cxgbe/common/common.c

56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/*
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * This file and its contents are supplied under the terms of the
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Common Development and Distribution License ("CDDL"), version 1.0.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * You may only use this file in accordance with the terms of version
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * 1.0 of the CDDL.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * A full copy of the text of the CDDL should have accompanied this
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * source. A copy of the CDDL is also available via the Internet at
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * http://www.illumos.org/license/CDDL.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana/*
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * This file is part of the Chelsio T4 Ethernet driver.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * Copyright (C) 2005-2013 Chelsio Communications.  All rights reserved.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana *
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * This program is distributed in the hope that it will be useful, but WITHOUT
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * FITNESS FOR A PARTICULAR PURPOSE.  See the LICENSE file included in this
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana * release for licensing terms and conditions.
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#include "common.h"
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaint
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanais_offload(const struct adapter *adap)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return (adap->params.offload);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaunsigned int
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanacore_ticks_per_usec(const struct adapter *adap)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return (adap->params.vpd.cclk / 1000);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaint
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanat4_wr_mbox(struct adapter *adap, int mbox, const void *cmd, int size, void *rpl)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return (t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, true));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaunsigned int
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaus_to_core_ticks(const struct adapter *adap, unsigned int us)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return ((us * adap->params.vpd.cclk) / 1000);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaunsigned int
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanacore_ticks_to_us(const struct adapter *adapter, unsigned int ticks)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    /* add Core Clock / 2 to round ticks to nearest uS */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return ((ticks * 1000 + adapter->params.vpd.cclk/2) /
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana        adapter->params.vpd.cclk);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaunsigned int
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanadack_ticks_to_usec(const struct adapter *adap, unsigned int ticks)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return ((ticks << adap->params.tp.dack_re) / core_ticks_per_usec(adap));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaint
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanais_bypass(const adapter_t *adap)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return (adap->params.bypass);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaint
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanais_bypass_device(int device)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    /* TODO - this should be set based upon device capabilities */
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    switch (device) {
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#ifdef CONFIG_CHELSIO_BYPASS
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    case 0x440b:
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    case 0x440c:
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana        return (1);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana#endif
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    default:
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana        return (0);
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    }
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaint
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanat4_wait_op_done(struct adapter *adapter, int reg, u32 mask, int polarity,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    int attempts, int delay)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return (t4_wait_op_done_val(adapter, reg, mask, polarity, attempts,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana        delay, NULL));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanaint
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushanat4_wr_mbox_ns(struct adapter *adap, int mbox, const void *cmd, int size,
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    void *rpl)
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana{
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana    return (t4_wr_mbox_meat(adap, mbox, cmd, size, rpl, false));
56b2bdd1f04d465cfe4a95b88ae5cba5884154e4Gireesh Nagabhushana}