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      1 /*	$NetBSD: qat_c62x.c,v 1.1 2019/11/20 09:37:46 hikaru 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) 2014 Intel Corporation.
     31  *   Redistribution and use in source and binary forms, with or without
     32  *   modification, are permitted provided that the following conditions
     33  *   are met:
     34  *
     35  *     * Redistributions of source code must retain the above copyright
     36  *       notice, this list of conditions and the following disclaimer.
     37  *     * Redistributions in binary form must reproduce the above copyright
     38  *       notice, this list of conditions and the following disclaimer in
     39  *       the documentation and/or other materials provided with the
     40  *       distribution.
     41  *     * Neither the name of Intel Corporation nor the names of its
     42  *       contributors may be used to endorse or promote products derived
     43  *       from this software without specific prior written permission.
     44  *
     45  *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     46  *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     47  *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     48  *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     49  *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     50  *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     51  *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     52  *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     53  *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     54  *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     55  *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     56  */
     57 
     58 #include <sys/cdefs.h>
     59 __KERNEL_RCSID(0, "$NetBSD: qat_c62x.c,v 1.1 2019/11/20 09:37:46 hikaru Exp $");
     60 
     61 #include <sys/param.h>
     62 #include <sys/systm.h>
     63 
     64 #include <dev/pci/pcireg.h>
     65 #include <dev/pci/pcivar.h>
     66 
     67 #include "qatreg.h"
     68 #include "qat_hw17reg.h"
     69 #include "qat_c62xreg.h"
     70 #include "qatvar.h"
     71 #include "qat_hw17var.h"
     72 
     73 static uint32_t
     74 qat_c62x_get_accel_mask(struct qat_softc *sc)
     75 {
     76 	pcireg_t fusectl, strap;
     77 
     78 	fusectl = pci_conf_read(sc->sc_pc, sc->sc_pcitag, FUSECTL_REG);
     79 	strap = pci_conf_read(sc->sc_pc, sc->sc_pcitag, SOFTSTRAP_REG_C62X);
     80 
     81 	return (((~(fusectl | strap)) >> ACCEL_REG_OFFSET_C62X) &
     82 	    ACCEL_MASK_C62X);
     83 }
     84 
     85 static uint32_t
     86 qat_c62x_get_ae_mask(struct qat_softc *sc)
     87 {
     88 	pcireg_t fusectl, me_strap, me_disable, ssms_disabled;
     89 
     90 	fusectl = pci_conf_read(sc->sc_pc, sc->sc_pcitag, FUSECTL_REG);
