target/tcm_qla2xxx: Add/use target_reverse_dma_direction() in target_core_fabric.h

[platform/adaptation/renesas_rcar/renesas_kernel.git] / drivers / scsi / qla2xxx / tcm_qla2xxx.c

diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
index 6a93a91..f790fca 100644 (file)
--- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c
+++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c
@@ -497,38 +497,13 @@ 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;
@@ -664,7 +639,7 @@ 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;
@@ -688,7 +663,7 @@ 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) {