This checkes if net_devices supports net_fcoe_ops, if it does, then sets up
the corresponding flags in the associated fc_lport.
Note that large sequence offload is already supported in the current
libfc/fcoe, only thing needed is to tell the corresponding fc_lport that LLD
is capabale of doing so by using fcoe_ops->features.
Signed-off-by: Yi Zou <yi.zou@xxxxxxxxx>
---
drivers/scsi/fcoe/fcoe_sw.c | 27 +++++++++++++++++++++++++++
1 files changed, 27 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c
index fe1bcaa..7632d7e 100644
--- a/drivers/scsi/fcoe/fcoe_sw.c
+++ b/drivers/scsi/fcoe/fcoe_sw.c
@@ -188,6 +188,33 @@ 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;
+ lp->crc_offload = 0;
+ lp->seq_offload = 0;
+ lp->lro_enabled = 0;
+ if (netdev->fcoe_ops) {
+ struct net_fcoe_ops *fops = netdev->fcoe_ops;
+
+ if (fops->features & NET_FCOE_CRC) {
+ lp->crc_offload = 1;
+ FCOE_DBG("%s supports FCoE FCCRC offload\n",
+ netdev->name);
+ }
+
+ if (fops->features & NET_FCOE_LSO) {
+ lp->seq_offload = 1;
+ FCOE_DBG("%s supports FCoE large send offload\n",
+ netdev->name);
+ }
+
+ if ((fops->features & NET_FCOE_LRO) &&
+ (fops->lro_xid)) {
+ lp->lro_enabled = 1;
+ lp->lro_xid = fops->lro_xid;
+ FCOE_DBG("%s supports FCoE large receive offload "
+ "with max read exchange id for ddp %d\n",
+ netdev->name, lp->lro_xid);
+ }
+ }
skb_queue_head_init(&fc->fcoe_pending_queue);
--
To unsubscribe from this list: send the line "unsubscribe linux-scsi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
