hisi_sas: Add HW DMA structures

Signed-off-by: John Garry <john.garry@huawei.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h
index 87f4b61028ebf3f2a34ff32b162a98ea79ae5a6a..19d40b76508fdd8eb59dcdd68a67d5e1863cadbe 100644 (file)
--- a/drivers/scsi/hisi_sas/hisi_sas.h
+++ b/drivers/scsi/hisi_sas/hisi_sas.h
@@ -66,5 +66,136 @@ struct hisi_hba {
        const struct hisi_sas_hw *hw;   /* Low level hw interface */
 };
 
+/* Generic HW DMA host memory structures */
+/* Delivery queue header */
+struct hisi_sas_cmd_hdr {
+       /* dw0 */
+       __le32 dw0;
+
+       /* dw1 */
+       __le32 dw1;
+
+       /* dw2 */
+       __le32 dw2;
+
+       /* dw3 */
+       __le32 transfer_tags;
+
+       /* dw4 */
+       __le32 data_transfer_len;
+
+       /* dw5 */
+       __le32 first_burst_num;
+
+       /* dw6 */
+       __le32 sg_len;
+
+       /* dw7 */
+       __le32 dw7;
+
+       /* dw8-9 */
+       __le64 cmd_table_addr;
+
+       /* dw10-11 */
+       __le64 sts_buffer_addr;
+
+       /* dw12-13 */
+       __le64 prd_table_addr;
+
+       /* dw14-15 */
+       __le64 dif_prd_table_addr;
+};
+
+struct hisi_sas_itct {
+       __le64 qw0;
+       __le64 sas_addr;
+       __le64 qw2;
+       __le64 qw3;
+       __le64 qw4;
+       __le64 qw_sata_ncq0_3;
+       __le64 qw_sata_ncq7_4;
+       __le64 qw_sata_ncq11_8;
+       __le64 qw_sata_ncq15_12;
+       __le64 qw_sata_ncq19_16;
+       __le64 qw_sata_ncq23_20;
+       __le64 qw_sata_ncq27_24;
+       __le64 qw_sata_ncq31_28;
+       __le64 qw_non_ncq_iptt;
+       __le64 qw_rsvd0;
+       __le64 qw_rsvd1;
+};
+
+struct hisi_sas_iost {
+       __le64 qw0;
+       __le64 qw1;
+       __le64 qw2;
+       __le64 qw3;
+};
+
+struct hisi_sas_err_record {
+       /* dw0 */
+       __le32 dma_err_type;
+
+       /* dw1 */
+       __le32 trans_tx_fail_type;
+
+       /* dw2 */
+       __le32 trans_rx_fail_type;
+
+       /* dw3 */
+       u32 rsvd;
+};
+
+struct hisi_sas_initial_fis {
+       struct hisi_sas_err_record err_record;
+       struct dev_to_host_fis fis;
+       u32 rsvd[3];
+};
+
+struct hisi_sas_breakpoint {
+       u8      data[128];      /*io128 byte*/
+};
+
+struct hisi_sas_sge {
+       __le64 addr;
+       __le32 page_ctrl_0;
+       __le32 page_ctrl_1;
+       __le32 data_len;
+       __le32 data_off;
+};
+
+struct hisi_sas_command_table_smp {
+       u8 bytes[44];
+};
+
+struct hisi_sas_command_table_stp {
+       struct  host_to_dev_fis command_fis;
+       u8      dummy[12];
+       u8      atapi_cdb[ATAPI_CDB_LEN];
+};
+
 #define HISI_SAS_SGE_PAGE_CNT SCSI_MAX_SG_SEGMENTS
+struct hisi_sas_sge_page {
+       struct hisi_sas_sge sge[HISI_SAS_SGE_PAGE_CNT];
+};
+
+struct hisi_sas_command_table_ssp {
+       struct ssp_frame_hdr hdr;
+       union {
+               struct {
+                       struct ssp_command_iu task;
+                       u32 prot[6];
+               };
+               struct ssp_tmf_iu ssp_task;
+               struct xfer_rdy_iu xfer_rdy;
+               struct ssp_response_iu ssp_res;
+       } u;
+};
+
+union hisi_sas_command_table {
+       struct hisi_sas_command_table_ssp ssp;
+       struct hisi_sas_command_table_smp smp;
+       struct hisi_sas_command_table_stp stp;
+};
+
 #endif