Commit e05620073625935290120be93a6214b1b52ae34f
Committed by
James Bottomley
James Bottomley
1 parent
b277d2aa9a
Exists in
master
and in
7 other branches
[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>
Showing 1 changed file with 38 additions and 0 deletions Side-by-side Diff
drivers/scsi/fcoe/fcoe_sw.c
| ... | ... | @@ -373,8 +373,46 @@ |
| 373 | 373 | return 0; |
| 374 | 374 | } |
| 375 | 375 | |
| 376 | +/* | |
| 377 | + * fcoe_sw_ddp_setup - calls LLD's ddp_setup through net_device | |
| 378 | + * @lp: the corresponding fc_lport | |
| 379 | + * @xid: the exchange id for this ddp transfer | |
| 380 | + * @sgl: the scatterlist describing this transfer | |
| 381 | + * @sgc: number of sg items | |
| 382 | + * | |
| 383 | + * Returns : 0 no ddp | |
| 384 | + */ | |
| 385 | +static int fcoe_sw_ddp_setup(struct fc_lport *lp, u16 xid, | |
| 386 | + struct scatterlist *sgl, unsigned int sgc) | |
| 387 | +{ | |
| 388 | + struct net_device *n = fcoe_netdev(lp); | |
| 389 | + | |
| 390 | + if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_setup) | |
| 391 | + return n->netdev_ops->ndo_fcoe_ddp_setup(n, xid, sgl, sgc); | |
| 392 | + | |
| 393 | + return 0; | |
| 394 | +} | |
| 395 | + | |
| 396 | +/* | |
| 397 | + * fcoe_sw_ddp_done - calls LLD's ddp_done through net_device | |
| 398 | + * @lp: the corresponding fc_lport | |
| 399 | + * @xid: the exchange id for this ddp transfer | |
| 400 | + * | |
| 401 | + * Returns : the length of data that have been completed by ddp | |
| 402 | + */ | |
| 403 | +static int fcoe_sw_ddp_done(struct fc_lport *lp, u16 xid) | |
| 404 | +{ | |
| 405 | + struct net_device *n = fcoe_netdev(lp); | |
| 406 | + | |
| 407 | + if (n->netdev_ops && n->netdev_ops->ndo_fcoe_ddp_done) | |
| 408 | + return n->netdev_ops->ndo_fcoe_ddp_done(n, xid); | |
| 409 | + return 0; | |
| 410 | +} | |
| 411 | + | |
| 376 | 412 | static struct libfc_function_template fcoe_sw_libfc_fcn_templ = { |
| 377 | 413 | .frame_send = fcoe_xmit, |
| 414 | + .ddp_setup = fcoe_sw_ddp_setup, | |
| 415 | + .ddp_done = fcoe_sw_ddp_done, | |
| 378 | 416 | }; |
| 379 | 417 | |
| 380 | 418 | /** |