net/ncsi: Add NCSI Broadcom OEM command
This patch adds OEM Broadcom commands and response handling. It also
defines OEM Get MAC Address handler to get and configure the device.
ncsi_oem_gma_handler_bcm: This handler send NCSI broadcom command for
getting mac address.
ncsi_rsp_handler_oem_bcm: This handles response received for all
broadcom OEM commands.
ncsi_rsp_handler_oem_bcm_gma: This handles get mac address response and
set it to device.
Signed-off-by: Vijay Khemka <vijaykhemka@fb.com>
Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ncsi/ncsi-manage.c b/net/ncsi/ncsi-manage.c
index 6aa0614..bfc43b2 100644
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -651,6 +651,72 @@ static int set_one_vid(struct ncsi_dev_priv *ndp, struct ncsi_channel *nc,
return 0;
}
+#if IS_ENABLED(CONFIG_NCSI_OEM_CMD_GET_MAC)
+
+/* NCSI OEM Command APIs */
+static int ncsi_oem_gma_handler_bcm(struct ncsi_cmd_arg *nca)
+{
+ unsigned char data[NCSI_OEM_BCM_CMD_GMA_LEN];
+ int ret = 0;
+
+ nca->payload = NCSI_OEM_BCM_CMD_GMA_LEN;
+
+ memset(data, 0, NCSI_OEM_BCM_CMD_GMA_LEN);
+ *(unsigned int *)data = ntohl(NCSI_OEM_MFR_BCM_ID);
+ data[5] = NCSI_OEM_BCM_CMD_GMA;
+
+ nca->data = data;
+
+ ret = ncsi_xmit_cmd(nca);
+ if (ret)
+ netdev_err(nca->ndp->ndev.dev,
+ "NCSI: Failed to transmit cmd 0x%x during configure\n",
+ nca->type);
+ return ret;
+}
+
+/* OEM Command handlers initialization */
+static struct ncsi_oem_gma_handler {
+ unsigned int mfr_id;
+ int (*handler)(struct ncsi_cmd_arg *nca);
+} ncsi_oem_gma_handlers[] = {
+ { NCSI_OEM_MFR_BCM_ID, ncsi_oem_gma_handler_bcm }
+};
+
+static int ncsi_gma_handler(struct ncsi_cmd_arg *nca, unsigned int mf_id)
+{
+ struct ncsi_oem_gma_handler *nch = NULL;
+ int i;
+
+ /* This function should only be called once, return if flag set */
+ if (nca->ndp->gma_flag == 1)
+ return -1;
+
+ /* Find gma handler for given manufacturer id */
+ for (i = 0; i < ARRAY_SIZE(ncsi_oem_gma_handlers); i++) {
+ if (ncsi_oem_gma_handlers[i].mfr_id == mf_id) {
+ if (ncsi_oem_gma_handlers[i].handler)
+ nch = &ncsi_oem_gma_handlers[i];
+ break;
+ }
+ }
+
+ if (!nch) {
+ netdev_err(nca->ndp->ndev.dev,
+ "NCSI: No GMA handler available for MFR-ID (0x%x)\n",
+ mf_id);
+ return -1;
+ }
+
+ /* Set the flag for GMA command which should only be called once */
+ nca->ndp->gma_flag = 1;
+
+ /* Get Mac address from NCSI device */
+ return nch->handler(nca);
+}
+
+#endif /* CONFIG_NCSI_OEM_CMD_GET_MAC */
+
static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
{
struct ncsi_dev *nd = &ndp->ndev;
@@ -701,7 +767,23 @@ static void ncsi_configure_channel(struct ncsi_dev_priv *ndp)
goto error;
}
+ nd->state = ncsi_dev_state_config_oem_gma;
+ break;
+ case ncsi_dev_state_config_oem_gma:
nd->state = ncsi_dev_state_config_clear_vids;
+ ret = -1;
+
+#if IS_ENABLED(CONFIG_NCSI_OEM_CMD_GET_MAC)
+ nca.type = NCSI_PKT_CMD_OEM;
+ nca.package = np->id;
+ nca.channel = nc->id;
+ ndp->pending_req_num = 1;
+ ret = ncsi_gma_handler(&nca, nc->version.mf_id);
+#endif /* CONFIG_NCSI_OEM_CMD_GET_MAC */
+
+ if (ret < 0)
+ schedule_work(&ndp->work);
+
break;
case ncsi_dev_state_config_clear_vids:
case ncsi_dev_state_config_svf: