From patchwork Mon Jul 18 12:01:16 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Bogdanov X-Patchwork-Id: 12921170 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4A9BEC43334 for ; Mon, 18 Jul 2022 12:03:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234622AbiGRMDa (ORCPT ); Mon, 18 Jul 2022 08:03:30 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49982 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234632AbiGRMD2 (ORCPT ); Mon, 18 Jul 2022 08:03:28 -0400 Received: from mta-01.yadro.com (mta-02.yadro.com [89.207.88.252]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D7E2123BE8; Mon, 18 Jul 2022 05:03:23 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by mta-01.yadro.com (Postfix) with ESMTP id 813A74126D; Mon, 18 Jul 2022 12:03:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=yadro.com; h= content-type:content-type:content-transfer-encoding:mime-version :references:in-reply-to:x-mailer:message-id:date:date:subject :subject:from:from:received:received:received:received; s= mta-01; t=1658145800; x=1659960201; bh=BcKuyO63sIT3AQXn8qV26go0J /SrKwv96L30vqifhmc=; b=dLXdOV+/AFVUIcz/isIfJpHwqibwwTfrOGG4aM75c 8jn77jBEzj4jVccmMc0NVYONue4UT7xdvCQAN0fwuYDOwGF+lciNCo5LDBUqddqT w+pJvuj3w8ST9gxL2oftsjAzje8GXiH6Gtkwn6HTsNksZ4raidy/SoYpcagttW+1 48= X-Virus-Scanned: amavisd-new at yadro.com Received: from mta-01.yadro.com ([127.0.0.1]) by localhost (mta-01.yadro.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Wv3iRVV45-ju; Mon, 18 Jul 2022 15:03:20 +0300 (MSK) Received: from T-EXCH-01.corp.yadro.com (t-exch-01.corp.yadro.com [172.17.10.101]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-SHA384 (256/256 bits)) (No client certificate requested) by mta-01.yadro.com (Postfix) with ESMTPS id 25E7941282; Mon, 18 Jul 2022 15:03:10 +0300 (MSK) Received: from T-EXCH-08.corp.yadro.com (172.17.11.58) by T-EXCH-01.corp.yadro.com (172.17.10.101) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384_P384) id 15.1.669.32; Mon, 18 Jul 2022 15:03:09 +0300 Received: from NB-591.corp.yadro.com (10.199.18.20) by T-EXCH-08.corp.yadro.com (172.17.11.58) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id 15.2.1118.9; Mon, 18 Jul 2022 15:03:08 +0300 From: Dmitry Bogdanov To: Martin Petersen , CC: , , Dmitry Bogdanov , Roman Bolshakov , "Konstantin Shelekhin" Subject: [PATCH 5/6] scsi: target: core: dynamicaly set dpofua in usage_bits Date: Mon, 18 Jul 2022 15:01:16 +0300 Message-ID: <20220718120117.4435-6-d.bogdanov@yadro.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220718120117.4435-1-d.bogdanov@yadro.com> References: <20220718120117.4435-1-d.bogdanov@yadro.com> MIME-Version: 1.0 X-Originating-IP: [10.199.18.20] X-ClientProxiedBy: T-EXCH-01.corp.yadro.com (172.17.10.101) To T-EXCH-08.corp.yadro.com (172.17.11.58) Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org libiscsi tests check the support of DPO & FUA bits in usage bits of RSOC response. This patch adds support of dynamic usage bits for each opcode. Set support of DPO & FUA bits in usage_bits of RSOC response depending on support DPOFUA in the backstore device. Reviewed-by: Roman Bolshakov Reviewed-by: Konstantin Shelekhin Signed-off-by: Dmitry Bogdanov --- drivers/target/target_core_spc.c | 36 +++++++++++++++++++++++++++++-- include/target/target_core_base.h | 2 ++ 2 files changed, 36 insertions(+), 2 deletions(-) diff --git a/drivers/target/target_core_spc.c b/drivers/target/target_core_spc.c index a86f4d917aad..27b4546d7d2c 100644 --- a/drivers/target/target_core_spc.c +++ b/drivers/target/target_core_spc.c @@ -1308,6 +1308,22 @@ spc_emulate_testunitready(struct se_cmd *cmd) return 0; } +static void set_dpofua_usage_bits(u8 *usage_bits, struct se_device *dev) +{ + if (!target_check_fua(dev)) + usage_bits[1] &= ~0x18; + else + usage_bits[1] |= 0x18; +} + +static void set_dpofua_usage_bits32(u8 *usage_bits, struct se_device *dev) +{ + if (!target_check_fua(dev)) + usage_bits[10] &= ~0x18; + else + usage_bits[10] |= 0x18; +} + static struct target_opcode_descriptor tcm_opcode_read6 = { .support = SCSI_SUPPORT_FULL, .opcode = READ_6, @@ -1323,6 +1339,7 @@ static struct target_opcode_descriptor tcm_opcode_read10 = { .usage_bits = {READ_10, 0xf8, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, 0xff, 0xff, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_read12 = { @@ -1332,6 +1349,7 @@ static struct target_opcode_descriptor tcm_opcode_read12 = { .usage_bits = {READ_12, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_read16 = { @@ -1342,6 +1360,7 @@ static struct target_opcode_descriptor tcm_opcode_read16 = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_write6 = { @@ -1359,6 +1378,7 @@ static struct target_opcode_descriptor tcm_opcode_write10 = { .usage_bits = {WRITE_10, 0xf8, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, 0xff, 0xff, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_write_verify10 = { @@ -1368,6 +1388,7 @@ static struct target_opcode_descriptor tcm_opcode_write_verify10 = { .usage_bits = {WRITE_VERIFY, 0xf0, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, 0xff, 0xff, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_write12 = { @@ -1377,6 +1398,7 @@ static struct target_opcode_descriptor tcm_opcode_write12 = { .usage_bits = {WRITE_12, 0xf8, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_write16 = { @@ -1387,6 +1409,7 @@ static struct target_opcode_descriptor tcm_opcode_write16 = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_write_verify16 = { @@ -1397,6 +1420,7 @@ static struct target_opcode_descriptor tcm_opcode_write_verify16 = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_xdwriteread10 = { @@ -1406,6 +1430,7 @@ static struct target_opcode_descriptor tcm_opcode_xdwriteread10 = { .usage_bits = {XDWRITEREAD_10, 0x18, 0xff, 0xff, 0xff, 0xff, SCSI_GROUP_NUMBER_MASK, 0xff, 0xff, SCSI_CONTROL_MASK}, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_xdwriteread32 = { @@ -1422,6 +1447,7 @@ static struct target_opcode_descriptor tcm_opcode_xdwriteread32 = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff}, + .update_usage_bits = set_dpofua_usage_bits32, }; static bool tcm_is_ws_enabled(struct se_cmd *cmd) @@ -1446,6 +1472,7 @@ static struct target_opcode_descriptor tcm_opcode_write_same32 = { 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff}, .enabled = tcm_is_ws_enabled, + .update_usage_bits = set_dpofua_usage_bits32, }; static bool tcm_is_caw_enabled(struct se_cmd *cmd) @@ -1464,6 +1491,7 @@ static struct target_opcode_descriptor tcm_opcode_compare_write = { 0xff, 0xff, 0x00, 0x00, 0x00, 0xff, SCSI_GROUP_NUMBER_MASK, SCSI_CONTROL_MASK}, .enabled = tcm_is_caw_enabled, + .update_usage_bits = set_dpofua_usage_bits, }; static struct target_opcode_descriptor tcm_opcode_read_capacity = { @@ -2052,7 +2080,8 @@ spc_rsoc_encode_command_descriptor(unsigned char *buf, u8 ctdp, static int spc_rsoc_encode_one_command_descriptor(unsigned char *buf, u8 ctdp, - struct target_opcode_descriptor *descr) + struct target_opcode_descriptor *descr, + struct se_device *dev) { int td_size = 0; @@ -2064,6 +2093,8 @@ spc_rsoc_encode_one_command_descriptor(unsigned char *buf, u8 ctdp, buf[1] = (ctdp << 7) | SCSI_SUPPORT_FULL; put_unaligned_be16(descr->cdb_size, &buf[2]); memcpy(&buf[4], descr->usage_bits, descr->cdb_size); + if (descr->update_usage_bits) + descr->update_usage_bits(&buf[4], dev); td_size = spc_rsoc_encode_command_timeouts_descriptor( &buf[4 + descr->cdb_size], ctdp, descr); @@ -2206,7 +2237,8 @@ spc_emulate_report_supp_op_codes(struct se_cmd *cmd) put_unaligned_be32(response_length - 3, buf); } else { response_length = spc_rsoc_encode_one_command_descriptor( - &buf[response_length], rctd, descr); + &buf[response_length], rctd, descr, + cmd->se_dev); } memcpy(rbuf, buf, min_t(u32, response_length, cmd->data_length)); diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h index 8f8b51d2bc7b..71811b49f154 100644 --- a/include/target/target_core_base.h +++ b/include/target/target_core_base.h @@ -880,6 +880,8 @@ struct target_opcode_descriptor { u16 nominal_timeout; u16 recommended_timeout; bool (*enabled)(struct se_cmd *cmd); + void (*update_usage_bits)(u8 *usage_bits, + struct se_device *dev); u8 usage_bits[]; };