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Thu, 11 Apr 2024 16:39:08 +0300 From: Alexey Romanov To: , , , , , , , , , , CC: , , , , , , Alexey Romanov Subject: [PATCH v7 13/23] drivers: crypto: meson: use fallback for 192-bit keys Date: Thu, 11 Apr 2024 16:38:22 +0300 Message-ID: <20240411133832.2896463-14-avromanov@salutedevices.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240411133832.2896463-1-avromanov@salutedevices.com> References: <20240411133832.2896463-1-avromanov@salutedevices.com> MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) To p-i-exch-sc-m02.sberdevices.ru (172.16.192.103) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 184672 [Apr 11 2024] X-KSMG-AntiSpam-Version: 6.1.0.4 X-KSMG-AntiSpam-Envelope-From: avromanov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 16 0.3.16 6e64c33514fcbd07e515710c86ba61de7f56194e, {Tracking_from_domain_doesnt_match_to}, smtp.sberdevices.ru:5.0.1,7.1.1;100.64.160.123:7.1.2;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;127.0.0.199:7.1.2;salutedevices.com:7.1.1, FromAlignment: s, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2024/04/11 09:22:00 #24744908 X-KSMG-AntiVirus-Status: Clean, skipped X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240411_063911_628517_B54AFB9F X-CRM114-Status: GOOD ( 14.93 ) X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+linux-amlogic=archiver.kernel.org@lists.infradead.org Unforunately, not all Amlogic SoC's have a 192-bit key support for AES algo. In this case, use fallback. Signed-off-by: Alexey Romanov --- drivers/crypto/amlogic/amlogic-gxl-cipher.c | 7 +++++++ drivers/crypto/amlogic/amlogic-gxl-core.c | 1 + drivers/crypto/amlogic/amlogic-gxl.h | 2 ++ 3 files changed, 10 insertions(+) diff --git a/drivers/crypto/amlogic/amlogic-gxl-cipher.c b/drivers/crypto/amlogic/amlogic-gxl-cipher.c index 14621495de84..30f248ca31c7 100644 --- a/drivers/crypto/amlogic/amlogic-gxl-cipher.c +++ b/drivers/crypto/amlogic/amlogic-gxl-cipher.c @@ -41,6 +41,13 @@ static bool meson_cipher_need_fallback_sg(struct skcipher_request *areq, static bool meson_cipher_need_fallback(struct skcipher_request *areq) { + struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(areq); + struct meson_cipher_tfm_ctx *op = crypto_skcipher_ctx_dma(tfm); + struct meson_dev *mc = op->mc; + + if (op->keymode == DESC_MODE_AES_192 && !mc->pdata->support_192bit_key) + return true; + if (areq->cryptlen == 0) return true; diff --git a/drivers/crypto/amlogic/amlogic-gxl-core.c b/drivers/crypto/amlogic/amlogic-gxl-core.c index 2c8387906655..4acacd925a21 100644 --- a/drivers/crypto/amlogic/amlogic-gxl-core.c +++ b/drivers/crypto/amlogic/amlogic-gxl-core.c @@ -283,6 +283,7 @@ static const struct meson_pdata meson_gxl_pdata = { .setup_desc_cnt = 3, .hasher_supported = false, .reverse_keyiv = true, + .support_192bit_key = true, }; static const struct of_device_id meson_crypto_of_match_table[] = { diff --git a/drivers/crypto/amlogic/amlogic-gxl.h b/drivers/crypto/amlogic/amlogic-gxl.h index 2eee3e0ea0b2..86dd9f10debe 100644 --- a/drivers/crypto/amlogic/amlogic-gxl.h +++ b/drivers/crypto/amlogic/amlogic-gxl.h @@ -98,6 +98,7 @@ struct meson_flow { * @reg_status: offset to status register * @setup_desc_cnt: number of setup descriptor to configure. * @hasher_supported: indecates whether hasher is supported. + * @support_192bit_key: indicates whether platform support AES 192-bit key */ struct meson_pdata { u32 descs_reg; @@ -105,6 +106,7 @@ struct meson_pdata { u32 setup_desc_cnt; bool hasher_supported; bool reverse_keyiv; + bool support_192bit_key; }; /*