> This patch adds support for Fabric Device Management
> Interface as per FC-GS-4 spec. in libfc. Any driver
> making use of libfc can enable fdmi state machine
> for a given lport.
>
> If lport has enabled FDMI support the lport state
> machine will transition into FDMI after completing
> the DNS states and before entering the SCR state.
> The FDMI state transition is such that if there is an
> error, it won't stop the lport state machine from
> transitioning and the it will behave as if there was
> no FDMI support.
>
> The FDMI HBA attributes are registed with the Management
> server via Register HBA (RHBA) command and the port
> attributes are reigstered using the Register Port(RPA)
> command.
>
> Changes in v2:
> - Fix a checkpatch warning
>
> Signed-off-by: Neerav Parikh <neerav.par...@intel.com>
> Tested-by: Ross Brattain <ross.b.bratt...@intel.com>
Looks good, thanks.
Reviewed-by: Yi Zou <yi....@intel.com>
> ---
> drivers/scsi/libfc/fc_lport.c | 227 ++++++++++++++++++++++++++++++-
> include/scsi/fc/fc_ms.h | 213 +++++++++++++++++++++++++++++
> include/scsi/fc_encode.h | 303
> +++++++++++++++++++++++++++++++++++++++++
> include/scsi/libfc.h | 11 +
> 4 files changed, 751 insertions(+), 3 deletions(-)
> create mode 100644 include/scsi/fc/fc_ms.h
>
> diff --git a/drivers/scsi/libfc/fc_lport.c
> b/drivers/scsi/libfc/fc_lport.c
> index 83750eb..9a0b2a9 100644
> --- a/drivers/scsi/libfc/fc_lport.c
> +++ b/drivers/scsi/libfc/fc_lport.c
> @@ -116,6 +116,8 @@ static void fc_lport_enter_ns(struct fc_lport *, enum
> fc_lport_state);
> static void fc_lport_enter_scr(struct fc_lport *);
> static void fc_lport_enter_ready(struct fc_lport *);
> static void fc_lport_enter_logo(struct fc_lport *);
> +static void fc_lport_enter_fdmi(struct fc_lport *lport);
> +static void fc_lport_enter_ms(struct fc_lport *, enum fc_lport_state);
>
> static const char *fc_lport_state_names[] = {
> [LPORT_ST_DISABLED] = "disabled",
> @@ -126,6 +128,11 @@ static const char *fc_lport_state_names[] = {
> [LPORT_ST_RSPN_ID] = "RSPN_ID",
> [LPORT_ST_RFT_ID] = "RFT_ID",
> [LPORT_ST_RFF_ID] = "RFF_ID",
> + [LPORT_ST_FDMI] = "FDMI",
> + [LPORT_ST_RHBA] = "RHBA",
> + [LPORT_ST_RPA] = "RPA",
> + [LPORT_ST_DHBA] = "DHBA",
> + [LPORT_ST_DPRT] = "DPRT",
> [LPORT_ST_SCR] = "SCR",
> [LPORT_ST_READY] = "Ready",
> [LPORT_ST_LOGO] = "LOGO",
> @@ -183,11 +190,14 @@ static void fc_lport_rport_callback(struct fc_lport
> *lport,
> if (lport->state == LPORT_ST_DNS) {
> lport->dns_rdata = rdata;
> fc_lport_enter_ns(lport, LPORT_ST_RNN_ID);
> + } else if (lport->state == LPORT_ST_FDMI) {
> + lport->ms_rdata = rdata;
> + fc_lport_enter_ms(lport, LPORT_ST_DHBA);
> } else {
> FC_LPORT_DBG(lport, "Received an READY event "
> "on port (%6.6x) for the directory "
> "server, but the lport is not "
> - "in the DNS state, it's in the "
> + "in the DNS or FDMI state, it's in the "
> "%d state", rdata->ids.port_id,
> lport->state);
> lport->tt.rport_logoff(rdata);
> @@ -196,7 +206,10 @@ static void fc_lport_rport_callback(struct fc_lport
> *lport,
> case RPORT_EV_LOGO:
> case RPORT_EV_FAILED:
> case RPORT_EV_STOP:
> - lport->dns_rdata = NULL;
> + if (rdata->ids.port_id == FC_FID_DIR_SERV)
> + lport->dns_rdata = NULL;
> + else if (rdata->ids.port_id == FC_FID_MGMT_SERV)
> + lport->ms_rdata = NULL;
> break;
> case RPORT_EV_NONE:
> break;
> @@ -1148,7 +1161,10 @@ static void fc_lport_ns_resp(struct fc_seq *sp,
> struct fc_frame *fp,
> fc_lport_enter_ns(lport, LPORT_ST_RFF_ID);
> break;
> case LPORT_ST_RFF_ID:
> - fc_lport_enter_scr(lport);
> + if (lport->fdmi_enabled)
> + fc_lport_enter_fdmi(lport);
> + else
> + fc_lport_enter_scr(lport);
> break;
> default:
> /* should have already been caught by state checks */
> @@ -1163,6 +1179,85 @@ err:
> }
>
> /**
> + * fc_lport_ms_resp() - Handle response to a management server
> + * exchange
> + * @sp: current sequence in exchange
> + * @fp: response frame
> + * @lp_arg: Fibre Channel host port instance
> + *
> + * Locking Note: This function will be called without the lport lock
> + * held, but it will lock, call an _enter_* function or fc_lport_error()
> + * and then unlock the lport.
