From patchwork Mon Jul 8 23:53:27 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Biggers X-Patchwork-Id: 811707 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8C557153824; Mon, 8 Jul 2024 23:55:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720482936; cv=none; b=bnkYnX9SG4TCKRnekuMEhFCUofHOW86BG0o4ehDGnGdn8DeL06ftHVOVXB5DRAYrbjqEC+Hb/CKGiHVIzMTMydV/XIR+hjieWgcesOB6K+Z1z7wlLS363bF51ALbp4Pr8/Cqwxbbdm0DQdk+4c2LVFqbbGf02GxOBfhRf9EzJmE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720482936; c=relaxed/simple; bh=gtwZfwrWX7QVlTTO6ZcXKsCa7LORXzdHB8PDjB63zmQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=nwVb/16mzPchwx5C57csDphfuZX+I0Ad2SQDRM/HrOXxq5WiSXvSMM380QFRChJq0+E88fTfR6gLPI3Vick2FM+PbDgtW59ceEi3a0aWVDNIhp/K0iMt6bzEyooF654Pj+B+5XT5n4K9fIbF0TD06AzYWIXGuvBF0QbmE79pX7M= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Pd/HR0lF; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Pd/HR0lF" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D2209C3277B; Mon, 8 Jul 2024 23:55:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720482936; bh=gtwZfwrWX7QVlTTO6ZcXKsCa7LORXzdHB8PDjB63zmQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Pd/HR0lFw78JXz16HC/0qqFRhpbwXmyLfOoQnvy6BQFVVsmvGwHrEE/vj3+dzUVeC V8qE6em5jm3CElWGjSnsfjbYc0FGlVR6mnkqUnbXmiUh0WoGd8Bvo7sNNELpzHuWi0 hOXUdHCW49OGO4mTRCLNkCxufKBTKhGXiJwInT3zGCBNge7bX14hV2IKEyOVv6sIQ/ bOpS9NBJwgFiKiUNVm/WYtGg2Hr0BEBZtqjirEtn/Kn8bfAvUfKXunA/yWryzD6YDu wwK65/3PVxR4tKXvBYRMXJStEH6vfDnB4mvjXzvsVLmVevCTSzj3A1R1QCZpeYKxyo SqFOgaYPT1+0w== From: Eric Biggers To: linux-scsi@vger.kernel.org Cc: linux-samsung-soc@vger.kernel.org, linux-fscrypt@vger.kernel.org, Alim Akhtar , Avri Altman , Bart Van Assche , "Martin K . Petersen" , Peter Griffin , =?utf-8?q?Andr=C3=A9_Draszik?= , William McVicker Subject: [PATCH v3 3/6] scsi: ufs: core: Add UFSHCD_QUIRK_BROKEN_CRYPTO_ENABLE Date: Mon, 8 Jul 2024 16:53:27 -0700 Message-ID: <20240708235330.103590-4-ebiggers@kernel.org> X-Mailer: git-send-email 2.45.2 In-Reply-To: <20240708235330.103590-1-ebiggers@kernel.org> References: <20240708235330.103590-1-ebiggers@kernel.org> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Eric Biggers Add UFSHCD_QUIRK_BROKEN_CRYPTO_ENABLE which tells the UFS core to not use the crypto enable bit defined by the UFS specification. This is needed to support inline encryption on the "Exynos" UFS controller. Reviewed-by: Bart Van Assche Reviewed-by: Peter Griffin Signed-off-by: Eric Biggers --- drivers/ufs/core/ufshcd-crypto.c | 8 ++++++++ include/ufs/ufshcd.h | 7 +++++++ 2 files changed, 15 insertions(+) diff --git a/drivers/ufs/core/ufshcd-crypto.c b/drivers/ufs/core/ufshcd-crypto.c index b4980fd91cee..a714dad82cd1 100644 --- a/drivers/ufs/core/ufshcd-crypto.c +++ b/drivers/ufs/core/ufshcd-crypto.c @@ -108,17 +108,25 @@ static int ufshcd_crypto_keyslot_evict(struct blk_crypto_profile *profile, union ufs_crypto_cfg_entry cfg = {}; return ufshcd_program_key(hba, &cfg, slot); } +/* + * Reprogram the keyslots if needed, and return true if CRYPTO_GENERAL_ENABLE + * should be used in the host controller initialization sequence. + */ bool ufshcd_crypto_enable(struct ufs_hba *hba) { if (!(hba->caps & UFSHCD_CAP_CRYPTO)) return false; /* Reset might clear all keys, so reprogram all the keys. */ blk_crypto_reprogram_all_keys(&hba->crypto_profile); + + if (hba->quirks & UFSHCD_QUIRK_BROKEN_CRYPTO_ENABLE) + return false; + return true; } static const struct blk_crypto_ll_ops ufshcd_crypto_ops = { .keyslot_program = ufshcd_crypto_keyslot_program, diff --git a/include/ufs/ufshcd.h b/include/ufs/ufshcd.h index b354a7eee478..4b7ad23a4420 100644 --- a/include/ufs/ufshcd.h +++ b/include/ufs/ufshcd.h @@ -650,10 +650,17 @@ enum ufshcd_quirks { * nonstandard way and/or needs to override blk_crypto_ll_ops. If * enabled, the standard code won't initialize the blk_crypto_profile; * ufs_hba_variant_ops::init() must do it instead. */ UFSHCD_QUIRK_CUSTOM_CRYPTO_PROFILE = 1 << 22, + + /* + * This quirk needs to be enabled if the host controller supports inline + * encryption but does not support the CRYPTO_GENERAL_ENABLE bit, i.e. + * host controller initialization fails if that bit is set. + */ + UFSHCD_QUIRK_BROKEN_CRYPTO_ENABLE = 1 << 23, }; enum ufshcd_caps { /* Allow dynamic clk gating */ UFSHCD_CAP_CLK_GATING = 1 << 0,