add driver 5G

hc

2024-01-31 f9004dbfff8a3fbbd7e2a88c8a4327c7f2f8e5b2

 kernel/include/scsi/srp.h
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@@ -67,7 +67,8 @@
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 enum {
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 	SRP_NO_DATA_DESC	= 0,
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 	SRP_DATA_DESC_DIRECT	= 1,
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-	SRP_DATA_DESC_INDIRECT	= 2
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+	SRP_DATA_DESC_INDIRECT	= 2,
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+	SRP_DATA_DESC_IMM	= 3,	/* new in SRP2 */
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 };
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 enum {
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@@ -108,12 +109,19 @@
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 struct srp_indirect_buf {
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 	struct srp_direct_buf	table_desc;
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 	__be32			len;
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-	struct srp_direct_buf	desc_list[0];
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+	struct srp_direct_buf	desc_list[];
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 } __attribute__((packed));
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+/* Immediate data buffer descriptor as defined in SRP2. */
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+struct srp_imm_buf {
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+	__be32	len;
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+};
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+
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+/* srp_login_req.flags */
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 enum {
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 	SRP_MULTICHAN_SINGLE = 0,
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-	SRP_MULTICHAN_MULTI  = 1
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+	SRP_MULTICHAN_MULTI  = 1,
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+	SRP_IMMED_REQUESTED  = 0x80,	/* new in SRP2 */
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 };
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 struct srp_login_req {
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@@ -124,7 +132,9 @@
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 	u8	reserved2[4];
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 	__be16	req_buf_fmt;
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 	u8	req_flags;
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-	u8	reserved3[5];
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+	u8	reserved3[1];
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+	__be16	imm_data_offset;	/* new in SRP2 */
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+	u8	reserved4[2];
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 	u8	initiator_port_id[16];
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 	u8	target_port_id[16];
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 };
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@@ -144,6 +154,16 @@
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 	__be32	req_it_iu_len;
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 	u8	initiator_port_id[16];
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 	u8	target_port_id[16];
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+	__be16	imm_data_offset;
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+	u8	reserved[6];
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+};
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+
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+/* srp_login_rsp.rsp_flags */
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+enum {
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+	SRP_LOGIN_RSP_MULTICHAN_NO_CHAN	   = 0x0,
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+	SRP_LOGIN_RSP_MULTICHAN_TERMINATED = 0x1,
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+	SRP_LOGIN_RSP_MULTICHAN_MAINTAINED = 0x2,
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+	SRP_LOGIN_RSP_IMMED_SUPP	   = 0x80, /* new in SRP2 */
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 };
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 /*
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@@ -224,7 +244,7 @@
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 	u8	reserved4;
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 	u8	add_cdb_len;
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 	u8	cdb[16];
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-	u8	add_data[0];
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+	u8	add_data[];
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 };
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 enum {
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@@ -254,7 +274,7 @@
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 	__be32	data_in_res_cnt;
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 	__be32	sense_data_len;
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 	__be32	resp_data_len;
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-	u8	data[0];
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+	u8	data[];
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 } __attribute__((packed));
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 struct srp_cred_req {
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@@ -286,7 +306,7 @@
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 	struct scsi_lun	lun;
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 	__be32	sense_data_len;
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 	u32	reserved3;
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-	u8	sense_data[0];
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+	u8	sense_data[];
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 } __attribute__((packed));
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 struct srp_aer_rsp {