[PATCH v3 11/19] net/xsc: add mailbox and structure

[WanRenyong]

Mailbox is a communication channel between driver and firmware.

Signed-off-by: WanRenyong <wa...@yunsilicon.com>
---
 drivers/net/xsc/xsc_ctrl.c |  8 ++++++++
 drivers/net/xsc/xsc_ctrl.h | 31 +++++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)

diff --git a/drivers/net/xsc/xsc_ctrl.c b/drivers/net/xsc/xsc_ctrl.c
index 956a8549e6..fe294a8bc7 100644
--- a/drivers/net/xsc/xsc_ctrl.c
+++ b/drivers/net/xsc/xsc_ctrl.c
@@ -55,3 +55,11 @@ xsc_ioctl(struct xsc_dev *dev, int cmd, int opcode,
        free(hdr);
        return ret;
 }
+
+int
+xsc_mailbox_exec(struct xsc_dev *dev, void *data_in,
+                int in_len, void *data_out, int out_len)
+{
+       /* ignore opcode in hdr->attr when cmd = XSC_IOCTL_CMDQ_RAW */
+       return xsc_ioctl(dev, XSC_IOCTL_CMDQ_RAW, 0, data_in, in_len, data_out, 
out_len);
+}
diff --git a/drivers/net/xsc/xsc_ctrl.h b/drivers/net/xsc/xsc_ctrl.h
index 833984745b..7b4d9db9ed 100644
--- a/drivers/net/xsc/xsc_ctrl.h
+++ b/drivers/net/xsc/xsc_ctrl.h
@@ -40,6 +40,35 @@ struct xsc_ioctl_hdr {
        struct xsc_ioctl_attr attr;
 };
 
+/* ioctl */
+struct xsc_inbox_hdr {
+       __be16     opcode;
+       uint8_t    rsvd[4];
+       __be16     opmod;
+};
+
+struct xsc_outbox_hdr {
+       uint8_t     status;
+       uint8_t     rsvd[3];
+       __be32      syndrome;
+};
+
+/* ioctl mbox */
+struct xsc_ioctl_mbox_in {
+       struct xsc_inbox_hdr    hdr;
+       __be16                  len;
+       __be16                  rsvd;
+       uint8_t                 data[];
+};
+
+struct xsc_ioctl_mbox_out {
+       struct xsc_outbox_hdr   hdr;
+       __be32                  error;
+       __be16                  len;
+       __be16                  rsvd;
+       uint8_t                 data[];
+};
+
 struct xsc_ioctl_data_tl {
        uint16_t table;
        uint16_t opmod;
@@ -82,5 +111,7 @@ struct xsc_ioctl_get_hwinfo {
 
 int xsc_ioctl(struct xsc_dev *dev, int cmd, int opcode,
              void *data_in, int in_len, void *data_out, int out_len);
+int xsc_mailbox_exec(struct xsc_dev *dev, void *data_in,
+                    int in_len, void *data_out, int out_len);
 
 #endif /* _XSC_CTRL_H_ */
-- 
2.25.1