[SCSI] lpfc 8.3.24: Extend BSG infrastructure and add link diagnostics

Extend BSG infrastructure and add link diagnostics:
- Removed unnecessary copies in handling pass-through mbox cmds.
- Add embedded SLI_CONFIG support for BSG.
- Add multibuffer support.
- Implemented the setting up and tearing down Lancer FC device for performing
  internal and external loopback diagnostic tests.
- Implemented the driver support for performing new link diagnostic tests

Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <jbottomley@parallels.com>

1 files changed, 65 insertions, 22 deletions

diff --git a/drivers/scsi/lpfc/lpfc_bsg.h b/drivers/scsi/lpfc/lpfc_bsg.h
index b542aca6f5ae..c8c2b47ea886 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.h
+++ b/drivers/scsi/lpfc/lpfc_bsg.h
@@ -24,15 +24,17 @@
  * These are the vendor unique structures passed in using the bsg
  * FC_BSG_HST_VENDOR message code type.
  */
-#define LPFC_BSG_VENDOR_SET_CT_EVENT	1
-#define LPFC_BSG_VENDOR_GET_CT_EVENT	2
-#define LPFC_BSG_VENDOR_SEND_MGMT_RESP	3
-#define LPFC_BSG_VENDOR_DIAG_MODE	4
-#define LPFC_BSG_VENDOR_DIAG_TEST	5
-#define LPFC_BSG_VENDOR_GET_MGMT_REV	6
-#define LPFC_BSG_VENDOR_MBOX		7
-#define LPFC_BSG_VENDOR_MENLO_CMD	8
-#define LPFC_BSG_VENDOR_MENLO_DATA	9
+#define LPFC_BSG_VENDOR_SET_CT_EVENT		1
+#define LPFC_BSG_VENDOR_GET_CT_EVENT		2
+#define LPFC_BSG_VENDOR_SEND_MGMT_RESP		3
+#define LPFC_BSG_VENDOR_DIAG_MODE		4
+#define LPFC_BSG_VENDOR_DIAG_RUN_LOOPBACK	5
+#define LPFC_BSG_VENDOR_GET_MGMT_REV		6
+#define LPFC_BSG_VENDOR_MBOX			7
+#define LPFC_BSG_VENDOR_MENLO_CMD		8
+#define LPFC_BSG_VENDOR_MENLO_DATA		9
+#define LPFC_BSG_VENDOR_DIAG_MODE_END		10
+#define LPFC_BSG_VENDOR_LINK_DIAG_TEST		11
 
 struct set_ct_event {
 	uint32_t command;
@@ -67,10 +69,25 @@ struct diag_mode_set {
 	uint32_t timeout;
 };
 
+struct sli4_link_diag {
+	uint32_t command;
+	uint32_t timeout;
+	uint32_t test_id;
+	uint32_t loops;
+	uint32_t test_version;
+	uint32_t error_action;
+};
+
 struct diag_mode_test {
 	uint32_t command;
 };
 
+struct diag_status {
+	uint32_t mbox_status;
+	uint32_t shdr_status;
+	uint32_t shdr_add_status;
+};
+
 #define LPFC_WWNN_TYPE		0
 #define LPFC_WWPN_TYPE		1
 
@@ -92,11 +109,15 @@ struct get_mgmt_rev_reply {
 };
 
 #define BSG_MBOX_SIZE 4096 /* mailbox command plus extended data */
+
+/* BSG mailbox request header */
 struct dfc_mbox_req {
 	uint32_t command;
 	uint32_t mbOffset;
 	uint32_t inExtWLen;
 	uint32_t outExtWLen;
+	uint32_t extMboxTag;
+	uint32_t extSeqNum;
 };
 
 /* Used for menlo command or menlo data. The xri is only used for menlo data */
@@ -171,7 +192,7 @@ struct lpfc_sli_config_mse {
 #define lpfc_mbox_sli_config_mse_len_WORD	buf_len
 };
 
-struct lpfc_sli_config_subcmd_hbd {
+struct lpfc_sli_config_hbd {
 	uint32_t buf_len;
 #define lpfc_mbox_sli_config_ecmn_hbd_len_SHIFT	0
 #define lpfc_mbox_sli_config_ecmn_hbd_len_MASK	0xffffff
@@ -194,21 +215,39 @@ struct lpfc_sli_config_hdr {
 	uint32_t reserved5;
 };
 
