diff options
| author | Yi Zou <yi.zou@intel.com> | 2009-02-27 14:07:04 -0800 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-03-13 15:13:48 -0500 |
| commit | ea1e9a9df5e1fde7ad8878c85b4a097cad0ddcea (patch) | |
| tree | 5594c002619125f8976c7d3dacdd6791db497d2e | |
| parent | 4d288d5767f853bfca25adc7b6030dc95518cb2e (diff) | |
| download | linux-ea1e9a9df5e1fde7ad8878c85b4a097cad0ddcea.tar.bz2 | |
[SCSI] fcoe, libfc: check offload features from LLD through netdev
This checks if net_devices supports FCoE offload ops in netdev_ops and it
if it does, then sets up the corresponding flags in the associated fc_lport.
For large send offload, the maximum length supported in one large send is now
described by the added lso_max in fc_lport, which is setup initially from
netdev->gso_max_size.
Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| -rw-r--r-- | drivers/scsi/fcoe/fcoe_sw.c | 29 | ||||
| -rw-r--r-- | include/scsi/libfc.h | 1 |
2 files changed, 29 insertions, 1 deletions
diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c index da210eba1941..d99217d05104 100644 --- a/drivers/scsi/fcoe/fcoe_sw.c +++ b/drivers/scsi/fcoe/fcoe_sw.c @@ -133,6 +133,13 @@ static int fcoe_sw_lport_config(struct fc_lport *lp) /* lport fc_lport related configuration */ fc_lport_config(lp); + /* offload related configuration */ + lp->crc_offload = 0; + lp->seq_offload = 0; + lp->lro_enabled = 0; + lp->lro_xid = 0; + lp->lso_max = 0; + return 0; } @@ -186,7 +193,27 @@ static int fcoe_sw_netdev_config(struct fc_lport *lp, struct net_device *netdev) if (fc->real_dev->features & NETIF_F_SG) lp->sg_supp = 1; - +#ifdef NETIF_F_FCOE_CRC + if (netdev->features & NETIF_F_FCOE_CRC) { + lp->crc_offload = 1; + printk(KERN_DEBUG "fcoe:%s supports FCCRC offload\n", + netdev->name); + } +#endif +#ifdef NETIF_F_FSO + if (netdev->features & NETIF_F_FSO) { + lp->seq_offload = 1; + lp->lso_max = netdev->gso_max_size; + printk(KERN_DEBUG "fcoe:%s supports LSO for max len 0x%x\n", + netdev->name, lp->lso_max); + } +#endif + if (netdev->fcoe_ddp_xid) { + lp->lro_enabled = 1; + lp->lro_xid = netdev->fcoe_ddp_xid; + printk(KERN_DEBUG "fcoe:%s supports LRO for max xid 0x%x\n", + netdev->name, lp->lro_xid); + } skb_queue_head_init(&fc->fcoe_pending_queue); fc->fcoe_pending_queue_active = 0; diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h index a2e126b86e3e..61c746cf55f3 100644 --- a/include/scsi/libfc.h +++ b/include/scsi/libfc.h @@ -654,6 +654,7 @@ struct fc_lport { u16 link_speed; u16 link_supported_speeds; u16 lro_xid; /* max xid for fcoe lro */ + unsigned int lso_max; /* max large send size */ struct fc_ns_fts fcts; /* FC-4 type masks */ struct fc_els_rnid_gen rnid_gen; /* RNID information */ |