> + */
> +static void fc_lport_ms_resp(struct fc_seq *sp, struct fc_frame *fp,
> + void *lp_arg)
> +{
> + struct fc_lport *lport = lp_arg;
> + struct fc_frame_header *fh;
> + struct fc_ct_hdr *ct;
> +
> + FC_LPORT_DBG(lport, "Received a ms %s\n", fc_els_resp_type(fp));
> +
> + if (fp == ERR_PTR(-FC_EX_CLOSED))
> + return;
> +
> + mutex_lock(&lport->lp_mutex);
> +
> + if (lport->state < LPORT_ST_RHBA || lport->state > LPORT_ST_DPRT) {
> + FC_LPORT_DBG(lport, "Received a management server response, "
> + "but in state %s\n", fc_lport_state(lport));
> + if (IS_ERR(fp))
> + goto err;
> + goto out;
> + }
> +
> + if (IS_ERR(fp)) {
> + fc_lport_error(lport, fp);
> + goto err;
> + }
> +
> + fh = fc_frame_header_get(fp);
> + ct = fc_frame_payload_get(fp, sizeof(*ct));
> +
> + if (fh && ct && fh->fh_type == FC_TYPE_CT &&
> + ct->ct_fs_type == FC_FST_MGMT &&
> + ct->ct_fs_subtype == FC_FDMI_SUBTYPE) {
> + FC_LPORT_DBG(lport, "Received a management server response, "
> + "reason=%d explain=%d\n",
> + ct->ct_reason,
> + ct->ct_explan);
> +
> + switch (lport->state) {
> + case LPORT_ST_RHBA:
> + if (ntohs(ct->ct_cmd) == FC_FS_ACC)
> + fc_lport_enter_ms(lport, LPORT_ST_RPA);
> + else /* Error Skip RPA */
> + fc_lport_enter_scr(lport);
> + break;
> + case LPORT_ST_RPA:
> + fc_lport_enter_scr(lport);
> + break;
> + case LPORT_ST_DPRT:
> + fc_lport_enter_ms(lport, LPORT_ST_RHBA);
> + break;
> + case LPORT_ST_DHBA:
> + fc_lport_enter_ms(lport, LPORT_ST_DPRT);
> + break;
> + default:
> + /* should have already been caught by state checks */
> + break;
> + }
> + } else {
> + /* Invalid Frame? */
> + fc_lport_error(lport, fp);
> + }
> +out:
> + fc_frame_free(fp);
> +err:
> + mutex_unlock(&lport->lp_mutex);
> +}
> +
> +/**
> * fc_lport_scr_resp() - Handle response to State Change Register (SCR)
> request
> * @sp: current sequence in SCR exchange
> * @fp: response frame
> @@ -1339,6 +1434,123 @@ err:
> }
>
> /**
> + * fc_lport_enter_ms() - management server commands
> + * @lport: Fibre Channel local port to register
> + *
> + * Locking Note: The lport lock is expected to be held before calling
> + * this routine.
