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Commit 71f89491 authored by Yi Zou's avatar Yi Zou Committed by James Bottomley
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[SCSI] fcoe: support ndo_fcoe_ddp_target() for DDP in FCoE targe 



Add ddp_target() support to the Open-FCoE sw fcoe hba driver (fcoe.ko).

Signed-off-by: default avatarYi Zou <yi.zou@intel.com>
Signed-off-by: default avatarKiran Patil <kiran.patil@intel.com>
Signed-off-by: default avatarRobert Love <robert.w.love@intel.com>
Signed-off-by: default avatarJames Bottomley <JBottomley@Parallels.com>
parent 33dc362b

drivers/scsi/fcoe/fcoe.c

+25 −1
Original line number Diff line number Diff line
@@ -99,7 +99,8 @@ static void fcoe_destroy_work(struct work_struct *); 
static int fcoe_ddp_setup(struct fc_lport *, u16, struct scatterlist *,

			  unsigned int);

static int fcoe_ddp_done(struct fc_lport *, u16);



static int fcoe_ddp_target(struct fc_lport *, u16, struct scatterlist *,

			   unsigned int);

static int fcoe_cpu_callback(struct notifier_block *, unsigned long, void *);



static bool fcoe_match(struct net_device *netdev);
@@ -143,6 +144,7 @@ static struct libfc_function_template fcoe_libfc_fcn_templ = { 
	.frame_send = fcoe_xmit,

	.ddp_setup = fcoe_ddp_setup,

	.ddp_done = fcoe_ddp_done,

	.ddp_target = fcoe_ddp_target,

	.elsct_send = fcoe_elsct_send,

	.get_lesb = fcoe_get_lesb,

	.lport_set_port_id = fcoe_set_port_id,
@@ -886,6 +888,28 @@ static int fcoe_ddp_setup(struct fc_lport *lport, u16 xid, 
	return 0;

}



/**

 * fcoe_ddp_target() - Call a LLD's ddp_target through the net device

 * @lport: The local port to setup DDP for

 * @xid:   The exchange ID for this DDP transfer

 * @sgl:   The scatterlist describing this transfer

 * @sgc:   The number of sg items

 *

 * Returns: 0 if the DDP context was not configured

 */

static int fcoe_ddp_target(struct fc_lport *lport, u16 xid,

			   struct scatterlist *sgl, unsigned int sgc)

{

	struct net_device *netdev = fcoe_netdev(lport);



	if (netdev->netdev_ops->ndo_fcoe_ddp_target)

		return netdev->netdev_ops->ndo_fcoe_ddp_target(netdev, xid,

							       sgl, sgc);



	return 0;

}





/**

 * fcoe_ddp_done() - Call a LLD's ddp_done through the net device

 * @lport: The local port to complete DDP on