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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-28 16:44:18 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-28 16:44:18 -0700 |
commit | ec7ae517537ae5c7b0b2cd7f562dfa3e7a05b954 (patch) | |
tree | e6b0c64a51a7c0aa0efd09d4f7a80872e3b1657a /drivers/scsi/fcoe/fcoe_transport.c | |
parent | 97d2eb13a019ec09cc1a7ea2d3705c0b117b3c0d (diff) | |
parent | 590134fa78fbdbe5fea78c7ae0b2c3364bc9572f (diff) | |
download | linux-stable-ec7ae517537ae5c7b0b2cd7f562dfa3e7a05b954.tar.gz linux-stable-ec7ae517537ae5c7b0b2cd7f562dfa3e7a05b954.tar.bz2 linux-stable-ec7ae517537ae5c7b0b2cd7f562dfa3e7a05b954.zip |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (204 commits)
[SCSI] qla4xxx: export address/port of connection (fix udev disk names)
[SCSI] ipr: Fix BUG on adapter dump timeout
[SCSI] megaraid_sas: Fix instance access in megasas_reset_timer
[SCSI] hpsa: change confusing message to be more clear
[SCSI] iscsi class: fix vlan configuration
[SCSI] qla4xxx: fix data alignment and use nl helpers
[SCSI] iscsi class: fix link local mispelling
[SCSI] iscsi class: Replace iscsi_get_next_target_id with IDA
[SCSI] aacraid: use lower snprintf() limit
[SCSI] lpfc 8.3.27: Change driver version to 8.3.27
[SCSI] lpfc 8.3.27: T10 additions for SLI4
[SCSI] lpfc 8.3.27: Fix queue allocation failure recovery
[SCSI] lpfc 8.3.27: Change algorithm for getting physical port name
[SCSI] lpfc 8.3.27: Changed worst case mailbox timeout
[SCSI] lpfc 8.3.27: Miscellanous logic and interface fixes
[SCSI] megaraid_sas: Changelog and version update
[SCSI] megaraid_sas: Add driver workaround for PERC5/1068 kdump kernel panic
[SCSI] megaraid_sas: Add multiple MSI-X vector/multiple reply queue support
[SCSI] megaraid_sas: Add support for MegaRAID 9360/9380 12GB/s controllers
[SCSI] megaraid_sas: Clear FUSION_IN_RESET before enabling interrupts
...
Diffstat (limited to 'drivers/scsi/fcoe/fcoe_transport.c')
-rw-r--r-- | drivers/scsi/fcoe/fcoe_transport.c | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/drivers/scsi/fcoe/fcoe_transport.c b/drivers/scsi/fcoe/fcoe_transport.c index dac8e39a5188..bd97b2273f20 100644 --- a/drivers/scsi/fcoe/fcoe_transport.c +++ b/drivers/scsi/fcoe/fcoe_transport.c @@ -83,6 +83,107 @@ static struct notifier_block libfcoe_notifier = { .notifier_call = libfcoe_device_notification, }; +void __fcoe_get_lesb(struct fc_lport *lport, + struct fc_els_lesb *fc_lesb, + struct net_device *netdev) +{ + unsigned int cpu; + u32 lfc, vlfc, mdac; + struct fcoe_dev_stats *devst; + struct fcoe_fc_els_lesb *lesb; + struct rtnl_link_stats64 temp; + + lfc = 0; + vlfc = 0; + mdac = 0; + lesb = (struct fcoe_fc_els_lesb *)fc_lesb; + memset(lesb, 0, sizeof(*lesb)); + for_each_possible_cpu(cpu) { + devst = per_cpu_ptr(lport->dev_stats, cpu); + lfc += devst->LinkFailureCount; + vlfc += devst->VLinkFailureCount; + mdac += devst->MissDiscAdvCount; + } + lesb->lesb_link_fail = htonl(lfc); + lesb->lesb_vlink_fail = htonl(vlfc); + lesb->lesb_miss_fka = htonl(mdac); + lesb->lesb_fcs_error = + htonl(dev_get_stats(netdev, &temp)->rx_crc_errors); +} +EXPORT_SYMBOL_GPL(__fcoe_get_lesb); + +void fcoe_wwn_to_str(u64 wwn, char *buf, int len) +{ + u8 wwpn[8]; + + u64_to_wwn(wwn, wwpn); + snprintf(buf, len, "%02x%02x%02x%02x%02x%02x%02x%02x", + wwpn[0], wwpn[1], wwpn[2], wwpn[3], + wwpn[4], wwpn[5], wwpn[6], wwpn[7]); +} +EXPORT_SYMBOL_GPL(fcoe_wwn_to_str); + +/** + * fcoe_validate_vport_create() - Validate a vport before creating it + * @vport: NPIV port to be created + * + * This routine is meant to add validation for a vport before creating it + * via fcoe_vport_create(). + * Current validations are: + * - WWPN supplied is unique for given lport + */ +int fcoe_validate_vport_create(struct fc_vport *vport) +{ + struct Scsi_Host *shost = vport_to_shost(vport); + struct fc_lport *n_port = shost_priv(shost); + struct fc_lport *vn_port; + int rc = 0; + char buf[32]; + + mutex_lock(&n_port->lp_mutex); + + fcoe_wwn_to_str(vport->port_name, buf, sizeof(buf)); + /* Check if the wwpn is not same as that of the lport */ + if (!memcmp(&n_port->wwpn, &vport->port_name, sizeof(u64))) { + LIBFCOE_TRANSPORT_DBG("vport WWPN 0x%s is same as that of the " + "base port WWPN\n", buf); + rc = -EINVAL; + goto out; + } + + /* Check if there is any existing vport with same wwpn */ + list_for_each_entry(vn_port, &n_port->vports, list) { + if (!memcmp(&vn_port->wwpn, &vport->port_name, sizeof(u64))) { + LIBFCOE_TRANSPORT_DBG("vport with given WWPN 0x%s " + "already exists\n", buf); + rc = -EINVAL; + break; + } + } +out: + mutex_unlock(&n_port->lp_mutex); + return rc; +} +EXPORT_SYMBOL_GPL(fcoe_validate_vport_create); + +/** + * fcoe_get_wwn() - Get the world wide name from LLD if it supports it + * @netdev: the associated net device + * @wwn: the output WWN + * @type: the type of WWN (WWPN or WWNN) + * + * Returns: 0 for success + */ +int fcoe_get_wwn(struct net_device *netdev, u64 *wwn, int type) +{ + const struct net_device_ops *ops = netdev->netdev_ops; + + if (ops->ndo_fcoe_get_wwn) + return ops->ndo_fcoe_get_wwn(netdev, wwn, type); + return -EINVAL; +} +EXPORT_SYMBOL_GPL(fcoe_get_wwn); + /** * fcoe_fc_crc() - Calculates the CRC for a given frame * @fp: The frame to be checksumed |