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      1 /*	$NetBSD: qat_c2xxx.c,v 1.2 2022/05/24 08:35:47 knakahara Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2019 Internet Initiative Japan, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 /*
     30  *   Copyright(c) 2007-2013 Intel Corporation. All rights reserved.
     31  *
     32  *   Redistribution and use in source and binary forms, with or without
     33  *   modification, are permitted provided that the following conditions
     34  *   are met:
     35  *
     36  *     * Redistributions of source code must retain the above copyright
     37  *       notice, this list of conditions and the following disclaimer.
     38  *     * Redistributions in binary form must reproduce the above copyright
     39  *       notice, this list of conditions and the following disclaimer in
     40  *       the documentation and/or other materials provided with the
     41  *       distribution.
     42  *     * Neither the name of Intel Corporation nor the names of its
     43  *       contributors may be used to endorse or promote products derived
     44  *       from this software without specific prior written permission.
     45  *
     46  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     47  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     48  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     49  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     50  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     51  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     52  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     53  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     54  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     55  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     56  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     57  */
     58 
     59 #include <sys/cdefs.h>
     60 __KERNEL_RCSID(0, "$NetBSD: qat_c2xxx.c,v 1.2 2022/05/24 08:35:47 knakahara Exp $");
     61 
     62 #include <sys/param.h>
     63 #include <sys/systm.h>
     64 
     65 #include <dev/pci/pcireg.h>
     66 #include <dev/pci/pcivar.h>
     67 
     68 #include "qatreg.h"
     69 #include "qat_hw15reg.h"
     70 #include "qat_c2xxxreg.h"
     71 #include "qatvar.h"
     72 #include "qat_hw15var.h"
     73 
     74 static uint32_t
     75 qat_c2xxx_get_accel_mask(struct qat_softc *sc)
     76 {
     77 	pcireg_t fusectl;
     78 
     79 	fusectl = pci_conf_read(sc->sc_pc, sc->sc_pcitag, FUSECTL_REG);
     80 
     81 	return ((~fusectl) & ACCEL_MASK_C2XXX);
     82 }
     83 
     84 static uint32_t
     85 qat_c2xxx_get_ae_mask(struct qat_softc *sc)
     86 {
     87 	pcireg_t fusectl;
     88 
     89 	fusectl = pci_conf_read(sc->sc_pc, sc->sc_pcitag, FUSECTL_REG);
     90 	if (fusectl & (
     91 	    FUSECTL_C2XXX_PKE_DISABLE |
     92 	    FUSECTL_C2XXX_ATH_DISABLE |
     93 	    FUSECTL_C2XXX_CPH_DISABLE)) {
     94 		return 0;
     95 	} else {
     96 		return ((~fusectl) & AE_MASK_C2XXX);
     97 	}
     98 }
     99 
    100 static enum qat_sku
    101 qat_c2xxx_get_sku(struct qat_softc *sc)
    102 {
    103 	pcireg_t fusectl;
    104 
    105 	fusectl = pci_conf_read(sc->sc_pc, sc->sc_pcitag, FUSECTL_REG);
    106 
    107 	switch (sc->sc_ae_num) {
    108 	case 1:
    109 		if (fusectl & FUSECTL_C2XXX_LOW_SKU)
    110 			return QAT_SKU_3;
    111 		else if (fusectl & FUSECTL_C2XXX_MID_SKU)
    112 			return QAT_SKU_2;
    113 		break;
    114 	case MAX_AE_C2XXX:
    115 		return QAT_SKU_1;
    116 	}
    117 
    118 	return QAT_SKU_UNKNOWN;
    119 }
    120 
    121 static uint32_t
    122 qat_c2xxx_get_accel_cap(struct qat_softc *sc)
    123 {
    124 	return QAT_ACCEL_CAP_CRYPTO_SYMMETRIC |
    125 	    QAT_ACCEL_CAP_CRYPTO_ASYMMETRIC |
    126 	    QAT_ACCEL_CAP_CIPHER |
    127 	    QAT_ACCEL_CAP_AUTHENTICATION;
    128 }
    129 
    130 static const char *
    131 qat_c2xxx_get_fw_uof_name(struct qat_softc *sc)
    132 {
    133 	if (sc->sc_rev < QAT_REVID_C2XXX_B0)
    134 		return AE_FW_UOF_NAME_C2XXX_A0;
    135 
    136 	/* QAT_REVID_C2XXX_B0 and QAT_REVID_C2XXX_C0 */
    137 	return AE_FW_UOF_NAME_C2XXX_B0;
    138 }
    139 
    140 static void
    141 qat_c2xxx_enable_intr(struct qat_softc *sc)
    142 {
    143 
    144 	qat_misc_write_4(sc, EP_SMIA_C2XXX, EP_SMIA_MASK_C2XXX);
    145 }
    146 
    147 static void
    148 qat_c2xxx_init_etr_intr(struct qat_softc *sc, int bank)
    149 {
    150 	/*
    151 	 * For now, all rings within the bank are setup such that the generation
    152 	 * of flag interrupts will be triggered when ring leaves the empty
    153 	 * state. Note that in order for the ring interrupt to generate an IRQ
    154 	 * the interrupt must also be enabled for the ring.