> + */
> +static void fc_lport_enter_ms(struct fc_lport *lport, enum
> fc_lport_state state)
> +{
> + struct fc_frame *fp;
> + enum fc_fdmi_req cmd;
> + int size = sizeof(struct fc_ct_hdr);
> + size_t len;
> + int numattrs;
> +
> + FC_LPORT_DBG(lport, "Entered %s state from %s state\n",
> + fc_lport_state_names[state],
> + fc_lport_state(lport));
> +
> + fc_lport_state_enter(lport, state);
> +
> + switch (state) {
> + case LPORT_ST_RHBA:
> + cmd = FC_FDMI_RHBA;
> + /* Number of HBA Attributes */
> + numattrs = 10;
> + len = sizeof(struct fc_fdmi_rhba);
> + len -= sizeof(struct fc_fdmi_attr_entry);
> + len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
> + len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
> + len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
> + len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
> + len += FC_FDMI_HBA_ATTR_MODEL_LEN;
> + len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
> + len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
> +
> + size += len;
> + break;
> + case LPORT_ST_RPA:
> + cmd = FC_FDMI_RPA;
> + /* Number of Port Attributes */
> + numattrs = 6;
> + len = sizeof(struct fc_fdmi_rpa);
> + len -= sizeof(struct fc_fdmi_attr_entry);
> + len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
> + len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
> + len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
> + len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
> + len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
> + len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
> + len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
> +
> + size += len;
> + break;
> + case LPORT_ST_DPRT:
> + cmd = FC_FDMI_DPRT;
> + len = sizeof(struct fc_fdmi_dprt);
> + size += len;
> + break;
> + case LPORT_ST_DHBA:
> + cmd = FC_FDMI_DHBA;
> + len = sizeof(struct fc_fdmi_dhba);
> + size += len;
> + break;
> + default:
> + fc_lport_error(lport, NULL);
> + return;
> + }
> +
> + FC_LPORT_DBG(lport, "Cmd=0x%x Len %d size %d\n",
> + cmd, (int)len, size);
> + fp = fc_frame_alloc(lport, size);
> + if (!fp) {
> + fc_lport_error(lport, fp);
> + return;
> + }
> +
> + if (!lport->tt.elsct_send(lport, FC_FID_MGMT_SERV, fp, cmd,
> + fc_lport_ms_resp,
> + lport, 3 * lport->r_a_tov))
> + fc_lport_error(lport, fp);
> +}
> +
> +/**
> + * fc_rport_enter_fdmi() - Create a fc_rport for the management server
> + * @lport: The local port requesting a remote port for the management
> server
> + *
> + * Locking Note: The lport lock is expected to be held before calling
> + * this routine.
> + */
> +static void fc_lport_enter_fdmi(struct fc_lport *lport)
> +{
> + struct fc_rport_priv *rdata;
> +
> + FC_LPORT_DBG(lport, "Entered FDMI state from %s state\n",
> + fc_lport_state(lport));
> +
> + fc_lport_state_enter(lport, LPORT_ST_FDMI);
> +
> + mutex_lock(&lport->disc.disc_mutex);
> + rdata = lport->tt.rport_create(lport, FC_FID_MGMT_SERV);
> + mutex_unlock(&lport->disc.disc_mutex);
> + if (!rdata)
> + goto err;
> +
> + rdata->ops = &fc_lport_rport_ops;
> + lport->tt.rport_login(rdata);
> + return;
> +
> +err:
> + fc_lport_error(lport, NULL);
> +}
> +
> +/**
> * fc_lport_timeout() - Handler for the retry_work timer
> * @work: The work struct of the local port
> */
> @@ -1371,6 +1583,15 @@ static void fc_lport_timeout(struct work_struct
> *work)
> case LPORT_ST_RFF_ID:
> fc_lport_enter_ns(lport, lport->state);
> break;
> + case LPORT_ST_FDMI:
> + fc_lport_enter_fdmi(lport);
> + break;
> + case LPORT_ST_RHBA:
> + case LPORT_ST_RPA:
> + case LPORT_ST_DHBA:
> + case LPORT_ST_DPRT:
> + fc_lport_enter_ms(lport, lport->state);
> + break;
> case LPORT_ST_SCR:
> fc_lport_enter_scr(lport);
> break;
> diff --git a/include/scsi/fc/fc_ms.h b/include/scsi/fc/fc_ms.h
> new file mode 100644
> index 0000000..f52b921
> --- /dev/null
> +++ b/include/scsi/fc/fc_ms.h
> @@ -0,0 +1,213 @@
> +/* * Copyright(c) 2011 Intel Corporation. All rights reserved.
