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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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276e2e4f1f
The index in usb_string array is defined by the gadget. The gadget can choose which index entry it assigns for the serial number and which the product name. The gadget has just to ensure that the descriptor contains the proper string id which is assigned by composite. If the composite layer knows the index of the "default" information which will be overwritten by module parameters, it can be used later to overwrite it. Acked-by: Michal Nazarewicz <mina86@mina86.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Felipe Balbi <balbi@ti.com>
146 lines
3.1 KiB
C
146 lines
3.1 KiB
C
#ifndef __TARGET_USB_GADGET_H__
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#define __TARGET_USB_GADGET_H__
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#include <linux/kref.h>
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/* #include <linux/usb/uas.h> */
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#include <linux/usb/composite.h>
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#include <linux/usb/uas.h>
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#include <linux/usb/storage.h>
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#include <scsi/scsi.h>
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#include <target/target_core_base.h>
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#include <target/target_core_fabric.h>
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#define USBG_NAMELEN 32
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#define fuas_to_gadget(f) (f->function.config->cdev->gadget)
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#define UASP_SS_EP_COMP_LOG_STREAMS 4
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#define UASP_SS_EP_COMP_NUM_STREAMS (1 << UASP_SS_EP_COMP_LOG_STREAMS)
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enum {
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USB_G_STR_CONFIG = USB_GADGET_FIRST_AVAIL_IDX,
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USB_G_STR_INT_UAS,
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USB_G_STR_INT_BBB,
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};
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#define USB_G_ALT_INT_BBB 0
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#define USB_G_ALT_INT_UAS 1
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struct usbg_nacl {
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/* Binary World Wide unique Port Name for SAS Initiator port */
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u64 iport_wwpn;
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/* ASCII formatted WWPN for Sas Initiator port */
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char iport_name[USBG_NAMELEN];
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/* Returned by usbg_make_nodeacl() */
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struct se_node_acl se_node_acl;
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};
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struct tcm_usbg_nexus {
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struct se_session *tvn_se_sess;
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};
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struct usbg_tpg {
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struct mutex tpg_mutex;
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/* SAS port target portal group tag for TCM */
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u16 tport_tpgt;
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/* Pointer back to usbg_tport */
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struct usbg_tport *tport;
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struct workqueue_struct *workqueue;
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/* Returned by usbg_make_tpg() */
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struct se_portal_group se_tpg;
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u32 gadget_connect;
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struct tcm_usbg_nexus *tpg_nexus;
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atomic_t tpg_port_count;
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};
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struct usbg_tport {
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/* SCSI protocol the tport is providing */
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u8 tport_proto_id;
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/* Binary World Wide unique Port Name for SAS Target port */
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u64 tport_wwpn;
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/* ASCII formatted WWPN for SAS Target port */
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char tport_name[USBG_NAMELEN];
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/* Returned by usbg_make_tport() */
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struct se_wwn tport_wwn;
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};
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enum uas_state {
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UASP_SEND_DATA,
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UASP_RECEIVE_DATA,
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UASP_SEND_STATUS,
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UASP_QUEUE_COMMAND,
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};
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#define USBG_MAX_CMD 64
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struct usbg_cmd {
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/* common */
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u8 cmd_buf[USBG_MAX_CMD];
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u32 data_len;
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struct work_struct work;
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int unpacked_lun;
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struct se_cmd se_cmd;
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void *data_buf; /* used if no sg support available */
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struct f_uas *fu;
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struct completion write_complete;
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struct kref ref;
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/* UAS only */
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u16 tag;
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u16 prio_attr;
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struct sense_iu sense_iu;
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enum uas_state state;
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struct uas_stream *stream;
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/* BOT only */
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__le32 bot_tag;
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unsigned int csw_code;
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unsigned is_read:1;
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};
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struct uas_stream {
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struct usb_request *req_in;
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struct usb_request *req_out;
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struct usb_request *req_status;
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};
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struct usbg_cdb {
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struct usb_request *req;
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void *buf;
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};
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struct bot_status {
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struct usb_request *req;
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struct bulk_cs_wrap csw;
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};
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struct f_uas {
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struct usbg_tpg *tpg;
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struct usb_function function;
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u16 iface;
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u32 flags;
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#define USBG_ENABLED (1 << 0)
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#define USBG_IS_UAS (1 << 1)
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#define USBG_USE_STREAMS (1 << 2)
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#define USBG_IS_BOT (1 << 3)
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#define USBG_BOT_CMD_PEND (1 << 4)
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struct usbg_cdb cmd;
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struct usb_ep *ep_in;
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struct usb_ep *ep_out;
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/* UAS */
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struct usb_ep *ep_status;
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struct usb_ep *ep_cmd;
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struct uas_stream stream[UASP_SS_EP_COMP_NUM_STREAMS];
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/* BOT */
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struct bot_status bot_status;
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struct usb_request *bot_req_in;
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struct usb_request *bot_req_out;
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};
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extern struct usbg_tpg *the_only_tpg_I_currently_have;
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#endif
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