     91 	me_strap = pci_conf_read(sc->sc_pc, sc->sc_pcitag, SOFTSTRAP_REG_C62X);
     92 
     93 	/* If SSMs are disabled, then disable the corresponding MEs */
     94 	ssms_disabled = (~qat_c62x_get_accel_mask(sc)) & ACCEL_MASK_C62X;
     95 	me_disable = 0x3;
     96 	while (ssms_disabled) {
     97 		if (ssms_disabled & 1)
     98 			me_strap |= me_disable;
     99 		ssms_disabled >>= 1;
    100 		me_disable <<= 2;
    101 	}
    102 
    103 	return (~(fusectl | me_strap)) & AE_MASK_C62X;
    104 }
    105 
    106 static enum qat_sku
    107 qat_c62x_get_sku(struct qat_softc *sc)
    108 {
    109 	switch (sc->sc_ae_num) {
    110 	case 8:
    111 		return QAT_SKU_2;
    112 	case MAX_AE_C62X:
    113 		return QAT_SKU_4;
    114 	}
    115 
    116 	return QAT_SKU_UNKNOWN;
    117 }
    118 
    119 static uint32_t
    120 qat_c62x_get_accel_cap(struct qat_softc *sc)
    121 {
    122 	uint32_t cap;
    123 	pcireg_t legfuse, strap;
    124 
    125 	legfuse = pci_conf_read(sc->sc_pc, sc->sc_pcitag, LEGFUSE_REG);
    126 	strap = pci_conf_read(sc->sc_pc, sc->sc_pcitag, SOFTSTRAP_REG_C62X);
    127 
    128 	cap = QAT_ACCEL_CAP_CRYPTO_SYMMETRIC +
    129 		QAT_ACCEL_CAP_CRYPTO_ASYMMETRIC +
    130 		QAT_ACCEL_CAP_CIPHER +
    131 		QAT_ACCEL_CAP_AUTHENTICATION +
    132 		QAT_ACCEL_CAP_COMPRESSION +
    133 		QAT_ACCEL_CAP_ZUC +
    134 		QAT_ACCEL_CAP_SHA3;
    135 
    136 	if (legfuse & LEGFUSE_ACCEL_MASK_CIPHER_SLICE) {
    137 		cap &= ~QAT_ACCEL_CAP_CRYPTO_SYMMETRIC;
    138 		cap &= ~QAT_ACCEL_CAP_CIPHER;
    139 	}
    140 	if (legfuse & LEGFUSE_ACCEL_MASK_AUTH_SLICE)
    141 		cap &= ~QAT_ACCEL_CAP_AUTHENTICATION;
    142 	if (legfuse & LEGFUSE_ACCEL_MASK_PKE_SLICE)
    143 		cap &= ~QAT_ACCEL_CAP_CRYPTO_ASYMMETRIC;
    144 	if (legfuse & LEGFUSE_ACCEL_MASK_COMPRESS_SLICE)
    145 		cap &= ~QAT_ACCEL_CAP_COMPRESSION;
    146 	if (legfuse & LEGFUSE_ACCEL_MASK_EIA3_SLICE)
    147 		cap &= ~QAT_ACCEL_CAP_ZUC;
    148 
    149 	if ((strap | legfuse) & SOFTSTRAP_SS_POWERGATE_PKE_C62X)
    150 		cap &= ~QAT_ACCEL_CAP_CRYPTO_ASYMMETRIC;
    151 	if ((strap | legfuse) & SOFTSTRAP_SS_POWERGATE_CY_C62X)
    152 		cap &= ~QAT_ACCEL_CAP_COMPRESSION;
    153 
    154 	return cap;
    155 }
    156 
    157 static const char *
    158 qat_c62x_get_fw_uof_name(struct qat_softc *sc)
    159 {
    160 
    161 	return AE_FW_UOF_NAME_C62X;
    162 }
    163 
    164 static void
    165 qat_c62x_enable_intr(struct qat_softc *sc)
    166 {
    167 
    168 	/* Enable bundle and misc interrupts */
    169 	qat_misc_write_4(sc, SMIAPF0_C62X, SMIA0_MASK_C62X);
    170 	qat_misc_write_4(sc, SMIAPF1_C62X, SMIA1_MASK_C62X);
    171 }
    172 
    173 /* Worker thread to service arbiter mappings */
    174 static uint32_t thrd_to_arb_map[] = {
    175 	0x12222AAA, 0x11222AAA, 0x12222AAA, 0x11222AAA, 0x12222AAA,
    176 	0x11222AAA, 0x12222AAA, 0x11222AAA, 0x12222AAA, 0x11222AAA
    177 };
    178 
    179 static void
    180 qat_c62x_get_arb_mapping(struct qat_softc *sc, const uint32_t **arb_map_config)
    181 {
    182 	int i;
    183 
    184 	for (i = 1; i < MAX_AE_C62X; i++) {
    185 		if ((~sc->sc_ae_mask) & (1 << i))
    186 			thrd_to_arb_map[i] = 0;
    187 	}
    188 	*arb_map_config = thrd_to_arb_map;
    189 }
    190 
    191 static void
    192 qat_c62x_enable_error_interrupts(struct qat_softc *sc)
    193 {
    194 	qat_misc_write_4(sc, ERRMSK0, ERRMSK0_CERR_C62X); /* ME0-ME3 */
    195 	qat_misc_write_4(sc, ERRMSK1, ERRMSK1_CERR_C62X); /* ME4-ME7 */
    196 	qat_misc_write_4(sc, ERRMSK4, ERRMSK4_CERR_C62X); /* ME8-ME9 */
    197 	qat_misc_write_4(sc, ERRMSK5, ERRMSK5_CERR_C62X); /* SSM2-SSM4 */
    198 
    199 	/* Reset everything except VFtoPF1_16. */
    200 	qat_misc_read_write_and_4(sc, ERRMSK3, VF2PF1_16_C62X);
    201 	/* Disable Secure RAM correctable error interrupt */
    202 	qat_misc_read_write_or_4(sc, ERRMSK3, ERRMSK3_CERR_C62X);
    203 
    204 	/* RI CPP bus interface error detection and reporting. */
    205 	qat_misc_write_4(sc, RICPPINTCTL_C62X, RICPP_EN_C62X);
    206 
    207 	/* TI CPP bus interface error detection and reporting. */
    208 	qat_misc_write_4(sc, TICPPINTCTL_C62X, TICPP_EN_C62X);
    209 
    210 	/* Enable CFC Error interrupts and logging. */
    211 	qat_misc_write_4(sc, CPP_CFC_ERR_CTRL_C62X, CPP_CFC_UE_C62X);
    212 
    213 	/* Enable SecureRAM to fix and log Correctable errors */
    214 	qat_misc_write_4(sc, SECRAMCERR_C62X, SECRAM_CERR_C62X);
    215 
    216 	/* Enable SecureRAM Uncorrectable error interrupts and logging */
    217 	qat_misc_write_4(sc, SECRAMUERR, SECRAM_UERR_C62X);
    218 
    219 	/* Enable Push/Pull Misc Uncorrectable error interrupts and logging */
    220 	qat_misc_write_4(sc, CPPMEMTGTERR, TGT_UERR_C62X);
    221 }
    222 
    223 static void
    224 qat_c62x_disable_error_interrupts(struct qat_softc *sc)
    225 {
    226 	/* ME0-ME3 */
    227 	qat_misc_write_4(sc, ERRMSK0, ERRMSK0_UERR_C62X | ERRMSK0_CERR_C62X);
    228 	/* ME4-ME7 */
    229 	qat_misc_write_4(sc, ERRMSK1, ERRMSK1_UERR_C62X | ERRMSK1_CERR_C62X);
    230 	/* Secure RAM, CPP Push Pull, RI, TI, SSM0-SSM1, CFC */
    231 	qat_misc_write_4(sc, ERRMSK3, ERRMSK3_UERR_C62X | ERRMSK3_CERR_C62X);
    232 	/* ME8-ME9 */
    233 	qat_misc_write_4(sc, ERRMSK4, ERRMSK4_UERR_C62X | ERRMSK4_CERR_C62X);
    234 	/* SSM2-SSM4 */
    235 	qat_misc_write_4(sc, ERRMSK5, ERRMSK5_UERR_C62X | ERRMSK5_CERR_C62X);
    236 }
    237 
    238 static void
    239 qat_c62x_enable_error_correction(struct qat_softc *sc)
    240 {
    241 	u_int i, mask;
    242 
    243 	/* Enable Accel Engine error detection & correction */
    244 	for (i = 0, mask = sc->sc_ae_mask; mask; i++, mask >>= 1) {
    245 		if (!(mask & 1))
    246 			continue;
