Commit 7ebb336e authored by Quinn Tran's avatar Quinn Tran Committed by Martin K. Petersen
Browse files

scsi: qla2xxx: edif: Add start + stop bsgs 

Some FC adapters from Marvell offer the ability to encrypt data in flight
(EDIF). This feature requires an application to act as an authenticator.

Add two new BSG calls:

 - QL_VND_SC_APP_START: Application will announce its presence to driver
   with this call. Driver will restart all connections to see if remote
   device supports security or not.

 - QL_VND_SC_APP_STOP: Application announces it is in the process of
   exiting. Driver will restart all connections to revert back to
   non-secure. Provided the remote device is willing to allow a non-secure
   connection.

Link: https://lore.kernel.org/r/20210624052606.21613-2-njavali@marvell.com


Reviewed-by: default avatarHannes Reinecke <hare@suse.de>
Reviewed-by: default avatarHimanshu Madhani <himanshu.madhani@oracle.com>
Co-developed-by: default avatarLarry Wisneski <Larry.Wisneski@marvell.com>
Signed-off-by: default avatarLarry Wisneski <Larry.Wisneski@marvell.com>
Co-developed-by: default avatarDuane Grigsby <duane.grigsby@marvell.com>
Signed-off-by: default avatarDuane Grigsby <duane.grigsby@marvell.com>
Co-developed-by: default avatarRick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: default avatarRick Hicksted Jr <rhicksted@marvell.com>
Signed-off-by: default avatarQuinn Tran <qutran@marvell.com>
Signed-off-by: default avatarNilesh Javali <njavali@marvell.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent cb51bcd5

drivers/scsi/qla2xxx/Makefile

+2 −1
Original line number Diff line number Diff line 
# SPDX-License-Identifier: GPL-2.0

qla2xxx-y := qla_os.o qla_init.o qla_mbx.o qla_iocb.o qla_isr.o qla_gs.o \

		qla_dbg.o qla_sup.o qla_attr.o qla_mid.o qla_dfs.o qla_bsg.o \

		qla_nx.o qla_mr.o qla_nx2.o qla_target.o qla_tmpl.o qla_nvme.o

		qla_nx.o qla_mr.o qla_nx2.o qla_target.o qla_tmpl.o qla_nvme.o \

		qla_edif.o



obj-$(CONFIG_SCSI_QLA_FC) += qla2xxx.o

obj-$(CONFIG_TCM_QLA2XXX) += tcm_qla2xxx.o

drivers/scsi/qla2xxx/qla_bsg.c

+3 −0
Original line number Diff line number Diff line
@@ -2840,6 +2840,9 @@ qla2x00_process_vendor_specific(struct bsg_job *bsg_job) 
	case QL_VND_DPORT_DIAGNOSTICS:

		return qla2x00_do_dport_diagnostics(bsg_job);



	case QL_VND_EDIF_MGMT:

		return qla_edif_app_mgmt(bsg_job);



	case QL_VND_SS_GET_FLASH_IMAGE_STATUS:

		return qla2x00_get_flash_image_status(bsg_job);

drivers/scsi/qla2xxx/qla_bsg.h

+3 −0
Original line number Diff line number Diff line
@@ -31,6 +31,7 @@ 
#define QL_VND_DPORT_DIAGNOSTICS	0x19

#define QL_VND_GET_PRIV_STATS_EX	0x1A

#define QL_VND_SS_GET_FLASH_IMAGE_STATUS	0x1E

#define QL_VND_EDIF_MGMT                0X1F

#define QL_VND_MANAGE_HOST_STATS	0x23

#define QL_VND_GET_HOST_STATS		0x24

#define QL_VND_GET_TGT_STATS		0x25
@@ -294,4 +295,6 @@ struct qla_active_regions { 
	uint8_t reserved[32];

} __packed;



#include "qla_edif_bsg.h"



#endif

drivers/scsi/qla2xxx/qla_dbg.h

+1 −0
Original line number Diff line number Diff line
@@ -367,6 +367,7 @@ ql_log_qp(uint32_t, struct qla_qpair *, int32_t, const char *fmt, ...); 
#define ql_dbg_tgt_mgt	0x00002000 /* Target mode management */

#define ql_dbg_tgt_tmr	0x00001000 /* Target mode task management */

#define ql_dbg_tgt_dif  0x00000800 /* Target mode dif */

#define ql_dbg_edif	0x00000400 /* edif and purex debug */



extern int qla27xx_dump_mpi_ram(struct qla_hw_data *, uint32_t, uint32_t *,

	uint32_t, void **);

drivers/scsi/qla2xxx/qla_def.h

+47 −23
Original line number Diff line number Diff line
@@ -49,6 +49,28 @@ typedef struct { 
	uint8_t domain;

} le_id_t;



/*

 * 24 bit port ID type definition.