-struct lpfc_sli_config_generic {
+struct lpfc_sli_config_emb0_subsys {
 	struct lpfc_sli_config_hdr	sli_config_hdr;
 #define LPFC_MBX_SLI_CONFIG_MAX_MSE     19
 	struct lpfc_sli_config_mse	mse[LPFC_MBX_SLI_CONFIG_MAX_MSE];
+	uint32_t padding;
+	uint32_t word64;
+#define lpfc_emb0_subcmnd_opcode_SHIFT	0
+#define lpfc_emb0_subcmnd_opcode_MASK	0xff
+#define lpfc_emb0_subcmnd_opcode_WORD	word64
+#define lpfc_emb0_subcmnd_subsys_SHIFT	8
+#define lpfc_emb0_subcmnd_subsys_MASK	0xff
+#define lpfc_emb0_subcmnd_subsys_WORD	word64
+/* Subsystem FCOE (0x0C) OpCodes */
+#define SLI_CONFIG_SUBSYS_FCOE		0x0C
+#define FCOE_OPCODE_READ_FCF		0x08
+#define FCOE_OPCODE_ADD_FCF		0x09
 };
 
-struct lpfc_sli_config_subcmnd {
+struct lpfc_sli_config_emb1_subsys {
 	struct lpfc_sli_config_hdr	sli_config_hdr;
 	uint32_t word6;
-#define lpfc_subcmnd_opcode_SHIFT	0
-#define lpfc_subcmnd_opcode_MASK	0xff
-#define lpfc_subcmnd_opcode_WORD	word6
-#define lpfc_subcmnd_subsys_SHIFT	8
-#define lpfc_subcmnd_subsys_MASK	0xff
-#define lpfc_subcmnd_subsys_WORD	word6
+#define lpfc_emb1_subcmnd_opcode_SHIFT	0
+#define lpfc_emb1_subcmnd_opcode_MASK	0xff
+#define lpfc_emb1_subcmnd_opcode_WORD	word6
+#define lpfc_emb1_subcmnd_subsys_SHIFT	8
+#define lpfc_emb1_subcmnd_subsys_MASK	0xff
+#define lpfc_emb1_subcmnd_subsys_WORD	word6
+/* Subsystem COMN (0x01) OpCodes */
+#define SLI_CONFIG_SUBSYS_COMN		0x01
+#define COMN_OPCODE_READ_OBJECT		0xAB
+#define COMN_OPCODE_WRITE_OBJECT	0xAC
+#define COMN_OPCODE_READ_OBJECT_LIST	0xAD
+#define COMN_OPCODE_DELETE_OBJECT	0xAE
 	uint32_t timeout;
 	uint32_t request_length;
 	uint32_t word9;
@@ -222,8 +261,8 @@ struct lpfc_sli_config_subcmnd {
 	uint32_t rd_offset;
 	uint32_t obj_name[26];
 	uint32_t hbd_count;
-#define LPFC_MBX_SLI_CONFIG_MAX_HBD	10
-	struct lpfc_sli_config_subcmd_hbd   hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
+#define LPFC_MBX_SLI_CONFIG_MAX_HBD	8
+	struct lpfc_sli_config_hbd	hbd[LPFC_MBX_SLI_CONFIG_MAX_HBD];
 };
 
 struct lpfc_sli_config_mbox {
@@ -235,7 +274,11 @@ struct lpfc_sli_config_mbox {
 #define lpfc_mqe_command_MASK		0x000000FF
 #define lpfc_mqe_command_WORD		word0
 	union {
-		struct lpfc_sli_config_generic	sli_config_generic;
-		struct lpfc_sli_config_subcmnd	sli_config_subcmnd;
+		struct lpfc_sli_config_emb0_subsys sli_config_emb0_subsys;
+		struct lpfc_sli_config_emb1_subsys sli_config_emb1_subsys;
 	} un;
 };
+
+/* driver only */
+#define SLI_CONFIG_NOT_HANDLED		0
+#define SLI_CONFIG_HANDLED		1