[PATCH 10/11] fcoe: add support to FCoE offload support in fcoe_sw through net_device
From: Yi Zou <hidden>
Date: 2009-02-27 22:07:26
Also in:
linux-scsi
Subsystem:
fcoe subsystem (libfc, libfcoe, fcoe), scsi subsystem, the rest · Maintainers:
Hannes Reinecke, "James E.J. Bottomley", "Martin K. Petersen", Linus Torvalds
This adds implementation of ddp_setup()/ddp_done() in fcoe_sw for its fcoe_sw_libfc_fcn_templ. Signed-off-by: Yi Zou <redacted> --- 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 d99217d..2bbbe3c 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, }; /**