Commit Graph

13 Commits

Author SHA1 Message Date
Karen Xie 154229a33e [SCSI] cxgb3i: fix function descriptions
Limit function descriptions to be one line.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-03-13 15:30:34 -05:00
Mike Christie 5e7facb77f [SCSI] iscsi class: remove host no argument from session creation callout
We do not need to have llds set the host no for the session's
parent, because we know the session's parent is going to be
the host. This removes it from the session creation callback
and converts the drivers.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-03-13 15:29:39 -05:00
Mike Christie 4d1083509a [SCSI] iscsi lib: remove qdepth param from iscsi host allocation
The qdepth setting was useful when we needed libiscsi to verify
the setting. Now we just need to make sure if older tools
passed in zero then we need to set some default.

So this patch just has us use the sht->cmd_per_lun or if
for LLD does a host per session then we can set it on per
host basis.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-03-13 15:28:55 -05:00
Mike Christie 32ae763e3f [SCSI] iscsi lib: have lib create work queue for transmitting IO
We were using the shost work queue which ended up being
a little akward since all iscsi hosts need a thread for
scanning, but only drivers hooked into libiscsi need
a workqueue for transmitting. So this patch moves the
xmit workqueue to the lib.

Signed-off-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-03-13 15:28:37 -05:00
Karen Xie b7e7bd3446 [SCSI] cxgb3i: update the driver version to 1.0.1
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-02-21 20:29:38 -06:00
Karen Xie 992040f540 [SCSI] cxgb3i: added missing include in cxgb3i_ddp.h
Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-02-21 20:29:37 -06:00
Karen Xie f62d0896e6 [SCSI] cxgb3i: Outgoing pdus need to observe skb's MAX_SKB_FRAGS
Need to make sure the outgoing pdu can fit into a single skb.  When
calulating the max. outgoing pdu payload size, take into consideration
of
- data can be held in the skb's fragment list, assume 512 bytes per
  fragment, and
- data can be held in the headroom.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-02-21 20:29:37 -06:00
Karen Xie 949847d195 [SCSI] cxgb3i: added per-task data to track transmit progress
added per-task struct cxgb3i_task_data to track the data transmiting
progress and the state of the pdus to be transmitted.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-02-21 20:29:37 -06:00
Karen Xie 1648b11ea7 [SCSI] cxgb3i: transmit work-request fixes
- resize the work-request credit array to be based on skb's MAX_SKB_FRAGS.
- split the skb cb into tx and rx portion
- increase the default transmit window to 128K.
- stop queueing up the outgoing pdus if transmit window is full.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-02-21 20:29:36 -06:00
Al Viro 574df408ed [SCSI] cxgb3i: add missing include
it needs scatterlist.h - indirect chain of includes doesn't work on a
lot of targets.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2009-01-07 15:48:01 -06:00
James Bottomley 58daa68a8f [SCSI] cxgb3i: fix select/depend problem
cxgb3i requires the cxgb3 net driver, so it selects it.  However,
cxgb3 has dependencies which the select cannot see.  Fix this by
separating out the cxgb3 dependencies into a separate hidden config
option (CONFIG_CHELSIO_T3_DEPENDS) and make both cxgb3 and cxgb3i
depend on it.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-30 13:09:12 -06:00
Karen Xie 73c3367403 [SCSI] cxgb3i: remove use of skb->sp
The cxgb3i was using skb->sp pointer for some internal book-keeping
which is not related to the secure path. Changed it to use skb->cb[]
instead.

Reported-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-30 10:45:34 -06:00
Karen Xie c3673464eb [SCSI] cxgb3i: Add cxgb3i iSCSI driver.
This patch implements the cxgb3i iscsi connection acceleration for the
open-iscsi initiator.

The cxgb3i driver offers the iscsi PDU based offload:
- digest insertion and verification
- payload direct-placement into host memory buffer.

Signed-off-by: Karen Xie <kxie@chelsio.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-12-30 10:45:33 -06:00