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[SCSI] fcoe: add support to FCoE offload support in fcoe_sw through net_device

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This adds implementation of ddp_setup()/ddp_done() in fcoe_sw for its
fcoe_sw_libfc_fcn_templ.

Signed-off-by: Yi Zou <yi.zou@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Yi Zou 2009-02-27 14:07:26 -08:00 committed by James Bottomley
parent b277d2aa9a
commit e056200736
1 changed files with 38 additions and 0 deletions
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38
drivers/scsi/fcoe/fcoe_sw.c
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@ -373,8 +373,46 @@ static int fcoe_sw_destroy(struct net_device *netdev)
return 0;
}
/*
* fcoe_sw_ddp_setup - calls LLD's ddp_setup through net_device
* @lp: the corresponding fc_lport
* @xid: the exchange id for this ddp transfer
* @sgl: the scatterlist describing this transfer
* @sgc: number of sg items
*
* Returns : 0 no ddp
*/
static int fcoe_sw_ddp_setup(struct fc_lport *lp, u16 xid,
struct scatterlist *sgl, unsigned int sgc)
{
struct net_device *n = fcoe_netdev(lp);
if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_setup)
return n->netdev_ops->ndo_fcoe_ddp_setup(n, xid, sgl, sgc);
return 0;
}
/*
* fcoe_sw_ddp_done - calls LLD's ddp_done through net_device
* @lp: the corresponding fc_lport
* @xid: the exchange id for this ddp transfer
*
* Returns : the length of data that have been completed by ddp
*/
static int fcoe_sw_ddp_done(struct fc_lport *lp, u16 xid)
{
struct net_device *n = fcoe_netdev(lp);
if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_done)
return n->netdev_ops->ndo_fcoe_ddp_done(n, xid);
return 0;
}
static struct libfc_function_template fcoe_sw_libfc_fcn_templ = {
.frame_send = fcoe_xmit,
.ddp_setup = fcoe_sw_ddp_setup,
.ddp_done = fcoe_sw_ddp_done,
};
/**