> + *
> + * This program is free software; you can redistribute it and/or modify
> it
> + * under the terms and conditions of the GNU General Public License,
> + * version 2, as published by the Free Software Foundation.
> + *
> + * This program is distributed in the hope it will be useful, but
> WITHOUT
> + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
> + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
> for
> + * more details.
> + *
> + * You should have received a copy of the GNU General Public License
> along with
> + * this program; if not, write to the Free Software Foundation, Inc.,
> + * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
> + *
> + * Maintained at www.Open-FCoE.org
> + */
> +
> +#ifndef _FC_MS_H_
> +#define _FC_MS_H_
> +
> +#include <linux/types.h>
> +
> +/*
> + * Fibre Channel Services - Management Service (MS)
> + * From T11.org FC-GS-4 Rev 7.91 February 4, 2004
> + */
> +
> +/*
> + * Fabric Device Management Interface
> + */
> +
> +/*
> + * Common-transport sub-type for FDMI
> + */
> +#define FC_FDMI_SUBTYPE 0x10 /* fs_ct_hdr.ct_fs_subtype */
> +
> +/*
> + * Management server FDMI Requests.
> + */
> +enum fc_fdmi_req {
> + FC_FDMI_GRHL = 0x0100, /* Get Registered HBA List */
> + FC_FDMI_GHAT = 0x0101, /* Get HBA Attributes */
> + FC_FDMI_GRPL = 0x0102, /* Get Registered Port List */
> + FC_FDMI_GPAT = 0x0110, /* Get Port Attributes */
> + FC_FDMI_RHBA = 0x0200, /* Register HBA */
> + FC_FDMI_RHAT = 0x0201, /* Register HBA Attributes */
> + FC_FDMI_RPRT = 0x0210, /* Register Port */
> + FC_FDMI_RPA = 0x0211, /* Register Port Attributes */
> + FC_FDMI_DHBA = 0x0300, /* Deregister HBA */
> + FC_FDMI_DHAT = 0x0301, /* Deregister HBA Attributes */
> + FC_FDMI_DPRT = 0x0310, /* Deregister Port */
> + FC_FDMI_DPA = 0x0311, /* Deregister Port Attributes */
> +};
> +
> +/*
> + * HBA Attribute Entry Type
> + */
> +enum fc_fdmi_hba_attr_type {
> + FC_FDMI_HBA_ATTR_NODENAME = 0x0001,
> + FC_FDMI_HBA_ATTR_MANUFACTURER = 0x0002,
> + FC_FDMI_HBA_ATTR_SERIALNUMBER = 0x0003,
> + FC_FDMI_HBA_ATTR_MODEL = 0x0004,
> + FC_FDMI_HBA_ATTR_MODELDESCRIPTION = 0x0005,
> + FC_FDMI_HBA_ATTR_HARDWAREVERSION = 0x0006,
> + FC_FDMI_HBA_ATTR_DRIVERVERSION = 0x0007,
> + FC_FDMI_HBA_ATTR_OPTIONROMVERSION = 0x0008,
> + FC_FDMI_HBA_ATTR_FIRMWAREVERSION = 0x0009,
> + FC_FDMI_HBA_ATTR_OSNAMEVERSION = 0x000A,
> + FC_FDMI_HBA_ATTR_MAXCTPAYLOAD = 0x000B,
> +};
> +
> +/*
> + * HBA Attribute Length
> + */
> +#define FC_FDMI_HBA_ATTR_NODENAME_LEN 8
> +#define FC_FDMI_HBA_ATTR_MANUFACTURER_LEN 64
> +#define FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN 64
> +#define FC_FDMI_HBA_ATTR_MODEL_LEN 256
> +#define FC_FDMI_HBA_ATTR_MODELDESCR_LEN 256
> +#define FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN 256
> +#define FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN 256
> +#define FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN 256
> +#define FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN 256
> +#define FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN 256
> +#define FC_FDMI_HBA_ATTR_MAXCTPAYLOAD_LEN 4
> +
> +/*
> + * Port Attribute Type
> + */
> +enum fc_fdmi_port_attr_type {
> + FC_FDMI_PORT_ATTR_FC4TYPES = 0x0001,
