diff options
| -rw-r--r-- | drivers/scsi/aic94xx/aic94xx_task.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/libsas/sas_discover.c | 14 | ||||
| -rw-r--r-- | include/scsi/scsi_transport_sas.h | 6 |
3 files changed, 21 insertions, 3 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 6c12c0f19f39..d5d8caba3560 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -76,7 +76,7 @@ static inline int asd_map_scatterlist(struct sas_task *task, /* STP tasks come from libata which has already mapped * the SG list */ - if (task->task_proto == SAS_PROTOCOL_STP) + if (sas_protocol_ata(task->task_proto)) num_sg = task->num_scatter; else num_sg = pci_map_sg(asd_ha->pcidev, task->scatter, @@ -125,7 +125,7 @@ static inline int asd_map_scatterlist(struct sas_task *task, return 0; err_unmap: - if (task->task_proto != SAS_PROTOCOL_STP) + if (sas_protocol_ata(task->task_proto)) pci_unmap_sg(asd_ha->pcidev, task->scatter, task->num_scatter, task->data_dir); return res; diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index a18c0f6d6668..4d768db1b567 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -110,6 +110,13 @@ static int sas_execute_task(struct sas_task *task, void *buffer, int size, task->total_xfer_len = size; task->data_dir = pci_dma_dir; task->task_done = sas_disc_task_done; + if (pci_dma_dir != PCI_DMA_NONE && + sas_protocol_ata(task->task_proto)) { + task->num_scatter = pci_map_sg(task->dev->port->ha->pcidev, + task->scatter, + task->num_scatter, + task->data_dir); + } for (retries = 0; retries < 5; retries++) { task->task_state_flags = SAS_TASK_STATE_PENDING; @@ -192,8 +199,13 @@ static int sas_execute_task(struct sas_task *task, void *buffer, int size, } } ex_err: - if (pci_dma_dir != PCI_DMA_NONE) + if (pci_dma_dir != PCI_DMA_NONE) { + if (sas_protocol_ata(task->task_proto)) + pci_unmap_sg(task->dev->port->ha->pcidev, + task->scatter, task->num_scatter, + task->data_dir); kfree(scatter); + } out: return res; } diff --git a/include/scsi/scsi_transport_sas.h b/include/scsi/scsi_transport_sas.h index 9aedc19820b0..97eeb5b59ea5 100644 --- a/include/scsi/scsi_transport_sas.h +++ b/include/scsi/scsi_transport_sas.h @@ -23,6 +23,12 @@ enum sas_protocol { SAS_PROTOCOL_SSP = 0x08, }; +static inline int sas_protocol_ata(enum sas_protocol proto) +{ + return ((proto & SAS_PROTOCOL_SATA) || + (proto & SAS_PROTOCOL_STP))? 1 : 0; +} + enum sas_linkrate { /* These Values are defined in the SAS standard */ SAS_LINK_RATE_UNKNOWN = 0, |