diff options
| author | Yi Zou <yi.zou@intel.com> | 2009-02-27 23:07:26 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2009-03-13 21:15:31 +0100 |
| commit | e05620073625935290120be93a6214b1b52ae34f (patch) | |
| tree | 1a482b87933212bd7b6ffb6419c5a23bc6c66506 /drivers/scsi/fcoe | |
| parent | [SCSI] libfc: add support of large receive offload by ddp in fc_fcp (diff) | |
| download | linux-e05620073625935290120be93a6214b1b52ae34f.tar.xz linux-e05620073625935290120be93a6214b1b52ae34f.zip | |
[SCSI] fcoe: add support to FCoE offload support in fcoe_sw through net_device
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>
Diffstat (limited to 'drivers/scsi/fcoe')
| -rw-r--r-- | drivers/scsi/fcoe/fcoe_sw.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/scsi/fcoe/fcoe_sw.c b/drivers/scsi/fcoe/fcoe_sw.c index d99217d05104..2bbbe3c0cc7b 100644 --- a/drivers/scsi/fcoe/fcoe_sw.c +++ b/drivers/scsi/fcoe/fcoe_sw.c @@ -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, }; /** |