> + FC_FDMI_PORT_ATTR_SUPPORTEDSPEED = 0x0002,
> + FC_FDMI_PORT_ATTR_CURRENTPORTSPEED = 0x0003,
> + FC_FDMI_PORT_ATTR_MAXFRAMESIZE = 0x0004,
> + FC_FDMI_PORT_ATTR_OSDEVICENAME = 0x0005,
> + FC_FDMI_PORT_ATTR_HOSTNAME = 0x0006,
> +};
> +
> +/*
> + * Port Attribute Length
> + */
> +#define FC_FDMI_PORT_ATTR_FC4TYPES_LEN 32
> +#define FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN 4
> +#define FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN 4
> +#define FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN 4
> +#define FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN 256
> +#define FC_FDMI_PORT_ATTR_HOSTNAME_LEN 256
> +
> +/*
> + * HBA Attribute ID
> + */
> +struct fc_fdmi_hba_identifier {
> + __be64 id;
> +};
> +
> +/*
> + * Port Name
> + */
> +struct fc_fdmi_port_name {
> + __be64 portname;
> +};
> +
> +/*
> + * Attribute Entry Block for HBA/Port Attributes
> + */
> +#define FC_FDMI_ATTR_ENTRY_HEADER_LEN 4
> +struct fc_fdmi_attr_entry {
> + __be16 type;
> + __be16 len;
> + __u8 value[1];
> +} __attribute__((__packed__));
> +
> +/*
> + * Common for HBA/Port Attributes
> + */
> +struct fs_fdmi_attrs {
> + __be32 numattrs;
> + struct fc_fdmi_attr_entry attr[1];
> +} __attribute__((__packed__));
> +
> +/*
> + * Registered Port List
> + */
> +struct fc_fdmi_rpl {
> + __be32 numport;
> + struct fc_fdmi_port_name port[1];
> +} __attribute__((__packed__));
> +
> +/*
> + * Register HBA (RHBA)
> + */
> +struct fc_fdmi_rhba {
> + struct fc_fdmi_hba_identifier hbaid;
> + struct fc_fdmi_rpl port;
> + struct fs_fdmi_attrs hba_attrs;
> +} __attribute__((__packed__));
> +
> +/*
> + * Register HBA Attributes (RHAT)
> + */
> +struct fc_fdmi_rhat {
> + struct fc_fdmi_hba_identifier hbaid;
> + struct fs_fdmi_attrs hba_attrs;
> +} __attribute__((__packed__));
> +
> +/*
> + * Register Port (RPRT)
> + */
> +struct fc_fdmi_rprt {
> + struct fc_fdmi_hba_identifier hbaid;
> + struct fc_fdmi_port_name port;
> + struct fs_fdmi_attrs hba_attrs;
> +} __attribute__((__packed__));
> +
> +/*
> + * Register Port Attributes (RPA)
> + */
> +struct fc_fdmi_rpa {
> + struct fc_fdmi_port_name port;
> + struct fs_fdmi_attrs hba_attrs;
> +} __attribute__((__packed__));
> +
> +/*
> + * Deregister Port (DPRT)
> + */
> +struct fc_fdmi_dprt {
> + struct fc_fdmi_port_name port;
> +} __attribute__((__packed__));
> +
> +/*
> + * Deregister Port Attributes (DPA)
> + */
> +struct fc_fdmi_dpa {
> + struct fc_fdmi_port_name port;
> + struct fs_fdmi_attrs hba_attrs;
> +} __attribute__((__packed__));
> +
> +/*
> + * Deregister HBA Attributes (DHAT)
> + */
> +struct fc_fdmi_dhat {
> + struct fc_fdmi_hba_identifier hbaid;
> +} __attribute__((__packed__));
> +
> +/*
> + * Deregister HBA (DHBA)
> + */
> +struct fc_fdmi_dhba {
> + struct fc_fdmi_hba_identifier hbaid;
> +} __attribute__((__packed__));
> +
> +#endif /* _FC_MS_H_ */
> diff --git a/include/scsi/fc_encode.h b/include/scsi/fc_encode.h
> index 73bc433..35fd474 100644
> --- a/include/scsi/fc_encode.h
> +++ b/include/scsi/fc_encode.h
> @@ -20,6 +20,7 @@
> #ifndef _FC_ENCODE_H_
> #define _FC_ENCODE_H_
> #include <asm/unaligned.h>
> +#include <linux/utsname.h>
>
> /*
> * F_CTL values for simple requests and responses.
