diff options
| author | Eddie Wai <eddie.wai@broadcom.com> | 2010-11-24 02:29:29 +0300 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@suse.de> | 2010-12-21 21:24:14 +0300 |
| commit | bee348770dcaeafa57bbd32129ce0cb16a4342d6 (patch) | |
| tree | a25e1730b3652b47963176778c4c67f184fd6c3e /drivers/scsi/bnx2i/bnx2i_iscsi.c | |
| parent | 842158d7b7bc3b1a49c31f43ac20414234c33a8d (diff) | |
| download | linux-bee348770dcaeafa57bbd32129ce0cb16a4342d6.tar.xz | |
[SCSI] bnx2i: Added return code check for chip kwqe submission request
Added the handling for cases when a chip request is made to the
CNIC module but the hardware is not ready to accept. This would
lead to many unnecessary wait timeouts.
This code adds check in the connect establishment and destruction
path.
Signed-off-by: Eddie Wai <eddie.wai@broadcom.com>
Reviewed-by: Mike Christie <michaelc@cs.wisc.edu>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/bnx2i/bnx2i_iscsi.c')
| -rw-r--r-- | drivers/scsi/bnx2i/bnx2i_iscsi.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index ac60c4c29e9a..f622e89041cd 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -1682,7 +1682,9 @@ static int bnx2i_tear_down_conn(struct bnx2i_hba *hba, bnx2i_ep_destroy_list_add(hba, ep); /* destroy iSCSI context, wait for it to complete */ - bnx2i_send_conn_destroy(hba, ep); + if (bnx2i_send_conn_destroy(hba, ep)) + ep->state = EP_STATE_CLEANUP_CMPL; + wait_event_interruptible(ep->ofld_wait, (ep->state != EP_STATE_CLEANUP_START)); @@ -1781,7 +1783,18 @@ static struct iscsi_endpoint *bnx2i_ep_connect(struct Scsi_Host *shost, bnx2i_ep->ofld_timer.data = (unsigned long) bnx2i_ep; add_timer(&bnx2i_ep->ofld_timer); - bnx2i_send_conn_ofld_req(hba, bnx2i_ep); + if (bnx2i_send_conn_ofld_req(hba, bnx2i_ep)) { + if (bnx2i_ep->state == EP_STATE_OFLD_FAILED_CID_BUSY) { + printk(KERN_ALERT "bnx2i (%s): iscsi cid %d is busy\n", + hba->netdev->name, bnx2i_ep->ep_iscsi_cid); + rc = -EBUSY; + } else + rc = -ENOSPC; + printk(KERN_ALERT "bnx2i (%s): unable to send conn offld kwqe" + "\n", hba->netdev->name); + bnx2i_ep_ofld_list_del(hba, bnx2i_ep); + goto conn_failed; + } /* Wait for CNIC hardware to setup conn context and return 'cid' */ wait_event_interruptible(bnx2i_ep->ofld_wait, |