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[SCSI] qla2xxx: Use GFF_ID to check FCP-SCSI FC4 type before logging into Nx_Ports 

The default method that qla2xxx uses is the GID_PT nameserver command to
get a list of Nx_Ports. This patch adds a GFF_ID call for each port
returned by GID_PT to get the FC4 type. If the FC4 type is not FCP SCSI
then the qla2xxx driver will not record that port in it's port database.
For switches that do not support the GFF_ID command, the behavior will be
for qla2xxx to store that port anyways.

Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
This commit is contained in:
Chad Dupuis 2010-07-23 15:28:25 +05:00 committed by James Bottomley
parent 2f0f3f4f06
commit e8c72ba51a
4 changed files with 103 additions and 1 deletions
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20
drivers/scsi/qla2xxx/qla_def.h
View File

@ -1652,8 +1652,14 @@ typedef struct {
uint8_t port_name[WWN_SIZE];
uint8_t fabric_port_name[WWN_SIZE];
uint16_t fp_speed;
uint8_t fc4_type;
} sw_info_t;
/* FCP-4 types */
#define FC4_TYPE_FCP_SCSI 0x08
#define FC4_TYPE_OTHER 0x0
#define FC4_TYPE_UNKNOWN 0xff
/*
* Fibre channel port type.
*/
@ -1697,6 +1703,7 @@ typedef struct fc_port {
u32 supported_classes;
uint16_t vp_idx;
uint8_t fc4_type;
} fc_port_t;
/*
@ -1779,6 +1786,9 @@ typedef struct fc_port {
#define GPSC_REQ_SIZE (16 + 8)
#define GPSC_RSP_SIZE (16 + 2 + 2)
#define GFF_ID_CMD 0x011F
#define GFF_ID_REQ_SIZE (16 + 4)
#define GFF_ID_RSP_SIZE (16 + 128)
/*
* HBA attribute types.
@ -1980,6 +1990,11 @@ struct ct_sns_req {
struct {
uint8_t port_name[8];
} gpsc;
struct {
uint8_t reserved;
uint8_t port_name[3];
} gff_id;
} req;
};
@ -2052,6 +2067,11 @@ struct ct_sns_rsp {
uint16_t speeds;
uint16_t speed;
} gpsc;
#define GFF_FCP_SCSI_OFFSET 7
struct {
uint8_t fc4_features[128];
} gff_id;
} rsp;
};

1
drivers/scsi/qla2xxx/qla_gbl.h
View File

@ -441,6 +441,7 @@ extern int qla2x00_ga_nxt(scsi_qla_host_t *, fc_port_t *);
extern int qla2x00_gid_pt(scsi_qla_host_t *, sw_info_t *);
extern int qla2x00_gpn_id(scsi_qla_host_t *, sw_info_t *);
extern int qla2x00_gnn_id(scsi_qla_host_t *, sw_info_t *);
extern void qla2x00_gff_id(scsi_qla_host_t *, sw_info_t *);
extern int qla2x00_rft_id(scsi_qla_host_t *);
extern int qla2x00_rff_id(scsi_qla_host_t *);
extern int qla2x00_rnn_id(scsi_qla_host_t *);

72
drivers/scsi/qla2xxx/qla_gs.c
View File

@ -1913,3 +1913,75 @@ qla2x00_gpsc(scsi_qla_host_t *vha, sw_info_t *list)
return (rval);
}
/**
* qla2x00_gff_id() - SNS Get FC-4 Features (GFF_ID) query.
*
* @ha: HA context
* @list: switch info entries to populate
*
*/
void
qla2x00_gff_id(scsi_qla_host_t *vha, sw_info_t *list)
{
int rval;
uint16_t i;
ms_iocb_entry_t *ms_pkt;
struct ct_sns_req *ct_req;
struct ct_sns_rsp *ct_rsp;
struct qla_hw_data *ha = vha->hw;
uint8_t fcp_scsi_features = 0;
for (i = 0; i < MAX_FIBRE_DEVICES; i++) {
/* Set default FC4 Type as UNKNOWN so the default is to
* Process this port */
list[i].fc4_type = FC4_TYPE_UNKNOWN;
/* Do not attempt GFF_ID if we are not FWI_2 capable */
if (!IS_FWI2_CAPABLE(ha))
continue;
/* Prepare common MS IOCB */
ms_pkt = ha->isp_ops->prep_ms_iocb(vha, GFF_ID_REQ_SIZE,
GFF_ID_RSP_SIZE);
/* Prepare CT request */
ct_req = qla2x00_prep_ct_req(&ha->ct_sns->p.req, GFF_ID_CMD,
GFF_ID_RSP_SIZE);
ct_rsp = &ha->ct_sns->p.rsp;
/* Prepare CT arguments -- port_id */
ct_req->req.port_id.port_id[0] = list[i].d_id.b.domain;
ct_req->req.port_id.port_id[1] = list[i].d_id.b.area;
ct_req->req.port_id.port_id[2] = list[i].d_id.b.al_pa;
/* Execute MS IOCB */
rval = qla2x00_issue_iocb(vha, ha->ms_iocb, ha->ms_iocb_dma,
sizeof(ms_iocb_entry_t));
if (rval != QLA_SUCCESS) {
DEBUG2_3(printk(KERN_INFO
"scsi(%ld): GFF_ID issue IOCB failed "
"(%d).\n", vha->host_no, rval));
} else if (qla2x00_chk_ms_status(vha, ms_pkt, ct_rsp,
"GPN_ID") != QLA_SUCCESS) {
DEBUG2_3(printk(KERN_INFO
"scsi(%ld): GFF_ID IOCB status had a "
"failure status code\n", vha->host_no));
} else {
fcp_scsi_features =
ct_rsp->rsp.gff_id.fc4_features[GFF_FCP_SCSI_OFFSET];
fcp_scsi_features &= 0x0f;
if (fcp_scsi_features)
list[i].fc4_type = FC4_TYPE_FCP_SCSI;
else
list[i].fc4_type = FC4_TYPE_OTHER;
}
/* Last device exit. */
if (list[i].d_id.b.rsvd_1 != 0)
break;
}
}

11
drivers/scsi/qla2xxx/qla_init.c
View File

@ -3078,7 +3078,6 @@ qla2x00_configure_fabric(scsi_qla_host_t *vha)
return (rval);
}
/*
* qla2x00_find_all_fabric_devs
*
@ -3131,6 +3130,10 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
qla2x00_gfpn_id(vha, swl) == QLA_SUCCESS) {
qla2x00_gpsc(vha, swl);
}
/* If other queries succeeded probe for FC-4 type */
if (swl)
qla2x00_gff_id(vha, swl);
}
swl_idx = 0;
@ -3172,6 +3175,7 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
memcpy(new_fcport->fabric_port_name,
swl[swl_idx].fabric_port_name, WWN_SIZE);
new_fcport->fp_speed = swl[swl_idx].fp_speed;
new_fcport->fc4_type = swl[swl_idx].fc4_type;
if (swl[swl_idx].d_id.b.rsvd_1 != 0) {
last_dev = 1;
@ -3233,6 +3237,11 @@ qla2x00_find_all_fabric_devs(scsi_qla_host_t *vha,
if ((new_fcport->d_id.b.domain & 0xf0) == 0xf0)
continue;
/* Bypass ports whose FCP-4 type is not FCP_SCSI */
if (new_fcport->fc4_type != FC4_TYPE_FCP_SCSI &&
new_fcport->fc4_type != FC4_TYPE_UNKNOWN)
continue;
/* Locate matching device in database. */
found = 0;
list_for_each_entry(fcport, &vha->vp_fcports, list) {