> @@ -43,6 +44,10 @@ struct fc_ct_req {
> struct fc_ns_fid fid;
> struct fc_ns_rsnn snn;
> struct fc_ns_rspn spn;
> + struct fc_fdmi_rhba rhba;
> + struct fc_fdmi_rpa rpa;
> + struct fc_fdmi_dprt dprt;
> + struct fc_fdmi_dhba dhba;
> } payload;
> };
>
> @@ -199,6 +204,300 @@ static inline int fc_ct_ns_fill(struct fc_lport
> *lport,
> }
>
> /**
> + * fc_ct_ms_fill() - Fill in a mgmt service request frame
> + * @lport: local port.
> + * @fc_id: FC_ID of non-destination rport for GPN_ID and similar
> inquiries.
> + * @fp: frame to contain payload.
> + * @op: CT opcode.
> + * @r_ctl: pointer to FC header R_CTL.
> + * @fh_type: pointer to FC-4 type.
> + */
> +static inline int fc_ct_ms_fill(struct fc_lport *lport,
> + u32 fc_id, struct fc_frame *fp,
> + unsigned int op, enum fc_rctl *r_ctl,
> + enum fc_fh_type *fh_type)
> +{
> + struct fc_ct_req *ct;
> + size_t len;
> + struct fc_fdmi_attr_entry *entry;
> + struct fs_fdmi_attrs *hba_attrs;
> + int numattrs = 0;
> +
> + switch (op) {
> + case FC_FDMI_RHBA:
> + numattrs = 10;
> + len = sizeof(struct fc_fdmi_rhba);
> + len -= sizeof(struct fc_fdmi_attr_entry);
> + len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
> + len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
> + len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
> + len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
> + len += FC_FDMI_HBA_ATTR_MODEL_LEN;
> + len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
> + len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
> + len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
> + ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
> + FC_FDMI_SUBTYPE);
> +
> + /* HBA Identifier */
> + put_unaligned_be64(lport->wwpn, &ct->payload.rhba.hbaid.id);
> + /* Number of Ports - always 1 */
> + put_unaligned_be32(1, &ct->payload.rhba.port.numport);
> + /* Port Name */
> + put_unaligned_be64(lport->wwpn,
> + &ct->payload.rhba.port.port[0].portname);
> +
> + /* HBA Attributes */
> + put_unaligned_be32(numattrs,
> + &ct->payload.rhba.hba_attrs.numattrs);
> + hba_attrs = &ct->payload.rhba.hba_attrs;
> + entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr;
> + /* NodeName*/
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_NODENAME_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_NODENAME,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + put_unaligned_be64(lport->wwnn,
> + (__be64 *)&entry->value[0]);
> +
> + /* Manufacturer */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_NODENAME_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_MANUFACTURER_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_MANUFACTURER,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_manufacturer(lport->host),
> + FC_FDMI_HBA_ATTR_MANUFACTURER_LEN);
> +
> + /* SerialNumber */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_MANUFACTURER_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_SERIALNUMBER,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_serial_number(lport->host),
> + FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN);
> +
> + /* Model */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_SERIALNUMBER_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_MODEL_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_MODEL,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_model(lport->host),
> + FC_FDMI_HBA_ATTR_MODEL_LEN);
> +
> + /* Model Description */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_MODEL_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_MODELDESCR_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_MODELDESCRIPTION,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_model_description(lport->host),
> + FC_FDMI_HBA_ATTR_MODELDESCR_LEN);
> +
> + /* Hardware Version */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_MODELDESCR_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_HARDWAREVERSION,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_hardware_version(lport->host),
> + FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN);
> +
> + /* Driver Version */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_HARDWAREVERSION_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_DRIVERVERSION,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_driver_version(lport->host),
> + FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN);
> +
> + /* OptionROM Version */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_DRIVERVERSION_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_OPTIONROMVERSION,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_optionrom_version(lport->host),
> + FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
> +
