diff options
| author | Yi Zou <yi.zou@intel.com> | 2009-02-27 23:07:04 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-03-13 21:13:48 +0100 |
| commit | ea1e9a9df5e1fde7ad8878c85b4a097cad0ddcea (patch) | |
| tree | 5594c002619125f8976c7d3dacdd6791db497d2e /drivers/scsi | |
| parent | [SCSI] net: add FCoE offload support through net_device (diff) | |
| download | linux-ea1e9a9df5e1fde7ad8878c85b4a097cad0ddcea.tar.xz linux-ea1e9a9df5e1fde7ad8878c85b4a097cad0ddcea.zip | |
[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>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/fcoe/fcoe_sw.c | 29 |
1 files changed, 28 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; |