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scsi: fcoe: provide translation table between Ethernet and FC port speeds 

Provide a translation table between Ethernet and FC port speeds so odd
speeds (from a Ethernet POV) like 8 Gbit are correctly mapped to sysfs
and open-fcoe's fcoeadm.

Before:
    Description:      BCM57840 NetXtreme II 10/20-Gigabit Ethernet
    Revision:         11
    Manufacturer:     Broadcom Corporation
    Serial Number:    6CC2173EA1D0

    Driver:           bnx2x 1.712.30-0
    Number of Ports:  1

        Symbolic Name:     bnx2fc (QLogic BCM57840) v2.10.3 over eth2
        OS Device Name:    host1
        Node Name:         0x20006cc2173ea1d1
        Port Name:         0x10006cc2173ea1d1
        FabricName:        0x100000c0dd0ce717
        Speed:             unknown
        Supported Speed:   1 Gbit, 10 Gbit
        MaxFrameSize:      2048 bytes
        FC-ID (Port ID):   0x660702
        State:             Online

After:
    Description:      BCM57840 NetXtreme II 10/20-Gigabit Ethernet
    Revision:         11
    Manufacturer:     Broadcom Corporation
    Serial Number:    6CC2173EA1D0

    Driver:           bnx2x 1.712.30-0
    Number of Ports:  1

        Symbolic Name:     bnx2fc (QLogic BCM57840) v2.10.3 over eth2
        OS Device Name:    host1
        Node Name:         0x20006cc2173ea1d1
        Port Name:         0x10006cc2173ea1d1
        FabricName:        0x100000c0dd0ce717
        Speed:             8 Gbit
        Supported Speed:   1 Gbit, 10 Gbit
        MaxFrameSize:      2048 bytes
        FC-ID (Port ID):   0x660701
        State:             Online

Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Hannes Reinicke <hare@suse.de>
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Johannes Thumshirn 2016-08-19 15:33:37 +02:00 committed by Martin K. Petersen
parent 9442c9b0ed
commit 0b924e5505
1 changed files with 36 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

53
drivers/scsi/fcoe/fcoe_transport.c
View File

@ -83,6 +83,41 @@ static struct notifier_block libfcoe_notifier = {
.notifier_call = libfcoe_device_notification,
};
static const struct {
u32 fc_port_speed;
#define SPEED_2000 2000
#define SPEED_4000 4000
#define SPEED_8000 8000
#define SPEED_16000 16000
#define SPEED_32000 32000
u32 eth_port_speed;
} fcoe_port_speed_mapping[] = {
{ FC_PORTSPEED_1GBIT, SPEED_1000 },
{ FC_PORTSPEED_2GBIT, SPEED_2000 },
{ FC_PORTSPEED_4GBIT, SPEED_4000 },
{ FC_PORTSPEED_8GBIT, SPEED_8000 },
{ FC_PORTSPEED_10GBIT, SPEED_10000 },
{ FC_PORTSPEED_16GBIT, SPEED_16000 },
{ FC_PORTSPEED_20GBIT, SPEED_20000 },
{ FC_PORTSPEED_25GBIT, SPEED_25000 },
{ FC_PORTSPEED_32GBIT, SPEED_32000 },
{ FC_PORTSPEED_40GBIT, SPEED_40000 },
{ FC_PORTSPEED_50GBIT, SPEED_50000 },
{ FC_PORTSPEED_100GBIT, SPEED_100000 },
};
static inline u32 eth2fc_speed(u32 eth_port_speed)
{
int i;
for (i = 0; i <= ARRAY_SIZE(fcoe_port_speed_mapping); i++) {
if (fcoe_port_speed_mapping[i].eth_port_speed == eth_port_speed)
return fcoe_port_speed_mapping[i].fc_port_speed;
}
return FC_PORTSPEED_UNKNOWN;
}
/**
* fcoe_link_speed_update() - Update the supported and actual link speeds
* @lport: The local port to update speeds for
@ -126,23 +161,7 @@ int fcoe_link_speed_update(struct fc_lport *lport)
SUPPORTED_40000baseLR4_Full))
lport->link_supported_speeds |= FC_PORTSPEED_40GBIT;
switch (ecmd.base.speed) {
case SPEED_1000:
lport->link_speed = FC_PORTSPEED_1GBIT;
break;
case SPEED_10000:
lport->link_speed = FC_PORTSPEED_10GBIT;
break;
case SPEED_20000:
lport->link_speed = FC_PORTSPEED_20GBIT;
break;
case SPEED_40000:
lport->link_speed = FC_PORTSPEED_40GBIT;
break;
default:
lport->link_speed = FC_PORTSPEED_UNKNOWN;
break;
}
lport->link_speed = eth2fc_speed(ecmd.base.speed);
return 0;
}
return -1;