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authorEddie Wai <eddie.wai@broadcom.com>2010-07-01 15:34:53 -0700
committerJames Bottomley <James.Bottomley@suse.de>2010-07-27 12:03:59 -0500
commite37d2c4791480e27c2e2e4a556e4d2ba1d353ff8 (patch)
tree25e5526cecab3bd1359b3b8468dc2ce0ba7116d9 /drivers/scsi/bnx2i
parent55e15c975cbf9ef8b765eba9ebadc96f2a2e5752 (diff)
downloadlinux-e37d2c4791480e27c2e2e4a556e4d2ba1d353ff8.tar.bz2
[SCSI] bnx2i: Fine tuned conn destroy and context destroy timeout values
Added variables to separate the fine tuned timeout values for connection destroy and context destroy for both 1g and 10g devices. v2: Extended the 5771X disconnect timeout from 10s to 20s as the firmware has a retransmission timeout of 16s. This fixes one of the iscsi_endpoint leak issues when the target is slow or non-responsive to our TCP FIN. Signed-off-by: Eddie Wai <eddie.wai@broadcom.com> Reviewed-by: Michael Chan <mchan@broadcom.com> Reviewed-by: Benjamin Li <benli@broadcom.com> Acked-by: Anil Veerabhadrappa <anilgv@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')
-rw-r--r--drivers/scsi/bnx2i/bnx2i.h4
-rw-r--r--drivers/scsi/bnx2i/bnx2i_iscsi.c13
2 files changed, 13 insertions, 4 deletions
diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h
index fed1a686da67..69febb6f958b 100644
--- a/drivers/scsi/bnx2i/bnx2i.h
+++ b/drivers/scsi/bnx2i/bnx2i.h
@@ -308,6 +308,8 @@ struct iscsi_cid_queue {
* @dummy_buf_dma: DMA address of 'dummy_buffer' memory buffer
* @lock: lock to synchonize access to hba structure
* @hba_shutdown_tmo: Timeout value to shutdown each connection
+ * @conn_teardown_tmo: Timeout value to tear down each connection
+ * @conn_ctx_destroy_tmo: Timeout value to destroy context of each connection
* @pci_did: PCI device ID
* @pci_vid: PCI vendor ID
* @pci_sdid: PCI subsystem device ID
@@ -387,6 +389,8 @@ struct bnx2i_hba {
struct mutex net_dev_lock;/* sync net device access */
int hba_shutdown_tmo;
+ int conn_teardown_tmo;
+ int conn_ctx_destroy_tmo;
/*
* PCI related info.
*/
diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c
index 1600e7cae191..f6eebb39fe54 100644
--- a/drivers/scsi/bnx2i/bnx2i_iscsi.c
+++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c
@@ -854,10 +854,15 @@ struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic)
spin_lock_init(&hba->lock);
mutex_init(&hba->net_dev_lock);
init_waitqueue_head(&hba->eh_wait);
- if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type))
+ if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) {
hba->hba_shutdown_tmo = 20 * HZ;
- else /* 5706/5708/5709 */
+ hba->conn_teardown_tmo = 20 * HZ;
+ hba->conn_ctx_destroy_tmo = 6 * HZ;
+ } else { /* 5706/5708/5709 */
hba->hba_shutdown_tmo = 20 * HZ;
+ hba->conn_teardown_tmo = 10 * HZ;
+ hba->conn_ctx_destroy_tmo = 2 * HZ;
+ }
if (iscsi_host_add(shost, &hba->pcidev->dev))
goto free_dump_mem;
@@ -1633,7 +1638,7 @@ static int bnx2i_tear_down_conn(struct bnx2i_hba *hba,
ep->state = EP_STATE_CLEANUP_START;
init_timer(&ep->ofld_timer);
- ep->ofld_timer.expires = 10*HZ + jiffies;
+ ep->ofld_timer.expires = hba->conn_ctx_destroy_tmo + jiffies;
ep->ofld_timer.function = bnx2i_ep_ofld_timer;
ep->ofld_timer.data = (unsigned long) ep;
add_timer(&ep->ofld_timer);
@@ -1937,7 +1942,7 @@ int bnx2i_hw_ep_disconnect(struct bnx2i_endpoint *bnx2i_ep)
bnx2i_ep->state = EP_STATE_DISCONN_START;
init_timer(&bnx2i_ep->ofld_timer);
- bnx2i_ep->ofld_timer.expires = 10*HZ + jiffies;
+ bnx2i_ep->ofld_timer.expires = hba->conn_teardown_tmo + jiffies;
bnx2i_ep->ofld_timer.function = bnx2i_ep_ofld_timer;
bnx2i_ep->ofld_timer.data = (unsigned long) bnx2i_ep;
add_timer(&bnx2i_ep->ofld_timer);