> + /* Firmware Version */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_OPTIONROMVERSION_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_FIRMWAREVERSION,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + strncpy((char *)&entry->value,
> + fc_host_firmware_version(lport->host),
> + FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN);
> +
> + /* OS Name and Version */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_HBA_ATTR_FIRMWAREVERSION_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN;
> + put_unaligned_be16(FC_FDMI_HBA_ATTR_OSNAMEVERSION,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + snprintf((char *)&entry->value,
> + FC_FDMI_HBA_ATTR_OSNAMEVERSION_LEN,
> + "%s v%s",
> + init_utsname()->sysname,
> + init_utsname()->release);
> + break;
> + case FC_FDMI_RPA:
> + numattrs = 6;
> + len = sizeof(struct fc_fdmi_rpa);
> + len -= sizeof(struct fc_fdmi_attr_entry);
> + len += (numattrs * FC_FDMI_ATTR_ENTRY_HEADER_LEN);
> + len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
> + len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
> + len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
> + len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
> + len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
> + len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
> + ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
> + FC_FDMI_SUBTYPE);
> +
> + /* Port Name */
> + put_unaligned_be64(lport->wwpn,
> + &ct->payload.rpa.port.portname);
> +
> + /* Port Attributes */
> + put_unaligned_be32(numattrs,
> + &ct->payload.rpa.hba_attrs.numattrs);
> +
> + hba_attrs = &ct->payload.rpa.hba_attrs;
> + entry = (struct fc_fdmi_attr_entry *)hba_attrs->attr;
> +
> + /* FC4 types */
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_PORT_ATTR_FC4TYPES_LEN;
> + put_unaligned_be16(FC_FDMI_PORT_ATTR_FC4TYPES,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + memcpy(&entry->value, fc_host_supported_fc4s(lport->host),
> + FC_FDMI_PORT_ATTR_FC4TYPES_LEN);
> +
> + /* Supported Speed */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_PORT_ATTR_FC4TYPES_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN;
> + put_unaligned_be16(FC_FDMI_PORT_ATTR_SUPPORTEDSPEED,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> +
> + put_unaligned_be32(fc_host_supported_speeds(lport->host),
> + &entry->value);
> +
> + /* Current Port Speed */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_PORT_ATTR_SUPPORTEDSPEED_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN;
> + put_unaligned_be16(FC_FDMI_PORT_ATTR_CURRENTPORTSPEED,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + put_unaligned_be32(lport->link_speed,
> + &entry->value);
> +
> + /* Max Frame Size */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_PORT_ATTR_CURRENTPORTSPEED_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN;
> + put_unaligned_be16(FC_FDMI_PORT_ATTR_MAXFRAMESIZE,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + put_unaligned_be32(fc_host_maxframe_size(lport->host),
> + &entry->value);
> +
> + /* OS Device Name */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_PORT_ATTR_MAXFRAMESIZE_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN;
> + put_unaligned_be16(FC_FDMI_PORT_ATTR_OSDEVICENAME,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + /* Use the sysfs device name */
> + strncpy((char *)&entry->value,
> + dev_name(&lport->host->shost_gendev),
> + strnlen(dev_name(&lport->host->shost_gendev),
> + FC_FDMI_PORT_ATTR_HOSTNAME_LEN));
> +
> + /* Host Name */
> + entry = (struct fc_fdmi_attr_entry *)((char *)entry->value +
> + FC_FDMI_PORT_ATTR_OSDEVICENAME_LEN);
> + len = FC_FDMI_ATTR_ENTRY_HEADER_LEN;
> + len += FC_FDMI_PORT_ATTR_HOSTNAME_LEN;
> + put_unaligned_be16(FC_FDMI_PORT_ATTR_HOSTNAME,
> + &entry->type);
> + put_unaligned_be16(len, &entry->len);
> + if (strlen(fc_host_system_hostname(lport->host)))
> + strncpy((char *)&entry->value,
> + fc_host_system_hostname(lport->host),
> + strnlen(fc_host_system_hostname(lport->host),
> + FC_FDMI_PORT_ATTR_HOSTNAME_LEN));
> + else
> + strncpy((char *)&entry->value,
> + init_utsname()->nodename,
> + FC_FDMI_PORT_ATTR_HOSTNAME_LEN);
> + break;
> + case FC_FDMI_DPRT:
> + len = sizeof(struct fc_fdmi_dprt);
> + ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
> + FC_FDMI_SUBTYPE);
> + /* Port Name */
> + put_unaligned_be64(lport->wwpn,
> + &ct->payload.dprt.port.portname);
> + break;
> + case FC_FDMI_DHBA:
> + len = sizeof(struct fc_fdmi_dhba);
> + ct = fc_ct_hdr_fill(fp, op, len, FC_FST_MGMT,
> + FC_FDMI_SUBTYPE);
> + /* HBA Identifier */
> + put_unaligned_be64(lport->wwpn, &ct->payload.dhba.hbaid.id);
> + break;
> + default:
> + return -EINVAL;
> + }
> + *r_ctl = FC_RCTL_DD_UNSOL_CTL;
> + *fh_type = FC_TYPE_CT;
> + return 0;
> +}
> +
> +/**
> * fc_ct_fill() - Fill in a common transport service request frame
> * @lport: local port.