    247 		qat_misc_read_write_or_4(sc, AE_CTX_ENABLES_C62X(i),
    248 		    ENABLE_AE_ECC_ERR_C62X);
    249 		qat_misc_read_write_or_4(sc, AE_MISC_CONTROL_C62X(i),
    250 		    ENABLE_AE_ECC_PARITY_CORR_C62X);
    251 	}
    252 
    253 	/* Enable shared memory error detection & correction */
    254 	for (i = 0, mask = sc->sc_accel_mask; mask; i++, mask >>= 1) {
    255 		if (!(mask & 1))
    256 			continue;
    257 
    258 		qat_misc_read_write_or_4(sc, UERRSSMSH(i), ERRSSMSH_EN_C62X);
    259 		qat_misc_read_write_or_4(sc, CERRSSMSH(i), ERRSSMSH_EN_C62X);
    260 		qat_misc_read_write_or_4(sc, PPERR(i), PPERR_EN_C62X);
    261 	}
    262 
    263 	qat_c62x_enable_error_interrupts(sc);
    264 }
    265 
    266 const struct qat_hw qat_hw_c62x = {
    267 	.qhw_sram_bar_id = BAR_SRAM_ID_C62X,
    268 	.qhw_misc_bar_id = BAR_PMISC_ID_C62X,
    269 	.qhw_etr_bar_id = BAR_ETR_ID_C62X,
    270 	.qhw_cap_global_offset = CAP_GLOBAL_OFFSET_C62X,
    271 	.qhw_ae_offset = AE_OFFSET_C62X,
    272 	.qhw_ae_local_offset = AE_LOCAL_OFFSET_C62X,
    273 	.qhw_etr_bundle_size = ETR_BUNDLE_SIZE_C62X,
    274 	.qhw_num_banks = ETR_MAX_BANKS_C62X,
    275 	.qhw_num_rings_per_bank = ETR_MAX_RINGS_PER_BANK,
    276 	.qhw_num_accel = MAX_ACCEL_C62X,
    277 	.qhw_num_engines = MAX_AE_C62X,
    278 	.qhw_tx_rx_gap = ETR_TX_RX_GAP_C62X,
    279 	.qhw_tx_rings_mask = ETR_TX_RINGS_MASK_C62X,
    280 	.qhw_clock_per_sec = CLOCK_PER_SEC_C62X,
    281 	.qhw_fw_auth = true,
    282 	.qhw_fw_req_size = FW_REQ_DEFAULT_SZ_HW17,
    283 	.qhw_fw_resp_size = FW_RESP_DEFAULT_SZ_HW17,
    284 	.qhw_ring_asym_tx = 0,
    285 	.qhw_ring_asym_rx = 8,
    286 	.qhw_ring_sym_tx = 2,
    287 	.qhw_ring_sym_rx = 10,
    288 	.qhw_mof_fwname = AE_FW_MOF_NAME_C62X,
    289 	.qhw_mmp_fwname = AE_FW_MMP_NAME_C62X,
    290 	.qhw_prod_type = AE_FW_PROD_TYPE_C62X,
    291 	.qhw_get_accel_mask = qat_c62x_get_accel_mask,
    292 	.qhw_get_ae_mask = qat_c62x_get_ae_mask,
    293 	.qhw_get_sku = qat_c62x_get_sku,
    294 	.qhw_get_accel_cap = qat_c62x_get_accel_cap,
    295 	.qhw_get_fw_uof_name = qat_c62x_get_fw_uof_name,
    296 	.qhw_enable_intr = qat_c62x_enable_intr,
    297 	.qhw_init_admin_comms = qat_adm_mailbox_init,
    298 	.qhw_send_admin_init = qat_adm_mailbox_send_init,
    299 	.qhw_init_arb = qat_arb_init,
    300 	.qhw_get_arb_mapping = qat_c62x_get_arb_mapping,
    301 	.qhw_enable_error_correction = qat_c62x_enable_error_correction,
    302 	.qhw_disable_error_interrupts = qat_c62x_disable_error_interrupts,
    303 	.qhw_set_ssm_wdtimer = qat_set_ssm_wdtimer,
    304 	.qhw_check_slice_hang = qat_check_slice_hang,
    305 	.qhw_crypto_setup_desc = qat_hw17_crypto_setup_desc,
    306 	.qhw_crypto_setup_req_params = qat_hw17_crypto_setup_req_params,
    307 	.qhw_crypto_opaque_offset = offsetof(struct fw_la_resp, opaque_data),
    308 };
    309