scsi: qla2xxx: Add vendor extended RDP additions and amendments

This patch adds RDP command support in the driver. With the help of new
ql2xsmartsan parameter, driver will use PUREX IOCB mode to send RDP command
to switch and will be able to receive various diagnostic data.

Link: https://lore.kernel.org/r/20200212214436.25532-8-hmadhani@marvell.com
Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

1 files changed, 135 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index d3a8fcb22c78..cb4409b8cdb1 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -1267,6 +1267,9 @@ static inline bool qla2xxx_is_valid_mbs(unsigned int mbs)
 #define RNID_TYPE_SET_VERSION	0x9
 #define RNID_TYPE_ASIC_TEMP	0xC
 
+#define ELS_CMD_MAP_SIZE	32
+#define ELS_COMMAND_RDP		0x18
+
 /*
  * Firmware state codes from get firmware state mailbox command
  */
@@ -3562,6 +3565,133 @@ struct qlfc_fw {
 	uint32_t len;
 };
 
+struct rdp_req_payload {
+	uint32_t	els_request;
+	uint32_t	desc_list_len;
+
+	/* NPIV descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint8_t  reserved;
+		uint8_t  nport_id[3];
+	} npiv_desc;
+};
+
+struct rdp_rsp_payload {
+	struct {
+		uint32_t cmd;
+		uint32_t len;
+	} hdr;
+
+	/* LS Request Info descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint32_t req_payload_word_0;
+	} ls_req_info_desc;
+
+	/* LS Request Info descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint32_t req_payload_word_0;
+	} ls_req_info_desc2;
+
+	/* SFP diagnostic param descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint16_t temperature;
+		uint16_t vcc;
+		uint16_t tx_bias;
+		uint16_t tx_power;
+		uint16_t rx_power;
+		uint16_t sfp_flags;
+	} sfp_diag_desc;
+
+	/* Port Speed Descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint16_t speed_capab;
+		uint16_t operating_speed;
+	} port_speed_desc;
+
+	/* Link Error Status Descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint32_t link_fail_cnt;
+		uint32_t loss_sync_cnt;
+		uint32_t loss_sig_cnt;
+		uint32_t prim_seq_err_cnt;
+		uint32_t inval_xmit_word_cnt;
+		uint32_t inval_crc_cnt;
+		uint8_t  pn_port_phy_type;
+		uint8_t  reserved[3];
+	} ls_err_desc;
+
+	/* Port name description with diag param */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint8_t WWNN[WWN_SIZE];
+		uint8_t WWPN[WWN_SIZE];
+	} port_name_diag_desc;
+
+	/* Port Name desc for Direct attached Fx_Port or Nx_Port */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint8_t WWNN[WWN_SIZE];
+		uint8_t WWPN[WWN_SIZE];
+	} port_name_direct_desc;
+
+	/* Buffer Credit descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint32_t fcport_b2b;
+		uint32_t attached_fcport_b2b;
+		uint32_t fcport_rtt;
+	} buffer_credit_desc;
+
+	/* Optical Element Data Descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint16_t high_alarm;
+		uint16_t low_alarm;
+		uint16_t high_warn;
+		uint16_t low_warn;
+		uint32_t element_flags;
+	} optical_elmt_desc[5];
+
+	/* Optical Product Data Descriptor */
+	struct {
+		uint32_t desc_tag;
+		uint32_t desc_len;
+		uint8_t  vendor_name[16];
+		uint8_t  part_number[16];
+		uint8_t  serial_number[16];
+		uint8_t  revision[4];
+		uint8_t  date[8];
+	} optical_prod_desc;
+};
+
+#define RDP_DESC_LEN(obj) \
+	(sizeof(obj) - sizeof((obj).desc_tag) - sizeof((obj).desc_len))
+
+#define RDP_PORT_SPEED_1GB		BIT_15
+#define RDP_PORT_SPEED_2GB		BIT_14
+#define RDP_PORT_SPEED_4GB		BIT_13
+#define RDP_PORT_SPEED_10GB		BIT_12
+#define RDP_PORT_SPEED_8GB		BIT_11
+#define RDP_PORT_SPEED_16GB		BIT_10
+#define RDP_PORT_SPEED_32GB		BIT_9
+#define RDP_PORT_SPEED_UNKNOWN		BIT_0
+
 struct scsi_qlt_host {
 	void *target_lport_ptr;
 	struct mutex tgt_mutex;
@@ -3965,6 +4095,8 @@ struct qla_hw_data {
 
 #define SFP_DEV_SIZE    512
 #define SFP_BLOCK_SIZE  64
+#define SFP_RTDI_LEN	SFP_BLOCK_SIZE
+
 	void		*sfp_data;
 	dma_addr_t	sfp_data_dma;
 
@@ -4424,6 +4556,8 @@ typedef struct scsi_qla_host {
 #define ISP_ABORT_TO_ROM	33
 #define VPORT_DELETE		34
 
+#define PROCESS_PUREX_IOCB	63
+
 	unsigned long	pci_flags;
 #define PFLG_DISCONNECTED	0	/* PCI device removed */
 #define PFLG_DRIVER_REMOVING	1	/* PCI driver .remove */
@@ -4532,6 +4666,7 @@ typedef struct scsi_qla_host {
 	uint16_t ql2xexchoffld;
 	uint16_t ql2xiniexchg;
 
+	void	*purex_data;
 	struct name_list_extended gnl;
 	/* Count of active session/fcport */
 	int fcport_count;