From: Haren Myneni Subject: [PATCH V3 5/6] crypto/nx: Add P9 NX specific error codes for 842 engine Date: Fri, 21 Jul 2017 22:00:48 -0700 Message-ID: <1500699648.23205.7.camel@hbabu-laptop> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: linux-crypto@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, mikey@neuling.org, benh@kernel.crashing.org, suka@us.ibm.com, ddstreet@ieee.org, linuxram@us.ibm.com, npiggin@gmail.com, hbabu@us.ibm.com To: mpe@ellerman.id.au, herbert@gondor.apana.org.au Return-path: Received: from mx0a-001b2d01.pphosted.com ([148.163.156.1]:60227 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750797AbdGVFA5 (ORCPT ); Sat, 22 Jul 2017 01:00:57 -0400 Received: from pps.filterd (m0098410.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v6M4xa7k135741 for ; Sat, 22 Jul 2017 01:00:57 -0400 Received: from e32.co.us.ibm.com (e32.co.us.ibm.com [32.97.110.150]) by mx0a-001b2d01.pphosted.com with ESMTP id 2buyhq8yqv-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Sat, 22 Jul 2017 01:00:57 -0400 Received: from localhost by e32.co.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 21 Jul 2017 23:00:56 -0600 Sender: linux-crypto-owner@vger.kernel.org List-ID: This patch adds changes for checking P9 specific 842 engine error codes. These errros are reported in coprocessor status block (CSB) for failures. Signed-off-by: Haren Myneni --- arch/powerpc/include/asm/icswx.h | 3 +++ drivers/crypto/nx/nx-842-powernv.c | 18 ++++++++++++++++++ drivers/crypto/nx/nx-842.h | 8 ++++++++ 3 files changed, 29 insertions(+) diff --git a/arch/powerpc/include/asm/icswx.h b/arch/powerpc/include/asm/icswx.h index 27e588f6c72e..6a2c87577541 100644 --- a/arch/powerpc/include/asm/icswx.h +++ b/arch/powerpc/include/asm/icswx.h @@ -69,7 +69,10 @@ struct coprocessor_completion_block { #define CSB_CC_WR_PROTECTION (16) #define CSB_CC_UNKNOWN_CODE (17) #define CSB_CC_ABORT (18) +#define CSB_CC_EXCEED_BYTE_COUNT (19) /* P9 or later */ #define CSB_CC_TRANSPORT (20) +#define CSB_CC_INVALID_CRB (21) /* P9 or later */ +#define CSB_CC_INVALID_DDE (30) /* P9 or later */ #define CSB_CC_SEGMENTED_DDL (31) #define CSB_CC_PROGRESS_POINT (32) #define CSB_CC_DDE_OVERFLOW (33) diff --git a/drivers/crypto/nx/nx-842-powernv.c b/drivers/crypto/nx/nx-842-powernv.c index 829b5cad0043..c0dd4c7e17d3 100644 --- a/drivers/crypto/nx/nx-842-powernv.c +++ b/drivers/crypto/nx/nx-842-powernv.c @@ -243,6 +243,13 @@ static int wait_for_csb(struct nx842_workmem *wmem, case CSB_CC_TEMPL_OVERFLOW: CSB_ERR(csb, "Compressed data template shows data past end"); return -EINVAL; + case CSB_CC_EXCEED_BYTE_COUNT: /* P9 or later */ + /* + * DDE byte count exceeds the limit specified in Maximum + * byte count register. + */ + CSB_ERR(csb, "DDE byte count exceeds the limit"); + return -EINVAL; /* these should not happen */ case CSB_CC_INVALID_ALIGN: @@ -284,9 +291,17 @@ static int wait_for_csb(struct nx842_workmem *wmem, CSB_ERR(csb, "Too many DDEs in DDL"); return -EINVAL; case CSB_CC_TRANSPORT: + case CSB_CC_INVALID_CRB: /* P9 or later */ /* shouldn't happen, we setup CRB correctly */ CSB_ERR(csb, "Invalid CRB"); return -EINVAL; + case CSB_CC_INVALID_DDE: /* P9 or later */ + /* + * shouldn't happen, setup_direct/indirect_dde creates + * DDE right + */ + CSB_ERR(csb, "Invalid DDE"); + return -EINVAL; case CSB_CC_SEGMENTED_DDL: /* shouldn't happen, setup_ddl creates DDL right */ CSB_ERR(csb, "Segmented DDL error"); @@ -330,6 +345,9 @@ static int wait_for_csb(struct nx842_workmem *wmem, case CSB_CC_HW: CSB_ERR(csb, "Correctable hardware error"); return -EPROTO; + case CSB_CC_HW_EXPIRED_TIMER: /* P9 or later */ + CSB_ERR(csb, "Job did not finish within allowed time"); + return -EPROTO; default: CSB_ERR(csb, "Invalid CC %d", csb->cc); diff --git a/drivers/crypto/nx/nx-842.h b/drivers/crypto/nx/nx-842.h index 30929bd7d1a9..bb2f31792683 100644 --- a/drivers/crypto/nx/nx-842.h +++ b/drivers/crypto/nx/nx-842.h @@ -76,9 +76,17 @@ #define CSB_CC_DECRYPT_OVERFLOW (64) /* asym crypt codes */ #define CSB_CC_MINV_OVERFLOW (128) +/* + * HW error - Job did not finish in the maximum time allowed. + * Job terminated. + */ +#define CSB_CC_HW_EXPIRED_TIMER (224) /* These are reserved for hypervisor use */ #define CSB_CC_HYP_RESERVE_START (240) #define CSB_CC_HYP_RESERVE_END (253) +#define CSB_CC_HYP_RESERVE_P9_END (251) +/* No valid interrupt server (P9 or later). */ +#define CSB_CC_HYP_RESERVE_NO_INTR_SERVER (252) #define CSB_CC_HYP_NO_HW (254) #define CSB_CC_HYP_HANG_ABORTED (255) -- 2.11.0