diff options
Diffstat (limited to 'drivers/scsi/qla2xxx/tcm_qla2xxx.c')
| -rw-r--r-- | drivers/scsi/qla2xxx/tcm_qla2xxx.c | 59 |
1 files changed, 24 insertions, 35 deletions
diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index a6da313e253b..f85b9e5c1f05 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -2,12 +2,9 @@ * This file contains tcm implementation using v4 configfs fabric infrastructure * for QLogic target mode HBAs * - * ?? Copyright 2010-2011 RisingTide Systems LLC. + * (c) Copyright 2010-2013 Datera, Inc. * - * Licensed to the Linux Foundation under the General Public License (GPL) - * version 2. - * - * Author: Nicholas A. Bellinger <nab@risingtidesystems.com> + * Author: Nicholas A. Bellinger <nab@daterainc.com> * * tcm_qla2xxx_parse_wwn() and tcm_qla2xxx_format_wwn() contains code from * the TCM_FC / Open-FCoE.org fabric module. @@ -360,6 +357,14 @@ static int tcm_qla2xxx_check_prod_write_protect(struct se_portal_group *se_tpg) return QLA_TPG_ATTRIB(tpg)->prod_mode_write_protect; } +static int tcm_qla2xxx_check_demo_mode_login_only(struct se_portal_group *se_tpg) +{ + struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, + struct tcm_qla2xxx_tpg, se_tpg); + + return QLA_TPG_ATTRIB(tpg)->demo_mode_login_only; +} + static struct se_node_acl *tcm_qla2xxx_alloc_fabric_acl( struct se_portal_group *se_tpg) { @@ -489,38 +494,13 @@ static u32 tcm_qla2xxx_sess_get_index(struct se_session *se_sess) return 0; } -/* - * The LIO target core uses DMA_TO_DEVICE to mean that data is going - * to the target (eg handling a WRITE) and DMA_FROM_DEVICE to mean - * that data is coming from the target (eg handling a READ). However, - * this is just the opposite of what we have to tell the DMA mapping - * layer -- eg when handling a READ, the HBA will have to DMA the data - * out of memory so it can send it to the initiator, which means we - * need to use DMA_TO_DEVICE when we map the data. - */ -static enum dma_data_direction tcm_qla2xxx_mapping_dir(struct se_cmd *se_cmd) -{ - if (se_cmd->se_cmd_flags & SCF_BIDI) - return DMA_BIDIRECTIONAL; - - switch (se_cmd->data_direction) { - case DMA_TO_DEVICE: - return DMA_FROM_DEVICE; - case DMA_FROM_DEVICE: - return DMA_TO_DEVICE; - case DMA_NONE: - default: - return DMA_NONE; - } -} - static int tcm_qla2xxx_write_pending(struct se_cmd *se_cmd) { struct qla_tgt_cmd *cmd = container_of(se_cmd, struct qla_tgt_cmd, se_cmd); cmd->bufflen = se_cmd->data_length; - cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd); + cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); cmd->sg_cnt = se_cmd->t_data_nents; cmd->sg = se_cmd->t_data_sg; @@ -656,7 +636,7 @@ static int tcm_qla2xxx_queue_data_in(struct se_cmd *se_cmd) struct qla_tgt_cmd, se_cmd); cmd->bufflen = se_cmd->data_length; - cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd); + cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); cmd->sg_cnt = se_cmd->t_data_nents; @@ -680,7 +660,7 @@ static int tcm_qla2xxx_queue_status(struct se_cmd *se_cmd) cmd->sg = NULL; cmd->sg_cnt = 0; cmd->offset = 0; - cmd->dma_data_direction = tcm_qla2xxx_mapping_dir(se_cmd); + cmd->dma_data_direction = target_reverse_dma_direction(se_cmd); cmd->aborted = (se_cmd->transport_state & CMD_T_ABORTED); if (se_cmd->data_direction == DMA_FROM_DEVICE) { @@ -939,11 +919,19 @@ DEF_QLA_TPG_ATTR_BOOL(prod_mode_write_protect); DEF_QLA_TPG_ATTRIB(prod_mode_write_protect); QLA_TPG_ATTR(prod_mode_write_protect, S_IRUGO | S_IWUSR); +/* + * Define tcm_qla2xxx_tpg_attrib_s_demo_mode_login_only + */ +DEF_QLA_TPG_ATTR_BOOL(demo_mode_login_only); +DEF_QLA_TPG_ATTRIB(demo_mode_login_only); +QLA_TPG_ATTR(demo_mode_login_only, S_IRUGO | S_IWUSR); + static struct configfs_attribute *tcm_qla2xxx_tpg_attrib_attrs[] = { &tcm_qla2xxx_tpg_attrib_generate_node_acls.attr, &tcm_qla2xxx_tpg_attrib_cache_dynamic_acls.attr, &tcm_qla2xxx_tpg_attrib_demo_mode_write_protect.attr, &tcm_qla2xxx_tpg_attrib_prod_mode_write_protect.attr, + &tcm_qla2xxx_tpg_attrib_demo_mode_login_only.attr, NULL, }; @@ -1042,6 +1030,7 @@ static struct se_portal_group *tcm_qla2xxx_make_tpg( QLA_TPG_ATTRIB(tpg)->generate_node_acls = 1; QLA_TPG_ATTRIB(tpg)->demo_mode_write_protect = 1; QLA_TPG_ATTRIB(tpg)->cache_dynamic_acls = 1; + QLA_TPG_ATTRIB(tpg)->demo_mode_login_only = 1; ret = core_tpg_register(&tcm_qla2xxx_fabric_configfs->tf_ops, wwn, &tpg->se_tpg, tpg, TRANSPORT_TPG_TYPE_NORMAL); @@ -1736,7 +1725,7 @@ static struct target_core_fabric_ops tcm_qla2xxx_ops = { tcm_qla2xxx_check_demo_write_protect, .tpg_check_prod_mode_write_protect = tcm_qla2xxx_check_prod_write_protect, - .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true, + .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, @@ -1784,7 +1773,7 @@ static struct target_core_fabric_ops tcm_qla2xxx_npiv_ops = { .tpg_check_demo_mode_cache = tcm_qla2xxx_check_true, .tpg_check_demo_mode_write_protect = tcm_qla2xxx_check_true, .tpg_check_prod_mode_write_protect = tcm_qla2xxx_check_false, - .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_true, + .tpg_check_demo_mode_login_only = tcm_qla2xxx_check_demo_mode_login_only, .tpg_alloc_fabric_acl = tcm_qla2xxx_alloc_fabric_acl, .tpg_release_fabric_acl = tcm_qla2xxx_release_fabric_acl, .tpg_get_inst_index = tcm_qla2xxx_tpg_get_inst_index, |