> * @fc_id: FC_ID of non-destination rport for GPN_ID and similar
> inquiries.
> @@ -215,6 +514,10 @@ static inline int fc_ct_fill(struct fc_lport *lport,
> int rc = -EINVAL;
>
> switch (fc_id) {
> + case FC_FID_MGMT_SERV:
> + rc = fc_ct_ms_fill(lport, fc_id, fp, op, r_ctl, fh_type);
> + *did = FC_FID_MGMT_SERV;
> + break;
> case FC_FID_DIR_SERV:
> default:
> rc = fc_ct_ns_fill(lport, fc_id, fp, op, r_ctl, fh_type);
> diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
> index 6a3922f..8f9dfba 100644
> --- a/include/scsi/libfc.h
> +++ b/include/scsi/libfc.h
> @@ -30,6 +30,7 @@
>
> #include <scsi/fc/fc_fcp.h>
> #include <scsi/fc/fc_ns.h>
> +#include <scsi/fc/fc_ms.h>
> #include <scsi/fc/fc_els.h>
> #include <scsi/fc/fc_gs.h>
>
> @@ -52,6 +53,8 @@
> * @LPORT_ST_RPN_ID: Register port name by ID (RPN_ID) sent
> * @LPORT_ST_RFT_ID: Register Fibre Channel types by ID (RFT_ID) sent
> * @LPORT_ST_RFF_ID: Register FC-4 Features by ID (RFF_ID) sent
> + * @LPORT_ST_FDMI: Waiting for mgmt server rport to become ready
> + * @LPORT_ST_RHBA:
> * @LPORT_ST_SCR: State Change Register (SCR) sent
> * @LPORT_ST_READY: Ready for use
> * @LPORT_ST_LOGO: Local port logout (LOGO) sent
> @@ -66,6 +69,11 @@ enum fc_lport_state {
> LPORT_ST_RSPN_ID,
> LPORT_ST_RFT_ID,
> LPORT_ST_RFF_ID,
> + LPORT_ST_FDMI,
> + LPORT_ST_RHBA,
> + LPORT_ST_RPA,
> + LPORT_ST_DHBA,
> + LPORT_ST_DPRT,
> LPORT_ST_SCR,
> LPORT_ST_READY,
> LPORT_ST_LOGO,
> @@ -797,6 +805,7 @@ enum fc_lport_event {
> * @host: The SCSI host associated with a local port
> * @ema_list: Exchange manager anchor list
> * @dns_rdata: The directory server remote port
> + * @ms_rdata: The management server remote port
> * @ptp_rdata: Point to point remote port
> * @scsi_priv: FCP layer internal data
> * @disc: Discovery context
> @@ -842,6 +851,7 @@ struct fc_lport {
> struct Scsi_Host *host;
> struct list_head ema_list;
> struct fc_rport_priv *dns_rdata;
> + struct fc_rport_priv *ms_rdata;
> struct fc_rport_priv *ptp_rdata;
> void *scsi_priv;
> struct fc_disc disc;
> @@ -877,6 +887,7 @@ struct fc_lport {
> u32 does_npiv:1;
> u32 npiv_enabled:1;
> u32 point_to_multipoint:1;
> + u32 fdmi_enabled:1;
> u32 mfs;
> u8 max_retry_count;
> u8 max_rport_retry_count;
>
> _______________________________________________
> devel mailing list
> devel@open-fcoe.org
> https://lists.open-fcoe.org/mailman/listinfo/devel
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