 */

typedef union {

	uint32_t b24 : 24;

	struct {

#ifdef __BIG_ENDIAN

		uint8_t domain;

		uint8_t area;

		uint8_t al_pa;

#elif defined(__LITTLE_ENDIAN)

		uint8_t al_pa;

		uint8_t area;

		uint8_t domain;

#else

#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"

#endif

		uint8_t rsvd_1;

	} b;

} port_id_t;

#define INVALID_PORT_ID	0xFFFFFF



#include "qla_bsg.h"

#include "qla_dsd.h"

#include "qla_nx.h"
@@ -345,6 +367,8 @@ struct name_list_extended { 
#define FW_MAX_EXCHANGES_CNT (32 * 1024)

#define REDUCE_EXCHANGES_CNT  (8 * 1024)



#define SET_DID_STATUS(stat_var, status) (stat_var = status << 16)



struct req_que;

struct qla_tgt_sess;
@@ -373,29 +397,6 @@ struct srb_cmd { 


/* To identify if a srb is of T10-CRC type. @sp => srb_t pointer */

#define IS_PROT_IO(sp)	(sp->flags & SRB_CRC_CTX_DSD_VALID)



/*

 * 24 bit port ID type definition.

 */

typedef union {

	uint32_t b24 : 24;



	struct {

#ifdef __BIG_ENDIAN

		uint8_t domain;

		uint8_t area;

		uint8_t al_pa;

#elif defined(__LITTLE_ENDIAN)

		uint8_t al_pa;

		uint8_t area;

		uint8_t domain;

#else

#error "__BIG_ENDIAN or __LITTLE_ENDIAN must be defined!"

#endif

		uint8_t rsvd_1;

	} b;

} port_id_t;

#define INVALID_PORT_ID	0xFFFFFF

#define ISP_REG16_DISCONNECT 0xFFFF



static inline le_id_t be_id_to_le(be_id_t id)
@@ -2424,6 +2425,7 @@ enum discovery_state { 
	DSC_LOGIN_COMPLETE,

	DSC_ADISC,

	DSC_DELETE_PEND,

	DSC_LOGIN_AUTH_PEND,

};



enum login_state {	/* FW control Target side */
@@ -2563,6 +2565,22 @@ typedef struct fc_port { 
	u64 tgt_short_link_down_cnt;

	u64 tgt_link_down_time;

	u64 dev_loss_tmo;

	/*

	 * EDIF parameters for encryption.

	 */

	struct {

		uint32_t	enable:1;	/* device is edif enabled/req'd */

		uint32_t	app_stop:2;

		uint32_t	app_started:1;

		uint32_t	secured_login:1;

		uint32_t	app_sess_online:1;

		uint32_t	tx_rekey_cnt;

		uint32_t	rx_rekey_cnt;

		/* delayed rx delete data structure list */

		uint64_t	tx_bytes;

		uint64_t	rx_bytes;

		uint8_t		non_secured_login;

	} edif;

} fc_port_t;



enum {
@@ -2616,6 +2634,7 @@ static const char * const port_dstate_str[] = { 
#define FCF_ASYNC_SENT		BIT_3

#define FCF_CONF_COMP_SUPPORTED BIT_4

#define FCF_ASYNC_ACTIVE	BIT_5

#define FCF_FCSP_DEVICE		BIT_6



/* No loop ID flag. */

#define FC_NO_LOOP_ID		0x1000
@@ -3935,6 +3954,7 @@ struct qla_hw_data { 
		uint32_t	scm_supported_f:1;

				/* Enabled in Driver */

		uint32_t	scm_enabled:1;

		uint32_t	edif_enabled:1;

		uint32_t	max_req_queue_warned:1;

		uint32_t	plogi_template_valid:1;

		uint32_t	port_isolated:1;
@@ -4659,6 +4679,8 @@ struct purex_item { 
	} iocb;

};



#include "qla_edif.h"



#define SCM_FLAG_RDF_REJECT		0x00

#define SCM_FLAG_RDF_COMPLETED		0x01
@@ -4888,6 +4910,8 @@ typedef struct scsi_qla_host { 
	u64 reset_cmd_err_cnt;

	u64 link_down_time;

	u64 short_link_down_cnt;

	struct edif_dbell e_dbell;

	struct pur_core pur_cinfo;

} scsi_qla_host_t;



struct qla27xx_image_status {