox_hdr);
-		if (rx_hdr.chan_state == MBOX_CHAN_STATE_RES)
-			break;
-		--wait;
-	}
-
-	hdr->res_code = rx_hdr.res_code;
-	m->tag_own++;
-
-	/* Timeout */
-	if (wait <= 0) {
-		res = -ETIMEDOUT;
-		goto error;
-	}
-
-	/* Tag mismatch */
-	if (m->tag_own != rx_hdr.tag) {
-		res = -EINVAL;
-		goto error;
-	}
-
-	/* PF nacked the msg */
-	if (rx_hdr.res_code != MBOX_RET_SUCCESS) {
-		res = -EBADMSG;
-		goto error;
-	}
-
-	len = RTE_MIN(rx_hdr.len, rxsize);
-	if (rxmsg)
-		memcpy(rxmsg, ram_mbox_msg, len);
-
-	return len;
-
-error:
-	ssovf_log_err("Failed to send mbox(%d/%d) coproc=%d msg=%d ret=(%d,%d)",
-			m->tag_own, rx_hdr.tag, hdr->coproc, hdr->msg, res,
-			hdr->res_code);
-	return res;
-}
-
-static inline int
-mbox_send(struct mbox *m, struct octeontx_mbox_hdr *hdr, const void *txmsg,
-		uint16_t txsize, void *rxmsg, uint16_t rxsize)
-{
-	int res = -EINVAL;
-
-	if (m->init_once == 0 || hdr == NULL ||
-		txsize > MAX_RAM_MBOX_LEN || rxsize > MAX_RAM_MBOX_LEN) {
-		ssovf_log_err("Invalid init_once=%d hdr=%p txsz=%d rxsz=%d",
-				m->init_once, hdr, txsize, rxsize);
-		return res;
-	}
-
-	rte_spinlock_lock(&m->lock);
-
-	mbox_send_request(m, hdr, txmsg, txsize);
-	res = mbox_wait_response(m, hdr, rxmsg, rxsize);
-
-	rte_spinlock_unlock(&m->lock);
-	return res;
-}
-
-static inline int
-mbox_setup(struct mbox *m)
-{
-	if (unlikely(m->init_once == 0)) {
-		rte_spinlock_init(&m->lock);
-		m->ram_mbox_base = octeontx_ssovf_bar(OCTEONTX_SSO_HWS, 0, 4);
-		m->reg = octeontx_ssovf_bar(OCTEONTX_SSO_GROUP, 0, 0);
-		m->reg += SSO_VHGRP_PF_MBOX(1);
-
-		if (m->ram_mbox_base == NULL || m->reg == NULL) {
-			ssovf_log_err("Invalid ram_mbox_base=%p or reg=%p",
-				m->ram_mbox_base, m->reg);
-			return -EINVAL;
-		}
-		m->init_once = 1;
-	}
-	return 0;
-}
-
-int
-octeontx_ssovf_mbox_send(struct octeontx_mbox_hdr *hdr, void *txdata,
-				 uint16_t txlen, void *rxdata, uint16_t rxlen)
-{
-	struct mbox *m = &octeontx_mbox;
-
-	RTE_BUILD_BUG_ON(sizeof(struct mbox_ram_hdr) != 8);
-	if (rte_eal_process_type() != RTE_PROC_PRIMARY || mbox_setup(m))
-		return -EINVAL;
-
-	return mbox_send(m, hdr, txdata, txlen, rxdata, rxlen);
-}