Commit ea1e9a9d authored by Yi Zou's avatar Yi Zou Committed by James Bottomley
Browse files

[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: default avatarYi Zou <yi.zou@intel.com>
Signed-off-by: default avatarJames Bottomley <James.Bottomley@HansenPartnership.com>
parent 4d288d57
......@@ -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;
......
......@@ -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 */
......
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