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misc: mic: Common MIC header file changes in preparation for SCIF 

Update mic_bootparam and define the maximum number of DMA channels

Reviewed-by: Nikhil Rao <nikhil.rao@intel.com>
Reviewed-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sudeep Dutt 2015-04-29 05:32:32 -07:00 committed by Greg Kroah-Hartman
parent b55f0359c1
commit c9d5c53db9
2 changed files with 15 additions and 0 deletions
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3
drivers/misc/mic/common/mic_dev.h
View File

@ -48,4 +48,7 @@ struct mic_mw {
#define MIC_VIRTIO_PARAM_DEV_REMOVE 0x1
#define MIC_VIRTIO_PARAM_CONFIG_CHANGED 0x2
/* Maximum number of DMA channels */
#define MIC_MAX_DMA_CHAN 4
#endif

12
include/uapi/linux/mic_common.h
View File

@ -80,6 +80,12 @@ struct mic_device_ctrl {
* @h2c_config_db: Host to Card Virtio config doorbell set by card
* @shutdown_status: Card shutdown status set by card
* @shutdown_card: Set to 1 by the host when a card shutdown is initiated
* @tot_nodes: Total number of nodes in the SCIF network
* @node_id: Unique id of the node
* @h2c_scif_db - Host to card SCIF doorbell set by card
* @c2h_scif_db - Card to host SCIF doorbell set by host
* @scif_host_dma_addr - SCIF host queue pair DMA address
* @scif_card_dma_addr - SCIF card queue pair DMA address
*/
struct mic_bootparam {
__le32 magic;
@ -88,6 +94,12 @@ struct mic_bootparam {
__s8 h2c_config_db;
__u8 shutdown_status;
__u8 shutdown_card;
__u8 tot_nodes;
__u8 node_id;
__u8 h2c_scif_db;
__u8 c2h_scif_db;
__u64 scif_host_dma_addr;
__u64 scif_card_dma_addr;
} __attribute__ ((aligned(8)));
/**