    155 	 */
    156 	qat_etr_bank_write_4(sc, bank, ETR_INT_SRCSEL,
    157 	    ETR_INT_SRCSEL_MASK_0_C2XXX);
    158 	qat_etr_bank_write_4(sc, bank, ETR_INT_SRCSEL_2,
    159 	    ETR_INT_SRCSEL_MASK_X_C2XXX);
    160 }
    161 
    162 const struct qat_hw qat_hw_c2xxx = {
    163 	.qhw_sram_bar_id = BAR_SRAM_ID_C2XXX,
    164 	.qhw_misc_bar_id = BAR_PMISC_ID_C2XXX,
    165 	.qhw_etr_bar_id = BAR_ETR_ID_C2XXX,
    166 	.qhw_cap_global_offset = CAP_GLOBAL_OFFSET_C2XXX,
    167 	.qhw_ae_offset = AE_OFFSET_C2XXX,
    168 	.qhw_ae_local_offset = AE_LOCAL_OFFSET_C2XXX,
    169 	.qhw_etr_bundle_size = ETR_BUNDLE_SIZE_C2XXX,
    170 	.qhw_num_banks = ETR_MAX_BANKS_C2XXX,
    171 	.qhw_num_ap_banks = ETR_MAX_AP_BANKS_C2XXX,
    172 	.qhw_num_rings_per_bank = ETR_MAX_RINGS_PER_BANK,
    173 	.qhw_num_accel = MAX_ACCEL_C2XXX,
    174 #if 0
    175 	.qhw_num_engines = MAX_AE_C2XXX,
    176 #else
    177 	/*
    178 	 * Workaround:
    179 	 * C2xxx qat has two engines, however it doesn't have arbiter which
    180 	 * C3xxx qat has.  So, we don't use secondary engine for C2xxx qat.
    181 	 */
    182 	.qhw_num_engines = 1,
    183 #endif
    184 	.qhw_tx_rx_gap = ETR_TX_RX_GAP_C2XXX,
    185 	.qhw_tx_rings_mask = ETR_TX_RINGS_MASK_C2XXX,
    186 	.qhw_msix_ae_vec_gap = MSIX_AE_VEC_GAP_C2XXX,
    187 	.qhw_fw_auth = false,
    188 	.qhw_fw_req_size = FW_REQ_DEFAULT_SZ_HW15,
    189 	.qhw_fw_resp_size = FW_REQ_DEFAULT_SZ_HW15,
    190 	.qhw_ring_asym_tx = 2,
    191 	.qhw_ring_asym_rx = 3,
    192 	.qhw_ring_sym_tx = 4,
    193 	.qhw_ring_sym_rx = 5,
    194 	.qhw_mof_fwname = AE_FW_MOF_NAME_C2XXX,
    195 	.qhw_mmp_fwname = AE_FW_MMP_NAME_C2XXX,
    196 	.qhw_prod_type = AE_FW_PROD_TYPE_C2XXX,
    197 	.qhw_get_accel_mask = qat_c2xxx_get_accel_mask,
    198 	.qhw_get_ae_mask = qat_c2xxx_get_ae_mask,
    199 	.qhw_get_sku = qat_c2xxx_get_sku,
    200 	.qhw_get_accel_cap = qat_c2xxx_get_accel_cap,
    201 	.qhw_get_fw_uof_name = qat_c2xxx_get_fw_uof_name,
    202 	.qhw_enable_intr = qat_c2xxx_enable_intr,
    203 	.qhw_init_etr_intr = qat_c2xxx_init_etr_intr,
    204 	.qhw_init_admin_comms = qat_adm_ring_init,
    205 	.qhw_send_admin_init = qat_adm_ring_send_init,
    206 	.qhw_crypto_setup_desc = qat_hw15_crypto_setup_desc,
    207 	.qhw_crypto_setup_req_params = qat_hw15_crypto_setup_req_params,
    208 	.qhw_crypto_opaque_offset =
    209 	    offsetof(struct fw_la_resp, comn_resp.opaque_data),
    210 };
    211